--- /dev/null
+PolarSSL ChangeLog
+
+= Version 1.1.1 released on 2012-01-23
+Bugfix
+ * Check for failed malloc() in ssl_set_hostname() and x509_get_entries()
+ (Closes ticket #47, found by Hugo Leisink)
+ * Fixed issues with Intel compiler on 64-bit systems (Closes ticket #50)
+ * Fixed multiple compiler warnings for VS6 and armcc
+ * Fixed bug in CTR_CRBG selftest
+
+= Version 1.1.0 released on 2011-12-22
+Features
+ * Added ssl_session_reset() to allow better multi-connection pools of
+ SSL contexts without needing to set all non-connection-specific
+ data and pointers again. Adapted ssl_server to use this functionality.
+ * Added ssl_set_max_version() to allow clients to offer a lower maximum
+ supported version to a server to help buggy server implementations.
+ (Closes ticket #36)
+ * Added cipher_get_cipher_mode() and cipher_get_cipher_operation()
+ introspection functions (Closes ticket #40)
+ * Added CTR_DRBG based on AES-256-CTR (NIST SP 800-90) random generator
+ * Added a generic entropy accumulator that provides support for adding
+ custom entropy sources and added some generic and platform dependent
+ entropy sources
+
+Changes
+ * Documentation for AES and Camellia in modes CTR and CFB128 clarified.
+ * Fixed rsa_encrypt and rsa_decrypt examples to use public key for
+ encryption and private key for decryption. (Closes ticket #34)
+ * Inceased maximum size of ASN1 length reads to 32-bits.
+ * Added an EXPLICIT tag number parameter to x509_get_ext()
+ * Added a separate CRL entry extension parsing function
+ * Separated the ASN.1 parsing code from the X.509 specific parsing code.
+ So now there is a module that is controlled with POLARSSL_ASN1_PARSE_C.
+ * Changed the defined key-length of DES ciphers in cipher.h to include the
+ parity bits, to prevent mistakes in copying data. (Closes ticket #33)
+ * Loads of minimal changes to better support WINCE as a build target
+ (Credits go to Marco Lizza)
+ * Added POLARSSL_MPI_WINDOW_SIZE definition to allow easier time to memory
+ trade-off
+ * Introduced POLARSSL_MPI_MAX_SIZE and POLARSSL_MPI_MAX_BITS for MPI size
+ management (Closes ticket #44)
+ * Changed the used random function pointer to more flexible format. Renamed
+ havege_rand() to havege_random() to prevent mistakes. Lots of changes as
+ a consequence in library code and programs
+ * Moved all examples programs to use the new entropy and CTR_DRBG
+ * Added permissive certificate parsing to x509parse_crt() and
+ x509parse_crtfile(). With permissive parsing the parsing does not stop on
+ encountering a parse-error. Beware that the meaning of return values has
+ changed!
+ * All error codes are now negative. Even on mermory failures and IO errors.
+
+Bugfix
+ * Fixed faulty HMAC-MD2 implementation. Found by dibac. (Closes
+ ticket #37)
+ * Fixed a bug where the CRL parser expected an EXPLICIT ASN.1 tag
+ before version numbers
+ * Allowed X509 key usage parsing to accept 4 byte values instead of the
+ standard 1 byte version sometimes used by Microsoft. (Closes ticket #38)
+ * Fixed incorrect behaviour in case of RSASSA-PSS with a salt length
+ smaller than the hash length. (Closes ticket #41)
+ * If certificate serial is longer than 32 octets, serial number is now
+ appended with '....' after first 28 octets
+ * Improved build support for s390x and sparc64 in bignum.h
+ * Fixed MS Visual C++ name clash with int64 in sha4.h
+ * Corrected removal of leading "00:" in printing serial numbers in
+ certificates and CRLs
+
+= Version 1.0.0 released on 2011-07-27
+Features
+ * Expanded cipher layer with support for CFB128 and CTR mode
+ * Added rsa_encrypt and rsa_decrypt simple example programs.
+
+Changes
+ * The generic cipher and message digest layer now have normal error
+ codes instead of integers
+
+Bugfix
+ * Undid faulty bug fix in ssl_write() when flushing old data (Ticket
+ #18)
+
+= Version 0.99-pre5 released on 2011-05-26
+Features
+ * Added additional Cipher Block Modes to symmetric ciphers
+ (AES CTR, Camellia CTR, XTEA CBC) including the option to
+ enable and disable individual modes when needed
+ * Functions requiring File System functions can now be disabled
+ by undefining POLARSSL_FS_IO
+ * A error_strerror function() has been added to translate between
+ error codes and their description.
+ * Added mpi_get_bit() and mpi_set_bit() individual bit setter/getter
+ functions.
+ * Added ssl_mail_client and ssl_fork_server as example programs.
+
+Changes
+ * Major argument / variable rewrite. Introduced use of size_t
+ instead of int for buffer lengths and loop variables for
+ better unsigned / signed use. Renamed internal bigint types
+ t_int and t_dbl to t_uint and t_udbl in the process
+ * mpi_init() and mpi_free() now only accept a single MPI
+ argument and do not accept variable argument lists anymore.
+ * The error codes have been remapped and combining error codes
+ is now done with a PLUS instead of an OR as error codes
+ used are negative.
+ * Changed behaviour of net_read(), ssl_fetch_input() and ssl_recv().
+ net_recv() now returns 0 on EOF instead of
+ POLARSSL_ERR_NET_CONN_RESET. ssl_fetch_input() returns
+ POLARSSL_ERR_SSL_CONN_EOF on an EOF from its f_recv() function.
+ ssl_read() returns 0 if a POLARSSL_ERR_SSL_CONN_EOF is received
+ after the handshake.
+ * Network functions now return POLARSSL_ERR_NET_WANT_READ or
+ POLARSSL_ERR_NET_WANT_WRITE instead of the ambiguous
+ POLARSSL_ERR_NET_TRY_AGAIN
+
+= Version 0.99-pre4 released on 2011-04-01
+Features
+ * Added support for PKCS#1 v2.1 encoding and thus support
+ for the RSAES-OAEP and RSASSA-PSS operations.
+ * Reading of Public Key files incorporated into default x509
+ functionality as well.
+ * Added mpi_fill_random() for centralized filling of big numbers
+ with random data (Fixed ticket #10)
+
+Changes
+ * Debug print of MPI now removes leading zero octets and
+ displays actual bit size of the value.
+ * x509parse_key() (and as a consequence x509parse_keyfile())
+ does not zeroize memory in advance anymore. Use rsa_init()
+ before parsing a key or keyfile!
+
+Bugfix
+ * Debug output of MPI's now the same independent of underlying
+ platform (32-bit / 64-bit) (Fixes ticket #19, found by Mads
+ Kiilerich and Mihai Militaru)
+ * Fixed bug in ssl_write() when flushing old data (Fixed ticket
+ #18, found by Nikolay Epifanov)
+ * Fixed proper handling of RSASSA-PSS verification with variable
+ length salt lengths
+
+= Version 0.99-pre3 released on 2011-02-28
+This release replaces version 0.99-pre2 which had possible copyright issues.
+Features
+ * Parsing PEM private keys encrypted with DES and AES
+ are now supported as well (Fixes ticket #5)
+ * Added crl_app program to allow easy reading and
+ printing of X509 CRLs from file
+
+Changes
+ * Parsing of PEM files moved to separate module (Fixes
+ ticket #13). Also possible to remove PEM support for
+ systems only using DER encoding
+
+Bugfixes
+ * Corrected parsing of UTCTime dates before 1990 and
+ after 1950
+ * Support more exotic OID's when parsing certificates
+ (found by Mads Kiilerich)
+ * Support more exotic name representations when parsing
+ certificates (found by Mads Kiilerich)
+ * Replaced the expired test certificates
+ * Do not bail out if no client certificate specified. Try
+ to negotiate anonymous connection (Fixes ticket #12,
+ found by Boris Krasnovskiy)
+
+Security fixes
+ * Fixed a possible Man-in-the-Middle attack on the
+ Diffie Hellman key exchange (thanks to Larry Highsmith,
+ Subreption LLC)
+
+= Version 0.99-pre1 released on 2011-01-30
+Features
+Note: Most of these features have been donated by Fox-IT
+ * Added Doxygen source code documentation parts
+ * Added reading of DHM context from memory and file
+ * Improved X509 certificate parsing to include extended
+ certificate fields, including Key Usage
+ * Improved certificate verification and verification
+ against the available CRLs
+ * Detection for DES weak keys and parity bits added
+ * Improvements to support integration in other
+ applications:
+ + Added generic message digest and cipher wrapper
+ + Improved information about current capabilities,
+ status, objects and configuration
+ + Added verification callback on certificate chain
+ verification to allow external blacklisting
+ + Additional example programs to show usage
+ * Added support for PKCS#11 through the use of the
+ libpkcs11-helper library
+
+Changes
+ * x509parse_time_expired() checks time in addition to
+ the existing date check
+ * The ciphers member of ssl_context and the cipher member
+ of ssl_session have been renamed to ciphersuites and
+ ciphersuite respectively. This clarifies the difference
+ with the generic cipher layer and is better naming
+ altogether
+
+= Version 0.14.0 released on 2010-08-16
+Features
+ * Added support for SSL_EDH_RSA_AES_128_SHA and
+ SSL_EDH_RSA_CAMELLIA_128_SHA ciphersuites
+ * Added compile-time and run-time version information
+ * Expanded ssl_client2 arguments for more flexibility
+ * Added support for TLS v1.1
+
+Changes
+ * Made Makefile cleaner
+ * Removed dependency on rand() in rsa_pkcs1_encrypt().
+ Now using random fuction provided to function and
+ changed the prototype of rsa_pkcs1_encrypt(),
+ rsa_init() and rsa_gen_key().
+ * Some SSL defines were renamed in order to avoid
+ future confusion
+
+Bug fixes
+ * Fixed CMake out of source build for tests (found by
+ kkert)
+ * rsa_check_private() now supports PKCS1v2 keys as well
+ * Fixed deadlock in rsa_pkcs1_encrypt() on failing random
+ generator
+
+= Version 0.13.1 released on 2010-03-24
+Bug fixes
+ * Fixed Makefile in library that was mistakenly merged
+ * Added missing const string fixes
+
+= Version 0.13.0 released on 2010-03-21
+Features
+ * Added option parsing for host and port selection to
+ ssl_client2
+ * Added support for GeneralizedTime in X509 parsing
+ * Added cert_app program to allow easy reading and
+ printing of X509 certificates from file or SSL
+ connection.
+
+Changes
+ * Added const correctness for main code base
+ * X509 signature algorithm determination is now
+ in a function to allow easy future expansion
+ * Changed symmetric cipher functions to
+ identical interface (returning int result values)
+ * Changed ARC4 to use seperate input/output buffer
+ * Added reset function for HMAC context as speed-up
+ for specific use-cases
+
+Bug fixes
+ * Fixed bug resulting in failure to send the last
+ certificate in the chain in ssl_write_certificate() and
+ ssl_write_certificate_request() (found by fatbob)
+ * Added small fixes for compiler warnings on a Mac
+ (found by Frank de Brabander)
+ * Fixed algorithmic bug in mpi_is_prime() (found by
+ Smbat Tonoyan)
+
+= Version 0.12.1 released on 2009-10-04
+Changes
+ * Coverage test definitions now support 'depends_on'
+ tagging system.
+ * Tests requiring specific hashing algorithms now honor
+ the defines.
+
+Bug fixes
+ * Changed typo in #ifdef in x509parse.c (found
+ by Eduardo)
+
+= Version 0.12.0 released on 2009-07-28
+Features
+ * Added CMake makefiles as alternative to regular Makefiles.
+ * Added preliminary Code Coverage tests for AES, ARC4,
+ Base64, MPI, SHA-family, MD-family, HMAC-SHA-family,
+ Camellia, DES, 3-DES, RSA PKCS#1, XTEA, Diffie-Hellman
+ and X509parse.
+
+Changes
+ * Error codes are not (necessarily) negative. Keep
+ this is mind when checking for errors.
+ * RSA_RAW renamed to SIG_RSA_RAW for consistency.
+ * Fixed typo in name of POLARSSL_ERR_RSA_OUTPUT_TOO_LARGE.
+ * Changed interface for AES and Camellia setkey functions
+ to indicate invalid key lengths.
+
+Bug fixes
+ * Fixed include location of endian.h on FreeBSD (found by
+ Gabriel)
+ * Fixed include location of endian.h and name clash on
+ Apples (found by Martin van Hensbergen)
+ * Fixed HMAC-MD2 by modifying md2_starts(), so that the
+ required HMAC ipad and opad variables are not cleared.
+ (found by code coverage tests)
+ * Prevented use of long long in bignum if
+ POLARSSL_HAVE_LONGLONG not defined (found by Giles
+ Bathgate).
+ * Fixed incorrect handling of negative strings in
+ mpi_read_string() (found by code coverage tests).
+ * Fixed segfault on handling empty rsa_context in
+ rsa_check_pubkey() and rsa_check_privkey() (found by
+ code coverage tests).
+ * Fixed incorrect handling of one single negative input
+ value in mpi_add_abs() (found by code coverage tests).
+ * Fixed incorrect handling of negative first input
+ value in mpi_sub_abs() (found by code coverage tests).
+ * Fixed incorrect handling of negative first input
+ value in mpi_mod_mpi() and mpi_mod_int(). Resulting
+ change also affects mpi_write_string() (found by code
+ coverage tests).
+ * Corrected is_prime() results for 0, 1 and 2 (found by
+ code coverage tests).
+ * Fixed Camellia and XTEA for 64-bit Windows systems.
+
+= Version 0.11.1 released on 2009-05-17
+ * Fixed missing functionality for SHA-224, SHA-256, SHA384,
+ SHA-512 in rsa_pkcs1_sign()
+
+= Version 0.11.0 released on 2009-05-03
+ * Fixed a bug in mpi_gcd() so that it also works when both
+ input numbers are even and added testcases to check
+ (found by Pierre Habouzit).
+ * Added support for SHA-224, SHA-256, SHA-384 and SHA-512
+ one way hash functions with the PKCS#1 v1.5 signing and
+ verification.
+ * Fixed minor bug regarding mpi_gcd located within the
+ POLARSSL_GENPRIME block.
+ * Fixed minor memory leak in x509parse_crt() and added better
+ handling of 'full' certificate chains (found by Mathias
+ Olsson).
+ * Centralized file opening and reading for x509 files into
+ load_file()
+ * Made definition of net_htons() endian-clean for big endian
+ systems (Found by Gernot).
+ * Undefining POLARSSL_HAVE_ASM now also handles prevents asm in
+ padlock and timing code.
+ * Fixed an off-by-one buffer allocation in ssl_set_hostname()
+ responsible for crashes and unwanted behaviour.
+ * Added support for Certificate Revocation List (CRL) parsing.
+ * Added support for CRL revocation to x509parse_verify() and
+ SSL/TLS code.
+ * Fixed compatibility of XTEA and Camellia on a 64-bit system
+ (found by Felix von Leitner).
+
+= Version 0.10.0 released on 2009-01-12
+ * Migrated XySSL to PolarSSL
+ * Added XTEA symmetric cipher
+ * Added Camellia symmetric cipher
+ * Added support for ciphersuites: SSL_RSA_CAMELLIA_128_SHA,
+ SSL_RSA_CAMELLIA_256_SHA and SSL_EDH_RSA_CAMELLIA_256_SHA
+ * Fixed dangerous bug that can cause a heap overflow in
+ rsa_pkcs1_decrypt (found by Christophe Devine)
+
+================================================================
+XySSL ChangeLog
+
+= Version 0.9 released on 2008-03-16
+
+ * Added support for ciphersuite: SSL_RSA_AES_128_SHA
+ * Enabled support for large files by default in aescrypt2.c
+ * Preliminary openssl wrapper contributed by David Barrett
+ * Fixed a bug in ssl_write() that caused the same payload to
+ be sent twice in non-blocking mode when send returns EAGAIN
+ * Fixed ssl_parse_client_hello(): session id and challenge must
+ not be swapped in the SSLv2 ClientHello (found by Greg Robson)
+ * Added user-defined callback debug function (Krystian Kolodziej)
+ * Before freeing a certificate, properly zero out all cert. data
+ * Fixed the "mode" parameter so that encryption/decryption are
+ not swapped on PadLock; also fixed compilation on older versions
+ of gcc (bug reported by David Barrett)
+ * Correctly handle the case in padlock_xcryptcbc() when input or
+ ouput data is non-aligned by falling back to the software
+ implementation, as VIA Nehemiah cannot handle non-aligned buffers
+ * Fixed a memory leak in x509parse_crt() which was reported by Greg
+ Robson-Garth; some x509write.c fixes by Pascal Vizeli, thanks to
+ Matthew Page who reported several bugs
+ * Fixed x509_get_ext() to accept some rare certificates which have
+ an INTEGER instead of a BOOLEAN for BasicConstraints::cA.
+ * Added support on the client side for the TLS "hostname" extension
+ (patch contributed by David Patino)
+ * Make x509parse_verify() return BADCERT_CN_MISMATCH when an empty
+ string is passed as the CN (bug reported by spoofy)
+ * Added an option to enable/disable the BN assembly code
+ * Updated rsa_check_privkey() to verify that (D*E) = 1 % (P-1)*(Q-1)
+ * Disabled obsolete hash functions by default (MD2, MD4); updated
+ selftest and benchmark to not test ciphers that have been disabled
+ * Updated x509parse_cert_info() to correctly display byte 0 of the
+ serial number, setup correct server port in the ssl client example
+ * Fixed a critical denial-of-service with X.509 cert. verification:
+ peer may cause xyssl to loop indefinitely by sending a certificate
+ for which the RSA signature check fails (bug reported by Benoit)
+ * Added test vectors for: AES-CBC, AES-CFB, DES-CBC and 3DES-CBC,
+ HMAC-MD5, HMAC-SHA1, HMAC-SHA-256, HMAC-SHA-384, and HMAC-SHA-512
+ * Fixed HMAC-SHA-384 and HMAC-SHA-512 (thanks to Josh Sinykin)
+ * Modified ssl_parse_client_key_exchange() to protect against
+ Daniel Bleichenbacher attack on PKCS#1 v1.5 padding, as well
+ as the Klima-Pokorny-Rosa extension of Bleichenbacher's attack
+ * Updated rsa_gen_key() so that ctx->N is always nbits in size
+ * Fixed assembly PPC compilation errors on Mac OS X, thanks to
+ David Barrett and Dusan Semen
+
+= Version 0.8 released on 2007-10-20
+
+ * Modified the HMAC functions to handle keys larger
+ than 64 bytes, thanks to Stephane Desneux and gary ng
+ * Fixed ssl_read_record() to properly update the handshake
+ message digests, which fixes IE6/IE7 client authentication
+ * Cleaned up the XYSSL* #defines, suggested by Azriel Fasten
+ * Fixed net_recv(), thanks to Lorenz Schori and Egon Kocjan
+ * Added user-defined callbacks for handling I/O and sessions
+ * Added lots of debugging output in the SSL/TLS functions
+ * Added preliminary X.509 cert. writing by Pascal Vizeli
+ * Added preliminary support for the VIA PadLock routines
+ * Added AES-CFB mode of operation, contributed by chmike
+ * Added an SSL/TLS stress testing program (ssl_test.c)
+ * Updated the RSA PKCS#1 code to allow choosing between
+ RSA_PUBLIC and RSA_PRIVATE, as suggested by David Barrett
+ * Updated ssl_read() to skip 0-length records from OpenSSL
+ * Fixed the make install target to comply with *BSD make
+ * Fixed a bug in mpi_read_binary() on 64-bit platforms
+ * mpi_is_prime() speedups, thanks to Kevin McLaughlin
+ * Fixed a long standing memory leak in mpi_is_prime()
+ * Replaced realloc with malloc in mpi_grow(), and set
+ the sign of zero as positive in mpi_init() (reported
+ by Jonathan M. McCune)
+
+= Version 0.7 released on 2007-07-07
+
+ * Added support for the MicroBlaze soft-core processor
+ * Fixed a bug in ssl_tls.c which sometimes prevented SSL
+ connections from being established with non-blocking I/O
+ * Fixed a couple bugs in the VS6 and UNIX Makefiles
+ * Fixed the "PIC register ebx clobbered in asm" bug
+ * Added HMAC starts/update/finish support functions
+ * Added the SHA-224, SHA-384 and SHA-512 hash functions
+ * Fixed the net_set_*block routines, thanks to Andreas
+ * Added a few demonstration programs: md5sum, sha1sum,
+ dh_client, dh_server, rsa_genkey, rsa_sign, rsa_verify
+ * Added new bignum import and export helper functions
+ * Rewrote README.txt in program/ssl/ca to better explain
+ how to create a test PKI
+
+= Version 0.6 released on 2007-04-01
+
+ * Ciphers used in SSL/TLS can now be disabled at compile
+ time, to reduce the memory footprint on embedded systems
+ * Added multiply assembly code for the TriCore and modified
+ havege_struct for this processor, thanks to David Patiño
+ * Added multiply assembly code for 64-bit PowerPCs,
+ thanks to Peking University and the OSU Open Source Lab
+ * Added experimental support of Quantum Cryptography
+ * Added support for autoconf, contributed by Arnaud Cornet
+ * Fixed "long long" compilation issues on IA-64 and PPC64
+ * Fixed a bug introduced in xyssl-0.5/timing.c: hardclock
+ was not being correctly defined on ARM and MIPS
+
+= Version 0.5 released on 2007-03-01
+
+ * Added multiply assembly code for SPARC and Alpha
+ * Added (beta) support for non-blocking I/O operations
+ * Implemented session resuming and client authentication
+ * Fixed some portability issues on WinCE, MINIX 3, Plan9
+ (thanks to Benjamin Newman), HP-UX, FreeBSD and Solaris
+ * Improved the performance of the EDH key exchange
+ * Fixed a bug that caused valid packets with a payload
+ size of 16384 bytes to be rejected
+
+= Version 0.4 released on 2007-02-01
+
+ * Added support for Ephemeral Diffie-Hellman key exchange
+ * Added multiply asm code for SSE2, ARM, PPC, MIPS and M68K
+ * Various improvement to the modular exponentiation code
+ * Rewrote the headers to generate the API docs with doxygen
+ * Fixed a bug in ssl_encrypt_buf (incorrect padding was
+ generated) and in ssl_parse_client_hello (max. client
+ version was not properly set), thanks to Didier Rebeix
+ * Fixed another bug in ssl_parse_client_hello: clients with
+ cipherlists larger than 96 bytes were incorrectly rejected
+ * Fixed a couple memory leak in x509_read.c
+
+= Version 0.3 released on 2007-01-01
+
+ * Added server-side SSLv3 and TLSv1.0 support
+ * Multiple fixes to enhance the compatibility with g++,
+ thanks to Xosé Antón Otero Ferreira
+ * Fixed a bug in the CBC code, thanks to dowst; also,
+ the bignum code is no longer dependant on long long
+ * Updated rsa_pkcs1_sign to handle arbitrary large inputs
+ * Updated timing.c for improved compatibility with i386
+ and 486 processors, thanks to Arnaud Cornet
+
+= Version 0.2 released on 2006-12-01
+
+ * Updated timing.c to support ARM and MIPS arch
+ * Updated the MPI code to support 8086 on MSVC 1.5
+ * Added the copyright notice at the top of havege.h
+ * Fixed a bug in sha2_hmac, thanks to newsoft/Wenfang Zhang
+ * Fixed a bug reported by Adrian Rüegsegger in x509_read_key
+ * Fixed a bug reported by Torsten Lauter in ssl_read_record
+ * Fixed a bug in rsa_check_privkey that would wrongly cause
+ valid RSA keys to be dismissed (thanks to oldwolf)
+ * Fixed a bug in mpi_is_prime that caused some primes to fail
+ the Miller-Rabin primality test
+
+ I'd also like to thank Younès Hafri for the CRUX linux port,
+ Khalil Petit who added XySSL into pkgsrc and Arnaud Cornet
+ who maintains the Debian package :-)
+
+= Version 0.1 released on 2006-11-01
+
--- /dev/null
+ GNU GENERAL PUBLIC LICENSE
+ Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+ Preamble
+
+ The licenses for most software are designed to take away your
+freedom to share and change it. By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
+software--to make sure the software is free for all its users. This
+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it. (Some other Free Software Foundation software is covered by
+the GNU Lesser General Public License instead.) You can apply it to
+your programs, too.
+
+ When we speak of free software, we are referring to freedom, not
+price. Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+this service if you wish), that you receive source code or can get it
+if you want it, that you can change the software or use pieces of it
+in new free programs; and that you know you can do these things.
+
+ To protect your rights, we need to make restrictions that forbid
+anyone to deny you these rights or to ask you to surrender the rights.
+These restrictions translate to certain responsibilities for you if you
+distribute copies of the software, or if you modify it.
+
+ For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must give the recipients all the rights that
+you have. You must make sure that they, too, receive or can get the
+source code. And you must show them these terms so they know their
+rights.
+
+ We protect your rights with two steps: (1) copyright the software, and
+(2) offer you this license which gives you legal permission to copy,
+distribute and/or modify the software.
+
+ Also, for each author's protection and ours, we want to make certain
+that everyone understands that there is no warranty for this free
+software. If the software is modified by someone else and passed on, we
+want its recipients to know that what they have is not the original, so
+that any problems introduced by others will not reflect on the original
+authors' reputations.
+
+ Finally, any free program is threatened constantly by software
+patents. We wish to avoid the danger that redistributors of a free
+program will individually obtain patent licenses, in effect making the
+program proprietary. To prevent this, we have made it clear that any
+patent must be licensed for everyone's free use or not licensed at all.
+
+ The precise terms and conditions for copying, distribution and
+modification follow.
+
+ GNU GENERAL PUBLIC LICENSE
+ TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+ 0. This License applies to any program or other work which contains
+a notice placed by the copyright holder saying it may be distributed
+under the terms of this General Public License. The "Program", below,
+refers to any such program or work, and a "work based on the Program"
+means either the Program or any derivative work under copyright law:
+that is to say, a work containing the Program or a portion of it,
+either verbatim or with modifications and/or translated into another
+language. (Hereinafter, translation is included without limitation in
+the term "modification".) Each licensee is addressed as "you".
+
+Activities other than copying, distribution and modification are not
+covered by this License; they are outside its scope. The act of
+running the Program is not restricted, and the output from the Program
+is covered only if its contents constitute a work based on the
+Program (independent of having been made by running the Program).
+Whether that is true depends on what the Program does.
+
+ 1. You may copy and distribute verbatim copies of the Program's
+source code as you receive it, in any medium, provided that you
+conspicuously and appropriately publish on each copy an appropriate
+copyright notice and disclaimer of warranty; keep intact all the
+notices that refer to this License and to the absence of any warranty;
+and give any other recipients of the Program a copy of this License
+along with the Program.
+
+You may charge a fee for the physical act of transferring a copy, and
+you may at your option offer warranty protection in exchange for a fee.
+
+ 2. You may modify your copy or copies of the Program or any portion
+of it, thus forming a work based on the Program, and copy and
+distribute such modifications or work under the terms of Section 1
+above, provided that you also meet all of these conditions:
+
+ a) You must cause the modified files to carry prominent notices
+ stating that you changed the files and the date of any change.
+
+ b) You must cause any work that you distribute or publish, that in
+ whole or in part contains or is derived from the Program or any
+ part thereof, to be licensed as a whole at no charge to all third
+ parties under the terms of this License.
+
+ c) If the modified program normally reads commands interactively
+ when run, you must cause it, when started running for such
+ interactive use in the most ordinary way, to print or display an
+ announcement including an appropriate copyright notice and a
+ notice that there is no warranty (or else, saying that you provide
+ a warranty) and that users may redistribute the program under
+ these conditions, and telling the user how to view a copy of this
+ License. (Exception: if the Program itself is interactive but
+ does not normally print such an announcement, your work based on
+ the Program is not required to print an announcement.)
+
+These requirements apply to the modified work as a whole. If
+identifiable sections of that work are not derived from the Program,
+and can be reasonably considered independent and separate works in
+themselves, then this License, and its terms, do not apply to those
+sections when you distribute them as separate works. But when you
+distribute the same sections as part of a whole which is a work based
+on the Program, the distribution of the whole must be on the terms of
+this License, whose permissions for other licensees extend to the
+entire whole, and thus to each and every part regardless of who wrote it.
+
+Thus, it is not the intent of this section to claim rights or contest
+your rights to work written entirely by you; rather, the intent is to
+exercise the right to control the distribution of derivative or
+collective works based on the Program.
+
+In addition, mere aggregation of another work not based on the Program
+with the Program (or with a work based on the Program) on a volume of
+a storage or distribution medium does not bring the other work under
+the scope of this License.
+
+ 3. You may copy and distribute the Program (or a work based on it,
+under Section 2) in object code or executable form under the terms of
+Sections 1 and 2 above provided that you also do one of the following:
+
+ a) Accompany it with the complete corresponding machine-readable
+ source code, which must be distributed under the terms of Sections
+ 1 and 2 above on a medium customarily used for software interchange; or,
+
+ b) Accompany it with a written offer, valid for at least three
+ years, to give any third party, for a charge no more than your
+ cost of physically performing source distribution, a complete
+ machine-readable copy of the corresponding source code, to be
+ distributed under the terms of Sections 1 and 2 above on a medium
+ customarily used for software interchange; or,
+
+ c) Accompany it with the information you received as to the offer
+ to distribute corresponding source code. (This alternative is
+ allowed only for noncommercial distribution and only if you
+ received the program in object code or executable form with such
+ an offer, in accord with Subsection b above.)
+
+The source code for a work means the preferred form of the work for
+making modifications to it. For an executable work, complete source
+code means all the source code for all modules it contains, plus any
+associated interface definition files, plus the scripts used to
+control compilation and installation of the executable. However, as a
+special exception, the source code distributed need not include
+anything that is normally distributed (in either source or binary
+form) with the major components (compiler, kernel, and so on) of the
+operating system on which the executable runs, unless that component
+itself accompanies the executable.
+
+If distribution of executable or object code is made by offering
+access to copy from a designated place, then offering equivalent
+access to copy the source code from the same place counts as
+distribution of the source code, even though third parties are not
+compelled to copy the source along with the object code.
+
+ 4. You may not copy, modify, sublicense, or distribute the Program
+except as expressly provided under this License. Any attempt
+otherwise to copy, modify, sublicense or distribute the Program is
+void, and will automatically terminate your rights under this License.
+However, parties who have received copies, or rights, from you under
+this License will not have their licenses terminated so long as such
+parties remain in full compliance.
+
+ 5. You are not required to accept this License, since you have not
+signed it. However, nothing else grants you permission to modify or
+distribute the Program or its derivative works. These actions are
+prohibited by law if you do not accept this License. Therefore, by
+modifying or distributing the Program (or any work based on the
+Program), you indicate your acceptance of this License to do so, and
+all its terms and conditions for copying, distributing or modifying
+the Program or works based on it.
+
+ 6. Each time you redistribute the Program (or any work based on the
+Program), the recipient automatically receives a license from the
+original licensor to copy, distribute or modify the Program subject to
+these terms and conditions. You may not impose any further
+restrictions on the recipients' exercise of the rights granted herein.
+You are not responsible for enforcing compliance by third parties to
+this License.
+
+ 7. If, as a consequence of a court judgment or allegation of patent
+infringement or for any other reason (not limited to patent issues),
+conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License. If you cannot
+distribute so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you
+may not distribute the Program at all. For example, if a patent
+license would not permit royalty-free redistribution of the Program by
+all those who receive copies directly or indirectly through you, then
+the only way you could satisfy both it and this License would be to
+refrain entirely from distribution of the Program.
+
+If any portion of this section is held invalid or unenforceable under
+any particular circumstance, the balance of the section is intended to
+apply and the section as a whole is intended to apply in other
+circumstances.
+
+It is not the purpose of this section to induce you to infringe any
+patents or other property right claims or to contest validity of any
+such claims; this section has the sole purpose of protecting the
+integrity of the free software distribution system, which is
+implemented by public license practices. Many people have made
+generous contributions to the wide range of software distributed
+through that system in reliance on consistent application of that
+system; it is up to the author/donor to decide if he or she is willing
+to distribute software through any other system and a licensee cannot
+impose that choice.
+
+This section is intended to make thoroughly clear what is believed to
+be a consequence of the rest of this License.
+
+ 8. If the distribution and/or use of the Program is restricted in
+certain countries either by patents or by copyrighted interfaces, the
+original copyright holder who places the Program under this License
+may add an explicit geographical distribution limitation excluding
+those countries, so that distribution is permitted only in or among
+countries not thus excluded. In such case, this License incorporates
+the limitation as if written in the body of this License.
+
+ 9. The Free Software Foundation may publish revised and/or new versions
+of the General Public License from time to time. Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+Each version is given a distinguishing version number. If the Program
+specifies a version number of this License which applies to it and "any
+later version", you have the option of following the terms and conditions
+either of that version or of any later version published by the Free
+Software Foundation. If the Program does not specify a version number of
+this License, you may choose any version ever published by the Free Software
+Foundation.
+
+ 10. If you wish to incorporate parts of the Program into other free
+programs whose distribution conditions are different, write to the author
+to ask for permission. For software which is copyrighted by the Free
+Software Foundation, write to the Free Software Foundation; we sometimes
+make exceptions for this. Our decision will be guided by the two goals
+of preserving the free status of all derivatives of our free software and
+of promoting the sharing and reuse of software generally.
+
+ NO WARRANTY
+
+ 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
+FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
+OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
+PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
+OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
+TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
+PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
+REPAIR OR CORRECTION.
+
+ 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
+REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
+INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
+OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
+TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
+YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
+PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGES.
+
+ END OF TERMS AND CONDITIONS
+
+ How to Apply These Terms to Your New Programs
+
+ If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+ To do so, attach the following notices to the program. It is safest
+to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+ <one line to give the program's name and a brief idea of what it does.>
+ Copyright (C) <year> <name of author>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this
+when it starts in an interactive mode:
+
+ Gnomovision version 69, Copyright (C) year name of author
+ Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+ This is free software, and you are welcome to redistribute it
+ under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary. Here is a sample; alter the names:
+
+ Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+ `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+ <signature of Ty Coon>, 1 April 1989
+ Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs. If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library. If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.
--- /dev/null
+
+DESTDIR=/usr/local
+PREFIX=polarssl_
+
+.SILENT:
+
+all:
+ cd library && $(MAKE) all && cd ..
+
+install:
+ mkdir -p $(DESTDIR)/include/polarssl
+ cp -r include/polarssl $(DESTDIR)/include
+
+ mkdir -p $(DESTDIR)/lib
+ cp library/libpolarssl.* $(DESTDIR)/lib
+
+ mkdir -p $(DESTDIR)/bin
+ for p in programs/*/* ; do \
+ if [ -x $$p ] && [ ! -d $$p ] ; \
+ then \
+ f=$(PREFIX)`basename $$p` ; \
+ cp $$p $(DESTDIR)/bin/$$f ; \
+ fi \
+ done
+
+clean:
+ cd library && $(MAKE) clean && cd ..
+
+check:
+ ( cd tests && $(MAKE) check )
+
+apidoc:
+ mkdir -p apidoc
+ doxygen doxygen/polarssl.doxyfile
+
+apidoc_clean:
+ if [ -d apidoc ] ; \
+ then \
+ rm -rf apidoc ; \
+ fi
--- /dev/null
+README for PolarSSL
+
+-- COMPILING
+There are currently three active build systems within the PolarSSL releases:
+ - Make
+ - CMake
+ - Microsoft Visual Studio
+
+The main system used for development is CMake. That system is always the most up-to-date. The others should reflect all changes present in the CMake build system, but some features are not ported there by default.
+
+--- Make
+In order to build the source using Make, just enter at the command line:
+make
+
+In order to run the tests, enter:
+make check
+
+--- CMake
+In order to build the source using CMake, just enter at the command line:
+cmake .
+make
+
+There are 3 different active build modes specified within the CMake buildsystem:
+ - Release
+ This generates the default code without any unnecessary information in the binary files.
+ - Debug
+ This generates debug information and disables optimization of the code.
+ - Coverage
+ This generates code coverage information in addition to debug information.
+
+Switching build modes in CMake is simple. For debug mode, enter at the command line:
+cmake -D CMAKE_BUILD_TYPE:String="Debug" .
+
+In order to run the tests, enter:
+make test
+
+--- Microsoft Visual Studio
+The build files for Microsoft Visual Studio are generated for Visual Studio 6.0 all future Visual Studio's should be able to open and use this older version of the build files.
+
+The workspace 'polarssl.dsw' contains all the basic projects needed to build the library and all the programs. The files in tests are not generated and compiled, as these need a perl environment as well.
--- /dev/null
+option(INSTALL_POLARSSL_HEADERS "Install PolarSSL headers." ON)
+
+if(INSTALL_POLARSSL_HEADERS)
+
+file(GLOB headers "polarssl/*.h")
+
+install(FILES ${headers}
+ DESTINATION include/polarssl
+ PERMISSIONS OWNER_READ OWNER_WRITE GROUP_READ WORLD_READ)
+
+endif(INSTALL_POLARSSL_HEADERS)
--- /dev/null
+/**
+ * \file aes.h
+ *
+ * \brief AES block cipher
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#ifndef POLARSSL_AES_H
+#define POLARSSL_AES_H
+
+#include <string.h>
+
+#define AES_ENCRYPT 1
+#define AES_DECRYPT 0
+
+#define POLARSSL_ERR_AES_INVALID_KEY_LENGTH -0x0020 /**< Invalid key length. */
+#define POLARSSL_ERR_AES_INVALID_INPUT_LENGTH -0x0022 /**< Invalid data input length. */
+
+/**
+ * \brief AES context structure
+ */
+typedef struct
+{
+ int nr; /*!< number of rounds */
+ unsigned long *rk; /*!< AES round keys */
+ unsigned long buf[68]; /*!< unaligned data */
+}
+aes_context;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief AES key schedule (encryption)
+ *
+ * \param ctx AES context to be initialized
+ * \param key encryption key
+ * \param keysize must be 128, 192 or 256
+ *
+ * \return 0 if successful, or POLARSSL_ERR_AES_INVALID_KEY_LENGTH
+ */
+int aes_setkey_enc( aes_context *ctx, const unsigned char *key, unsigned int keysize );
+
+/**
+ * \brief AES key schedule (decryption)
+ *
+ * \param ctx AES context to be initialized
+ * \param key decryption key
+ * \param keysize must be 128, 192 or 256
+ *
+ * \return 0 if successful, or POLARSSL_ERR_AES_INVALID_KEY_LENGTH
+ */
+int aes_setkey_dec( aes_context *ctx, const unsigned char *key, unsigned int keysize );
+
+/**
+ * \brief AES-ECB block encryption/decryption
+ *
+ * \param ctx AES context
+ * \param mode AES_ENCRYPT or AES_DECRYPT
+ * \param input 16-byte input block
+ * \param output 16-byte output block
+ *
+ * \return 0 if successful
+ */
+int aes_crypt_ecb( aes_context *ctx,
+ int mode,
+ const unsigned char input[16],
+ unsigned char output[16] );
+
+/**
+ * \brief AES-CBC buffer encryption/decryption
+ * Length should be a multiple of the block
+ * size (16 bytes)
+ *
+ * \param ctx AES context
+ * \param mode AES_ENCRYPT or AES_DECRYPT
+ * \param length length of the input data
+ * \param iv initialization vector (updated after use)
+ * \param input buffer holding the input data
+ * \param output buffer holding the output data
+ *
+ * \return 0 if successful, or POLARSSL_ERR_AES_INVALID_INPUT_LENGTH
+ */
+int aes_crypt_cbc( aes_context *ctx,
+ int mode,
+ size_t length,
+ unsigned char iv[16],
+ const unsigned char *input,
+ unsigned char *output );
+
+/**
+ * \brief AES-CFB128 buffer encryption/decryption.
+ *
+ * Note: Due to the nature of CFB you should use the same key schedule for
+ * both encryption and decryption. So a context initialized with
+ * aes_setkey_enc() for both AES_ENCRYPT and AES_DECRYPT.
+ *
+ * both
+ * \param ctx AES context
+ * \param mode AES_ENCRYPT or AES_DECRYPT
+ * \param length length of the input data
+ * \param iv_off offset in IV (updated after use)
+ * \param iv initialization vector (updated after use)
+ * \param input buffer holding the input data
+ * \param output buffer holding the output data
+ *
+ * \return 0 if successful
+ */
+int aes_crypt_cfb128( aes_context *ctx,
+ int mode,
+ size_t length,
+ size_t *iv_off,
+ unsigned char iv[16],
+ const unsigned char *input,
+ unsigned char *output );
+
+/*
+ * \brief AES-CTR buffer encryption/decryption
+ *
+ * Warning: You have to keep the maximum use of your counter in mind!
+ *
+ * Note: Due to the nature of CTR you should use the same key schedule for
+ * both encryption and decryption. So a context initialized with
+ * aes_setkey_enc() for both AES_ENCRYPT and AES_DECRYPT.
+ *
+ * \param length The length of the data
+ * \param nc_off The offset in the current stream_block (for resuming
+ * within current cipher stream). The offset pointer to
+ * should be 0 at the start of a stream.
+ * \param nonce_counter The 128-bit nonce and counter.
+ * \param stream_block The saved stream-block for resuming. Is overwritten
+ * by the function.
+ * \param input The input data stream
+ * \param output The output data stream
+ *
+ * \return 0 if successful
+ */
+int aes_crypt_ctr( aes_context *ctx,
+ size_t length,
+ size_t *nc_off,
+ unsigned char nonce_counter[16],
+ unsigned char stream_block[16],
+ const unsigned char *input,
+ unsigned char *output );
+/**
+ * \brief Checkup routine
+ *
+ * \return 0 if successful, or 1 if the test failed
+ */
+int aes_self_test( int verbose );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* aes.h */
--- /dev/null
+/**
+ * \file arc4.h
+ *
+ * \brief The ARCFOUR stream cipher
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#ifndef POLARSSL_ARC4_H
+#define POLARSSL_ARC4_H
+
+#include <string.h>
+
+/**
+ * \brief ARC4 context structure
+ */
+typedef struct
+{
+ int x; /*!< permutation index */
+ int y; /*!< permutation index */
+ unsigned char m[256]; /*!< permutation table */
+}
+arc4_context;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief ARC4 key schedule
+ *
+ * \param ctx ARC4 context to be initialized
+ * \param key the secret key
+ * \param keylen length of the key
+ */
+void arc4_setup( arc4_context *ctx, const unsigned char *key, unsigned int keylen );
+
+/**
+ * \brief ARC4 cipher function
+ *
+ * \param ctx ARC4 context
+ * \param length length of the input data
+ * \param input buffer holding the input data
+ * \param output buffer for the output data
+ *
+ * \return 0 if successful
+ */
+int arc4_crypt( arc4_context *ctx, size_t length, const unsigned char *input,
+ unsigned char *output );
+
+/*
+ * \brief Checkup routine
+ *
+ * \return 0 if successful, or 1 if the test failed
+ */
+int arc4_self_test( int verbose );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* arc4.h */
--- /dev/null
+/**
+ * \file asn1.h
+ *
+ * \brief Generic ASN.1 parsing
+ *
+ * Copyright (C) 2006-2011, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#ifndef POLARSSL_ASN1_H
+#define POLARSSL_ASN1_H
+
+#include "config.h"
+
+#if defined(POLARSSL_BIGNUM_C)
+#include "bignum.h"
+#endif
+
+#include <string.h>
+
+/**
+ * \addtogroup asn1_module
+ * \{
+ */
+
+/**
+ * \name ASN1 Error codes
+ * These error codes are OR'ed to X509 error codes for
+ * higher error granularity.
+ * ASN1 is a standard to specify data structures.
+ * \{
+ */
+#define POLARSSL_ERR_ASN1_OUT_OF_DATA -0x0014 /**< Out of data when parsing an ASN1 data structure. */
+#define POLARSSL_ERR_ASN1_UNEXPECTED_TAG -0x0016 /**< ASN1 tag was of an unexpected value. */
+#define POLARSSL_ERR_ASN1_INVALID_LENGTH -0x0018 /**< Error when trying to determine the length or invalid length. */
+#define POLARSSL_ERR_ASN1_LENGTH_MISMATCH -0x001A /**< Actual length differs from expected length. */
+#define POLARSSL_ERR_ASN1_INVALID_DATA -0x001C /**< Data is invalid. (not used) */
+#define POLARSSL_ERR_ASN1_MALLOC_FAILED -0x001E /**< Memory allocation failed */
+/* \} name */
+
+/**
+ * \name DER constants
+ * These constants comply with DER encoded the ANS1 type tags.
+ * DER encoding uses hexadecimal representation.
+ * An example DER sequence is:\n
+ * - 0x02 -- tag indicating INTEGER
+ * - 0x01 -- length in octets
+ * - 0x05 -- value
+ * Such sequences are typically read into \c ::x509_buf.
+ * \{
+ */
+#define ASN1_BOOLEAN 0x01
+#define ASN1_INTEGER 0x02
+#define ASN1_BIT_STRING 0x03
+#define ASN1_OCTET_STRING 0x04
+#define ASN1_NULL 0x05
+#define ASN1_OID 0x06
+#define ASN1_UTF8_STRING 0x0C
+#define ASN1_SEQUENCE 0x10
+#define ASN1_SET 0x11
+#define ASN1_PRINTABLE_STRING 0x13
+#define ASN1_T61_STRING 0x14
+#define ASN1_IA5_STRING 0x16
+#define ASN1_UTC_TIME 0x17
+#define ASN1_GENERALIZED_TIME 0x18
+#define ASN1_UNIVERSAL_STRING 0x1C
+#define ASN1_BMP_STRING 0x1E
+#define ASN1_PRIMITIVE 0x00
+#define ASN1_CONSTRUCTED 0x20
+#define ASN1_CONTEXT_SPECIFIC 0x80
+/* \} name */
+/* \} addtogroup asn1_module */
+
+/** Returns the size of the binary string, without the trailing \\0 */
+#define OID_SIZE(x) (sizeof(x) - 1)
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \name Functions to parse ASN.1 data structures
+ * \{
+ */
+
+/**
+ * Type-length-value structure that allows for ASN1 using DER.
+ */
+typedef struct _asn1_buf
+{
+ int tag; /**< ASN1 type, e.g. ASN1_UTF8_STRING. */
+ size_t len; /**< ASN1 length, e.g. in octets. */
+ unsigned char *p; /**< ASN1 data, e.g. in ASCII. */
+}
+asn1_buf;
+
+/**
+ * Container for ASN1 bit strings.
+ */
+typedef struct _asn1_bitstring
+{
+ size_t len; /**< ASN1 length, e.g. in octets. */
+ unsigned char unused_bits; /**< Number of unused bits at the end of the string */
+ unsigned char *p; /**< Raw ASN1 data for the bit string */
+}
+asn1_bitstring;
+
+/**
+ * Container for a sequence of ASN.1 items
+ */
+typedef struct _asn1_sequence
+{
+ asn1_buf buf; /**< Buffer containing the given ASN.1 item. */
+ struct _asn1_sequence *next; /**< The next entry in the sequence. */
+}
+asn1_sequence;
+
+/**
+ * Get the length of an ASN.1 element.
+ * Updates the pointer to immediately behind the length.
+ *
+ * \param p The position in the ASN.1 data
+ * \param end End of data
+ * \param len The variable that will receive the value
+ *
+ * \return 0 if successful, POLARSSL_ERR_ASN1_OUT_OF_DATA on reaching
+ * end of data, POLARSSL_ERR_ASN1_INVALID_LENGTH if length is
+ * unparseable.
+ */
+int asn1_get_len( unsigned char **p,
+ const unsigned char *end,
+ size_t *len );
+
+/**
+ * Get the tag and length of the tag. Check for the requested tag.
+ * Updates the pointer to immediately behind the tag and length.
+ *
+ * \param p The position in the ASN.1 data
+ * \param end End of data
+ * \param len The variable that will receive the length
+ * \param tag The expected tag
+ *
+ * \return 0 if successful, POLARSSL_ERR_ASN1_UNEXPECTED_TAG if tag did
+ * not match requested tag, or another specific ASN.1 error code.
+ */
+int asn1_get_tag( unsigned char **p,
+ const unsigned char *end,
+ size_t *len, int tag );
+
+/**
+ * Retrieve a boolean ASN.1 tag and its value.
+ * Updates the pointer to immediately behind the full tag.
+ *
+ * \param p The position in the ASN.1 data
+ * \param end End of data
+ * \param val The variable that will receive the value
+ *
+ * \return 0 if successful or a specific ASN.1 error code.
+ */
+int asn1_get_bool( unsigned char **p,
+ const unsigned char *end,
+ int *val );
+
+/**
+ * Retrieve an integer ASN.1 tag and its value.
+ * Updates the pointer to immediately behind the full tag.
+ *
+ * \param p The position in the ASN.1 data
+ * \param end End of data
+ * \param val The variable that will receive the value
+ *
+ * \return 0 if successful or a specific ASN.1 error code.
+ */
+int asn1_get_int( unsigned char **p,
+ const unsigned char *end,
+ int *val );
+
+/**
+ * Retrieve a bitstring ASN.1 tag and its value.
+ * Updates the pointer to immediately behind the full tag.
+ *
+ * \param p The position in the ASN.1 data
+ * \param end End of data
+ * \param bs The variable that will receive the value
+ *
+ * \return 0 if successful or a specific ASN.1 error code.
+ */
+int asn1_get_bitstring( unsigned char **p, const unsigned char *end,
+ asn1_bitstring *bs);
+
+/**
+ * Parses and splits an ASN.1 "SEQUENCE OF <tag>"
+ * Updated the pointer to immediately behind the full sequence tag.
+ *
+ * \param p The position in the ASN.1 data
+ * \param end End of data
+ * \param cur First variable in the chain to fill
+ * \param tag Type of sequence
+ *
+ * \return 0 if successful or a specific ASN.1 error code.
+ */
+int asn1_get_sequence_of( unsigned char **p,
+ const unsigned char *end,
+ asn1_sequence *cur,
+ int tag);
+
+#if defined(POLARSSL_BIGNUM_C)
+/**
+ * Retrieve a MPI value from an integer ASN.1 tag.
+ * Updates the pointer to immediately behind the full tag.
+ *
+ * \param p The position in the ASN.1 data
+ * \param end End of data
+ * \param X The MPI that will receive the value
+ *
+ * \return 0 if successful or a specific ASN.1 or MPI error code.
+ */
+int asn1_get_mpi( unsigned char **p,
+ const unsigned char *end,
+ mpi *X );
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* asn1.h */
--- /dev/null
+/**
+ * \file base64.h
+ *
+ * \brief RFC 1521 base64 encoding/decoding
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#ifndef POLARSSL_BASE64_H
+#define POLARSSL_BASE64_H
+
+#include <string.h>
+
+#define POLARSSL_ERR_BASE64_BUFFER_TOO_SMALL -0x002A /**< Output buffer too small. */
+#define POLARSSL_ERR_BASE64_INVALID_CHARACTER -0x002C /**< Invalid character in input. */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief Encode a buffer into base64 format
+ *
+ * \param dst destination buffer
+ * \param dlen size of the buffer
+ * \param src source buffer
+ * \param slen amount of data to be encoded
+ *
+ * \return 0 if successful, or POLARSSL_ERR_BASE64_BUFFER_TOO_SMALL.
+ * *dlen is always updated to reflect the amount
+ * of data that has (or would have) been written.
+ *
+ * \note Call this function with *dlen = 0 to obtain the
+ * required buffer size in *dlen
+ */
+int base64_encode( unsigned char *dst, size_t *dlen,
+ const unsigned char *src, size_t slen );
+
+/**
+ * \brief Decode a base64-formatted buffer
+ *
+ * \param dst destination buffer
+ * \param dlen size of the buffer
+ * \param src source buffer
+ * \param slen amount of data to be decoded
+ *
+ * \return 0 if successful, POLARSSL_ERR_BASE64_BUFFER_TOO_SMALL, or
+ * POLARSSL_ERR_BASE64_INVALID_DATA if the input data is not
+ * correct. *dlen is always updated to reflect the amount
+ * of data that has (or would have) been written.
+ *
+ * \note Call this function with *dlen = 0 to obtain the
+ * required buffer size in *dlen
+ */
+int base64_decode( unsigned char *dst, size_t *dlen,
+ const unsigned char *src, size_t slen );
+
+/**
+ * \brief Checkup routine
+ *
+ * \return 0 if successful, or 1 if the test failed
+ */
+int base64_self_test( int verbose );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* base64.h */
--- /dev/null
+/**
+ * \file bignum.h
+ *
+ * \brief Multi-precision integer library
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#ifndef POLARSSL_BIGNUM_H
+#define POLARSSL_BIGNUM_H
+
+#include <stdio.h>
+#include <string.h>
+
+#include "config.h"
+
+#define POLARSSL_ERR_MPI_FILE_IO_ERROR -0x0002 /**< An error occurred while reading from or writing to a file. */
+#define POLARSSL_ERR_MPI_BAD_INPUT_DATA -0x0004 /**< Bad input parameters to function. */
+#define POLARSSL_ERR_MPI_INVALID_CHARACTER -0x0006 /**< There is an invalid character in the digit string. */
+#define POLARSSL_ERR_MPI_BUFFER_TOO_SMALL -0x0008 /**< The buffer is too small to write to. */
+#define POLARSSL_ERR_MPI_NEGATIVE_VALUE -0x000A /**< The input arguments are negative or result in illegal output. */
+#define POLARSSL_ERR_MPI_DIVISION_BY_ZERO -0x000C /**< The input argument for division is zero, which is not allowed. */
+#define POLARSSL_ERR_MPI_NOT_ACCEPTABLE -0x000E /**< The input arguments are not acceptable. */
+#define POLARSSL_ERR_MPI_MALLOC_FAILED -0x0010 /**< Memory allocation failed. */
+
+#define MPI_CHK(f) if( ( ret = f ) != 0 ) goto cleanup
+
+/*
+ * Maximum size MPIs are allowed to grow to in number of limbs.
+ */
+#define POLARSSL_MPI_MAX_LIMBS 10000
+
+/*
+ * Maximum window size used for modular exponentiation. Default: 6
+ * Minimum value: 1. Maximum value: 6.
+ *
+ * Result is an array of ( 2 << POLARSSL_MPI_WINDOW_SIZE ) MPIs used
+ * for the sliding window calculation. (So 64 by default)
+ *
+ * Reduction in size, reduces speed.
+ */
+#define POLARSSL_MPI_WINDOW_SIZE 6 /**< Maximum windows size used. */
+
+/*
+ * Maximum size of MPIs allowed in bits and bytes for user-MPIs.
+ * ( Default: 512 bytes => 4096 bits )
+ *
+ * Note: Calculations can results temporarily in larger MPIs. So the number
+ * of limbs required (POLARSSL_MPI_MAX_LIMBS) is higher.
+ */
+#define POLARSSL_MPI_MAX_SIZE 512 /**< Maximum number of bytes for usable MPIs. */
+#define POLARSSL_MPI_MAX_BITS ( 8 * POLARSSL_MPI_MAX_SIZE ) /**< Maximum number of bits for usable MPIs. */
+
+/*
+ * When reading from files with mpi_read_file() the buffer should have space
+ * for a (short) label, the MPI (in the provided radix), the newline
+ * characters and the '\0'.
+ *
+ * By default we assume at least a 10 char label, a minimum radix of 10
+ * (decimal) and a maximum of 4096 bit numbers (1234 decimal chars).
+ */
+#define POLARSSL_MPI_READ_BUFFER_SIZE 1250
+
+/*
+ * Define the base integer type, architecture-wise
+ */
+#if defined(POLARSSL_HAVE_INT8)
+typedef signed char t_sint;
+typedef unsigned char t_uint;
+typedef unsigned short t_udbl;
+#else
+#if defined(POLARSSL_HAVE_INT16)
+typedef signed short t_sint;
+typedef unsigned short t_uint;
+typedef unsigned long t_udbl;
+#else
+ typedef signed long t_sint;
+ typedef unsigned long t_uint;
+ #if defined(_MSC_VER) && defined(_M_IX86)
+ typedef unsigned __int64 t_udbl;
+ #else
+ #if defined(__GNUC__) && ( \
+ defined(__amd64__) || defined(__x86_64__) || \
+ defined(__ppc64__) || defined(__powerpc64__) || \
+ defined(__ia64__) || defined(__alpha__) || \
+ (defined(__sparc__) && defined(__arch64__)) || \
+ defined(__s390x__) )
+ typedef unsigned int t_udbl __attribute__((mode(TI)));
+ #define POLARSSL_HAVE_LONGLONG
+ #else
+ #if defined(POLARSSL_HAVE_LONGLONG)
+ typedef unsigned long long t_udbl;
+ #endif
+ #endif
+ #endif
+#endif
+#endif
+
+/**
+ * \brief MPI structure
+ */
+typedef struct
+{
+ int s; /*!< integer sign */
+ size_t n; /*!< total # of limbs */
+ t_uint *p; /*!< pointer to limbs */
+}
+mpi;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief Initialize one MPI
+ *
+ * \param X One MPI to initialize.
+ */
+void mpi_init( mpi *X );
+
+/**
+ * \brief Unallocate one MPI
+ *
+ * \param X One MPI to unallocate.
+ */
+void mpi_free( mpi *X );
+
+/**
+ * \brief Enlarge to the specified number of limbs
+ *
+ * \param X MPI to grow
+ * \param nblimbs The target number of limbs
+ *
+ * \return 0 if successful,
+ * POLARSSL_ERR_MPI_MALLOC_FAILED if memory allocation failed
+ */
+int mpi_grow( mpi *X, size_t nblimbs );
+
+/**
+ * \brief Copy the contents of Y into X
+ *
+ * \param X Destination MPI
+ * \param Y Source MPI
+ *
+ * \return 0 if successful,
+ * POLARSSL_ERR_MPI_MALLOC_FAILED if memory allocation failed
+ */
+int mpi_copy( mpi *X, const mpi *Y );
+
+/**
+ * \brief Swap the contents of X and Y
+ *
+ * \param X First MPI value
+ * \param Y Second MPI value
+ */
+void mpi_swap( mpi *X, mpi *Y );
+
+/**
+ * \brief Set value from integer
+ *
+ * \param X MPI to set
+ * \param z Value to use
+ *
+ * \return 0 if successful,
+ * POLARSSL_ERR_MPI_MALLOC_FAILED if memory allocation failed
+ */
+int mpi_lset( mpi *X, t_sint z );
+
+/*
+ * \brief Get a specific bit from X
+ *
+ * \param X MPI to use
+ * \param pos Zero-based index of the bit in X
+ *
+ * \return Either a 0 or a 1
+ */
+int mpi_get_bit( mpi *X, size_t pos );
+
+/*
+ * \brief Set a bit of X to a specific value of 0 or 1
+ *
+ * \note Will grow X if necessary to set a bit to 1 in a not yet
+ * existing limb. Will not grow if bit should be set to 0
+ *
+ * \param X MPI to use
+ * \param pos Zero-based index of the bit in X
+ * \param val The value to set the bit to (0 or 1)
+ *
+ * \return 0 if successful,
+ * POLARSSL_ERR_MPI_MALLOC_FAILED if memory allocation failed,
+ * POLARSSL_ERR_MPI_BAD_INPUT_DATA if val is not 0 or 1
+ */
+int mpi_set_bit( mpi *X, size_t pos, unsigned char val );
+
+/**
+ * \brief Return the number of least significant bits
+ *
+ * \param X MPI to use
+ */
+size_t mpi_lsb( const mpi *X );
+
+/**
+ * \brief Return the number of most significant bits
+ *
+ * \param X MPI to use
+ */
+size_t mpi_msb( const mpi *X );
+
+/**
+ * \brief Return the total size in bytes
+ *
+ * \param X MPI to use
+ */
+size_t mpi_size( const mpi *X );
+
+/**
+ * \brief Import from an ASCII string
+ *
+ * \param X Destination MPI
+ * \param radix Input numeric base
+ * \param s Null-terminated string buffer
+ *
+ * \return 0 if successful, or a POLARSSL_ERR_MPI_XXX error code
+ */
+int mpi_read_string( mpi *X, int radix, const char *s );
+
+/**
+ * \brief Export into an ASCII string
+ *
+ * \param X Source MPI
+ * \param radix Output numeric base
+ * \param s String buffer
+ * \param slen String buffer size
+ *
+ * \return 0 if successful, or a POLARSSL_ERR_MPI_XXX error code.
+ * *slen is always updated to reflect the amount
+ * of data that has (or would have) been written.
+ *
+ * \note Call this function with *slen = 0 to obtain the
+ * minimum required buffer size in *slen.
+ */
+int mpi_write_string( const mpi *X, int radix, char *s, size_t *slen );
+
+/**
+ * \brief Read X from an opened file
+ *
+ * \param X Destination MPI
+ * \param radix Input numeric base
+ * \param fin Input file handle
+ *
+ * \return 0 if successful, POLARSSL_ERR_MPI_BUFFER_TOO_SMALL if
+ * the file read buffer is too small or a
+ * POLARSSL_ERR_MPI_XXX error code
+ */
+int mpi_read_file( mpi *X, int radix, FILE *fin );
+
+/**
+ * \brief Write X into an opened file, or stdout if fout is NULL
+ *
+ * \param p Prefix, can be NULL
+ * \param X Source MPI
+ * \param radix Output numeric base
+ * \param fout Output file handle (can be NULL)
+ *
+ * \return 0 if successful, or a POLARSSL_ERR_MPI_XXX error code
+ *
+ * \note Set fout == NULL to print X on the console.
+ */
+int mpi_write_file( const char *p, const mpi *X, int radix, FILE *fout );
+
+/**
+ * \brief Import X from unsigned binary data, big endian
+ *
+ * \param X Destination MPI
+ * \param buf Input buffer
+ * \param buflen Input buffer size
+ *
+ * \return 0 if successful,
+ * POLARSSL_ERR_MPI_MALLOC_FAILED if memory allocation failed
+ */
+int mpi_read_binary( mpi *X, const unsigned char *buf, size_t buflen );
+
+/**
+ * \brief Export X into unsigned binary data, big endian
+ *
+ * \param X Source MPI
+ * \param buf Output buffer
+ * \param buflen Output buffer size
+ *
+ * \return 0 if successful,
+ * POLARSSL_ERR_MPI_BUFFER_TOO_SMALL if buf isn't large enough
+ */
+int mpi_write_binary( const mpi *X, unsigned char *buf, size_t buflen );
+
+/**
+ * \brief Left-shift: X <<= count
+ *
+ * \param X MPI to shift
+ * \param count Amount to shift
+ *
+ * \return 0 if successful,
+ * POLARSSL_ERR_MPI_MALLOC_FAILED if memory allocation failed
+ */
+int mpi_shift_l( mpi *X, size_t count );
+
+/**
+ * \brief Right-shift: X >>= count
+ *
+ * \param X MPI to shift
+ * \param count Amount to shift
+ *
+ * \return 0 if successful,
+ * POLARSSL_ERR_MPI_MALLOC_FAILED if memory allocation failed
+ */
+int mpi_shift_r( mpi *X, size_t count );
+
+/**
+ * \brief Compare unsigned values
+ *
+ * \param X Left-hand MPI
+ * \param Y Right-hand MPI
+ *
+ * \return 1 if |X| is greater than |Y|,
+ * -1 if |X| is lesser than |Y| or
+ * 0 if |X| is equal to |Y|
+ */
+int mpi_cmp_abs( const mpi *X, const mpi *Y );
+
+/**
+ * \brief Compare signed values
+ *
+ * \param X Left-hand MPI
+ * \param Y Right-hand MPI
+ *
+ * \return 1 if X is greater than Y,
+ * -1 if X is lesser than Y or
+ * 0 if X is equal to Y
+ */
+int mpi_cmp_mpi( const mpi *X, const mpi *Y );
+
+/**
+ * \brief Compare signed values
+ *
+ * \param X Left-hand MPI
+ * \param z The integer value to compare to
+ *
+ * \return 1 if X is greater than z,
+ * -1 if X is lesser than z or
+ * 0 if X is equal to z
+ */
+int mpi_cmp_int( const mpi *X, t_sint z );
+
+/**
+ * \brief Unsigned addition: X = |A| + |B|
+ *
+ * \param X Destination MPI
+ * \param A Left-hand MPI
+ * \param B Right-hand MPI
+ *
+ * \return 0 if successful,
+ * POLARSSL_ERR_MPI_MALLOC_FAILED if memory allocation failed
+ */
+int mpi_add_abs( mpi *X, const mpi *A, const mpi *B );
+
+/**
+ * \brief Unsigned substraction: X = |A| - |B|
+ *
+ * \param X Destination MPI
+ * \param A Left-hand MPI
+ * \param B Right-hand MPI
+ *
+ * \return 0 if successful,
+ * POLARSSL_ERR_MPI_NEGATIVE_VALUE if B is greater than A
+ */
+int mpi_sub_abs( mpi *X, const mpi *A, const mpi *B );
+
+/**
+ * \brief Signed addition: X = A + B
+ *
+ * \param X Destination MPI
+ * \param A Left-hand MPI
+ * \param B Right-hand MPI
+ *
+ * \return 0 if successful,
+ * POLARSSL_ERR_MPI_MALLOC_FAILED if memory allocation failed
+ */
+int mpi_add_mpi( mpi *X, const mpi *A, const mpi *B );
+
+/**
+ * \brief Signed substraction: X = A - B
+ *
+ * \param X Destination MPI
+ * \param A Left-hand MPI
+ * \param B Right-hand MPI
+ *
+ * \return 0 if successful,
+ * POLARSSL_ERR_MPI_MALLOC_FAILED if memory allocation failed
+ */
+int mpi_sub_mpi( mpi *X, const mpi *A, const mpi *B );
+
+/**
+ * \brief Signed addition: X = A + b
+ *
+ * \param X Destination MPI
+ * \param A Left-hand MPI
+ * \param b The integer value to add
+ *
+ * \return 0 if successful,
+ * POLARSSL_ERR_MPI_MALLOC_FAILED if memory allocation failed
+ */
+int mpi_add_int( mpi *X, const mpi *A, t_sint b );
+
+/**
+ * \brief Signed substraction: X = A - b
+ *
+ * \param X Destination MPI
+ * \param A Left-hand MPI
+ * \param b The integer value to subtract
+ *
+ * \return 0 if successful,
+ * POLARSSL_ERR_MPI_MALLOC_FAILED if memory allocation failed
+ */
+int mpi_sub_int( mpi *X, const mpi *A, t_sint b );
+
+/**
+ * \brief Baseline multiplication: X = A * B
+ *
+ * \param X Destination MPI
+ * \param A Left-hand MPI
+ * \param B Right-hand MPI
+ *
+ * \return 0 if successful,
+ * POLARSSL_ERR_MPI_MALLOC_FAILED if memory allocation failed
+ */
+int mpi_mul_mpi( mpi *X, const mpi *A, const mpi *B );
+
+/**
+ * \brief Baseline multiplication: X = A * b
+ * Note: b is an unsigned integer type, thus
+ * Negative values of b are ignored.
+ *
+ * \param X Destination MPI
+ * \param A Left-hand MPI
+ * \param b The integer value to multiply with
+ *
+ * \return 0 if successful,
+ * POLARSSL_ERR_MPI_MALLOC_FAILED if memory allocation failed
+ */
+int mpi_mul_int( mpi *X, const mpi *A, t_sint b );
+
+/**
+ * \brief Division by mpi: A = Q * B + R
+ *
+ * \param Q Destination MPI for the quotient
+ * \param R Destination MPI for the rest value
+ * \param A Left-hand MPI
+ * \param B Right-hand MPI
+ *
+ * \return 0 if successful,
+ * POLARSSL_ERR_MPI_MALLOC_FAILED if memory allocation failed,
+ * POLARSSL_ERR_MPI_DIVISION_BY_ZERO if B == 0
+ *
+ * \note Either Q or R can be NULL.
+ */
+int mpi_div_mpi( mpi *Q, mpi *R, const mpi *A, const mpi *B );
+
+/**
+ * \brief Division by int: A = Q * b + R
+ *
+ * \param Q Destination MPI for the quotient
+ * \param R Destination MPI for the rest value
+ * \param A Left-hand MPI
+ * \param b Integer to divide by
+ *
+ * \return 0 if successful,
+ * POLARSSL_ERR_MPI_MALLOC_FAILED if memory allocation failed,
+ * POLARSSL_ERR_MPI_DIVISION_BY_ZERO if b == 0
+ *
+ * \note Either Q or R can be NULL.
+ */
+int mpi_div_int( mpi *Q, mpi *R, const mpi *A, t_sint b );
+
+/**
+ * \brief Modulo: R = A mod B
+ *
+ * \param R Destination MPI for the rest value
+ * \param A Left-hand MPI
+ * \param B Right-hand MPI
+ *
+ * \return 0 if successful,
+ * POLARSSL_ERR_MPI_MALLOC_FAILED if memory allocation failed,
+ * POLARSSL_ERR_MPI_DIVISION_BY_ZERO if B == 0,
+ * POLARSSL_ERR_MPI_NEGATIVE_VALUE if B < 0
+ */
+int mpi_mod_mpi( mpi *R, const mpi *A, const mpi *B );
+
+/**
+ * \brief Modulo: r = A mod b
+ *
+ * \param r Destination t_uint
+ * \param A Left-hand MPI
+ * \param b Integer to divide by
+ *
+ * \return 0 if successful,
+ * POLARSSL_ERR_MPI_MALLOC_FAILED if memory allocation failed,
+ * POLARSSL_ERR_MPI_DIVISION_BY_ZERO if b == 0,
+ * POLARSSL_ERR_MPI_NEGATIVE_VALUE if b < 0
+ */
+int mpi_mod_int( t_uint *r, const mpi *A, t_sint b );
+
+/**
+ * \brief Sliding-window exponentiation: X = A^E mod N
+ *
+ * \param X Destination MPI
+ * \param A Left-hand MPI
+ * \param E Exponent MPI
+ * \param N Modular MPI
+ * \param _RR Speed-up MPI used for recalculations
+ *
+ * \return 0 if successful,
+ * POLARSSL_ERR_MPI_MALLOC_FAILED if memory allocation failed,
+ * POLARSSL_ERR_MPI_BAD_INPUT_DATA if N is negative or even
+ *
+ * \note _RR is used to avoid re-computing R*R mod N across
+ * multiple calls, which speeds up things a bit. It can
+ * be set to NULL if the extra performance is unneeded.
+ */
+int mpi_exp_mod( mpi *X, const mpi *A, const mpi *E, const mpi *N, mpi *_RR );
+
+/**
+ * \brief Fill an MPI X with size bytes of random
+ *
+ * \param X Destination MPI
+ * \param size Size in bytes
+ * \param f_rng RNG function
+ * \param p_rng RNG parameter
+ *
+ * \return 0 if successful,
+ * POLARSSL_ERR_MPI_MALLOC_FAILED if memory allocation failed
+ */
+int mpi_fill_random( mpi *X, size_t size,
+ int (*f_rng)(void *, unsigned char *, size_t),
+ void *p_rng );
+
+/**
+ * \brief Greatest common divisor: G = gcd(A, B)
+ *
+ * \param G Destination MPI
+ * \param A Left-hand MPI
+ * \param B Right-hand MPI
+ *
+ * \return 0 if successful,
+ * POLARSSL_ERR_MPI_MALLOC_FAILED if memory allocation failed
+ */
+int mpi_gcd( mpi *G, const mpi *A, const mpi *B );
+
+/**
+ * \brief Modular inverse: X = A^-1 mod N
+ *
+ * \param X Destination MPI
+ * \param A Left-hand MPI
+ * \param N Right-hand MPI
+ *
+ * \return 0 if successful,
+ * POLARSSL_ERR_MPI_MALLOC_FAILED if memory allocation failed,
+ * POLARSSL_ERR_MPI_BAD_INPUT_DATA if N is negative or nil
+ POLARSSL_ERR_MPI_NOT_ACCEPTABLE if A has no inverse mod N
+ */
+int mpi_inv_mod( mpi *X, const mpi *A, const mpi *N );
+
+/**
+ * \brief Miller-Rabin primality test
+ *
+ * \param X MPI to check
+ * \param f_rng RNG function
+ * \param p_rng RNG parameter
+ *
+ * \return 0 if successful (probably prime),
+ * POLARSSL_ERR_MPI_MALLOC_FAILED if memory allocation failed,
+ * POLARSSL_ERR_MPI_NOT_ACCEPTABLE if X is not prime
+ */
+int mpi_is_prime( mpi *X,
+ int (*f_rng)(void *, unsigned char *, size_t),
+ void *p_rng );
+
+/**
+ * \brief Prime number generation
+ *
+ * \param X Destination MPI
+ * \param nbits Required size of X in bits ( 3 <= nbits <= POLARSSL_MPI_MAX_BITS )
+ * \param dh_flag If 1, then (X-1)/2 will be prime too
+ * \param f_rng RNG function
+ * \param p_rng RNG parameter
+ *
+ * \return 0 if successful (probably prime),
+ * POLARSSL_ERR_MPI_MALLOC_FAILED if memory allocation failed,
+ * POLARSSL_ERR_MPI_BAD_INPUT_DATA if nbits is < 3
+ */
+int mpi_gen_prime( mpi *X, size_t nbits, int dh_flag,
+ int (*f_rng)(void *, unsigned char *, size_t),
+ void *p_rng );
+
+/**
+ * \brief Checkup routine
+ *
+ * \return 0 if successful, or 1 if the test failed
+ */
+int mpi_self_test( int verbose );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* bignum.h */
--- /dev/null
+/**
+ * \file bn_mul.h
+ *
+ * \brief Multi-precision integer library
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+/*
+ * Multiply source vector [s] with b, add result
+ * to destination vector [d] and set carry c.
+ *
+ * Currently supports:
+ *
+ * . IA-32 (386+) . AMD64 / EM64T
+ * . IA-32 (SSE2) . Motorola 68000
+ * . PowerPC, 32-bit . MicroBlaze
+ * . PowerPC, 64-bit . TriCore
+ * . SPARC v8 . ARM v3+
+ * . Alpha . MIPS32
+ * . C, longlong . C, generic
+ */
+#ifndef POLARSSL_BN_MUL_H
+#define POLARSSL_BN_MUL_H
+
+#include "bignum.h"
+
+#if defined(POLARSSL_HAVE_ASM)
+
+#if defined(__GNUC__)
+#if defined(__i386__)
+
+#define MULADDC_INIT \
+ asm( " \
+ movl %%ebx, %0; \
+ movl %5, %%esi; \
+ movl %6, %%edi; \
+ movl %7, %%ecx; \
+ movl %8, %%ebx; \
+ "
+
+#define MULADDC_CORE \
+ " \
+ lodsl; \
+ mull %%ebx; \
+ addl %%ecx, %%eax; \
+ adcl $0, %%edx; \
+ addl (%%edi), %%eax; \
+ adcl $0, %%edx; \
+ movl %%edx, %%ecx; \
+ stosl; \
+ "
+
+#if defined(POLARSSL_HAVE_SSE2)
+
+#define MULADDC_HUIT \
+ " \
+ movd %%ecx, %%mm1; \
+ movd %%ebx, %%mm0; \
+ movd (%%edi), %%mm3; \
+ paddq %%mm3, %%mm1; \
+ movd (%%esi), %%mm2; \
+ pmuludq %%mm0, %%mm2; \
+ movd 4(%%esi), %%mm4; \
+ pmuludq %%mm0, %%mm4; \
+ movd 8(%%esi), %%mm6; \
+ pmuludq %%mm0, %%mm6; \
+ movd 12(%%esi), %%mm7; \
+ pmuludq %%mm0, %%mm7; \
+ paddq %%mm2, %%mm1; \
+ movd 4(%%edi), %%mm3; \
+ paddq %%mm4, %%mm3; \
+ movd 8(%%edi), %%mm5; \
+ paddq %%mm6, %%mm5; \
+ movd 12(%%edi), %%mm4; \
+ paddq %%mm4, %%mm7; \
+ movd %%mm1, (%%edi); \
+ movd 16(%%esi), %%mm2; \
+ pmuludq %%mm0, %%mm2; \
+ psrlq $32, %%mm1; \
+ movd 20(%%esi), %%mm4; \
+ pmuludq %%mm0, %%mm4; \
+ paddq %%mm3, %%mm1; \
+ movd 24(%%esi), %%mm6; \
+ pmuludq %%mm0, %%mm6; \
+ movd %%mm1, 4(%%edi); \
+ psrlq $32, %%mm1; \
+ movd 28(%%esi), %%mm3; \
+ pmuludq %%mm0, %%mm3; \
+ paddq %%mm5, %%mm1; \
+ movd 16(%%edi), %%mm5; \
+ paddq %%mm5, %%mm2; \
+ movd %%mm1, 8(%%edi); \
+ psrlq $32, %%mm1; \
+ paddq %%mm7, %%mm1; \
+ movd 20(%%edi), %%mm5; \
+ paddq %%mm5, %%mm4; \
+ movd %%mm1, 12(%%edi); \
+ psrlq $32, %%mm1; \
+ paddq %%mm2, %%mm1; \
+ movd 24(%%edi), %%mm5; \
+ paddq %%mm5, %%mm6; \
+ movd %%mm1, 16(%%edi); \
+ psrlq $32, %%mm1; \
+ paddq %%mm4, %%mm1; \
+ movd 28(%%edi), %%mm5; \
+ paddq %%mm5, %%mm3; \
+ movd %%mm1, 20(%%edi); \
+ psrlq $32, %%mm1; \
+ paddq %%mm6, %%mm1; \
+ movd %%mm1, 24(%%edi); \
+ psrlq $32, %%mm1; \
+ paddq %%mm3, %%mm1; \
+ movd %%mm1, 28(%%edi); \
+ addl $32, %%edi; \
+ addl $32, %%esi; \
+ psrlq $32, %%mm1; \
+ movd %%mm1, %%ecx; \
+ "
+
+#define MULADDC_STOP \
+ " \
+ emms; \
+ movl %4, %%ebx; \
+ movl %%ecx, %1; \
+ movl %%edi, %2; \
+ movl %%esi, %3; \
+ " \
+ : "=m" (t), "=m" (c), "=m" (d), "=m" (s) \
+ : "m" (t), "m" (s), "m" (d), "m" (c), "m" (b) \
+ : "eax", "ecx", "edx", "esi", "edi" \
+ );
+
+#else
+
+#define MULADDC_STOP \
+ " \
+ movl %4, %%ebx; \
+ movl %%ecx, %1; \
+ movl %%edi, %2; \
+ movl %%esi, %3; \
+ " \
+ : "=m" (t), "=m" (c), "=m" (d), "=m" (s) \
+ : "m" (t), "m" (s), "m" (d), "m" (c), "m" (b) \
+ : "eax", "ecx", "edx", "esi", "edi" \
+ );
+#endif /* SSE2 */
+#endif /* i386 */
+
+#if defined(__amd64__) || defined (__x86_64__)
+
+#define MULADDC_INIT \
+ asm( "movq %0, %%rsi " :: "m" (s)); \
+ asm( "movq %0, %%rdi " :: "m" (d)); \
+ asm( "movq %0, %%rcx " :: "m" (c)); \
+ asm( "movq %0, %%rbx " :: "m" (b)); \
+ asm( "xorq %r8, %r8 " );
+
+#define MULADDC_CORE \
+ asm( "movq (%rsi),%rax " ); \
+ asm( "mulq %rbx " ); \
+ asm( "addq $8, %rsi " ); \
+ asm( "addq %rcx, %rax " ); \
+ asm( "movq %r8, %rcx " ); \
+ asm( "adcq $0, %rdx " ); \
+ asm( "nop " ); \
+ asm( "addq %rax, (%rdi) " ); \
+ asm( "adcq %rdx, %rcx " ); \
+ asm( "addq $8, %rdi " );
+
+#define MULADDC_STOP \
+ asm( "movq %%rcx, %0 " : "=m" (c)); \
+ asm( "movq %%rdi, %0 " : "=m" (d)); \
+ asm( "movq %%rsi, %0 " : "=m" (s) :: \
+ "rax", "rcx", "rdx", "rbx", "rsi", "rdi", "r8" );
+
+#endif /* AMD64 */
+
+#if defined(__mc68020__) || defined(__mcpu32__)
+
+#define MULADDC_INIT \
+ asm( "movl %0, %%a2 " :: "m" (s)); \
+ asm( "movl %0, %%a3 " :: "m" (d)); \
+ asm( "movl %0, %%d3 " :: "m" (c)); \
+ asm( "movl %0, %%d2 " :: "m" (b)); \
+ asm( "moveq #0, %d0 " );
+
+#define MULADDC_CORE \
+ asm( "movel %a2@+, %d1 " ); \
+ asm( "mulul %d2, %d4:%d1 " ); \
+ asm( "addl %d3, %d1 " ); \
+ asm( "addxl %d0, %d4 " ); \
+ asm( "moveq #0, %d3 " ); \
+ asm( "addl %d1, %a3@+ " ); \
+ asm( "addxl %d4, %d3 " );
+
+#define MULADDC_STOP \
+ asm( "movl %%d3, %0 " : "=m" (c)); \
+ asm( "movl %%a3, %0 " : "=m" (d)); \
+ asm( "movl %%a2, %0 " : "=m" (s) :: \
+ "d0", "d1", "d2", "d3", "d4", "a2", "a3" );
+
+#define MULADDC_HUIT \
+ asm( "movel %a2@+, %d1 " ); \
+ asm( "mulul %d2, %d4:%d1 " ); \
+ asm( "addxl %d3, %d1 " ); \
+ asm( "addxl %d0, %d4 " ); \
+ asm( "addl %d1, %a3@+ " ); \
+ asm( "movel %a2@+, %d1 " ); \
+ asm( "mulul %d2, %d3:%d1 " ); \
+ asm( "addxl %d4, %d1 " ); \
+ asm( "addxl %d0, %d3 " ); \
+ asm( "addl %d1, %a3@+ " ); \
+ asm( "movel %a2@+, %d1 " ); \
+ asm( "mulul %d2, %d4:%d1 " ); \
+ asm( "addxl %d3, %d1 " ); \
+ asm( "addxl %d0, %d4 " ); \
+ asm( "addl %d1, %a3@+ " ); \
+ asm( "movel %a2@+, %d1 " ); \
+ asm( "mulul %d2, %d3:%d1 " ); \
+ asm( "addxl %d4, %d1 " ); \
+ asm( "addxl %d0, %d3 " ); \
+ asm( "addl %d1, %a3@+ " ); \
+ asm( "movel %a2@+, %d1 " ); \
+ asm( "mulul %d2, %d4:%d1 " ); \
+ asm( "addxl %d3, %d1 " ); \
+ asm( "addxl %d0, %d4 " ); \
+ asm( "addl %d1, %a3@+ " ); \
+ asm( "movel %a2@+, %d1 " ); \
+ asm( "mulul %d2, %d3:%d1 " ); \
+ asm( "addxl %d4, %d1 " ); \
+ asm( "addxl %d0, %d3 " ); \
+ asm( "addl %d1, %a3@+ " ); \
+ asm( "movel %a2@+, %d1 " ); \
+ asm( "mulul %d2, %d4:%d1 " ); \
+ asm( "addxl %d3, %d1 " ); \
+ asm( "addxl %d0, %d4 " ); \
+ asm( "addl %d1, %a3@+ " ); \
+ asm( "movel %a2@+, %d1 " ); \
+ asm( "mulul %d2, %d3:%d1 " ); \
+ asm( "addxl %d4, %d1 " ); \
+ asm( "addxl %d0, %d3 " ); \
+ asm( "addl %d1, %a3@+ " ); \
+ asm( "addxl %d0, %d3 " );
+
+#endif /* MC68000 */
+
+#if defined(__powerpc__) || defined(__ppc__)
+#if defined(__powerpc64__) || defined(__ppc64__)
+
+#if defined(__MACH__) && defined(__APPLE__)
+
+#define MULADDC_INIT \
+ asm( "ld r3, %0 " :: "m" (s)); \
+ asm( "ld r4, %0 " :: "m" (d)); \
+ asm( "ld r5, %0 " :: "m" (c)); \
+ asm( "ld r6, %0 " :: "m" (b)); \
+ asm( "addi r3, r3, -8 " ); \
+ asm( "addi r4, r4, -8 " ); \
+ asm( "addic r5, r5, 0 " );
+
+#define MULADDC_CORE \
+ asm( "ldu r7, 8(r3) " ); \
+ asm( "mulld r8, r7, r6 " ); \
+ asm( "mulhdu r9, r7, r6 " ); \
+ asm( "adde r8, r8, r5 " ); \
+ asm( "ld r7, 8(r4) " ); \
+ asm( "addze r5, r9 " ); \
+ asm( "addc r8, r8, r7 " ); \
+ asm( "stdu r8, 8(r4) " );
+
+#define MULADDC_STOP \
+ asm( "addze r5, r5 " ); \
+ asm( "addi r4, r4, 8 " ); \
+ asm( "addi r3, r3, 8 " ); \
+ asm( "std r5, %0 " : "=m" (c)); \
+ asm( "std r4, %0 " : "=m" (d)); \
+ asm( "std r3, %0 " : "=m" (s) :: \
+ "r3", "r4", "r5", "r6", "r7", "r8", "r9" );
+
+#else
+
+#define MULADDC_INIT \
+ asm( "ld %%r3, %0 " :: "m" (s)); \
+ asm( "ld %%r4, %0 " :: "m" (d)); \
+ asm( "ld %%r5, %0 " :: "m" (c)); \
+ asm( "ld %%r6, %0 " :: "m" (b)); \
+ asm( "addi %r3, %r3, -8 " ); \
+ asm( "addi %r4, %r4, -8 " ); \
+ asm( "addic %r5, %r5, 0 " );
+
+#define MULADDC_CORE \
+ asm( "ldu %r7, 8(%r3) " ); \
+ asm( "mulld %r8, %r7, %r6 " ); \
+ asm( "mulhdu %r9, %r7, %r6 " ); \
+ asm( "adde %r8, %r8, %r5 " ); \
+ asm( "ld %r7, 8(%r4) " ); \
+ asm( "addze %r5, %r9 " ); \
+ asm( "addc %r8, %r8, %r7 " ); \
+ asm( "stdu %r8, 8(%r4) " );
+
+#define MULADDC_STOP \
+ asm( "addze %r5, %r5 " ); \
+ asm( "addi %r4, %r4, 8 " ); \
+ asm( "addi %r3, %r3, 8 " ); \
+ asm( "std %%r5, %0 " : "=m" (c)); \
+ asm( "std %%r4, %0 " : "=m" (d)); \
+ asm( "std %%r3, %0 " : "=m" (s) :: \
+ "r3", "r4", "r5", "r6", "r7", "r8", "r9" );
+
+#endif
+
+#else /* PPC32 */
+
+#if defined(__MACH__) && defined(__APPLE__)
+
+#define MULADDC_INIT \
+ asm( "lwz r3, %0 " :: "m" (s)); \
+ asm( "lwz r4, %0 " :: "m" (d)); \
+ asm( "lwz r5, %0 " :: "m" (c)); \
+ asm( "lwz r6, %0 " :: "m" (b)); \
+ asm( "addi r3, r3, -4 " ); \
+ asm( "addi r4, r4, -4 " ); \
+ asm( "addic r5, r5, 0 " );
+
+#define MULADDC_CORE \
+ asm( "lwzu r7, 4(r3) " ); \
+ asm( "mullw r8, r7, r6 " ); \
+ asm( "mulhwu r9, r7, r6 " ); \
+ asm( "adde r8, r8, r5 " ); \
+ asm( "lwz r7, 4(r4) " ); \
+ asm( "addze r5, r9 " ); \
+ asm( "addc r8, r8, r7 " ); \
+ asm( "stwu r8, 4(r4) " );
+
+#define MULADDC_STOP \
+ asm( "addze r5, r5 " ); \
+ asm( "addi r4, r4, 4 " ); \
+ asm( "addi r3, r3, 4 " ); \
+ asm( "stw r5, %0 " : "=m" (c)); \
+ asm( "stw r4, %0 " : "=m" (d)); \
+ asm( "stw r3, %0 " : "=m" (s) :: \
+ "r3", "r4", "r5", "r6", "r7", "r8", "r9" );
+
+#else
+
+#define MULADDC_INIT \
+ asm( "lwz %%r3, %0 " :: "m" (s)); \
+ asm( "lwz %%r4, %0 " :: "m" (d)); \
+ asm( "lwz %%r5, %0 " :: "m" (c)); \
+ asm( "lwz %%r6, %0 " :: "m" (b)); \
+ asm( "addi %r3, %r3, -4 " ); \
+ asm( "addi %r4, %r4, -4 " ); \
+ asm( "addic %r5, %r5, 0 " );
+
+#define MULADDC_CORE \
+ asm( "lwzu %r7, 4(%r3) " ); \
+ asm( "mullw %r8, %r7, %r6 " ); \
+ asm( "mulhwu %r9, %r7, %r6 " ); \
+ asm( "adde %r8, %r8, %r5 " ); \
+ asm( "lwz %r7, 4(%r4) " ); \
+ asm( "addze %r5, %r9 " ); \
+ asm( "addc %r8, %r8, %r7 " ); \
+ asm( "stwu %r8, 4(%r4) " );
+
+#define MULADDC_STOP \
+ asm( "addze %r5, %r5 " ); \
+ asm( "addi %r4, %r4, 4 " ); \
+ asm( "addi %r3, %r3, 4 " ); \
+ asm( "stw %%r5, %0 " : "=m" (c)); \
+ asm( "stw %%r4, %0 " : "=m" (d)); \
+ asm( "stw %%r3, %0 " : "=m" (s) :: \
+ "r3", "r4", "r5", "r6", "r7", "r8", "r9" );
+
+#endif
+
+#endif /* PPC32 */
+#endif /* PPC64 */
+
+#if defined(__sparc__)
+
+#define MULADDC_INIT \
+ asm( "ld %0, %%o0 " :: "m" (s)); \
+ asm( "ld %0, %%o1 " :: "m" (d)); \
+ asm( "ld %0, %%o2 " :: "m" (c)); \
+ asm( "ld %0, %%o3 " :: "m" (b));
+
+#define MULADDC_CORE \
+ asm( "ld [%o0], %o4 " ); \
+ asm( "inc 4, %o0 " ); \
+ asm( "ld [%o1], %o5 " ); \
+ asm( "umul %o3, %o4, %o4 " ); \
+ asm( "addcc %o4, %o2, %o4 " ); \
+ asm( "rd %y, %g1 " ); \
+ asm( "addx %g1, 0, %g1 " ); \
+ asm( "addcc %o4, %o5, %o4 " ); \
+ asm( "st %o4, [%o1] " ); \
+ asm( "addx %g1, 0, %o2 " ); \
+ asm( "inc 4, %o1 " );
+
+#define MULADDC_STOP \
+ asm( "st %%o2, %0 " : "=m" (c)); \
+ asm( "st %%o1, %0 " : "=m" (d)); \
+ asm( "st %%o0, %0 " : "=m" (s) :: \
+ "g1", "o0", "o1", "o2", "o3", "o4", "o5" );
+
+#endif /* SPARCv8 */
+
+#if defined(__microblaze__) || defined(microblaze)
+
+#define MULADDC_INIT \
+ asm( "lwi r3, %0 " :: "m" (s)); \
+ asm( "lwi r4, %0 " :: "m" (d)); \
+ asm( "lwi r5, %0 " :: "m" (c)); \
+ asm( "lwi r6, %0 " :: "m" (b)); \
+ asm( "andi r7, r6, 0xffff" ); \
+ asm( "bsrli r6, r6, 16 " );
+
+#define MULADDC_CORE \
+ asm( "lhui r8, r3, 0 " ); \
+ asm( "addi r3, r3, 2 " ); \
+ asm( "lhui r9, r3, 0 " ); \
+ asm( "addi r3, r3, 2 " ); \
+ asm( "mul r10, r9, r6 " ); \
+ asm( "mul r11, r8, r7 " ); \
+ asm( "mul r12, r9, r7 " ); \
+ asm( "mul r13, r8, r6 " ); \
+ asm( "bsrli r8, r10, 16 " ); \
+ asm( "bsrli r9, r11, 16 " ); \
+ asm( "add r13, r13, r8 " ); \
+ asm( "add r13, r13, r9 " ); \
+ asm( "bslli r10, r10, 16 " ); \
+ asm( "bslli r11, r11, 16 " ); \
+ asm( "add r12, r12, r10 " ); \
+ asm( "addc r13, r13, r0 " ); \
+ asm( "add r12, r12, r11 " ); \
+ asm( "addc r13, r13, r0 " ); \
+ asm( "lwi r10, r4, 0 " ); \
+ asm( "add r12, r12, r10 " ); \
+ asm( "addc r13, r13, r0 " ); \
+ asm( "add r12, r12, r5 " ); \
+ asm( "addc r5, r13, r0 " ); \
+ asm( "swi r12, r4, 0 " ); \
+ asm( "addi r4, r4, 4 " );
+
+#define MULADDC_STOP \
+ asm( "swi r5, %0 " : "=m" (c)); \
+ asm( "swi r4, %0 " : "=m" (d)); \
+ asm( "swi r3, %0 " : "=m" (s) :: \
+ "r3", "r4" , "r5" , "r6" , "r7" , "r8" , \
+ "r9", "r10", "r11", "r12", "r13" );
+
+#endif /* MicroBlaze */
+
+#if defined(__tricore__)
+
+#define MULADDC_INIT \
+ asm( "ld.a %%a2, %0 " :: "m" (s)); \
+ asm( "ld.a %%a3, %0 " :: "m" (d)); \
+ asm( "ld.w %%d4, %0 " :: "m" (c)); \
+ asm( "ld.w %%d1, %0 " :: "m" (b)); \
+ asm( "xor %d5, %d5 " );
+
+#define MULADDC_CORE \
+ asm( "ld.w %d0, [%a2+] " ); \
+ asm( "madd.u %e2, %e4, %d0, %d1 " ); \
+ asm( "ld.w %d0, [%a3] " ); \
+ asm( "addx %d2, %d2, %d0 " ); \
+ asm( "addc %d3, %d3, 0 " ); \
+ asm( "mov %d4, %d3 " ); \
+ asm( "st.w [%a3+], %d2 " );
+
+#define MULADDC_STOP \
+ asm( "st.w %0, %%d4 " : "=m" (c)); \
+ asm( "st.a %0, %%a3 " : "=m" (d)); \
+ asm( "st.a %0, %%a2 " : "=m" (s) :: \
+ "d0", "d1", "e2", "d4", "a2", "a3" );
+
+#endif /* TriCore */
+
+#if defined(__arm__)
+
+#if !defined(__thumb__)
+
+#define MULADDC_INIT \
+ asm( "ldr r0, %0 " :: "m" (s)); \
+ asm( "ldr r1, %0 " :: "m" (d)); \
+ asm( "ldr r2, %0 " :: "m" (c)); \
+ asm( "ldr r3, %0 " :: "m" (b));
+
+#define MULADDC_CORE \
+ asm( "ldr r4, [r0], #4 " ); \
+ asm( "mov r5, #0 " ); \
+ asm( "ldr r6, [r1] " ); \
+ asm( "umlal r2, r5, r3, r4 " ); \
+ asm( "adds r7, r6, r2 " ); \
+ asm( "adc r2, r5, #0 " ); \
+ asm( "str r7, [r1], #4 " );
+
+#define MULADDC_STOP \
+ asm( "str r2, %0 " : "=m" (c)); \
+ asm( "str r1, %0 " : "=m" (d)); \
+ asm( "str r0, %0 " : "=m" (s) :: \
+ "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7" );
+
+#endif /* Thumb */
+
+#endif /* ARMv3 */
+
+#if defined(__alpha__)
+
+#define MULADDC_INIT \
+ asm( "ldq $1, %0 " :: "m" (s)); \
+ asm( "ldq $2, %0 " :: "m" (d)); \
+ asm( "ldq $3, %0 " :: "m" (c)); \
+ asm( "ldq $4, %0 " :: "m" (b));
+
+#define MULADDC_CORE \
+ asm( "ldq $6, 0($1) " ); \
+ asm( "addq $1, 8, $1 " ); \
+ asm( "mulq $6, $4, $7 " ); \
+ asm( "umulh $6, $4, $6 " ); \
+ asm( "addq $7, $3, $7 " ); \
+ asm( "cmpult $7, $3, $3 " ); \
+ asm( "ldq $5, 0($2) " ); \
+ asm( "addq $7, $5, $7 " ); \
+ asm( "cmpult $7, $5, $5 " ); \
+ asm( "stq $7, 0($2) " ); \
+ asm( "addq $2, 8, $2 " ); \
+ asm( "addq $6, $3, $3 " ); \
+ asm( "addq $5, $3, $3 " );
+
+#define MULADDC_STOP \
+ asm( "stq $3, %0 " : "=m" (c)); \
+ asm( "stq $2, %0 " : "=m" (d)); \
+ asm( "stq $1, %0 " : "=m" (s) :: \
+ "$1", "$2", "$3", "$4", "$5", "$6", "$7" );
+
+#endif /* Alpha */
+
+#if defined(__mips__)
+
+#define MULADDC_INIT \
+ asm( "lw $10, %0 " :: "m" (s)); \
+ asm( "lw $11, %0 " :: "m" (d)); \
+ asm( "lw $12, %0 " :: "m" (c)); \
+ asm( "lw $13, %0 " :: "m" (b));
+
+#define MULADDC_CORE \
+ asm( "lw $14, 0($10) " ); \
+ asm( "multu $13, $14 " ); \
+ asm( "addi $10, $10, 4 " ); \
+ asm( "mflo $14 " ); \
+ asm( "mfhi $9 " ); \
+ asm( "addu $14, $12, $14 " ); \
+ asm( "lw $15, 0($11) " ); \
+ asm( "sltu $12, $14, $12 " ); \
+ asm( "addu $15, $14, $15 " ); \
+ asm( "sltu $14, $15, $14 " ); \
+ asm( "addu $12, $12, $9 " ); \
+ asm( "sw $15, 0($11) " ); \
+ asm( "addu $12, $12, $14 " ); \
+ asm( "addi $11, $11, 4 " );
+
+#define MULADDC_STOP \
+ asm( "sw $12, %0 " : "=m" (c)); \
+ asm( "sw $11, %0 " : "=m" (d)); \
+ asm( "sw $10, %0 " : "=m" (s) :: \
+ "$9", "$10", "$11", "$12", "$13", "$14", "$15" );
+
+#endif /* MIPS */
+#endif /* GNUC */
+
+#if (defined(_MSC_VER) && defined(_M_IX86)) || defined(__WATCOMC__)
+
+#define MULADDC_INIT \
+ __asm mov esi, s \
+ __asm mov edi, d \
+ __asm mov ecx, c \
+ __asm mov ebx, b
+
+#define MULADDC_CORE \
+ __asm lodsd \
+ __asm mul ebx \
+ __asm add eax, ecx \
+ __asm adc edx, 0 \
+ __asm add eax, [edi] \
+ __asm adc edx, 0 \
+ __asm mov ecx, edx \
+ __asm stosd
+
+#if defined(POLARSSL_HAVE_SSE2)
+
+#define EMIT __asm _emit
+
+#define MULADDC_HUIT \
+ EMIT 0x0F EMIT 0x6E EMIT 0xC9 \
+ EMIT 0x0F EMIT 0x6E EMIT 0xC3 \
+ EMIT 0x0F EMIT 0x6E EMIT 0x1F \
+ EMIT 0x0F EMIT 0xD4 EMIT 0xCB \
+ EMIT 0x0F EMIT 0x6E EMIT 0x16 \
+ EMIT 0x0F EMIT 0xF4 EMIT 0xD0 \
+ EMIT 0x0F EMIT 0x6E EMIT 0x66 EMIT 0x04 \
+ EMIT 0x0F EMIT 0xF4 EMIT 0xE0 \
+ EMIT 0x0F EMIT 0x6E EMIT 0x76 EMIT 0x08 \
+ EMIT 0x0F EMIT 0xF4 EMIT 0xF0 \
+ EMIT 0x0F EMIT 0x6E EMIT 0x7E EMIT 0x0C \
+ EMIT 0x0F EMIT 0xF4 EMIT 0xF8 \
+ EMIT 0x0F EMIT 0xD4 EMIT 0xCA \
+ EMIT 0x0F EMIT 0x6E EMIT 0x5F EMIT 0x04 \
+ EMIT 0x0F EMIT 0xD4 EMIT 0xDC \
+ EMIT 0x0F EMIT 0x6E EMIT 0x6F EMIT 0x08 \
+ EMIT 0x0F EMIT 0xD4 EMIT 0xEE \
+ EMIT 0x0F EMIT 0x6E EMIT 0x67 EMIT 0x0C \
+ EMIT 0x0F EMIT 0xD4 EMIT 0xFC \
+ EMIT 0x0F EMIT 0x7E EMIT 0x0F \
+ EMIT 0x0F EMIT 0x6E EMIT 0x56 EMIT 0x10 \
+ EMIT 0x0F EMIT 0xF4 EMIT 0xD0 \
+ EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \
+ EMIT 0x0F EMIT 0x6E EMIT 0x66 EMIT 0x14 \
+ EMIT 0x0F EMIT 0xF4 EMIT 0xE0 \
+ EMIT 0x0F EMIT 0xD4 EMIT 0xCB \
+ EMIT 0x0F EMIT 0x6E EMIT 0x76 EMIT 0x18 \
+ EMIT 0x0F EMIT 0xF4 EMIT 0xF0 \
+ EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x04 \
+ EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \
+ EMIT 0x0F EMIT 0x6E EMIT 0x5E EMIT 0x1C \
+ EMIT 0x0F EMIT 0xF4 EMIT 0xD8 \
+ EMIT 0x0F EMIT 0xD4 EMIT 0xCD \
+ EMIT 0x0F EMIT 0x6E EMIT 0x6F EMIT 0x10 \
+ EMIT 0x0F EMIT 0xD4 EMIT 0xD5 \
+ EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x08 \
+ EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \
+ EMIT 0x0F EMIT 0xD4 EMIT 0xCF \
+ EMIT 0x0F EMIT 0x6E EMIT 0x6F EMIT 0x14 \
+ EMIT 0x0F EMIT 0xD4 EMIT 0xE5 \
+ EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x0C \
+ EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \
+ EMIT 0x0F EMIT 0xD4 EMIT 0xCA \
+ EMIT 0x0F EMIT 0x6E EMIT 0x6F EMIT 0x18 \
+ EMIT 0x0F EMIT 0xD4 EMIT 0xF5 \
+ EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x10 \
+ EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \
+ EMIT 0x0F EMIT 0xD4 EMIT 0xCC \
+ EMIT 0x0F EMIT 0x6E EMIT 0x6F EMIT 0x1C \
+ EMIT 0x0F EMIT 0xD4 EMIT 0xDD \
+ EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x14 \
+ EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \
+ EMIT 0x0F EMIT 0xD4 EMIT 0xCE \
+ EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x18 \
+ EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \
+ EMIT 0x0F EMIT 0xD4 EMIT 0xCB \
+ EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x1C \
+ EMIT 0x83 EMIT 0xC7 EMIT 0x20 \
+ EMIT 0x83 EMIT 0xC6 EMIT 0x20 \
+ EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \
+ EMIT 0x0F EMIT 0x7E EMIT 0xC9
+
+#define MULADDC_STOP \
+ EMIT 0x0F EMIT 0x77 \
+ __asm mov c, ecx \
+ __asm mov d, edi \
+ __asm mov s, esi \
+
+#else
+
+#define MULADDC_STOP \
+ __asm mov c, ecx \
+ __asm mov d, edi \
+ __asm mov s, esi \
+
+#endif /* SSE2 */
+#endif /* MSVC */
+
+#endif /* POLARSSL_HAVE_ASM */
+
+#if !defined(MULADDC_CORE)
+#if defined(POLARSSL_HAVE_LONGLONG)
+
+#define MULADDC_INIT \
+{ \
+ t_udbl r; \
+ t_uint r0, r1;
+
+#define MULADDC_CORE \
+ r = *(s++) * (t_udbl) b; \
+ r0 = r; \
+ r1 = r >> biL; \
+ r0 += c; r1 += (r0 < c); \
+ r0 += *d; r1 += (r0 < *d); \
+ c = r1; *(d++) = r0;
+
+#define MULADDC_STOP \
+}
+
+#else
+#define MULADDC_INIT \
+{ \
+ t_uint s0, s1, b0, b1; \
+ t_uint r0, r1, rx, ry; \
+ b0 = ( b << biH ) >> biH; \
+ b1 = ( b >> biH );
+
+#define MULADDC_CORE \
+ s0 = ( *s << biH ) >> biH; \
+ s1 = ( *s >> biH ); s++; \
+ rx = s0 * b1; r0 = s0 * b0; \
+ ry = s1 * b0; r1 = s1 * b1; \
+ r1 += ( rx >> biH ); \
+ r1 += ( ry >> biH ); \
+ rx <<= biH; ry <<= biH; \
+ r0 += rx; r1 += (r0 < rx); \
+ r0 += ry; r1 += (r0 < ry); \
+ r0 += c; r1 += (r0 < c); \
+ r0 += *d; r1 += (r0 < *d); \
+ c = r1; *(d++) = r0;
+
+#define MULADDC_STOP \
+}
+
+#endif /* C (generic) */
+#endif /* C (longlong) */
+
+#endif /* bn_mul.h */
--- /dev/null
+/**
+ * \file camellia.h
+ *
+ * \brief Camellia block cipher
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#ifndef POLARSSL_CAMELLIA_H
+#define POLARSSL_CAMELLIA_H
+
+#include <string.h>
+
+#ifdef _MSC_VER
+#include <basetsd.h>
+typedef UINT32 uint32_t;
+#else
+#include <inttypes.h>
+#endif
+
+#define CAMELLIA_ENCRYPT 1
+#define CAMELLIA_DECRYPT 0
+
+#define POLARSSL_ERR_CAMELLIA_INVALID_KEY_LENGTH -0x0024 /**< Invalid key length. */
+#define POLARSSL_ERR_CAMELLIA_INVALID_INPUT_LENGTH -0x0026 /**< Invalid data input length. */
+
+/**
+ * \brief CAMELLIA context structure
+ */
+typedef struct
+{
+ int nr; /*!< number of rounds */
+ uint32_t rk[68]; /*!< CAMELLIA round keys */
+}
+camellia_context;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief CAMELLIA key schedule (encryption)
+ *
+ * \param ctx CAMELLIA context to be initialized
+ * \param key encryption key
+ * \param keysize must be 128, 192 or 256
+ *
+ * \return 0 if successful, or POLARSSL_ERR_CAMELLIA_INVALID_KEY_LENGTH
+ */
+int camellia_setkey_enc( camellia_context *ctx, const unsigned char *key, unsigned int keysize );
+
+/**
+ * \brief CAMELLIA key schedule (decryption)
+ *
+ * \param ctx CAMELLIA context to be initialized
+ * \param key decryption key
+ * \param keysize must be 128, 192 or 256
+ *
+ * \return 0 if successful, or POLARSSL_ERR_CAMELLIA_INVALID_KEY_LENGTH
+ */
+int camellia_setkey_dec( camellia_context *ctx, const unsigned char *key, unsigned int keysize );
+
+/**
+ * \brief CAMELLIA-ECB block encryption/decryption
+ *
+ * \param ctx CAMELLIA context
+ * \param mode CAMELLIA_ENCRYPT or CAMELLIA_DECRYPT
+ * \param input 16-byte input block
+ * \param output 16-byte output block
+ *
+ * \return 0 if successful
+ */
+int camellia_crypt_ecb( camellia_context *ctx,
+ int mode,
+ const unsigned char input[16],
+ unsigned char output[16] );
+
+/**
+ * \brief CAMELLIA-CBC buffer encryption/decryption
+ * Length should be a multiple of the block
+ * size (16 bytes)
+ *
+ * \param ctx CAMELLIA context
+ * \param mode CAMELLIA_ENCRYPT or CAMELLIA_DECRYPT
+ * \param length length of the input data
+ * \param iv initialization vector (updated after use)
+ * \param input buffer holding the input data
+ * \param output buffer holding the output data
+ *
+ * \return 0 if successful, or POLARSSL_ERR_CAMELLIA_INVALID_INPUT_LENGTH
+ */
+int camellia_crypt_cbc( camellia_context *ctx,
+ int mode,
+ size_t length,
+ unsigned char iv[16],
+ const unsigned char *input,
+ unsigned char *output );
+
+/**
+ * \brief CAMELLIA-CFB128 buffer encryption/decryption
+ *
+ * Note: Due to the nature of CFB you should use the same key schedule for
+ * both encryption and decryption. So a context initialized with
+ * camellia_setkey_enc() for both CAMELLIA_ENCRYPT and CAMELLIE_DECRYPT.
+ *
+ * \param ctx CAMELLIA context
+ * \param mode CAMELLIA_ENCRYPT or CAMELLIA_DECRYPT
+ * \param length length of the input data
+ * \param iv_off offset in IV (updated after use)
+ * \param iv initialization vector (updated after use)
+ * \param input buffer holding the input data
+ * \param output buffer holding the output data
+ *
+ * \return 0 if successful, or POLARSSL_ERR_CAMELLIA_INVALID_INPUT_LENGTH
+ */
+int camellia_crypt_cfb128( camellia_context *ctx,
+ int mode,
+ size_t length,
+ size_t *iv_off,
+ unsigned char iv[16],
+ const unsigned char *input,
+ unsigned char *output );
+
+/*
+ * \brief CAMELLIA-CTR buffer encryption/decryption
+ *
+ * Warning: You have to keep the maximum use of your counter in mind!
+ *
+ * Note: Due to the nature of CTR you should use the same key schedule for
+ * both encryption and decryption. So a context initialized with
+ * camellia_setkey_enc() for both CAMELLIA_ENCRYPT and CAMELLIA_DECRYPT.
+ *
+ * \param length The length of the data
+ * \param nc_off The offset in the current stream_block (for resuming
+ * within current cipher stream). The offset pointer to
+ * should be 0 at the start of a stream.
+ * \param nonce_counter The 128-bit nonce and counter.
+ * \param stream_block The saved stream-block for resuming. Is overwritten
+ * by the function.
+ * \param input The input data stream
+ * \param output The output data stream
+ *
+ * \return 0 if successful
+ */
+int camellia_crypt_ctr( camellia_context *ctx,
+ size_t length,
+ size_t *nc_off,
+ unsigned char nonce_counter[16],
+ unsigned char stream_block[16],
+ const unsigned char *input,
+ unsigned char *output );
+
+/**
+ * \brief Checkup routine
+ *
+ * \return 0 if successful, or 1 if the test failed
+ */
+int camellia_self_test( int verbose );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* camellia.h */
--- /dev/null
+/**
+ * \file certs.h
+ *
+ * \brief Sample certificates and DHM parameters for testing
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#ifndef POLARSSL_CERTS_H
+#define POLARSSL_CERTS_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern const char test_ca_crt[];
+extern const char test_ca_key[];
+extern const char test_ca_pwd[];
+extern const char test_srv_crt[];
+extern const char test_srv_key[];
+extern const char test_cli_crt[];
+extern const char test_cli_key[];
+extern const char test_dhm_params[];
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* certs.h */
--- /dev/null
+/**
+ * \file cipher.h
+ *
+ * \brief Generic cipher wrapper.
+ *
+ * \author Adriaan de Jong <dejong@fox-it.com>
+ *
+ * Copyright (C) 2006-2011, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef POLARSSL_CIPHER_H
+#define POLARSSL_CIPHER_H
+
+#include <string.h>
+
+#if defined(_MSC_VER) && !defined(inline)
+#define inline _inline
+#else
+#if defined(__ARMCC_VERSION) && !defined(inline)
+#define inline __inline
+#endif /* __ARMCC_VERSION */
+#endif /*_MSC_VER */
+
+#define POLARSSL_ERR_CIPHER_FEATURE_UNAVAILABLE -0x6080 /**< The selected feature is not available. */
+#define POLARSSL_ERR_CIPHER_BAD_INPUT_DATA -0x6100 /**< Bad input parameters to function. */
+#define POLARSSL_ERR_CIPHER_ALLOC_FAILED -0x6180 /**< Failed to allocate memory. */
+#define POLARSSL_ERR_CIPHER_INVALID_PADDING -0x6200 /**< Input data contains invalid padding and is rejected. */
+#define POLARSSL_ERR_CIPHER_FULL_BLOCK_EXPECTED -0x6280 /**< Decryption of block requires a full block. */
+
+typedef enum {
+ POLARSSL_CIPHER_ID_NONE = 0,
+ POLARSSL_CIPHER_ID_AES,
+ POLARSSL_CIPHER_ID_DES,
+ POLARSSL_CIPHER_ID_3DES,
+ POLARSSL_CIPHER_ID_CAMELLIA,
+} cipher_id_t;
+
+typedef enum {
+ POLARSSL_CIPHER_NONE = 0,
+ POLARSSL_CIPHER_AES_128_CBC,
+ POLARSSL_CIPHER_AES_192_CBC,
+ POLARSSL_CIPHER_AES_256_CBC,
+ POLARSSL_CIPHER_AES_128_CFB128,
+ POLARSSL_CIPHER_AES_192_CFB128,
+ POLARSSL_CIPHER_AES_256_CFB128,
+ POLARSSL_CIPHER_AES_128_CTR,
+ POLARSSL_CIPHER_AES_192_CTR,
+ POLARSSL_CIPHER_AES_256_CTR,
+ POLARSSL_CIPHER_CAMELLIA_128_CBC,
+ POLARSSL_CIPHER_CAMELLIA_192_CBC,
+ POLARSSL_CIPHER_CAMELLIA_256_CBC,
+ POLARSSL_CIPHER_CAMELLIA_128_CFB128,
+ POLARSSL_CIPHER_CAMELLIA_192_CFB128,
+ POLARSSL_CIPHER_CAMELLIA_256_CFB128,
+ POLARSSL_CIPHER_CAMELLIA_128_CTR,
+ POLARSSL_CIPHER_CAMELLIA_192_CTR,
+ POLARSSL_CIPHER_CAMELLIA_256_CTR,
+ POLARSSL_CIPHER_DES_CBC,
+ POLARSSL_CIPHER_DES_EDE_CBC,
+ POLARSSL_CIPHER_DES_EDE3_CBC
+} cipher_type_t;
+
+typedef enum {
+ POLARSSL_MODE_NONE = 0,
+ POLARSSL_MODE_CBC,
+ POLARSSL_MODE_CFB128,
+ POLARSSL_MODE_OFB,
+ POLARSSL_MODE_CTR,
+} cipher_mode_t;
+
+typedef enum {
+ POLARSSL_OPERATION_NONE = -1,
+ POLARSSL_DECRYPT = 0,
+ POLARSSL_ENCRYPT,
+} operation_t;
+
+enum {
+ /** Undefined key length */
+ POLARSSL_KEY_LENGTH_NONE = 0,
+ /** Key length, in bits (including parity), for DES keys */
+ POLARSSL_KEY_LENGTH_DES = 64,
+ /** Key length, in bits (including parity), for DES in two key EDE */
+ POLARSSL_KEY_LENGTH_DES_EDE = 128,
+ /** Key length, in bits (including parity), for DES in three-key EDE */
+ POLARSSL_KEY_LENGTH_DES_EDE3 = 192,
+ /** Maximum length of any IV, in bytes */
+ POLARSSL_MAX_IV_LENGTH = 16,
+};
+
+/**
+ * Base cipher information. The non-mode specific functions and values.
+ */
+typedef struct {
+
+ /** Base Cipher type (e.g. POLARSSL_CIPHER_ID_AES) */
+ cipher_id_t cipher;
+
+ /** Encrypt using CBC */
+ int (*cbc_func)( void *ctx, operation_t mode, size_t length, unsigned char *iv,
+ const unsigned char *input, unsigned char *output );
+
+ /** Encrypt using CFB128 */
+ int (*cfb128_func)( void *ctx, operation_t mode, size_t length, size_t *iv_off,
+ unsigned char *iv, const unsigned char *input, unsigned char *output );
+
+ /** Encrypt using CTR */
+ int (*ctr_func)( void *ctx, size_t length, size_t *nc_off, unsigned char *nonce_counter,
+ unsigned char *stream_block, const unsigned char *input, unsigned char *output );
+
+ /** Set key for encryption purposes */
+ int (*setkey_enc_func)( void *ctx, const unsigned char *key, unsigned int key_length);
+
+ /** Set key for decryption purposes */
+ int (*setkey_dec_func)( void *ctx, const unsigned char *key, unsigned int key_length);
+
+ /** Allocate a new context */
+ void * (*ctx_alloc_func)( void );
+
+ /** Free the given context */
+ void (*ctx_free_func)( void *ctx );
+
+} cipher_base_t;
+
+/**
+ * Cipher information. Allows cipher functions to be called in a generic way.
+ */
+typedef struct {
+ /** Full cipher identifier (e.g. POLARSSL_CIPHER_AES_256_CBC) */
+ cipher_type_t type;
+
+ /** Cipher mode (e.g. POLARSSL_MODE_CBC) */
+ cipher_mode_t mode;
+
+ /** Cipher key length, in bits (default length for variable sized ciphers)
+ * (Includes parity bits for ciphers like DES) */
+ unsigned int key_length;
+
+ /** Name of the cipher */
+ const char * name;
+
+ /** IV size, in bytes */
+ unsigned int iv_size;
+
+ /** block size, in bytes */
+ unsigned int block_size;
+
+ /** Base cipher information and functions */
+ const cipher_base_t *base;
+
+} cipher_info_t;
+
+/**
+ * Generic cipher context.
+ */
+typedef struct {
+ /** Information about the associated cipher */
+ const cipher_info_t *cipher_info;
+
+ /** Key length to use */
+ int key_length;
+
+ /** Operation that the context's key has been initialised for */
+ operation_t operation;
+
+ /** Buffer for data that hasn't been encrypted yet */
+ unsigned char unprocessed_data[POLARSSL_MAX_IV_LENGTH];
+
+ /** Number of bytes that still need processing */
+ size_t unprocessed_len;
+
+ /** Current IV or NONCE_COUNTER for CTR-mode */
+ unsigned char iv[POLARSSL_MAX_IV_LENGTH];
+
+ /** Cipher-specific context */
+ void *cipher_ctx;
+} cipher_context_t;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief Returns the list of ciphers supported by the generic cipher module.
+ *
+ * \return a statically allocated array of ciphers, the last entry
+ * is 0.
+ */
+const int *cipher_list( void );
+
+/**
+ * \brief Returns the cipher information structure associated
+ * with the given cipher name.
+ *
+ * \param cipher_name Name of the cipher to search for.
+ *
+ * \return the cipher information structure associated with the
+ * given cipher_name, or NULL if not found.
+ */
+const cipher_info_t *cipher_info_from_string( const char *cipher_name );
+
+/**
+ * \brief Returns the cipher information structure associated
+ * with the given cipher type.
+ *
+ * \param cipher_type Type of the cipher to search for.
+ *
+ * \return the cipher information structure associated with the
+ * given cipher_type, or NULL if not found.
+ */
+const cipher_info_t *cipher_info_from_type( const cipher_type_t cipher_type );
+
+/**
+ * \brief Initialises and fills the cipher context structure with
+ * the appropriate values.
+ *
+ * \param ctx context to initialise. May not be NULL.
+ * \param cipher_info cipher to use.
+ *
+ * \return \c 0 on success,
+ * \c POLARSSL_ERR_CIPHER_BAD_INPUT_DATA on parameter failure,
+ * \c POLARSSL_ERR_CIPHER_ALLOC_FAILED if allocation of the
+ * cipher-specific context failed.
+ */
+int cipher_init_ctx( cipher_context_t *ctx, const cipher_info_t *cipher_info );
+
+/**
+ * \brief Free the cipher-specific context of ctx. Freeing ctx
+ * itself remains the responsibility of the caller.
+ *
+ * \param ctx Free the cipher-specific context
+ *
+ * \returns 0 on success, POLARSSL_ERR_CIPHER_BAD_INPUT_DATA if
+ * parameter verification fails.
+ */
+int cipher_free_ctx( cipher_context_t *ctx );
+
+/**
+ * \brief Returns the block size of the given cipher.
+ *
+ * \param ctx cipher's context. Must have been initialised.
+ *
+ * \return size of the cipher's blocks, or 0 if ctx has not been
+ * initialised.
+ */
+static inline unsigned int cipher_get_block_size( const cipher_context_t *ctx )
+{
+ if( NULL == ctx || NULL == ctx->cipher_info )
+ return 0;
+
+ return ctx->cipher_info->block_size;
+}
+
+/**
+ * \brief Returns the mode of operation for the cipher.
+ * (e.g. POLARSSL_MODE_CBC)
+ *
+ * \param ctx cipher's context. Must have been initialised.
+ *
+ * \return mode of operation, or POLARSSL_MODE_NONE if ctx
+ * has not been initialised.
+ */
+static inline cipher_mode_t cipher_get_cipher_mode( const cipher_context_t *ctx )
+{
+ if( NULL == ctx || NULL == ctx->cipher_info )
+ return POLARSSL_MODE_NONE;
+
+ return ctx->cipher_info->mode;
+}
+
+/**
+ * \brief Returns the size of the cipher's IV.
+ *
+ * \param ctx cipher's context. Must have been initialised.
+ *
+ * \return size of the cipher's IV, or 0 if ctx has not been
+ * initialised.
+ */
+static inline int cipher_get_iv_size( const cipher_context_t *ctx )
+{
+ if( NULL == ctx || NULL == ctx->cipher_info )
+ return 0;
+
+ return ctx->cipher_info->iv_size;
+}
+
+/**
+ * \brief Returns the type of the given cipher.
+ *
+ * \param ctx cipher's context. Must have been initialised.
+ *
+ * \return type of the cipher, or POLARSSL_CIPHER_NONE if ctx has
+ * not been initialised.
+ */
+static inline cipher_type_t cipher_get_type( const cipher_context_t *ctx )
+{
+ if( NULL == ctx || NULL == ctx->cipher_info )
+ return 0;
+
+ return ctx->cipher_info->type;
+}
+
+/**
+ * \brief Returns the name of the given cipher, as a string.
+ *
+ * \param ctx cipher's context. Must have been initialised.
+ *
+ * \return name of the cipher, or NULL if ctx was not initialised.
+ */
+static inline const char *cipher_get_name( const cipher_context_t *ctx )
+{
+ if( NULL == ctx || NULL == ctx->cipher_info )
+ return 0;
+
+ return ctx->cipher_info->name;
+}
+
+/**
+ * \brief Returns the key length of the cipher.
+ *
+ * \param ctx cipher's context. Must have been initialised.
+ *
+ * \return cipher's key length, in bits, or
+ * POLARSSL_KEY_LENGTH_NONE if ctx has not been
+ * initialised.
+ */
+static inline int cipher_get_key_size ( const cipher_context_t *ctx )
+{
+ if( NULL == ctx )
+ return POLARSSL_KEY_LENGTH_NONE;
+
+ return ctx->key_length;
+}
+
+/**
+ * \brief Returns the operation of the given cipher.
+ *
+ * \param ctx cipher's context. Must have been initialised.
+ *
+ * \return operation (POLARSSL_ENCRYPT or POLARSSL_DECRYPT),
+ * or POLARSSL_OPERATION_NONE if ctx has not been
+ * initialised.
+ */
+static inline operation_t cipher_get_operation( const cipher_context_t *ctx )
+{
+ if( NULL == ctx || NULL == ctx->cipher_info )
+ return POLARSSL_OPERATION_NONE;
+
+ return ctx->operation;
+}
+
+/**
+ * \brief Set the key to use with the given context.
+ *
+ * \param ctx generic cipher context. May not be NULL. Must have been
+ * initialised using cipher_context_from_type or
+ * cipher_context_from_string.
+ * \param key The key to use.
+ * \param key_length key length to use, in bits.
+ * \param operation Operation that the key will be used for, either
+ * POLARSSL_ENCRYPT or POLARSSL_DECRYPT.
+ *
+ * \returns 0 on success, POLARSSL_ERR_CIPHER_BAD_INPUT_DATA if
+ * parameter verification fails or a cipher specific
+ * error code.
+ */
+int cipher_setkey( cipher_context_t *ctx, const unsigned char *key, int key_length,
+ const operation_t operation );
+
+/**
+ * \brief Reset the given context, setting the IV to iv
+ *
+ * \param ctx generic cipher context
+ * \param iv IV to use or NONCE_COUNTER in the case of a CTR-mode cipher
+ *
+ * \returns 0 on success, POLARSSL_ERR_CIPHER_BAD_INPUT_DATA
+ * if parameter verification fails.
+ */
+int cipher_reset( cipher_context_t *ctx, const unsigned char *iv );
+
+/**
+ * \brief Generic cipher update function. Encrypts/decrypts
+ * using the given cipher context. Writes as many block
+ * size'd blocks of data as possible to output. Any data
+ * that cannot be written immediately will either be added
+ * to the next block, or flushed when cipher_final is
+ * called.
+ *
+ * \param ctx generic cipher context
+ * \param input buffer holding the input data
+ * \param ilen length of the input data
+ * \param output buffer for the output data. Should be able to hold at
+ * least ilen + block_size. Cannot be the same buffer as
+ * input!
+ * \param olen length of the output data, will be filled with the
+ * actual number of bytes written.
+ *
+ * \returns 0 on success, POLARSSL_ERR_CIPHER_BAD_INPUT_DATA if
+ * parameter verification fails,
+ * POLARSSL_ERR_CIPHER_FEATURE_UNAVAILABLE on an
+ * unsupported mode for a cipher or a cipher specific
+ * error code.
+ */
+int cipher_update( cipher_context_t *ctx, const unsigned char *input, size_t ilen,
+ unsigned char *output, size_t *olen );
+
+/**
+ * \brief Generic cipher finalisation function. If data still
+ * needs to be flushed from an incomplete block, data
+ * contained within it will be padded with the size of
+ * the last block, and written to the output buffer.
+ *
+ * \param ctx Generic cipher context
+ * \param output buffer to write data to. Needs block_size data available.
+ * \param olen length of the data written to the output buffer.
+ *
+ * \returns 0 on success, POLARSSL_ERR_CIPHER_BAD_INPUT_DATA if
+ * parameter verification fails,
+ * POLARSSL_ERR_CIPHER_FULL_BLOCK_EXPECTED if decryption
+ * expected a full block but was not provided one,
+ * POLARSSL_ERR_CIPHER_INVALID_PADDING on invalid padding
+ * while decrypting or a cipher specific error code.
+ */
+int cipher_finish( cipher_context_t *ctx, unsigned char *output, size_t *olen);
+
+
+/**
+ * \brief Checkup routine
+ *
+ * \return 0 if successful, or 1 if the test failed
+ */
+int cipher_self_test( int verbose );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* POLARSSL_MD_H */
--- /dev/null
+/**
+ * \file cipher_wrap.h
+ *
+ * \brief Cipher wrappers.
+ *
+ * \author Adriaan de Jong <dejong@fox-it.com>
+ *
+ * Copyright (C) 2006-2011, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#ifndef POLARSSL_CIPHER_WRAP_H
+#define POLARSSL_CIPHER_WRAP_H
+
+#include "config.h"
+#include "cipher.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if defined(POLARSSL_AES_C)
+
+extern const cipher_info_t aes_128_cbc_info;
+extern const cipher_info_t aes_192_cbc_info;
+extern const cipher_info_t aes_256_cbc_info;
+
+#if defined(POLARSSL_CIPHER_MODE_CFB)
+extern const cipher_info_t aes_128_cfb128_info;
+extern const cipher_info_t aes_192_cfb128_info;
+extern const cipher_info_t aes_256_cfb128_info;
+#endif /* POLARSSL_CIPHER_MODE_CFB */
+
+#if defined(POLARSSL_CIPHER_MODE_CTR)
+extern const cipher_info_t aes_128_ctr_info;
+extern const cipher_info_t aes_192_ctr_info;
+extern const cipher_info_t aes_256_ctr_info;
+#endif /* POLARSSL_CIPHER_MODE_CTR */
+
+#endif /* defined(POLARSSL_AES_C) */
+
+#if defined(POLARSSL_CAMELLIA_C)
+
+extern const cipher_info_t camellia_128_cbc_info;
+extern const cipher_info_t camellia_192_cbc_info;
+extern const cipher_info_t camellia_256_cbc_info;
+
+#if defined(POLARSSL_CIPHER_MODE_CFB)
+extern const cipher_info_t camellia_128_cfb128_info;
+extern const cipher_info_t camellia_192_cfb128_info;
+extern const cipher_info_t camellia_256_cfb128_info;
+#endif /* POLARSSL_CIPHER_MODE_CFB */
+
+#if defined(POLARSSL_CIPHER_MODE_CTR)
+extern const cipher_info_t camellia_128_ctr_info;
+extern const cipher_info_t camellia_192_ctr_info;
+extern const cipher_info_t camellia_256_ctr_info;
+#endif /* POLARSSL_CIPHER_MODE_CTR */
+
+#endif /* defined(POLARSSL_CAMELLIA_C) */
+
+#if defined(POLARSSL_DES_C)
+
+extern const cipher_info_t des_cbc_info;
+extern const cipher_info_t des_ede_cbc_info;
+extern const cipher_info_t des_ede3_cbc_info;
+
+#endif /* defined(POLARSSL_DES_C) */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* POLARSSL_CIPHER_WRAP_H */
--- /dev/null
+/**
+ * \file config.h
+ *
+ * \brief Configuration options (set of defines)
+ *
+ * Copyright (C) 2006-2011, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * This set of compile-time options may be used to enable
+ * or disable features selectively, and reduce the global
+ * memory footprint.
+ */
+#ifndef POLARSSL_CONFIG_H
+#define POLARSSL_CONFIG_H
+
+#if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_DEPRECATE)
+#define _CRT_SECURE_NO_DEPRECATE 1
+#endif
+
+/**
+ * \name SECTION: System support
+ *
+ * This section sets system specific settings.
+ * \{
+ */
+
+/**
+ * \def POLARSSL_HAVE_INT8
+ *
+ * The system uses 8-bit wide native integers.
+ *
+ * Uncomment if native integers are 8-bit wide.
+#define POLARSSL_HAVE_INT8
+ */
+
+/**
+ * \def POLARSSL_HAVE_INT16
+ *
+ * The system uses 16-bit wide native integers.
+ *
+ * Uncomment if native integers are 16-bit wide.
+#define POLARSSL_HAVE_INT16
+ */
+
+/**
+ * \def POLARSSL_HAVE_LONGLONG
+ *
+ * The compiler supports the use of long long.
+ *
+ * Uncomment if the compiler supports long long.
+#define POLARSSL_HAVE_LONGLONG
+ */
+
+/**
+ * \def POLARSSL_HAVE_ASM
+ *
+ * The compiler has support for asm()
+ *
+ * Uncomment to enable the use of assembly code.
+ *
+ * Requires support for asm() in compiler.
+ *
+ * Used in:
+ * library/timing.c
+ * library/padlock.c
+ * include/polarssl/bn_mul.h
+ *
+ */
+#define POLARSSL_HAVE_ASM
+
+/**
+ * \def POLARSSL_HAVE_SSE2
+ *
+ * CPI supports SSE2 instruction set.
+ *
+ * Uncomment if the CPU supports SSE2 (IA-32 specific).
+ *
+#define POLARSSL_HAVE_SSE2
+ */
+/* \} name */
+
+/**
+ * \name SECTION: PolarSSL feature support
+ *
+ * This section sets support for features that are or are not needed
+ * within the modules that are enabled.
+ * \{
+ */
+
+/**
+ * \def POLARSSL_AES_ROM_TABLES
+ *
+ * Store the AES tables in ROM.
+ *
+ * Uncomment this macro to store the AES tables in ROM.
+ *
+#define POLARSSL_AES_ROM_TABLES
+ */
+
+/**
+ * \def POLARSSL_CIPHER_MODE_CFB
+ *
+ * Enable Cipher Feedback mode (CFB) for symmetric ciphers.
+ */
+#define POLARSSL_CIPHER_MODE_CFB
+
+/**
+ * \def POLARSSL_CIPHER_MODE_CTR
+ *
+ * Enable Counter Block Cipher mode (CTR) for symmetric ciphers.
+ */
+#define POLARSSL_CIPHER_MODE_CTR
+
+/**
+ * \def POLARSSL_DEBUG_MSG
+ *
+ * Requires: POLARSSL_DEBUG_C
+ *
+ * Enable all SSL/TLS debugging messages.
+ */
+#define POLARSSL_DEBUG_MSG
+
+/**
+ * \def POLARSSL_GENPRIME
+ *
+ * Requires: POLARSSL_BIGNUM_C, POLARSSL_RSA_C
+ *
+ * Enable the RSA prime-number generation code.
+ */
+#define POLARSSL_GENPRIME
+
+/**
+ * \def POLARSSL_FS_IO
+ *
+ * Enable functions that use the filesystem.
+ */
+#define POLARSSL_FS_IO
+
+/**
+ * \def POLARSSL_NO_DEFAULT_ENTROPY_SOURCES
+ *
+ * Do not add default entropy sources. These are the platform specific,
+ * hardclock and HAVEGE based poll functions.
+ *
+ * This is useful to have more control over the added entropy sources in an
+ * application.
+ *
+ * Uncomment this macro to prevent loading of default entropy functions.
+#define POLARSSL_NO_DEFAULT_ENTROPY_SOURCES
+ */
+
+/**
+ * \def POLARSSL_NO_PLATFORM_ENTROPY
+ *
+ * Do not use built-in platform entropy functions.
+ * This is useful if your platform does not support
+ * standards like the /dev/urandom or Windows CryptoAPI.
+ *
+ * Uncomment this macro to disable the built-in platform entropy functions.
+#define POLARSSL_NO_PLATFORM_ENTROPY
+ */
+
+/**
+ * \def POLARSSL_PKCS1_V21
+ *
+ * Requires: POLARSSL_MD_C, POLARSSL_RSA_C
+ *
+ * Enable support for PKCS#1 v2.1 encoding.
+ * This enables support for RSAES-OAEP and RSASSA-PSS operations.
+ */
+#define POLARSSL_PKCS1_V21
+
+/**
+ * \def POLARSSL_RSA_NO_CRT
+ *
+ * Do not use the Chinese Remainder Theorem for the RSA private operation.
+ *
+ * Uncomment this macro to disable the use of CRT in RSA.
+ *
+#define POLARSSL_RSA_NO_CRT
+ */
+
+/**
+ * \def POLARSSL_SELF_TEST
+ *
+ * Enable the checkup functions (*_self_test).
+ */
+#define POLARSSL_SELF_TEST
+
+/**
+ * \def POLARSSL_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION
+ *
+ * If set, the X509 parser will not break-off when parsing an X509 certificate
+ * and encountering an unknown critical extension.
+ *
+ * Uncomment to prevent an error.
+ *
+#define POLARSSL_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION
+ */
+/* \} name */
+
+/**
+ * \name SECTION: PolarSSL modules
+ *
+ * This section enables or disables entire modules in PolarSSL
+ * \{
+ */
+
+/**
+ * \def POLARSSL_AES_C
+ *
+ * Enable the AES block cipher.
+ *
+ * Module: library/aes.c
+ * Caller: library/ssl_tls.c
+ * library/pem.c
+ * library/ctr_drbg.c
+ *
+ * This module enables the following ciphersuites:
+ * SSL_RSA_AES_128_SHA
+ * SSL_RSA_AES_256_SHA
+ * SSL_EDH_RSA_AES_256_SHA
+ */
+#define POLARSSL_AES_C
+
+/**
+ * \def POLARSSL_ARC4_C
+ *
+ * Enable the ARCFOUR stream cipher.
+ *
+ * Module: library/arc4.c
+ * Caller: library/ssl_tls.c
+ *
+ * This module enables the following ciphersuites:
+ * SSL_RSA_RC4_128_MD5
+ * SSL_RSA_RC4_128_SHA
+ */
+#define POLARSSL_ARC4_C
+
+/**
+ * \def POLARSSL_ASN1_PARSE_C
+ *
+ * Enable the generic ASN1 parser.
+ *
+ * Module: library/asn1.c
+ * Caller: library/x509parse.c
+ */
+#define POLARSSL_ASN1_PARSE_C
+
+/**
+ * \def POLARSSL_BASE64_C
+ *
+ * Enable the Base64 module.
+ *
+ * Module: library/base64.c
+ * Caller: library/pem.c
+ *
+ * This module is required for PEM support (required by X.509).
+ */
+#define POLARSSL_BASE64_C
+
+/**
+ * \def POLARSSL_BIGNUM_C
+ *
+ * Enable the multo-precision integer library.
+ *
+ * Module: library/bignum.c
+ * Caller: library/dhm.c
+ * library/rsa.c
+ * library/ssl_tls.c
+ * library/x509parse.c
+ *
+ * This module is required for RSA and DHM support.
+ */
+#define POLARSSL_BIGNUM_C
+
+/**
+ * \def POLARSSL_CAMELLIA_C
+ *
+ * Enable the Camellia block cipher.
+ *
+ * Module: library/camellia.c
+ * Caller: library/ssl_tls.c
+ *
+ * This module enabled the following cipher suites:
+ * SSL_RSA_CAMELLIA_128_SHA
+ * SSL_RSA_CAMELLIA_256_SHA
+ * SSL_EDH_RSA_CAMELLIA_256_SHA
+ */
+#define POLARSSL_CAMELLIA_C
+
+/**
+ * \def POLARSSL_CERTS_C
+ *
+ * Enable the test certificates.
+ *
+ * Module: library/certs.c
+ * Caller:
+ *
+ * This module is used for testing (ssl_client/server).
+ */
+#define POLARSSL_CERTS_C
+
+/**
+ * \def POLARSSL_CIPHER_C
+ *
+ * Enable the generic cipher layer.
+ *
+ * Module: library/cipher.c
+ * Caller:
+ *
+ * Uncomment to enable generic cipher wrappers.
+ */
+#define POLARSSL_CIPHER_C
+
+/**
+ * \def POLARSSL_CTR_DRBG_C
+ *
+ * Enable the CTR_DRBG AES-256-based random generator
+ *
+ * Module: library/ctr_drbg.c
+ * Caller:
+ *
+ * Requires: POLARSSL_AES_C
+ *
+ * This module provides the CTR_DRBG AES-256 random number generator.
+ */
+#define POLARSSL_CTR_DRBG_C
+
+/**
+ * \def POLARSSL_DEBUG_C
+ *
+ * Enable the debug functions.
+ *
+ * Module: library/debug.c
+ * Caller: library/ssl_cli.c
+ * library/ssl_srv.c
+ * library/ssl_tls.c
+ *
+ * This module provides debugging functions.
+ */
+#define POLARSSL_DEBUG_C
+
+/**
+ * \def POLARSSL_DES_C
+ *
+ * Enable the DES block cipher.
+ *
+ * Module: library/des.c
+ * Caller: library/ssl_tls.c
+ *
+ * This module enables the following ciphersuites:
+ * SSL_RSA_DES_168_SHA
+ * SSL_EDH_RSA_DES_168_SHA
+ */
+#define POLARSSL_DES_C
+
+/**
+ * \def POLARSSL_DHM_C
+ *
+ * Enable the Diffie-Hellman-Merkle key exchange.
+ *
+ * Module: library/dhm.c
+ * Caller: library/ssl_cli.c
+ * library/ssl_srv.c
+ *
+ * This module enables the following ciphersuites:
+ * SSL_EDH_RSA_DES_168_SHA
+ * SSL_EDH_RSA_AES_256_SHA
+ * SSL_EDH_RSA_CAMELLIA_256_SHA
+ */
+#define POLARSSL_DHM_C
+
+/**
+ * \def POLARSSL_ENTROPY_C
+ *
+ * Enable the platform-specific entropy code.
+ *
+ * Module: library/entropy.c
+ * Caller:
+ *
+ * Requires: POLARSSL_SHA4_C
+ *
+ * This module provides a generic entropy pool
+ */
+#define POLARSSL_ENTROPY_C
+
+/**
+ * \def POLARSSL_ERROR_C
+ *
+ * Enable error code to error string conversion.
+ *
+ * Module: library/error.c
+ * Caller:
+ *
+ * This module enables err_strerror().
+ */
+#define POLARSSL_ERROR_C
+
+/**
+ * \def POLARSSL_HAVEGE_C
+ *
+ * Enable the HAVEGE random generator.
+ *
+ * Module: library/havege.c
+ * Caller:
+ *
+ * Requires: POLARSSL_TIMING_C
+ *
+ * This module enables the HAVEGE random number generator.
+ */
+#define POLARSSL_HAVEGE_C
+
+/**
+ * \def POLARSSL_MD_C
+ *
+ * Enable the generic message digest layer.
+ *
+ * Module: library/md.c
+ * Caller:
+ *
+ * Uncomment to enable generic message digest wrappers.
+ */
+#define POLARSSL_MD_C
+
+/**
+ * \def POLARSSL_MD2_C
+ *
+ * Enable the MD2 hash algorithm
+ *
+ * Module: library/md2.c
+ * Caller: library/x509parse.c
+ *
+ * Uncomment to enable support for (rare) MD2-signed X.509 certs.
+ *
+#define POLARSSL_MD2_C
+ */
+
+/**
+ * \def POLARSSL_MD4_C
+ *
+ * Enable the MD4 hash algorithm
+ *
+ * Module: library/md4.c
+ * Caller: library/x509parse.c
+ *
+ * Uncomment to enable support for (rare) MD4-signed X.509 certs.
+ *
+#define POLARSSL_MD4_C
+ */
+
+/**
+ * \def POLARSSL_MD5_C
+ *
+ * Enable the MD5 hash algorithm
+ *
+ * Module: library/md5.c
+ * Caller: library/ssl_tls.c
+ * library/x509parse.c
+ *
+ * This module is required for SSL/TLS and X.509.
+ */
+#define POLARSSL_MD5_C
+
+/**
+ * \def POLARSSL_NET_C
+ *
+ * Enable the TCP/IP networking routines.
+ *
+ * Module: library/net.c
+ * Caller:
+ *
+ * This module provides TCP/IP networking routines.
+ */
+#define POLARSSL_NET_C
+
+/**
+ * \def POLARSSL_PADLOCK_C
+ *
+ * Enable VIA Padlock support on x86.
+ *
+ * Module: library/padlock.c
+ * Caller: library/aes.c
+ *
+ * This modules adds support for the VIA PadLock on x86.
+ */
+#define POLARSSL_PADLOCK_C
+
+/**
+ * \def POLARSSL_PEM_C
+ *
+ * Enable PEM decoding
+ *
+ * Module: library/pem.c
+ * Caller: library/x509parse.c
+ *
+ * Requires: POLARSSL_BASE64_C
+ *
+ * This modules adds support for decoding PEM files.
+ */
+#define POLARSSL_PEM_C
+
+/**
+ * \def POLARSSL_PKCS11_C
+ *
+ * Enable support for PKCS#11 smartcard support.
+ *
+ * Module: library/ssl_srv.c
+ * Caller: library/ssl_cli.c
+ * library/ssl_srv.c
+ *
+ * Requires: POLARSSL_SSL_TLS_C
+ *
+ * This module is required for SSL/TLS PKCS #11 smartcard support.
+ * Requires the presence of the PKCS#11 helper library (libpkcs11-helper)
+#define POLARSSL_PKCS11_C
+ */
+
+/**
+ * \def POLARSSL_RSA_C
+ *
+ * Enable the RSA public-key cryptosystem.
+ *
+ * Module: library/rsa.c
+ * Caller: library/ssl_cli.c
+ * library/ssl_srv.c
+ * library/ssl_tls.c
+ * library/x509.c
+ *
+ * Requires: POLARSSL_BIGNUM_C
+ *
+ * This module is required for SSL/TLS and MD5-signed certificates.
+ */
+#define POLARSSL_RSA_C
+
+/**
+ * \def POLARSSL_SHA1_C
+ *
+ * Enable the SHA1 cryptographic hash algorithm.
+ *
+ * Module: library/sha1.c
+ * Caller: library/ssl_cli.c
+ * library/ssl_srv.c
+ * library/ssl_tls.c
+ * library/x509parse.c
+ *
+ * This module is required for SSL/TLS and SHA1-signed certificates.
+ */
+#define POLARSSL_SHA1_C
+
+/**
+ * \def POLARSSL_SHA2_C
+ *
+ * Enable the SHA-224 and SHA-256 cryptographic hash algorithms.
+ *
+ * Module: library/sha2.c
+ * Caller: library/md_wrap.c
+ * library/x509parse.c
+ *
+ * This module adds support for SHA-224 and SHA-256.
+ */
+#define POLARSSL_SHA2_C
+
+/**
+ * \def POLARSSL_SHA4_C
+ *
+ * Enable the SHA-384 and SHA-512 cryptographic hash algorithms.
+ *
+ * Module: library/sha4.c
+ * Caller: library/md_wrap.c
+ * library/x509parse.c
+ *
+ * This module adds support for SHA-384 and SHA-512.
+ */
+#define POLARSSL_SHA4_C
+
+/**
+ * \def POLARSSL_SSL_CLI_C
+ *
+ * Enable the SSL/TLS client code.
+ *
+ * Module: library/ssl_cli.c
+ * Caller:
+ *
+ * Requires: POLARSSL_SSL_TLS_C
+ *
+ * This module is required for SSL/TLS client support.
+ */
+#define POLARSSL_SSL_CLI_C
+
+/*
+ * \def POLARSSL_SSL_SRV_C
+ *
+ * Enable the SSL/TLS server code.
+ *
+ * Module: library/ssl_srv.c
+ * Caller:
+ *
+ * Requires: POLARSSL_SSL_TLS_C
+ *
+ * This module is required for SSL/TLS server support.
+ */
+#define POLARSSL_SSL_SRV_C
+
+/**
+ * \def POLARSSL_SSL_TLS_C
+ *
+ * Enable the generic SSL/TLS code.
+ *
+ * Module: library/ssl_tls.c
+ * Caller: library/ssl_cli.c
+ * library/ssl_srv.c
+ *
+ * Requires: POLARSSL_MD5_C, POLARSSL_SHA1_C, POLARSSL_X509_PARSE_C
+ *
+ * This module is required for SSL/TLS.
+ */
+#define POLARSSL_SSL_TLS_C
+
+/**
+ * \def POLARSSL_TIMING_C
+ *
+ * Enable the portable timing interface.
+ *
+ * Module: library/timing.c
+ * Caller: library/havege.c
+ *
+ * This module is used by the HAVEGE random number generator.
+ */
+#define POLARSSL_TIMING_C
+
+/**
+ * \def POLARSSL_VERSION_C
+ *
+ * Enable run-time version information.
+ *
+ * Module: library/version.c
+ *
+ * This module provides run-time version information.
+ */
+#define POLARSSL_VERSION_C
+
+/**
+ * \def POLARSSL_X509_PARSE_C
+ *
+ * Enable X.509 certificate parsing.
+ *
+ * Module: library/x509parse.c
+ * Caller: library/ssl_cli.c
+ * library/ssl_srv.c
+ * library/ssl_tls.c
+ *
+ * Requires: POLARSSL_ASN1_PARSE_C, POLARSSL_BIGNUM_C, POLARSSL_RSA_C
+ *
+ * This module is required for X.509 certificate parsing.
+ */
+#define POLARSSL_X509_PARSE_C
+
+/**
+ * \def POLARSSL_XTEA_C
+ *
+ * Enable the XTEA block cipher.
+ *
+ * Module: library/xtea.c
+ * Caller:
+ */
+#define POLARSSL_XTEA_C
+/* \} name */
+
+#endif /* config.h */
--- /dev/null
+/**
+ * \file ctr_drbg.h
+ *
+ * \brief CTR_DRBG based on AES-256 (NIST SP 800-90)
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#ifndef POLARSSL_CTR_DRBG_H
+#define POLARSSL_CTR_DRBG_H
+
+#include <string.h>
+
+#include "aes.h"
+
+#define POLARSSL_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED -0x0034 /**< The entropy source failed. */
+#define POLARSSL_ERR_CTR_DRBG_REQUEST_TOO_BIG -0x0036 /**< Too many random requested in single call. */
+#define POLARSSL_ERR_CTR_DRBG_INPUT_TOO_BIG -0x0038 /**< Input too large (Entropy + additional). */
+#define POLARSSL_ERR_CTR_DRBG_FILE_IO_ERROR -0x003A /**< Read/write error in file. */
+
+#define CTR_DRBG_BLOCKSIZE 16 /**< Block size used by the cipher */
+#define CTR_DRBG_KEYSIZE 32 /**< Key size used by the cipher */
+#define CTR_DRBG_KEYBITS ( CTR_DRBG_KEYSIZE * 8 )
+#define CTR_DRBG_SEEDLEN ( CTR_DRBG_KEYSIZE + CTR_DRBG_BLOCKSIZE )
+ /**< The seed length (counter + AES key) */
+#define CTR_DRBG_ENTROPY_LEN 48 /**< Amount of entropy used per seed by default */
+#define CTR_DRBG_RESEED_INTERVAL 10000 /**< Interval before reseed is performed by default */
+#define CTR_DRBG_MAX_INPUT 256 /**< Maximum number of additional input bytes */
+#define CTR_DRBG_MAX_REQUEST 1024 /**< Maximum number of requested bytes per call */
+#define CTR_DRBG_MAX_SEED_INPUT 384 /**< Maximum size of (re)seed buffer */
+
+#define CTR_DRBG_PR_OFF 0 /**< No prediction resistance */
+#define CTR_DRBG_PR_ON 1 /**< Prediction resistance enabled */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief CTR_DRBG context structure
+ */
+typedef struct
+{
+ unsigned char counter[16]; /*!< counter (V) */
+ int reseed_counter; /*!< reseed counter */
+ int prediction_resistance; /*!< enable prediction resistance (Automatic
+ reseed before every random generation) */
+ size_t entropy_len; /*!< amount of entropy grabbed on each (re)seed */
+ int reseed_interval; /*!< reseed interval */
+
+ aes_context aes_ctx; /*!< AES context */
+
+ /*
+ * Callbacks (Entropy)
+ */
+ int (*f_entropy)(void *, unsigned char *, size_t);
+
+ void *p_entropy; /*!< context for the entropy function */
+}
+ctr_drbg_context;
+
+/**
+ * \brief CTR_DRBG initialization
+ *
+ * Note: Personalization data can be provided in addition to the more generic
+ * entropy source to make this instantiation as unique as possible.
+ *
+ * \param ctx CTR_DRBG context to be initialized
+ * \param f_entropy Entropy callback (p_entropy, buffer to fill, buffer
+ * length)
+ * \param p_entropy Entropy context
+ * \param custom Personalization data (Device specific identifiers)
+ * (Can be NULL)
+ * \param len Length of personalization data
+ *
+ * \return 0 if successful, or
+ * POLARSSL_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED
+ */
+int ctr_drbg_init( ctr_drbg_context *ctx,
+ int (*f_entropy)(void *, unsigned char *, size_t),
+ void *p_entropy,
+ const unsigned char *custom,
+ size_t len );
+
+/**
+ * \brief Enable / disable prediction resistance (Default: Off)
+ *
+ * Note: If enabled, entropy is used for ctx->entropy_len before each call!
+ * Only use this if you have ample supply of good entropy!
+ *
+ * \param ctx CTR_DRBG context
+ * \param resistance CTR_DRBG_PR_ON or CTR_DRBG_PR_OFF
+ */
+void ctr_drbg_set_prediction_resistance( ctr_drbg_context *ctx,
+ int resistance );
+
+/**
+ * \brief Set the amount of entropy grabbed on each (re)seed
+ * (Default: CTR_DRBG_ENTROPY_LEN)
+ *
+ * \param ctx CTR_DRBG context
+ * \param len Amount of entropy to grab
+ */
+void ctr_drbg_set_entropy_len( ctr_drbg_context *ctx,
+ size_t len );
+
+/**
+ * \brief Set the reseed interval
+ * (Default: CTR_DRBG_RESEED_INTERVAL)
+ *
+ * \param ctx CTR_DRBG context
+ * \param interval Reseed interval
+ */
+void ctr_drbg_set_reseed_interval( ctr_drbg_context *ctx,
+ int interval );
+
+/**
+ * \brief CTR_DRBG reseeding (extracts data from entropy source)
+ *
+ * \param ctx CTR_DRBG context
+ * \param additional Additional data to add to state (Can be NULL)
+ * \param len Length of additional data
+ *
+ * \return 0 if successful, or
+ * POLARSSL_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED
+ */
+int ctr_drbg_reseed( ctr_drbg_context *ctx,
+ const unsigned char *additional, size_t len );
+
+/**
+ * \brief CTR_DRBG update state
+ *
+ * \param ctx CTR_DRBG context
+ * \param additional Additional data to update state with
+ * \param add_len Length of additional data
+ */
+void ctr_drbg_update( ctr_drbg_context *ctx,
+ const unsigned char *additional, size_t add_len );
+
+/**
+ * \brief CTR_DRBG generate random with additional update input
+ *
+ * Note: Automatically reseeds if reseed_counter is reached.
+ *
+ * \param p_rng CTR_DRBG context
+ * \param output Buffer to fill
+ * \param output_len Length of the buffer
+ * \param additional Additional data to update with (Can be NULL)
+ * \param add_len Length of additional data
+ *
+ * \return 0 if successful, or
+ * POLARSSL_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED, or
+ * POLARSSL_ERR_CTR_DRBG_REQUEST_TOO_BIG
+ */
+int ctr_drbg_random_with_add( void *p_rng,
+ unsigned char *output, size_t output_len,
+ const unsigned char *additional, size_t add_len );
+
+/**
+ * \brief CTR_DRBG generate random
+ *
+ * Note: Automatically reseeds if reseed_counter is reached.
+ *
+ * \param p_rng CTR_DRBG context
+ * \param output Buffer to fill
+ * \param output_len Length of the buffer
+ *
+ * \return 0 if successful, or
+ * POLARSSL_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED, or
+ * POLARSSL_ERR_CTR_DRBG_REQUEST_TOO_BIG
+ */
+int ctr_drbg_random( void *p_rng,
+ unsigned char *output, size_t output_len );
+
+#if defined(POLARSSL_FS_IO)
+/**
+ * \brief Write a seed file
+ *
+ * \param path Name of the file
+ *
+ * \return 0 if successful, 1 on file error, or
+ * POLARSSL_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED
+ */
+int ctr_drbg_write_seed_file( ctr_drbg_context *ctx, const char *path );
+
+/**
+ * \brief Read and update a seed file. Seed is added to this
+ * instance
+ *
+ * \param path Name of the file
+ *
+ * \return 0 if successful, 1 on file error,
+ * POLARSSL_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED or
+ * POLARSSL_ERR_CTR_DRBG_INPUT_TOO_BIG
+ */
+int ctr_drbg_update_seed_file( ctr_drbg_context *ctx, const char *path );
+#endif
+
+/**
+ * \brief Checkup routine
+ *
+ * \return 0 if successful, or 1 if the test failed
+ */
+int ctr_drbg_self_test( int verbose );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* ctr_drbg.h */
--- /dev/null
+/**
+ * \file debug.h
+ *
+ * \brief Debug functions
+ *
+ * Copyright (C) 2006-2011, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#ifndef POLARSSL_DEBUG_H
+#define POLARSSL_DEBUG_H
+
+#include "config.h"
+#include "ssl.h"
+
+#if defined(POLARSSL_DEBUG_MSG) && defined(POLARSSL_DEBUG_C)
+
+#define SSL_DEBUG_MSG( level, args ) \
+ debug_print_msg( ssl, level, __FILE__, __LINE__, debug_fmt args );
+
+#define SSL_DEBUG_RET( level, text, ret ) \
+ debug_print_ret( ssl, level, __FILE__, __LINE__, text, ret );
+
+#define SSL_DEBUG_BUF( level, text, buf, len ) \
+ debug_print_buf( ssl, level, __FILE__, __LINE__, text, buf, len );
+
+#define SSL_DEBUG_MPI( level, text, X ) \
+ debug_print_mpi( ssl, level, __FILE__, __LINE__, text, X );
+
+#define SSL_DEBUG_CRT( level, text, crt ) \
+ debug_print_crt( ssl, level, __FILE__, __LINE__, text, crt );
+
+#else
+
+#define SSL_DEBUG_MSG( level, args ) do { } while( 0 )
+#define SSL_DEBUG_RET( level, text, ret ) do { } while( 0 )
+#define SSL_DEBUG_BUF( level, text, buf, len ) do { } while( 0 )
+#define SSL_DEBUG_MPI( level, text, X ) do { } while( 0 )
+#define SSL_DEBUG_CRT( level, text, crt ) do { } while( 0 )
+
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+char *debug_fmt( const char *format, ... );
+
+void debug_print_msg( const ssl_context *ssl, int level,
+ const char *file, int line, const char *text );
+
+void debug_print_ret( const ssl_context *ssl, int level,
+ const char *file, int line,
+ const char *text, int ret );
+
+void debug_print_buf( const ssl_context *ssl, int level,
+ const char *file, int line, const char *text,
+ unsigned char *buf, size_t len );
+
+void debug_print_mpi( const ssl_context *ssl, int level,
+ const char *file, int line,
+ const char *text, const mpi *X );
+
+void debug_print_crt( const ssl_context *ssl, int level,
+ const char *file, int line,
+ const char *text, const x509_cert *crt );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* debug.h */
--- /dev/null
+/**
+ * \file des.h
+ *
+ * \brief DES block cipher
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#ifndef POLARSSL_DES_H
+#define POLARSSL_DES_H
+
+#include <string.h>
+
+#define DES_ENCRYPT 1
+#define DES_DECRYPT 0
+
+#define POLARSSL_ERR_DES_INVALID_INPUT_LENGTH -0x0032 /**< The data input has an invalid length. */
+
+#define DES_KEY_SIZE 8
+
+/**
+ * \brief DES context structure
+ */
+typedef struct
+{
+ int mode; /*!< encrypt/decrypt */
+ unsigned long sk[32]; /*!< DES subkeys */
+}
+des_context;
+
+/**
+ * \brief Triple-DES context structure
+ */
+typedef struct
+{
+ int mode; /*!< encrypt/decrypt */
+ unsigned long sk[96]; /*!< 3DES subkeys */
+}
+des3_context;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief Set key parity on the given key to odd.
+ *
+ * DES keys are 56 bits long, but each byte is padded with
+ * a parity bit to allow verification.
+ *
+ * \param key 8-byte secret key
+ */
+void des_key_set_parity( unsigned char key[DES_KEY_SIZE] );
+
+/**
+ * \brief Check that key parity on the given key is odd.
+ *
+ * DES keys are 56 bits long, but each byte is padded with
+ * a parity bit to allow verification.
+ *
+ * \param key 8-byte secret key
+ *
+ * \return 0 is parity was ok, 1 if parity was not correct.
+ */
+int des_key_check_key_parity( const unsigned char key[DES_KEY_SIZE] );
+
+/**
+ * \brief Check that key is not a weak or semi-weak DES key
+ *
+ * \param key 8-byte secret key
+ *
+ * \return 0 if no weak key was found, 1 if a weak key was identified.
+ */
+int des_key_check_weak( const unsigned char key[DES_KEY_SIZE] );
+
+/**
+ * \brief DES key schedule (56-bit, encryption)
+ *
+ * \param ctx DES context to be initialized
+ * \param key 8-byte secret key
+ *
+ * \return 0
+ */
+int des_setkey_enc( des_context *ctx, const unsigned char key[DES_KEY_SIZE] );
+
+/**
+ * \brief DES key schedule (56-bit, decryption)
+ *
+ * \param ctx DES context to be initialized
+ * \param key 8-byte secret key
+ *
+ * \return 0
+ */
+int des_setkey_dec( des_context *ctx, const unsigned char key[DES_KEY_SIZE] );
+
+/**
+ * \brief Triple-DES key schedule (112-bit, encryption)
+ *
+ * \param ctx 3DES context to be initialized
+ * \param key 16-byte secret key
+ *
+ * \return 0
+ */
+int des3_set2key_enc( des3_context *ctx, const unsigned char key[DES_KEY_SIZE * 2] );
+
+/**
+ * \brief Triple-DES key schedule (112-bit, decryption)
+ *
+ * \param ctx 3DES context to be initialized
+ * \param key 16-byte secret key
+ *
+ * \return 0
+ */
+int des3_set2key_dec( des3_context *ctx, const unsigned char key[DES_KEY_SIZE * 2] );
+
+/**
+ * \brief Triple-DES key schedule (168-bit, encryption)
+ *
+ * \param ctx 3DES context to be initialized
+ * \param key 24-byte secret key
+ *
+ * \return 0
+ */
+int des3_set3key_enc( des3_context *ctx, const unsigned char key[DES_KEY_SIZE * 3] );
+
+/**
+ * \brief Triple-DES key schedule (168-bit, decryption)
+ *
+ * \param ctx 3DES context to be initialized
+ * \param key 24-byte secret key
+ *
+ * \return 0
+ */
+int des3_set3key_dec( des3_context *ctx, const unsigned char key[DES_KEY_SIZE * 3] );
+
+/**
+ * \brief DES-ECB block encryption/decryption
+ *
+ * \param ctx DES context
+ * \param input 64-bit input block
+ * \param output 64-bit output block
+ *
+ * \return 0 if successful
+ */
+int des_crypt_ecb( des_context *ctx,
+ const unsigned char input[8],
+ unsigned char output[8] );
+
+/**
+ * \brief DES-CBC buffer encryption/decryption
+ *
+ * \param ctx DES context
+ * \param mode DES_ENCRYPT or DES_DECRYPT
+ * \param length length of the input data
+ * \param iv initialization vector (updated after use)
+ * \param input buffer holding the input data
+ * \param output buffer holding the output data
+ */
+int des_crypt_cbc( des_context *ctx,
+ int mode,
+ size_t length,
+ unsigned char iv[8],
+ const unsigned char *input,
+ unsigned char *output );
+
+/**
+ * \brief 3DES-ECB block encryption/decryption
+ *
+ * \param ctx 3DES context
+ * \param input 64-bit input block
+ * \param output 64-bit output block
+ *
+ * \return 0 if successful
+ */
+int des3_crypt_ecb( des3_context *ctx,
+ const unsigned char input[8],
+ unsigned char output[8] );
+
+/**
+ * \brief 3DES-CBC buffer encryption/decryption
+ *
+ * \param ctx 3DES context
+ * \param mode DES_ENCRYPT or DES_DECRYPT
+ * \param length length of the input data
+ * \param iv initialization vector (updated after use)
+ * \param input buffer holding the input data
+ * \param output buffer holding the output data
+ *
+ * \return 0 if successful, or POLARSSL_ERR_DES_INVALID_INPUT_LENGTH
+ */
+int des3_crypt_cbc( des3_context *ctx,
+ int mode,
+ size_t length,
+ unsigned char iv[8],
+ const unsigned char *input,
+ unsigned char *output );
+
+/*
+ * \brief Checkup routine
+ *
+ * \return 0 if successful, or 1 if the test failed
+ */
+int des_self_test( int verbose );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* des.h */
--- /dev/null
+/**
+ * \file dhm.h
+ *
+ * \brief Diffie-Hellman-Merkle key exchange
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#ifndef POLARSSL_DHM_H
+#define POLARSSL_DHM_H
+
+#include "bignum.h"
+
+/*
+ * DHM Error codes
+ */
+#define POLARSSL_ERR_DHM_BAD_INPUT_DATA -0x3080 /**< Bad input parameters to function. */
+#define POLARSSL_ERR_DHM_READ_PARAMS_FAILED -0x3100 /**< Reading of the DHM parameters failed. */
+#define POLARSSL_ERR_DHM_MAKE_PARAMS_FAILED -0x3180 /**< Making of the DHM parameters failed. */
+#define POLARSSL_ERR_DHM_READ_PUBLIC_FAILED -0x3200 /**< Reading of the public values failed. */
+#define POLARSSL_ERR_DHM_MAKE_PUBLIC_FAILED -0x3280 /**< Makeing of the public value failed. */
+#define POLARSSL_ERR_DHM_CALC_SECRET_FAILED -0x3300 /**< Calculation of the DHM secret failed. */
+
+/**
+ * \brief DHM context structure
+ */
+typedef struct
+{
+ size_t len; /*!< size(P) in chars */
+ mpi P; /*!< prime modulus */
+ mpi G; /*!< generator */
+ mpi X; /*!< secret value */
+ mpi GX; /*!< self = G^X mod P */
+ mpi GY; /*!< peer = G^Y mod P */
+ mpi K; /*!< key = GY^X mod P */
+ mpi RP; /*!< cached R^2 mod P */
+}
+dhm_context;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief Parse the ServerKeyExchange parameters
+ *
+ * \param ctx DHM context
+ * \param p &(start of input buffer)
+ * \param end end of buffer
+ *
+ * \return 0 if successful, or an POLARSSL_ERR_DHM_XXX error code
+ */
+int dhm_read_params( dhm_context *ctx,
+ unsigned char **p,
+ const unsigned char *end );
+
+/**
+ * \brief Setup and write the ServerKeyExchange parameters
+ *
+ * \param ctx DHM context
+ * \param x_size private value size in bytes
+ * \param output destination buffer
+ * \param olen number of chars written
+ * \param f_rng RNG function
+ * \param p_rng RNG parameter
+ *
+ * \note This function assumes that ctx->P and ctx->G
+ * have already been properly set (for example
+ * using mpi_read_string or mpi_read_binary).
+ *
+ * \return 0 if successful, or an POLARSSL_ERR_DHM_XXX error code
+ */
+int dhm_make_params( dhm_context *ctx, int x_size,
+ unsigned char *output, size_t *olen,
+ int (*f_rng)(void *, unsigned char *, size_t),
+ void *p_rng );
+
+/**
+ * \brief Import the peer's public value G^Y
+ *
+ * \param ctx DHM context
+ * \param input input buffer
+ * \param ilen size of buffer
+ *
+ * \return 0 if successful, or an POLARSSL_ERR_DHM_XXX error code
+ */
+int dhm_read_public( dhm_context *ctx,
+ const unsigned char *input, size_t ilen );
+
+/**
+ * \brief Create own private value X and export G^X
+ *
+ * \param ctx DHM context
+ * \param x_size private value size in bits
+ * \param output destination buffer
+ * \param olen must be equal to ctx->P.len
+ * \param f_rng RNG function
+ * \param p_rng RNG parameter
+ *
+ * \return 0 if successful, or an POLARSSL_ERR_DHM_XXX error code
+ */
+int dhm_make_public( dhm_context *ctx, int x_size,
+ unsigned char *output, size_t olen,
+ int (*f_rng)(void *, unsigned char *, size_t),
+ void *p_rng );
+
+/**
+ * \brief Derive and export the shared secret (G^Y)^X mod P
+ *
+ * \param ctx DHM context
+ * \param output destination buffer
+ * \param olen number of chars written
+ *
+ * \return 0 if successful, or an POLARSSL_ERR_DHM_XXX error code
+ */
+int dhm_calc_secret( dhm_context *ctx,
+ unsigned char *output, size_t *olen );
+
+/*
+ * \brief Free the components of a DHM key
+ */
+void dhm_free( dhm_context *ctx );
+
+/**
+ * \brief Checkup routine
+ *
+ * \return 0 if successful, or 1 if the test failed
+ */
+int dhm_self_test( int verbose );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
--- /dev/null
+/**
+ * \file entropy.h
+ *
+ * \brief Entropy accumulator implementation
+ *
+ * Copyright (C) 2006-2011, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#ifndef POLARSSL_ENTROPY_H
+#define POLARSSL_ENTROPY_H
+
+#include <string.h>
+
+#include "config.h"
+
+#include "sha4.h"
+#if defined(POLARSSL_HAVEGE_C)
+#include "havege.h"
+#endif
+
+#define POLARSSL_ERR_ENTROPY_SOURCE_FAILED -0x003C /**< Critical entropy source failure. */
+#define POLARSSL_ERR_ENTROPY_MAX_SOURCES -0x003E /**< No more sources can be added. */
+#define POLARSSL_ERR_ENTROPY_NO_SOURCES_DEFINED -0x0040 /**< No sources have been added to poll. */
+
+#define ENTROPY_MAX_SOURCES 20 /**< Maximum number of sources supported */
+#define ENTROPY_MAX_GATHER 128 /**< Maximum amount requested from entropy sources */
+#define ENTROPY_BLOCK_SIZE 64 /**< Block size of entropy accumulator (SHA-512) */
+
+#define ENTROPY_SOURCE_MANUAL ENTROPY_MAX_SOURCES
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief Entropy poll callback pointer
+ *
+ * \param data Callback-specific data pointer
+ * \param output Data to fill
+ * \param len Maximum size to provide
+ * \param olen The actual amount of bytes put into the buffer (Can be 0)
+ *
+ * \return 0 if no critical failures occurred,
+ * POLARSSL_ERR_ENTROPY_SOURCE_FAILED otherwise
+ */
+typedef int (*f_source_ptr)(void *, unsigned char *, size_t, size_t *);
+
+/**
+ * \brief Entropy source state
+ */
+typedef struct
+{
+ f_source_ptr f_source; /**< The entropy source callback */
+ void * p_source; /**< The callback data pointer */
+ size_t size; /**< Amount received */
+ size_t threshold; /**< Minimum level required before release */
+}
+source_state;
+
+/**
+ * \brief Entropy context structure
+ */
+typedef struct
+{
+ sha4_context accumulator;
+ int source_count;
+ source_state source[ENTROPY_MAX_SOURCES];
+#if defined(POLARSSL_HAVEGE_C)
+ havege_state havege_data;
+#endif
+}
+entropy_context;
+
+/**
+ * \brief Initialize the context
+ *
+ * \param ctx Entropy context to initialize
+ */
+void entropy_init( entropy_context *ctx );
+
+/**
+ * \brief Adds an entropy source to poll
+ *
+ * \param ctx Entropy context
+ * \param f_source Entropy function
+ * \param p_source Function data
+ * \param threshold Minimum required from source before entropy is released
+ * ( with entropy_func() )
+ *
+ * \return 0 if successful or POLARSSL_ERR_ENTROPY_MAX_SOURCES
+ */
+int entropy_add_source( entropy_context *ctx,
+ f_source_ptr f_source, void *p_source,
+ size_t threshold );
+
+/**
+ * \brief Trigger an extra gather poll for the accumulator
+ *
+ * \param ctx Entropy context
+ *
+ * \return 0 if successful, or POLARSSL_ERR_ENTROPY_SOURCE_FAILED
+ */
+int entropy_gather( entropy_context *ctx );
+
+/**
+ * \brief Retrieve entropy from the accumulator (Max ENTROPY_BLOCK_SIZE)
+ *
+ * \param data Entropy context
+ * \param output Buffer to fill
+ * \param len Length of buffer
+ *
+ * \return 0 if successful, or POLARSSL_ERR_ENTROPY_SOURCE_FAILED
+ */
+int entropy_func( void *data, unsigned char *output, size_t len );
+
+/**
+ * \brief Add data to the accumulator manually
+ *
+ * \param ctx Entropy context
+ * \param data Data to add
+ * \param len Length of data
+ *
+ * \return 0 if successful
+ */
+int entropy_update_manual( entropy_context *ctx,
+ const unsigned char *data, size_t len );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* entropy.h */
--- /dev/null
+/**
+ * \file entropy_poll.h
+ *
+ * \brief Platform-specific and custom entropy polling functions
+ *
+ * Copyright (C) 2006-2011, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#ifndef POLARSSL_ENTROPY_POLL_H
+#define POLARSSL_ENTROPY_POLL_H
+
+#include <string.h>
+
+#include "config.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * Default thresholds for built-in sources
+ */
+#define ENTROPY_MIN_PLATFORM 128 /**< Minimum for platform source */
+#define ENTROPY_MIN_HAVEGE 128 /**< Minimum for HAVEGE */
+#define ENTROPY_MIN_HARDCLOCK 32 /**< Minimum for hardclock() */
+
+#if !defined(POLARSSL_NO_PLATFORM_ENTROPY)
+/**
+ * \brief Platform-specific entropy poll callback
+ */
+int platform_entropy_poll( void *data,
+ unsigned char *output, size_t len, size_t *olen );
+#endif
+
+#if defined(POLARSSL_HAVEGE_C)
+/**
+ * \brief HAVEGE based entropy poll callback
+ *
+ * Requires an HAVEGE state as its data pointer.
+ */
+int havege_poll( void *data,
+ unsigned char *output, size_t len, size_t *olen );
+#endif
+
+#if defined(POLARSSL_TIMING_C)
+/**
+ * \brief hardclock-based entropy poll callback
+ */
+int hardclock_poll( void *data,
+ unsigned char *output, size_t len, size_t *olen );
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* entropy_poll.h */
--- /dev/null
+/**
+ * \file error.h
+ *
+ * \brief Error to string translation
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#ifndef POLARSSL_ERROR_H
+#define POLARSSL_ERROR_H
+
+/**
+ * Error code layout.
+ *
+ * Currently we try to keep all error codes within the negative space of 16
+ * bytes signed integers to support all platforms (-0x0000 - -0x8000). In
+ * addition we'd like to give two layers of information on the error if
+ * possible.
+ *
+ * For that purpose the error codes are segmented in the following manner:
+ *
+ * 16 bit error code bit-segmentation
+ *
+ * 1 bit - Intentionally not used
+ * 3 bits - High level module ID
+ * 5 bits - Module-dependent error code
+ * 6 bits - Low level module errors
+ * 1 bit - Intentionally not used
+ *
+ * Low-level module errors (0x007E-0x0002)
+ *
+ * Module Nr Codes assigned
+ * MPI 7 0x0002-0x0010
+ * ASN1 6 0x0014-0x001E
+ * AES 2 0x0020-0x0022
+ * CAMELLIA 2 0x0024-0x0026
+ * XTEA 1 0x0028-0x0028
+ * BASE64 2 0x002A-0x002C
+ * PADLOCK 1 0x0030-0x0030
+ * DES 1 0x0032-0x0032
+ * NET 11 0x0040-0x0054
+ * CTR_DBRG 3 0x0034-0x003A
+ * ENTROPY 3 0x003C-0x0040
+ * MD2 1 0x0070-0x0070
+ * MD4 1 0x0072-0x0072
+ * MD5 1 0x0074-0x0074
+ * SHA1 1 0x0076-0x0076
+ * SHA2 1 0x0078-0x0078
+ * SHA4 1 0x007A-0x007A
+ *
+ * High-level module nr (3 bits - 0x1...-0x8...)
+ * Name ID Nr of Errors
+ * PEM 1 8
+ * X509 2 21
+ * DHM 3 6
+ * RSA 4 9
+ * MD 5 4
+ * CIPHER 6 5
+ * SSL 7 30
+ *
+ * Module dependent error code (5 bits 0x.08.-0x.F8.)
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief Translate a PolarSSL error code into a string representation,
+ * Result is truncated if necessary and always includes a terminating
+ * null byte.
+ *
+ * \param errnum error code
+ * \param buffer buffer to place representation in
+ * \param buflen length of the buffer
+ */
+void error_strerror( int errnum, char *buffer, size_t buflen );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* error.h */
--- /dev/null
+/**
+ * \file havege.h
+ *
+ * \brief HAVEGE: HArdware Volatile Entropy Gathering and Expansion
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#ifndef POLARSSL_HAVEGE_H
+#define POLARSSL_HAVEGE_H
+
+#include <string.h>
+
+#define COLLECT_SIZE 1024
+
+/**
+ * \brief HAVEGE state structure
+ */
+typedef struct
+{
+ int PT1, PT2, offset[2];
+ int pool[COLLECT_SIZE];
+ int WALK[8192];
+}
+havege_state;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief HAVEGE initialization
+ *
+ * \param hs HAVEGE state to be initialized
+ */
+void havege_init( havege_state *hs );
+
+/**
+ * \brief HAVEGE rand function
+ *
+ * \param p_rng A HAVEGE state
+ * \param output Buffer to fill
+ * \param len Length of buffer
+ *
+ * \return A random int
+ */
+int havege_random( void *p_rng, unsigned char *output, size_t len );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* havege.h */
--- /dev/null
+/**
+ * \file md.h
+ *
+ * \brief Generic message digest wrapper
+ *
+ * \author Adriaan de Jong <dejong@fox-it.com>
+ *
+ * Copyright (C) 2006-2011, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#ifndef POLARSSL_MD_H
+#define POLARSSL_MD_H
+
+#include <string.h>
+
+#if defined(_MSC_VER) && !defined(inline)
+#define inline _inline
+#else
+#if defined(__ARMCC_VERSION) && !defined(inline)
+#define inline __inline
+#endif /* __ARMCC_VERSION */
+#endif /*_MSC_VER */
+
+#define POLARSSL_ERR_MD_FEATURE_UNAVAILABLE -0x5080 /**< The selected feature is not available. */
+#define POLARSSL_ERR_MD_BAD_INPUT_DATA -0x5100 /**< Bad input parameters to function. */
+#define POLARSSL_ERR_MD_ALLOC_FAILED -0x5180 /**< Failed to allocate memory. */
+#define POLARSSL_ERR_MD_FILE_IO_ERROR -0x5200 /**< Opening or reading of file failed. */
+
+typedef enum {
+ POLARSSL_MD_NONE=0,
+ POLARSSL_MD_MD2,
+ POLARSSL_MD_MD4,
+ POLARSSL_MD_MD5,
+ POLARSSL_MD_SHA1,
+ POLARSSL_MD_SHA224,
+ POLARSSL_MD_SHA256,
+ POLARSSL_MD_SHA384,
+ POLARSSL_MD_SHA512,
+} md_type_t;
+
+#define POLARSSL_MD_MAX_SIZE 64 /* longest known is SHA512 */
+
+/**
+ * Message digest information. Allows message digest functions to be called
+ * in a generic way.
+ */
+typedef struct {
+ /** Digest identifier */
+ md_type_t type;
+
+ /** Name of the message digest */
+ const char * name;
+
+ /** Output length of the digest function */
+ int size;
+
+ /** Digest initialisation function */
+ void (*starts_func)( void *ctx );
+
+ /** Digest update function */
+ void (*update_func)( void *ctx, const unsigned char *input, size_t ilen );
+
+ /** Digest finalisation function */
+ void (*finish_func)( void *ctx, unsigned char *output );
+
+ /** Generic digest function */
+ void (*digest_func)( const unsigned char *input, size_t ilen,
+ unsigned char *output );
+
+ /** Generic file digest function */
+ int (*file_func)( const char *path, unsigned char *output );
+
+ /** HMAC Initialisation function */
+ void (*hmac_starts_func)( void *ctx, const unsigned char *key, size_t keylen );
+
+ /** HMAC update function */
+ void (*hmac_update_func)( void *ctx, const unsigned char *input, size_t ilen );
+
+ /** HMAC finalisation function */
+ void (*hmac_finish_func)( void *ctx, unsigned char *output);
+
+ /** HMAC context reset function */
+ void (*hmac_reset_func)( void *ctx );
+
+ /** Generic HMAC function */
+ void (*hmac_func)( const unsigned char *key, size_t keylen,
+ const unsigned char *input, size_t ilen,
+ unsigned char *output );
+
+ /** Allocate a new context */
+ void * (*ctx_alloc_func)( void );
+
+ /** Free the given context */
+ void (*ctx_free_func)( void *ctx );
+
+} md_info_t;
+
+/**
+ * Generic message digest context.
+ */
+typedef struct {
+ /** Information about the associated message digest */
+ const md_info_t *md_info;
+
+ /** Digest-specific context */
+ void *md_ctx;
+} md_context_t;
+
+#define MD_CONTEXT_T_INIT { \
+ NULL, /* md_info */ \
+ NULL, /* md_ctx */ \
+}
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief Returns the list of digests supported by the generic digest module.
+ *
+ * \return a statically allocated array of digests, the last entry
+ * is 0.
+ */
+const int *md_list( void );
+
+/**
+ * \brief Returns the message digest information associated with the
+ * given digest name.
+ *
+ * \param md_name Name of the digest to search for.
+ *
+ * \return The message digest information associated with md_name or
+ * NULL if not found.
+ */
+const md_info_t *md_info_from_string( const char *md_name );
+
+/**
+ * \brief Returns the message digest information associated with the
+ * given digest type.
+ *
+ * \param md_type type of digest to search for.
+ *
+ * \return The message digest information associated with md_type or
+ * NULL if not found.
+ */
+const md_info_t *md_info_from_type( md_type_t md_type );
+
+/**
+ * \brief Initialises and fills the message digest context structure with
+ * the appropriate values.
+ *
+ * \param ctx context to initialise. May not be NULL. The
+ * digest-specific context (ctx->md_ctx) must be NULL. It will
+ * be allocated, and must be freed using md_free_ctx() later.
+ * \param md_info message digest to use.
+ *
+ * \returns \c 0 on success, \c POLARSSL_ERR_MD_BAD_INPUT_DATA on
+ * parameter failure, \c POLARSSL_ERR_MD_ALLOC_FAILED if
+ * allocation of the digest-specific context failed.
+ */
+int md_init_ctx( md_context_t *ctx, const md_info_t *md_info );
+
+/**
+ * \brief Free the message-specific context of ctx. Freeing ctx itself
+ * remains the responsibility of the caller.
+ *
+ * \param ctx Free the message-specific context
+ *
+ * \returns 0 on success, POLARSSL_ERR_MD_BAD_INPUT_DATA if parameter
+ * verification fails.
+ */
+int md_free_ctx( md_context_t *ctx );
+
+/**
+ * \brief Returns the size of the message digest output.
+ *
+ * \param md_info message digest info
+ *
+ * \return size of the message digest output.
+ */
+static inline unsigned char md_get_size( const md_info_t *md_info )
+{
+ return md_info->size;
+}
+
+/**
+ * \brief Returns the type of the message digest output.
+ *
+ * \param md_info message digest info
+ *
+ * \return type of the message digest output.
+ */
+static inline md_type_t md_get_type( const md_info_t *md_info )
+{
+ return md_info->type;
+}
+
+/**
+ * \brief Returns the name of the message digest output.
+ *
+ * \param md_info message digest info
+ *
+ * \return name of the message digest output.
+ */
+static inline const char *md_get_name( const md_info_t *md_info )
+{
+ return md_info->name;
+}
+
+/**
+ * \brief Set-up the given context for a new message digest
+ *
+ * \param ctx generic message digest context.
+ *
+ * \returns 0 on success, POLARSSL_ERR_MD_BAD_INPUT_DATA if parameter
+ * verification fails.
+ */
+int md_starts( md_context_t *ctx );
+
+/**
+ * \brief Generic message digest process buffer
+ *
+ * \param ctx Generic message digest context
+ * \param input buffer holding the datal
+ * \param ilen length of the input data
+ *
+ * \returns 0 on success, POLARSSL_ERR_MD_BAD_INPUT_DATA if parameter
+ * verification fails.
+ */
+int md_update( md_context_t *ctx, const unsigned char *input, size_t ilen );
+
+/**
+ * \brief Generic message digest final digest
+ *
+ * \param ctx Generic message digest context
+ * \param output Generic message digest checksum result
+ *
+ * \returns 0 on success, POLARSSL_ERR_MD_BAD_INPUT_DATA if parameter
+ * verification fails.
+ */
+int md_finish( md_context_t *ctx, unsigned char *output );
+
+/**
+ * \brief Output = message_digest( input buffer )
+ *
+ * \param md_info message digest info
+ * \param input buffer holding the data
+ * \param ilen length of the input data
+ * \param output Generic message digest checksum result
+ *
+ * \returns 0 on success, POLARSSL_ERR_MD_BAD_INPUT_DATA if parameter
+ * verification fails.
+ */
+int md( const md_info_t *md_info, const unsigned char *input, size_t ilen,
+ unsigned char *output );
+
+/**
+ * \brief Output = message_digest( file contents )
+ *
+ * \param md_info message digest info
+ * \param path input file name
+ * \param output generic message digest checksum result
+ *
+ * \return 0 if successful, POLARSSL_ERR_MD_FILE_OPEN_FAILED if fopen
+ * failed, POLARSSL_ERR_MD_FILE_READ_FAILED if fread failed,
+ * POLARSSL_ERR_MD_BAD_INPUT_DATA if md_info was NULL.
+ */
+int md_file( const md_info_t *md_info, const char *path, unsigned char *output );
+
+/**
+ * \brief Generic HMAC context setup
+ *
+ * \param ctx HMAC context to be initialized
+ * \param key HMAC secret key
+ * \param keylen length of the HMAC key
+ *
+ * \returns 0 on success, POLARSSL_ERR_MD_BAD_INPUT_DATA if parameter
+ * verification fails.
+ */
+int md_hmac_starts( md_context_t *ctx, const unsigned char *key, size_t keylen );
+
+/**
+ * \brief Generic HMAC process buffer
+ *
+ * \param ctx HMAC context
+ * \param input buffer holding the data
+ * \param ilen length of the input data
+ *
+ * \returns 0 on success, POLARSSL_ERR_MD_BAD_INPUT_DATA if parameter
+ * verification fails.
+ */
+int md_hmac_update( md_context_t *ctx, const unsigned char *input, size_t ilen );
+
+/**
+ * \brief Generic HMAC final digest
+ *
+ * \param ctx HMAC context
+ * \param output Generic HMAC checksum result
+ *
+ * \returns 0 on success, POLARSSL_ERR_MD_BAD_INPUT_DATA if parameter
+ * verification fails.
+ */
+int md_hmac_finish( md_context_t *ctx, unsigned char *output);
+
+/**
+ * \brief Generic HMAC context reset
+ *
+ * \param ctx HMAC context to be reset
+ *
+ * \returns 0 on success, POLARSSL_ERR_MD_BAD_INPUT_DATA if parameter
+ * verification fails.
+ */
+int md_hmac_reset( md_context_t *ctx );
+
+/**
+ * \brief Output = Generic_HMAC( hmac key, input buffer )
+ *
+ * \param md_info message digest info
+ * \param key HMAC secret key
+ * \param keylen length of the HMAC key
+ * \param input buffer holding the data
+ * \param ilen length of the input data
+ * \param output Generic HMAC-result
+ *
+ * \returns 0 on success, POLARSSL_ERR_MD_BAD_INPUT_DATA if parameter
+ * verification fails.
+ */
+int md_hmac( const md_info_t *md_info, const unsigned char *key, size_t keylen,
+ const unsigned char *input, size_t ilen,
+ unsigned char *output );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* POLARSSL_MD_H */
--- /dev/null
+/**
+ * \file md2.h
+ *
+ * \brief MD2 message digest algorithm (hash function)
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#ifndef POLARSSL_MD2_H
+#define POLARSSL_MD2_H
+
+#include <string.h>
+
+#define POLARSSL_ERR_MD2_FILE_IO_ERROR -0x0070 /**< Read/write error in file. */
+
+/**
+ * \brief MD2 context structure
+ */
+typedef struct
+{
+ unsigned char cksum[16]; /*!< checksum of the data block */
+ unsigned char state[48]; /*!< intermediate digest state */
+ unsigned char buffer[16]; /*!< data block being processed */
+
+ unsigned char ipad[16]; /*!< HMAC: inner padding */
+ unsigned char opad[16]; /*!< HMAC: outer padding */
+ size_t left; /*!< amount of data in buffer */
+}
+md2_context;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief MD2 context setup
+ *
+ * \param ctx context to be initialized
+ */
+void md2_starts( md2_context *ctx );
+
+/**
+ * \brief MD2 process buffer
+ *
+ * \param ctx MD2 context
+ * \param input buffer holding the data
+ * \param ilen length of the input data
+ */
+void md2_update( md2_context *ctx, const unsigned char *input, size_t ilen );
+
+/**
+ * \brief MD2 final digest
+ *
+ * \param ctx MD2 context
+ * \param output MD2 checksum result
+ */
+void md2_finish( md2_context *ctx, unsigned char output[16] );
+
+/**
+ * \brief Output = MD2( input buffer )
+ *
+ * \param input buffer holding the data
+ * \param ilen length of the input data
+ * \param output MD2 checksum result
+ */
+void md2( const unsigned char *input, size_t ilen, unsigned char output[16] );
+
+/**
+ * \brief Output = MD2( file contents )
+ *
+ * \param path input file name
+ * \param output MD2 checksum result
+ *
+ * \return 0 if successful, or POLARSSL_ERR_MD2_FILE_IO_ERROR
+ */
+int md2_file( const char *path, unsigned char output[16] );
+
+/**
+ * \brief MD2 HMAC context setup
+ *
+ * \param ctx HMAC context to be initialized
+ * \param key HMAC secret key
+ * \param keylen length of the HMAC key
+ */
+void md2_hmac_starts( md2_context *ctx, const unsigned char *key, size_t keylen );
+
+/**
+ * \brief MD2 HMAC process buffer
+ *
+ * \param ctx HMAC context
+ * \param input buffer holding the data
+ * \param ilen length of the input data
+ */
+void md2_hmac_update( md2_context *ctx, const unsigned char *input, size_t ilen );
+
+/**
+ * \brief MD2 HMAC final digest
+ *
+ * \param ctx HMAC context
+ * \param output MD2 HMAC checksum result
+ */
+void md2_hmac_finish( md2_context *ctx, unsigned char output[16] );
+
+/**
+ * \brief MD2 HMAC context reset
+ *
+ * \param ctx HMAC context to be reset
+ */
+void md2_hmac_reset( md2_context *ctx );
+
+/**
+ * \brief Output = HMAC-MD2( hmac key, input buffer )
+ *
+ * \param key HMAC secret key
+ * \param keylen length of the HMAC key
+ * \param input buffer holding the data
+ * \param ilen length of the input data
+ * \param output HMAC-MD2 result
+ */
+void md2_hmac( const unsigned char *key, size_t keylen,
+ const unsigned char *input, size_t ilen,
+ unsigned char output[16] );
+
+/**
+ * \brief Checkup routine
+ *
+ * \return 0 if successful, or 1 if the test failed
+ */
+int md2_self_test( int verbose );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* md2.h */
--- /dev/null
+/**
+ * \file md4.h
+ *
+ * \brief MD4 message digest algorithm (hash function)
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#ifndef POLARSSL_MD4_H
+#define POLARSSL_MD4_H
+
+#include <string.h>
+
+#define POLARSSL_ERR_MD4_FILE_IO_ERROR -0x0072 /**< Read/write error in file. */
+
+/**
+ * \brief MD4 context structure
+ */
+typedef struct
+{
+ unsigned long total[2]; /*!< number of bytes processed */
+ unsigned long state[4]; /*!< intermediate digest state */
+ unsigned char buffer[64]; /*!< data block being processed */
+
+ unsigned char ipad[64]; /*!< HMAC: inner padding */
+ unsigned char opad[64]; /*!< HMAC: outer padding */
+}
+md4_context;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief MD4 context setup
+ *
+ * \param ctx context to be initialized
+ */
+void md4_starts( md4_context *ctx );
+
+/**
+ * \brief MD4 process buffer
+ *
+ * \param ctx MD4 context
+ * \param input buffer holding the data
+ * \param ilen length of the input data
+ */
+void md4_update( md4_context *ctx, const unsigned char *input, size_t ilen );
+
+/**
+ * \brief MD4 final digest
+ *
+ * \param ctx MD4 context
+ * \param output MD4 checksum result
+ */
+void md4_finish( md4_context *ctx, unsigned char output[16] );
+
+/**
+ * \brief Output = MD4( input buffer )
+ *
+ * \param input buffer holding the data
+ * \param ilen length of the input data
+ * \param output MD4 checksum result
+ */
+void md4( const unsigned char *input, size_t ilen, unsigned char output[16] );
+
+/**
+ * \brief Output = MD4( file contents )
+ *
+ * \param path input file name
+ * \param output MD4 checksum result
+ *
+ * \return 0 if successful, or POLARSSL_ERR_MD4_FILE_IO_ERROR
+ */
+int md4_file( const char *path, unsigned char output[16] );
+
+/**
+ * \brief MD4 HMAC context setup
+ *
+ * \param ctx HMAC context to be initialized
+ * \param key HMAC secret key
+ * \param keylen length of the HMAC key
+ */
+void md4_hmac_starts( md4_context *ctx, const unsigned char *key, size_t keylen );
+
+/**
+ * \brief MD4 HMAC process buffer
+ *
+ * \param ctx HMAC context
+ * \param input buffer holding the data
+ * \param ilen length of the input data
+ */
+void md4_hmac_update( md4_context *ctx, const unsigned char *input, size_t ilen );
+
+/**
+ * \brief MD4 HMAC final digest
+ *
+ * \param ctx HMAC context
+ * \param output MD4 HMAC checksum result
+ */
+void md4_hmac_finish( md4_context *ctx, unsigned char output[16] );
+
+/**
+ * \brief MD4 HMAC context reset
+ *
+ * \param ctx HMAC context to be reset
+ */
+void md4_hmac_reset( md4_context *ctx );
+
+/**
+ * \brief Output = HMAC-MD4( hmac key, input buffer )
+ *
+ * \param key HMAC secret key
+ * \param keylen length of the HMAC key
+ * \param input buffer holding the data
+ * \param ilen length of the input data
+ * \param output HMAC-MD4 result
+ */
+void md4_hmac( const unsigned char *key, size_t keylen,
+ const unsigned char *input, size_t ilen,
+ unsigned char output[16] );
+
+/**
+ * \brief Checkup routine
+ *
+ * \return 0 if successful, or 1 if the test failed
+ */
+int md4_self_test( int verbose );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* md4.h */
--- /dev/null
+/**
+ * \file md5.h
+ *
+ * \brief MD5 message digest algorithm (hash function)
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#ifndef POLARSSL_MD5_H
+#define POLARSSL_MD5_H
+
+#include <string.h>
+
+#define POLARSSL_ERR_MD5_FILE_IO_ERROR -0x0074 /**< Read/write error in file. */
+
+/**
+ * \brief MD5 context structure
+ */
+typedef struct
+{
+ unsigned long total[2]; /*!< number of bytes processed */
+ unsigned long state[4]; /*!< intermediate digest state */
+ unsigned char buffer[64]; /*!< data block being processed */
+
+ unsigned char ipad[64]; /*!< HMAC: inner padding */
+ unsigned char opad[64]; /*!< HMAC: outer padding */
+}
+md5_context;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief MD5 context setup
+ *
+ * \param ctx context to be initialized
+ */
+void md5_starts( md5_context *ctx );
+
+/**
+ * \brief MD5 process buffer
+ *
+ * \param ctx MD5 context
+ * \param input buffer holding the data
+ * \param ilen length of the input data
+ */
+void md5_update( md5_context *ctx, const unsigned char *input, size_t ilen );
+
+/**
+ * \brief MD5 final digest
+ *
+ * \param ctx MD5 context
+ * \param output MD5 checksum result
+ */
+void md5_finish( md5_context *ctx, unsigned char output[16] );
+
+/**
+ * \brief Output = MD5( input buffer )
+ *
+ * \param input buffer holding the data
+ * \param ilen length of the input data
+ * \param output MD5 checksum result
+ */
+void md5( const unsigned char *input, size_t ilen, unsigned char output[16] );
+
+/**
+ * \brief Output = MD5( file contents )
+ *
+ * \param path input file name
+ * \param output MD5 checksum result
+ *
+ * \return 0 if successful, or POLARSSL_ERR_MD5_FILE_IO_ERROR
+ */
+int md5_file( const char *path, unsigned char output[16] );
+
+/**
+ * \brief MD5 HMAC context setup
+ *
+ * \param ctx HMAC context to be initialized
+ * \param key HMAC secret key
+ * \param keylen length of the HMAC key
+ */
+void md5_hmac_starts( md5_context *ctx,
+ const unsigned char *key, size_t keylen );
+
+/**
+ * \brief MD5 HMAC process buffer
+ *
+ * \param ctx HMAC context
+ * \param input buffer holding the data
+ * \param ilen length of the input data
+ */
+void md5_hmac_update( md5_context *ctx,
+ const unsigned char *input, size_t ilen );
+
+/**
+ * \brief MD5 HMAC final digest
+ *
+ * \param ctx HMAC context
+ * \param output MD5 HMAC checksum result
+ */
+void md5_hmac_finish( md5_context *ctx, unsigned char output[16] );
+
+/**
+ * \brief MD5 HMAC context reset
+ *
+ * \param ctx HMAC context to be reset
+ */
+void md5_hmac_reset( md5_context *ctx );
+
+/**
+ * \brief Output = HMAC-MD5( hmac key, input buffer )
+ *
+ * \param key HMAC secret key
+ * \param keylen length of the HMAC key
+ * \param input buffer holding the data
+ * \param ilen length of the input data
+ * \param output HMAC-MD5 result
+ */
+void md5_hmac( const unsigned char *key, size_t keylen,
+ const unsigned char *input, size_t ilen,
+ unsigned char output[16] );
+
+/**
+ * \brief Checkup routine
+ *
+ * \return 0 if successful, or 1 if the test failed
+ */
+int md5_self_test( int verbose );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* md5.h */
--- /dev/null
+/**
+ * \file md_wrap.h
+ *
+ * \brief Message digest wrappers.
+ *
+ * \author Adriaan de Jong <dejong@fox-it.com>
+ *
+ * Copyright (C) 2006-2011, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#ifndef POLARSSL_MD_WRAP_H
+#define POLARSSL_MD_WRAP_H
+
+#include "config.h"
+#include "md.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if defined(POLARSSL_MD2_C)
+extern const md_info_t md2_info;
+#endif
+#if defined(POLARSSL_MD4_C)
+extern const md_info_t md4_info;
+#endif
+#if defined(POLARSSL_MD5_C)
+extern const md_info_t md5_info;
+#endif
+#if defined(POLARSSL_SHA1_C)
+extern const md_info_t sha1_info;
+#endif
+#if defined(POLARSSL_SHA2_C)
+extern const md_info_t sha224_info;
+extern const md_info_t sha256_info;
+#endif
+#if defined(POLARSSL_SHA4_C)
+extern const md_info_t sha384_info;
+extern const md_info_t sha512_info;
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* POLARSSL_MD_WRAP_H */
--- /dev/null
+/**
+ * \file net.h
+ *
+ * \brief Network communication functions
+ *
+ * Copyright (C) 2006-2011, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#ifndef POLARSSL_NET_H
+#define POLARSSL_NET_H
+
+#include <string.h>
+
+#define POLARSSL_ERR_NET_UNKNOWN_HOST -0x0040 /**< Failed to get an IP address for the given hostname. */
+#define POLARSSL_ERR_NET_SOCKET_FAILED -0x0042 /**< Failed to open a socket. */
+#define POLARSSL_ERR_NET_CONNECT_FAILED -0x0044 /**< The connection to the given server / port failed. */
+#define POLARSSL_ERR_NET_BIND_FAILED -0x0046 /**< Binding of the socket failed. */
+#define POLARSSL_ERR_NET_LISTEN_FAILED -0x0048 /**< Could not listen on the socket. */
+#define POLARSSL_ERR_NET_ACCEPT_FAILED -0x004A /**< Could not accept the incoming connection. */
+#define POLARSSL_ERR_NET_RECV_FAILED -0x004C /**< Reading information from the socket failed. */
+#define POLARSSL_ERR_NET_SEND_FAILED -0x004E /**< Sending information through the socket failed. */
+#define POLARSSL_ERR_NET_CONN_RESET -0x0050 /**< Connection was reset by peer. */
+#define POLARSSL_ERR_NET_WANT_READ -0x0052 /**< Connection requires a read call. */
+#define POLARSSL_ERR_NET_WANT_WRITE -0x0054 /**< Connection requires a write call. */
+
+#define POLARSSL_NET_LISTEN_BACKLOG 10 /**< The backlog that listen() should use. */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief Initiate a TCP connection with host:port
+ *
+ * \param fd Socket to use
+ * \param host Host to connect to
+ * \param port Port to connect to
+ *
+ * \return 0 if successful, or one of:
+ * POLARSSL_ERR_NET_SOCKET_FAILED,
+ * POLARSSL_ERR_NET_UNKNOWN_HOST,
+ * POLARSSL_ERR_NET_CONNECT_FAILED
+ */
+int net_connect( int *fd, const char *host, int port );
+
+/**
+ * \brief Create a listening socket on bind_ip:port.
+ * If bind_ip == NULL, all interfaces are binded.
+ *
+ * \param fd Socket to use
+ * \param bind_ip IP to bind to, can be NULL
+ * \param port Port number to use
+ *
+ * \return 0 if successful, or one of:
+ * POLARSSL_ERR_NET_SOCKET_FAILED,
+ * POLARSSL_ERR_NET_BIND_FAILED,
+ * POLARSSL_ERR_NET_LISTEN_FAILED
+ */
+int net_bind( int *fd, const char *bind_ip, int port );
+
+/**
+ * \brief Accept a connection from a remote client
+ *
+ * \param bind_fd Relevant socket
+ * \param client_fd Will contain the connected client socket
+ * \param client_ip Will contain the client IP address
+ *
+ * \return 0 if successful, POLARSSL_ERR_NET_ACCEPT_FAILED, or
+ * POLARSSL_ERR_NET_WOULD_BLOCK is bind_fd was set to
+ * non-blocking and accept() is blocking.
+ */
+int net_accept( int bind_fd, int *client_fd, void *client_ip );
+
+/**
+ * \brief Set the socket blocking
+ *
+ * \param fd Socket to set
+ *
+ * \return 0 if successful, or a non-zero error code
+ */
+int net_set_block( int fd );
+
+/**
+ * \brief Set the socket non-blocking
+ *
+ * \param fd Socket to set
+ *
+ * \return 0 if successful, or a non-zero error code
+ */
+int net_set_nonblock( int fd );
+
+/**
+ * \brief Portable usleep helper
+ *
+ * \param usec Amount of microseconds to sleep
+ *
+ * \note Real amount of time slept will not be less than
+ * select()'s timeout granularity (typically, 10ms).
+ */
+void net_usleep( unsigned long usec );
+
+/**
+ * \brief Read at most 'len' characters. If no error occurs,
+ * the actual amount read is returned.
+ *
+ * \param ctx Socket
+ * \param buf The buffer to write to
+ * \param len Maximum length of the buffer
+ *
+ * \return This function returns the number of bytes received,
+ * or a non-zero error code; POLARSSL_ERR_NET_WANT_READ
+ * indicates read() is blocking.
+ */
+int net_recv( void *ctx, unsigned char *buf, size_t len );
+
+/**
+ * \brief Write at most 'len' characters. If no error occurs,
+ * the actual amount read is returned.
+ *
+ * \param ctx Socket
+ * \param buf The buffer to read from
+ * \param len The length of the buffer
+ *
+ * \return This function returns the number of bytes sent,
+ * or a non-zero error code; POLARSSL_ERR_NET_WANT_WRITE
+ * indicates write() is blocking.
+ */
+int net_send( void *ctx, const unsigned char *buf, size_t len );
+
+/**
+ * \brief Gracefully shutdown the connection
+ *
+ * \param fd The socket to close
+ */
+void net_close( int fd );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* net.h */
--- /dev/null
+/**
+ * \file openssl.h
+ *
+ * \brief OpenSSL wrapper (definitions, inline functions).
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+/*
+ * OpenSSL wrapper contributed by David Barett
+ */
+#ifndef POLARSSL_OPENSSL_H
+#define POLARSSL_OPENSSL_H
+
+#include "aes.h"
+#include "md5.h"
+#include "rsa.h"
+#include "sha1.h"
+
+#define AES_SIZE 16
+#define AES_BLOCK_SIZE 16
+#define AES_KEY aes_context
+#define MD5_CTX md5_context
+#define SHA_CTX sha1_context
+
+#define SHA1_Init( CTX ) \
+ sha1_starts( (CTX) )
+#define SHA1_Update( CTX, BUF, LEN ) \
+ sha1_update( (CTX), (unsigned char *)(BUF), (LEN) )
+#define SHA1_Final( OUT, CTX ) \
+ sha1_finish( (CTX), (OUT) )
+
+#define MD5_Init( CTX ) \
+ md5_starts( (CTX) )
+#define MD5_Update( CTX, BUF, LEN ) \
+ md5_update( (CTX), (unsigned char *)(BUF), (LEN) )
+#define MD5_Final( OUT, CTX ) \
+ md5_finish( (CTX), (OUT) )
+
+#define AES_set_encrypt_key( KEY, KEYSIZE, CTX ) \
+ aes_setkey_enc( (CTX), (KEY), (KEYSIZE) )
+#define AES_set_decrypt_key( KEY, KEYSIZE, CTX ) \
+ aes_setkey_dec( (CTX), (KEY), (KEYSIZE) )
+#define AES_cbc_encrypt( INPUT, OUTPUT, LEN, CTX, IV, MODE ) \
+ aes_crypt_cbc( (CTX), (MODE), (LEN), (IV), (INPUT), (OUTPUT) )
+
+/*
+ * RSA stuff follows. TODO: needs cleanup
+ */
+inline int __RSA_Passthrough( void *output, void *input, int size )
+{
+ memcpy( output, input, size );
+ return size;
+}
+
+inline rsa_context* d2i_RSA_PUBKEY( void *ignore, unsigned char **bufptr,
+ int len )
+{
+ unsigned char *buffer = *(unsigned char **) bufptr;
+ rsa_context *rsa;
+
+ /*
+ * Not a general-purpose parser: only parses public key from *exactly*
+ * openssl genrsa -out privkey.pem 512 (or 1024)
+ * openssl rsa -in privkey.pem -out privatekey.der -outform der
+ * openssl rsa -in privkey.pem -out pubkey.der -outform der -pubout
+ *
+ * TODO: make a general-purpose parse
+ */
+ if( ignore != 0 || ( len != 94 && len != 162 ) )
+ return( 0 );
+
+ rsa = (rsa_context *) malloc( sizeof( rsa_rsa ) );
+ if( rsa == NULL )
+ return( 0 );
+
+ memset( rsa, 0, sizeof( rsa_context ) );
+
+ if( ( len == 94 &&
+ mpi_read_binary( &rsa->N, &buffer[ 25], 64 ) == 0 &&
+ mpi_read_binary( &rsa->E, &buffer[ 91], 3 ) == 0 ) ||
+ ( len == 162 &&
+ mpi_read_binary( &rsa->N, &buffer[ 29], 128 ) == 0 ) &&
+ mpi_read_binary( &rsa->E, &buffer[159], 3 ) == 0 )
+ {
+ /*
+ * key read successfully
+ */
+ rsa->len = ( mpi_msb( &rsa->N ) + 7 ) >> 3;
+ return( rsa );
+ }
+ else
+ {
+ memset( rsa, 0, sizeof( rsa_context ) );
+ free( rsa );
+ return( 0 );
+ }
+}
+
+#define RSA rsa_context
+#define RSA_PKCS1_PADDING 1 /* ignored; always encrypt with this */
+#define RSA_size( CTX ) (CTX)->len
+#define RSA_free( CTX ) rsa_free( CTX )
+#define ERR_get_error( ) "ERR_get_error() not supported"
+#define RSA_blinding_off( IGNORE )
+
+#define d2i_RSAPrivateKey( a, b, c ) new rsa_context /* TODO: C++ bleh */
+
+inline int RSA_public_decrypt ( int size, unsigned char* input, unsigned char* output, RSA* key, int ignore ) { int outsize=size; if( !rsa_pkcs1_decrypt( key, RSA_PUBLIC, &outsize, input, output ) ) return outsize; else return -1; }
+inline int RSA_private_decrypt( int size, unsigned char* input, unsigned char* output, RSA* key, int ignore ) { int outsize=size; if( !rsa_pkcs1_decrypt( key, RSA_PRIVATE, &outsize, input, output ) ) return outsize; else return -1; }
+inline int RSA_public_encrypt ( int size, unsigned char* input, unsigned char* output, RSA* key, int ignore ) { if( !rsa_pkcs1_encrypt( key, RSA_PUBLIC, size, input, output ) ) return RSA_size(key); else return -1; }
+inline int RSA_private_encrypt( int size, unsigned char* input, unsigned char* output, RSA* key, int ignore ) { if( !rsa_pkcs1_encrypt( key, RSA_PRIVATE, size, input, output ) ) return RSA_size(key); else return -1; }
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* openssl.h */
--- /dev/null
+/**
+ * \file padlock.h
+ *
+ * \brief VIA PadLock ACE for HW encryption/decryption supported by some processors
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#ifndef POLARSSL_PADLOCK_H
+#define POLARSSL_PADLOCK_H
+
+#include "aes.h"
+
+#define POLARSSL_ERR_PADLOCK_DATA_MISALIGNED -0x0030 /**< Input data should be aligned. */
+
+#if defined(POLARSSL_HAVE_ASM) && defined(__GNUC__) && defined(__i386__)
+
+#ifndef POLARSSL_HAVE_X86
+#define POLARSSL_HAVE_X86
+#endif
+
+#define PADLOCK_RNG 0x000C
+#define PADLOCK_ACE 0x00C0
+#define PADLOCK_PHE 0x0C00
+#define PADLOCK_PMM 0x3000
+
+#define PADLOCK_ALIGN16(x) (unsigned long *) (16 + ((long) x & ~15))
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief PadLock detection routine
+ *
+ * \param The feature to detect
+ *
+ * \return 1 if CPU has support for the feature, 0 otherwise
+ */
+int padlock_supports( int feature );
+
+/**
+ * \brief PadLock AES-ECB block en(de)cryption
+ *
+ * \param ctx AES context
+ * \param mode AES_ENCRYPT or AES_DECRYPT
+ * \param input 16-byte input block
+ * \param output 16-byte output block
+ *
+ * \return 0 if success, 1 if operation failed
+ */
+int padlock_xcryptecb( aes_context *ctx,
+ int mode,
+ const unsigned char input[16],
+ unsigned char output[16] );
+
+/**
+ * \brief PadLock AES-CBC buffer en(de)cryption
+ *
+ * \param ctx AES context
+ * \param mode AES_ENCRYPT or AES_DECRYPT
+ * \param length length of the input data
+ * \param iv initialization vector (updated after use)
+ * \param input buffer holding the input data
+ * \param output buffer holding the output data
+ *
+ * \return 0 if success, 1 if operation failed
+ */
+int padlock_xcryptcbc( aes_context *ctx,
+ int mode,
+ size_t length,
+ unsigned char iv[16],
+ const unsigned char *input,
+ unsigned char *output );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* HAVE_X86 */
+
+#endif /* padlock.h */
--- /dev/null
+/**
+ * \file pem.h
+ *
+ * \brief Privacy Enhanced Mail (PEM) decoding
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#ifndef POLARSSL_PEM_H
+#define POLARSSL_PEM_H
+
+#include <string.h>
+
+/**
+ * \name PEM Error codes
+ * These error codes are returned in case of errors reading the
+ * PEM data.
+ * \{
+ */
+#define POLARSSL_ERR_PEM_NO_HEADER_PRESENT -0x1080 /**< No PEM header found. */
+#define POLARSSL_ERR_PEM_INVALID_DATA -0x1100 /**< PEM string is not as expected. */
+#define POLARSSL_ERR_PEM_MALLOC_FAILED -0x1180 /**< Failed to allocate memory. */
+#define POLARSSL_ERR_PEM_INVALID_ENC_IV -0x1200 /**< RSA IV is not in hex-format. */
+#define POLARSSL_ERR_PEM_UNKNOWN_ENC_ALG -0x1280 /**< Unsupported key encryption algorithm. */
+#define POLARSSL_ERR_PEM_PASSWORD_REQUIRED -0x1300 /**< Private key password can't be empty. */
+#define POLARSSL_ERR_PEM_PASSWORD_MISMATCH -0x1380 /**< Given private key password does not allow for correct decryption. */
+#define POLARSSL_ERR_PEM_FEATURE_UNAVAILABLE -0x1400 /**< Unavailable feature, e.g. hashing/encryption combination. */
+/* \} name */
+
+/**
+ * \brief PEM context structure
+ */
+typedef struct
+{
+ unsigned char *buf; /*!< buffer for decoded data */
+ size_t buflen; /*!< length of the buffer */
+ unsigned char *info; /*!< buffer for extra header information */
+}
+pem_context;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief PEM context setup
+ *
+ * \param ctx context to be initialized
+ */
+void pem_init( pem_context *ctx );
+
+/**
+ * \brief Read a buffer for PEM information and store the resulting
+ * data into the specified context buffers.
+ *
+ * \param ctx context to use
+ * \param header header string to seek and expect
+ * \param footer footer string to seek and expect
+ * \param data source data to look in
+ * \param pwd password for decryption (can be NULL)
+ * \param pwdlen length of password
+ * \param use_len destination for total length used
+ *
+ * \return 0 on success, ior a specific PEM error code
+ */
+int pem_read_buffer( pem_context *ctx, char *header, char *footer,
+ const unsigned char *data,
+ const unsigned char *pwd,
+ size_t pwdlen, size_t *use_len );
+
+/**
+ * \brief PEM context memory freeing
+ *
+ * \param ctx context to be freed
+ */
+void pem_free( pem_context *ctx );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* pem.h */
--- /dev/null
+/**
+ * \file pkcs11.h
+ *
+ * \brief Wrapper for PKCS#11 library libpkcs11-helper
+ *
+ * \author Adriaan de Jong <dejong@fox-it.com>
+ *
+ * Copyright (C) 2006-2011, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#ifndef POLARSSL_PKCS11_H
+#define POLARSSL_PKCS11_H
+
+#include "config.h"
+
+#if defined(POLARSSL_PKCS11_C)
+
+#include "x509.h"
+
+#include <pkcs11-helper-1.0/pkcs11h-certificate.h>
+
+/**
+ * Context for PKCS #11 private keys.
+ */
+typedef struct {
+ pkcs11h_certificate_t pkcs11h_cert;
+ int len;
+} pkcs11_context;
+
+/**
+ * Fill in a PolarSSL certificate, based on the given PKCS11 helper certificate.
+ *
+ * \param cert X.509 certificate to fill
+ * \param pkcs11h_cert PKCS #11 helper certificate
+ *
+ * \return 0 on success.
+ */
+int pkcs11_x509_cert_init( x509_cert *cert, pkcs11h_certificate_t pkcs11h_cert );
+
+/**
+ * Initialise a pkcs11_context, storing the given certificate. Note that the
+ * pkcs11_context will take over control of the certificate, freeing it when
+ * done.
+ *
+ * \param priv_key Private key structure to fill.
+ * \param pkcs11_cert PKCS #11 helper certificate
+ *
+ * \return 0 on success
+ */
+int pkcs11_priv_key_init( pkcs11_context *priv_key,
+ pkcs11h_certificate_t pkcs11_cert );
+
+/**
+ * Free the contents of the given private key context. Note that the structure
+ * itself is not freed.
+ *
+ * \param priv_key Private key structure to cleanup
+ */
+void pkcs11_priv_key_free( pkcs11_context *priv_key );
+
+/**
+ * \brief Do an RSA private key decrypt, then remove the message padding
+ *
+ * \param ctx PKCS #11 context
+ * \param mode must be RSA_PRIVATE, for compatibility with rsa.c's signature
+ * \param input buffer holding the encrypted data
+ * \param output buffer that will hold the plaintext
+ * \param olen will contain the plaintext length
+ * \param output_max_len maximum length of the output buffer
+ *
+ * \return 0 if successful, or an POLARSSL_ERR_RSA_XXX error code
+ *
+ * \note The output buffer must be as large as the size
+ * of ctx->N (eg. 128 bytes if RSA-1024 is used) otherwise
+ * an error is thrown.
+ */
+int pkcs11_decrypt( pkcs11_context *ctx,
+ int mode, size_t *olen,
+ const unsigned char *input,
+ unsigned char *output,
+ unsigned int output_max_len );
+
+/**
+ * \brief Do a private RSA to sign a message digest
+ *
+ * \param ctx PKCS #11 context
+ * \param mode must be RSA_PRIVATE, for compatibility with rsa.c's signature
+ * \param hash_id SIG_RSA_RAW, SIG_RSA_MD{2,4,5} or SIG_RSA_SHA{1,224,256,384,512}
+ * \param hashlen message digest length (for SIG_RSA_RAW only)
+ * \param hash buffer holding the message digest
+ * \param sig buffer that will hold the ciphertext
+ *
+ * \return 0 if the signing operation was successful,
+ * or an POLARSSL_ERR_RSA_XXX error code
+ *
+ * \note The "sig" buffer must be as large as the size
+ * of ctx->N (eg. 128 bytes if RSA-1024 is used).
+ */
+int pkcs11_sign( pkcs11_context *ctx,
+ int mode,
+ int hash_id,
+ unsigned int hashlen,
+ const unsigned char *hash,
+ unsigned char *sig );
+
+#endif /* POLARSSL_PKCS11_C */
+
+#endif /* POLARSSL_PKCS11_H */
--- /dev/null
+/**
+ * \file rsa.h
+ *
+ * \brief The RSA public-key cryptosystem
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#ifndef POLARSSL_RSA_H
+#define POLARSSL_RSA_H
+
+#include "bignum.h"
+
+/*
+ * RSA Error codes
+ */
+#define POLARSSL_ERR_RSA_BAD_INPUT_DATA -0x4080 /**< Bad input parameters to function. */
+#define POLARSSL_ERR_RSA_INVALID_PADDING -0x4100 /**< Input data contains invalid padding and is rejected. */
+#define POLARSSL_ERR_RSA_KEY_GEN_FAILED -0x4180 /**< Something failed during generation of a key. */
+#define POLARSSL_ERR_RSA_KEY_CHECK_FAILED -0x4200 /**< Key failed to pass the libraries validity check. */
+#define POLARSSL_ERR_RSA_PUBLIC_FAILED -0x4280 /**< The public key operation failed. */
+#define POLARSSL_ERR_RSA_PRIVATE_FAILED -0x4300 /**< The private key operation failed. */
+#define POLARSSL_ERR_RSA_VERIFY_FAILED -0x4380 /**< The PKCS#1 verification failed. */
+#define POLARSSL_ERR_RSA_OUTPUT_TOO_LARGE -0x4400 /**< The output buffer for decryption is not large enough. */
+#define POLARSSL_ERR_RSA_RNG_FAILED -0x4480 /**< The random generator failed to generate non-zeros. */
+
+/*
+ * PKCS#1 constants
+ */
+#define SIG_RSA_RAW 0
+#define SIG_RSA_MD2 2
+#define SIG_RSA_MD4 3
+#define SIG_RSA_MD5 4
+#define SIG_RSA_SHA1 5
+#define SIG_RSA_SHA224 14
+#define SIG_RSA_SHA256 11
+#define SIG_RSA_SHA384 12
+#define SIG_RSA_SHA512 13
+
+#define RSA_PUBLIC 0
+#define RSA_PRIVATE 1
+
+#define RSA_PKCS_V15 0
+#define RSA_PKCS_V21 1
+
+#define RSA_SIGN 1
+#define RSA_CRYPT 2
+
+#define ASN1_STR_CONSTRUCTED_SEQUENCE "\x30"
+#define ASN1_STR_NULL "\x05"
+#define ASN1_STR_OID "\x06"
+#define ASN1_STR_OCTET_STRING "\x04"
+
+#define OID_DIGEST_ALG_MDX "\x2A\x86\x48\x86\xF7\x0D\x02\x00"
+#define OID_HASH_ALG_SHA1 "\x2b\x0e\x03\x02\x1a"
+#define OID_HASH_ALG_SHA2X "\x60\x86\x48\x01\x65\x03\x04\x02\x00"
+
+#define OID_ISO_MEMBER_BODIES "\x2a"
+#define OID_ISO_IDENTIFIED_ORG "\x2b"
+
+/*
+ * ISO Member bodies OID parts
+ */
+#define OID_COUNTRY_US "\x86\x48"
+#define OID_RSA_DATA_SECURITY "\x86\xf7\x0d"
+
+/*
+ * ISO Identified organization OID parts
+ */
+#define OID_OIW_SECSIG_SHA1 "\x0e\x03\x02\x1a"
+
+/*
+ * DigestInfo ::= SEQUENCE {
+ * digestAlgorithm DigestAlgorithmIdentifier,
+ * digest Digest }
+ *
+ * DigestAlgorithmIdentifier ::= AlgorithmIdentifier
+ *
+ * Digest ::= OCTET STRING
+ */
+#define ASN1_HASH_MDX \
+( \
+ ASN1_STR_CONSTRUCTED_SEQUENCE "\x20" \
+ ASN1_STR_CONSTRUCTED_SEQUENCE "\x0C" \
+ ASN1_STR_OID "\x08" \
+ OID_DIGEST_ALG_MDX \
+ ASN1_STR_NULL "\x00" \
+ ASN1_STR_OCTET_STRING "\x10" \
+)
+
+#define ASN1_HASH_SHA1 \
+ ASN1_STR_CONSTRUCTED_SEQUENCE "\x21" \
+ ASN1_STR_CONSTRUCTED_SEQUENCE "\x09" \
+ ASN1_STR_OID "\x05" \
+ OID_HASH_ALG_SHA1 \
+ ASN1_STR_NULL "\x00" \
+ ASN1_STR_OCTET_STRING "\x14"
+
+#define ASN1_HASH_SHA2X \
+ ASN1_STR_CONSTRUCTED_SEQUENCE "\x11" \
+ ASN1_STR_CONSTRUCTED_SEQUENCE "\x0d" \
+ ASN1_STR_OID "\x09" \
+ OID_HASH_ALG_SHA2X \
+ ASN1_STR_NULL "\x00" \
+ ASN1_STR_OCTET_STRING "\x00"
+
+/**
+ * \brief RSA context structure
+ */
+typedef struct
+{
+ int ver; /*!< always 0 */
+ size_t len; /*!< size(N) in chars */
+
+ mpi N; /*!< public modulus */
+ mpi E; /*!< public exponent */
+
+ mpi D; /*!< private exponent */
+ mpi P; /*!< 1st prime factor */
+ mpi Q; /*!< 2nd prime factor */
+ mpi DP; /*!< D % (P - 1) */
+ mpi DQ; /*!< D % (Q - 1) */
+ mpi QP; /*!< 1 / (Q % P) */
+
+ mpi RN; /*!< cached R^2 mod N */
+ mpi RP; /*!< cached R^2 mod P */
+ mpi RQ; /*!< cached R^2 mod Q */
+
+ int padding; /*!< RSA_PKCS_V15 for 1.5 padding and
+ RSA_PKCS_v21 for OAEP/PSS */
+ int hash_id; /*!< Hash identifier of md_type_t as
+ specified in the md.h header file
+ for the EME-OAEP and EMSA-PSS
+ encoding */
+}
+rsa_context;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief Initialize an RSA context
+ *
+ * \param ctx RSA context to be initialized
+ * \param padding RSA_PKCS_V15 or RSA_PKCS_V21
+ * \param hash_id RSA_PKCS_V21 hash identifier
+ *
+ * \note The hash_id parameter is actually ignored
+ * when using RSA_PKCS_V15 padding.
+ */
+void rsa_init( rsa_context *ctx,
+ int padding,
+ int hash_id);
+
+/**
+ * \brief Generate an RSA keypair
+ *
+ * \param ctx RSA context that will hold the key
+ * \param f_rng RNG function
+ * \param p_rng RNG parameter
+ * \param nbits size of the public key in bits
+ * \param exponent public exponent (e.g., 65537)
+ *
+ * \note rsa_init() must be called beforehand to setup
+ * the RSA context.
+ *
+ * \return 0 if successful, or an POLARSSL_ERR_RSA_XXX error code
+ */
+int rsa_gen_key( rsa_context *ctx,
+ int (*f_rng)(void *, unsigned char *, size_t),
+ void *p_rng,
+ unsigned int nbits, int exponent );
+
+/**
+ * \brief Check a public RSA key
+ *
+ * \param ctx RSA context to be checked
+ *
+ * \return 0 if successful, or an POLARSSL_ERR_RSA_XXX error code
+ */
+int rsa_check_pubkey( const rsa_context *ctx );
+
+/**
+ * \brief Check a private RSA key
+ *
+ * \param ctx RSA context to be checked
+ *
+ * \return 0 if successful, or an POLARSSL_ERR_RSA_XXX error code
+ */
+int rsa_check_privkey( const rsa_context *ctx );
+
+/**
+ * \brief Do an RSA public key operation
+ *
+ * \param ctx RSA context
+ * \param input input buffer
+ * \param output output buffer
+ *
+ * \return 0 if successful, or an POLARSSL_ERR_RSA_XXX error code
+ *
+ * \note This function does NOT take care of message
+ * padding. Also, be sure to set input[0] = 0 or assure that
+ * input is smaller than N.
+ *
+ * \note The input and output buffers must be large
+ * enough (eg. 128 bytes if RSA-1024 is used).
+ */
+int rsa_public( rsa_context *ctx,
+ const unsigned char *input,
+ unsigned char *output );
+
+/**
+ * \brief Do an RSA private key operation
+ *
+ * \param ctx RSA context
+ * \param input input buffer
+ * \param output output buffer
+ *
+ * \return 0 if successful, or an POLARSSL_ERR_RSA_XXX error code
+ *
+ * \note The input and output buffers must be large
+ * enough (eg. 128 bytes if RSA-1024 is used).
+ */
+int rsa_private( rsa_context *ctx,
+ const unsigned char *input,
+ unsigned char *output );
+
+/**
+ * \brief Add the message padding, then do an RSA operation
+ *
+ * \param ctx RSA context
+ * \param f_rng RNG function (Needed for padding and PKCS#1 v2.1 encoding)
+ * \param p_rng RNG parameter
+ * \param mode RSA_PUBLIC or RSA_PRIVATE
+ * \param ilen contains the plaintext length
+ * \param input buffer holding the data to be encrypted
+ * \param output buffer that will hold the ciphertext
+ *
+ * \return 0 if successful, or an POLARSSL_ERR_RSA_XXX error code
+ *
+ * \note The output buffer must be as large as the size
+ * of ctx->N (eg. 128 bytes if RSA-1024 is used).
+ */
+int rsa_pkcs1_encrypt( rsa_context *ctx,
+ int (*f_rng)(void *, unsigned char *, size_t),
+ void *p_rng,
+ int mode, size_t ilen,
+ const unsigned char *input,
+ unsigned char *output );
+
+/**
+ * \brief Do an RSA operation, then remove the message padding
+ *
+ * \param ctx RSA context
+ * \param mode RSA_PUBLIC or RSA_PRIVATE
+ * \param olen will contain the plaintext length
+ * \param input buffer holding the encrypted data
+ * \param output buffer that will hold the plaintext
+ * \param output_max_len maximum length of the output buffer
+ *
+ * \return 0 if successful, or an POLARSSL_ERR_RSA_XXX error code
+ *
+ * \note The output buffer must be as large as the size
+ * of ctx->N (eg. 128 bytes if RSA-1024 is used) otherwise
+ * an error is thrown.
+ */
+int rsa_pkcs1_decrypt( rsa_context *ctx,
+ int mode, size_t *olen,
+ const unsigned char *input,
+ unsigned char *output,
+ size_t output_max_len );
+
+/**
+ * \brief Do a private RSA to sign a message digest
+ *
+ * \param ctx RSA context
+ * \param f_rng RNG function (Needed for PKCS#1 v2.1 encoding)
+ * \param p_rng RNG parameter
+ * \param mode RSA_PUBLIC or RSA_PRIVATE
+ * \param hash_id SIG_RSA_RAW, SIG_RSA_MD{2,4,5} or SIG_RSA_SHA{1,224,256,384,512}
+ * \param hashlen message digest length (for SIG_RSA_RAW only)
+ * \param hash buffer holding the message digest
+ * \param sig buffer that will hold the ciphertext
+ *
+ * \return 0 if the signing operation was successful,
+ * or an POLARSSL_ERR_RSA_XXX error code
+ *
+ * \note The "sig" buffer must be as large as the size
+ * of ctx->N (eg. 128 bytes if RSA-1024 is used).
+ *
+ * \note In case of PKCS#1 v2.1 encoding keep in mind that
+ * the hash_id in the RSA context is the one used for the
+ * encoding. hash_id in the function call is the type of hash
+ * that is encoded. According to RFC 3447 it is advised to
+ * keep both hashes the same.
+ */
+int rsa_pkcs1_sign( rsa_context *ctx,
+ int (*f_rng)(void *, unsigned char *, size_t),
+ void *p_rng,
+ int mode,
+ int hash_id,
+ unsigned int hashlen,
+ const unsigned char *hash,
+ unsigned char *sig );
+
+/**
+ * \brief Do a public RSA and check the message digest
+ *
+ * \param ctx points to an RSA public key
+ * \param mode RSA_PUBLIC or RSA_PRIVATE
+ * \param hash_id SIG_RSA_RAW, SIG_RSA_MD{2,4,5} or SIG_RSA_SHA{1,224,256,384,512}
+ * \param hashlen message digest length (for SIG_RSA_RAW only)
+ * \param hash buffer holding the message digest
+ * \param sig buffer holding the ciphertext
+ *
+ * \return 0 if the verify operation was successful,
+ * or an POLARSSL_ERR_RSA_XXX error code
+ *
+ * \note The "sig" buffer must be as large as the size
+ * of ctx->N (eg. 128 bytes if RSA-1024 is used).
+ *
+ * \note In case of PKCS#1 v2.1 encoding keep in mind that
+ * the hash_id in the RSA context is the one used for the
+ * verification. hash_id in the function call is the type of hash
+ * that is verified. According to RFC 3447 it is advised to
+ * keep both hashes the same.
+ */
+int rsa_pkcs1_verify( rsa_context *ctx,
+ int mode,
+ int hash_id,
+ unsigned int hashlen,
+ const unsigned char *hash,
+ unsigned char *sig );
+
+/**
+ * \brief Free the components of an RSA key
+ *
+ * \param ctx RSA Context to free
+ */
+void rsa_free( rsa_context *ctx );
+
+/**
+ * \brief Checkup routine
+ *
+ * \return 0 if successful, or 1 if the test failed
+ */
+int rsa_self_test( int verbose );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* rsa.h */
--- /dev/null
+/**
+ * \file sha1.h
+ *
+ * \brief SHA-1 cryptographic hash function
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#ifndef POLARSSL_SHA1_H
+#define POLARSSL_SHA1_H
+
+#include <string.h>
+
+#define POLARSSL_ERR_SHA1_FILE_IO_ERROR -0x0076 /**< Read/write error in file. */
+
+/**
+ * \brief SHA-1 context structure
+ */
+typedef struct
+{
+ unsigned long total[2]; /*!< number of bytes processed */
+ unsigned long state[5]; /*!< intermediate digest state */
+ unsigned char buffer[64]; /*!< data block being processed */
+
+ unsigned char ipad[64]; /*!< HMAC: inner padding */
+ unsigned char opad[64]; /*!< HMAC: outer padding */
+}
+sha1_context;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief SHA-1 context setup
+ *
+ * \param ctx context to be initialized
+ */
+void sha1_starts( sha1_context *ctx );
+
+/**
+ * \brief SHA-1 process buffer
+ *
+ * \param ctx SHA-1 context
+ * \param input buffer holding the data
+ * \param ilen length of the input data
+ */
+void sha1_update( sha1_context *ctx, const unsigned char *input, size_t ilen );
+
+/**
+ * \brief SHA-1 final digest
+ *
+ * \param ctx SHA-1 context
+ * \param output SHA-1 checksum result
+ */
+void sha1_finish( sha1_context *ctx, unsigned char output[20] );
+
+/**
+ * \brief Output = SHA-1( input buffer )
+ *
+ * \param input buffer holding the data
+ * \param ilen length of the input data
+ * \param output SHA-1 checksum result
+ */
+void sha1( const unsigned char *input, size_t ilen, unsigned char output[20] );
+
+/**
+ * \brief Output = SHA-1( file contents )
+ *
+ * \param path input file name
+ * \param output SHA-1 checksum result
+ *
+ * \return 0 if successful, or POLARSSL_ERR_SHA1_FILE_IO_ERROR
+ */
+int sha1_file( const char *path, unsigned char output[20] );
+
+/**
+ * \brief SHA-1 HMAC context setup
+ *
+ * \param ctx HMAC context to be initialized
+ * \param key HMAC secret key
+ * \param keylen length of the HMAC key
+ */
+void sha1_hmac_starts( sha1_context *ctx, const unsigned char *key, size_t keylen );
+
+/**
+ * \brief SHA-1 HMAC process buffer
+ *
+ * \param ctx HMAC context
+ * \param input buffer holding the data
+ * \param ilen length of the input data
+ */
+void sha1_hmac_update( sha1_context *ctx, const unsigned char *input, size_t ilen );
+
+/**
+ * \brief SHA-1 HMAC final digest
+ *
+ * \param ctx HMAC context
+ * \param output SHA-1 HMAC checksum result
+ */
+void sha1_hmac_finish( sha1_context *ctx, unsigned char output[20] );
+
+/**
+ * \brief SHA-1 HMAC context reset
+ *
+ * \param ctx HMAC context to be reset
+ */
+void sha1_hmac_reset( sha1_context *ctx );
+
+/**
+ * \brief Output = HMAC-SHA-1( hmac key, input buffer )
+ *
+ * \param key HMAC secret key
+ * \param keylen length of the HMAC key
+ * \param input buffer holding the data
+ * \param ilen length of the input data
+ * \param output HMAC-SHA-1 result
+ */
+void sha1_hmac( const unsigned char *key, size_t keylen,
+ const unsigned char *input, size_t ilen,
+ unsigned char output[20] );
+
+/**
+ * \brief Checkup routine
+ *
+ * \return 0 if successful, or 1 if the test failed
+ */
+int sha1_self_test( int verbose );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* sha1.h */
--- /dev/null
+/**
+ * \file sha2.h
+ *
+ * \brief SHA-224 and SHA-256 cryptographic hash function
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#ifndef POLARSSL_SHA2_H
+#define POLARSSL_SHA2_H
+
+#include <string.h>
+
+#define POLARSSL_ERR_SHA2_FILE_IO_ERROR -0x0078 /**< Read/write error in file. */
+
+/**
+ * \brief SHA-256 context structure
+ */
+typedef struct
+{
+ unsigned long total[2]; /*!< number of bytes processed */
+ unsigned long state[8]; /*!< intermediate digest state */
+ unsigned char buffer[64]; /*!< data block being processed */
+
+ unsigned char ipad[64]; /*!< HMAC: inner padding */
+ unsigned char opad[64]; /*!< HMAC: outer padding */
+ int is224; /*!< 0 => SHA-256, else SHA-224 */
+}
+sha2_context;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief SHA-256 context setup
+ *
+ * \param ctx context to be initialized
+ * \param is224 0 = use SHA256, 1 = use SHA224
+ */
+void sha2_starts( sha2_context *ctx, int is224 );
+
+/**
+ * \brief SHA-256 process buffer
+ *
+ * \param ctx SHA-256 context
+ * \param input buffer holding the data
+ * \param ilen length of the input data
+ */
+void sha2_update( sha2_context *ctx, const unsigned char *input, size_t ilen );
+
+/**
+ * \brief SHA-256 final digest
+ *
+ * \param ctx SHA-256 context
+ * \param output SHA-224/256 checksum result
+ */
+void sha2_finish( sha2_context *ctx, unsigned char output[32] );
+
+/**
+ * \brief Output = SHA-256( input buffer )
+ *
+ * \param input buffer holding the data
+ * \param ilen length of the input data
+ * \param output SHA-224/256 checksum result
+ * \param is224 0 = use SHA256, 1 = use SHA224
+ */
+void sha2( const unsigned char *input, size_t ilen,
+ unsigned char output[32], int is224 );
+
+/**
+ * \brief Output = SHA-256( file contents )
+ *
+ * \param path input file name
+ * \param output SHA-224/256 checksum result
+ * \param is224 0 = use SHA256, 1 = use SHA224
+ *
+ * \return 0 if successful, or POLARSSL_ERR_SHA2_FILE_IO_ERROR
+ */
+int sha2_file( const char *path, unsigned char output[32], int is224 );
+
+/**
+ * \brief SHA-256 HMAC context setup
+ *
+ * \param ctx HMAC context to be initialized
+ * \param key HMAC secret key
+ * \param keylen length of the HMAC key
+ * \param is224 0 = use SHA256, 1 = use SHA224
+ */
+void sha2_hmac_starts( sha2_context *ctx, const unsigned char *key, size_t keylen,
+ int is224 );
+
+/**
+ * \brief SHA-256 HMAC process buffer
+ *
+ * \param ctx HMAC context
+ * \param input buffer holding the data
+ * \param ilen length of the input data
+ */
+void sha2_hmac_update( sha2_context *ctx, const unsigned char *input, size_t ilen );
+
+/**
+ * \brief SHA-256 HMAC final digest
+ *
+ * \param ctx HMAC context
+ * \param output SHA-224/256 HMAC checksum result
+ */
+void sha2_hmac_finish( sha2_context *ctx, unsigned char output[32] );
+
+/**
+ * \brief SHA-256 HMAC context reset
+ *
+ * \param ctx HMAC context to be reset
+ */
+void sha2_hmac_reset( sha2_context *ctx );
+
+/**
+ * \brief Output = HMAC-SHA-256( hmac key, input buffer )
+ *
+ * \param key HMAC secret key
+ * \param keylen length of the HMAC key
+ * \param input buffer holding the data
+ * \param ilen length of the input data
+ * \param output HMAC-SHA-224/256 result
+ * \param is224 0 = use SHA256, 1 = use SHA224
+ */
+void sha2_hmac( const unsigned char *key, size_t keylen,
+ const unsigned char *input, size_t ilen,
+ unsigned char output[32], int is224 );
+
+/**
+ * \brief Checkup routine
+ *
+ * \return 0 if successful, or 1 if the test failed
+ */
+int sha2_self_test( int verbose );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* sha2.h */
--- /dev/null
+/**
+ * \file sha4.h
+ *
+ * \brief SHA-384 and SHA-512 cryptographic hash function
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#ifndef POLARSSL_SHA4_H
+#define POLARSSL_SHA4_H
+
+#include <string.h>
+
+#define POLARSSL_ERR_SHA4_FILE_IO_ERROR -0x007A /**< Read/write error in file. */
+
+#if defined(_MSC_VER) || defined(__WATCOMC__)
+ #define UL64(x) x##ui64
+ #define long64 __int64
+#else
+ #define UL64(x) x##ULL
+ #define long64 long long
+#endif
+
+/**
+ * \brief SHA-512 context structure
+ */
+typedef struct
+{
+ unsigned long64 total[2]; /*!< number of bytes processed */
+ unsigned long64 state[8]; /*!< intermediate digest state */
+ unsigned char buffer[128]; /*!< data block being processed */
+
+ unsigned char ipad[128]; /*!< HMAC: inner padding */
+ unsigned char opad[128]; /*!< HMAC: outer padding */
+ int is384; /*!< 0 => SHA-512, else SHA-384 */
+}
+sha4_context;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief SHA-512 context setup
+ *
+ * \param ctx context to be initialized
+ * \param is384 0 = use SHA512, 1 = use SHA384
+ */
+void sha4_starts( sha4_context *ctx, int is384 );
+
+/**
+ * \brief SHA-512 process buffer
+ *
+ * \param ctx SHA-512 context
+ * \param input buffer holding the data
+ * \param ilen length of the input data
+ */
+void sha4_update( sha4_context *ctx, const unsigned char *input, size_t ilen );
+
+/**
+ * \brief SHA-512 final digest
+ *
+ * \param ctx SHA-512 context
+ * \param output SHA-384/512 checksum result
+ */
+void sha4_finish( sha4_context *ctx, unsigned char output[64] );
+
+/**
+ * \brief Output = SHA-512( input buffer )
+ *
+ * \param input buffer holding the data
+ * \param ilen length of the input data
+ * \param output SHA-384/512 checksum result
+ * \param is384 0 = use SHA512, 1 = use SHA384
+ */
+void sha4( const unsigned char *input, size_t ilen,
+ unsigned char output[64], int is384 );
+
+/**
+ * \brief Output = SHA-512( file contents )
+ *
+ * \param path input file name
+ * \param output SHA-384/512 checksum result
+ * \param is384 0 = use SHA512, 1 = use SHA384
+ *
+ * \return 0 if successful, or POLARSSL_ERR_SHA4_FILE_IO_ERROR
+ */
+int sha4_file( const char *path, unsigned char output[64], int is384 );
+
+/**
+ * \brief SHA-512 HMAC context setup
+ *
+ * \param ctx HMAC context to be initialized
+ * \param is384 0 = use SHA512, 1 = use SHA384
+ * \param key HMAC secret key
+ * \param keylen length of the HMAC key
+ */
+void sha4_hmac_starts( sha4_context *ctx, const unsigned char *key, size_t keylen,
+ int is384 );
+
+/**
+ * \brief SHA-512 HMAC process buffer
+ *
+ * \param ctx HMAC context
+ * \param input buffer holding the data
+ * \param ilen length of the input data
+ */
+void sha4_hmac_update( sha4_context *ctx, const unsigned char *input, size_t ilen );
+
+/**
+ * \brief SHA-512 HMAC final digest
+ *
+ * \param ctx HMAC context
+ * \param output SHA-384/512 HMAC checksum result
+ */
+void sha4_hmac_finish( sha4_context *ctx, unsigned char output[64] );
+
+/**
+ * \brief SHA-512 HMAC context reset
+ *
+ * \param ctx HMAC context to be reset
+ */
+void sha4_hmac_reset( sha4_context *ctx );
+
+/**
+ * \brief Output = HMAC-SHA-512( hmac key, input buffer )
+ *
+ * \param key HMAC secret key
+ * \param keylen length of the HMAC key
+ * \param input buffer holding the data
+ * \param ilen length of the input data
+ * \param output HMAC-SHA-384/512 result
+ * \param is384 0 = use SHA512, 1 = use SHA384
+ */
+void sha4_hmac( const unsigned char *key, size_t keylen,
+ const unsigned char *input, size_t ilen,
+ unsigned char output[64], int is384 );
+
+/**
+ * \brief Checkup routine
+ *
+ * \return 0 if successful, or 1 if the test failed
+ */
+int sha4_self_test( int verbose );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* sha4.h */
--- /dev/null
+/**
+ * \file ssl.h
+ *
+ * \brief SSL/TLS functions.
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#ifndef POLARSSL_SSL_H
+#define POLARSSL_SSL_H
+
+#include <time.h>
+
+#include "net.h"
+#include "dhm.h"
+#include "rsa.h"
+#include "md5.h"
+#include "sha1.h"
+#include "x509.h"
+#include "config.h"
+
+#if defined(POLARSSL_PKCS11_C)
+#include "pkcs11.h"
+#endif
+
+#if defined(_MSC_VER) && !defined(inline)
+#define inline _inline
+#else
+#if defined(__ARMCC_VERSION) && !defined(inline)
+#define inline __inline
+#endif /* __ARMCC_VERSION */
+#endif /*_MSC_VER */
+
+/*
+ * SSL Error codes
+ */
+#define POLARSSL_ERR_SSL_FEATURE_UNAVAILABLE -0x7080 /**< The requested feature is not available. */
+#define POLARSSL_ERR_SSL_BAD_INPUT_DATA -0x7100 /**< Bad input parameters to function. */
+#define POLARSSL_ERR_SSL_INVALID_MAC -0x7180 /**< Verification of the message MAC failed. */
+#define POLARSSL_ERR_SSL_INVALID_RECORD -0x7200 /**< An invalid SSL record was received. */
+#define POLARSSL_ERR_SSL_CONN_EOF -0x7280 /**< The connection indicated an EOF. */
+#define POLARSSL_ERR_SSL_UNKNOWN_CIPHER -0x7300 /**< An unknown cipher was received. */
+#define POLARSSL_ERR_SSL_NO_CIPHER_CHOSEN -0x7380 /**< The server has no ciphersuites in common with the client. */
+#define POLARSSL_ERR_SSL_NO_SESSION_FOUND -0x7400 /**< No session to recover was found. */
+#define POLARSSL_ERR_SSL_NO_CLIENT_CERTIFICATE -0x7480 /**< No client certification received from the client, but required by the authentication mode. */
+#define POLARSSL_ERR_SSL_CERTIFICATE_TOO_LARGE -0x7500 /**< Our own certificate(s) is/are too large to send in an SSL message.*/
+#define POLARSSL_ERR_SSL_CERTIFICATE_REQUIRED -0x7580 /**< The own certificate is not set, but needed by the server. */
+#define POLARSSL_ERR_SSL_PRIVATE_KEY_REQUIRED -0x7600 /**< The own private key is not set, but needed. */
+#define POLARSSL_ERR_SSL_CA_CHAIN_REQUIRED -0x7680 /**< No CA Chain is set, but required to operate. */
+#define POLARSSL_ERR_SSL_UNEXPECTED_MESSAGE -0x7700 /**< An unexpected message was received from our peer. */
+#define POLARSSL_ERR_SSL_FATAL_ALERT_MESSAGE -0x7780 /**< A fatal alert message was received from our peer. */
+#define POLARSSL_ERR_SSL_PEER_VERIFY_FAILED -0x7800 /**< Verification of our peer failed. */
+#define POLARSSL_ERR_SSL_PEER_CLOSE_NOTIFY -0x7880 /**< The peer notified us that the connection is going to be closed. */
+#define POLARSSL_ERR_SSL_BAD_HS_CLIENT_HELLO -0x7900 /**< Processing of the ClientHello handshake message failed. */
+#define POLARSSL_ERR_SSL_BAD_HS_SERVER_HELLO -0x7980 /**< Processing of the ServerHello handshake message failed. */
+#define POLARSSL_ERR_SSL_BAD_HS_CERTIFICATE -0x7A00 /**< Processing of the Certificate handshake message failed. */
+#define POLARSSL_ERR_SSL_BAD_HS_CERTIFICATE_REQUEST -0x7A80 /**< Processing of the CertificateRequest handshake message failed. */
+#define POLARSSL_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE -0x7B00 /**< Processing of the ServerKeyExchange handshake message failed. */
+#define POLARSSL_ERR_SSL_BAD_HS_SERVER_HELLO_DONE -0x7B80 /**< Processing of the ServerHelloDone handshake message failed. */
+#define POLARSSL_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE -0x7C00 /**< Processing of the ClientKeyExchange handshake message failed. */
+#define POLARSSL_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_DHM_RP -0x7C80 /**< Processing of the ClientKeyExchange handshake message failed in DHM Read Public. */
+#define POLARSSL_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_DHM_CS -0x7D00 /**< Processing of the ClientKeyExchange handshake message failed in DHM Calculate Secret. */
+#define POLARSSL_ERR_SSL_BAD_HS_CERTIFICATE_VERIFY -0x7D80 /**< Processing of the CertificateVerify handshake message failed. */
+#define POLARSSL_ERR_SSL_BAD_HS_CHANGE_CIPHER_SPEC -0x7E00 /**< Processing of the ChangeCipherSpec handshake message failed. */
+#define POLARSSL_ERR_SSL_BAD_HS_FINISHED -0x7E80 /**< Processing of the Finished handshake message failed. */
+#define POLARSSL_ERR_SSL_MALLOC_FAILED -0x7F00 /**< Memory allocation failed */
+
+/*
+ * Various constants
+ */
+#define SSL_MAJOR_VERSION_3 3
+#define SSL_MINOR_VERSION_0 0 /*!< SSL v3.0 */
+#define SSL_MINOR_VERSION_1 1 /*!< TLS v1.0 */
+#define SSL_MINOR_VERSION_2 2 /*!< TLS v1.1 */
+
+#define SSL_IS_CLIENT 0
+#define SSL_IS_SERVER 1
+#define SSL_COMPRESS_NULL 0
+
+#define SSL_VERIFY_NONE 0
+#define SSL_VERIFY_OPTIONAL 1
+#define SSL_VERIFY_REQUIRED 2
+
+#define SSL_MAX_CONTENT_LEN 16384
+
+/*
+ * Allow an extra 512 bytes for the record header
+ * and encryption overhead (counter + MAC + padding).
+ */
+#define SSL_BUFFER_LEN (SSL_MAX_CONTENT_LEN + 512)
+
+/*
+ * Supported ciphersuites
+ */
+#define SSL_RSA_RC4_128_MD5 0x04
+#define SSL_RSA_RC4_128_SHA 0x05
+#define SSL_RSA_DES_168_SHA 0x0A
+#define SSL_EDH_RSA_DES_168_SHA 0x16
+#define SSL_RSA_AES_128_SHA 0x2F
+#define SSL_EDH_RSA_AES_128_SHA 0x33
+#define SSL_RSA_AES_256_SHA 0x35
+#define SSL_EDH_RSA_AES_256_SHA 0x39
+
+#define SSL_RSA_CAMELLIA_128_SHA 0x41
+#define SSL_EDH_RSA_CAMELLIA_128_SHA 0x45
+#define SSL_RSA_CAMELLIA_256_SHA 0x84
+#define SSL_EDH_RSA_CAMELLIA_256_SHA 0x88
+
+/*
+ * Message, alert and handshake types
+ */
+#define SSL_MSG_CHANGE_CIPHER_SPEC 20
+#define SSL_MSG_ALERT 21
+#define SSL_MSG_HANDSHAKE 22
+#define SSL_MSG_APPLICATION_DATA 23
+
+#define SSL_ALERT_LEVEL_WARNING 1
+#define SSL_ALERT_LEVEL_FATAL 2
+
+#define SSL_ALERT_MSG_CLOSE_NOTIFY 0
+#define SSL_ALERT_MSG_UNEXPECTED_MESSAGE 10
+#define SSL_ALERT_MSG_BAD_RECORD_MAC 20
+#define SSL_ALERT_MSG_DECRYPTION_FAILED 21
+#define SSL_ALERT_MSG_RECORD_OVERFLOW 22
+#define SSL_ALERT_MSG_DECOMPRESSION_FAILURE 30
+#define SSL_ALERT_MSG_HANDSHAKE_FAILURE 40
+#define SSL_ALERT_MSG_NO_CERT 41
+#define SSL_ALERT_MSG_BAD_CERT 42
+#define SSL_ALERT_MSG_UNSUPPORTED_CERT 43
+#define SSL_ALERT_MSG_CERT_REVOKED 44
+#define SSL_ALERT_MSG_CERT_EXPIRED 45
+#define SSL_ALERT_MSG_CERT_UNKNOWN 46
+#define SSL_ALERT_MSG_ILLEGAL_PARAMETER 47
+#define SSL_ALERT_MSG_UNKNOWN_CA 48
+#define SSL_ALERT_MSG_ACCESS_DENIED 49
+#define SSL_ALERT_MSG_DECODE_ERROR 50
+#define SSL_ALERT_MSG_DECRYPT_ERROR 51
+#define SSL_ALERT_MSG_EXPORT_RESTRICTION 60
+#define SSL_ALERT_MSG_PROTOCOL_VERSION 70
+#define SSL_ALERT_MSG_INSUFFICIENT_SECURITY 71
+#define SSL_ALERT_MSG_INTERNAL_ERROR 80
+#define SSL_ALERT_MSG_USER_CANCELED 90
+#define SSL_ALERT_MSG_NO_RENEGOTIATION 100
+
+#define SSL_HS_HELLO_REQUEST 0
+#define SSL_HS_CLIENT_HELLO 1
+#define SSL_HS_SERVER_HELLO 2
+#define SSL_HS_CERTIFICATE 11
+#define SSL_HS_SERVER_KEY_EXCHANGE 12
+#define SSL_HS_CERTIFICATE_REQUEST 13
+#define SSL_HS_SERVER_HELLO_DONE 14
+#define SSL_HS_CERTIFICATE_VERIFY 15
+#define SSL_HS_CLIENT_KEY_EXCHANGE 16
+#define SSL_HS_FINISHED 20
+
+/*
+ * TLS extensions
+ */
+#define TLS_EXT_SERVERNAME 0
+#define TLS_EXT_SERVERNAME_HOSTNAME 0
+
+/*
+ * SSL state machine
+ */
+typedef enum
+{
+ SSL_HELLO_REQUEST,
+ SSL_CLIENT_HELLO,
+ SSL_SERVER_HELLO,
+ SSL_SERVER_CERTIFICATE,
+ SSL_SERVER_KEY_EXCHANGE,
+ SSL_CERTIFICATE_REQUEST,
+ SSL_SERVER_HELLO_DONE,
+ SSL_CLIENT_CERTIFICATE,
+ SSL_CLIENT_KEY_EXCHANGE,
+ SSL_CERTIFICATE_VERIFY,
+ SSL_CLIENT_CHANGE_CIPHER_SPEC,
+ SSL_CLIENT_FINISHED,
+ SSL_SERVER_CHANGE_CIPHER_SPEC,
+ SSL_SERVER_FINISHED,
+ SSL_FLUSH_BUFFERS,
+ SSL_HANDSHAKE_OVER
+}
+ssl_states;
+
+typedef struct _ssl_session ssl_session;
+typedef struct _ssl_context ssl_context;
+
+/*
+ * This structure is used for session resuming.
+ */
+struct _ssl_session
+{
+ time_t start; /*!< starting time */
+ int ciphersuite; /*!< chosen ciphersuite */
+ size_t length; /*!< session id length */
+ unsigned char id[32]; /*!< session identifier */
+ unsigned char master[48]; /*!< the master secret */
+ ssl_session *next; /*!< next session entry */
+};
+
+struct _ssl_context
+{
+ /*
+ * Miscellaneous
+ */
+ int state; /*!< SSL handshake: current state */
+
+ int major_ver; /*!< equal to SSL_MAJOR_VERSION_3 */
+ int minor_ver; /*!< either 0 (SSL3) or 1 (TLS1.0) */
+
+ int max_major_ver; /*!< max. major version from client */
+ int max_minor_ver; /*!< max. minor version from client */
+
+ /*
+ * Callbacks (RNG, debug, I/O, verification)
+ */
+ int (*f_rng)(void *, unsigned char *, size_t);
+ void (*f_dbg)(void *, int, const char *);
+ int (*f_recv)(void *, unsigned char *, size_t);
+ int (*f_send)(void *, const unsigned char *, size_t);
+ int (*f_vrfy)(void *, x509_cert *, int, int);
+
+ void *p_rng; /*!< context for the RNG function */
+ void *p_dbg; /*!< context for the debug function */
+ void *p_recv; /*!< context for reading operations */
+ void *p_send; /*!< context for writing operations */
+ void *p_vrfy; /*!< context for verification */
+
+ /*
+ * Session layer
+ */
+ int resume; /*!< session resuming flag */
+ int timeout; /*!< sess. expiration time */
+ ssl_session *session; /*!< current session data */
+ int (*s_get)(ssl_context *); /*!< (server) get callback */
+ int (*s_set)(ssl_context *); /*!< (server) set callback */
+
+ /*
+ * Record layer (incoming data)
+ */
+ unsigned char *in_ctr; /*!< 64-bit incoming message counter */
+ unsigned char *in_hdr; /*!< 5-byte record header (in_ctr+8) */
+ unsigned char *in_msg; /*!< the message contents (in_hdr+5) */
+ unsigned char *in_offt; /*!< read offset in application data */
+
+ int in_msgtype; /*!< record header: message type */
+ size_t in_msglen; /*!< record header: message length */
+ size_t in_left; /*!< amount of data read so far */
+
+ size_t in_hslen; /*!< current handshake message length */
+ int nb_zero; /*!< # of 0-length encrypted messages */
+
+ /*
+ * Record layer (outgoing data)
+ */
+ unsigned char *out_ctr; /*!< 64-bit outgoing message counter */
+ unsigned char *out_hdr; /*!< 5-byte record header (out_ctr+8) */
+ unsigned char *out_msg; /*!< the message contents (out_hdr+5) */
+
+ int out_msgtype; /*!< record header: message type */
+ size_t out_msglen; /*!< record header: message length */
+ size_t out_left; /*!< amount of data not yet written */
+
+ /*
+ * PKI layer
+ */
+ rsa_context *rsa_key; /*!< own RSA private key */
+#if defined(POLARSSL_PKCS11_C)
+ pkcs11_context *pkcs11_key; /*!< own PKCS#11 RSA private key */
+#endif
+ x509_cert *own_cert; /*!< own X.509 certificate */
+ x509_cert *ca_chain; /*!< own trusted CA chain */
+ x509_crl *ca_crl; /*!< trusted CA CRLs */
+ x509_cert *peer_cert; /*!< peer X.509 cert chain */
+ const char *peer_cn; /*!< expected peer CN */
+
+ int endpoint; /*!< 0: client, 1: server */
+ int authmode; /*!< verification mode */
+ int client_auth; /*!< flag for client auth. */
+ int verify_result; /*!< verification result */
+
+ /*
+ * Crypto layer
+ */
+ dhm_context dhm_ctx; /*!< DHM key exchange */
+ md5_context fin_md5; /*!< Finished MD5 checksum */
+ sha1_context fin_sha1; /*!< Finished SHA-1 checksum */
+
+ int do_crypt; /*!< en(de)cryption flag */
+ int *ciphersuites; /*!< allowed ciphersuites */
+ size_t pmslen; /*!< premaster length */
+ unsigned int keylen; /*!< symmetric key length */
+ size_t minlen; /*!< min. ciphertext length */
+ size_t ivlen; /*!< IV length */
+ size_t maclen; /*!< MAC length */
+
+ unsigned char randbytes[64]; /*!< random bytes */
+ unsigned char premaster[256]; /*!< premaster secret */
+
+ unsigned char iv_enc[16]; /*!< IV (encryption) */
+ unsigned char iv_dec[16]; /*!< IV (decryption) */
+
+ unsigned char mac_enc[32]; /*!< MAC (encryption) */
+ unsigned char mac_dec[32]; /*!< MAC (decryption) */
+
+ unsigned long ctx_enc[128]; /*!< encryption context */
+ unsigned long ctx_dec[128]; /*!< decryption context */
+
+ /*
+ * TLS extensions
+ */
+ unsigned char *hostname;
+ size_t hostname_len;
+};
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern int ssl_default_ciphersuites[];
+
+/**
+ * \brief Returns the list of ciphersuites supported by the SSL/TLS module.
+ *
+ * \return a statically allocated array of ciphersuites, the last
+ * entry is 0.
+ */
+static inline const int *ssl_list_ciphersuites( void )
+{
+ return ssl_default_ciphersuites;
+}
+
+/**
+ * \brief Return the name of the ciphersuite associated with the given
+ * ID
+ *
+ * \param ciphersuite_id SSL ciphersuite ID
+ *
+ * \return a string containing the ciphersuite name
+ */
+const char *ssl_get_ciphersuite_name( const int ciphersuite_id );
+
+/**
+ * \brief Return the ID of the ciphersuite associated with the given
+ * name
+ *
+ * \param ciphersuite_name SSL ciphersuite name
+ *
+ * \return the ID with the ciphersuite or 0 if not found
+ */
+int ssl_get_ciphersuite_id( const char *ciphersuite_name );
+
+/**
+ * \brief Initialize an SSL context
+ *
+ * \param ssl SSL context
+ *
+ * \return 0 if successful, or POLARSSL_ERR_SSL_MALLOC_FAILED if
+ * memory allocation failed
+ */
+int ssl_init( ssl_context *ssl );
+
+/**
+ * \brief Reset an already initialized SSL context for re-use
+ * while retaining application-set variables, function
+ * pointers and data.
+ *
+ * \param ssl SSL context
+ */
+void ssl_session_reset( ssl_context *ssl );
+
+/**
+ * \brief Set the current endpoint type
+ *
+ * \param ssl SSL context
+ * \param endpoint must be SSL_IS_CLIENT or SSL_IS_SERVER
+ */
+void ssl_set_endpoint( ssl_context *ssl, int endpoint );
+
+/**
+ * \brief Set the certificate verification mode
+ *
+ * \param ssl SSL context
+ * \param authmode can be:
+ *
+ * SSL_VERIFY_NONE: peer certificate is not checked (default),
+ * this is insecure and SHOULD be avoided.
+ *
+ * SSL_VERIFY_OPTIONAL: peer certificate is checked, however the
+ * handshake continues even if verification failed;
+ * ssl_get_verify_result() can be called after the
+ * handshake is complete.
+ *
+ * SSL_VERIFY_REQUIRED: peer *must* present a valid certificate,
+ * handshake is aborted if verification failed.
+ */
+void ssl_set_authmode( ssl_context *ssl, int authmode );
+
+/**
+ * \brief Set the verification callback (Optional).
+ *
+ * If set, the verification callback is called once for every
+ * certificate in the chain. The verification function has the
+ * following parameter: (void *parameter, x509_cert certificate,
+ * int certifcate_depth, int preverify_ok). It should
+ * return 0 on SUCCESS.
+ *
+ * \param ssl SSL context
+ * \param f_vrfy verification function
+ * \param p_vrfy verification parameter
+ */
+void ssl_set_verify( ssl_context *ssl,
+ int (*f_vrfy)(void *, x509_cert *, int, int),
+ void *p_vrfy );
+
+/**
+ * \brief Set the random number generator callback
+ *
+ * \param ssl SSL context
+ * \param f_rng RNG function
+ * \param p_rng RNG parameter
+ */
+void ssl_set_rng( ssl_context *ssl,
+ int (*f_rng)(void *, unsigned char *, size_t),
+ void *p_rng );
+
+/**
+ * \brief Set the debug callback
+ *
+ * \param ssl SSL context
+ * \param f_dbg debug function
+ * \param p_dbg debug parameter
+ */
+void ssl_set_dbg( ssl_context *ssl,
+ void (*f_dbg)(void *, int, const char *),
+ void *p_dbg );
+
+/**
+ * \brief Set the underlying BIO read and write callbacks
+ *
+ * \param ssl SSL context
+ * \param f_recv read callback
+ * \param p_recv read parameter
+ * \param f_send write callback
+ * \param p_send write parameter
+ */
+void ssl_set_bio( ssl_context *ssl,
+ int (*f_recv)(void *, unsigned char *, size_t), void *p_recv,
+ int (*f_send)(void *, const unsigned char *, size_t), void *p_send );
+
+/**
+ * \brief Set the session callbacks (server-side only)
+ *
+ * \param ssl SSL context
+ * \param s_get session get callback
+ * \param s_set session set callback
+ */
+void ssl_set_scb( ssl_context *ssl,
+ int (*s_get)(ssl_context *),
+ int (*s_set)(ssl_context *) );
+
+/**
+ * \brief Set the session resuming flag, timeout and data
+ *
+ * \param ssl SSL context
+ * \param resume if 0 (default), the session will not be resumed
+ * \param timeout session timeout in seconds, or 0 (no timeout)
+ * \param session session context
+ */
+void ssl_set_session( ssl_context *ssl, int resume, int timeout,
+ ssl_session *session );
+
+/**
+ * \brief Set the list of allowed ciphersuites
+ *
+ * \param ssl SSL context
+ * \param ciphersuites 0-terminated list of allowed ciphersuites
+ */
+void ssl_set_ciphersuites( ssl_context *ssl, int *ciphersuites );
+
+/**
+ * \brief Set the data required to verify peer certificate
+ *
+ * \param ssl SSL context
+ * \param ca_chain trusted CA chain
+ * \param ca_crl trusted CA CRLs
+ * \param peer_cn expected peer CommonName (or NULL)
+ *
+ * \note TODO: add two more parameters: depth and crl
+ */
+void ssl_set_ca_chain( ssl_context *ssl, x509_cert *ca_chain,
+ x509_crl *ca_crl, const char *peer_cn );
+
+/**
+ * \brief Set own certificate and private key
+ *
+ * \param ssl SSL context
+ * \param own_cert own public certificate
+ * \param rsa_key own private RSA key
+ */
+void ssl_set_own_cert( ssl_context *ssl, x509_cert *own_cert,
+ rsa_context *rsa_key );
+
+#if defined(POLARSSL_PKCS11_C)
+/**
+ * \brief Set own certificate and PKCS#11 private key
+ *
+ * \param ssl SSL context
+ * \param own_cert own public certificate
+ * \param pkcs11_key own PKCS#11 RSA key
+ */
+void ssl_set_own_cert_pkcs11( ssl_context *ssl, x509_cert *own_cert,
+ pkcs11_context *pkcs11_key );
+#endif
+
+/**
+ * \brief Set the Diffie-Hellman public P and G values,
+ * read as hexadecimal strings (server-side only)
+ *
+ * \param ssl SSL context
+ * \param dhm_P Diffie-Hellman-Merkle modulus
+ * \param dhm_G Diffie-Hellman-Merkle generator
+ *
+ * \return 0 if successful
+ */
+int ssl_set_dh_param( ssl_context *ssl, const char *dhm_P, const char *dhm_G );
+
+/**
+ * \brief Set the Diffie-Hellman public P and G values,
+ * read from existing context (server-side only)
+ *
+ * \param ssl SSL context
+ * \param dhm_ctx Diffie-Hellman-Merkle context
+ *
+ * \return 0 if successful
+ */
+int ssl_set_dh_param_ctx( ssl_context *ssl, dhm_context *dhm_ctx );
+
+/**
+ * \brief Set hostname for ServerName TLS Extension
+ *
+ *
+ * \param ssl SSL context
+ * \param hostname the server hostname
+ *
+ * \return 0 if successful or POLARSSL_ERR_SSL_MALLOC_FAILED
+ */
+int ssl_set_hostname( ssl_context *ssl, const char *hostname );
+
+/**
+ * \brief Set the maximum supported version sent from the client side
+ *
+ * \param ssl SSL context
+ * \param major Major version number (only SSL_MAJOR_VERSION_3 supported)
+ * \param minor Minor version number (SSL_MINOR_VERSION_0,
+ * SSL_MINOR_VERSION_1 and SSL_MINOR_VERSION_2 supported)
+ */
+void ssl_set_max_version( ssl_context *ssl, int major, int minor );
+
+/**
+ * \brief Return the number of data bytes available to read
+ *
+ * \param ssl SSL context
+ *
+ * \return how many bytes are available in the read buffer
+ */
+size_t ssl_get_bytes_avail( const ssl_context *ssl );
+
+/**
+ * \brief Return the result of the certificate verification
+ *
+ * \param ssl SSL context
+ *
+ * \return 0 if successful, or a combination of:
+ * BADCERT_EXPIRED
+ * BADCERT_REVOKED
+ * BADCERT_CN_MISMATCH
+ * BADCERT_NOT_TRUSTED
+ */
+int ssl_get_verify_result( const ssl_context *ssl );
+
+/**
+ * \brief Return the name of the current ciphersuite
+ *
+ * \param ssl SSL context
+ *
+ * \return a string containing the ciphersuite name
+ */
+const char *ssl_get_ciphersuite( const ssl_context *ssl );
+
+/**
+ * \brief Return the current SSL version (SSLv3/TLSv1/etc)
+ *
+ * \param ssl SSL context
+ *
+ * \return a string containing the SSL version
+ */
+const char *ssl_get_version( const ssl_context *ssl );
+
+/**
+ * \brief Perform the SSL handshake
+ *
+ * \param ssl SSL context
+ *
+ * \return 0 if successful, POLARSSL_ERR_NET_WANT_READ,
+ * POLARSSL_ERR_NET_WANT_WRITE, or a specific SSL error code.
+ */
+int ssl_handshake( ssl_context *ssl );
+
+/**
+ * \brief Read at most 'len' application data bytes
+ *
+ * \param ssl SSL context
+ * \param buf buffer that will hold the data
+ * \param len how many bytes must be read
+ *
+ * \return This function returns the number of bytes read, 0 for EOF,
+ * or a negative error code.
+ */
+int ssl_read( ssl_context *ssl, unsigned char *buf, size_t len );
+
+/**
+ * \brief Write exactly 'len' application data bytes
+ *
+ * \param ssl SSL context
+ * \param buf buffer holding the data
+ * \param len how many bytes must be written
+ *
+ * \return This function returns the number of bytes written,
+ * or a negative error code.
+ *
+ * \note When this function returns POLARSSL_ERR_NET_WANT_WRITE,
+ * it must be called later with the *same* arguments,
+ * until it returns a positive value.
+ */
+int ssl_write( ssl_context *ssl, const unsigned char *buf, size_t len );
+
+/**
+ * \brief Notify the peer that the connection is being closed
+ *
+ * \param ssl SSL context
+ */
+int ssl_close_notify( ssl_context *ssl );
+
+/**
+ * \brief Free an SSL context
+ *
+ * \param ssl SSL context
+ */
+void ssl_free( ssl_context *ssl );
+
+/*
+ * Internal functions (do not call directly)
+ */
+int ssl_handshake_client( ssl_context *ssl );
+int ssl_handshake_server( ssl_context *ssl );
+
+int ssl_derive_keys( ssl_context *ssl );
+void ssl_calc_verify( ssl_context *ssl, unsigned char hash[36] );
+
+int ssl_read_record( ssl_context *ssl );
+/**
+ * \return 0 if successful, POLARSSL_ERR_SSL_CONN_EOF on EOF or
+ * another negative error code.
+ */
+int ssl_fetch_input( ssl_context *ssl, size_t nb_want );
+
+int ssl_write_record( ssl_context *ssl );
+int ssl_flush_output( ssl_context *ssl );
+
+int ssl_parse_certificate( ssl_context *ssl );
+int ssl_write_certificate( ssl_context *ssl );
+
+int ssl_parse_change_cipher_spec( ssl_context *ssl );
+int ssl_write_change_cipher_spec( ssl_context *ssl );
+
+int ssl_parse_finished( ssl_context *ssl );
+int ssl_write_finished( ssl_context *ssl );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* ssl.h */
--- /dev/null
+/**
+ * \file timing.h
+ *
+ * \brief Portable interface to the CPU cycle counter
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#ifndef POLARSSL_TIMING_H
+#define POLARSSL_TIMING_H
+
+/**
+ * \brief timer structure
+ */
+struct hr_time
+{
+ unsigned char opaque[32];
+};
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern volatile int alarmed;
+
+/**
+ * \brief Return the CPU cycle counter value
+ */
+unsigned long hardclock( void );
+
+/**
+ * \brief Return the elapsed time in milliseconds
+ *
+ * \param val points to a timer structure
+ * \param reset if set to 1, the timer is restarted
+ */
+unsigned long get_timer( struct hr_time *val, int reset );
+
+/**
+ * \brief Setup an alarm clock
+ *
+ * \param seconds delay before the "alarmed" flag is set
+ */
+void set_alarm( int seconds );
+
+/**
+ * \brief Sleep for a certain amount of time
+ *
+ * \param milliseconds delay in milliseconds
+ */
+void m_sleep( int milliseconds );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* timing.h */
--- /dev/null
+/**
+ * \file version.h
+ *
+ * \brief Run-time version information
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+/*
+ * This set of compile-time defines and run-time variables can be used to
+ * determine the version number of the PolarSSL library used.
+ */
+#ifndef POLARSSL_VERSION_H
+#define POLARSSL_VERSION_H
+
+#include "config.h"
+
+/**
+ * The version number x.y.z is split into three parts.
+ * Major, Minor, Patchlevel
+ */
+#define POLARSSL_VERSION_MAJOR 1
+#define POLARSSL_VERSION_MINOR 1
+#define POLARSSL_VERSION_PATCH 1
+
+/**
+ * The single version number has the following structure:
+ * MMNNPP00
+ * Major version | Minor version | Patch version
+ */
+#define POLARSSL_VERSION_NUMBER 0x01010100
+#define POLARSSL_VERSION_STRING "1.1.1"
+#define POLARSSL_VERSION_STRING_FULL "PolarSSL 1.1.1"
+
+#if defined(POLARSSL_VERSION_C)
+
+/**
+ * Get the version number.
+ *
+ * \return The constructed version number in the format
+ * MMNNPP00 (Major, Minor, Patch).
+ */
+unsigned int version_get_number( void );
+
+/**
+ * Get the version string ("x.y.z").
+ *
+ * \param string The string that will receive the value.
+ * (Should be at least 9 bytes in size)
+ */
+void version_get_string( char *string );
+
+/**
+ * Get the full version string ("PolarSSL x.y.z").
+ *
+ * \param string The string that will receive the value.
+ * (Should be at least 18 bytes in size)
+ */
+void version_get_string_full( char *string );
+
+#endif /* POLARSSL_VERSION_C */
+
+#endif /* version.h */
--- /dev/null
+/**
+ * \file x509.h
+ *
+ * \brief X.509 certificate and private key decoding
+ *
+ * Copyright (C) 2006-2011, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#ifndef POLARSSL_X509_H
+#define POLARSSL_X509_H
+
+#include "asn1.h"
+#include "rsa.h"
+#include "dhm.h"
+
+/**
+ * \addtogroup x509_module
+ * \{
+ */
+
+/**
+ * \name X509 Error codes
+ * \{
+ */
+#define POLARSSL_ERR_X509_FEATURE_UNAVAILABLE -0x2080 /**< Unavailable feature, e.g. RSA hashing/encryption combination. */
+#define POLARSSL_ERR_X509_CERT_INVALID_PEM -0x2100 /**< The PEM-encoded certificate contains invalid elements, e.g. invalid character. */
+#define POLARSSL_ERR_X509_CERT_INVALID_FORMAT -0x2180 /**< The certificate format is invalid, e.g. different type expected. */
+#define POLARSSL_ERR_X509_CERT_INVALID_VERSION -0x2200 /**< The certificate version element is invalid. */
+#define POLARSSL_ERR_X509_CERT_INVALID_SERIAL -0x2280 /**< The serial tag or value is invalid. */
+#define POLARSSL_ERR_X509_CERT_INVALID_ALG -0x2300 /**< The algorithm tag or value is invalid. */
+#define POLARSSL_ERR_X509_CERT_INVALID_NAME -0x2380 /**< The name tag or value is invalid. */
+#define POLARSSL_ERR_X509_CERT_INVALID_DATE -0x2400 /**< The date tag or value is invalid. */
+#define POLARSSL_ERR_X509_CERT_INVALID_PUBKEY -0x2480 /**< The pubkey tag or value is invalid (only RSA is supported). */
+#define POLARSSL_ERR_X509_CERT_INVALID_SIGNATURE -0x2500 /**< The signature tag or value invalid. */
+#define POLARSSL_ERR_X509_CERT_INVALID_EXTENSIONS -0x2580 /**< The extension tag or value is invalid. */
+#define POLARSSL_ERR_X509_CERT_UNKNOWN_VERSION -0x2600 /**< Certificate or CRL has an unsupported version number. */
+#define POLARSSL_ERR_X509_CERT_UNKNOWN_SIG_ALG -0x2680 /**< Signature algorithm (oid) is unsupported. */
+#define POLARSSL_ERR_X509_UNKNOWN_PK_ALG -0x2700 /**< Key algorithm is unsupported (only RSA is supported). */
+#define POLARSSL_ERR_X509_CERT_SIG_MISMATCH -0x2780 /**< Certificate signature algorithms do not match. (see \c ::x509_cert sig_oid) */
+#define POLARSSL_ERR_X509_CERT_VERIFY_FAILED -0x2800 /**< Certificate verification failed, e.g. CRL, CA or signature check failed. */
+#define POLARSSL_ERR_X509_KEY_INVALID_VERSION -0x2880 /**< Unsupported RSA key version */
+#define POLARSSL_ERR_X509_KEY_INVALID_FORMAT -0x2900 /**< Invalid RSA key tag or value. */
+#define POLARSSL_ERR_X509_CERT_UNKNOWN_FORMAT -0x2980 /**< Format not recognized as DER or PEM. */
+#define POLARSSL_ERR_X509_INVALID_INPUT -0x2A00 /**< Input invalid. */
+#define POLARSSL_ERR_X509_MALLOC_FAILED -0x2A80 /**< Allocation of memory failed. */
+#define POLARSSL_ERR_X509_FILE_IO_ERROR -0x2B00 /**< Read/write of file failed. */
+/* \} name */
+
+
+/**
+ * \name X509 Verify codes
+ * \{
+ */
+#define BADCERT_EXPIRED 0x01 /**< The certificate validity has expired. */
+#define BADCERT_REVOKED 0x02 /**< The certificate has been revoked (is on a CRL). */
+#define BADCERT_CN_MISMATCH 0x04 /**< The certificate Common Name (CN) does not match with the expected CN. */
+#define BADCERT_NOT_TRUSTED 0x08 /**< The certificate is not correctly signed by the trusted CA. */
+#define BADCRL_NOT_TRUSTED 0x10 /**< CRL is not correctly signed by the trusted CA. */
+#define BADCRL_EXPIRED 0x20 /**< CRL is expired. */
+#define BADCERT_MISSING 0x40 /**< Certificate was missing. */
+#define BADCERT_SKIP_VERIFY 0x80 /**< Certificate verification was skipped. */
+/* \} name */
+/* \} addtogroup x509_module */
+
+/*
+ * various object identifiers
+ */
+#define X520_COMMON_NAME 3
+#define X520_COUNTRY 6
+#define X520_LOCALITY 7
+#define X520_STATE 8
+#define X520_ORGANIZATION 10
+#define X520_ORG_UNIT 11
+#define PKCS9_EMAIL 1
+
+#define X509_OUTPUT_DER 0x01
+#define X509_OUTPUT_PEM 0x02
+#define PEM_LINE_LENGTH 72
+#define X509_ISSUER 0x01
+#define X509_SUBJECT 0x02
+
+#define OID_X520 "\x55\x04"
+#define OID_CN OID_X520 "\x03"
+
+#define OID_PKCS1 "\x2A\x86\x48\x86\xF7\x0D\x01\x01"
+#define OID_PKCS1_RSA OID_PKCS1 "\x01"
+
+#define OID_RSA_SHA_OBS "\x2B\x0E\x03\x02\x1D"
+
+#define OID_PKCS9 "\x2A\x86\x48\x86\xF7\x0D\x01\x09"
+#define OID_PKCS9_EMAIL OID_PKCS9 "\x01"
+
+/** ISO arc for standard certificate and CRL extensions */
+#define OID_ID_CE "\x55\x1D" /**< id-ce OBJECT IDENTIFIER ::= {joint-iso-ccitt(2) ds(5) 29} */
+
+/**
+ * Private Internet Extensions
+ * { iso(1) identified-organization(3) dod(6) internet(1)
+ * security(5) mechanisms(5) pkix(7) }
+ */
+#define OID_PKIX "\x2B\x06\x01\x05\x05\x07"
+
+/*
+ * OIDs for standard certificate extensions
+ */
+#define OID_AUTHORITY_KEY_IDENTIFIER OID_ID_CE "\x23" /**< id-ce-authorityKeyIdentifier OBJECT IDENTIFIER ::= { id-ce 35 } */
+#define OID_SUBJECT_KEY_IDENTIFIER OID_ID_CE "\x0E" /**< id-ce-subjectKeyIdentifier OBJECT IDENTIFIER ::= { id-ce 14 } */
+#define OID_KEY_USAGE OID_ID_CE "\x0F" /**< id-ce-keyUsage OBJECT IDENTIFIER ::= { id-ce 15 } */
+#define OID_CERTIFICATE_POLICIES OID_ID_CE "\x20" /**< id-ce-certificatePolicies OBJECT IDENTIFIER ::= { id-ce 32 } */
+#define OID_POLICY_MAPPINGS OID_ID_CE "\x21" /**< id-ce-policyMappings OBJECT IDENTIFIER ::= { id-ce 33 } */
+#define OID_SUBJECT_ALT_NAME OID_ID_CE "\x11" /**< id-ce-subjectAltName OBJECT IDENTIFIER ::= { id-ce 17 } */
+#define OID_ISSUER_ALT_NAME OID_ID_CE "\x12" /**< id-ce-issuerAltName OBJECT IDENTIFIER ::= { id-ce 18 } */
+#define OID_SUBJECT_DIRECTORY_ATTRS OID_ID_CE "\x09" /**< id-ce-subjectDirectoryAttributes OBJECT IDENTIFIER ::= { id-ce 9 } */
+#define OID_BASIC_CONSTRAINTS OID_ID_CE "\x13" /**< id-ce-basicConstraints OBJECT IDENTIFIER ::= { id-ce 19 } */
+#define OID_NAME_CONSTRAINTS OID_ID_CE "\x1E" /**< id-ce-nameConstraints OBJECT IDENTIFIER ::= { id-ce 30 } */
+#define OID_POLICY_CONSTRAINTS OID_ID_CE "\x24" /**< id-ce-policyConstraints OBJECT IDENTIFIER ::= { id-ce 36 } */
+#define OID_EXTENDED_KEY_USAGE OID_ID_CE "\x25" /**< id-ce-extKeyUsage OBJECT IDENTIFIER ::= { id-ce 37 } */
+#define OID_CRL_DISTRIBUTION_POINTS OID_ID_CE "\x1F" /**< id-ce-cRLDistributionPoints OBJECT IDENTIFIER ::= { id-ce 31 } */
+#define OID_INIHIBIT_ANYPOLICY OID_ID_CE "\x36" /**< id-ce-inhibitAnyPolicy OBJECT IDENTIFIER ::= { id-ce 54 } */
+#define OID_FRESHEST_CRL OID_ID_CE "\x2E" /**< id-ce-freshestCRL OBJECT IDENTIFIER ::= { id-ce 46 } */
+
+/*
+ * X.509 v3 Key Usage Extension flags
+ */
+#define KU_DIGITAL_SIGNATURE (0x80) /* bit 0 */
+#define KU_NON_REPUDIATION (0x40) /* bit 1 */
+#define KU_KEY_ENCIPHERMENT (0x20) /* bit 2 */
+#define KU_DATA_ENCIPHERMENT (0x10) /* bit 3 */
+#define KU_KEY_AGREEMENT (0x08) /* bit 4 */
+#define KU_KEY_CERT_SIGN (0x04) /* bit 5 */
+#define KU_CRL_SIGN (0x02) /* bit 6 */
+
+/*
+ * X.509 v3 Extended key usage OIDs
+ */
+#define OID_ANY_EXTENDED_KEY_USAGE OID_EXTENDED_KEY_USAGE "\x00" /**< anyExtendedKeyUsage OBJECT IDENTIFIER ::= { id-ce-extKeyUsage 0 } */
+
+#define OID_KP OID_PKIX "\x03" /**< id-kp OBJECT IDENTIFIER ::= { id-pkix 3 } */
+#define OID_SERVER_AUTH OID_KP "\x01" /**< id-kp-serverAuth OBJECT IDENTIFIER ::= { id-kp 1 } */
+#define OID_CLIENT_AUTH OID_KP "\x02" /**< id-kp-clientAuth OBJECT IDENTIFIER ::= { id-kp 2 } */
+#define OID_CODE_SIGNING OID_KP "\x03" /**< id-kp-codeSigning OBJECT IDENTIFIER ::= { id-kp 3 } */
+#define OID_EMAIL_PROTECTION OID_KP "\x04" /**< id-kp-emailProtection OBJECT IDENTIFIER ::= { id-kp 4 } */
+#define OID_TIME_STAMPING OID_KP "\x08" /**< id-kp-timeStamping OBJECT IDENTIFIER ::= { id-kp 8 } */
+#define OID_OCSP_SIGNING OID_KP "\x09" /**< id-kp-OCSPSigning OBJECT IDENTIFIER ::= { id-kp 9 } */
+
+#define STRING_SERVER_AUTH "TLS Web Server Authentication"
+#define STRING_CLIENT_AUTH "TLS Web Client Authentication"
+#define STRING_CODE_SIGNING "Code Signing"
+#define STRING_EMAIL_PROTECTION "E-mail Protection"
+#define STRING_TIME_STAMPING "Time Stamping"
+#define STRING_OCSP_SIGNING "OCSP Signing"
+
+/*
+ * OIDs for CRL extensions
+ */
+#define OID_PRIVATE_KEY_USAGE_PERIOD OID_ID_CE "\x10"
+#define OID_CRL_NUMBER OID_ID_CE "\x14" /**< id-ce-cRLNumber OBJECT IDENTIFIER ::= { id-ce 20 } */
+
+/*
+ * Netscape certificate extensions
+ */
+#define OID_NETSCAPE "\x60\x86\x48\x01\x86\xF8\x42" /**< Netscape OID */
+#define OID_NS_CERT OID_NETSCAPE "\x01"
+#define OID_NS_CERT_TYPE OID_NS_CERT "\x01"
+#define OID_NS_BASE_URL OID_NS_CERT "\x02"
+#define OID_NS_REVOCATION_URL OID_NS_CERT "\x03"
+#define OID_NS_CA_REVOCATION_URL OID_NS_CERT "\x04"
+#define OID_NS_RENEWAL_URL OID_NS_CERT "\x07"
+#define OID_NS_CA_POLICY_URL OID_NS_CERT "\x08"
+#define OID_NS_SSL_SERVER_NAME OID_NS_CERT "\x0C"
+#define OID_NS_COMMENT OID_NS_CERT "\x0D"
+#define OID_NS_DATA_TYPE OID_NETSCAPE "\x02"
+#define OID_NS_CERT_SEQUENCE OID_NS_DATA_TYPE "\x05"
+
+/*
+ * Netscape certificate types
+ * (http://www.mozilla.org/projects/security/pki/nss/tech-notes/tn3.html)
+ */
+
+#define NS_CERT_TYPE_SSL_CLIENT (0x80) /* bit 0 */
+#define NS_CERT_TYPE_SSL_SERVER (0x40) /* bit 1 */
+#define NS_CERT_TYPE_EMAIL (0x20) /* bit 2 */
+#define NS_CERT_TYPE_OBJECT_SIGNING (0x10) /* bit 3 */
+#define NS_CERT_TYPE_RESERVED (0x08) /* bit 4 */
+#define NS_CERT_TYPE_SSL_CA (0x04) /* bit 5 */
+#define NS_CERT_TYPE_EMAIL_CA (0x02) /* bit 6 */
+#define NS_CERT_TYPE_OBJECT_SIGNING_CA (0x01) /* bit 7 */
+
+#define EXT_AUTHORITY_KEY_IDENTIFIER (1 << 0)
+#define EXT_SUBJECT_KEY_IDENTIFIER (1 << 1)
+#define EXT_KEY_USAGE (1 << 2)
+#define EXT_CERTIFICATE_POLICIES (1 << 3)
+#define EXT_POLICY_MAPPINGS (1 << 4)
+#define EXT_SUBJECT_ALT_NAME (1 << 5)
+#define EXT_ISSUER_ALT_NAME (1 << 6)
+#define EXT_SUBJECT_DIRECTORY_ATTRS (1 << 7)
+#define EXT_BASIC_CONSTRAINTS (1 << 8)
+#define EXT_NAME_CONSTRAINTS (1 << 9)
+#define EXT_POLICY_CONSTRAINTS (1 << 10)
+#define EXT_EXTENDED_KEY_USAGE (1 << 11)
+#define EXT_CRL_DISTRIBUTION_POINTS (1 << 12)
+#define EXT_INIHIBIT_ANYPOLICY (1 << 13)
+#define EXT_FRESHEST_CRL (1 << 14)
+
+#define EXT_NS_CERT_TYPE (1 << 16)
+
+/*
+ * Storage format identifiers
+ * Recognized formats: PEM and DER
+ */
+#define X509_FORMAT_DER 1
+#define X509_FORMAT_PEM 2
+
+/**
+ * \addtogroup x509_module
+ * \{ */
+
+/**
+ * \name Structures for parsing X.509 certificates and CRLs
+ * \{
+ */
+
+/**
+ * Type-length-value structure that allows for ASN1 using DER.
+ */
+typedef asn1_buf x509_buf;
+
+/**
+ * Container for ASN1 bit strings.
+ */
+typedef asn1_bitstring x509_bitstring;
+
+/**
+ * Container for ASN1 named information objects.
+ * It allows for Relative Distinguished Names (e.g. cn=polarssl,ou=code,etc.).
+ */
+typedef struct _x509_name
+{
+ x509_buf oid; /**< The object identifier. */
+ x509_buf val; /**< The named value. */
+ struct _x509_name *next; /**< The next named information object. */
+}
+x509_name;
+
+/**
+ * Container for a sequence of ASN.1 items
+ */
+typedef asn1_sequence x509_sequence;
+
+/** Container for date and time (precision in seconds). */
+typedef struct _x509_time
+{
+ int year, mon, day; /**< Date. */
+ int hour, min, sec; /**< Time. */
+}
+x509_time;
+
+/**
+ * Container for an X.509 certificate. The certificate may be chained.
+ */
+typedef struct _x509_cert
+{
+ x509_buf raw; /**< The raw certificate data (DER). */
+ x509_buf tbs; /**< The raw certificate body (DER). The part that is To Be Signed. */
+
+ int version; /**< The X.509 version. (0=v1, 1=v2, 2=v3) */
+ x509_buf serial; /**< Unique id for certificate issued by a specific CA. */
+ x509_buf sig_oid1; /**< Signature algorithm, e.g. sha1RSA */
+
+ x509_buf issuer_raw; /**< The raw issuer data (DER). Used for quick comparison. */
+ x509_buf subject_raw; /**< The raw subject data (DER). Used for quick comparison. */
+
+ x509_name issuer; /**< The parsed issuer data (named information object). */
+ x509_name subject; /**< The parsed subject data (named information object). */
+
+ x509_time valid_from; /**< Start time of certificate validity. */
+ x509_time valid_to; /**< End time of certificate validity. */
+
+ x509_buf pk_oid; /**< Subject public key info. Includes the public key algorithm and the key itself. */
+ rsa_context rsa; /**< Container for the RSA context. Only RSA is supported for public keys at this time. */
+
+ x509_buf issuer_id; /**< Optional X.509 v2/v3 issuer unique identifier. */
+ x509_buf subject_id; /**< Optional X.509 v2/v3 subject unique identifier. */
+ x509_buf v3_ext; /**< Optional X.509 v3 extensions. Only Basic Contraints are supported at this time. */
+
+ int ext_types; /**< Bit string containing detected and parsed extensions */
+ int ca_istrue; /**< Optional Basic Constraint extension value: 1 if this certificate belongs to a CA, 0 otherwise. */
+ int max_pathlen; /**< Optional Basic Constraint extension value: The maximum path length to the root certificate. */
+
+ unsigned char key_usage; /**< Optional key usage extension value: See the values below */
+
+ x509_sequence ext_key_usage; /**< Optional list of extended key usage OIDs. */
+
+ unsigned char ns_cert_type; /**< Optional Netscape certificate type extension value: See the values below */
+
+ x509_buf sig_oid2; /**< Signature algorithm. Must match sig_oid1. */
+ x509_buf sig; /**< Signature: hash of the tbs part signed with the private key. */
+ int sig_alg; /**< Internal representation of the signature algorithm, e.g. SIG_RSA_MD2 */
+
+ struct _x509_cert *next; /**< Next certificate in the CA-chain. */
+}
+x509_cert;
+
+/**
+ * Certificate revocation list entry.
+ * Contains the CA-specific serial numbers and revocation dates.
+ */
+typedef struct _x509_crl_entry
+{
+ x509_buf raw;
+
+ x509_buf serial;
+
+ x509_time revocation_date;
+
+ x509_buf entry_ext;
+
+ struct _x509_crl_entry *next;
+}
+x509_crl_entry;
+
+/**
+ * Certificate revocation list structure.
+ * Every CRL may have multiple entries.
+ */
+typedef struct _x509_crl
+{
+ x509_buf raw; /**< The raw certificate data (DER). */
+ x509_buf tbs; /**< The raw certificate body (DER). The part that is To Be Signed. */
+
+ int version;
+ x509_buf sig_oid1;
+
+ x509_buf issuer_raw; /**< The raw issuer data (DER). */
+
+ x509_name issuer; /**< The parsed issuer data (named information object). */
+
+ x509_time this_update;
+ x509_time next_update;
+
+ x509_crl_entry entry; /**< The CRL entries containing the certificate revocation times for this CA. */
+
+ x509_buf crl_ext;
+
+ x509_buf sig_oid2;
+ x509_buf sig;
+ int sig_alg;
+
+ struct _x509_crl *next;
+}
+x509_crl;
+/** \} name Structures for parsing X.509 certificates and CRLs */
+/** \} addtogroup x509_module */
+
+/**
+ * \name Structures for writing X.509 certificates.
+ * XvP: commented out as they are not used.
+ * - <tt>typedef struct _x509_node x509_node;</tt>
+ * - <tt>typedef struct _x509_raw x509_raw;</tt>
+ */
+/*
+typedef struct _x509_node
+{
+ unsigned char *data;
+ unsigned char *p;
+ unsigned char *end;
+
+ size_t len;
+}
+x509_node;
+
+typedef struct _x509_raw
+{
+ x509_node raw;
+ x509_node tbs;
+
+ x509_node version;
+ x509_node serial;
+ x509_node tbs_signalg;
+ x509_node issuer;
+ x509_node validity;
+ x509_node subject;
+ x509_node subpubkey;
+
+ x509_node signalg;
+ x509_node sign;
+}
+x509_raw;
+*/
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \name Functions to read in DHM parameters, a certificate, CRL or private RSA key
+ * \{
+ */
+
+/** \ingroup x509_module */
+/**
+ * \brief Parse one or more certificates and add them
+ * to the chained list. Parses permissively. If some
+ * certificates can be parsed, the result is the number
+ * of failed certificates it encountered. If none complete
+ * correctly, the first error is returned.
+ *
+ * \param chain points to the start of the chain
+ * \param buf buffer holding the certificate data
+ * \param buflen size of the buffer
+ *
+ * \return 0 if all certificates parsed successfully, a positive number
+ * if partly successful or a specific X509 or PEM error code
+ */
+int x509parse_crt( x509_cert *chain, const unsigned char *buf, size_t buflen );
+
+/** \ingroup x509_module */
+/**
+ * \brief Load one or more certificates and add them
+ * to the chained list. Parses permissively. If some
+ * certificates can be parsed, the result is the number
+ * of failed certificates it encountered. If none complete
+ * correctly, the first error is returned.
+ *
+ * \param chain points to the start of the chain
+ * \param path filename to read the certificates from
+ *
+ * \return 0 if all certificates parsed successfully, a positive number
+ * if partly successful or a specific X509 or PEM error code
+ */
+int x509parse_crtfile( x509_cert *chain, const char *path );
+
+/** \ingroup x509_module */
+/**
+ * \brief Parse one or more CRLs and add them
+ * to the chained list
+ *
+ * \param chain points to the start of the chain
+ * \param buf buffer holding the CRL data
+ * \param buflen size of the buffer
+ *
+ * \return 0 if successful, or a specific X509 or PEM error code
+ */
+int x509parse_crl( x509_crl *chain, const unsigned char *buf, size_t buflen );
+
+/** \ingroup x509_module */
+/**
+ * \brief Load one or more CRLs and add them
+ * to the chained list
+ *
+ * \param chain points to the start of the chain
+ * \param path filename to read the CRLs from
+ *
+ * \return 0 if successful, or a specific X509 or PEM error code
+ */
+int x509parse_crlfile( x509_crl *chain, const char *path );
+
+/** \ingroup x509_module */
+/**
+ * \brief Parse a private RSA key
+ *
+ * \param rsa RSA context to be initialized
+ * \param key input buffer
+ * \param keylen size of the buffer
+ * \param pwd password for decryption (optional)
+ * \param pwdlen size of the password
+ *
+ * \return 0 if successful, or a specific X509 or PEM error code
+ */
+int x509parse_key( rsa_context *rsa,
+ const unsigned char *key, size_t keylen,
+ const unsigned char *pwd, size_t pwdlen );
+
+/** \ingroup x509_module */
+/**
+ * \brief Load and parse a private RSA key
+ *
+ * \param rsa RSA context to be initialized
+ * \param path filename to read the private key from
+ * \param password password to decrypt the file (can be NULL)
+ *
+ * \return 0 if successful, or a specific X509 or PEM error code
+ */
+int x509parse_keyfile( rsa_context *rsa, const char *path,
+ const char *password );
+
+/** \ingroup x509_module */
+/**
+ * \brief Parse a public RSA key
+ *
+ * \param rsa RSA context to be initialized
+ * \param key input buffer
+ * \param keylen size of the buffer
+ *
+ * \return 0 if successful, or a specific X509 or PEM error code
+ */
+int x509parse_public_key( rsa_context *rsa,
+ const unsigned char *key, size_t keylen );
+
+/** \ingroup x509_module */
+/**
+ * \brief Load and parse a public RSA key
+ *
+ * \param rsa RSA context to be initialized
+ * \param path filename to read the private key from
+ *
+ * \return 0 if successful, or a specific X509 or PEM error code
+ */
+int x509parse_public_keyfile( rsa_context *rsa, const char *path );
+
+/** \ingroup x509_module */
+/**
+ * \brief Parse DHM parameters
+ *
+ * \param dhm DHM context to be initialized
+ * \param dhmin input buffer
+ * \param dhminlen size of the buffer
+ *
+ * \return 0 if successful, or a specific X509 or PEM error code
+ */
+int x509parse_dhm( dhm_context *dhm, const unsigned char *dhmin, size_t dhminlen );
+
+/** \ingroup x509_module */
+/**
+ * \brief Load and parse DHM parameters
+ *
+ * \param dhm DHM context to be initialized
+ * \param path filename to read the DHM Parameters from
+ *
+ * \return 0 if successful, or a specific X509 or PEM error code
+ */
+int x509parse_dhmfile( dhm_context *dhm, const char *path );
+
+/** \} name Functions to read in DHM parameters, a certificate, CRL or private RSA key */
+
+/**
+ * \brief Store the certificate DN in printable form into buf;
+ * no more than size characters will be written.
+ *
+ * \param buf Buffer to write to
+ * \param size Maximum size of buffer
+ * \param dn The X509 name to represent
+ *
+ * \return The amount of data written to the buffer, or -1 in
+ * case of an error.
+ */
+int x509parse_dn_gets( char *buf, size_t size, const x509_name *dn );
+
+/**
+ * \brief Store the certificate serial in printable form into buf;
+ * no more than size characters will be written.
+ *
+ * \param buf Buffer to write to
+ * \param size Maximum size of buffer
+ * \param serial The X509 serial to represent
+ *
+ * \return The amount of data written to the buffer, or -1 in
+ * case of an error.
+ */
+int x509parse_serial_gets( char *buf, size_t size, const x509_buf *serial );
+
+/**
+ * \brief Returns an informational string about the
+ * certificate.
+ *
+ * \param buf Buffer to write to
+ * \param size Maximum size of buffer
+ * \param prefix A line prefix
+ * \param crt The X509 certificate to represent
+ *
+ * \return The amount of data written to the buffer, or -1 in
+ * case of an error.
+ */
+int x509parse_cert_info( char *buf, size_t size, const char *prefix,
+ const x509_cert *crt );
+
+/**
+ * \brief Returns an informational string about the
+ * CRL.
+ *
+ * \param buf Buffer to write to
+ * \param size Maximum size of buffer
+ * \param prefix A line prefix
+ * \param crl The X509 CRL to represent
+ *
+ * \return The amount of data written to the buffer, or -1 in
+ * case of an error.
+ */
+int x509parse_crl_info( char *buf, size_t size, const char *prefix,
+ const x509_crl *crl );
+
+/**
+ * \brief Give an known OID, return its descriptive string.
+ *
+ * \param oid buffer containing the oid
+ *
+ * \return Return a string if the OID is known,
+ * or NULL otherwise.
+ */
+const char *x509_oid_get_description( x509_buf *oid );
+
+/*
+ * \brief Give an OID, return a string version of its OID number.
+ *
+ * \param buf Buffer to write to
+ * \param size Maximum size of buffer
+ * \param oid Buffer containing the OID
+ *
+ * \return The amount of data written to the buffer, or -1 in
+ * case of an error.
+ */
+int x509_oid_get_numeric_string( char *buf, size_t size, x509_buf *oid );
+
+/**
+ * \brief Check a given x509_time against the system time and check
+ * if it is valid.
+ *
+ * \param time x509_time to check
+ *
+ * \return Return 0 if the x509_time is still valid,
+ * or 1 otherwise.
+ */
+int x509parse_time_expired( const x509_time *time );
+
+/**
+ * \name Functions to verify a certificate
+ * \{
+ */
+/** \ingroup x509_module */
+/**
+ * \brief Verify the certificate signature
+ *
+ * \param crt a certificate to be verified
+ * \param trust_ca the trusted CA chain
+ * \param ca_crl the CRL chain for trusted CA's
+ * \param cn expected Common Name (can be set to
+ * NULL if the CN must not be verified)
+ * \param flags result of the verification
+ * \param f_vrfy verification function
+ * \param p_vrfy verification parameter
+ *
+ * \return 0 if successful or POLARSSL_ERR_X509_SIG_VERIFY_FAILED,
+ * in which case *flags will have one or more of
+ * the following values set:
+ * BADCERT_EXPIRED --
+ * BADCERT_REVOKED --
+ * BADCERT_CN_MISMATCH --
+ * BADCERT_NOT_TRUSTED
+ *
+ * \note TODO: add two arguments, depth and crl
+ */
+int x509parse_verify( x509_cert *crt,
+ x509_cert *trust_ca,
+ x509_crl *ca_crl,
+ const char *cn, int *flags,
+ int (*f_vrfy)(void *, x509_cert *, int, int),
+ void *p_vrfy );
+
+/**
+ * \brief Verify the certificate signature
+ *
+ * \param crt a certificate to be verified
+ * \param crl the CRL to verify against
+ *
+ * \return 1 if the certificate is revoked, 0 otherwise
+ *
+ */
+int x509parse_revoked( const x509_cert *crt, const x509_crl *crl );
+
+/** \} name Functions to verify a certificate */
+
+
+
+/**
+ * \name Functions to clear a certificate, CRL or private RSA key
+ * \{
+ */
+/** \ingroup x509_module */
+/**
+ * \brief Unallocate all certificate data
+ *
+ * \param crt Certificate chain to free
+ */
+void x509_free( x509_cert *crt );
+
+/** \ingroup x509_module */
+/**
+ * \brief Unallocate all CRL data
+ *
+ * \param crl CRL chain to free
+ */
+void x509_crl_free( x509_crl *crl );
+
+/** \} name Functions to clear a certificate, CRL or private RSA key */
+
+
+/**
+ * \brief Checkup routine
+ *
+ * \return 0 if successful, or 1 if the test failed
+ */
+int x509_self_test( int verbose );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* x509.h */
--- /dev/null
+/**
+ * \file xtea.h
+ *
+ * \brief XTEA block cipher (32-bit)
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#ifndef POLARSSL_XTEA_H
+#define POLARSSL_XTEA_H
+
+#include <string.h>
+
+#ifdef _MSC_VER
+#include <basetsd.h>
+typedef UINT32 uint32_t;
+#else
+#include <inttypes.h>
+#endif
+
+#define XTEA_ENCRYPT 1
+#define XTEA_DECRYPT 0
+
+#define POLARSSL_ERR_XTEA_INVALID_INPUT_LENGTH -0x0028 /**< The data input has an invalid length. */
+
+/**
+ * \brief XTEA context structure
+ */
+typedef struct
+{
+ uint32_t k[4]; /*!< key */
+}
+xtea_context;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief XTEA key schedule
+ *
+ * \param ctx XTEA context to be initialized
+ * \param key the secret key
+ */
+void xtea_setup( xtea_context *ctx, unsigned char key[16] );
+
+/**
+ * \brief XTEA cipher function
+ *
+ * \param ctx XTEA context
+ * \param mode XTEA_ENCRYPT or XTEA_DECRYPT
+ * \param input 8-byte input block
+ * \param output 8-byte output block
+ *
+ * \return 0 if successful
+ */
+int xtea_crypt_ecb( xtea_context *ctx,
+ int mode,
+ unsigned char input[8],
+ unsigned char output[8] );
+
+/**
+ * \brief XTEA CBC cipher function
+ *
+ * \param ctx XTEA context
+ * \param mode XTEA_ENCRYPT or XTEA_DECRYPT
+ * \param length the length of input, multiple of 8
+ * \param iv initialization vector for CBC mode
+ * \param input input block
+ * \param output output block
+ *
+ * \return 0 if successful,
+ * POLARSSL_ERR_XTEA_INVALID_INPUT_LENGTH if the length % 8 != 0
+ */
+int xtea_crypt_cbc( xtea_context *ctx,
+ int mode,
+ size_t length,
+ unsigned char iv[8],
+ unsigned char *input,
+ unsigned char *output);
+
+/*
+ * \brief Checkup routine
+ *
+ * \return 0 if successful, or 1 if the test failed
+ */
+int xtea_self_test( int verbose );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* xtea.h */
--- /dev/null
+option(USE_SHARED_POLARSSL_LIBRARY "Build PolarSSL as a shared library." OFF)
+
+set(src
+ aes.c
+ arc4.c
+ asn1parse.c
+ base64.c
+ bignum.c
+ camellia.c
+ certs.c
+ cipher.c
+ cipher_wrap.c
+ ctr_drbg.c
+ debug.c
+ des.c
+ dhm.c
+ entropy.c
+ entropy_poll.c
+ error.c
+ havege.c
+ md.c
+ md_wrap.c
+ md2.c
+ md4.c
+ md5.c
+ net.c
+ padlock.c
+ pem.c
+ pkcs11.c
+ rsa.c
+ sha1.c
+ sha2.c
+ sha4.c
+ ssl_cli.c
+ ssl_srv.c
+ ssl_tls.c
+ timing.c
+ version.c
+ x509parse.c
+ xtea.c
+)
+
+if(NOT USE_SHARED_POLARSSL_LIBRARY)
+
+add_library(polarssl STATIC ${src})
+
+else(NOT USE_SHARED_POLARSSL_LIBRARY)
+
+add_library(polarssl SHARED ${src})
+set_target_properties(polarssl PROPERTIES VERSION 1.1.1 SOVERSION 1)
+
+endif(NOT USE_SHARED_POLARSSL_LIBRARY)
+
+install(TARGETS polarssl
+ DESTINATION ${LIB_INSTALL_DIR}
+ PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_EXECUTE WORLD_READ WORLD_EXECUTE)
--- /dev/null
+
+# Also see "include/polarssl/config.h"
+
+CFLAGS += -I../include -D_FILE_OFFSET_BITS=64 -Wall -W -Wdeclaration-after-statement
+OFLAGS = -O
+
+# MicroBlaze specific options:
+# CFLAGS += -mno-xl-soft-mul -mxl-barrel-shift
+
+# To compile on Plan9:
+# CFLAGS += -D_BSD_EXTENSION
+
+# To compile as a shared library:
+# CFLAGS += -fPIC
+
+SONAME=libpolarssl.so.0
+
+DLEXT=so
+# OSX shared library extension:
+# DLEXT=dylib
+
+# Windows shared library extension:
+# DLEXT=dll
+
+OBJS= aes.o arc4.o asn1parse.o \
+ base64.o bignum.o camellia.o \
+ certs.o cipher.o cipher_wrap.o \
+ ctr_drbg.o debug.o des.o \
+ dhm.o entropy.o entropy_poll.o \
+ error.o havege.o \
+ md.o md_wrap.o md2.o \
+ md4.o md5.o net.o \
+ padlock.o pem.o pkcs11.o \
+ rsa.o sha1.o sha2.o \
+ sha4.o ssl_cli.o ssl_srv.o \
+ ssl_tls.o timing.o version.o \
+ x509parse.o xtea.o
+
+
+.SILENT:
+
+all: static
+
+static: libpolarssl.a
+
+shared: libpolarssl.$(DLEXT)
+
+libpolarssl.a: $(OBJS)
+ echo " AR $@"
+ $(AR) r $@ $(OBJS)
+ echo " RL $@"
+ $(AR) s $@
+
+libpolarssl.so: libpolarssl.a
+ echo " LD $@"
+ $(CC) ${LDFLAGS} -shared -Wl,-soname,$(SONAME) -o $@ $(OBJS)
+
+libpolarssl.dylib: libpolarssl.a
+ echo " LD $@"
+ $(CC) ${LDFLAGS} -dynamiclib -o $@ $(OBJS)
+
+libpolarssl.dll: libpolarssl.a
+ echo " LD $@"
+ $(CC) -shared -Wl,-soname,$@ -o $@ $(OBJS) -lws2_32 -lwinmm -lgdi32
+
+.c.o:
+ echo " CC $<"
+ $(CC) $(CFLAGS) $(OFLAGS) -c $<
+
+clean:
+ rm -f *.o libpolarssl.*
+
--- /dev/null
+/*
+ * FIPS-197 compliant AES implementation
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+/*
+ * The AES block cipher was designed by Vincent Rijmen and Joan Daemen.
+ *
+ * http://csrc.nist.gov/encryption/aes/rijndael/Rijndael.pdf
+ * http://csrc.nist.gov/publications/fips/fips197/fips-197.pdf
+ */
+
+#include "polarssl/config.h"
+
+#if defined(POLARSSL_AES_C)
+
+#include "polarssl/aes.h"
+#include "polarssl/padlock.h"
+
+/*
+ * 32-bit integer manipulation macros (little endian)
+ */
+#ifndef GET_ULONG_LE
+#define GET_ULONG_LE(n,b,i) \
+{ \
+ (n) = ( (unsigned long) (b)[(i) ] ) \
+ | ( (unsigned long) (b)[(i) + 1] << 8 ) \
+ | ( (unsigned long) (b)[(i) + 2] << 16 ) \
+ | ( (unsigned long) (b)[(i) + 3] << 24 ); \
+}
+#endif
+
+#ifndef PUT_ULONG_LE
+#define PUT_ULONG_LE(n,b,i) \
+{ \
+ (b)[(i) ] = (unsigned char) ( (n) ); \
+ (b)[(i) + 1] = (unsigned char) ( (n) >> 8 ); \
+ (b)[(i) + 2] = (unsigned char) ( (n) >> 16 ); \
+ (b)[(i) + 3] = (unsigned char) ( (n) >> 24 ); \
+}
+#endif
+
+#if defined(POLARSSL_AES_ROM_TABLES)
+/*
+ * Forward S-box
+ */
+static const unsigned char FSb[256] =
+{
+ 0x63, 0x7C, 0x77, 0x7B, 0xF2, 0x6B, 0x6F, 0xC5,
+ 0x30, 0x01, 0x67, 0x2B, 0xFE, 0xD7, 0xAB, 0x76,
+ 0xCA, 0x82, 0xC9, 0x7D, 0xFA, 0x59, 0x47, 0xF0,
+ 0xAD, 0xD4, 0xA2, 0xAF, 0x9C, 0xA4, 0x72, 0xC0,
+ 0xB7, 0xFD, 0x93, 0x26, 0x36, 0x3F, 0xF7, 0xCC,
+ 0x34, 0xA5, 0xE5, 0xF1, 0x71, 0xD8, 0x31, 0x15,
+ 0x04, 0xC7, 0x23, 0xC3, 0x18, 0x96, 0x05, 0x9A,
+ 0x07, 0x12, 0x80, 0xE2, 0xEB, 0x27, 0xB2, 0x75,
+ 0x09, 0x83, 0x2C, 0x1A, 0x1B, 0x6E, 0x5A, 0xA0,
+ 0x52, 0x3B, 0xD6, 0xB3, 0x29, 0xE3, 0x2F, 0x84,
+ 0x53, 0xD1, 0x00, 0xED, 0x20, 0xFC, 0xB1, 0x5B,
+ 0x6A, 0xCB, 0xBE, 0x39, 0x4A, 0x4C, 0x58, 0xCF,
+ 0xD0, 0xEF, 0xAA, 0xFB, 0x43, 0x4D, 0x33, 0x85,
+ 0x45, 0xF9, 0x02, 0x7F, 0x50, 0x3C, 0x9F, 0xA8,
+ 0x51, 0xA3, 0x40, 0x8F, 0x92, 0x9D, 0x38, 0xF5,
+ 0xBC, 0xB6, 0xDA, 0x21, 0x10, 0xFF, 0xF3, 0xD2,
+ 0xCD, 0x0C, 0x13, 0xEC, 0x5F, 0x97, 0x44, 0x17,
+ 0xC4, 0xA7, 0x7E, 0x3D, 0x64, 0x5D, 0x19, 0x73,
+ 0x60, 0x81, 0x4F, 0xDC, 0x22, 0x2A, 0x90, 0x88,
+ 0x46, 0xEE, 0xB8, 0x14, 0xDE, 0x5E, 0x0B, 0xDB,
+ 0xE0, 0x32, 0x3A, 0x0A, 0x49, 0x06, 0x24, 0x5C,
+ 0xC2, 0xD3, 0xAC, 0x62, 0x91, 0x95, 0xE4, 0x79,
+ 0xE7, 0xC8, 0x37, 0x6D, 0x8D, 0xD5, 0x4E, 0xA9,
+ 0x6C, 0x56, 0xF4, 0xEA, 0x65, 0x7A, 0xAE, 0x08,
+ 0xBA, 0x78, 0x25, 0x2E, 0x1C, 0xA6, 0xB4, 0xC6,
+ 0xE8, 0xDD, 0x74, 0x1F, 0x4B, 0xBD, 0x8B, 0x8A,
+ 0x70, 0x3E, 0xB5, 0x66, 0x48, 0x03, 0xF6, 0x0E,
+ 0x61, 0x35, 0x57, 0xB9, 0x86, 0xC1, 0x1D, 0x9E,
+ 0xE1, 0xF8, 0x98, 0x11, 0x69, 0xD9, 0x8E, 0x94,
+ 0x9B, 0x1E, 0x87, 0xE9, 0xCE, 0x55, 0x28, 0xDF,
+ 0x8C, 0xA1, 0x89, 0x0D, 0xBF, 0xE6, 0x42, 0x68,
+ 0x41, 0x99, 0x2D, 0x0F, 0xB0, 0x54, 0xBB, 0x16
+};
+
+/*
+ * Forward tables
+ */
+#define FT \
+\
+ V(A5,63,63,C6), V(84,7C,7C,F8), V(99,77,77,EE), V(8D,7B,7B,F6), \
+ V(0D,F2,F2,FF), V(BD,6B,6B,D6), V(B1,6F,6F,DE), V(54,C5,C5,91), \
+ V(50,30,30,60), V(03,01,01,02), V(A9,67,67,CE), V(7D,2B,2B,56), \
+ V(19,FE,FE,E7), V(62,D7,D7,B5), V(E6,AB,AB,4D), V(9A,76,76,EC), \
+ V(45,CA,CA,8F), V(9D,82,82,1F), V(40,C9,C9,89), V(87,7D,7D,FA), \
+ V(15,FA,FA,EF), V(EB,59,59,B2), V(C9,47,47,8E), V(0B,F0,F0,FB), \
+ V(EC,AD,AD,41), V(67,D4,D4,B3), V(FD,A2,A2,5F), V(EA,AF,AF,45), \
+ V(BF,9C,9C,23), V(F7,A4,A4,53), V(96,72,72,E4), V(5B,C0,C0,9B), \
+ V(C2,B7,B7,75), V(1C,FD,FD,E1), V(AE,93,93,3D), V(6A,26,26,4C), \
+ V(5A,36,36,6C), V(41,3F,3F,7E), V(02,F7,F7,F5), V(4F,CC,CC,83), \
+ V(5C,34,34,68), V(F4,A5,A5,51), V(34,E5,E5,D1), V(08,F1,F1,F9), \
+ V(93,71,71,E2), V(73,D8,D8,AB), V(53,31,31,62), V(3F,15,15,2A), \
+ V(0C,04,04,08), V(52,C7,C7,95), V(65,23,23,46), V(5E,C3,C3,9D), \
+ V(28,18,18,30), V(A1,96,96,37), V(0F,05,05,0A), V(B5,9A,9A,2F), \
+ V(09,07,07,0E), V(36,12,12,24), V(9B,80,80,1B), V(3D,E2,E2,DF), \
+ V(26,EB,EB,CD), V(69,27,27,4E), V(CD,B2,B2,7F), V(9F,75,75,EA), \
+ V(1B,09,09,12), V(9E,83,83,1D), V(74,2C,2C,58), V(2E,1A,1A,34), \
+ V(2D,1B,1B,36), V(B2,6E,6E,DC), V(EE,5A,5A,B4), V(FB,A0,A0,5B), \
+ V(F6,52,52,A4), V(4D,3B,3B,76), V(61,D6,D6,B7), V(CE,B3,B3,7D), \
+ V(7B,29,29,52), V(3E,E3,E3,DD), V(71,2F,2F,5E), V(97,84,84,13), \
+ V(F5,53,53,A6), V(68,D1,D1,B9), V(00,00,00,00), V(2C,ED,ED,C1), \
+ V(60,20,20,40), V(1F,FC,FC,E3), V(C8,B1,B1,79), V(ED,5B,5B,B6), \
+ V(BE,6A,6A,D4), V(46,CB,CB,8D), V(D9,BE,BE,67), V(4B,39,39,72), \
+ V(DE,4A,4A,94), V(D4,4C,4C,98), V(E8,58,58,B0), V(4A,CF,CF,85), \
+ V(6B,D0,D0,BB), V(2A,EF,EF,C5), V(E5,AA,AA,4F), V(16,FB,FB,ED), \
+ V(C5,43,43,86), V(D7,4D,4D,9A), V(55,33,33,66), V(94,85,85,11), \
+ V(CF,45,45,8A), V(10,F9,F9,E9), V(06,02,02,04), V(81,7F,7F,FE), \
+ V(F0,50,50,A0), V(44,3C,3C,78), V(BA,9F,9F,25), V(E3,A8,A8,4B), \
+ V(F3,51,51,A2), V(FE,A3,A3,5D), V(C0,40,40,80), V(8A,8F,8F,05), \
+ V(AD,92,92,3F), V(BC,9D,9D,21), V(48,38,38,70), V(04,F5,F5,F1), \
+ V(DF,BC,BC,63), V(C1,B6,B6,77), V(75,DA,DA,AF), V(63,21,21,42), \
+ V(30,10,10,20), V(1A,FF,FF,E5), V(0E,F3,F3,FD), V(6D,D2,D2,BF), \
+ V(4C,CD,CD,81), V(14,0C,0C,18), V(35,13,13,26), V(2F,EC,EC,C3), \
+ V(E1,5F,5F,BE), V(A2,97,97,35), V(CC,44,44,88), V(39,17,17,2E), \
+ V(57,C4,C4,93), V(F2,A7,A7,55), V(82,7E,7E,FC), V(47,3D,3D,7A), \
+ V(AC,64,64,C8), V(E7,5D,5D,BA), V(2B,19,19,32), V(95,73,73,E6), \
+ V(A0,60,60,C0), V(98,81,81,19), V(D1,4F,4F,9E), V(7F,DC,DC,A3), \
+ V(66,22,22,44), V(7E,2A,2A,54), V(AB,90,90,3B), V(83,88,88,0B), \
+ V(CA,46,46,8C), V(29,EE,EE,C7), V(D3,B8,B8,6B), V(3C,14,14,28), \
+ V(79,DE,DE,A7), V(E2,5E,5E,BC), V(1D,0B,0B,16), V(76,DB,DB,AD), \
+ V(3B,E0,E0,DB), V(56,32,32,64), V(4E,3A,3A,74), V(1E,0A,0A,14), \
+ V(DB,49,49,92), V(0A,06,06,0C), V(6C,24,24,48), V(E4,5C,5C,B8), \
+ V(5D,C2,C2,9F), V(6E,D3,D3,BD), V(EF,AC,AC,43), V(A6,62,62,C4), \
+ V(A8,91,91,39), V(A4,95,95,31), V(37,E4,E4,D3), V(8B,79,79,F2), \
+ V(32,E7,E7,D5), V(43,C8,C8,8B), V(59,37,37,6E), V(B7,6D,6D,DA), \
+ V(8C,8D,8D,01), V(64,D5,D5,B1), V(D2,4E,4E,9C), V(E0,A9,A9,49), \
+ V(B4,6C,6C,D8), V(FA,56,56,AC), V(07,F4,F4,F3), V(25,EA,EA,CF), \
+ V(AF,65,65,CA), V(8E,7A,7A,F4), V(E9,AE,AE,47), V(18,08,08,10), \
+ V(D5,BA,BA,6F), V(88,78,78,F0), V(6F,25,25,4A), V(72,2E,2E,5C), \
+ V(24,1C,1C,38), V(F1,A6,A6,57), V(C7,B4,B4,73), V(51,C6,C6,97), \
+ V(23,E8,E8,CB), V(7C,DD,DD,A1), V(9C,74,74,E8), V(21,1F,1F,3E), \
+ V(DD,4B,4B,96), V(DC,BD,BD,61), V(86,8B,8B,0D), V(85,8A,8A,0F), \
+ V(90,70,70,E0), V(42,3E,3E,7C), V(C4,B5,B5,71), V(AA,66,66,CC), \
+ V(D8,48,48,90), V(05,03,03,06), V(01,F6,F6,F7), V(12,0E,0E,1C), \
+ V(A3,61,61,C2), V(5F,35,35,6A), V(F9,57,57,AE), V(D0,B9,B9,69), \
+ V(91,86,86,17), V(58,C1,C1,99), V(27,1D,1D,3A), V(B9,9E,9E,27), \
+ V(38,E1,E1,D9), V(13,F8,F8,EB), V(B3,98,98,2B), V(33,11,11,22), \
+ V(BB,69,69,D2), V(70,D9,D9,A9), V(89,8E,8E,07), V(A7,94,94,33), \
+ V(B6,9B,9B,2D), V(22,1E,1E,3C), V(92,87,87,15), V(20,E9,E9,C9), \
+ V(49,CE,CE,87), V(FF,55,55,AA), V(78,28,28,50), V(7A,DF,DF,A5), \
+ V(8F,8C,8C,03), V(F8,A1,A1,59), V(80,89,89,09), V(17,0D,0D,1A), \
+ V(DA,BF,BF,65), V(31,E6,E6,D7), V(C6,42,42,84), V(B8,68,68,D0), \
+ V(C3,41,41,82), V(B0,99,99,29), V(77,2D,2D,5A), V(11,0F,0F,1E), \
+ V(CB,B0,B0,7B), V(FC,54,54,A8), V(D6,BB,BB,6D), V(3A,16,16,2C)
+
+#define V(a,b,c,d) 0x##a##b##c##d
+static const unsigned long FT0[256] = { FT };
+#undef V
+
+#define V(a,b,c,d) 0x##b##c##d##a
+static const unsigned long FT1[256] = { FT };
+#undef V
+
+#define V(a,b,c,d) 0x##c##d##a##b
+static const unsigned long FT2[256] = { FT };
+#undef V
+
+#define V(a,b,c,d) 0x##d##a##b##c
+static const unsigned long FT3[256] = { FT };
+#undef V
+
+#undef FT
+
+/*
+ * Reverse S-box
+ */
+static const unsigned char RSb[256] =
+{
+ 0x52, 0x09, 0x6A, 0xD5, 0x30, 0x36, 0xA5, 0x38,
+ 0xBF, 0x40, 0xA3, 0x9E, 0x81, 0xF3, 0xD7, 0xFB,
+ 0x7C, 0xE3, 0x39, 0x82, 0x9B, 0x2F, 0xFF, 0x87,
+ 0x34, 0x8E, 0x43, 0x44, 0xC4, 0xDE, 0xE9, 0xCB,
+ 0x54, 0x7B, 0x94, 0x32, 0xA6, 0xC2, 0x23, 0x3D,
+ 0xEE, 0x4C, 0x95, 0x0B, 0x42, 0xFA, 0xC3, 0x4E,
+ 0x08, 0x2E, 0xA1, 0x66, 0x28, 0xD9, 0x24, 0xB2,
+ 0x76, 0x5B, 0xA2, 0x49, 0x6D, 0x8B, 0xD1, 0x25,
+ 0x72, 0xF8, 0xF6, 0x64, 0x86, 0x68, 0x98, 0x16,
+ 0xD4, 0xA4, 0x5C, 0xCC, 0x5D, 0x65, 0xB6, 0x92,
+ 0x6C, 0x70, 0x48, 0x50, 0xFD, 0xED, 0xB9, 0xDA,
+ 0x5E, 0x15, 0x46, 0x57, 0xA7, 0x8D, 0x9D, 0x84,
+ 0x90, 0xD8, 0xAB, 0x00, 0x8C, 0xBC, 0xD3, 0x0A,
+ 0xF7, 0xE4, 0x58, 0x05, 0xB8, 0xB3, 0x45, 0x06,
+ 0xD0, 0x2C, 0x1E, 0x8F, 0xCA, 0x3F, 0x0F, 0x02,
+ 0xC1, 0xAF, 0xBD, 0x03, 0x01, 0x13, 0x8A, 0x6B,
+ 0x3A, 0x91, 0x11, 0x41, 0x4F, 0x67, 0xDC, 0xEA,
+ 0x97, 0xF2, 0xCF, 0xCE, 0xF0, 0xB4, 0xE6, 0x73,
+ 0x96, 0xAC, 0x74, 0x22, 0xE7, 0xAD, 0x35, 0x85,
+ 0xE2, 0xF9, 0x37, 0xE8, 0x1C, 0x75, 0xDF, 0x6E,
+ 0x47, 0xF1, 0x1A, 0x71, 0x1D, 0x29, 0xC5, 0x89,
+ 0x6F, 0xB7, 0x62, 0x0E, 0xAA, 0x18, 0xBE, 0x1B,
+ 0xFC, 0x56, 0x3E, 0x4B, 0xC6, 0xD2, 0x79, 0x20,
+ 0x9A, 0xDB, 0xC0, 0xFE, 0x78, 0xCD, 0x5A, 0xF4,
+ 0x1F, 0xDD, 0xA8, 0x33, 0x88, 0x07, 0xC7, 0x31,
+ 0xB1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xEC, 0x5F,
+ 0x60, 0x51, 0x7F, 0xA9, 0x19, 0xB5, 0x4A, 0x0D,
+ 0x2D, 0xE5, 0x7A, 0x9F, 0x93, 0xC9, 0x9C, 0xEF,
+ 0xA0, 0xE0, 0x3B, 0x4D, 0xAE, 0x2A, 0xF5, 0xB0,
+ 0xC8, 0xEB, 0xBB, 0x3C, 0x83, 0x53, 0x99, 0x61,
+ 0x17, 0x2B, 0x04, 0x7E, 0xBA, 0x77, 0xD6, 0x26,
+ 0xE1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0C, 0x7D
+};
+
+/*
+ * Reverse tables
+ */
+#define RT \
+\
+ V(50,A7,F4,51), V(53,65,41,7E), V(C3,A4,17,1A), V(96,5E,27,3A), \
+ V(CB,6B,AB,3B), V(F1,45,9D,1F), V(AB,58,FA,AC), V(93,03,E3,4B), \
+ V(55,FA,30,20), V(F6,6D,76,AD), V(91,76,CC,88), V(25,4C,02,F5), \
+ V(FC,D7,E5,4F), V(D7,CB,2A,C5), V(80,44,35,26), V(8F,A3,62,B5), \
+ V(49,5A,B1,DE), V(67,1B,BA,25), V(98,0E,EA,45), V(E1,C0,FE,5D), \
+ V(02,75,2F,C3), V(12,F0,4C,81), V(A3,97,46,8D), V(C6,F9,D3,6B), \
+ V(E7,5F,8F,03), V(95,9C,92,15), V(EB,7A,6D,BF), V(DA,59,52,95), \
+ V(2D,83,BE,D4), V(D3,21,74,58), V(29,69,E0,49), V(44,C8,C9,8E), \
+ V(6A,89,C2,75), V(78,79,8E,F4), V(6B,3E,58,99), V(DD,71,B9,27), \
+ V(B6,4F,E1,BE), V(17,AD,88,F0), V(66,AC,20,C9), V(B4,3A,CE,7D), \
+ V(18,4A,DF,63), V(82,31,1A,E5), V(60,33,51,97), V(45,7F,53,62), \
+ V(E0,77,64,B1), V(84,AE,6B,BB), V(1C,A0,81,FE), V(94,2B,08,F9), \
+ V(58,68,48,70), V(19,FD,45,8F), V(87,6C,DE,94), V(B7,F8,7B,52), \
+ V(23,D3,73,AB), V(E2,02,4B,72), V(57,8F,1F,E3), V(2A,AB,55,66), \
+ V(07,28,EB,B2), V(03,C2,B5,2F), V(9A,7B,C5,86), V(A5,08,37,D3), \
+ V(F2,87,28,30), V(B2,A5,BF,23), V(BA,6A,03,02), V(5C,82,16,ED), \
+ V(2B,1C,CF,8A), V(92,B4,79,A7), V(F0,F2,07,F3), V(A1,E2,69,4E), \
+ V(CD,F4,DA,65), V(D5,BE,05,06), V(1F,62,34,D1), V(8A,FE,A6,C4), \
+ V(9D,53,2E,34), V(A0,55,F3,A2), V(32,E1,8A,05), V(75,EB,F6,A4), \
+ V(39,EC,83,0B), V(AA,EF,60,40), V(06,9F,71,5E), V(51,10,6E,BD), \
+ V(F9,8A,21,3E), V(3D,06,DD,96), V(AE,05,3E,DD), V(46,BD,E6,4D), \
+ V(B5,8D,54,91), V(05,5D,C4,71), V(6F,D4,06,04), V(FF,15,50,60), \
+ V(24,FB,98,19), V(97,E9,BD,D6), V(CC,43,40,89), V(77,9E,D9,67), \
+ V(BD,42,E8,B0), V(88,8B,89,07), V(38,5B,19,E7), V(DB,EE,C8,79), \
+ V(47,0A,7C,A1), V(E9,0F,42,7C), V(C9,1E,84,F8), V(00,00,00,00), \
+ V(83,86,80,09), V(48,ED,2B,32), V(AC,70,11,1E), V(4E,72,5A,6C), \
+ V(FB,FF,0E,FD), V(56,38,85,0F), V(1E,D5,AE,3D), V(27,39,2D,36), \
+ V(64,D9,0F,0A), V(21,A6,5C,68), V(D1,54,5B,9B), V(3A,2E,36,24), \
+ V(B1,67,0A,0C), V(0F,E7,57,93), V(D2,96,EE,B4), V(9E,91,9B,1B), \
+ V(4F,C5,C0,80), V(A2,20,DC,61), V(69,4B,77,5A), V(16,1A,12,1C), \
+ V(0A,BA,93,E2), V(E5,2A,A0,C0), V(43,E0,22,3C), V(1D,17,1B,12), \
+ V(0B,0D,09,0E), V(AD,C7,8B,F2), V(B9,A8,B6,2D), V(C8,A9,1E,14), \
+ V(85,19,F1,57), V(4C,07,75,AF), V(BB,DD,99,EE), V(FD,60,7F,A3), \
+ V(9F,26,01,F7), V(BC,F5,72,5C), V(C5,3B,66,44), V(34,7E,FB,5B), \
+ V(76,29,43,8B), V(DC,C6,23,CB), V(68,FC,ED,B6), V(63,F1,E4,B8), \
+ V(CA,DC,31,D7), V(10,85,63,42), V(40,22,97,13), V(20,11,C6,84), \
+ V(7D,24,4A,85), V(F8,3D,BB,D2), V(11,32,F9,AE), V(6D,A1,29,C7), \
+ V(4B,2F,9E,1D), V(F3,30,B2,DC), V(EC,52,86,0D), V(D0,E3,C1,77), \
+ V(6C,16,B3,2B), V(99,B9,70,A9), V(FA,48,94,11), V(22,64,E9,47), \
+ V(C4,8C,FC,A8), V(1A,3F,F0,A0), V(D8,2C,7D,56), V(EF,90,33,22), \
+ V(C7,4E,49,87), V(C1,D1,38,D9), V(FE,A2,CA,8C), V(36,0B,D4,98), \
+ V(CF,81,F5,A6), V(28,DE,7A,A5), V(26,8E,B7,DA), V(A4,BF,AD,3F), \
+ V(E4,9D,3A,2C), V(0D,92,78,50), V(9B,CC,5F,6A), V(62,46,7E,54), \
+ V(C2,13,8D,F6), V(E8,B8,D8,90), V(5E,F7,39,2E), V(F5,AF,C3,82), \
+ V(BE,80,5D,9F), V(7C,93,D0,69), V(A9,2D,D5,6F), V(B3,12,25,CF), \
+ V(3B,99,AC,C8), V(A7,7D,18,10), V(6E,63,9C,E8), V(7B,BB,3B,DB), \
+ V(09,78,26,CD), V(F4,18,59,6E), V(01,B7,9A,EC), V(A8,9A,4F,83), \
+ V(65,6E,95,E6), V(7E,E6,FF,AA), V(08,CF,BC,21), V(E6,E8,15,EF), \
+ V(D9,9B,E7,BA), V(CE,36,6F,4A), V(D4,09,9F,EA), V(D6,7C,B0,29), \
+ V(AF,B2,A4,31), V(31,23,3F,2A), V(30,94,A5,C6), V(C0,66,A2,35), \
+ V(37,BC,4E,74), V(A6,CA,82,FC), V(B0,D0,90,E0), V(15,D8,A7,33), \
+ V(4A,98,04,F1), V(F7,DA,EC,41), V(0E,50,CD,7F), V(2F,F6,91,17), \
+ V(8D,D6,4D,76), V(4D,B0,EF,43), V(54,4D,AA,CC), V(DF,04,96,E4), \
+ V(E3,B5,D1,9E), V(1B,88,6A,4C), V(B8,1F,2C,C1), V(7F,51,65,46), \
+ V(04,EA,5E,9D), V(5D,35,8C,01), V(73,74,87,FA), V(2E,41,0B,FB), \
+ V(5A,1D,67,B3), V(52,D2,DB,92), V(33,56,10,E9), V(13,47,D6,6D), \
+ V(8C,61,D7,9A), V(7A,0C,A1,37), V(8E,14,F8,59), V(89,3C,13,EB), \
+ V(EE,27,A9,CE), V(35,C9,61,B7), V(ED,E5,1C,E1), V(3C,B1,47,7A), \
+ V(59,DF,D2,9C), V(3F,73,F2,55), V(79,CE,14,18), V(BF,37,C7,73), \
+ V(EA,CD,F7,53), V(5B,AA,FD,5F), V(14,6F,3D,DF), V(86,DB,44,78), \
+ V(81,F3,AF,CA), V(3E,C4,68,B9), V(2C,34,24,38), V(5F,40,A3,C2), \
+ V(72,C3,1D,16), V(0C,25,E2,BC), V(8B,49,3C,28), V(41,95,0D,FF), \
+ V(71,01,A8,39), V(DE,B3,0C,08), V(9C,E4,B4,D8), V(90,C1,56,64), \
+ V(61,84,CB,7B), V(70,B6,32,D5), V(74,5C,6C,48), V(42,57,B8,D0)
+
+#define V(a,b,c,d) 0x##a##b##c##d
+static const unsigned long RT0[256] = { RT };
+#undef V
+
+#define V(a,b,c,d) 0x##b##c##d##a
+static const unsigned long RT1[256] = { RT };
+#undef V
+
+#define V(a,b,c,d) 0x##c##d##a##b
+static const unsigned long RT2[256] = { RT };
+#undef V
+
+#define V(a,b,c,d) 0x##d##a##b##c
+static const unsigned long RT3[256] = { RT };
+#undef V
+
+#undef RT
+
+/*
+ * Round constants
+ */
+static const unsigned long RCON[10] =
+{
+ 0x00000001, 0x00000002, 0x00000004, 0x00000008,
+ 0x00000010, 0x00000020, 0x00000040, 0x00000080,
+ 0x0000001B, 0x00000036
+};
+
+#else
+
+/*
+ * Forward S-box & tables
+ */
+static unsigned char FSb[256];
+static unsigned long FT0[256];
+static unsigned long FT1[256];
+static unsigned long FT2[256];
+static unsigned long FT3[256];
+
+/*
+ * Reverse S-box & tables
+ */
+static unsigned char RSb[256];
+static unsigned long RT0[256];
+static unsigned long RT1[256];
+static unsigned long RT2[256];
+static unsigned long RT3[256];
+
+/*
+ * Round constants
+ */
+static unsigned long RCON[10];
+
+/*
+ * Tables generation code
+ */
+#define ROTL8(x) ( ( x << 8 ) & 0xFFFFFFFF ) | ( x >> 24 )
+#define XTIME(x) ( ( x << 1 ) ^ ( ( x & 0x80 ) ? 0x1B : 0x00 ) )
+#define MUL(x,y) ( ( x && y ) ? pow[(log[x]+log[y]) % 255] : 0 )
+
+static int aes_init_done = 0;
+
+static void aes_gen_tables( void )
+{
+ int i, x, y, z;
+ int pow[256];
+ int log[256];
+
+ /*
+ * compute pow and log tables over GF(2^8)
+ */
+ for( i = 0, x = 1; i < 256; i++ )
+ {
+ pow[i] = x;
+ log[x] = i;
+ x = ( x ^ XTIME( x ) ) & 0xFF;
+ }
+
+ /*
+ * calculate the round constants
+ */
+ for( i = 0, x = 1; i < 10; i++ )
+ {
+ RCON[i] = (unsigned long) x;
+ x = XTIME( x ) & 0xFF;
+ }
+
+ /*
+ * generate the forward and reverse S-boxes
+ */
+ FSb[0x00] = 0x63;
+ RSb[0x63] = 0x00;
+
+ for( i = 1; i < 256; i++ )
+ {
+ x = pow[255 - log[i]];
+
+ y = x; y = ( (y << 1) | (y >> 7) ) & 0xFF;
+ x ^= y; y = ( (y << 1) | (y >> 7) ) & 0xFF;
+ x ^= y; y = ( (y << 1) | (y >> 7) ) & 0xFF;
+ x ^= y; y = ( (y << 1) | (y >> 7) ) & 0xFF;
+ x ^= y ^ 0x63;
+
+ FSb[i] = (unsigned char) x;
+ RSb[x] = (unsigned char) i;
+ }
+
+ /*
+ * generate the forward and reverse tables
+ */
+ for( i = 0; i < 256; i++ )
+ {
+ x = FSb[i];
+ y = XTIME( x ) & 0xFF;
+ z = ( y ^ x ) & 0xFF;
+
+ FT0[i] = ( (unsigned long) y ) ^
+ ( (unsigned long) x << 8 ) ^
+ ( (unsigned long) x << 16 ) ^
+ ( (unsigned long) z << 24 );
+
+ FT1[i] = ROTL8( FT0[i] );
+ FT2[i] = ROTL8( FT1[i] );
+ FT3[i] = ROTL8( FT2[i] );
+
+ x = RSb[i];
+
+ RT0[i] = ( (unsigned long) MUL( 0x0E, x ) ) ^
+ ( (unsigned long) MUL( 0x09, x ) << 8 ) ^
+ ( (unsigned long) MUL( 0x0D, x ) << 16 ) ^
+ ( (unsigned long) MUL( 0x0B, x ) << 24 );
+
+ RT1[i] = ROTL8( RT0[i] );
+ RT2[i] = ROTL8( RT1[i] );
+ RT3[i] = ROTL8( RT2[i] );
+ }
+}
+
+#endif
+
+/*
+ * AES key schedule (encryption)
+ */
+int aes_setkey_enc( aes_context *ctx, const unsigned char *key, unsigned int keysize )
+{
+ unsigned int i;
+ unsigned long *RK;
+
+#if !defined(POLARSSL_AES_ROM_TABLES)
+ if( aes_init_done == 0 )
+ {
+ aes_gen_tables();
+ aes_init_done = 1;
+ }
+#endif
+
+ switch( keysize )
+ {
+ case 128: ctx->nr = 10; break;
+ case 192: ctx->nr = 12; break;
+ case 256: ctx->nr = 14; break;
+ default : return( POLARSSL_ERR_AES_INVALID_KEY_LENGTH );
+ }
+
+#if defined(PADLOCK_ALIGN16)
+ ctx->rk = RK = PADLOCK_ALIGN16( ctx->buf );
+#else
+ ctx->rk = RK = ctx->buf;
+#endif
+
+ for( i = 0; i < (keysize >> 5); i++ )
+ {
+ GET_ULONG_LE( RK[i], key, i << 2 );
+ }
+
+ switch( ctx->nr )
+ {
+ case 10:
+
+ for( i = 0; i < 10; i++, RK += 4 )
+ {
+ RK[4] = RK[0] ^ RCON[i] ^
+ ( (unsigned long) FSb[ ( RK[3] >> 8 ) & 0xFF ] ) ^
+ ( (unsigned long) FSb[ ( RK[3] >> 16 ) & 0xFF ] << 8 ) ^
+ ( (unsigned long) FSb[ ( RK[3] >> 24 ) & 0xFF ] << 16 ) ^
+ ( (unsigned long) FSb[ ( RK[3] ) & 0xFF ] << 24 );
+
+ RK[5] = RK[1] ^ RK[4];
+ RK[6] = RK[2] ^ RK[5];
+ RK[7] = RK[3] ^ RK[6];
+ }
+ break;
+
+ case 12:
+
+ for( i = 0; i < 8; i++, RK += 6 )
+ {
+ RK[6] = RK[0] ^ RCON[i] ^
+ ( (unsigned long) FSb[ ( RK[5] >> 8 ) & 0xFF ] ) ^
+ ( (unsigned long) FSb[ ( RK[5] >> 16 ) & 0xFF ] << 8 ) ^
+ ( (unsigned long) FSb[ ( RK[5] >> 24 ) & 0xFF ] << 16 ) ^
+ ( (unsigned long) FSb[ ( RK[5] ) & 0xFF ] << 24 );
+
+ RK[7] = RK[1] ^ RK[6];
+ RK[8] = RK[2] ^ RK[7];
+ RK[9] = RK[3] ^ RK[8];
+ RK[10] = RK[4] ^ RK[9];
+ RK[11] = RK[5] ^ RK[10];
+ }
+ break;
+
+ case 14:
+
+ for( i = 0; i < 7; i++, RK += 8 )
+ {
+ RK[8] = RK[0] ^ RCON[i] ^
+ ( (unsigned long) FSb[ ( RK[7] >> 8 ) & 0xFF ] ) ^
+ ( (unsigned long) FSb[ ( RK[7] >> 16 ) & 0xFF ] << 8 ) ^
+ ( (unsigned long) FSb[ ( RK[7] >> 24 ) & 0xFF ] << 16 ) ^
+ ( (unsigned long) FSb[ ( RK[7] ) & 0xFF ] << 24 );
+
+ RK[9] = RK[1] ^ RK[8];
+ RK[10] = RK[2] ^ RK[9];
+ RK[11] = RK[3] ^ RK[10];
+
+ RK[12] = RK[4] ^
+ ( (unsigned long) FSb[ ( RK[11] ) & 0xFF ] ) ^
+ ( (unsigned long) FSb[ ( RK[11] >> 8 ) & 0xFF ] << 8 ) ^
+ ( (unsigned long) FSb[ ( RK[11] >> 16 ) & 0xFF ] << 16 ) ^
+ ( (unsigned long) FSb[ ( RK[11] >> 24 ) & 0xFF ] << 24 );
+
+ RK[13] = RK[5] ^ RK[12];
+ RK[14] = RK[6] ^ RK[13];
+ RK[15] = RK[7] ^ RK[14];
+ }
+ break;
+
+ default:
+
+ break;
+ }
+
+ return( 0 );
+}
+
+/*
+ * AES key schedule (decryption)
+ */
+int aes_setkey_dec( aes_context *ctx, const unsigned char *key, unsigned int keysize )
+{
+ int i, j;
+ aes_context cty;
+ unsigned long *RK;
+ unsigned long *SK;
+ int ret;
+
+ switch( keysize )
+ {
+ case 128: ctx->nr = 10; break;
+ case 192: ctx->nr = 12; break;
+ case 256: ctx->nr = 14; break;
+ default : return( POLARSSL_ERR_AES_INVALID_KEY_LENGTH );
+ }
+
+#if defined(PADLOCK_ALIGN16)
+ ctx->rk = RK = PADLOCK_ALIGN16( ctx->buf );
+#else
+ ctx->rk = RK = ctx->buf;
+#endif
+
+ ret = aes_setkey_enc( &cty, key, keysize );
+ if( ret != 0 )
+ return( ret );
+
+ SK = cty.rk + cty.nr * 4;
+
+ *RK++ = *SK++;
+ *RK++ = *SK++;
+ *RK++ = *SK++;
+ *RK++ = *SK++;
+
+ for( i = ctx->nr - 1, SK -= 8; i > 0; i--, SK -= 8 )
+ {
+ for( j = 0; j < 4; j++, SK++ )
+ {
+ *RK++ = RT0[ FSb[ ( *SK ) & 0xFF ] ] ^
+ RT1[ FSb[ ( *SK >> 8 ) & 0xFF ] ] ^
+ RT2[ FSb[ ( *SK >> 16 ) & 0xFF ] ] ^
+ RT3[ FSb[ ( *SK >> 24 ) & 0xFF ] ];
+ }
+ }
+
+ *RK++ = *SK++;
+ *RK++ = *SK++;
+ *RK++ = *SK++;
+ *RK++ = *SK++;
+
+ memset( &cty, 0, sizeof( aes_context ) );
+
+ return( 0 );
+}
+
+#define AES_FROUND(X0,X1,X2,X3,Y0,Y1,Y2,Y3) \
+{ \
+ X0 = *RK++ ^ FT0[ ( Y0 ) & 0xFF ] ^ \
+ FT1[ ( Y1 >> 8 ) & 0xFF ] ^ \
+ FT2[ ( Y2 >> 16 ) & 0xFF ] ^ \
+ FT3[ ( Y3 >> 24 ) & 0xFF ]; \
+ \
+ X1 = *RK++ ^ FT0[ ( Y1 ) & 0xFF ] ^ \
+ FT1[ ( Y2 >> 8 ) & 0xFF ] ^ \
+ FT2[ ( Y3 >> 16 ) & 0xFF ] ^ \
+ FT3[ ( Y0 >> 24 ) & 0xFF ]; \
+ \
+ X2 = *RK++ ^ FT0[ ( Y2 ) & 0xFF ] ^ \
+ FT1[ ( Y3 >> 8 ) & 0xFF ] ^ \
+ FT2[ ( Y0 >> 16 ) & 0xFF ] ^ \
+ FT3[ ( Y1 >> 24 ) & 0xFF ]; \
+ \
+ X3 = *RK++ ^ FT0[ ( Y3 ) & 0xFF ] ^ \
+ FT1[ ( Y0 >> 8 ) & 0xFF ] ^ \
+ FT2[ ( Y1 >> 16 ) & 0xFF ] ^ \
+ FT3[ ( Y2 >> 24 ) & 0xFF ]; \
+}
+
+#define AES_RROUND(X0,X1,X2,X3,Y0,Y1,Y2,Y3) \
+{ \
+ X0 = *RK++ ^ RT0[ ( Y0 ) & 0xFF ] ^ \
+ RT1[ ( Y3 >> 8 ) & 0xFF ] ^ \
+ RT2[ ( Y2 >> 16 ) & 0xFF ] ^ \
+ RT3[ ( Y1 >> 24 ) & 0xFF ]; \
+ \
+ X1 = *RK++ ^ RT0[ ( Y1 ) & 0xFF ] ^ \
+ RT1[ ( Y0 >> 8 ) & 0xFF ] ^ \
+ RT2[ ( Y3 >> 16 ) & 0xFF ] ^ \
+ RT3[ ( Y2 >> 24 ) & 0xFF ]; \
+ \
+ X2 = *RK++ ^ RT0[ ( Y2 ) & 0xFF ] ^ \
+ RT1[ ( Y1 >> 8 ) & 0xFF ] ^ \
+ RT2[ ( Y0 >> 16 ) & 0xFF ] ^ \
+ RT3[ ( Y3 >> 24 ) & 0xFF ]; \
+ \
+ X3 = *RK++ ^ RT0[ ( Y3 ) & 0xFF ] ^ \
+ RT1[ ( Y2 >> 8 ) & 0xFF ] ^ \
+ RT2[ ( Y1 >> 16 ) & 0xFF ] ^ \
+ RT3[ ( Y0 >> 24 ) & 0xFF ]; \
+}
+
+/*
+ * AES-ECB block encryption/decryption
+ */
+int aes_crypt_ecb( aes_context *ctx,
+ int mode,
+ const unsigned char input[16],
+ unsigned char output[16] )
+{
+ int i;
+ unsigned long *RK, X0, X1, X2, X3, Y0, Y1, Y2, Y3;
+
+#if defined(POLARSSL_PADLOCK_C) && defined(POLARSSL_HAVE_X86)
+ if( padlock_supports( PADLOCK_ACE ) )
+ {
+ if( padlock_xcryptecb( ctx, mode, input, output ) == 0 )
+ return( 0 );
+
+ // If padlock data misaligned, we just fall back to
+ // unaccelerated mode
+ //
+ }
+#endif
+
+ RK = ctx->rk;
+
+ GET_ULONG_LE( X0, input, 0 ); X0 ^= *RK++;
+ GET_ULONG_LE( X1, input, 4 ); X1 ^= *RK++;
+ GET_ULONG_LE( X2, input, 8 ); X2 ^= *RK++;
+ GET_ULONG_LE( X3, input, 12 ); X3 ^= *RK++;
+
+ if( mode == AES_DECRYPT )
+ {
+ for( i = (ctx->nr >> 1) - 1; i > 0; i-- )
+ {
+ AES_RROUND( Y0, Y1, Y2, Y3, X0, X1, X2, X3 );
+ AES_RROUND( X0, X1, X2, X3, Y0, Y1, Y2, Y3 );
+ }
+
+ AES_RROUND( Y0, Y1, Y2, Y3, X0, X1, X2, X3 );
+
+ X0 = *RK++ ^ \
+ ( (unsigned long) RSb[ ( Y0 ) & 0xFF ] ) ^
+ ( (unsigned long) RSb[ ( Y3 >> 8 ) & 0xFF ] << 8 ) ^
+ ( (unsigned long) RSb[ ( Y2 >> 16 ) & 0xFF ] << 16 ) ^
+ ( (unsigned long) RSb[ ( Y1 >> 24 ) & 0xFF ] << 24 );
+
+ X1 = *RK++ ^ \
+ ( (unsigned long) RSb[ ( Y1 ) & 0xFF ] ) ^
+ ( (unsigned long) RSb[ ( Y0 >> 8 ) & 0xFF ] << 8 ) ^
+ ( (unsigned long) RSb[ ( Y3 >> 16 ) & 0xFF ] << 16 ) ^
+ ( (unsigned long) RSb[ ( Y2 >> 24 ) & 0xFF ] << 24 );
+
+ X2 = *RK++ ^ \
+ ( (unsigned long) RSb[ ( Y2 ) & 0xFF ] ) ^
+ ( (unsigned long) RSb[ ( Y1 >> 8 ) & 0xFF ] << 8 ) ^
+ ( (unsigned long) RSb[ ( Y0 >> 16 ) & 0xFF ] << 16 ) ^
+ ( (unsigned long) RSb[ ( Y3 >> 24 ) & 0xFF ] << 24 );
+
+ X3 = *RK++ ^ \
+ ( (unsigned long) RSb[ ( Y3 ) & 0xFF ] ) ^
+ ( (unsigned long) RSb[ ( Y2 >> 8 ) & 0xFF ] << 8 ) ^
+ ( (unsigned long) RSb[ ( Y1 >> 16 ) & 0xFF ] << 16 ) ^
+ ( (unsigned long) RSb[ ( Y0 >> 24 ) & 0xFF ] << 24 );
+ }
+ else /* AES_ENCRYPT */
+ {
+ for( i = (ctx->nr >> 1) - 1; i > 0; i-- )
+ {
+ AES_FROUND( Y0, Y1, Y2, Y3, X0, X1, X2, X3 );
+ AES_FROUND( X0, X1, X2, X3, Y0, Y1, Y2, Y3 );
+ }
+
+ AES_FROUND( Y0, Y1, Y2, Y3, X0, X1, X2, X3 );
+
+ X0 = *RK++ ^ \
+ ( (unsigned long) FSb[ ( Y0 ) & 0xFF ] ) ^
+ ( (unsigned long) FSb[ ( Y1 >> 8 ) & 0xFF ] << 8 ) ^
+ ( (unsigned long) FSb[ ( Y2 >> 16 ) & 0xFF ] << 16 ) ^
+ ( (unsigned long) FSb[ ( Y3 >> 24 ) & 0xFF ] << 24 );
+
+ X1 = *RK++ ^ \
+ ( (unsigned long) FSb[ ( Y1 ) & 0xFF ] ) ^
+ ( (unsigned long) FSb[ ( Y2 >> 8 ) & 0xFF ] << 8 ) ^
+ ( (unsigned long) FSb[ ( Y3 >> 16 ) & 0xFF ] << 16 ) ^
+ ( (unsigned long) FSb[ ( Y0 >> 24 ) & 0xFF ] << 24 );
+
+ X2 = *RK++ ^ \
+ ( (unsigned long) FSb[ ( Y2 ) & 0xFF ] ) ^
+ ( (unsigned long) FSb[ ( Y3 >> 8 ) & 0xFF ] << 8 ) ^
+ ( (unsigned long) FSb[ ( Y0 >> 16 ) & 0xFF ] << 16 ) ^
+ ( (unsigned long) FSb[ ( Y1 >> 24 ) & 0xFF ] << 24 );
+
+ X3 = *RK++ ^ \
+ ( (unsigned long) FSb[ ( Y3 ) & 0xFF ] ) ^
+ ( (unsigned long) FSb[ ( Y0 >> 8 ) & 0xFF ] << 8 ) ^
+ ( (unsigned long) FSb[ ( Y1 >> 16 ) & 0xFF ] << 16 ) ^
+ ( (unsigned long) FSb[ ( Y2 >> 24 ) & 0xFF ] << 24 );
+ }
+
+ PUT_ULONG_LE( X0, output, 0 );
+ PUT_ULONG_LE( X1, output, 4 );
+ PUT_ULONG_LE( X2, output, 8 );
+ PUT_ULONG_LE( X3, output, 12 );
+
+ return( 0 );
+}
+
+/*
+ * AES-CBC buffer encryption/decryption
+ */
+int aes_crypt_cbc( aes_context *ctx,
+ int mode,
+ size_t length,
+ unsigned char iv[16],
+ const unsigned char *input,
+ unsigned char *output )
+{
+ int i;
+ unsigned char temp[16];
+
+ if( length % 16 )
+ return( POLARSSL_ERR_AES_INVALID_INPUT_LENGTH );
+
+#if defined(POLARSSL_PADLOCK_C) && defined(POLARSSL_HAVE_X86)
+ if( padlock_supports( PADLOCK_ACE ) )
+ {
+ if( padlock_xcryptcbc( ctx, mode, length, iv, input, output ) == 0 )
+ return( 0 );
+
+ // If padlock data misaligned, we just fall back to
+ // unaccelerated mode
+ //
+ }
+#endif
+
+ if( mode == AES_DECRYPT )
+ {
+ while( length > 0 )
+ {
+ memcpy( temp, input, 16 );
+ aes_crypt_ecb( ctx, mode, input, output );
+
+ for( i = 0; i < 16; i++ )
+ output[i] = (unsigned char)( output[i] ^ iv[i] );
+
+ memcpy( iv, temp, 16 );
+
+ input += 16;
+ output += 16;
+ length -= 16;
+ }
+ }
+ else
+ {
+ while( length > 0 )
+ {
+ for( i = 0; i < 16; i++ )
+ output[i] = (unsigned char)( input[i] ^ iv[i] );
+
+ aes_crypt_ecb( ctx, mode, output, output );
+ memcpy( iv, output, 16 );
+
+ input += 16;
+ output += 16;
+ length -= 16;
+ }
+ }
+
+ return( 0 );
+}
+
+#if defined(POLARSSL_CIPHER_MODE_CFB)
+/*
+ * AES-CFB128 buffer encryption/decryption
+ */
+int aes_crypt_cfb128( aes_context *ctx,
+ int mode,
+ size_t length,
+ size_t *iv_off,
+ unsigned char iv[16],
+ const unsigned char *input,
+ unsigned char *output )
+{
+ int c;
+ size_t n = *iv_off;
+
+ if( mode == AES_DECRYPT )
+ {
+ while( length-- )
+ {
+ if( n == 0 )
+ aes_crypt_ecb( ctx, AES_ENCRYPT, iv, iv );
+
+ c = *input++;
+ *output++ = (unsigned char)( c ^ iv[n] );
+ iv[n] = (unsigned char) c;
+
+ n = (n + 1) & 0x0F;
+ }
+ }
+ else
+ {
+ while( length-- )
+ {
+ if( n == 0 )
+ aes_crypt_ecb( ctx, AES_ENCRYPT, iv, iv );
+
+ iv[n] = *output++ = (unsigned char)( iv[n] ^ *input++ );
+
+ n = (n + 1) & 0x0F;
+ }
+ }
+
+ *iv_off = n;
+
+ return( 0 );
+}
+#endif /*POLARSSL_CIPHER_MODE_CFB */
+
+#if defined(POLARSSL_CIPHER_MODE_CTR)
+/*
+ * AES-CTR buffer encryption/decryption
+ */
+int aes_crypt_ctr( aes_context *ctx,
+ size_t length,
+ size_t *nc_off,
+ unsigned char nonce_counter[16],
+ unsigned char stream_block[16],
+ const unsigned char *input,
+ unsigned char *output )
+{
+ int c, i, cb;
+ size_t n = *nc_off;
+
+ while( length-- )
+ {
+ if( n == 0 ) {
+ aes_crypt_ecb( ctx, AES_ENCRYPT, nonce_counter, stream_block );
+
+ i = 15;
+ do {
+ nonce_counter[i]++;
+ cb = nonce_counter[i] == 0;
+ } while( i-- && cb );
+
+ }
+ c = *input++;
+ *output++ = (unsigned char)( c ^ stream_block[n] );
+
+ n = (n + 1) & 0x0F;
+ }
+
+ *nc_off = n;
+
+ return( 0 );
+}
+#endif /* POLARSSL_CIPHER_MODE_CTR */
+
+#if defined(POLARSSL_SELF_TEST)
+
+#include <stdio.h>
+
+/*
+ * AES test vectors from:
+ *
+ * http://csrc.nist.gov/archive/aes/rijndael/rijndael-vals.zip
+ */
+static const unsigned char aes_test_ecb_dec[3][16] =
+{
+ { 0x44, 0x41, 0x6A, 0xC2, 0xD1, 0xF5, 0x3C, 0x58,
+ 0x33, 0x03, 0x91, 0x7E, 0x6B, 0xE9, 0xEB, 0xE0 },
+ { 0x48, 0xE3, 0x1E, 0x9E, 0x25, 0x67, 0x18, 0xF2,
+ 0x92, 0x29, 0x31, 0x9C, 0x19, 0xF1, 0x5B, 0xA4 },
+ { 0x05, 0x8C, 0xCF, 0xFD, 0xBB, 0xCB, 0x38, 0x2D,
+ 0x1F, 0x6F, 0x56, 0x58, 0x5D, 0x8A, 0x4A, 0xDE }
+};
+
+static const unsigned char aes_test_ecb_enc[3][16] =
+{
+ { 0xC3, 0x4C, 0x05, 0x2C, 0xC0, 0xDA, 0x8D, 0x73,
+ 0x45, 0x1A, 0xFE, 0x5F, 0x03, 0xBE, 0x29, 0x7F },
+ { 0xF3, 0xF6, 0x75, 0x2A, 0xE8, 0xD7, 0x83, 0x11,
+ 0x38, 0xF0, 0x41, 0x56, 0x06, 0x31, 0xB1, 0x14 },
+ { 0x8B, 0x79, 0xEE, 0xCC, 0x93, 0xA0, 0xEE, 0x5D,
+ 0xFF, 0x30, 0xB4, 0xEA, 0x21, 0x63, 0x6D, 0xA4 }
+};
+
+static const unsigned char aes_test_cbc_dec[3][16] =
+{
+ { 0xFA, 0xCA, 0x37, 0xE0, 0xB0, 0xC8, 0x53, 0x73,
+ 0xDF, 0x70, 0x6E, 0x73, 0xF7, 0xC9, 0xAF, 0x86 },
+ { 0x5D, 0xF6, 0x78, 0xDD, 0x17, 0xBA, 0x4E, 0x75,
+ 0xB6, 0x17, 0x68, 0xC6, 0xAD, 0xEF, 0x7C, 0x7B },
+ { 0x48, 0x04, 0xE1, 0x81, 0x8F, 0xE6, 0x29, 0x75,
+ 0x19, 0xA3, 0xE8, 0x8C, 0x57, 0x31, 0x04, 0x13 }
+};
+
+static const unsigned char aes_test_cbc_enc[3][16] =
+{
+ { 0x8A, 0x05, 0xFC, 0x5E, 0x09, 0x5A, 0xF4, 0x84,
+ 0x8A, 0x08, 0xD3, 0x28, 0xD3, 0x68, 0x8E, 0x3D },
+ { 0x7B, 0xD9, 0x66, 0xD5, 0x3A, 0xD8, 0xC1, 0xBB,
+ 0x85, 0xD2, 0xAD, 0xFA, 0xE8, 0x7B, 0xB1, 0x04 },
+ { 0xFE, 0x3C, 0x53, 0x65, 0x3E, 0x2F, 0x45, 0xB5,
+ 0x6F, 0xCD, 0x88, 0xB2, 0xCC, 0x89, 0x8F, 0xF0 }
+};
+
+#if defined(POLARSSL_CIPHER_MODE_CFB)
+/*
+ * AES-CFB128 test vectors from:
+ *
+ * http://csrc.nist.gov/publications/nistpubs/800-38a/sp800-38a.pdf
+ */
+static const unsigned char aes_test_cfb128_key[3][32] =
+{
+ { 0x2B, 0x7E, 0x15, 0x16, 0x28, 0xAE, 0xD2, 0xA6,
+ 0xAB, 0xF7, 0x15, 0x88, 0x09, 0xCF, 0x4F, 0x3C },
+ { 0x8E, 0x73, 0xB0, 0xF7, 0xDA, 0x0E, 0x64, 0x52,
+ 0xC8, 0x10, 0xF3, 0x2B, 0x80, 0x90, 0x79, 0xE5,
+ 0x62, 0xF8, 0xEA, 0xD2, 0x52, 0x2C, 0x6B, 0x7B },
+ { 0x60, 0x3D, 0xEB, 0x10, 0x15, 0xCA, 0x71, 0xBE,
+ 0x2B, 0x73, 0xAE, 0xF0, 0x85, 0x7D, 0x77, 0x81,
+ 0x1F, 0x35, 0x2C, 0x07, 0x3B, 0x61, 0x08, 0xD7,
+ 0x2D, 0x98, 0x10, 0xA3, 0x09, 0x14, 0xDF, 0xF4 }
+};
+
+static const unsigned char aes_test_cfb128_iv[16] =
+{
+ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+ 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F
+};
+
+static const unsigned char aes_test_cfb128_pt[64] =
+{
+ 0x6B, 0xC1, 0xBE, 0xE2, 0x2E, 0x40, 0x9F, 0x96,
+ 0xE9, 0x3D, 0x7E, 0x11, 0x73, 0x93, 0x17, 0x2A,
+ 0xAE, 0x2D, 0x8A, 0x57, 0x1E, 0x03, 0xAC, 0x9C,
+ 0x9E, 0xB7, 0x6F, 0xAC, 0x45, 0xAF, 0x8E, 0x51,
+ 0x30, 0xC8, 0x1C, 0x46, 0xA3, 0x5C, 0xE4, 0x11,
+ 0xE5, 0xFB, 0xC1, 0x19, 0x1A, 0x0A, 0x52, 0xEF,
+ 0xF6, 0x9F, 0x24, 0x45, 0xDF, 0x4F, 0x9B, 0x17,
+ 0xAD, 0x2B, 0x41, 0x7B, 0xE6, 0x6C, 0x37, 0x10
+};
+
+static const unsigned char aes_test_cfb128_ct[3][64] =
+{
+ { 0x3B, 0x3F, 0xD9, 0x2E, 0xB7, 0x2D, 0xAD, 0x20,
+ 0x33, 0x34, 0x49, 0xF8, 0xE8, 0x3C, 0xFB, 0x4A,
+ 0xC8, 0xA6, 0x45, 0x37, 0xA0, 0xB3, 0xA9, 0x3F,
+ 0xCD, 0xE3, 0xCD, 0xAD, 0x9F, 0x1C, 0xE5, 0x8B,
+ 0x26, 0x75, 0x1F, 0x67, 0xA3, 0xCB, 0xB1, 0x40,
+ 0xB1, 0x80, 0x8C, 0xF1, 0x87, 0xA4, 0xF4, 0xDF,
+ 0xC0, 0x4B, 0x05, 0x35, 0x7C, 0x5D, 0x1C, 0x0E,
+ 0xEA, 0xC4, 0xC6, 0x6F, 0x9F, 0xF7, 0xF2, 0xE6 },
+ { 0xCD, 0xC8, 0x0D, 0x6F, 0xDD, 0xF1, 0x8C, 0xAB,
+ 0x34, 0xC2, 0x59, 0x09, 0xC9, 0x9A, 0x41, 0x74,
+ 0x67, 0xCE, 0x7F, 0x7F, 0x81, 0x17, 0x36, 0x21,
+ 0x96, 0x1A, 0x2B, 0x70, 0x17, 0x1D, 0x3D, 0x7A,
+ 0x2E, 0x1E, 0x8A, 0x1D, 0xD5, 0x9B, 0x88, 0xB1,
+ 0xC8, 0xE6, 0x0F, 0xED, 0x1E, 0xFA, 0xC4, 0xC9,
+ 0xC0, 0x5F, 0x9F, 0x9C, 0xA9, 0x83, 0x4F, 0xA0,
+ 0x42, 0xAE, 0x8F, 0xBA, 0x58, 0x4B, 0x09, 0xFF },
+ { 0xDC, 0x7E, 0x84, 0xBF, 0xDA, 0x79, 0x16, 0x4B,
+ 0x7E, 0xCD, 0x84, 0x86, 0x98, 0x5D, 0x38, 0x60,
+ 0x39, 0xFF, 0xED, 0x14, 0x3B, 0x28, 0xB1, 0xC8,
+ 0x32, 0x11, 0x3C, 0x63, 0x31, 0xE5, 0x40, 0x7B,
+ 0xDF, 0x10, 0x13, 0x24, 0x15, 0xE5, 0x4B, 0x92,
+ 0xA1, 0x3E, 0xD0, 0xA8, 0x26, 0x7A, 0xE2, 0xF9,
+ 0x75, 0xA3, 0x85, 0x74, 0x1A, 0xB9, 0xCE, 0xF8,
+ 0x20, 0x31, 0x62, 0x3D, 0x55, 0xB1, 0xE4, 0x71 }
+};
+#endif /* POLARSSL_CIPHER_MODE_CFB */
+
+#if defined(POLARSSL_CIPHER_MODE_CTR)
+/*
+ * AES-CTR test vectors from:
+ *
+ * http://www.faqs.org/rfcs/rfc3686.html
+ */
+
+static const unsigned char aes_test_ctr_key[3][16] =
+{
+ { 0xAE, 0x68, 0x52, 0xF8, 0x12, 0x10, 0x67, 0xCC,
+ 0x4B, 0xF7, 0xA5, 0x76, 0x55, 0x77, 0xF3, 0x9E },
+ { 0x7E, 0x24, 0x06, 0x78, 0x17, 0xFA, 0xE0, 0xD7,
+ 0x43, 0xD6, 0xCE, 0x1F, 0x32, 0x53, 0x91, 0x63 },
+ { 0x76, 0x91, 0xBE, 0x03, 0x5E, 0x50, 0x20, 0xA8,
+ 0xAC, 0x6E, 0x61, 0x85, 0x29, 0xF9, 0xA0, 0xDC }
+};
+
+static const unsigned char aes_test_ctr_nonce_counter[3][16] =
+{
+ { 0x00, 0x00, 0x00, 0x30, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 },
+ { 0x00, 0x6C, 0xB6, 0xDB, 0xC0, 0x54, 0x3B, 0x59,
+ 0xDA, 0x48, 0xD9, 0x0B, 0x00, 0x00, 0x00, 0x01 },
+ { 0x00, 0xE0, 0x01, 0x7B, 0x27, 0x77, 0x7F, 0x3F,
+ 0x4A, 0x17, 0x86, 0xF0, 0x00, 0x00, 0x00, 0x01 }
+};
+
+static const unsigned char aes_test_ctr_pt[3][48] =
+{
+ { 0x53, 0x69, 0x6E, 0x67, 0x6C, 0x65, 0x20, 0x62,
+ 0x6C, 0x6F, 0x63, 0x6B, 0x20, 0x6D, 0x73, 0x67 },
+
+ { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+ 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
+ 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
+ 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F },
+
+ { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+ 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
+ 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
+ 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F,
+ 0x20, 0x21, 0x22, 0x23 }
+};
+
+static const unsigned char aes_test_ctr_ct[3][48] =
+{
+ { 0xE4, 0x09, 0x5D, 0x4F, 0xB7, 0xA7, 0xB3, 0x79,
+ 0x2D, 0x61, 0x75, 0xA3, 0x26, 0x13, 0x11, 0xB8 },
+ { 0x51, 0x04, 0xA1, 0x06, 0x16, 0x8A, 0x72, 0xD9,
+ 0x79, 0x0D, 0x41, 0xEE, 0x8E, 0xDA, 0xD3, 0x88,
+ 0xEB, 0x2E, 0x1E, 0xFC, 0x46, 0xDA, 0x57, 0xC8,
+ 0xFC, 0xE6, 0x30, 0xDF, 0x91, 0x41, 0xBE, 0x28 },
+ { 0xC1, 0xCF, 0x48, 0xA8, 0x9F, 0x2F, 0xFD, 0xD9,
+ 0xCF, 0x46, 0x52, 0xE9, 0xEF, 0xDB, 0x72, 0xD7,
+ 0x45, 0x40, 0xA4, 0x2B, 0xDE, 0x6D, 0x78, 0x36,
+ 0xD5, 0x9A, 0x5C, 0xEA, 0xAE, 0xF3, 0x10, 0x53,
+ 0x25, 0xB2, 0x07, 0x2F }
+};
+
+static const int aes_test_ctr_len[3] =
+ { 16, 32, 36 };
+#endif /* POLARSSL_CIPHER_MODE_CTR */
+
+/*
+ * Checkup routine
+ */
+int aes_self_test( int verbose )
+{
+ int i, j, u, v;
+ unsigned char key[32];
+ unsigned char buf[64];
+ unsigned char prv[16];
+ unsigned char iv[16];
+#if defined(POLARSSL_CIPHER_MODE_CTR) || defined(POLARSSL_CIPHER_MODE_CFB)
+ size_t offset;
+#endif
+#if defined(POLARSSL_CIPHER_MODE_CTR)
+ int len;
+ unsigned char nonce_counter[16];
+ unsigned char stream_block[16];
+#endif
+ aes_context ctx;
+
+ memset( key, 0, 32 );
+
+ /*
+ * ECB mode
+ */
+ for( i = 0; i < 6; i++ )
+ {
+ u = i >> 1;
+ v = i & 1;
+
+ if( verbose != 0 )
+ printf( " AES-ECB-%3d (%s): ", 128 + u * 64,
+ ( v == AES_DECRYPT ) ? "dec" : "enc" );
+
+ memset( buf, 0, 16 );
+
+ if( v == AES_DECRYPT )
+ {
+ aes_setkey_dec( &ctx, key, 128 + u * 64 );
+
+ for( j = 0; j < 10000; j++ )
+ aes_crypt_ecb( &ctx, v, buf, buf );
+
+ if( memcmp( buf, aes_test_ecb_dec[u], 16 ) != 0 )
+ {
+ if( verbose != 0 )
+ printf( "failed\n" );
+
+ return( 1 );
+ }
+ }
+ else
+ {
+ aes_setkey_enc( &ctx, key, 128 + u * 64 );
+
+ for( j = 0; j < 10000; j++ )
+ aes_crypt_ecb( &ctx, v, buf, buf );
+
+ if( memcmp( buf, aes_test_ecb_enc[u], 16 ) != 0 )
+ {
+ if( verbose != 0 )
+ printf( "failed\n" );
+
+ return( 1 );
+ }
+ }
+
+ if( verbose != 0 )
+ printf( "passed\n" );
+ }
+
+ if( verbose != 0 )
+ printf( "\n" );
+
+ /*
+ * CBC mode
+ */
+ for( i = 0; i < 6; i++ )
+ {
+ u = i >> 1;
+ v = i & 1;
+
+ if( verbose != 0 )
+ printf( " AES-CBC-%3d (%s): ", 128 + u * 64,
+ ( v == AES_DECRYPT ) ? "dec" : "enc" );
+
+ memset( iv , 0, 16 );
+ memset( prv, 0, 16 );
+ memset( buf, 0, 16 );
+
+ if( v == AES_DECRYPT )
+ {
+ aes_setkey_dec( &ctx, key, 128 + u * 64 );
+
+ for( j = 0; j < 10000; j++ )
+ aes_crypt_cbc( &ctx, v, 16, iv, buf, buf );
+
+ if( memcmp( buf, aes_test_cbc_dec[u], 16 ) != 0 )
+ {
+ if( verbose != 0 )
+ printf( "failed\n" );
+
+ return( 1 );
+ }
+ }
+ else
+ {
+ aes_setkey_enc( &ctx, key, 128 + u * 64 );
+
+ for( j = 0; j < 10000; j++ )
+ {
+ unsigned char tmp[16];
+
+ aes_crypt_cbc( &ctx, v, 16, iv, buf, buf );
+
+ memcpy( tmp, prv, 16 );
+ memcpy( prv, buf, 16 );
+ memcpy( buf, tmp, 16 );
+ }
+
+ if( memcmp( prv, aes_test_cbc_enc[u], 16 ) != 0 )
+ {
+ if( verbose != 0 )
+ printf( "failed\n" );
+
+ return( 1 );
+ }
+ }
+
+ if( verbose != 0 )
+ printf( "passed\n" );
+ }
+
+ if( verbose != 0 )
+ printf( "\n" );
+
+#if defined(POLARSSL_CIPHER_MODE_CFB)
+ /*
+ * CFB128 mode
+ */
+ for( i = 0; i < 6; i++ )
+ {
+ u = i >> 1;
+ v = i & 1;
+
+ if( verbose != 0 )
+ printf( " AES-CFB128-%3d (%s): ", 128 + u * 64,
+ ( v == AES_DECRYPT ) ? "dec" : "enc" );
+
+ memcpy( iv, aes_test_cfb128_iv, 16 );
+ memcpy( key, aes_test_cfb128_key[u], 16 + u * 8 );
+
+ offset = 0;
+ aes_setkey_enc( &ctx, key, 128 + u * 64 );
+
+ if( v == AES_DECRYPT )
+ {
+ memcpy( buf, aes_test_cfb128_ct[u], 64 );
+ aes_crypt_cfb128( &ctx, v, 64, &offset, iv, buf, buf );
+
+ if( memcmp( buf, aes_test_cfb128_pt, 64 ) != 0 )
+ {
+ if( verbose != 0 )
+ printf( "failed\n" );
+
+ return( 1 );
+ }
+ }
+ else
+ {
+ memcpy( buf, aes_test_cfb128_pt, 64 );
+ aes_crypt_cfb128( &ctx, v, 64, &offset, iv, buf, buf );
+
+ if( memcmp( buf, aes_test_cfb128_ct[u], 64 ) != 0 )
+ {
+ if( verbose != 0 )
+ printf( "failed\n" );
+
+ return( 1 );
+ }
+ }
+
+ if( verbose != 0 )
+ printf( "passed\n" );
+ }
+
+ if( verbose != 0 )
+ printf( "\n" );
+#endif /* POLARSSL_CIPHER_MODE_CFB */
+
+#if defined(POLARSSL_CIPHER_MODE_CTR)
+ /*
+ * CTR mode
+ */
+ for( i = 0; i < 6; i++ )
+ {
+ u = i >> 1;
+ v = i & 1;
+
+ if( verbose != 0 )
+ printf( " AES-CTR-128 (%s): ",
+ ( v == AES_DECRYPT ) ? "dec" : "enc" );
+
+ memcpy( nonce_counter, aes_test_ctr_nonce_counter[u], 16 );
+ memcpy( key, aes_test_ctr_key[u], 16 );
+
+ offset = 0;
+ aes_setkey_enc( &ctx, key, 128 );
+
+ if( v == AES_DECRYPT )
+ {
+ len = aes_test_ctr_len[u];
+ memcpy( buf, aes_test_ctr_ct[u], len );
+
+ aes_crypt_ctr( &ctx, len, &offset, nonce_counter, stream_block, buf, buf );
+
+ if( memcmp( buf, aes_test_ctr_pt[u], len ) != 0 )
+ {
+ if( verbose != 0 )
+ printf( "failed\n" );
+
+ return( 1 );
+ }
+ }
+ else
+ {
+ len = aes_test_ctr_len[u];
+ memcpy( buf, aes_test_ctr_pt[u], len );
+
+ aes_crypt_ctr( &ctx, len, &offset, nonce_counter, stream_block, buf, buf );
+
+ if( memcmp( buf, aes_test_ctr_ct[u], len ) != 0 )
+ {
+ if( verbose != 0 )
+ printf( "failed\n" );
+
+ return( 1 );
+ }
+ }
+
+ if( verbose != 0 )
+ printf( "passed\n" );
+ }
+
+ if( verbose != 0 )
+ printf( "\n" );
+#endif /* POLARSSL_CIPHER_MODE_CTR */
+
+ return( 0 );
+}
+
+#endif
+
+#endif
--- /dev/null
+/*
+ * An implementation of the ARCFOUR algorithm
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+/*
+ * The ARCFOUR algorithm was publicly disclosed on 94/09.
+ *
+ * http://groups.google.com/group/sci.crypt/msg/10a300c9d21afca0
+ */
+
+#include "polarssl/config.h"
+
+#if defined(POLARSSL_ARC4_C)
+
+#include "polarssl/arc4.h"
+
+/*
+ * ARC4 key schedule
+ */
+void arc4_setup( arc4_context *ctx, const unsigned char *key, unsigned int keylen )
+{
+ int i, j, a;
+ unsigned int k;
+ unsigned char *m;
+
+ ctx->x = 0;
+ ctx->y = 0;
+ m = ctx->m;
+
+ for( i = 0; i < 256; i++ )
+ m[i] = (unsigned char) i;
+
+ j = k = 0;
+
+ for( i = 0; i < 256; i++, k++ )
+ {
+ if( k >= keylen ) k = 0;
+
+ a = m[i];
+ j = ( j + a + key[k] ) & 0xFF;
+ m[i] = m[j];
+ m[j] = (unsigned char) a;
+ }
+}
+
+/*
+ * ARC4 cipher function
+ */
+int arc4_crypt( arc4_context *ctx, size_t length, const unsigned char *input,
+ unsigned char *output )
+{
+ int x, y, a, b;
+ size_t i;
+ unsigned char *m;
+
+ x = ctx->x;
+ y = ctx->y;
+ m = ctx->m;
+
+ for( i = 0; i < length; i++ )
+ {
+ x = ( x + 1 ) & 0xFF; a = m[x];
+ y = ( y + a ) & 0xFF; b = m[y];
+
+ m[x] = (unsigned char) b;
+ m[y] = (unsigned char) a;
+
+ output[i] = (unsigned char)
+ ( input[i] ^ m[(unsigned char)( a + b )] );
+ }
+
+ ctx->x = x;
+ ctx->y = y;
+
+ return( 0 );
+}
+
+#if defined(POLARSSL_SELF_TEST)
+
+#include <string.h>
+#include <stdio.h>
+
+/*
+ * ARC4 tests vectors as posted by Eric Rescorla in sep. 1994:
+ *
+ * http://groups.google.com/group/comp.security.misc/msg/10a300c9d21afca0
+ */
+static const unsigned char arc4_test_key[3][8] =
+{
+ { 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF },
+ { 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF },
+ { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }
+};
+
+static const unsigned char arc4_test_pt[3][8] =
+{
+ { 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF },
+ { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+ { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }
+};
+
+static const unsigned char arc4_test_ct[3][8] =
+{
+ { 0x75, 0xB7, 0x87, 0x80, 0x99, 0xE0, 0xC5, 0x96 },
+ { 0x74, 0x94, 0xC2, 0xE7, 0x10, 0x4B, 0x08, 0x79 },
+ { 0xDE, 0x18, 0x89, 0x41, 0xA3, 0x37, 0x5D, 0x3A }
+};
+
+/*
+ * Checkup routine
+ */
+int arc4_self_test( int verbose )
+{
+ int i;
+ unsigned char ibuf[8];
+ unsigned char obuf[8];
+ arc4_context ctx;
+
+ for( i = 0; i < 3; i++ )
+ {
+ if( verbose != 0 )
+ printf( " ARC4 test #%d: ", i + 1 );
+
+ memcpy( ibuf, arc4_test_pt[i], 8 );
+
+ arc4_setup( &ctx, (unsigned char *) arc4_test_key[i], 8 );
+ arc4_crypt( &ctx, 8, ibuf, obuf );
+
+ if( memcmp( obuf, arc4_test_ct[i], 8 ) != 0 )
+ {
+ if( verbose != 0 )
+ printf( "failed\n" );
+
+ return( 1 );
+ }
+
+ if( verbose != 0 )
+ printf( "passed\n" );
+ }
+
+ if( verbose != 0 )
+ printf( "\n" );
+
+ return( 0 );
+}
+
+#endif
+
+#endif
--- /dev/null
+/*
+ * Generic ASN.1 parsing
+ *
+ * Copyright (C) 2006-2011, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "polarssl/config.h"
+
+#if defined(POLARSSL_ASN1_PARSE_C)
+
+#include "polarssl/asn1.h"
+
+#if defined(POLARSSL_BIGNUM_C)
+#include "polarssl/bignum.h"
+#endif
+
+#include <string.h>
+#include <stdlib.h>
+#include <time.h>
+
+/*
+ * ASN.1 DER decoding routines
+ */
+int asn1_get_len( unsigned char **p,
+ const unsigned char *end,
+ size_t *len )
+{
+ if( ( end - *p ) < 1 )
+ return( POLARSSL_ERR_ASN1_OUT_OF_DATA );
+
+ if( ( **p & 0x80 ) == 0 )
+ *len = *(*p)++;
+ else
+ {
+ switch( **p & 0x7F )
+ {
+ case 1:
+ if( ( end - *p ) < 2 )
+ return( POLARSSL_ERR_ASN1_OUT_OF_DATA );
+
+ *len = (*p)[1];
+ (*p) += 2;
+ break;
+
+ case 2:
+ if( ( end - *p ) < 3 )
+ return( POLARSSL_ERR_ASN1_OUT_OF_DATA );
+
+ *len = ( (*p)[1] << 8 ) | (*p)[2];
+ (*p) += 3;
+ break;
+
+ case 3:
+ if( ( end - *p ) < 4 )
+ return( POLARSSL_ERR_ASN1_OUT_OF_DATA );
+
+ *len = ( (*p)[1] << 16 ) | ( (*p)[2] << 8 ) | (*p)[3];
+ (*p) += 4;
+ break;
+
+ case 4:
+ if( ( end - *p ) < 5 )
+ return( POLARSSL_ERR_ASN1_OUT_OF_DATA );
+
+ *len = ( (*p)[1] << 24 ) | ( (*p)[2] << 16 ) | ( (*p)[3] << 8 ) | (*p)[4];
+ (*p) += 5;
+ break;
+
+ default:
+ return( POLARSSL_ERR_ASN1_INVALID_LENGTH );
+ }
+ }
+
+ if( *len > (size_t) ( end - *p ) )
+ return( POLARSSL_ERR_ASN1_OUT_OF_DATA );
+
+ return( 0 );
+}
+
+int asn1_get_tag( unsigned char **p,
+ const unsigned char *end,
+ size_t *len, int tag )
+{
+ if( ( end - *p ) < 1 )
+ return( POLARSSL_ERR_ASN1_OUT_OF_DATA );
+
+ if( **p != tag )
+ return( POLARSSL_ERR_ASN1_UNEXPECTED_TAG );
+
+ (*p)++;
+
+ return( asn1_get_len( p, end, len ) );
+}
+
+int asn1_get_bool( unsigned char **p,
+ const unsigned char *end,
+ int *val )
+{
+ int ret;
+ size_t len;
+
+ if( ( ret = asn1_get_tag( p, end, &len, ASN1_BOOLEAN ) ) != 0 )
+ return( ret );
+
+ if( len != 1 )
+ return( POLARSSL_ERR_ASN1_INVALID_LENGTH );
+
+ *val = ( **p != 0 ) ? 1 : 0;
+ (*p)++;
+
+ return( 0 );
+}
+
+int asn1_get_int( unsigned char **p,
+ const unsigned char *end,
+ int *val )
+{
+ int ret;
+ size_t len;
+
+ if( ( ret = asn1_get_tag( p, end, &len, ASN1_INTEGER ) ) != 0 )
+ return( ret );
+
+ if( len > sizeof( int ) || ( **p & 0x80 ) != 0 )
+ return( POLARSSL_ERR_ASN1_INVALID_LENGTH );
+
+ *val = 0;
+
+ while( len-- > 0 )
+ {
+ *val = ( *val << 8 ) | **p;
+ (*p)++;
+ }
+
+ return( 0 );
+}
+
+#if defined(POLARSSL_BIGNUM_C)
+int asn1_get_mpi( unsigned char **p,
+ const unsigned char *end,
+ mpi *X )
+{
+ int ret;
+ size_t len;
+
+ if( ( ret = asn1_get_tag( p, end, &len, ASN1_INTEGER ) ) != 0 )
+ return( ret );
+
+ ret = mpi_read_binary( X, *p, len );
+
+ *p += len;
+
+ return( ret );
+}
+#endif /* POLARSSL_BIGNUM_C */
+
+int asn1_get_bitstring( unsigned char **p, const unsigned char *end,
+ asn1_bitstring *bs)
+{
+ int ret;
+
+ /* Certificate type is a single byte bitstring */
+ if( ( ret = asn1_get_tag( p, end, &bs->len, ASN1_BIT_STRING ) ) != 0 )
+ return( ret );
+
+ /* Check length, subtract one for actual bit string length */
+ if ( bs->len < 1 )
+ return( POLARSSL_ERR_ASN1_OUT_OF_DATA );
+ bs->len -= 1;
+
+ /* Get number of unused bits, ensure unused bits <= 7 */
+ bs->unused_bits = **p;
+ if( bs->unused_bits > 7 )
+ return( POLARSSL_ERR_ASN1_INVALID_LENGTH );
+ (*p)++;
+
+ /* Get actual bitstring */
+ bs->p = *p;
+ *p += bs->len;
+
+ if( *p != end )
+ return( POLARSSL_ERR_ASN1_LENGTH_MISMATCH );
+
+ return 0;
+}
+
+
+/*
+ * Parses and splits an ASN.1 "SEQUENCE OF <tag>"
+ */
+int asn1_get_sequence_of( unsigned char **p,
+ const unsigned char *end,
+ asn1_sequence *cur,
+ int tag)
+{
+ int ret;
+ size_t len;
+ asn1_buf *buf;
+
+ /* Get main sequence tag */
+ if( ( ret = asn1_get_tag( p, end, &len,
+ ASN1_CONSTRUCTED | ASN1_SEQUENCE ) ) != 0 )
+ return( ret );
+
+ if( *p + len != end )
+ return( POLARSSL_ERR_ASN1_LENGTH_MISMATCH );
+
+ while( *p < end )
+ {
+ buf = &(cur->buf);
+ buf->tag = **p;
+
+ if( ( ret = asn1_get_tag( p, end, &buf->len, tag ) ) != 0 )
+ return( ret );
+
+ buf->p = *p;
+ *p += buf->len;
+
+ /* Allocate and assign next pointer */
+ if (*p < end)
+ {
+ cur->next = (asn1_sequence *) malloc(
+ sizeof( asn1_sequence ) );
+
+ if( cur->next == NULL )
+ return( POLARSSL_ERR_ASN1_MALLOC_FAILED );
+
+ cur = cur->next;
+ }
+ }
+
+ /* Set final sequence entry's next pointer to NULL */
+ cur->next = NULL;
+
+ if( *p != end )
+ return( POLARSSL_ERR_ASN1_LENGTH_MISMATCH );
+
+ return( 0 );
+}
+
+#endif
--- /dev/null
+/*
+ * RFC 1521 base64 encoding/decoding
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "polarssl/config.h"
+
+#if defined(POLARSSL_BASE64_C)
+
+#include "polarssl/base64.h"
+
+static const unsigned char base64_enc_map[64] =
+{
+ 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J',
+ 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T',
+ 'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd',
+ 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n',
+ 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x',
+ 'y', 'z', '0', '1', '2', '3', '4', '5', '6', '7',
+ '8', '9', '+', '/'
+};
+
+static const unsigned char base64_dec_map[128] =
+{
+ 127, 127, 127, 127, 127, 127, 127, 127, 127, 127,
+ 127, 127, 127, 127, 127, 127, 127, 127, 127, 127,
+ 127, 127, 127, 127, 127, 127, 127, 127, 127, 127,
+ 127, 127, 127, 127, 127, 127, 127, 127, 127, 127,
+ 127, 127, 127, 62, 127, 127, 127, 63, 52, 53,
+ 54, 55, 56, 57, 58, 59, 60, 61, 127, 127,
+ 127, 64, 127, 127, 127, 0, 1, 2, 3, 4,
+ 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
+ 15, 16, 17, 18, 19, 20, 21, 22, 23, 24,
+ 25, 127, 127, 127, 127, 127, 127, 26, 27, 28,
+ 29, 30, 31, 32, 33, 34, 35, 36, 37, 38,
+ 39, 40, 41, 42, 43, 44, 45, 46, 47, 48,
+ 49, 50, 51, 127, 127, 127, 127, 127
+};
+
+/*
+ * Encode a buffer into base64 format
+ */
+int base64_encode( unsigned char *dst, size_t *dlen,
+ const unsigned char *src, size_t slen )
+{
+ size_t i, n;
+ int C1, C2, C3;
+ unsigned char *p;
+
+ if( slen == 0 )
+ return( 0 );
+
+ n = (slen << 3) / 6;
+
+ switch( (slen << 3) - (n * 6) )
+ {
+ case 2: n += 3; break;
+ case 4: n += 2; break;
+ default: break;
+ }
+
+ if( *dlen < n + 1 )
+ {
+ *dlen = n + 1;
+ return( POLARSSL_ERR_BASE64_BUFFER_TOO_SMALL );
+ }
+
+ n = (slen / 3) * 3;
+
+ for( i = 0, p = dst; i < n; i += 3 )
+ {
+ C1 = *src++;
+ C2 = *src++;
+ C3 = *src++;
+
+ *p++ = base64_enc_map[(C1 >> 2) & 0x3F];
+ *p++ = base64_enc_map[(((C1 & 3) << 4) + (C2 >> 4)) & 0x3F];
+ *p++ = base64_enc_map[(((C2 & 15) << 2) + (C3 >> 6)) & 0x3F];
+ *p++ = base64_enc_map[C3 & 0x3F];
+ }
+
+ if( i < slen )
+ {
+ C1 = *src++;
+ C2 = ((i + 1) < slen) ? *src++ : 0;
+
+ *p++ = base64_enc_map[(C1 >> 2) & 0x3F];
+ *p++ = base64_enc_map[(((C1 & 3) << 4) + (C2 >> 4)) & 0x3F];
+
+ if( (i + 1) < slen )
+ *p++ = base64_enc_map[((C2 & 15) << 2) & 0x3F];
+ else *p++ = '=';
+
+ *p++ = '=';
+ }
+
+ *dlen = p - dst;
+ *p = 0;
+
+ return( 0 );
+}
+
+/*
+ * Decode a base64-formatted buffer
+ */
+int base64_decode( unsigned char *dst, size_t *dlen,
+ const unsigned char *src, size_t slen )
+{
+ size_t i, j, n;
+ unsigned long x;
+ unsigned char *p;
+
+ for( i = j = n = 0; i < slen; i++ )
+ {
+ if( ( slen - i ) >= 2 &&
+ src[i] == '\r' && src[i + 1] == '\n' )
+ continue;
+
+ if( src[i] == '\n' )
+ continue;
+
+ if( src[i] == '=' && ++j > 2 )
+ return( POLARSSL_ERR_BASE64_INVALID_CHARACTER );
+
+ if( src[i] > 127 || base64_dec_map[src[i]] == 127 )
+ return( POLARSSL_ERR_BASE64_INVALID_CHARACTER );
+
+ if( base64_dec_map[src[i]] < 64 && j != 0 )
+ return( POLARSSL_ERR_BASE64_INVALID_CHARACTER );
+
+ n++;
+ }
+
+ if( n == 0 )
+ return( 0 );
+
+ n = ((n * 6) + 7) >> 3;
+
+ if( *dlen < n )
+ {
+ *dlen = n;
+ return( POLARSSL_ERR_BASE64_BUFFER_TOO_SMALL );
+ }
+
+ for( j = 3, n = x = 0, p = dst; i > 0; i--, src++ )
+ {
+ if( *src == '\r' || *src == '\n' )
+ continue;
+
+ j -= ( base64_dec_map[*src] == 64 );
+ x = (x << 6) | ( base64_dec_map[*src] & 0x3F );
+
+ if( ++n == 4 )
+ {
+ n = 0;
+ if( j > 0 ) *p++ = (unsigned char)( x >> 16 );
+ if( j > 1 ) *p++ = (unsigned char)( x >> 8 );
+ if( j > 2 ) *p++ = (unsigned char)( x );
+ }
+ }
+
+ *dlen = p - dst;
+
+ return( 0 );
+}
+
+#if defined(POLARSSL_SELF_TEST)
+
+#include <string.h>
+#include <stdio.h>
+
+static const unsigned char base64_test_dec[64] =
+{
+ 0x24, 0x48, 0x6E, 0x56, 0x87, 0x62, 0x5A, 0xBD,
+ 0xBF, 0x17, 0xD9, 0xA2, 0xC4, 0x17, 0x1A, 0x01,
+ 0x94, 0xED, 0x8F, 0x1E, 0x11, 0xB3, 0xD7, 0x09,
+ 0x0C, 0xB6, 0xE9, 0x10, 0x6F, 0x22, 0xEE, 0x13,
+ 0xCA, 0xB3, 0x07, 0x05, 0x76, 0xC9, 0xFA, 0x31,
+ 0x6C, 0x08, 0x34, 0xFF, 0x8D, 0xC2, 0x6C, 0x38,
+ 0x00, 0x43, 0xE9, 0x54, 0x97, 0xAF, 0x50, 0x4B,
+ 0xD1, 0x41, 0xBA, 0x95, 0x31, 0x5A, 0x0B, 0x97
+};
+
+static const unsigned char base64_test_enc[] =
+ "JEhuVodiWr2/F9mixBcaAZTtjx4Rs9cJDLbpEG8i7hPK"
+ "swcFdsn6MWwINP+Nwmw4AEPpVJevUEvRQbqVMVoLlw==";
+
+/*
+ * Checkup routine
+ */
+int base64_self_test( int verbose )
+{
+ size_t len;
+ unsigned char *src, buffer[128];
+
+ if( verbose != 0 )
+ printf( " Base64 encoding test: " );
+
+ len = sizeof( buffer );
+ src = (unsigned char *) base64_test_dec;
+
+ if( base64_encode( buffer, &len, src, 64 ) != 0 ||
+ memcmp( base64_test_enc, buffer, 88 ) != 0 )
+ {
+ if( verbose != 0 )
+ printf( "failed\n" );
+
+ return( 1 );
+ }
+
+ if( verbose != 0 )
+ printf( "passed\n Base64 decoding test: " );
+
+ len = sizeof( buffer );
+ src = (unsigned char *) base64_test_enc;
+
+ if( base64_decode( buffer, &len, src, 88 ) != 0 ||
+ memcmp( base64_test_dec, buffer, 64 ) != 0 )
+ {
+ if( verbose != 0 )
+ printf( "failed\n" );
+
+ return( 1 );
+ }
+
+ if( verbose != 0 )
+ printf( "passed\n\n" );
+
+ return( 0 );
+}
+
+#endif
+
+#endif
--- /dev/null
+/*
+ * Multi-precision integer library
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+/*
+ * This MPI implementation is based on:
+ *
+ * http://www.cacr.math.uwaterloo.ca/hac/about/chap14.pdf
+ * http://www.stillhq.com/extracted/gnupg-api/mpi/
+ * http://math.libtomcrypt.com/files/tommath.pdf
+ */
+
+#include "polarssl/config.h"
+
+#if defined(POLARSSL_BIGNUM_C)
+
+#include "polarssl/bignum.h"
+#include "polarssl/bn_mul.h"
+
+#include <stdlib.h>
+
+#define ciL (sizeof(t_uint)) /* chars in limb */
+#define biL (ciL << 3) /* bits in limb */
+#define biH (ciL << 2) /* half limb size */
+
+/*
+ * Convert between bits/chars and number of limbs
+ */
+#define BITS_TO_LIMBS(i) (((i) + biL - 1) / biL)
+#define CHARS_TO_LIMBS(i) (((i) + ciL - 1) / ciL)
+
+/*
+ * Initialize one MPI
+ */
+void mpi_init( mpi *X )
+{
+ if( X == NULL )
+ return;
+
+ X->s = 1;
+ X->n = 0;
+ X->p = NULL;
+}
+
+/*
+ * Unallocate one MPI
+ */
+void mpi_free( mpi *X )
+{
+ if( X == NULL )
+ return;
+
+ if( X->p != NULL )
+ {
+ memset( X->p, 0, X->n * ciL );
+ free( X->p );
+ }
+
+ X->s = 1;
+ X->n = 0;
+ X->p = NULL;
+}
+
+/*
+ * Enlarge to the specified number of limbs
+ */
+int mpi_grow( mpi *X, size_t nblimbs )
+{
+ t_uint *p;
+
+ if( nblimbs > POLARSSL_MPI_MAX_LIMBS )
+ return( POLARSSL_ERR_MPI_MALLOC_FAILED );
+
+ if( X->n < nblimbs )
+ {
+ if( ( p = (t_uint *) malloc( nblimbs * ciL ) ) == NULL )
+ return( POLARSSL_ERR_MPI_MALLOC_FAILED );
+
+ memset( p, 0, nblimbs * ciL );
+
+ if( X->p != NULL )
+ {
+ memcpy( p, X->p, X->n * ciL );
+ memset( X->p, 0, X->n * ciL );
+ free( X->p );
+ }
+
+ X->n = nblimbs;
+ X->p = p;
+ }
+
+ return( 0 );
+}
+
+/*
+ * Copy the contents of Y into X
+ */
+int mpi_copy( mpi *X, const mpi *Y )
+{
+ int ret;
+ size_t i;
+
+ if( X == Y )
+ return( 0 );
+
+ for( i = Y->n - 1; i > 0; i-- )
+ if( Y->p[i] != 0 )
+ break;
+ i++;
+
+ X->s = Y->s;
+
+ MPI_CHK( mpi_grow( X, i ) );
+
+ memset( X->p, 0, X->n * ciL );
+ memcpy( X->p, Y->p, i * ciL );
+
+cleanup:
+
+ return( ret );
+}
+
+/*
+ * Swap the contents of X and Y
+ */
+void mpi_swap( mpi *X, mpi *Y )
+{
+ mpi T;
+
+ memcpy( &T, X, sizeof( mpi ) );
+ memcpy( X, Y, sizeof( mpi ) );
+ memcpy( Y, &T, sizeof( mpi ) );
+}
+
+/*
+ * Set value from integer
+ */
+int mpi_lset( mpi *X, t_sint z )
+{
+ int ret;
+
+ MPI_CHK( mpi_grow( X, 1 ) );
+ memset( X->p, 0, X->n * ciL );
+
+ X->p[0] = ( z < 0 ) ? -z : z;
+ X->s = ( z < 0 ) ? -1 : 1;
+
+cleanup:
+
+ return( ret );
+}
+
+/*
+ * Get a specific bit
+ */
+int mpi_get_bit( mpi *X, size_t pos )
+{
+ if( X->n * biL <= pos )
+ return( 0 );
+
+ return ( X->p[pos / biL] >> ( pos % biL ) ) & 0x01;
+}
+
+/*
+ * Set a bit to a specific value of 0 or 1
+ */
+int mpi_set_bit( mpi *X, size_t pos, unsigned char val )
+{
+ int ret = 0;
+ size_t off = pos / biL;
+ size_t idx = pos % biL;
+
+ if( val != 0 && val != 1 )
+ return POLARSSL_ERR_MPI_BAD_INPUT_DATA;
+
+ if( X->n * biL <= pos )
+ {
+ if( val == 0 )
+ return ( 0 );
+
+ MPI_CHK( mpi_grow( X, off + 1 ) );
+ }
+
+ X->p[off] = ( X->p[off] & ~( 0x01 << idx ) ) | ( val << idx );
+
+cleanup:
+
+ return( ret );
+}
+
+/*
+ * Return the number of least significant bits
+ */
+size_t mpi_lsb( const mpi *X )
+{
+ size_t i, j, count = 0;
+
+ for( i = 0; i < X->n; i++ )
+ for( j = 0; j < biL; j++, count++ )
+ if( ( ( X->p[i] >> j ) & 1 ) != 0 )
+ return( count );
+
+ return( 0 );
+}
+
+/*
+ * Return the number of most significant bits
+ */
+size_t mpi_msb( const mpi *X )
+{
+ size_t i, j;
+
+ for( i = X->n - 1; i > 0; i-- )
+ if( X->p[i] != 0 )
+ break;
+
+ for( j = biL; j > 0; j-- )
+ if( ( ( X->p[i] >> ( j - 1 ) ) & 1 ) != 0 )
+ break;
+
+ return( ( i * biL ) + j );
+}
+
+/*
+ * Return the total size in bytes
+ */
+size_t mpi_size( const mpi *X )
+{
+ return( ( mpi_msb( X ) + 7 ) >> 3 );
+}
+
+/*
+ * Convert an ASCII character to digit value
+ */
+static int mpi_get_digit( t_uint *d, int radix, char c )
+{
+ *d = 255;
+
+ if( c >= 0x30 && c <= 0x39 ) *d = c - 0x30;
+ if( c >= 0x41 && c <= 0x46 ) *d = c - 0x37;
+ if( c >= 0x61 && c <= 0x66 ) *d = c - 0x57;
+
+ if( *d >= (t_uint) radix )
+ return( POLARSSL_ERR_MPI_INVALID_CHARACTER );
+
+ return( 0 );
+}
+
+/*
+ * Import from an ASCII string
+ */
+int mpi_read_string( mpi *X, int radix, const char *s )
+{
+ int ret;
+ size_t i, j, slen, n;
+ t_uint d;
+ mpi T;
+
+ if( radix < 2 || radix > 16 )
+ return( POLARSSL_ERR_MPI_BAD_INPUT_DATA );
+
+ mpi_init( &T );
+
+ slen = strlen( s );
+
+ if( radix == 16 )
+ {
+ n = BITS_TO_LIMBS( slen << 2 );
+
+ MPI_CHK( mpi_grow( X, n ) );
+ MPI_CHK( mpi_lset( X, 0 ) );
+
+ for( i = slen, j = 0; i > 0; i--, j++ )
+ {
+ if( i == 1 && s[i - 1] == '-' )
+ {
+ X->s = -1;
+ break;
+ }
+
+ MPI_CHK( mpi_get_digit( &d, radix, s[i - 1] ) );
+ X->p[j / (2 * ciL)] |= d << ( (j % (2 * ciL)) << 2 );
+ }
+ }
+ else
+ {
+ MPI_CHK( mpi_lset( X, 0 ) );
+
+ for( i = 0; i < slen; i++ )
+ {
+ if( i == 0 && s[i] == '-' )
+ {
+ X->s = -1;
+ continue;
+ }
+
+ MPI_CHK( mpi_get_digit( &d, radix, s[i] ) );
+ MPI_CHK( mpi_mul_int( &T, X, radix ) );
+
+ if( X->s == 1 )
+ {
+ MPI_CHK( mpi_add_int( X, &T, d ) );
+ }
+ else
+ {
+ MPI_CHK( mpi_sub_int( X, &T, d ) );
+ }
+ }
+ }
+
+cleanup:
+
+ mpi_free( &T );
+
+ return( ret );
+}
+
+/*
+ * Helper to write the digits high-order first
+ */
+static int mpi_write_hlp( mpi *X, int radix, char **p )
+{
+ int ret;
+ t_uint r;
+
+ if( radix < 2 || radix > 16 )
+ return( POLARSSL_ERR_MPI_BAD_INPUT_DATA );
+
+ MPI_CHK( mpi_mod_int( &r, X, radix ) );
+ MPI_CHK( mpi_div_int( X, NULL, X, radix ) );
+
+ if( mpi_cmp_int( X, 0 ) != 0 )
+ MPI_CHK( mpi_write_hlp( X, radix, p ) );
+
+ if( r < 10 )
+ *(*p)++ = (char)( r + 0x30 );
+ else
+ *(*p)++ = (char)( r + 0x37 );
+
+cleanup:
+
+ return( ret );
+}
+
+/*
+ * Export into an ASCII string
+ */
+int mpi_write_string( const mpi *X, int radix, char *s, size_t *slen )
+{
+ int ret = 0;
+ size_t n;
+ char *p;
+ mpi T;
+
+ if( radix < 2 || radix > 16 )
+ return( POLARSSL_ERR_MPI_BAD_INPUT_DATA );
+
+ n = mpi_msb( X );
+ if( radix >= 4 ) n >>= 1;
+ if( radix >= 16 ) n >>= 1;
+ n += 3;
+
+ if( *slen < n )
+ {
+ *slen = n;
+ return( POLARSSL_ERR_MPI_BUFFER_TOO_SMALL );
+ }
+
+ p = s;
+ mpi_init( &T );
+
+ if( X->s == -1 )
+ *p++ = '-';
+
+ if( radix == 16 )
+ {
+ int c;
+ size_t i, j, k;
+
+ for( i = X->n, k = 0; i > 0; i-- )
+ {
+ for( j = ciL; j > 0; j-- )
+ {
+ c = ( X->p[i - 1] >> ( ( j - 1 ) << 3) ) & 0xFF;
+
+ if( c == 0 && k == 0 && ( i + j + 3 ) != 0 )
+ continue;
+
+ p += sprintf( p, "%02X", c );
+ k = 1;
+ }
+ }
+ }
+ else
+ {
+ MPI_CHK( mpi_copy( &T, X ) );
+
+ if( T.s == -1 )
+ T.s = 1;
+
+ MPI_CHK( mpi_write_hlp( &T, radix, &p ) );
+ }
+
+ *p++ = '\0';
+ *slen = p - s;
+
+cleanup:
+
+ mpi_free( &T );
+
+ return( ret );
+}
+
+#if defined(POLARSSL_FS_IO)
+/*
+ * Read X from an opened file
+ */
+int mpi_read_file( mpi *X, int radix, FILE *fin )
+{
+ t_uint d;
+ size_t slen;
+ char *p;
+ /*
+ * Buffer should have space for (short) label and decimal formatted MPI,
+ * newline characters and '\0'
+ */
+ char s[ POLARSSL_MPI_READ_BUFFER_SIZE ];
+
+ memset( s, 0, sizeof( s ) );
+ if( fgets( s, sizeof( s ) - 1, fin ) == NULL )
+ return( POLARSSL_ERR_MPI_FILE_IO_ERROR );
+
+ slen = strlen( s );
+ if( slen == sizeof( s ) - 2 )
+ return( POLARSSL_ERR_MPI_BUFFER_TOO_SMALL );
+
+ if( s[slen - 1] == '\n' ) { slen--; s[slen] = '\0'; }
+ if( s[slen - 1] == '\r' ) { slen--; s[slen] = '\0'; }
+
+ p = s + slen;
+ while( --p >= s )
+ if( mpi_get_digit( &d, radix, *p ) != 0 )
+ break;
+
+ return( mpi_read_string( X, radix, p + 1 ) );
+}
+
+/*
+ * Write X into an opened file (or stdout if fout == NULL)
+ */
+int mpi_write_file( const char *p, const mpi *X, int radix, FILE *fout )
+{
+ int ret;
+ size_t n, slen, plen;
+ /*
+ * Buffer should have space for minus sign, hexified MPI and '\0'
+ */
+ char s[ 2 * POLARSSL_MPI_MAX_SIZE + 2 ];
+
+ n = sizeof( s );
+ memset( s, 0, n );
+ n -= 2;
+
+ MPI_CHK( mpi_write_string( X, radix, s, (size_t *) &n ) );
+
+ if( p == NULL ) p = "";
+
+ plen = strlen( p );
+ slen = strlen( s );
+ s[slen++] = '\r';
+ s[slen++] = '\n';
+
+ if( fout != NULL )
+ {
+ if( fwrite( p, 1, plen, fout ) != plen ||
+ fwrite( s, 1, slen, fout ) != slen )
+ return( POLARSSL_ERR_MPI_FILE_IO_ERROR );
+ }
+ else
+ printf( "%s%s", p, s );
+
+cleanup:
+
+ return( ret );
+}
+#endif /* POLARSSL_FS_IO */
+
+/*
+ * Import X from unsigned binary data, big endian
+ */
+int mpi_read_binary( mpi *X, const unsigned char *buf, size_t buflen )
+{
+ int ret;
+ size_t i, j, n;
+
+ for( n = 0; n < buflen; n++ )
+ if( buf[n] != 0 )
+ break;
+
+ MPI_CHK( mpi_grow( X, CHARS_TO_LIMBS( buflen - n ) ) );
+ MPI_CHK( mpi_lset( X, 0 ) );
+
+ for( i = buflen, j = 0; i > n; i--, j++ )
+ X->p[j / ciL] |= ((t_uint) buf[i - 1]) << ((j % ciL) << 3);
+
+cleanup:
+
+ return( ret );
+}
+
+/*
+ * Export X into unsigned binary data, big endian
+ */
+int mpi_write_binary( const mpi *X, unsigned char *buf, size_t buflen )
+{
+ size_t i, j, n;
+
+ n = mpi_size( X );
+
+ if( buflen < n )
+ return( POLARSSL_ERR_MPI_BUFFER_TOO_SMALL );
+
+ memset( buf, 0, buflen );
+
+ for( i = buflen - 1, j = 0; n > 0; i--, j++, n-- )
+ buf[i] = (unsigned char)( X->p[j / ciL] >> ((j % ciL) << 3) );
+
+ return( 0 );
+}
+
+/*
+ * Left-shift: X <<= count
+ */
+int mpi_shift_l( mpi *X, size_t count )
+{
+ int ret;
+ size_t i, v0, t1;
+ t_uint r0 = 0, r1;
+
+ v0 = count / (biL );
+ t1 = count & (biL - 1);
+
+ i = mpi_msb( X ) + count;
+
+ if( X->n * biL < i )
+ MPI_CHK( mpi_grow( X, BITS_TO_LIMBS( i ) ) );
+
+ ret = 0;
+
+ /*
+ * shift by count / limb_size
+ */
+ if( v0 > 0 )
+ {
+ for( i = X->n; i > v0; i-- )
+ X->p[i - 1] = X->p[i - v0 - 1];
+
+ for( ; i > 0; i-- )
+ X->p[i - 1] = 0;
+ }
+
+ /*
+ * shift by count % limb_size
+ */
+ if( t1 > 0 )
+ {
+ for( i = v0; i < X->n; i++ )
+ {
+ r1 = X->p[i] >> (biL - t1);
+ X->p[i] <<= t1;
+ X->p[i] |= r0;
+ r0 = r1;
+ }
+ }
+
+cleanup:
+
+ return( ret );
+}
+
+/*
+ * Right-shift: X >>= count
+ */
+int mpi_shift_r( mpi *X, size_t count )
+{
+ size_t i, v0, v1;
+ t_uint r0 = 0, r1;
+
+ v0 = count / biL;
+ v1 = count & (biL - 1);
+
+ /*
+ * shift by count / limb_size
+ */
+ if( v0 > 0 )
+ {
+ for( i = 0; i < X->n - v0; i++ )
+ X->p[i] = X->p[i + v0];
+
+ for( ; i < X->n; i++ )
+ X->p[i] = 0;
+ }
+
+ /*
+ * shift by count % limb_size
+ */
+ if( v1 > 0 )
+ {
+ for( i = X->n; i > 0; i-- )
+ {
+ r1 = X->p[i - 1] << (biL - v1);
+ X->p[i - 1] >>= v1;
+ X->p[i - 1] |= r0;
+ r0 = r1;
+ }
+ }
+
+ return( 0 );
+}
+
+/*
+ * Compare unsigned values
+ */
+int mpi_cmp_abs( const mpi *X, const mpi *Y )
+{
+ size_t i, j;
+
+ for( i = X->n; i > 0; i-- )
+ if( X->p[i - 1] != 0 )
+ break;
+
+ for( j = Y->n; j > 0; j-- )
+ if( Y->p[j - 1] != 0 )
+ break;
+
+ if( i == 0 && j == 0 )
+ return( 0 );
+
+ if( i > j ) return( 1 );
+ if( j > i ) return( -1 );
+
+ for( ; i > 0; i-- )
+ {
+ if( X->p[i - 1] > Y->p[i - 1] ) return( 1 );
+ if( X->p[i - 1] < Y->p[i - 1] ) return( -1 );
+ }
+
+ return( 0 );
+}
+
+/*
+ * Compare signed values
+ */
+int mpi_cmp_mpi( const mpi *X, const mpi *Y )
+{
+ size_t i, j;
+
+ for( i = X->n; i > 0; i-- )
+ if( X->p[i - 1] != 0 )
+ break;
+
+ for( j = Y->n; j > 0; j-- )
+ if( Y->p[j - 1] != 0 )
+ break;
+
+ if( i == 0 && j == 0 )
+ return( 0 );
+
+ if( i > j ) return( X->s );
+ if( j > i ) return( -X->s );
+
+ if( X->s > 0 && Y->s < 0 ) return( 1 );
+ if( Y->s > 0 && X->s < 0 ) return( -1 );
+
+ for( ; i > 0; i-- )
+ {
+ if( X->p[i - 1] > Y->p[i - 1] ) return( X->s );
+ if( X->p[i - 1] < Y->p[i - 1] ) return( -X->s );
+ }
+
+ return( 0 );
+}
+
+/*
+ * Compare signed values
+ */
+int mpi_cmp_int( const mpi *X, t_sint z )
+{
+ mpi Y;
+ t_uint p[1];
+
+ *p = ( z < 0 ) ? -z : z;
+ Y.s = ( z < 0 ) ? -1 : 1;
+ Y.n = 1;
+ Y.p = p;
+
+ return( mpi_cmp_mpi( X, &Y ) );
+}
+
+/*
+ * Unsigned addition: X = |A| + |B| (HAC 14.7)
+ */
+int mpi_add_abs( mpi *X, const mpi *A, const mpi *B )
+{
+ int ret;
+ size_t i, j;
+ t_uint *o, *p, c;
+
+ if( X == B )
+ {
+ const mpi *T = A; A = X; B = T;
+ }
+
+ if( X != A )
+ MPI_CHK( mpi_copy( X, A ) );
+
+ /*
+ * X should always be positive as a result of unsigned additions.
+ */
+ X->s = 1;
+
+ for( j = B->n; j > 0; j-- )
+ if( B->p[j - 1] != 0 )
+ break;
+
+ MPI_CHK( mpi_grow( X, j ) );
+
+ o = B->p; p = X->p; c = 0;
+
+ for( i = 0; i < j; i++, o++, p++ )
+ {
+ *p += c; c = ( *p < c );
+ *p += *o; c += ( *p < *o );
+ }
+
+ while( c != 0 )
+ {
+ if( i >= X->n )
+ {
+ MPI_CHK( mpi_grow( X, i + 1 ) );
+ p = X->p + i;
+ }
+
+ *p += c; c = ( *p < c ); i++;
+ }
+
+cleanup:
+
+ return( ret );
+}
+
+/*
+ * Helper for mpi substraction
+ */
+static void mpi_sub_hlp( size_t n, t_uint *s, t_uint *d )
+{
+ size_t i;
+ t_uint c, z;
+
+ for( i = c = 0; i < n; i++, s++, d++ )
+ {
+ z = ( *d < c ); *d -= c;
+ c = ( *d < *s ) + z; *d -= *s;
+ }
+
+ while( c != 0 )
+ {
+ z = ( *d < c ); *d -= c;
+ c = z; i++; d++;
+ }
+}
+
+/*
+ * Unsigned substraction: X = |A| - |B| (HAC 14.9)
+ */
+int mpi_sub_abs( mpi *X, const mpi *A, const mpi *B )
+{
+ mpi TB;
+ int ret;
+ size_t n;
+
+ if( mpi_cmp_abs( A, B ) < 0 )
+ return( POLARSSL_ERR_MPI_NEGATIVE_VALUE );
+
+ mpi_init( &TB );
+
+ if( X == B )
+ {
+ MPI_CHK( mpi_copy( &TB, B ) );
+ B = &TB;
+ }
+
+ if( X != A )
+ MPI_CHK( mpi_copy( X, A ) );
+
+ /*
+ * X should always be positive as a result of unsigned substractions.
+ */
+ X->s = 1;
+
+ ret = 0;
+
+ for( n = B->n; n > 0; n-- )
+ if( B->p[n - 1] != 0 )
+ break;
+
+ mpi_sub_hlp( n, B->p, X->p );
+
+cleanup:
+
+ mpi_free( &TB );
+
+ return( ret );
+}
+
+/*
+ * Signed addition: X = A + B
+ */
+int mpi_add_mpi( mpi *X, const mpi *A, const mpi *B )
+{
+ int ret, s = A->s;
+
+ if( A->s * B->s < 0 )
+ {
+ if( mpi_cmp_abs( A, B ) >= 0 )
+ {
+ MPI_CHK( mpi_sub_abs( X, A, B ) );
+ X->s = s;
+ }
+ else
+ {
+ MPI_CHK( mpi_sub_abs( X, B, A ) );
+ X->s = -s;
+ }
+ }
+ else
+ {
+ MPI_CHK( mpi_add_abs( X, A, B ) );
+ X->s = s;
+ }
+
+cleanup:
+
+ return( ret );
+}
+
+/*
+ * Signed substraction: X = A - B
+ */
+int mpi_sub_mpi( mpi *X, const mpi *A, const mpi *B )
+{
+ int ret, s = A->s;
+
+ if( A->s * B->s > 0 )
+ {
+ if( mpi_cmp_abs( A, B ) >= 0 )
+ {
+ MPI_CHK( mpi_sub_abs( X, A, B ) );
+ X->s = s;
+ }
+ else
+ {
+ MPI_CHK( mpi_sub_abs( X, B, A ) );
+ X->s = -s;
+ }
+ }
+ else
+ {
+ MPI_CHK( mpi_add_abs( X, A, B ) );
+ X->s = s;
+ }
+
+cleanup:
+
+ return( ret );
+}
+
+/*
+ * Signed addition: X = A + b
+ */
+int mpi_add_int( mpi *X, const mpi *A, t_sint b )
+{
+ mpi _B;
+ t_uint p[1];
+
+ p[0] = ( b < 0 ) ? -b : b;
+ _B.s = ( b < 0 ) ? -1 : 1;
+ _B.n = 1;
+ _B.p = p;
+
+ return( mpi_add_mpi( X, A, &_B ) );
+}
+
+/*
+ * Signed substraction: X = A - b
+ */
+int mpi_sub_int( mpi *X, const mpi *A, t_sint b )
+{
+ mpi _B;
+ t_uint p[1];
+
+ p[0] = ( b < 0 ) ? -b : b;
+ _B.s = ( b < 0 ) ? -1 : 1;
+ _B.n = 1;
+ _B.p = p;
+
+ return( mpi_sub_mpi( X, A, &_B ) );
+}
+
+/*
+ * Helper for mpi multiplication
+ */
+static void mpi_mul_hlp( size_t i, t_uint *s, t_uint *d, t_uint b )
+{
+ t_uint c = 0, t = 0;
+
+#if defined(MULADDC_HUIT)
+ for( ; i >= 8; i -= 8 )
+ {
+ MULADDC_INIT
+ MULADDC_HUIT
+ MULADDC_STOP
+ }
+
+ for( ; i > 0; i-- )
+ {
+ MULADDC_INIT
+ MULADDC_CORE
+ MULADDC_STOP
+ }
+#else
+ for( ; i >= 16; i -= 16 )
+ {
+ MULADDC_INIT
+ MULADDC_CORE MULADDC_CORE
+ MULADDC_CORE MULADDC_CORE
+ MULADDC_CORE MULADDC_CORE
+ MULADDC_CORE MULADDC_CORE
+
+ MULADDC_CORE MULADDC_CORE
+ MULADDC_CORE MULADDC_CORE
+ MULADDC_CORE MULADDC_CORE
+ MULADDC_CORE MULADDC_CORE
+ MULADDC_STOP
+ }
+
+ for( ; i >= 8; i -= 8 )
+ {
+ MULADDC_INIT
+ MULADDC_CORE MULADDC_CORE
+ MULADDC_CORE MULADDC_CORE
+
+ MULADDC_CORE MULADDC_CORE
+ MULADDC_CORE MULADDC_CORE
+ MULADDC_STOP
+ }
+
+ for( ; i > 0; i-- )
+ {
+ MULADDC_INIT
+ MULADDC_CORE
+ MULADDC_STOP
+ }
+#endif
+
+ t++;
+
+ do {
+ *d += c; c = ( *d < c ); d++;
+ }
+ while( c != 0 );
+}
+
+/*
+ * Baseline multiplication: X = A * B (HAC 14.12)
+ */
+int mpi_mul_mpi( mpi *X, const mpi *A, const mpi *B )
+{
+ int ret;
+ size_t i, j;
+ mpi TA, TB;
+
+ mpi_init( &TA ); mpi_init( &TB );
+
+ if( X == A ) { MPI_CHK( mpi_copy( &TA, A ) ); A = &TA; }
+ if( X == B ) { MPI_CHK( mpi_copy( &TB, B ) ); B = &TB; }
+
+ for( i = A->n; i > 0; i-- )
+ if( A->p[i - 1] != 0 )
+ break;
+
+ for( j = B->n; j > 0; j-- )
+ if( B->p[j - 1] != 0 )
+ break;
+
+ MPI_CHK( mpi_grow( X, i + j ) );
+ MPI_CHK( mpi_lset( X, 0 ) );
+
+ for( i++; j > 0; j-- )
+ mpi_mul_hlp( i - 1, A->p, X->p + j - 1, B->p[j - 1] );
+
+ X->s = A->s * B->s;
+
+cleanup:
+
+ mpi_free( &TB ); mpi_free( &TA );
+
+ return( ret );
+}
+
+/*
+ * Baseline multiplication: X = A * b
+ */
+int mpi_mul_int( mpi *X, const mpi *A, t_sint b )
+{
+ mpi _B;
+ t_uint p[1];
+
+ _B.s = 1;
+ _B.n = 1;
+ _B.p = p;
+ p[0] = b;
+
+ return( mpi_mul_mpi( X, A, &_B ) );
+}
+
+/*
+ * Division by mpi: A = Q * B + R (HAC 14.20)
+ */
+int mpi_div_mpi( mpi *Q, mpi *R, const mpi *A, const mpi *B )
+{
+ int ret;
+ size_t i, n, t, k;
+ mpi X, Y, Z, T1, T2;
+
+ if( mpi_cmp_int( B, 0 ) == 0 )
+ return( POLARSSL_ERR_MPI_DIVISION_BY_ZERO );
+
+ mpi_init( &X ); mpi_init( &Y ); mpi_init( &Z );
+ mpi_init( &T1 ); mpi_init( &T2 );
+
+ if( mpi_cmp_abs( A, B ) < 0 )
+ {
+ if( Q != NULL ) MPI_CHK( mpi_lset( Q, 0 ) );
+ if( R != NULL ) MPI_CHK( mpi_copy( R, A ) );
+ return( 0 );
+ }
+
+ MPI_CHK( mpi_copy( &X, A ) );
+ MPI_CHK( mpi_copy( &Y, B ) );
+ X.s = Y.s = 1;
+
+ MPI_CHK( mpi_grow( &Z, A->n + 2 ) );
+ MPI_CHK( mpi_lset( &Z, 0 ) );
+ MPI_CHK( mpi_grow( &T1, 2 ) );
+ MPI_CHK( mpi_grow( &T2, 3 ) );
+
+ k = mpi_msb( &Y ) % biL;
+ if( k < biL - 1 )
+ {
+ k = biL - 1 - k;
+ MPI_CHK( mpi_shift_l( &X, k ) );
+ MPI_CHK( mpi_shift_l( &Y, k ) );
+ }
+ else k = 0;
+
+ n = X.n - 1;
+ t = Y.n - 1;
+ mpi_shift_l( &Y, biL * (n - t) );
+
+ while( mpi_cmp_mpi( &X, &Y ) >= 0 )
+ {
+ Z.p[n - t]++;
+ mpi_sub_mpi( &X, &X, &Y );
+ }
+ mpi_shift_r( &Y, biL * (n - t) );
+
+ for( i = n; i > t ; i-- )
+ {
+ if( X.p[i] >= Y.p[t] )
+ Z.p[i - t - 1] = ~0;
+ else
+ {
+#if defined(POLARSSL_HAVE_LONGLONG)
+ t_udbl r;
+
+ r = (t_udbl) X.p[i] << biL;
+ r |= (t_udbl) X.p[i - 1];
+ r /= Y.p[t];
+ if( r > ((t_udbl) 1 << biL) - 1)
+ r = ((t_udbl) 1 << biL) - 1;
+
+ Z.p[i - t - 1] = (t_uint) r;
+#else
+ /*
+ * __udiv_qrnnd_c, from gmp/longlong.h
+ */
+ t_uint q0, q1, r0, r1;
+ t_uint d0, d1, d, m;
+
+ d = Y.p[t];
+ d0 = ( d << biH ) >> biH;
+ d1 = ( d >> biH );
+
+ q1 = X.p[i] / d1;
+ r1 = X.p[i] - d1 * q1;
+ r1 <<= biH;
+ r1 |= ( X.p[i - 1] >> biH );
+
+ m = q1 * d0;
+ if( r1 < m )
+ {
+ q1--, r1 += d;
+ while( r1 >= d && r1 < m )
+ q1--, r1 += d;
+ }
+ r1 -= m;
+
+ q0 = r1 / d1;
+ r0 = r1 - d1 * q0;
+ r0 <<= biH;
+ r0 |= ( X.p[i - 1] << biH ) >> biH;
+
+ m = q0 * d0;
+ if( r0 < m )
+ {
+ q0--, r0 += d;
+ while( r0 >= d && r0 < m )
+ q0--, r0 += d;
+ }
+ r0 -= m;
+
+ Z.p[i - t - 1] = ( q1 << biH ) | q0;
+#endif
+ }
+
+ Z.p[i - t - 1]++;
+ do
+ {
+ Z.p[i - t - 1]--;
+
+ MPI_CHK( mpi_lset( &T1, 0 ) );
+ T1.p[0] = (t < 1) ? 0 : Y.p[t - 1];
+ T1.p[1] = Y.p[t];
+ MPI_CHK( mpi_mul_int( &T1, &T1, Z.p[i - t - 1] ) );
+
+ MPI_CHK( mpi_lset( &T2, 0 ) );
+ T2.p[0] = (i < 2) ? 0 : X.p[i - 2];
+ T2.p[1] = (i < 1) ? 0 : X.p[i - 1];
+ T2.p[2] = X.p[i];
+ }
+ while( mpi_cmp_mpi( &T1, &T2 ) > 0 );
+
+ MPI_CHK( mpi_mul_int( &T1, &Y, Z.p[i - t - 1] ) );
+ MPI_CHK( mpi_shift_l( &T1, biL * (i - t - 1) ) );
+ MPI_CHK( mpi_sub_mpi( &X, &X, &T1 ) );
+
+ if( mpi_cmp_int( &X, 0 ) < 0 )
+ {
+ MPI_CHK( mpi_copy( &T1, &Y ) );
+ MPI_CHK( mpi_shift_l( &T1, biL * (i - t - 1) ) );
+ MPI_CHK( mpi_add_mpi( &X, &X, &T1 ) );
+ Z.p[i - t - 1]--;
+ }
+ }
+
+ if( Q != NULL )
+ {
+ mpi_copy( Q, &Z );
+ Q->s = A->s * B->s;
+ }
+
+ if( R != NULL )
+ {
+ mpi_shift_r( &X, k );
+ mpi_copy( R, &X );
+
+ R->s = A->s;
+ if( mpi_cmp_int( R, 0 ) == 0 )
+ R->s = 1;
+ }
+
+cleanup:
+
+ mpi_free( &X ); mpi_free( &Y ); mpi_free( &Z );
+ mpi_free( &T1 ); mpi_free( &T2 );
+
+ return( ret );
+}
+
+/*
+ * Division by int: A = Q * b + R
+ *
+ * Returns 0 if successful
+ * 1 if memory allocation failed
+ * POLARSSL_ERR_MPI_DIVISION_BY_ZERO if b == 0
+ */
+int mpi_div_int( mpi *Q, mpi *R, const mpi *A, t_sint b )
+{
+ mpi _B;
+ t_uint p[1];
+
+ p[0] = ( b < 0 ) ? -b : b;
+ _B.s = ( b < 0 ) ? -1 : 1;
+ _B.n = 1;
+ _B.p = p;
+
+ return( mpi_div_mpi( Q, R, A, &_B ) );
+}
+
+/*
+ * Modulo: R = A mod B
+ */
+int mpi_mod_mpi( mpi *R, const mpi *A, const mpi *B )
+{
+ int ret;
+
+ if( mpi_cmp_int( B, 0 ) < 0 )
+ return POLARSSL_ERR_MPI_NEGATIVE_VALUE;
+
+ MPI_CHK( mpi_div_mpi( NULL, R, A, B ) );
+
+ while( mpi_cmp_int( R, 0 ) < 0 )
+ MPI_CHK( mpi_add_mpi( R, R, B ) );
+
+ while( mpi_cmp_mpi( R, B ) >= 0 )
+ MPI_CHK( mpi_sub_mpi( R, R, B ) );
+
+cleanup:
+
+ return( ret );
+}
+
+/*
+ * Modulo: r = A mod b
+ */
+int mpi_mod_int( t_uint *r, const mpi *A, t_sint b )
+{
+ size_t i;
+ t_uint x, y, z;
+
+ if( b == 0 )
+ return( POLARSSL_ERR_MPI_DIVISION_BY_ZERO );
+
+ if( b < 0 )
+ return POLARSSL_ERR_MPI_NEGATIVE_VALUE;
+
+ /*
+ * handle trivial cases
+ */
+ if( b == 1 )
+ {
+ *r = 0;
+ return( 0 );
+ }
+
+ if( b == 2 )
+ {
+ *r = A->p[0] & 1;
+ return( 0 );
+ }
+
+ /*
+ * general case
+ */
+ for( i = A->n, y = 0; i > 0; i-- )
+ {
+ x = A->p[i - 1];
+ y = ( y << biH ) | ( x >> biH );
+ z = y / b;
+ y -= z * b;
+
+ x <<= biH;
+ y = ( y << biH ) | ( x >> biH );
+ z = y / b;
+ y -= z * b;
+ }
+
+ /*
+ * If A is negative, then the current y represents a negative value.
+ * Flipping it to the positive side.
+ */
+ if( A->s < 0 && y != 0 )
+ y = b - y;
+
+ *r = y;
+
+ return( 0 );
+}
+
+/*
+ * Fast Montgomery initialization (thanks to Tom St Denis)
+ */
+static void mpi_montg_init( t_uint *mm, const mpi *N )
+{
+ t_uint x, m0 = N->p[0];
+
+ x = m0;
+ x += ( ( m0 + 2 ) & 4 ) << 1;
+ x *= ( 2 - ( m0 * x ) );
+
+ if( biL >= 16 ) x *= ( 2 - ( m0 * x ) );
+ if( biL >= 32 ) x *= ( 2 - ( m0 * x ) );
+ if( biL >= 64 ) x *= ( 2 - ( m0 * x ) );
+
+ *mm = ~x + 1;
+}
+
+/*
+ * Montgomery multiplication: A = A * B * R^-1 mod N (HAC 14.36)
+ */
+static void mpi_montmul( mpi *A, const mpi *B, const mpi *N, t_uint mm, const mpi *T )
+{
+ size_t i, n, m;
+ t_uint u0, u1, *d;
+
+ memset( T->p, 0, T->n * ciL );
+
+ d = T->p;
+ n = N->n;
+ m = ( B->n < n ) ? B->n : n;
+
+ for( i = 0; i < n; i++ )
+ {
+ /*
+ * T = (T + u0*B + u1*N) / 2^biL
+ */
+ u0 = A->p[i];
+ u1 = ( d[0] + u0 * B->p[0] ) * mm;
+
+ mpi_mul_hlp( m, B->p, d, u0 );
+ mpi_mul_hlp( n, N->p, d, u1 );
+
+ *d++ = u0; d[n + 1] = 0;
+ }
+
+ memcpy( A->p, d, (n + 1) * ciL );
+
+ if( mpi_cmp_abs( A, N ) >= 0 )
+ mpi_sub_hlp( n, N->p, A->p );
+ else
+ /* prevent timing attacks */
+ mpi_sub_hlp( n, A->p, T->p );
+}
+
+/*
+ * Montgomery reduction: A = A * R^-1 mod N
+ */
+static void mpi_montred( mpi *A, const mpi *N, t_uint mm, const mpi *T )
+{
+ t_uint z = 1;
+ mpi U;
+
+ U.n = U.s = z;
+ U.p = &z;
+
+ mpi_montmul( A, &U, N, mm, T );
+}
+
+/*
+ * Sliding-window exponentiation: X = A^E mod N (HAC 14.85)
+ */
+int mpi_exp_mod( mpi *X, const mpi *A, const mpi *E, const mpi *N, mpi *_RR )
+{
+ int ret;
+ size_t wbits, wsize, one = 1;
+ size_t i, j, nblimbs;
+ size_t bufsize, nbits;
+ t_uint ei, mm, state;
+ mpi RR, T, W[ 2 << POLARSSL_MPI_WINDOW_SIZE ];
+
+ if( mpi_cmp_int( N, 0 ) < 0 || ( N->p[0] & 1 ) == 0 )
+ return( POLARSSL_ERR_MPI_BAD_INPUT_DATA );
+
+ /*
+ * Init temps and window size
+ */
+ mpi_montg_init( &mm, N );
+ mpi_init( &RR ); mpi_init( &T );
+ memset( W, 0, sizeof( W ) );
+
+ i = mpi_msb( E );
+
+ wsize = ( i > 671 ) ? 6 : ( i > 239 ) ? 5 :
+ ( i > 79 ) ? 4 : ( i > 23 ) ? 3 : 1;
+
+ if( wsize > POLARSSL_MPI_WINDOW_SIZE )
+ wsize = POLARSSL_MPI_WINDOW_SIZE;
+
+ j = N->n + 1;
+ MPI_CHK( mpi_grow( X, j ) );
+ MPI_CHK( mpi_grow( &W[1], j ) );
+ MPI_CHK( mpi_grow( &T, j * 2 ) );
+
+ /*
+ * If 1st call, pre-compute R^2 mod N
+ */
+ if( _RR == NULL || _RR->p == NULL )
+ {
+ MPI_CHK( mpi_lset( &RR, 1 ) );
+ MPI_CHK( mpi_shift_l( &RR, N->n * 2 * biL ) );
+ MPI_CHK( mpi_mod_mpi( &RR, &RR, N ) );
+
+ if( _RR != NULL )
+ memcpy( _RR, &RR, sizeof( mpi ) );
+ }
+ else
+ memcpy( &RR, _RR, sizeof( mpi ) );
+
+ /*
+ * W[1] = A * R^2 * R^-1 mod N = A * R mod N
+ */
+ if( mpi_cmp_mpi( A, N ) >= 0 )
+ mpi_mod_mpi( &W[1], A, N );
+ else mpi_copy( &W[1], A );
+
+ mpi_montmul( &W[1], &RR, N, mm, &T );
+
+ /*
+ * X = R^2 * R^-1 mod N = R mod N
+ */
+ MPI_CHK( mpi_copy( X, &RR ) );
+ mpi_montred( X, N, mm, &T );
+
+ if( wsize > 1 )
+ {
+ /*
+ * W[1 << (wsize - 1)] = W[1] ^ (wsize - 1)
+ */
+ j = one << (wsize - 1);
+
+ MPI_CHK( mpi_grow( &W[j], N->n + 1 ) );
+ MPI_CHK( mpi_copy( &W[j], &W[1] ) );
+
+ for( i = 0; i < wsize - 1; i++ )
+ mpi_montmul( &W[j], &W[j], N, mm, &T );
+
+ /*
+ * W[i] = W[i - 1] * W[1]
+ */
+ for( i = j + 1; i < (one << wsize); i++ )
+ {
+ MPI_CHK( mpi_grow( &W[i], N->n + 1 ) );
+ MPI_CHK( mpi_copy( &W[i], &W[i - 1] ) );
+
+ mpi_montmul( &W[i], &W[1], N, mm, &T );
+ }
+ }
+
+ nblimbs = E->n;
+ bufsize = 0;
+ nbits = 0;
+ wbits = 0;
+ state = 0;
+
+ while( 1 )
+ {
+ if( bufsize == 0 )
+ {
+ if( nblimbs-- == 0 )
+ break;
+
+ bufsize = sizeof( t_uint ) << 3;
+ }
+
+ bufsize--;
+
+ ei = (E->p[nblimbs] >> bufsize) & 1;
+
+ /*
+ * skip leading 0s
+ */
+ if( ei == 0 && state == 0 )
+ continue;
+
+ if( ei == 0 && state == 1 )
+ {
+ /*
+ * out of window, square X
+ */
+ mpi_montmul( X, X, N, mm, &T );
+ continue;
+ }
+
+ /*
+ * add ei to current window
+ */
+ state = 2;
+
+ nbits++;
+ wbits |= (ei << (wsize - nbits));
+
+ if( nbits == wsize )
+ {
+ /*
+ * X = X^wsize R^-1 mod N
+ */
+ for( i = 0; i < wsize; i++ )
+ mpi_montmul( X, X, N, mm, &T );
+
+ /*
+ * X = X * W[wbits] R^-1 mod N
+ */
+ mpi_montmul( X, &W[wbits], N, mm, &T );
+
+ state--;
+ nbits = 0;
+ wbits = 0;
+ }
+ }
+
+ /*
+ * process the remaining bits
+ */
+ for( i = 0; i < nbits; i++ )
+ {
+ mpi_montmul( X, X, N, mm, &T );
+
+ wbits <<= 1;
+
+ if( (wbits & (one << wsize)) != 0 )
+ mpi_montmul( X, &W[1], N, mm, &T );
+ }
+
+ /*
+ * X = A^E * R * R^-1 mod N = A^E mod N
+ */
+ mpi_montred( X, N, mm, &T );
+
+cleanup:
+
+ for( i = (one << (wsize - 1)); i < (one << wsize); i++ )
+ mpi_free( &W[i] );
+
+ mpi_free( &W[1] ); mpi_free( &T );
+
+ if( _RR == NULL )
+ mpi_free( &RR );
+
+ return( ret );
+}
+
+/*
+ * Greatest common divisor: G = gcd(A, B) (HAC 14.54)
+ */
+int mpi_gcd( mpi *G, const mpi *A, const mpi *B )
+{
+ int ret;
+ size_t lz, lzt;
+ mpi TG, TA, TB;
+
+ mpi_init( &TG ); mpi_init( &TA ); mpi_init( &TB );
+
+ MPI_CHK( mpi_copy( &TA, A ) );
+ MPI_CHK( mpi_copy( &TB, B ) );
+
+ lz = mpi_lsb( &TA );
+ lzt = mpi_lsb( &TB );
+
+ if ( lzt < lz )
+ lz = lzt;
+
+ MPI_CHK( mpi_shift_r( &TA, lz ) );
+ MPI_CHK( mpi_shift_r( &TB, lz ) );
+
+ TA.s = TB.s = 1;
+
+ while( mpi_cmp_int( &TA, 0 ) != 0 )
+ {
+ MPI_CHK( mpi_shift_r( &TA, mpi_lsb( &TA ) ) );
+ MPI_CHK( mpi_shift_r( &TB, mpi_lsb( &TB ) ) );
+
+ if( mpi_cmp_mpi( &TA, &TB ) >= 0 )
+ {
+ MPI_CHK( mpi_sub_abs( &TA, &TA, &TB ) );
+ MPI_CHK( mpi_shift_r( &TA, 1 ) );
+ }
+ else
+ {
+ MPI_CHK( mpi_sub_abs( &TB, &TB, &TA ) );
+ MPI_CHK( mpi_shift_r( &TB, 1 ) );
+ }
+ }
+
+ MPI_CHK( mpi_shift_l( &TB, lz ) );
+ MPI_CHK( mpi_copy( G, &TB ) );
+
+cleanup:
+
+ mpi_free( &TG ); mpi_free( &TA ); mpi_free( &TB );
+
+ return( ret );
+}
+
+int mpi_fill_random( mpi *X, size_t size,
+ int (*f_rng)(void *, unsigned char *, size_t),
+ void *p_rng )
+{
+ int ret;
+
+ MPI_CHK( mpi_grow( X, size ) );
+ MPI_CHK( mpi_lset( X, 0 ) );
+
+ MPI_CHK( f_rng( p_rng, (unsigned char *) X->p, X->n * ciL ) );
+
+cleanup:
+ return( ret );
+}
+
+#if defined(POLARSSL_GENPRIME)
+
+/*
+ * Modular inverse: X = A^-1 mod N (HAC 14.61 / 14.64)
+ */
+int mpi_inv_mod( mpi *X, const mpi *A, const mpi *N )
+{
+ int ret;
+ mpi G, TA, TU, U1, U2, TB, TV, V1, V2;
+
+ if( mpi_cmp_int( N, 0 ) <= 0 )
+ return( POLARSSL_ERR_MPI_BAD_INPUT_DATA );
+
+ mpi_init( &TA ); mpi_init( &TU ); mpi_init( &U1 ); mpi_init( &U2 );
+ mpi_init( &G ); mpi_init( &TB ); mpi_init( &TV );
+ mpi_init( &V1 ); mpi_init( &V2 );
+
+ MPI_CHK( mpi_gcd( &G, A, N ) );
+
+ if( mpi_cmp_int( &G, 1 ) != 0 )
+ {
+ ret = POLARSSL_ERR_MPI_NOT_ACCEPTABLE;
+ goto cleanup;
+ }
+
+ MPI_CHK( mpi_mod_mpi( &TA, A, N ) );
+ MPI_CHK( mpi_copy( &TU, &TA ) );
+ MPI_CHK( mpi_copy( &TB, N ) );
+ MPI_CHK( mpi_copy( &TV, N ) );
+
+ MPI_CHK( mpi_lset( &U1, 1 ) );
+ MPI_CHK( mpi_lset( &U2, 0 ) );
+ MPI_CHK( mpi_lset( &V1, 0 ) );
+ MPI_CHK( mpi_lset( &V2, 1 ) );
+
+ do
+ {
+ while( ( TU.p[0] & 1 ) == 0 )
+ {
+ MPI_CHK( mpi_shift_r( &TU, 1 ) );
+
+ if( ( U1.p[0] & 1 ) != 0 || ( U2.p[0] & 1 ) != 0 )
+ {
+ MPI_CHK( mpi_add_mpi( &U1, &U1, &TB ) );
+ MPI_CHK( mpi_sub_mpi( &U2, &U2, &TA ) );
+ }
+
+ MPI_CHK( mpi_shift_r( &U1, 1 ) );
+ MPI_CHK( mpi_shift_r( &U2, 1 ) );
+ }
+
+ while( ( TV.p[0] & 1 ) == 0 )
+ {
+ MPI_CHK( mpi_shift_r( &TV, 1 ) );
+
+ if( ( V1.p[0] & 1 ) != 0 || ( V2.p[0] & 1 ) != 0 )
+ {
+ MPI_CHK( mpi_add_mpi( &V1, &V1, &TB ) );
+ MPI_CHK( mpi_sub_mpi( &V2, &V2, &TA ) );
+ }
+
+ MPI_CHK( mpi_shift_r( &V1, 1 ) );
+ MPI_CHK( mpi_shift_r( &V2, 1 ) );
+ }
+
+ if( mpi_cmp_mpi( &TU, &TV ) >= 0 )
+ {
+ MPI_CHK( mpi_sub_mpi( &TU, &TU, &TV ) );
+ MPI_CHK( mpi_sub_mpi( &U1, &U1, &V1 ) );
+ MPI_CHK( mpi_sub_mpi( &U2, &U2, &V2 ) );
+ }
+ else
+ {
+ MPI_CHK( mpi_sub_mpi( &TV, &TV, &TU ) );
+ MPI_CHK( mpi_sub_mpi( &V1, &V1, &U1 ) );
+ MPI_CHK( mpi_sub_mpi( &V2, &V2, &U2 ) );
+ }
+ }
+ while( mpi_cmp_int( &TU, 0 ) != 0 );
+
+ while( mpi_cmp_int( &V1, 0 ) < 0 )
+ MPI_CHK( mpi_add_mpi( &V1, &V1, N ) );
+
+ while( mpi_cmp_mpi( &V1, N ) >= 0 )
+ MPI_CHK( mpi_sub_mpi( &V1, &V1, N ) );
+
+ MPI_CHK( mpi_copy( X, &V1 ) );
+
+cleanup:
+
+ mpi_free( &TA ); mpi_free( &TU ); mpi_free( &U1 ); mpi_free( &U2 );
+ mpi_free( &G ); mpi_free( &TB ); mpi_free( &TV );
+ mpi_free( &V1 ); mpi_free( &V2 );
+
+ return( ret );
+}
+
+static const int small_prime[] =
+{
+ 3, 5, 7, 11, 13, 17, 19, 23,
+ 29, 31, 37, 41, 43, 47, 53, 59,
+ 61, 67, 71, 73, 79, 83, 89, 97,
+ 101, 103, 107, 109, 113, 127, 131, 137,
+ 139, 149, 151, 157, 163, 167, 173, 179,
+ 181, 191, 193, 197, 199, 211, 223, 227,
+ 229, 233, 239, 241, 251, 257, 263, 269,
+ 271, 277, 281, 283, 293, 307, 311, 313,
+ 317, 331, 337, 347, 349, 353, 359, 367,
+ 373, 379, 383, 389, 397, 401, 409, 419,
+ 421, 431, 433, 439, 443, 449, 457, 461,
+ 463, 467, 479, 487, 491, 499, 503, 509,
+ 521, 523, 541, 547, 557, 563, 569, 571,
+ 577, 587, 593, 599, 601, 607, 613, 617,
+ 619, 631, 641, 643, 647, 653, 659, 661,
+ 673, 677, 683, 691, 701, 709, 719, 727,
+ 733, 739, 743, 751, 757, 761, 769, 773,
+ 787, 797, 809, 811, 821, 823, 827, 829,
+ 839, 853, 857, 859, 863, 877, 881, 883,
+ 887, 907, 911, 919, 929, 937, 941, 947,
+ 953, 967, 971, 977, 983, 991, 997, -103
+};
+
+/*
+ * Miller-Rabin primality test (HAC 4.24)
+ */
+int mpi_is_prime( mpi *X,
+ int (*f_rng)(void *, unsigned char *, size_t),
+ void *p_rng )
+{
+ int ret, xs;
+ size_t i, j, n, s;
+ mpi W, R, T, A, RR;
+
+ if( mpi_cmp_int( X, 0 ) == 0 ||
+ mpi_cmp_int( X, 1 ) == 0 )
+ return( POLARSSL_ERR_MPI_NOT_ACCEPTABLE );
+
+ if( mpi_cmp_int( X, 2 ) == 0 )
+ return( 0 );
+
+ mpi_init( &W ); mpi_init( &R ); mpi_init( &T ); mpi_init( &A );
+ mpi_init( &RR );
+
+ xs = X->s; X->s = 1;
+
+ /*
+ * test trivial factors first
+ */
+ if( ( X->p[0] & 1 ) == 0 )
+ return( POLARSSL_ERR_MPI_NOT_ACCEPTABLE );
+
+ for( i = 0; small_prime[i] > 0; i++ )
+ {
+ t_uint r;
+
+ if( mpi_cmp_int( X, small_prime[i] ) <= 0 )
+ return( 0 );
+
+ MPI_CHK( mpi_mod_int( &r, X, small_prime[i] ) );
+
+ if( r == 0 )
+ return( POLARSSL_ERR_MPI_NOT_ACCEPTABLE );
+ }
+
+ /*
+ * W = |X| - 1
+ * R = W >> lsb( W )
+ */
+ MPI_CHK( mpi_sub_int( &W, X, 1 ) );
+ s = mpi_lsb( &W );
+ MPI_CHK( mpi_copy( &R, &W ) );
+ MPI_CHK( mpi_shift_r( &R, s ) );
+
+ i = mpi_msb( X );
+ /*
+ * HAC, table 4.4
+ */
+ n = ( ( i >= 1300 ) ? 2 : ( i >= 850 ) ? 3 :
+ ( i >= 650 ) ? 4 : ( i >= 350 ) ? 8 :
+ ( i >= 250 ) ? 12 : ( i >= 150 ) ? 18 : 27 );
+
+ for( i = 0; i < n; i++ )
+ {
+ /*
+ * pick a random A, 1 < A < |X| - 1
+ */
+ MPI_CHK( mpi_fill_random( &A, X->n, f_rng, p_rng ) );
+
+ if( mpi_cmp_mpi( &A, &W ) >= 0 )
+ {
+ j = mpi_msb( &A ) - mpi_msb( &W );
+ MPI_CHK( mpi_shift_r( &A, j + 1 ) );
+ }
+ A.p[0] |= 3;
+
+ /*
+ * A = A^R mod |X|
+ */
+ MPI_CHK( mpi_exp_mod( &A, &A, &R, X, &RR ) );
+
+ if( mpi_cmp_mpi( &A, &W ) == 0 ||
+ mpi_cmp_int( &A, 1 ) == 0 )
+ continue;
+
+ j = 1;
+ while( j < s && mpi_cmp_mpi( &A, &W ) != 0 )
+ {
+ /*
+ * A = A * A mod |X|
+ */
+ MPI_CHK( mpi_mul_mpi( &T, &A, &A ) );
+ MPI_CHK( mpi_mod_mpi( &A, &T, X ) );
+
+ if( mpi_cmp_int( &A, 1 ) == 0 )
+ break;
+
+ j++;
+ }
+
+ /*
+ * not prime if A != |X| - 1 or A == 1
+ */
+ if( mpi_cmp_mpi( &A, &W ) != 0 ||
+ mpi_cmp_int( &A, 1 ) == 0 )
+ {
+ ret = POLARSSL_ERR_MPI_NOT_ACCEPTABLE;
+ break;
+ }
+ }
+
+cleanup:
+
+ X->s = xs;
+
+ mpi_free( &W ); mpi_free( &R ); mpi_free( &T ); mpi_free( &A );
+ mpi_free( &RR );
+
+ return( ret );
+}
+
+/*
+ * Prime number generation
+ */
+int mpi_gen_prime( mpi *X, size_t nbits, int dh_flag,
+ int (*f_rng)(void *, unsigned char *, size_t),
+ void *p_rng )
+{
+ int ret;
+ size_t k, n;
+ mpi Y;
+
+ if( nbits < 3 || nbits > POLARSSL_MPI_MAX_BITS )
+ return( POLARSSL_ERR_MPI_BAD_INPUT_DATA );
+
+ mpi_init( &Y );
+
+ n = BITS_TO_LIMBS( nbits );
+
+ MPI_CHK( mpi_fill_random( X, n, f_rng, p_rng ) );
+
+ k = mpi_msb( X );
+ if( k < nbits ) MPI_CHK( mpi_shift_l( X, nbits - k ) );
+ if( k > nbits ) MPI_CHK( mpi_shift_r( X, k - nbits ) );
+
+ X->p[0] |= 3;
+
+ if( dh_flag == 0 )
+ {
+ while( ( ret = mpi_is_prime( X, f_rng, p_rng ) ) != 0 )
+ {
+ if( ret != POLARSSL_ERR_MPI_NOT_ACCEPTABLE )
+ goto cleanup;
+
+ MPI_CHK( mpi_add_int( X, X, 2 ) );
+ }
+ }
+ else
+ {
+ MPI_CHK( mpi_sub_int( &Y, X, 1 ) );
+ MPI_CHK( mpi_shift_r( &Y, 1 ) );
+
+ while( 1 )
+ {
+ if( ( ret = mpi_is_prime( X, f_rng, p_rng ) ) == 0 )
+ {
+ if( ( ret = mpi_is_prime( &Y, f_rng, p_rng ) ) == 0 )
+ break;
+
+ if( ret != POLARSSL_ERR_MPI_NOT_ACCEPTABLE )
+ goto cleanup;
+ }
+
+ if( ret != POLARSSL_ERR_MPI_NOT_ACCEPTABLE )
+ goto cleanup;
+
+ MPI_CHK( mpi_add_int( &Y, X, 1 ) );
+ MPI_CHK( mpi_add_int( X, X, 2 ) );
+ MPI_CHK( mpi_shift_r( &Y, 1 ) );
+ }
+ }
+
+cleanup:
+
+ mpi_free( &Y );
+
+ return( ret );
+}
+
+#endif
+
+#if defined(POLARSSL_SELF_TEST)
+
+#define GCD_PAIR_COUNT 3
+
+static const int gcd_pairs[GCD_PAIR_COUNT][3] =
+{
+ { 693, 609, 21 },
+ { 1764, 868, 28 },
+ { 768454923, 542167814, 1 }
+};
+
+/*
+ * Checkup routine
+ */
+int mpi_self_test( int verbose )
+{
+ int ret, i;
+ mpi A, E, N, X, Y, U, V;
+
+ mpi_init( &A ); mpi_init( &E ); mpi_init( &N ); mpi_init( &X );
+ mpi_init( &Y ); mpi_init( &U ); mpi_init( &V );
+
+ MPI_CHK( mpi_read_string( &A, 16,
+ "EFE021C2645FD1DC586E69184AF4A31E" \
+ "D5F53E93B5F123FA41680867BA110131" \
+ "944FE7952E2517337780CB0DB80E61AA" \
+ "E7C8DDC6C5C6AADEB34EB38A2F40D5E6" ) );
+
+ MPI_CHK( mpi_read_string( &E, 16,
+ "B2E7EFD37075B9F03FF989C7C5051C20" \
+ "34D2A323810251127E7BF8625A4F49A5" \
+ "F3E27F4DA8BD59C47D6DAABA4C8127BD" \
+ "5B5C25763222FEFCCFC38B832366C29E" ) );
+
+ MPI_CHK( mpi_read_string( &N, 16,
+ "0066A198186C18C10B2F5ED9B522752A" \
+ "9830B69916E535C8F047518A889A43A5" \
+ "94B6BED27A168D31D4A52F88925AA8F5" ) );
+
+ MPI_CHK( mpi_mul_mpi( &X, &A, &N ) );
+
+ MPI_CHK( mpi_read_string( &U, 16,
+ "602AB7ECA597A3D6B56FF9829A5E8B85" \
+ "9E857EA95A03512E2BAE7391688D264A" \
+ "A5663B0341DB9CCFD2C4C5F421FEC814" \
+ "8001B72E848A38CAE1C65F78E56ABDEF" \
+ "E12D3C039B8A02D6BE593F0BBBDA56F1" \
+ "ECF677152EF804370C1A305CAF3B5BF1" \
+ "30879B56C61DE584A0F53A2447A51E" ) );
+
+ if( verbose != 0 )
+ printf( " MPI test #1 (mul_mpi): " );
+
+ if( mpi_cmp_mpi( &X, &U ) != 0 )
+ {
+ if( verbose != 0 )
+ printf( "failed\n" );
+
+ return( 1 );
+ }
+
+ if( verbose != 0 )
+ printf( "passed\n" );
+
+ MPI_CHK( mpi_div_mpi( &X, &Y, &A, &N ) );
+
+ MPI_CHK( mpi_read_string( &U, 16,
+ "256567336059E52CAE22925474705F39A94" ) );
+
+ MPI_CHK( mpi_read_string( &V, 16,
+ "6613F26162223DF488E9CD48CC132C7A" \
+ "0AC93C701B001B092E4E5B9F73BCD27B" \
+ "9EE50D0657C77F374E903CDFA4C642" ) );
+
+ if( verbose != 0 )
+ printf( " MPI test #2 (div_mpi): " );
+
+ if( mpi_cmp_mpi( &X, &U ) != 0 ||
+ mpi_cmp_mpi( &Y, &V ) != 0 )
+ {
+ if( verbose != 0 )
+ printf( "failed\n" );
+
+ return( 1 );
+ }
+
+ if( verbose != 0 )
+ printf( "passed\n" );
+
+ MPI_CHK( mpi_exp_mod( &X, &A, &E, &N, NULL ) );
+
+ MPI_CHK( mpi_read_string( &U, 16,
+ "36E139AEA55215609D2816998ED020BB" \
+ "BD96C37890F65171D948E9BC7CBAA4D9" \
+ "325D24D6A3C12710F10A09FA08AB87" ) );
+
+ if( verbose != 0 )
+ printf( " MPI test #3 (exp_mod): " );
+
+ if( mpi_cmp_mpi( &X, &U ) != 0 )
+ {
+ if( verbose != 0 )
+ printf( "failed\n" );
+
+ return( 1 );
+ }
+
+ if( verbose != 0 )
+ printf( "passed\n" );
+
+#if defined(POLARSSL_GENPRIME)
+ MPI_CHK( mpi_inv_mod( &X, &A, &N ) );
+
+ MPI_CHK( mpi_read_string( &U, 16,
+ "003A0AAEDD7E784FC07D8F9EC6E3BFD5" \
+ "C3DBA76456363A10869622EAC2DD84EC" \
+ "C5B8A74DAC4D09E03B5E0BE779F2DF61" ) );
+
+ if( verbose != 0 )
+ printf( " MPI test #4 (inv_mod): " );
+
+ if( mpi_cmp_mpi( &X, &U ) != 0 )
+ {
+ if( verbose != 0 )
+ printf( "failed\n" );
+
+ return( 1 );
+ }
+
+ if( verbose != 0 )
+ printf( "passed\n" );
+#endif
+
+ if( verbose != 0 )
+ printf( " MPI test #5 (simple gcd): " );
+
+ for ( i = 0; i < GCD_PAIR_COUNT; i++)
+ {
+ MPI_CHK( mpi_lset( &X, gcd_pairs[i][0] ) );
+ MPI_CHK( mpi_lset( &Y, gcd_pairs[i][1] ) );
+
+ MPI_CHK( mpi_gcd( &A, &X, &Y ) );
+
+ if( mpi_cmp_int( &A, gcd_pairs[i][2] ) != 0 )
+ {
+ if( verbose != 0 )
+ printf( "failed at %d\n", i );
+
+ return( 1 );
+ }
+ }
+
+ if( verbose != 0 )
+ printf( "passed\n" );
+
+cleanup:
+
+ if( ret != 0 && verbose != 0 )
+ printf( "Unexpected error, return code = %08X\n", ret );
+
+ mpi_free( &A ); mpi_free( &E ); mpi_free( &N ); mpi_free( &X );
+ mpi_free( &Y ); mpi_free( &U ); mpi_free( &V );
+
+ if( verbose != 0 )
+ printf( "\n" );
+
+ return( ret );
+}
+
+#endif
+
+#endif
--- /dev/null
+/*
+ * Camellia implementation
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+/*
+ * The Camellia block cipher was designed by NTT and Mitsubishi Electric
+ * Corporation.
+ *
+ * http://info.isl.ntt.co.jp/crypt/eng/camellia/dl/01espec.pdf
+ */
+
+#include "polarssl/config.h"
+
+#if defined(POLARSSL_CAMELLIA_C)
+
+#include "polarssl/camellia.h"
+
+/*
+ * 32-bit integer manipulation macros (big endian)
+ */
+#ifndef GET_ULONG_BE
+#define GET_ULONG_BE(n,b,i) \
+{ \
+ (n) = ( (unsigned long) (b)[(i) ] << 24 ) \
+ | ( (unsigned long) (b)[(i) + 1] << 16 ) \
+ | ( (unsigned long) (b)[(i) + 2] << 8 ) \
+ | ( (unsigned long) (b)[(i) + 3] ); \
+}
+#endif
+
+#ifndef PUT_ULONG_BE
+#define PUT_ULONG_BE(n,b,i) \
+{ \
+ (b)[(i) ] = (unsigned char) ( (n) >> 24 ); \
+ (b)[(i) + 1] = (unsigned char) ( (n) >> 16 ); \
+ (b)[(i) + 2] = (unsigned char) ( (n) >> 8 ); \
+ (b)[(i) + 3] = (unsigned char) ( (n) ); \
+}
+#endif
+
+static const unsigned char SIGMA_CHARS[6][8] =
+{
+ { 0xa0, 0x9e, 0x66, 0x7f, 0x3b, 0xcc, 0x90, 0x8b },
+ { 0xb6, 0x7a, 0xe8, 0x58, 0x4c, 0xaa, 0x73, 0xb2 },
+ { 0xc6, 0xef, 0x37, 0x2f, 0xe9, 0x4f, 0x82, 0xbe },
+ { 0x54, 0xff, 0x53, 0xa5, 0xf1, 0xd3, 0x6f, 0x1c },
+ { 0x10, 0xe5, 0x27, 0xfa, 0xde, 0x68, 0x2d, 0x1d },
+ { 0xb0, 0x56, 0x88, 0xc2, 0xb3, 0xe6, 0xc1, 0xfd }
+};
+
+#if defined(POLARSSL_CAMELLIA_SMALL_MEMORY)
+
+static const unsigned char FSb[256] =
+{
+ 112,130, 44,236,179, 39,192,229,228,133, 87, 53,234, 12,174, 65,
+ 35,239,107,147, 69, 25,165, 33,237, 14, 79, 78, 29,101,146,189,
+ 134,184,175,143,124,235, 31,206, 62, 48,220, 95, 94,197, 11, 26,
+ 166,225, 57,202,213, 71, 93, 61,217, 1, 90,214, 81, 86,108, 77,
+ 139, 13,154,102,251,204,176, 45,116, 18, 43, 32,240,177,132,153,
+ 223, 76,203,194, 52,126,118, 5,109,183,169, 49,209, 23, 4,215,
+ 20, 88, 58, 97,222, 27, 17, 28, 50, 15,156, 22, 83, 24,242, 34,
+ 254, 68,207,178,195,181,122,145, 36, 8,232,168, 96,252,105, 80,
+ 170,208,160,125,161,137, 98,151, 84, 91, 30,149,224,255,100,210,
+ 16,196, 0, 72,163,247,117,219,138, 3,230,218, 9, 63,221,148,
+ 135, 92,131, 2,205, 74,144, 51,115,103,246,243,157,127,191,226,
+ 82,155,216, 38,200, 55,198, 59,129,150,111, 75, 19,190, 99, 46,
+ 233,121,167,140,159,110,188,142, 41,245,249,182, 47,253,180, 89,
+ 120,152, 6,106,231, 70,113,186,212, 37,171, 66,136,162,141,250,
+ 114, 7,185, 85,248,238,172, 10, 54, 73, 42,104, 60, 56,241,164,
+ 64, 40,211,123,187,201, 67,193, 21,227,173,244,119,199,128,158
+};
+
+#define SBOX1(n) FSb[(n)]
+#define SBOX2(n) (unsigned char)((FSb[(n)] >> 7 ^ FSb[(n)] << 1) & 0xff)
+#define SBOX3(n) (unsigned char)((FSb[(n)] >> 1 ^ FSb[(n)] << 7) & 0xff)
+#define SBOX4(n) FSb[((n) << 1 ^ (n) >> 7) &0xff]
+
+#else
+
+static const unsigned char FSb[256] =
+{
+ 112, 130, 44, 236, 179, 39, 192, 229, 228, 133, 87, 53, 234, 12, 174, 65,
+ 35, 239, 107, 147, 69, 25, 165, 33, 237, 14, 79, 78, 29, 101, 146, 189,
+ 134, 184, 175, 143, 124, 235, 31, 206, 62, 48, 220, 95, 94, 197, 11, 26,
+ 166, 225, 57, 202, 213, 71, 93, 61, 217, 1, 90, 214, 81, 86, 108, 77,
+ 139, 13, 154, 102, 251, 204, 176, 45, 116, 18, 43, 32, 240, 177, 132, 153,
+ 223, 76, 203, 194, 52, 126, 118, 5, 109, 183, 169, 49, 209, 23, 4, 215,
+ 20, 88, 58, 97, 222, 27, 17, 28, 50, 15, 156, 22, 83, 24, 242, 34,
+ 254, 68, 207, 178, 195, 181, 122, 145, 36, 8, 232, 168, 96, 252, 105, 80,
+ 170, 208, 160, 125, 161, 137, 98, 151, 84, 91, 30, 149, 224, 255, 100, 210,
+ 16, 196, 0, 72, 163, 247, 117, 219, 138, 3, 230, 218, 9, 63, 221, 148,
+ 135, 92, 131, 2, 205, 74, 144, 51, 115, 103, 246, 243, 157, 127, 191, 226,
+ 82, 155, 216, 38, 200, 55, 198, 59, 129, 150, 111, 75, 19, 190, 99, 46,
+ 233, 121, 167, 140, 159, 110, 188, 142, 41, 245, 249, 182, 47, 253, 180, 89,
+ 120, 152, 6, 106, 231, 70, 113, 186, 212, 37, 171, 66, 136, 162, 141, 250,
+ 114, 7, 185, 85, 248, 238, 172, 10, 54, 73, 42, 104, 60, 56, 241, 164,
+ 64, 40, 211, 123, 187, 201, 67, 193, 21, 227, 173, 244, 119, 199, 128, 158
+};
+
+static const unsigned char FSb2[256] =
+{
+ 224, 5, 88, 217, 103, 78, 129, 203, 201, 11, 174, 106, 213, 24, 93, 130,
+ 70, 223, 214, 39, 138, 50, 75, 66, 219, 28, 158, 156, 58, 202, 37, 123,
+ 13, 113, 95, 31, 248, 215, 62, 157, 124, 96, 185, 190, 188, 139, 22, 52,
+ 77, 195, 114, 149, 171, 142, 186, 122, 179, 2, 180, 173, 162, 172, 216, 154,
+ 23, 26, 53, 204, 247, 153, 97, 90, 232, 36, 86, 64, 225, 99, 9, 51,
+ 191, 152, 151, 133, 104, 252, 236, 10, 218, 111, 83, 98, 163, 46, 8, 175,
+ 40, 176, 116, 194, 189, 54, 34, 56, 100, 30, 57, 44, 166, 48, 229, 68,
+ 253, 136, 159, 101, 135, 107, 244, 35, 72, 16, 209, 81, 192, 249, 210, 160,
+ 85, 161, 65, 250, 67, 19, 196, 47, 168, 182, 60, 43, 193, 255, 200, 165,
+ 32, 137, 0, 144, 71, 239, 234, 183, 21, 6, 205, 181, 18, 126, 187, 41,
+ 15, 184, 7, 4, 155, 148, 33, 102, 230, 206, 237, 231, 59, 254, 127, 197,
+ 164, 55, 177, 76, 145, 110, 141, 118, 3, 45, 222, 150, 38, 125, 198, 92,
+ 211, 242, 79, 25, 63, 220, 121, 29, 82, 235, 243, 109, 94, 251, 105, 178,
+ 240, 49, 12, 212, 207, 140, 226, 117, 169, 74, 87, 132, 17, 69, 27, 245,
+ 228, 14, 115, 170, 241, 221, 89, 20, 108, 146, 84, 208, 120, 112, 227, 73,
+ 128, 80, 167, 246, 119, 147, 134, 131, 42, 199, 91, 233, 238, 143, 1, 61
+};
+
+static const unsigned char FSb3[256] =
+{
+ 56, 65, 22, 118, 217, 147, 96, 242, 114, 194, 171, 154, 117, 6, 87, 160,
+ 145, 247, 181, 201, 162, 140, 210, 144, 246, 7, 167, 39, 142, 178, 73, 222,
+ 67, 92, 215, 199, 62, 245, 143, 103, 31, 24, 110, 175, 47, 226, 133, 13,
+ 83, 240, 156, 101, 234, 163, 174, 158, 236, 128, 45, 107, 168, 43, 54, 166,
+ 197, 134, 77, 51, 253, 102, 88, 150, 58, 9, 149, 16, 120, 216, 66, 204,
+ 239, 38, 229, 97, 26, 63, 59, 130, 182, 219, 212, 152, 232, 139, 2, 235,
+ 10, 44, 29, 176, 111, 141, 136, 14, 25, 135, 78, 11, 169, 12, 121, 17,
+ 127, 34, 231, 89, 225, 218, 61, 200, 18, 4, 116, 84, 48, 126, 180, 40,
+ 85, 104, 80, 190, 208, 196, 49, 203, 42, 173, 15, 202, 112, 255, 50, 105,
+ 8, 98, 0, 36, 209, 251, 186, 237, 69, 129, 115, 109, 132, 159, 238, 74,
+ 195, 46, 193, 1, 230, 37, 72, 153, 185, 179, 123, 249, 206, 191, 223, 113,
+ 41, 205, 108, 19, 100, 155, 99, 157, 192, 75, 183, 165, 137, 95, 177, 23,
+ 244, 188, 211, 70, 207, 55, 94, 71, 148, 250, 252, 91, 151, 254, 90, 172,
+ 60, 76, 3, 53, 243, 35, 184, 93, 106, 146, 213, 33, 68, 81, 198, 125,
+ 57, 131, 220, 170, 124, 119, 86, 5, 27, 164, 21, 52, 30, 28, 248, 82,
+ 32, 20, 233, 189, 221, 228, 161, 224, 138, 241, 214, 122, 187, 227, 64, 79
+};
+
+static const unsigned char FSb4[256] =
+{
+ 112, 44, 179, 192, 228, 87, 234, 174, 35, 107, 69, 165, 237, 79, 29, 146,
+ 134, 175, 124, 31, 62, 220, 94, 11, 166, 57, 213, 93, 217, 90, 81, 108,
+ 139, 154, 251, 176, 116, 43, 240, 132, 223, 203, 52, 118, 109, 169, 209, 4,
+ 20, 58, 222, 17, 50, 156, 83, 242, 254, 207, 195, 122, 36, 232, 96, 105,
+ 170, 160, 161, 98, 84, 30, 224, 100, 16, 0, 163, 117, 138, 230, 9, 221,
+ 135, 131, 205, 144, 115, 246, 157, 191, 82, 216, 200, 198, 129, 111, 19, 99,
+ 233, 167, 159, 188, 41, 249, 47, 180, 120, 6, 231, 113, 212, 171, 136, 141,
+ 114, 185, 248, 172, 54, 42, 60, 241, 64, 211, 187, 67, 21, 173, 119, 128,
+ 130, 236, 39, 229, 133, 53, 12, 65, 239, 147, 25, 33, 14, 78, 101, 189,
+ 184, 143, 235, 206, 48, 95, 197, 26, 225, 202, 71, 61, 1, 214, 86, 77,
+ 13, 102, 204, 45, 18, 32, 177, 153, 76, 194, 126, 5, 183, 49, 23, 215,
+ 88, 97, 27, 28, 15, 22, 24, 34, 68, 178, 181, 145, 8, 168, 252, 80,
+ 208, 125, 137, 151, 91, 149, 255, 210, 196, 72, 247, 219, 3, 218, 63, 148,
+ 92, 2, 74, 51, 103, 243, 127, 226, 155, 38, 55, 59, 150, 75, 190, 46,
+ 121, 140, 110, 142, 245, 182, 253, 89, 152, 106, 70, 186, 37, 66, 162, 250,
+ 7, 85, 238, 10, 73, 104, 56, 164, 40, 123, 201, 193, 227, 244, 199, 158
+};
+
+#define SBOX1(n) FSb[(n)]
+#define SBOX2(n) FSb2[(n)]
+#define SBOX3(n) FSb3[(n)]
+#define SBOX4(n) FSb4[(n)]
+
+#endif
+
+static const unsigned char shifts[2][4][4] =
+{
+ {
+ { 1, 1, 1, 1 }, /* KL */
+ { 0, 0, 0, 0 }, /* KR */
+ { 1, 1, 1, 1 }, /* KA */
+ { 0, 0, 0, 0 } /* KB */
+ },
+ {
+ { 1, 0, 1, 1 }, /* KL */
+ { 1, 1, 0, 1 }, /* KR */
+ { 1, 1, 1, 0 }, /* KA */
+ { 1, 1, 0, 1 } /* KB */
+ }
+};
+
+static const signed char indexes[2][4][20] =
+{
+ {
+ { 0, 1, 2, 3, 8, 9, 10, 11, 38, 39,
+ 36, 37, 23, 20, 21, 22, 27, -1, -1, 26 }, /* KL -> RK */
+ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 }, /* KR -> RK */
+ { 4, 5, 6, 7, 12, 13, 14, 15, 16, 17,
+ 18, 19, -1, 24, 25, -1, 31, 28, 29, 30 }, /* KA -> RK */
+ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 } /* KB -> RK */
+ },
+ {
+ { 0, 1, 2, 3, 61, 62, 63, 60, -1, -1,
+ -1, -1, 27, 24, 25, 26, 35, 32, 33, 34 }, /* KL -> RK */
+ { -1, -1, -1, -1, 8, 9, 10, 11, 16, 17,
+ 18, 19, -1, -1, -1, -1, 39, 36, 37, 38 }, /* KR -> RK */
+ { -1, -1, -1, -1, 12, 13, 14, 15, 58, 59,
+ 56, 57, 31, 28, 29, 30, -1, -1, -1, -1 }, /* KA -> RK */
+ { 4, 5, 6, 7, 65, 66, 67, 64, 20, 21,
+ 22, 23, -1, -1, -1, -1, 43, 40, 41, 42 } /* KB -> RK */
+ }
+};
+
+static const signed char transposes[2][20] =
+{
+ {
+ 21, 22, 23, 20,
+ -1, -1, -1, -1,
+ 18, 19, 16, 17,
+ 11, 8, 9, 10,
+ 15, 12, 13, 14
+ },
+ {
+ 25, 26, 27, 24,
+ 29, 30, 31, 28,
+ 18, 19, 16, 17,
+ -1, -1, -1, -1,
+ -1, -1, -1, -1
+ }
+};
+
+/* Shift macro for 128 bit strings with rotation smaller than 32 bits (!) */
+#define ROTL(DEST, SRC, SHIFT) \
+{ \
+ (DEST)[0] = (SRC)[0] << (SHIFT) ^ (SRC)[1] >> (32 - (SHIFT)); \
+ (DEST)[1] = (SRC)[1] << (SHIFT) ^ (SRC)[2] >> (32 - (SHIFT)); \
+ (DEST)[2] = (SRC)[2] << (SHIFT) ^ (SRC)[3] >> (32 - (SHIFT)); \
+ (DEST)[3] = (SRC)[3] << (SHIFT) ^ (SRC)[0] >> (32 - (SHIFT)); \
+}
+
+#define FL(XL, XR, KL, KR) \
+{ \
+ (XR) = ((((XL) & (KL)) << 1) | (((XL) & (KL)) >> 31)) ^ (XR); \
+ (XL) = ((XR) | (KR)) ^ (XL); \
+}
+
+#define FLInv(YL, YR, KL, KR) \
+{ \
+ (YL) = ((YR) | (KR)) ^ (YL); \
+ (YR) = ((((YL) & (KL)) << 1) | (((YL) & (KL)) >> 31)) ^ (YR); \
+}
+
+#define SHIFT_AND_PLACE(INDEX, OFFSET) \
+{ \
+ TK[0] = KC[(OFFSET) * 4 + 0]; \
+ TK[1] = KC[(OFFSET) * 4 + 1]; \
+ TK[2] = KC[(OFFSET) * 4 + 2]; \
+ TK[3] = KC[(OFFSET) * 4 + 3]; \
+ \
+ for ( i = 1; i <= 4; i++ ) \
+ if (shifts[(INDEX)][(OFFSET)][i -1]) \
+ ROTL(TK + i * 4, TK, (15 * i) % 32); \
+ \
+ for ( i = 0; i < 20; i++ ) \
+ if (indexes[(INDEX)][(OFFSET)][i] != -1) { \
+ RK[indexes[(INDEX)][(OFFSET)][i]] = TK[ i ]; \
+ } \
+}
+
+static void camellia_feistel(const uint32_t x[2], const uint32_t k[2], uint32_t z[2])
+{
+ uint32_t I0, I1;
+ I0 = x[0] ^ k[0];
+ I1 = x[1] ^ k[1];
+
+ I0 = (SBOX1((I0 >> 24) & 0xFF) << 24) |
+ (SBOX2((I0 >> 16) & 0xFF) << 16) |
+ (SBOX3((I0 >> 8) & 0xFF) << 8) |
+ (SBOX4((I0 ) & 0xFF) );
+ I1 = (SBOX2((I1 >> 24) & 0xFF) << 24) |
+ (SBOX3((I1 >> 16) & 0xFF) << 16) |
+ (SBOX4((I1 >> 8) & 0xFF) << 8) |
+ (SBOX1((I1 ) & 0xFF) );
+
+ I0 ^= (I1 << 8) | (I1 >> 24);
+ I1 ^= (I0 << 16) | (I0 >> 16);
+ I0 ^= (I1 >> 8) | (I1 << 24);
+ I1 ^= (I0 >> 8) | (I0 << 24);
+
+ z[0] ^= I1;
+ z[1] ^= I0;
+}
+
+/*
+ * Camellia key schedule (encryption)
+ */
+int camellia_setkey_enc( camellia_context *ctx, const unsigned char *key, unsigned int keysize )
+{
+ int idx;
+ size_t i;
+ uint32_t *RK;
+ unsigned char t[64];
+ uint32_t SIGMA[6][2];
+ uint32_t KC[16];
+ uint32_t TK[20];
+
+ RK = ctx->rk;
+
+ memset(t, 0, 64);
+ memset(RK, 0, sizeof(ctx->rk));
+
+ switch( keysize )
+ {
+ case 128: ctx->nr = 3; idx = 0; break;
+ case 192:
+ case 256: ctx->nr = 4; idx = 1; break;
+ default : return( POLARSSL_ERR_CAMELLIA_INVALID_KEY_LENGTH );
+ }
+
+ for( i = 0; i < keysize / 8; ++i)
+ t[i] = key[i];
+
+ if (keysize == 192) {
+ for (i = 0; i < 8; i++)
+ t[24 + i] = ~t[16 + i];
+ }
+
+ /*
+ * Prepare SIGMA values
+ */
+ for (i = 0; i < 6; i++) {
+ GET_ULONG_BE(SIGMA[i][0], SIGMA_CHARS[i], 0);
+ GET_ULONG_BE(SIGMA[i][1], SIGMA_CHARS[i], 4);
+ }
+
+ /*
+ * Key storage in KC
+ * Order: KL, KR, KA, KB
+ */
+ memset(KC, 0, sizeof(KC));
+
+ /* Store KL, KR */
+ for (i = 0; i < 8; i++)
+ GET_ULONG_BE(KC[i], t, i * 4);
+
+ /* Generate KA */
+ for( i = 0; i < 4; ++i)
+ KC[8 + i] = KC[i] ^ KC[4 + i];
+
+ camellia_feistel(KC + 8, SIGMA[0], KC + 10);
+ camellia_feistel(KC + 10, SIGMA[1], KC + 8);
+
+ for( i = 0; i < 4; ++i)
+ KC[8 + i] ^= KC[i];
+
+ camellia_feistel(KC + 8, SIGMA[2], KC + 10);
+ camellia_feistel(KC + 10, SIGMA[3], KC + 8);
+
+ if (keysize > 128) {
+ /* Generate KB */
+ for( i = 0; i < 4; ++i)
+ KC[12 + i] = KC[4 + i] ^ KC[8 + i];
+
+ camellia_feistel(KC + 12, SIGMA[4], KC + 14);
+ camellia_feistel(KC + 14, SIGMA[5], KC + 12);
+ }
+
+ /*
+ * Generating subkeys
+ */
+
+ /* Manipulating KL */
+ SHIFT_AND_PLACE(idx, 0);
+
+ /* Manipulating KR */
+ if (keysize > 128) {
+ SHIFT_AND_PLACE(idx, 1);
+ }
+
+ /* Manipulating KA */
+ SHIFT_AND_PLACE(idx, 2);
+
+ /* Manipulating KB */
+ if (keysize > 128) {
+ SHIFT_AND_PLACE(idx, 3);
+ }
+
+ /* Do transpositions */
+ for ( i = 0; i < 20; i++ ) {
+ if (transposes[idx][i] != -1) {
+ RK[32 + 12 * idx + i] = RK[transposes[idx][i]];
+ }
+ }
+
+ return( 0 );
+}
+
+/*
+ * Camellia key schedule (decryption)
+ */
+int camellia_setkey_dec( camellia_context *ctx, const unsigned char *key, unsigned int keysize )
+{
+ int idx;
+ size_t i;
+ camellia_context cty;
+ uint32_t *RK;
+ uint32_t *SK;
+ int ret;
+
+ switch( keysize )
+ {
+ case 128: ctx->nr = 3; idx = 0; break;
+ case 192:
+ case 256: ctx->nr = 4; idx = 1; break;
+ default : return( POLARSSL_ERR_CAMELLIA_INVALID_KEY_LENGTH );
+ }
+
+ RK = ctx->rk;
+
+ ret = camellia_setkey_enc(&cty, key, keysize);
+ if( ret != 0 )
+ return( ret );
+
+ SK = cty.rk + 24 * 2 + 8 * idx * 2;
+
+ *RK++ = *SK++;
+ *RK++ = *SK++;
+ *RK++ = *SK++;
+ *RK++ = *SK++;
+
+ for (i = 22 + 8 * idx, SK -= 6; i > 0; i--, SK -= 4)
+ {
+ *RK++ = *SK++;
+ *RK++ = *SK++;
+ }
+
+ SK -= 2;
+
+ *RK++ = *SK++;
+ *RK++ = *SK++;
+ *RK++ = *SK++;
+ *RK++ = *SK++;
+
+ memset( &cty, 0, sizeof( camellia_context ) );
+
+ return( 0 );
+}
+
+/*
+ * Camellia-ECB block encryption/decryption
+ */
+int camellia_crypt_ecb( camellia_context *ctx,
+ int mode,
+ const unsigned char input[16],
+ unsigned char output[16] )
+{
+ int NR;
+ uint32_t *RK, X[4];
+
+ ( (void) mode );
+
+ NR = ctx->nr;
+ RK = ctx->rk;
+
+ GET_ULONG_BE( X[0], input, 0 );
+ GET_ULONG_BE( X[1], input, 4 );
+ GET_ULONG_BE( X[2], input, 8 );
+ GET_ULONG_BE( X[3], input, 12 );
+
+ X[0] ^= *RK++;
+ X[1] ^= *RK++;
+ X[2] ^= *RK++;
+ X[3] ^= *RK++;
+
+ while (NR) {
+ --NR;
+ camellia_feistel(X, RK, X + 2);
+ RK += 2;
+ camellia_feistel(X + 2, RK, X);
+ RK += 2;
+ camellia_feistel(X, RK, X + 2);
+ RK += 2;
+ camellia_feistel(X + 2, RK, X);
+ RK += 2;
+ camellia_feistel(X, RK, X + 2);
+ RK += 2;
+ camellia_feistel(X + 2, RK, X);
+ RK += 2;
+
+ if (NR) {
+ FL(X[0], X[1], RK[0], RK[1]);
+ RK += 2;
+ FLInv(X[2], X[3], RK[0], RK[1]);
+ RK += 2;
+ }
+ }
+
+ X[2] ^= *RK++;
+ X[3] ^= *RK++;
+ X[0] ^= *RK++;
+ X[1] ^= *RK++;
+
+ PUT_ULONG_BE( X[2], output, 0 );
+ PUT_ULONG_BE( X[3], output, 4 );
+ PUT_ULONG_BE( X[0], output, 8 );
+ PUT_ULONG_BE( X[1], output, 12 );
+
+ return( 0 );
+}
+
+/*
+ * Camellia-CBC buffer encryption/decryption
+ */
+int camellia_crypt_cbc( camellia_context *ctx,
+ int mode,
+ size_t length,
+ unsigned char iv[16],
+ const unsigned char *input,
+ unsigned char *output )
+{
+ int i;
+ unsigned char temp[16];
+
+ if( length % 16 )
+ return( POLARSSL_ERR_CAMELLIA_INVALID_INPUT_LENGTH );
+
+ if( mode == CAMELLIA_DECRYPT )
+ {
+ while( length > 0 )
+ {
+ memcpy( temp, input, 16 );
+ camellia_crypt_ecb( ctx, mode, input, output );
+
+ for( i = 0; i < 16; i++ )
+ output[i] = (unsigned char)( output[i] ^ iv[i] );
+
+ memcpy( iv, temp, 16 );
+
+ input += 16;
+ output += 16;
+ length -= 16;
+ }
+ }
+ else
+ {
+ while( length > 0 )
+ {
+ for( i = 0; i < 16; i++ )
+ output[i] = (unsigned char)( input[i] ^ iv[i] );
+
+ camellia_crypt_ecb( ctx, mode, output, output );
+ memcpy( iv, output, 16 );
+
+ input += 16;
+ output += 16;
+ length -= 16;
+ }
+ }
+
+ return( 0 );
+}
+
+#if defined(POLARSSL_CIPHER_MODE_CFB)
+/*
+ * Camellia-CFB128 buffer encryption/decryption
+ */
+int camellia_crypt_cfb128( camellia_context *ctx,
+ int mode,
+ size_t length,
+ size_t *iv_off,
+ unsigned char iv[16],
+ const unsigned char *input,
+ unsigned char *output )
+{
+ int c;
+ size_t n = *iv_off;
+
+ if( mode == CAMELLIA_DECRYPT )
+ {
+ while( length-- )
+ {
+ if( n == 0 )
+ camellia_crypt_ecb( ctx, CAMELLIA_ENCRYPT, iv, iv );
+
+ c = *input++;
+ *output++ = (unsigned char)( c ^ iv[n] );
+ iv[n] = (unsigned char) c;
+
+ n = (n + 1) & 0x0F;
+ }
+ }
+ else
+ {
+ while( length-- )
+ {
+ if( n == 0 )
+ camellia_crypt_ecb( ctx, CAMELLIA_ENCRYPT, iv, iv );
+
+ iv[n] = *output++ = (unsigned char)( iv[n] ^ *input++ );
+
+ n = (n + 1) & 0x0F;
+ }
+ }
+
+ *iv_off = n;
+
+ return( 0 );
+}
+#endif /* POLARSSL_CIPHER_MODE_CFB */
+
+#if defined(POLARSSL_CIPHER_MODE_CTR)
+/*
+ * Camellia-CTR buffer encryption/decryption
+ */
+int camellia_crypt_ctr( camellia_context *ctx,
+ size_t length,
+ size_t *nc_off,
+ unsigned char nonce_counter[16],
+ unsigned char stream_block[16],
+ const unsigned char *input,
+ unsigned char *output )
+{
+ int c, i, cb;
+ size_t n = *nc_off;
+
+ while( length-- )
+ {
+ if( n == 0 ) {
+ camellia_crypt_ecb( ctx, CAMELLIA_ENCRYPT, nonce_counter, stream_block );
+
+ i = 15;
+ do {
+ nonce_counter[i]++;
+ cb = nonce_counter[i] == 0;
+ } while( i-- && cb );
+
+ }
+ c = *input++;
+ *output++ = (unsigned char)( c ^ stream_block[n] );
+
+ n = (n + 1) & 0x0F;
+ }
+
+ *nc_off = n;
+
+ return( 0 );
+}
+#endif /* POLARSSL_CIPHER_MODE_CTR */
+
+#if defined(POLARSSL_SELF_TEST)
+
+#include <stdio.h>
+
+/*
+ * Camellia test vectors from:
+ *
+ * http://info.isl.ntt.co.jp/crypt/eng/camellia/technology.html:
+ * http://info.isl.ntt.co.jp/crypt/eng/camellia/dl/cryptrec/intermediate.txt
+ * http://info.isl.ntt.co.jp/crypt/eng/camellia/dl/cryptrec/t_camellia.txt
+ * (For each bitlength: Key 0, Nr 39)
+ */
+#define CAMELLIA_TESTS_ECB 2
+
+static const unsigned char camellia_test_ecb_key[3][CAMELLIA_TESTS_ECB][32] =
+{
+ {
+ { 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef,
+ 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10 },
+ { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }
+ },
+ {
+ { 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef,
+ 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10,
+ 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77 },
+ { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }
+ },
+ {
+ { 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef,
+ 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10,
+ 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77,
+ 0x88, 0x99, 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff },
+ { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }
+ },
+};
+
+static const unsigned char camellia_test_ecb_plain[CAMELLIA_TESTS_ECB][16] =
+{
+ { 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef,
+ 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10 },
+ { 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }
+};
+
+static const unsigned char camellia_test_ecb_cipher[3][CAMELLIA_TESTS_ECB][16] =
+{
+ {
+ { 0x67, 0x67, 0x31, 0x38, 0x54, 0x96, 0x69, 0x73,
+ 0x08, 0x57, 0x06, 0x56, 0x48, 0xea, 0xbe, 0x43 },
+ { 0x38, 0x3C, 0x6C, 0x2A, 0xAB, 0xEF, 0x7F, 0xDE,
+ 0x25, 0xCD, 0x47, 0x0B, 0xF7, 0x74, 0xA3, 0x31 }
+ },
+ {
+ { 0xb4, 0x99, 0x34, 0x01, 0xb3, 0xe9, 0x96, 0xf8,
+ 0x4e, 0xe5, 0xce, 0xe7, 0xd7, 0x9b, 0x09, 0xb9 },
+ { 0xD1, 0x76, 0x3F, 0xC0, 0x19, 0xD7, 0x7C, 0xC9,
+ 0x30, 0xBF, 0xF2, 0xA5, 0x6F, 0x7C, 0x93, 0x64 }
+ },
+ {
+ { 0x9a, 0xcc, 0x23, 0x7d, 0xff, 0x16, 0xd7, 0x6c,
+ 0x20, 0xef, 0x7c, 0x91, 0x9e, 0x3a, 0x75, 0x09 },
+ { 0x05, 0x03, 0xFB, 0x10, 0xAB, 0x24, 0x1E, 0x7C,
+ 0xF4, 0x5D, 0x8C, 0xDE, 0xEE, 0x47, 0x43, 0x35 }
+ }
+};
+
+#define CAMELLIA_TESTS_CBC 3
+
+static const unsigned char camellia_test_cbc_key[3][32] =
+{
+ { 0x2B, 0x7E, 0x15, 0x16, 0x28, 0xAE, 0xD2, 0xA6,
+ 0xAB, 0xF7, 0x15, 0x88, 0x09, 0xCF, 0x4F, 0x3C }
+ ,
+ { 0x8E, 0x73, 0xB0, 0xF7, 0xDA, 0x0E, 0x64, 0x52,
+ 0xC8, 0x10, 0xF3, 0x2B, 0x80, 0x90, 0x79, 0xE5,
+ 0x62, 0xF8, 0xEA, 0xD2, 0x52, 0x2C, 0x6B, 0x7B }
+ ,
+ { 0x60, 0x3D, 0xEB, 0x10, 0x15, 0xCA, 0x71, 0xBE,
+ 0x2B, 0x73, 0xAE, 0xF0, 0x85, 0x7D, 0x77, 0x81,
+ 0x1F, 0x35, 0x2C, 0x07, 0x3B, 0x61, 0x08, 0xD7,
+ 0x2D, 0x98, 0x10, 0xA3, 0x09, 0x14, 0xDF, 0xF4 }
+};
+
+static const unsigned char camellia_test_cbc_iv[16] =
+
+ { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+ 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F }
+;
+
+static const unsigned char camellia_test_cbc_plain[CAMELLIA_TESTS_CBC][16] =
+{
+ { 0x6B, 0xC1, 0xBE, 0xE2, 0x2E, 0x40, 0x9F, 0x96,
+ 0xE9, 0x3D, 0x7E, 0x11, 0x73, 0x93, 0x17, 0x2A },
+ { 0xAE, 0x2D, 0x8A, 0x57, 0x1E, 0x03, 0xAC, 0x9C,
+ 0x9E, 0xB7, 0x6F, 0xAC, 0x45, 0xAF, 0x8E, 0x51 },
+ { 0x30, 0xC8, 0x1C, 0x46, 0xA3, 0x5C, 0xE4, 0x11,
+ 0xE5, 0xFB, 0xC1, 0x19, 0x1A, 0x0A, 0x52, 0xEF }
+
+};
+
+static const unsigned char camellia_test_cbc_cipher[3][CAMELLIA_TESTS_CBC][16] =
+{
+ {
+ { 0x16, 0x07, 0xCF, 0x49, 0x4B, 0x36, 0xBB, 0xF0,
+ 0x0D, 0xAE, 0xB0, 0xB5, 0x03, 0xC8, 0x31, 0xAB },
+ { 0xA2, 0xF2, 0xCF, 0x67, 0x16, 0x29, 0xEF, 0x78,
+ 0x40, 0xC5, 0xA5, 0xDF, 0xB5, 0x07, 0x48, 0x87 },
+ { 0x0F, 0x06, 0x16, 0x50, 0x08, 0xCF, 0x8B, 0x8B,
+ 0x5A, 0x63, 0x58, 0x63, 0x62, 0x54, 0x3E, 0x54 }
+ },
+ {
+ { 0x2A, 0x48, 0x30, 0xAB, 0x5A, 0xC4, 0xA1, 0xA2,
+ 0x40, 0x59, 0x55, 0xFD, 0x21, 0x95, 0xCF, 0x93 },
+ { 0x5D, 0x5A, 0x86, 0x9B, 0xD1, 0x4C, 0xE5, 0x42,
+ 0x64, 0xF8, 0x92, 0xA6, 0xDD, 0x2E, 0xC3, 0xD5 },
+ { 0x37, 0xD3, 0x59, 0xC3, 0x34, 0x98, 0x36, 0xD8,
+ 0x84, 0xE3, 0x10, 0xAD, 0xDF, 0x68, 0xC4, 0x49 }
+ },
+ {
+ { 0xE6, 0xCF, 0xA3, 0x5F, 0xC0, 0x2B, 0x13, 0x4A,
+ 0x4D, 0x2C, 0x0B, 0x67, 0x37, 0xAC, 0x3E, 0xDA },
+ { 0x36, 0xCB, 0xEB, 0x73, 0xBD, 0x50, 0x4B, 0x40,
+ 0x70, 0xB1, 0xB7, 0xDE, 0x2B, 0x21, 0xEB, 0x50 },
+ { 0xE3, 0x1A, 0x60, 0x55, 0x29, 0x7D, 0x96, 0xCA,
+ 0x33, 0x30, 0xCD, 0xF1, 0xB1, 0x86, 0x0A, 0x83 }
+ }
+};
+
+#if defined(POLARSSL_CIPHER_MODE_CTR)
+/*
+ * Camellia-CTR test vectors from:
+ *
+ * http://www.faqs.org/rfcs/rfc5528.html
+ */
+
+static const unsigned char camellia_test_ctr_key[3][16] =
+{
+ { 0xAE, 0x68, 0x52, 0xF8, 0x12, 0x10, 0x67, 0xCC,
+ 0x4B, 0xF7, 0xA5, 0x76, 0x55, 0x77, 0xF3, 0x9E },
+ { 0x7E, 0x24, 0x06, 0x78, 0x17, 0xFA, 0xE0, 0xD7,
+ 0x43, 0xD6, 0xCE, 0x1F, 0x32, 0x53, 0x91, 0x63 },
+ { 0x76, 0x91, 0xBE, 0x03, 0x5E, 0x50, 0x20, 0xA8,
+ 0xAC, 0x6E, 0x61, 0x85, 0x29, 0xF9, 0xA0, 0xDC }
+};
+
+static const unsigned char camellia_test_ctr_nonce_counter[3][16] =
+{
+ { 0x00, 0x00, 0x00, 0x30, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 },
+ { 0x00, 0x6C, 0xB6, 0xDB, 0xC0, 0x54, 0x3B, 0x59,
+ 0xDA, 0x48, 0xD9, 0x0B, 0x00, 0x00, 0x00, 0x01 },
+ { 0x00, 0xE0, 0x01, 0x7B, 0x27, 0x77, 0x7F, 0x3F,
+ 0x4A, 0x17, 0x86, 0xF0, 0x00, 0x00, 0x00, 0x01 }
+};
+
+static const unsigned char camellia_test_ctr_pt[3][48] =
+{
+ { 0x53, 0x69, 0x6E, 0x67, 0x6C, 0x65, 0x20, 0x62,
+ 0x6C, 0x6F, 0x63, 0x6B, 0x20, 0x6D, 0x73, 0x67 },
+
+ { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+ 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
+ 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
+ 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F },
+
+ { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+ 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
+ 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
+ 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F,
+ 0x20, 0x21, 0x22, 0x23 }
+};
+
+static const unsigned char camellia_test_ctr_ct[3][48] =
+{
+ { 0xD0, 0x9D, 0xC2, 0x9A, 0x82, 0x14, 0x61, 0x9A,
+ 0x20, 0x87, 0x7C, 0x76, 0xDB, 0x1F, 0x0B, 0x3F },
+ { 0xDB, 0xF3, 0xC7, 0x8D, 0xC0, 0x83, 0x96, 0xD4,
+ 0xDA, 0x7C, 0x90, 0x77, 0x65, 0xBB, 0xCB, 0x44,
+ 0x2B, 0x8E, 0x8E, 0x0F, 0x31, 0xF0, 0xDC, 0xA7,
+ 0x2C, 0x74, 0x17, 0xE3, 0x53, 0x60, 0xE0, 0x48 },
+ { 0xB1, 0x9D, 0x1F, 0xCD, 0xCB, 0x75, 0xEB, 0x88,
+ 0x2F, 0x84, 0x9C, 0xE2, 0x4D, 0x85, 0xCF, 0x73,
+ 0x9C, 0xE6, 0x4B, 0x2B, 0x5C, 0x9D, 0x73, 0xF1,
+ 0x4F, 0x2D, 0x5D, 0x9D, 0xCE, 0x98, 0x89, 0xCD,
+ 0xDF, 0x50, 0x86, 0x96 }
+};
+
+static const int camellia_test_ctr_len[3] =
+ { 16, 32, 36 };
+#endif /* POLARSSL_CIPHER_MODE_CTR */
+
+/*
+ * Checkup routine
+ */
+int camellia_self_test( int verbose )
+{
+ int i, j, u, v;
+ unsigned char key[32];
+ unsigned char buf[64];
+ unsigned char src[16];
+ unsigned char dst[16];
+ unsigned char iv[16];
+#if defined(POLARSSL_CIPHER_MODE_CTR)
+ size_t offset, len;
+ unsigned char nonce_counter[16];
+ unsigned char stream_block[16];
+#endif
+
+ camellia_context ctx;
+
+ memset( key, 0, 32 );
+
+ for (j = 0; j < 6; j++) {
+ u = j >> 1;
+ v = j & 1;
+
+ if( verbose != 0 )
+ printf( " CAMELLIA-ECB-%3d (%s): ", 128 + u * 64,
+ (v == CAMELLIA_DECRYPT) ? "dec" : "enc");
+
+ for (i = 0; i < CAMELLIA_TESTS_ECB; i++ ) {
+ memcpy( key, camellia_test_ecb_key[u][i], 16 + 8 * u);
+
+ if (v == CAMELLIA_DECRYPT) {
+ camellia_setkey_dec(&ctx, key, 128 + u * 64);
+ memcpy(src, camellia_test_ecb_cipher[u][i], 16);
+ memcpy(dst, camellia_test_ecb_plain[i], 16);
+ } else { /* CAMELLIA_ENCRYPT */
+ camellia_setkey_enc(&ctx, key, 128 + u * 64);
+ memcpy(src, camellia_test_ecb_plain[i], 16);
+ memcpy(dst, camellia_test_ecb_cipher[u][i], 16);
+ }
+
+ camellia_crypt_ecb(&ctx, v, src, buf);
+
+ if( memcmp( buf, dst, 16 ) != 0 )
+ {
+ if( verbose != 0 )
+ printf( "failed\n" );
+
+ return( 1 );
+ }
+ }
+
+ if( verbose != 0 )
+ printf( "passed\n" );
+ }
+
+ if( verbose != 0 )
+ printf( "\n" );
+
+ /*
+ * CBC mode
+ */
+ for( j = 0; j < 6; j++ )
+ {
+ u = j >> 1;
+ v = j & 1;
+
+ if( verbose != 0 )
+ printf( " CAMELLIA-CBC-%3d (%s): ", 128 + u * 64,
+ ( v == CAMELLIA_DECRYPT ) ? "dec" : "enc" );
+
+ memcpy( src, camellia_test_cbc_iv, 16);
+ memcpy( dst, camellia_test_cbc_iv, 16);
+ memcpy( key, camellia_test_cbc_key[u], 16 + 8 * u);
+
+ if (v == CAMELLIA_DECRYPT) {
+ camellia_setkey_dec(&ctx, key, 128 + u * 64);
+ } else {
+ camellia_setkey_enc(&ctx, key, 128 + u * 64);
+ }
+
+ for (i = 0; i < CAMELLIA_TESTS_CBC; i++ ) {
+
+ if (v == CAMELLIA_DECRYPT) {
+ memcpy( iv , src, 16 );
+ memcpy(src, camellia_test_cbc_cipher[u][i], 16);
+ memcpy(dst, camellia_test_cbc_plain[i], 16);
+ } else { /* CAMELLIA_ENCRYPT */
+ memcpy( iv , dst, 16 );
+ memcpy(src, camellia_test_cbc_plain[i], 16);
+ memcpy(dst, camellia_test_cbc_cipher[u][i], 16);
+ }
+
+ camellia_crypt_cbc(&ctx, v, 16, iv, src, buf);
+
+ if( memcmp( buf, dst, 16 ) != 0 )
+ {
+ if( verbose != 0 )
+ printf( "failed\n" );
+
+ return( 1 );
+ }
+ }
+
+ if( verbose != 0 )
+ printf( "passed\n" );
+ }
+
+ if( verbose != 0 )
+ printf( "\n" );
+
+#if defined(POLARSSL_CIPHER_MODE_CTR)
+ /*
+ * CTR mode
+ */
+ for( i = 0; i < 6; i++ )
+ {
+ u = i >> 1;
+ v = i & 1;
+
+ if( verbose != 0 )
+ printf( " CAMELLIA-CTR-128 (%s): ",
+ ( v == CAMELLIA_DECRYPT ) ? "dec" : "enc" );
+
+ memcpy( nonce_counter, camellia_test_ctr_nonce_counter[u], 16 );
+ memcpy( key, camellia_test_ctr_key[u], 16 );
+
+ offset = 0;
+ camellia_setkey_enc( &ctx, key, 128 );
+
+ if( v == CAMELLIA_DECRYPT )
+ {
+ len = camellia_test_ctr_len[u];
+ memcpy( buf, camellia_test_ctr_ct[u], len );
+
+ camellia_crypt_ctr( &ctx, len, &offset, nonce_counter, stream_block, buf, buf );
+
+ if( memcmp( buf, camellia_test_ctr_pt[u], len ) != 0 )
+ {
+ if( verbose != 0 )
+ printf( "failed\n" );
+
+ return( 1 );
+ }
+ }
+ else
+ {
+ len = camellia_test_ctr_len[u];
+ memcpy( buf, camellia_test_ctr_pt[u], len );
+
+ camellia_crypt_ctr( &ctx, len, &offset, nonce_counter, stream_block, buf, buf );
+
+ if( memcmp( buf, camellia_test_ctr_ct[u], len ) != 0 )
+ {
+ if( verbose != 0 )
+ printf( "failed\n" );
+
+ return( 1 );
+ }
+ }
+
+ if( verbose != 0 )
+ printf( "passed\n" );
+ }
+
+ if( verbose != 0 )
+ printf( "\n" );
+#endif /* POLARSSL_CIPHER_MODE_CTR */
+
+ return ( 0 );
+}
+
+#endif
+
+#endif
--- /dev/null
+/*
+ * X.509 test certificates
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "polarssl/config.h"
+
+#if defined(POLARSSL_CERTS_C)
+
+const char test_ca_crt[] =
+"-----BEGIN CERTIFICATE-----\r\n"
+"MIIDhzCCAm+gAwIBAgIBADANBgkqhkiG9w0BAQUFADA7MQswCQYDVQQGEwJOTDER\r\n"
+"MA8GA1UEChMIUG9sYXJTU0wxGTAXBgNVBAMTEFBvbGFyU1NMIFRlc3QgQ0EwHhcN\r\n"
+"MTEwMjEyMTQ0NDAwWhcNMjEwMjEyMTQ0NDAwWjA7MQswCQYDVQQGEwJOTDERMA8G\r\n"
+"A1UEChMIUG9sYXJTU0wxGTAXBgNVBAMTEFBvbGFyU1NMIFRlc3QgQ0EwggEiMA0G\r\n"
+"CSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDA3zf8F7vglp0/ht6WMn1EpRagzSHx\r\n"
+"mdTs6st8GFgIlKXsm8WL3xoemTiZhx57wI053zhdcHgH057Zk+i5clHFzqMwUqny\r\n"
+"50BwFMtEonILwuVA+T7lpg6z+exKY8C4KQB0nFc7qKUEkHHxvYPZP9al4jwqj+8n\r\n"
+"YMPGn8u67GB9t+aEMr5P+1gmIgNb1LTV+/Xjli5wwOQuvfwu7uJBVcA0Ln0kcmnL\r\n"
+"R7EUQIN9Z/SG9jGr8XmksrUuEvmEF/Bibyc+E1ixVA0hmnM3oTDPb5Lc9un8rNsu\r\n"
+"KNF+AksjoBXyOGVkCeoMbo4bF6BxyLObyavpw/LPh5aPgAIynplYb6LVAgMBAAGj\r\n"
+"gZUwgZIwDAYDVR0TBAUwAwEB/zAdBgNVHQ4EFgQUtFrkpbPe0lL2udWmlQ/rPrzH\r\n"
+"/f8wYwYDVR0jBFwwWoAUtFrkpbPe0lL2udWmlQ/rPrzH/f+hP6Q9MDsxCzAJBgNV\r\n"
+"BAYTAk5MMREwDwYDVQQKEwhQb2xhclNTTDEZMBcGA1UEAxMQUG9sYXJTU0wgVGVz\r\n"
+"dCBDQYIBADANBgkqhkiG9w0BAQUFAAOCAQEAuP1U2ABUkIslsCfdlc2i94QHHYeJ\r\n"
+"SsR4EdgHtdciUI5I62J6Mom+Y0dT/7a+8S6MVMCZP6C5NyNyXw1GWY/YR82XTJ8H\r\n"
+"DBJiCTok5DbZ6SzaONBzdWHXwWwmi5vg1dxn7YxrM9d0IjxM27WNKs4sDQhZBQkF\r\n"
+"pjmfs2cb4oPl4Y9T9meTx/lvdkRYEug61Jfn6cA+qHpyPYdTH+UshITnmp5/Ztkf\r\n"
+"m/UTSLBNFNHesiTZeH31NcxYGdHSme9Nc/gfidRa0FLOCfWxRlFqAI47zG9jAQCZ\r\n"
+"7Z2mCGDNMhjQc+BYcdnl0lPXjdDK6V0qCg1dVewhUBcW5gZKzV7e9+DpVA==\r\n"
+"-----END CERTIFICATE-----\r\n";
+
+const char test_ca_key[] =
+"-----BEGIN RSA PRIVATE KEY-----\r\n"
+"Proc-Type: 4,ENCRYPTED\r\n"
+"DEK-Info: DES-EDE3-CBC,A8A95B05D5B7206B\r\n"
+"\r\n"
+"9Qd9GeArejl1GDVh2lLV1bHt0cPtfbh5h/5zVpAVaFpqtSPMrElp50Rntn9et+JA\r\n"
+"7VOyboR+Iy2t/HU4WvA687k3Bppe9GwKHjHhtl//8xFKwZr3Xb5yO5JUP8AUctQq\r\n"
+"Nb8CLlZyuUC+52REAAthdWgsX+7dJO4yabzUcQ22Tp9JSD0hiL43BlkWYUNK3dAo\r\n"
+"PZlmiptjnzVTjg1MxsBSydZinWOLBV8/JQgxSPo2yD4uEfig28qbvQ2wNIn0pnAb\r\n"
+"GxnSAOazkongEGfvcjIIs+LZN9gXFhxcOh6kc4Q/c99B7QWETwLLkYgZ+z1a9VY9\r\n"
+"gEU7CwCxYCD+h9hY6FPmsK0/lC4O7aeRKpYq00rPPxs6i7phiexg6ax6yTMmArQq\r\n"
+"QmK3TAsJm8V/J5AWpLEV6jAFgRGymGGHnof0DXzVWZidrcZJWTNuGEX90nB3ee2w\r\n"
+"PXJEFWKoD3K3aFcSLdHYr3mLGxP7H9ThQai9VsycxZKS5kwvBKQ//YMrmFfwPk8x\r\n"
+"vTeY4KZMaUrveEel5tWZC94RSMKgxR6cyE1nBXyTQnDOGbfpNNgBKxyKbINWoOJU\r\n"
+"WJZAwlsQn+QzCDwpri7+sV1mS3gBE6UY7aQmnmiiaC2V3Hbphxct/en5QsfDOt1X\r\n"
+"JczSfpRWLlbPznZg8OQh/VgCMA58N5DjOzTIK7sJJ5r+94ZBTCpgAMbF588f0NTR\r\n"
+"KCe4yrxGJR7X02M4nvD4IwOlpsQ8xQxZtOSgXv4LkxvdU9XJJKWZ/XNKJeWztxSe\r\n"
+"Z1vdTc2YfsDBA2SEv33vxHx2g1vqtw8SjDRT2RaQSS0QuSaMJimdOX6mTOCBKk1J\r\n"
+"9Q5mXTrER+/LnK0jEmXsBXWA5bqqVZIyahXSx4VYZ7l7w/PHiUDtDgyRhMMKi4n2\r\n"
+"iQvQcWSQTjrpnlJbca1/DkpRt3YwrvJwdqb8asZU2VrNETh5x0QVefDRLFiVpif/\r\n"
+"tUaeAe/P1F8OkS7OIZDs1SUbv/sD2vMbhNkUoCms3/PvNtdnvgL4F0zhaDpKCmlT\r\n"
+"P8vx49E7v5CyRNmED9zZg4o3wmMqrQO93PtTug3Eu9oVx1zPQM1NVMyBa2+f29DL\r\n"
+"1nuTCeXdo9+ni45xx+jAI4DCwrRdhJ9uzZyC6962H37H6D+5naNvClFR1s6li1Gb\r\n"
+"nqPoiy/OBsEx9CaDGcqQBp5Wme/3XW+6z1ISOx+igwNTVCT14mHdBMbya0eIKft5\r\n"
+"X+GnwtgEMyCYyyWuUct8g4RzErcY9+yW9Om5Hzpx4zOuW4NPZgPDTgK+t2RSL/Yq\r\n"
+"rE1njrgeGYcVeG3f+OftH4s6fPbq7t1A5ZgUscbLMBqr9tK+OqygR4EgKBPsH6Cz\r\n"
+"L6zlv/2RV0qAHvVuDJcIDIgwY5rJtINEm32rhOeFNJwZS5MNIC1czXZx5//ugX7l\r\n"
+"I4sy5nbVhwSjtAk8Xg5dZbdTZ6mIrb7xqH+fdakZor1khG7bC2uIwibD3cSl2XkR\r\n"
+"wN48lslbHnqqagr6Xm1nNOSVl8C/6kbJEsMpLhAezfRtGwvOucoaE+WbeUNolGde\r\n"
+"P/eQiddSf0brnpiLJRh7qZrl9XuqYdpUqnoEdMAfotDOID8OtV7gt8a48ad8VPW2\r\n"
+"-----END RSA PRIVATE KEY-----\r\n";
+
+const char test_ca_pwd[] = "PolarSSLTest";
+
+const char test_srv_crt[] =
+"-----BEGIN CERTIFICATE-----\r\n"
+"MIIDPzCCAiegAwIBAgIBATANBgkqhkiG9w0BAQUFADA7MQswCQYDVQQGEwJOTDER\r\n"
+"MA8GA1UEChMIUG9sYXJTU0wxGTAXBgNVBAMTEFBvbGFyU1NMIFRlc3QgQ0EwHhcN\r\n"
+"MTEwMjEyMTQ0NDA2WhcNMjEwMjEyMTQ0NDA2WjA8MQswCQYDVQQGEwJOTDERMA8G\r\n"
+"A1UEChMIUG9sYXJTU0wxGjAYBgNVBAMTEVBvbGFyU1NMIFNlcnZlciAxMIIBIjAN\r\n"
+"BgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAqQIfPUBq1VVTi/027oJlLhVhXom/\r\n"
+"uOhFkNvuiBZS0/FDUEeWEllkh2v9K+BG+XO+3c+S4ZFb7Wagb4kpeUWA0INq1UFD\r\n"
+"d185fAkER4KwVzlw7aPsFRkeqDMIR8EFQqn9TMO0390GH00QUUBncxMPQPhtgSVf\r\n"
+"CrFTxjB+FTms+Vruf5KepgVb5xOXhbUjktnUJAbVCSWJdQfdphqPPwkZvq1lLGTr\r\n"
+"lZvc/kFeF6babFtpzAK6FCwWJJxK3M3Q91Jnc/EtoCP9fvQxyi1wyokLBNsupk9w\r\n"
+"bp7OvViJ4lNZnm5akmXiiD8MlBmj3eXonZUT7Snbq3AS3FrKaxerUoJUsQIDAQAB\r\n"
+"o00wSzAJBgNVHRMEAjAAMB0GA1UdDgQWBBQfdNY/KcF0dEU7BRIsPai9Q1kCpjAf\r\n"
+"BgNVHSMEGDAWgBS0WuSls97SUva51aaVD+s+vMf9/zANBgkqhkiG9w0BAQUFAAOC\r\n"
+"AQEAvc+WwZUemsJu2IiI2Cp6liA+UAvIx98dQe3kZs2zAoF9VwQbXcYzWQ/BILkj\r\n"
+"NImKbPL9x0g2jIDn4ZvGYFywMwIO/d++YbwYiQw42/v7RiMy94zBPnzeHi86dy/0\r\n"
+"jpOOJUx3IXRsGLdyjb/1T11klcFqGnARiK+8VYolMPP6afKvLXX7K4kiUpsFQhUp\r\n"
+"E5VeM5pV1Mci2ETOJau2cO40FJvI/C9W/wR+GAArMaw2fxG77E3laaa0LAOlexM6\r\n"
+"A4KOb5f5cGTM5Ih6tEF5FVq3/9vzNIYMa1FqzacBLZF8zSHYLEimXBdzjBoN4qDU\r\n"
+"/WzRyYRBRjAI49mzHX6raleqnw==\r\n"
+"-----END CERTIFICATE-----\r\n";
+
+const char test_srv_key[] =
+"-----BEGIN RSA PRIVATE KEY-----\r\n"
+"MIIEogIBAAKCAQEAqQIfPUBq1VVTi/027oJlLhVhXom/uOhFkNvuiBZS0/FDUEeW\r\n"
+"Ellkh2v9K+BG+XO+3c+S4ZFb7Wagb4kpeUWA0INq1UFDd185fAkER4KwVzlw7aPs\r\n"
+"FRkeqDMIR8EFQqn9TMO0390GH00QUUBncxMPQPhtgSVfCrFTxjB+FTms+Vruf5Ke\r\n"
+"pgVb5xOXhbUjktnUJAbVCSWJdQfdphqPPwkZvq1lLGTrlZvc/kFeF6babFtpzAK6\r\n"
+"FCwWJJxK3M3Q91Jnc/EtoCP9fvQxyi1wyokLBNsupk9wbp7OvViJ4lNZnm5akmXi\r\n"
+"iD8MlBmj3eXonZUT7Snbq3AS3FrKaxerUoJUsQIDAQABAoIBABaJ9eiRQq4Ypv+w\r\n"
+"UTcVpLC0oTueWzcpor1i1zjG4Vzqe/Ok2FqyGToGKMlFK7Hwwa+LEyeJ3xyV5yd4\r\n"
+"v1Mw9bDZFdJC1eCBjoUAHtX6k9HOE0Vd6woVQ4Vi6OPI1g7B5Mnr/58rNrnN6TMs\r\n"
+"x58NF6euecwTU811QJrZtLbX7j2Cr28yB2Vs8qyYlHwVw5jbDOv43D7vU5gmlIDN\r\n"
+"0JQRuWAnOuPzZNoJr4SfJKqHNGxYYY6pHZ1s0dOTLIDb/B8KQWapA2kRmZyid2EH\r\n"
+"nwzgLbAsHJCf+bQnhXjXuxtUsrcIL8noZLazlOMxwNEammglVWW23Ud/QRnFgJg5\r\n"
+"UgcAcRECgYEA19uYetht5qmwdJ+12oC6zeO+vXLcyD9gon23T5J6w2YThld7/OW0\r\n"
+"oArQJGgkAdaq0pcTyOIjtTQVMFygdVmCEJmxh/3RutPcTeydqW9fphKDMej32J8e\r\n"
+"GniGmNGiclbcfNOS8E5TGp445yZb9P1+7AHng16bGg3Ykj5EA4G+HCcCgYEAyHAl\r\n"
+"//ekk8YjQElm+8izLtFkymIK0aCtEe9C/RIRhFYBeFaotC5dStNhBOncn4ovMAPD\r\n"
+"lX/92yDi9OP8PPLN3a4B9XpW3k/SS5GrbT5cwOivBHNllZSmu/2qz5WPGcjVCOrB\r\n"
+"LYl3YWr2h3EGKICT03kEoTkiDBvCeOpW7cCGl2cCgYBD5whoXHz1+ptPlI4YVjZt\r\n"
+"Xh86aU+ajpVPiEyJ84I6xXmO4SZXv8q6LaycR0ZMbcL+zBelMb4Z2nBv7jNrtuR7\r\n"
+"ZF28cdPv+YVr3esaybZE/73VjXup4SQPH6r3l7qKTVi+y6+FeJ4b2Xn8/MwgnT23\r\n"
+"8EFrye7wmzpthrjOgZnUMQKBgE9Lhsz/5J0Nis6Y+2Pqn3CLKEukg9Ewtqdct2y0\r\n"
+"5Dcta0F3TyCRIxlCDKTL/BslqMtfAdY4H268UO0+8IAQMn9boqzBrHIgs/pvc5kx\r\n"
+"TbKHmw2wtWR6vYersBKVgVpbCGSRssDYHGFu1n74qM4HJ/RGcR1zI9QUe1gopSFD\r\n"
+"xDtLAoGAVAdWvrqDwgoL2hHW3scGpxdE/ygJDOwHnf+1B9goKAOP5lf2FJaiAxf3\r\n"
+"ectoPOgZbCmm/iiDmigu703ld3O+VoCLDD4qx3R+KyALL78gtVJYzSRiKhzgCZ3g\r\n"
+"mKsIVRBq4IfwiwyMNG2BYZQAwbSDjjPtn/kPBduPzPj7eriByhI=\r\n"
+"-----END RSA PRIVATE KEY-----\r\n";
+
+const char test_cli_crt[] =
+"-----BEGIN CERTIFICATE-----\r\n"
+"MIIDPzCCAiegAwIBAgIBBDANBgkqhkiG9w0BAQUFADA7MQswCQYDVQQGEwJOTDER\r\n"
+"MA8GA1UEChMIUG9sYXJTU0wxGTAXBgNVBAMTEFBvbGFyU1NMIFRlc3QgQ0EwHhcN\r\n"
+"MTEwMjEyMTQ0NDA3WhcNMjEwMjEyMTQ0NDA3WjA8MQswCQYDVQQGEwJOTDERMA8G\r\n"
+"A1UEChMIUG9sYXJTU0wxGjAYBgNVBAMTEVBvbGFyU1NMIENsaWVudCAyMIIBIjAN\r\n"
+"BgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyHTEzLn5tXnpRdkUYLB9u5Pyax6f\r\n"
+"M60Nj4o8VmXl3ETZzGaFB9X4J7BKNdBjngpuG7fa8H6r7gwQk4ZJGDTzqCrSV/Uu\r\n"
+"1C93KYRhTYJQj6eVSHD1bk2y1RPD0hrt5kPqQhTrdOrA7R/UV06p86jt0uDBMHEw\r\n"
+"MjDV0/YI0FZPRo7yX/k9Z5GIMC5Cst99++UMd//sMcB4j7/Cf8qtbCHWjdmLao5v\r\n"
+"4Jv4EFbMs44TFeY0BGbH7vk2DmqV9gmaBmf0ZXH4yqSxJeD+PIs1BGe64E92hfx/\r\n"
+"/DZrtenNLQNiTrM9AM+vdqBpVoNq0qjU51Bx5rU2BXcFbXvI5MT9TNUhXwIDAQAB\r\n"
+"o00wSzAJBgNVHRMEAjAAMB0GA1UdDgQWBBRxoQBzckAvVHZeM/xSj7zx3WtGITAf\r\n"
+"BgNVHSMEGDAWgBS0WuSls97SUva51aaVD+s+vMf9/zANBgkqhkiG9w0BAQUFAAOC\r\n"
+"AQEAAn86isAM8X+mVwJqeItt6E9slhEQbAofyk+diH1Lh8Y9iLlWQSKbw/UXYjx5\r\n"
+"LLPZcniovxIcARC/BjyZR9g3UwTHNGNm+rwrqa15viuNOFBchykX/Orsk02EH7NR\r\n"
+"Alw5WLPorYjED6cdVQgBl9ot93HdJogRiXCxErM7NC8/eP511mjq+uLDjLKH8ZPQ\r\n"
+"8I4ekHJnroLsDkIwXKGIsvIBHQy2ac/NwHLCQOK6mfum1pRx52V4Utu5dLLjD5bM\r\n"
+"xOBC7KU4xZKuMXXZM6/93Yb51K/J4ahf1TxJlTWXtnzDr9saEYdNy2SKY/6ZiDNH\r\n"
+"D+stpAKiQLAWaAusIWKYEyw9MQ==\r\n"
+"-----END CERTIFICATE-----\r\n";
+
+const char test_cli_key[] =
+"-----BEGIN RSA PRIVATE KEY-----\r\n"
+"MIIEpAIBAAKCAQEAyHTEzLn5tXnpRdkUYLB9u5Pyax6fM60Nj4o8VmXl3ETZzGaF\r\n"
+"B9X4J7BKNdBjngpuG7fa8H6r7gwQk4ZJGDTzqCrSV/Uu1C93KYRhTYJQj6eVSHD1\r\n"
+"bk2y1RPD0hrt5kPqQhTrdOrA7R/UV06p86jt0uDBMHEwMjDV0/YI0FZPRo7yX/k9\r\n"
+"Z5GIMC5Cst99++UMd//sMcB4j7/Cf8qtbCHWjdmLao5v4Jv4EFbMs44TFeY0BGbH\r\n"
+"7vk2DmqV9gmaBmf0ZXH4yqSxJeD+PIs1BGe64E92hfx//DZrtenNLQNiTrM9AM+v\r\n"
+"dqBpVoNq0qjU51Bx5rU2BXcFbXvI5MT9TNUhXwIDAQABAoIBAGdNtfYDiap6bzst\r\n"
+"yhCiI8m9TtrhZw4MisaEaN/ll3XSjaOG2dvV6xMZCMV+5TeXDHOAZnY18Yi18vzz\r\n"
+"4Ut2TnNFzizCECYNaA2fST3WgInnxUkV3YXAyP6CNxJaCmv2aA0yFr2kFVSeaKGt\r\n"
+"ymvljNp2NVkvm7Th8fBQBO7I7AXhz43k0mR7XmPgewe8ApZOG3hstkOaMvbWAvWA\r\n"
+"zCZupdDjZYjOJqlA4eEA4H8/w7F83r5CugeBE8LgEREjLPiyejrU5H1fubEY+h0d\r\n"
+"l5HZBJ68ybTXfQ5U9o/QKA3dd0toBEhhdRUDGzWtjvwkEQfqF1reGWj/tod/gCpf\r\n"
+"DFi6X0ECgYEA4wOv/pjSC3ty6TuOvKX2rOUiBrLXXv2JSxZnMoMiWI5ipLQt+RYT\r\n"
+"VPafL/m7Dn6MbwjayOkcZhBwk5CNz5A6Q4lJ64Mq/lqHznRCQQ2Mc1G8eyDF/fYL\r\n"
+"Ze2pLvwP9VD5jTc2miDfw+MnvJhywRRLcemDFP8k4hQVtm8PMp3ZmNECgYEA4gz7\r\n"
+"wzObR4gn8ibe617uQPZjWzUj9dUHYd+in1gwBCIrtNnaRn9I9U/Q6tegRYpii4ys\r\n"
+"c176NmU+umy6XmuSKV5qD9bSpZWG2nLFnslrN15Lm3fhZxoeMNhBaEDTnLT26yoi\r\n"
+"33gp0mSSWy94ZEqipms+ULF6sY1ZtFW6tpGFoy8CgYAQHhnnvJflIs2ky4q10B60\r\n"
+"ZcxFp3rtDpkp0JxhFLhiizFrujMtZSjYNm5U7KkgPVHhLELEUvCmOnKTt4ap/vZ0\r\n"
+"BxJNe1GZH3pW6SAvGDQpl9sG7uu/vTFP+lCxukmzxB0DrrDcvorEkKMom7ZCCRvW\r\n"
+"KZsZ6YeH2Z81BauRj218kQKBgQCUV/DgKP2985xDTT79N08jUo3hTP5MVYCCuj/+\r\n"
+"UeEw1TvZcx3LJby7P6Xad6a1/BqveaGyFKIfEFIaBUBItk801sDDpDaYc4gL00Xc\r\n"
+"7lFuBHOZkxJYlss5QrGpuOEl9ZwUt5IrFLBdYaKqNHzNVC1pCPfb/JyH6Dr2HUxq\r\n"
+"gxUwAQKBgQCcU6G2L8AG9d9c0UpOyL1tMvFe5Ttw0KjlQVdsh1MP6yigYo9DYuwu\r\n"
+"bHFVW2r0dBTqegP2/KTOxKzaHfC1qf0RGDsUoJCNJrd1cwoCLG8P2EF4w3OBrKqv\r\n"
+"8u4ytY0F+Vlanj5lm3TaoHSVF1+NWPyOTiwevIECGKwSxvlki4fDAA==\r\n"
+"-----END RSA PRIVATE KEY-----\r\n";
+
+const char test_dhm_params[] =
+"-----BEGIN DH PARAMETERS-----\r\n"
+"MIGHAoGBAJ419DBEOgmQTzo5qXl5fQcN9TN455wkOL7052HzxxRVMyhYmwQcgJvh\r\n"
+"1sa18fyfR9OiVEMYglOpkqVoGLN7qd5aQNNi5W7/C+VBdHTBJcGZJyyP5B3qcz32\r\n"
+"9mLJKudlVudV0Qxk5qUJaPZ/xupz0NyoVpviuiBOI1gNi8ovSXWzAgEC\r\n"
+"-----END DH PARAMETERS-----\r\n";
+
+#endif
--- /dev/null
+/**
+ * \file cipher.c
+ *
+ * \brief Generic cipher wrapper for PolarSSL
+ *
+ * \author Adriaan de Jong <dejong@fox-it.com>
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "polarssl/config.h"
+
+#if defined(POLARSSL_CIPHER_C)
+
+#include "polarssl/cipher.h"
+#include "polarssl/cipher_wrap.h"
+
+#include <stdlib.h>
+
+#if defined _MSC_VER && !defined strcasecmp
+#define strcasecmp _stricmp
+#endif
+
+static const int supported_ciphers[] = {
+
+#if defined(POLARSSL_AES_C)
+ POLARSSL_CIPHER_AES_128_CBC,
+ POLARSSL_CIPHER_AES_192_CBC,
+ POLARSSL_CIPHER_AES_256_CBC,
+
+#if defined(POLARSSL_CIPHER_MODE_CFB)
+ POLARSSL_CIPHER_AES_128_CFB128,
+ POLARSSL_CIPHER_AES_192_CFB128,
+ POLARSSL_CIPHER_AES_256_CFB128,
+#endif /* defined(POLARSSL_CIPHER_MODE_CFB) */
+
+#if defined(POLARSSL_CIPHER_MODE_CTR)
+ POLARSSL_CIPHER_AES_128_CTR,
+ POLARSSL_CIPHER_AES_192_CTR,
+ POLARSSL_CIPHER_AES_256_CTR,
+#endif /* defined(POLARSSL_CIPHER_MODE_CTR) */
+
+#endif /* defined(POLARSSL_AES_C) */
+
+#if defined(POLARSSL_CAMELLIA_C)
+ POLARSSL_CIPHER_CAMELLIA_128_CBC,
+ POLARSSL_CIPHER_CAMELLIA_192_CBC,
+ POLARSSL_CIPHER_CAMELLIA_256_CBC,
+
+#if defined(POLARSSL_CIPHER_MODE_CFB)
+ POLARSSL_CIPHER_CAMELLIA_128_CFB128,
+ POLARSSL_CIPHER_CAMELLIA_192_CFB128,
+ POLARSSL_CIPHER_CAMELLIA_256_CFB128,
+#endif /* defined(POLARSSL_CIPHER_MODE_CFB) */
+
+#if defined(POLARSSL_CIPHER_MODE_CTR)
+ POLARSSL_CIPHER_CAMELLIA_128_CTR,
+ POLARSSL_CIPHER_CAMELLIA_192_CTR,
+ POLARSSL_CIPHER_CAMELLIA_256_CTR,
+#endif /* defined(POLARSSL_CIPHER_MODE_CTR) */
+
+#endif /* defined(POLARSSL_CAMELLIA_C) */
+
+#if defined(POLARSSL_DES_C)
+ POLARSSL_CIPHER_DES_CBC,
+ POLARSSL_CIPHER_DES_EDE_CBC,
+ POLARSSL_CIPHER_DES_EDE3_CBC,
+#endif /* defined(POLARSSL_DES_C) */
+
+ 0
+};
+
+const int *cipher_list( void )
+{
+ return supported_ciphers;
+}
+
+const cipher_info_t *cipher_info_from_type( const cipher_type_t cipher_type )
+{
+ /* Find static cipher information */
+ switch ( cipher_type )
+ {
+#if defined(POLARSSL_AES_C)
+ case POLARSSL_CIPHER_AES_128_CBC:
+ return &aes_128_cbc_info;
+ case POLARSSL_CIPHER_AES_192_CBC:
+ return &aes_192_cbc_info;
+ case POLARSSL_CIPHER_AES_256_CBC:
+ return &aes_256_cbc_info;
+
+#if defined(POLARSSL_CIPHER_MODE_CFB)
+ case POLARSSL_CIPHER_AES_128_CFB128:
+ return &aes_128_cfb128_info;
+ case POLARSSL_CIPHER_AES_192_CFB128:
+ return &aes_192_cfb128_info;
+ case POLARSSL_CIPHER_AES_256_CFB128:
+ return &aes_256_cfb128_info;
+#endif /* defined(POLARSSL_CIPHER_MODE_CFB) */
+
+#if defined(POLARSSL_CIPHER_MODE_CTR)
+ case POLARSSL_CIPHER_AES_128_CTR:
+ return &aes_128_ctr_info;
+ case POLARSSL_CIPHER_AES_192_CTR:
+ return &aes_192_ctr_info;
+ case POLARSSL_CIPHER_AES_256_CTR:
+ return &aes_256_ctr_info;
+#endif /* defined(POLARSSL_CIPHER_MODE_CTR) */
+
+#endif
+
+#if defined(POLARSSL_CAMELLIA_C)
+ case POLARSSL_CIPHER_CAMELLIA_128_CBC:
+ return &camellia_128_cbc_info;
+ case POLARSSL_CIPHER_CAMELLIA_192_CBC:
+ return &camellia_192_cbc_info;
+ case POLARSSL_CIPHER_CAMELLIA_256_CBC:
+ return &camellia_256_cbc_info;
+
+#if defined(POLARSSL_CIPHER_MODE_CFB)
+ case POLARSSL_CIPHER_CAMELLIA_128_CFB128:
+ return &camellia_128_cfb128_info;
+ case POLARSSL_CIPHER_CAMELLIA_192_CFB128:
+ return &camellia_192_cfb128_info;
+ case POLARSSL_CIPHER_CAMELLIA_256_CFB128:
+ return &camellia_256_cfb128_info;
+#endif /* defined(POLARSSL_CIPHER_MODE_CFB) */
+
+#if defined(POLARSSL_CIPHER_MODE_CTR)
+ case POLARSSL_CIPHER_CAMELLIA_128_CTR:
+ return &camellia_128_ctr_info;
+ case POLARSSL_CIPHER_CAMELLIA_192_CTR:
+ return &camellia_192_ctr_info;
+ case POLARSSL_CIPHER_CAMELLIA_256_CTR:
+ return &camellia_256_ctr_info;
+#endif /* defined(POLARSSL_CIPHER_MODE_CTR) */
+
+#endif
+
+#if defined(POLARSSL_DES_C)
+ case POLARSSL_CIPHER_DES_CBC:
+ return &des_cbc_info;
+ case POLARSSL_CIPHER_DES_EDE_CBC:
+ return &des_ede_cbc_info;
+ case POLARSSL_CIPHER_DES_EDE3_CBC:
+ return &des_ede3_cbc_info;
+#endif
+
+ default:
+ return NULL;
+ }
+}
+
+const cipher_info_t *cipher_info_from_string( const char *cipher_name )
+{
+ if( NULL == cipher_name )
+ return NULL;
+
+ /* Get the appropriate cipher information */
+#if defined(POLARSSL_CAMELLIA_C)
+ if( !strcasecmp( "CAMELLIA-128-CBC", cipher_name ) )
+ return cipher_info_from_type( POLARSSL_CIPHER_CAMELLIA_128_CBC );
+ if( !strcasecmp( "CAMELLIA-192-CBC", cipher_name ) )
+ return cipher_info_from_type( POLARSSL_CIPHER_CAMELLIA_192_CBC );
+ if( !strcasecmp( "CAMELLIA-256-CBC", cipher_name ) )
+ return cipher_info_from_type( POLARSSL_CIPHER_CAMELLIA_256_CBC );
+
+#if defined(POLARSSL_CIPHER_MODE_CFB)
+ if( !strcasecmp( "CAMELLIA-128-CFB128", cipher_name ) )
+ return cipher_info_from_type( POLARSSL_CIPHER_CAMELLIA_128_CFB128 );
+ if( !strcasecmp( "CAMELLIA-192-CFB128", cipher_name ) )
+ return cipher_info_from_type( POLARSSL_CIPHER_CAMELLIA_192_CFB128 );
+ if( !strcasecmp( "CAMELLIA-256-CFB128", cipher_name ) )
+ return cipher_info_from_type( POLARSSL_CIPHER_CAMELLIA_256_CFB128 );
+#endif /* defined(POLARSSL_CIPHER_MODE_CFB) */
+
+#if defined(POLARSSL_CIPHER_MODE_CTR)
+ if( !strcasecmp( "CAMELLIA-128-CTR", cipher_name ) )
+ return cipher_info_from_type( POLARSSL_CIPHER_CAMELLIA_128_CTR );
+ if( !strcasecmp( "CAMELLIA-192-CTR", cipher_name ) )
+ return cipher_info_from_type( POLARSSL_CIPHER_CAMELLIA_192_CTR );
+ if( !strcasecmp( "CAMELLIA-256-CTR", cipher_name ) )
+ return cipher_info_from_type( POLARSSL_CIPHER_CAMELLIA_256_CTR );
+#endif /* defined(POLARSSL_CIPHER_MODE_CTR) */
+#endif
+
+#if defined(POLARSSL_AES_C)
+ if( !strcasecmp( "AES-128-CBC", cipher_name ) )
+ return cipher_info_from_type( POLARSSL_CIPHER_AES_128_CBC );
+ if( !strcasecmp( "AES-192-CBC", cipher_name ) )
+ return cipher_info_from_type( POLARSSL_CIPHER_AES_192_CBC );
+ if( !strcasecmp( "AES-256-CBC", cipher_name ) )
+ return cipher_info_from_type( POLARSSL_CIPHER_AES_256_CBC );
+
+#if defined(POLARSSL_CIPHER_MODE_CFB)
+ if( !strcasecmp( "AES-128-CFB128", cipher_name ) )
+ return cipher_info_from_type( POLARSSL_CIPHER_AES_128_CFB128 );
+ if( !strcasecmp( "AES-192-CFB128", cipher_name ) )
+ return cipher_info_from_type( POLARSSL_CIPHER_AES_192_CFB128 );
+ if( !strcasecmp( "AES-256-CFB128", cipher_name ) )
+ return cipher_info_from_type( POLARSSL_CIPHER_AES_256_CFB128 );
+#endif /* defined(POLARSSL_CIPHER_MODE_CFB) */
+
+#if defined(POLARSSL_CIPHER_MODE_CTR)
+ if( !strcasecmp( "AES-128-CTR", cipher_name ) )
+ return cipher_info_from_type( POLARSSL_CIPHER_AES_128_CTR );
+ if( !strcasecmp( "AES-192-CTR", cipher_name ) )
+ return cipher_info_from_type( POLARSSL_CIPHER_AES_192_CTR );
+ if( !strcasecmp( "AES-256-CTR", cipher_name ) )
+ return cipher_info_from_type( POLARSSL_CIPHER_AES_256_CTR );
+#endif /* defined(POLARSSL_CIPHER_MODE_CTR) */
+#endif
+
+#if defined(POLARSSL_DES_C)
+ if( !strcasecmp( "DES-CBC", cipher_name ) )
+ return cipher_info_from_type( POLARSSL_CIPHER_DES_CBC );
+ if( !strcasecmp( "DES-EDE-CBC", cipher_name ) )
+ return cipher_info_from_type( POLARSSL_CIPHER_DES_EDE_CBC );
+ if( !strcasecmp( "DES-EDE3-CBC", cipher_name ) )
+ return cipher_info_from_type( POLARSSL_CIPHER_DES_EDE3_CBC );
+#endif
+ return NULL;
+}
+
+int cipher_init_ctx( cipher_context_t *ctx, const cipher_info_t *cipher_info )
+{
+ if( NULL == cipher_info || NULL == ctx )
+ return POLARSSL_ERR_CIPHER_BAD_INPUT_DATA;
+
+ memset( ctx, 0, sizeof( ctx ) );
+
+ if( NULL == ( ctx->cipher_ctx = cipher_info->base->ctx_alloc_func() ) )
+ return POLARSSL_ERR_CIPHER_ALLOC_FAILED;
+
+ ctx->cipher_info = cipher_info;
+
+ return 0;
+}
+
+int cipher_free_ctx( cipher_context_t *ctx )
+{
+ if( ctx == NULL || ctx->cipher_info == NULL )
+ return POLARSSL_ERR_CIPHER_BAD_INPUT_DATA;
+
+ ctx->cipher_info->base->ctx_free_func( ctx->cipher_ctx );
+
+ return 0;
+}
+
+int cipher_setkey( cipher_context_t *ctx, const unsigned char *key,
+ int key_length, const operation_t operation )
+{
+ if( NULL == ctx || NULL == ctx->cipher_info )
+ return POLARSSL_ERR_CIPHER_BAD_INPUT_DATA;
+
+ ctx->key_length = key_length;
+ ctx->operation = operation;
+
+ /*
+ * For CFB128 and CTR mode always use the encryption key schedule
+ */
+ if( POLARSSL_ENCRYPT == operation ||
+ POLARSSL_MODE_CFB128 == ctx->cipher_info->mode ||
+ POLARSSL_MODE_CTR == ctx->cipher_info->mode )
+ {
+ return ctx->cipher_info->base->setkey_enc_func( ctx->cipher_ctx, key,
+ ctx->key_length );
+ }
+
+ if( POLARSSL_DECRYPT == operation )
+ return ctx->cipher_info->base->setkey_dec_func( ctx->cipher_ctx, key,
+ ctx->key_length );
+
+ return POLARSSL_ERR_CIPHER_BAD_INPUT_DATA;
+}
+
+int cipher_reset( cipher_context_t *ctx, const unsigned char *iv )
+{
+ if( NULL == ctx || NULL == ctx->cipher_info || NULL == iv )
+ return POLARSSL_ERR_CIPHER_BAD_INPUT_DATA;
+
+ ctx->unprocessed_len = 0;
+
+ memcpy( ctx->iv, iv, cipher_get_iv_size( ctx ) );
+
+ return 0;
+}
+
+int cipher_update( cipher_context_t *ctx, const unsigned char *input, size_t ilen,
+ unsigned char *output, size_t *olen )
+{
+ int ret;
+ size_t copy_len = 0;
+
+ if( NULL == ctx || NULL == ctx->cipher_info || NULL == olen ||
+ input == output )
+ {
+ return POLARSSL_ERR_CIPHER_BAD_INPUT_DATA;
+ }
+
+ *olen = 0;
+
+ if( ctx->cipher_info->mode == POLARSSL_MODE_CBC )
+ {
+ /*
+ * If there is not enough data for a full block, cache it.
+ */
+ if( ( ctx->operation == POLARSSL_DECRYPT &&
+ ilen + ctx->unprocessed_len <= cipher_get_block_size( ctx ) ) ||
+ ( ctx->operation == POLARSSL_ENCRYPT &&
+ ilen + ctx->unprocessed_len < cipher_get_block_size( ctx ) ) )
+ {
+ memcpy( &( ctx->unprocessed_data[ctx->unprocessed_len] ), input,
+ ilen );
+
+ ctx->unprocessed_len += ilen;
+ return 0;
+ }
+
+ /*
+ * Process cached data first
+ */
+ if( ctx->unprocessed_len != 0 )
+ {
+ copy_len = cipher_get_block_size( ctx ) - ctx->unprocessed_len;
+
+ memcpy( &( ctx->unprocessed_data[ctx->unprocessed_len] ), input,
+ copy_len );
+
+ if( 0 != ( ret = ctx->cipher_info->base->cbc_func( ctx->cipher_ctx,
+ ctx->operation, cipher_get_block_size( ctx ), ctx->iv,
+ ctx->unprocessed_data, output ) ) )
+ {
+ return ret;
+ }
+
+ *olen += cipher_get_block_size( ctx );
+ output += cipher_get_block_size( ctx );
+ ctx->unprocessed_len = 0;
+
+ input += copy_len;
+ ilen -= copy_len;
+ }
+
+ /*
+ * Cache final, incomplete block
+ */
+ if( 0 != ilen )
+ {
+ copy_len = ilen % cipher_get_block_size( ctx );
+ if( copy_len == 0 && ctx->operation == POLARSSL_DECRYPT )
+ copy_len = cipher_get_block_size(ctx);
+
+ memcpy( ctx->unprocessed_data, &( input[ilen - copy_len] ),
+ copy_len );
+
+ ctx->unprocessed_len += copy_len;
+ ilen -= copy_len;
+ }
+
+ /*
+ * Process remaining full blocks
+ */
+ if( ilen )
+ {
+ if( 0 != ( ret = ctx->cipher_info->base->cbc_func( ctx->cipher_ctx,
+ ctx->operation, ilen, ctx->iv, input, output ) ) )
+ {
+ return ret;
+ }
+ *olen += ilen;
+ }
+
+ return 0;
+ }
+
+ if( ctx->cipher_info->mode == POLARSSL_MODE_CFB128 )
+ {
+ if( 0 != ( ret = ctx->cipher_info->base->cfb128_func( ctx->cipher_ctx,
+ ctx->operation, ilen, &ctx->unprocessed_len, ctx->iv,
+ input, output ) ) )
+ {
+ return ret;
+ }
+
+ *olen = ilen;
+
+ return 0;
+ }
+
+ if( ctx->cipher_info->mode == POLARSSL_MODE_CTR )
+ {
+ if( 0 != ( ret = ctx->cipher_info->base->ctr_func( ctx->cipher_ctx,
+ ilen, &ctx->unprocessed_len, ctx->iv,
+ ctx->unprocessed_data, input, output ) ) )
+ {
+ return ret;
+ }
+
+ *olen = ilen;
+
+ return 0;
+ }
+
+ return POLARSSL_ERR_CIPHER_FEATURE_UNAVAILABLE;
+}
+
+static void add_pkcs_padding( unsigned char *output, size_t output_len,
+ size_t data_len )
+{
+ size_t padding_len = output_len - data_len;
+ unsigned char i = 0;
+
+ for( i = 0; i < padding_len; i++ )
+ output[data_len + i] = (unsigned char) padding_len;
+}
+
+static int get_pkcs_padding( unsigned char *input, unsigned int input_len,
+ size_t *data_len)
+{
+ unsigned int i, padding_len = 0;
+
+ if( NULL == input || NULL == data_len )
+ return POLARSSL_ERR_CIPHER_BAD_INPUT_DATA;
+
+ padding_len = input[input_len - 1];
+
+ if( padding_len > input_len )
+ return POLARSSL_ERR_CIPHER_INVALID_PADDING;
+
+ for( i = input_len - padding_len; i < input_len; i++ )
+ if( input[i] != padding_len )
+ return POLARSSL_ERR_CIPHER_INVALID_PADDING;
+
+ *data_len = input_len - padding_len;
+
+ return 0;
+}
+
+int cipher_finish( cipher_context_t *ctx, unsigned char *output, size_t *olen)
+{
+ int ret = 0;
+
+ if( NULL == ctx || NULL == ctx->cipher_info || NULL == olen )
+ return POLARSSL_ERR_CIPHER_BAD_INPUT_DATA;
+
+ *olen = 0;
+
+ if( POLARSSL_MODE_CFB128 == ctx->cipher_info->mode ||
+ POLARSSL_MODE_CTR == ctx->cipher_info->mode )
+ {
+ return 0;
+ }
+
+ if( POLARSSL_MODE_CBC == ctx->cipher_info->mode )
+ {
+ if( POLARSSL_ENCRYPT == ctx->operation )
+ {
+ add_pkcs_padding( ctx->unprocessed_data, cipher_get_iv_size( ctx ),
+ ctx->unprocessed_len );
+ }
+ else if ( cipher_get_block_size( ctx ) != ctx->unprocessed_len )
+ {
+ /* For decrypt operations, expect a full block */
+ return POLARSSL_ERR_CIPHER_FULL_BLOCK_EXPECTED;
+ }
+
+ /* cipher block */
+ if( 0 != ( ret = ctx->cipher_info->base->cbc_func( ctx->cipher_ctx,
+ ctx->operation, cipher_get_block_size( ctx ), ctx->iv,
+ ctx->unprocessed_data, output ) ) )
+ {
+ return ret;
+ }
+
+ /* Set output size for decryption */
+ if( POLARSSL_DECRYPT == ctx->operation )
+ return get_pkcs_padding( output, cipher_get_block_size( ctx ), olen );
+
+ /* Set output size for encryption */
+ *olen = cipher_get_block_size( ctx );
+ return 0;
+ }
+
+ return POLARSSL_ERR_CIPHER_FEATURE_UNAVAILABLE;
+}
+
+#if defined(POLARSSL_SELF_TEST)
+
+#include <stdio.h>
+
+#define ASSERT(x) if (!(x)) { \
+ printf( "failed with %i at %s\n", value, (#x) ); \
+ return( 1 ); \
+}
+/*
+ * Checkup routine
+ */
+
+int cipher_self_test( int verbose )
+{
+ ((void) verbose);
+
+ return( 0 );
+}
+
+#endif
+
+#endif
--- /dev/null
+/**
+ * \file md_wrap.c
+ *
+ * \brief Generic cipher wrapper for PolarSSL
+ *
+ * \author Adriaan de Jong <dejong@fox-it.com>
+ *
+ * Copyright (C) 2006-2011, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "polarssl/config.h"
+
+#if defined(POLARSSL_CIPHER_C)
+
+#include "polarssl/cipher_wrap.h"
+#include "polarssl/aes.h"
+#include "polarssl/camellia.h"
+#include "polarssl/des.h"
+
+#include <stdlib.h>
+
+#if defined(POLARSSL_AES_C)
+
+int aes_crypt_cbc_wrap( void *ctx, operation_t operation, size_t length,
+ unsigned char *iv, const unsigned char *input, unsigned char *output )
+{
+ return aes_crypt_cbc( (aes_context *) ctx, operation, length, iv, input, output );
+}
+
+int aes_crypt_cfb128_wrap( void *ctx, operation_t operation, size_t length,
+ size_t *iv_off, unsigned char *iv, const unsigned char *input, unsigned char *output )
+{
+#if defined(POLARSSL_CIPHER_MODE_CFB)
+ return aes_crypt_cfb128( (aes_context *) ctx, operation, length, iv_off, iv, input, output );
+#else
+ ((void) ctx);
+ ((void) operation);
+ ((void) length);
+ ((void) iv_off);
+ ((void) iv);
+ ((void) input);
+ ((void) output);
+
+ return POLARSSL_ERR_CIPHER_FEATURE_UNAVAILABLE;
+#endif
+}
+
+int aes_crypt_ctr_wrap( void *ctx, size_t length,
+ size_t *nc_off, unsigned char *nonce_counter, unsigned char *stream_block,
+ const unsigned char *input, unsigned char *output )
+{
+#if defined(POLARSSL_CIPHER_MODE_CTR)
+ return aes_crypt_ctr( (aes_context *) ctx, length, nc_off, nonce_counter,
+ stream_block, input, output );
+#else
+ ((void) ctx);
+ ((void) length);
+ ((void) nc_off);
+ ((void) nonce_counter);
+ ((void) stream_block);
+ ((void) input);
+ ((void) output);
+
+ return POLARSSL_ERR_CIPHER_FEATURE_UNAVAILABLE;
+#endif
+}
+
+int aes_setkey_dec_wrap( void *ctx, const unsigned char *key, unsigned int key_length )
+{
+ return aes_setkey_dec( (aes_context *) ctx, key, key_length );
+}
+
+int aes_setkey_enc_wrap( void *ctx, const unsigned char *key, unsigned int key_length )
+{
+ return aes_setkey_enc( (aes_context *) ctx, key, key_length );
+}
+
+static void * aes_ctx_alloc( void )
+{
+ return malloc( sizeof( aes_context ) );
+}
+
+static void aes_ctx_free( void *ctx )
+{
+ free( ctx );
+}
+
+const cipher_base_t aes_info = {
+ POLARSSL_CIPHER_ID_AES,
+ aes_crypt_cbc_wrap,
+ aes_crypt_cfb128_wrap,
+ aes_crypt_ctr_wrap,
+ aes_setkey_enc_wrap,
+ aes_setkey_dec_wrap,
+ aes_ctx_alloc,
+ aes_ctx_free
+};
+
+const cipher_info_t aes_128_cbc_info = {
+ POLARSSL_CIPHER_AES_128_CBC,
+ POLARSSL_MODE_CBC,
+ 128,
+ "AES-128-CBC",
+ 16,
+ 16,
+ &aes_info
+};
+
+const cipher_info_t aes_192_cbc_info = {
+ POLARSSL_CIPHER_AES_192_CBC,
+ POLARSSL_MODE_CBC,
+ 192,
+ "AES-192-CBC",
+ 16,
+ 16,
+ &aes_info
+};
+
+const cipher_info_t aes_256_cbc_info = {
+ POLARSSL_CIPHER_AES_256_CBC,
+ POLARSSL_MODE_CBC,
+ 256,
+ "AES-256-CBC",
+ 16,
+ 16,
+ &aes_info
+};
+
+#if defined(POLARSSL_CIPHER_MODE_CFB)
+const cipher_info_t aes_128_cfb128_info = {
+ POLARSSL_CIPHER_AES_128_CFB128,
+ POLARSSL_MODE_CFB128,
+ 128,
+ "AES-128-CFB128",
+ 16,
+ 16,
+ &aes_info
+};
+
+const cipher_info_t aes_192_cfb128_info = {
+ POLARSSL_CIPHER_AES_192_CFB128,
+ POLARSSL_MODE_CFB128,
+ 192,
+ "AES-192-CFB128",
+ 16,
+ 16,
+ &aes_info
+};
+
+const cipher_info_t aes_256_cfb128_info = {
+ POLARSSL_CIPHER_AES_256_CFB128,
+ POLARSSL_MODE_CFB128,
+ 256,
+ "AES-256-CFB128",
+ 16,
+ 16,
+ &aes_info
+};
+#endif /* POLARSSL_CIPHER_MODE_CFB */
+
+#if defined(POLARSSL_CIPHER_MODE_CTR)
+const cipher_info_t aes_128_ctr_info = {
+ POLARSSL_CIPHER_AES_128_CTR,
+ POLARSSL_MODE_CTR,
+ 128,
+ "AES-128-CTR",
+ 16,
+ 16,
+ &aes_info
+};
+
+const cipher_info_t aes_192_ctr_info = {
+ POLARSSL_CIPHER_AES_192_CTR,
+ POLARSSL_MODE_CTR,
+ 192,
+ "AES-192-CTR",
+ 16,
+ 16,
+ &aes_info
+};
+
+const cipher_info_t aes_256_ctr_info = {
+ POLARSSL_CIPHER_AES_256_CTR,
+ POLARSSL_MODE_CTR,
+ 256,
+ "AES-256-CTR",
+ 16,
+ 16,
+ &aes_info
+};
+#endif /* POLARSSL_CIPHER_MODE_CTR */
+
+#endif
+
+#if defined(POLARSSL_CAMELLIA_C)
+
+int camellia_crypt_cbc_wrap( void *ctx, operation_t operation, size_t length,
+ unsigned char *iv, const unsigned char *input, unsigned char *output )
+{
+ return camellia_crypt_cbc( (camellia_context *) ctx, operation, length, iv, input, output );
+}
+
+int camellia_crypt_cfb128_wrap( void *ctx, operation_t operation, size_t length,
+ size_t *iv_off, unsigned char *iv, const unsigned char *input, unsigned char *output )
+{
+#if defined(POLARSSL_CIPHER_MODE_CFB)
+ return camellia_crypt_cfb128( (camellia_context *) ctx, operation, length, iv_off, iv, input, output );
+#else
+ ((void) ctx);
+ ((void) operation);
+ ((void) length);
+ ((void) iv_off);
+ ((void) iv);
+ ((void) input);
+ ((void) output);
+
+ return POLARSSL_ERR_CIPHER_FEATURE_UNAVAILABLE;
+#endif
+}
+
+int camellia_crypt_ctr_wrap( void *ctx, size_t length,
+ size_t *nc_off, unsigned char *nonce_counter, unsigned char *stream_block,
+ const unsigned char *input, unsigned char *output )
+{
+#if defined(POLARSSL_CIPHER_MODE_CTR)
+ return camellia_crypt_ctr( (camellia_context *) ctx, length, nc_off, nonce_counter,
+ stream_block, input, output );
+#else
+ ((void) ctx);
+ ((void) length);
+ ((void) nc_off);
+ ((void) nonce_counter);
+ ((void) stream_block);
+ ((void) input);
+ ((void) output);
+
+ return POLARSSL_ERR_CIPHER_FEATURE_UNAVAILABLE;
+#endif
+}
+
+int camellia_setkey_dec_wrap( void *ctx, const unsigned char *key, unsigned int key_length )
+{
+ return camellia_setkey_dec( (camellia_context *) ctx, key, key_length );
+}
+
+int camellia_setkey_enc_wrap( void *ctx, const unsigned char *key, unsigned int key_length )
+{
+ return camellia_setkey_enc( (camellia_context *) ctx, key, key_length );
+}
+
+static void * camellia_ctx_alloc( void )
+{
+ return malloc( sizeof( camellia_context ) );
+}
+
+static void camellia_ctx_free( void *ctx )
+{
+ free( ctx );
+}
+
+const cipher_base_t camellia_info = {
+ POLARSSL_CIPHER_ID_CAMELLIA,
+ camellia_crypt_cbc_wrap,
+ camellia_crypt_cfb128_wrap,
+ camellia_crypt_ctr_wrap,
+ camellia_setkey_enc_wrap,
+ camellia_setkey_dec_wrap,
+ camellia_ctx_alloc,
+ camellia_ctx_free
+};
+
+const cipher_info_t camellia_128_cbc_info = {
+ POLARSSL_CIPHER_CAMELLIA_128_CBC,
+ POLARSSL_MODE_CBC,
+ 128,
+ "CAMELLIA-128-CBC",
+ 16,
+ 16,
+ &camellia_info
+};
+
+const cipher_info_t camellia_192_cbc_info = {
+ POLARSSL_CIPHER_CAMELLIA_192_CBC,
+ POLARSSL_MODE_CBC,
+ 192,
+ "CAMELLIA-192-CBC",
+ 16,
+ 16,
+ &camellia_info
+};
+
+const cipher_info_t camellia_256_cbc_info = {
+ POLARSSL_CIPHER_CAMELLIA_256_CBC,
+ POLARSSL_MODE_CBC,
+ 256,
+ "CAMELLIA-256-CBC",
+ 16,
+ 16,
+ &camellia_info
+};
+
+#if defined(POLARSSL_CIPHER_MODE_CFB)
+const cipher_info_t camellia_128_cfb128_info = {
+ POLARSSL_CIPHER_CAMELLIA_128_CFB128,
+ POLARSSL_MODE_CFB128,
+ 128,
+ "CAMELLIA-128-CFB128",
+ 16,
+ 16,
+ &camellia_info
+};
+
+const cipher_info_t camellia_192_cfb128_info = {
+ POLARSSL_CIPHER_CAMELLIA_192_CFB128,
+ POLARSSL_MODE_CFB128,
+ 192,
+ "CAMELLIA-192-CFB128",
+ 16,
+ 16,
+ &camellia_info
+};
+
+const cipher_info_t camellia_256_cfb128_info = {
+ POLARSSL_CIPHER_CAMELLIA_256_CFB128,
+ POLARSSL_MODE_CFB128,
+ 256,
+ "CAMELLIA-256-CFB128",
+ 16,
+ 16,
+ &camellia_info
+};
+#endif /* POLARSSL_CIPHER_MODE_CFB */
+
+#if defined(POLARSSL_CIPHER_MODE_CTR)
+const cipher_info_t camellia_128_ctr_info = {
+ POLARSSL_CIPHER_CAMELLIA_128_CTR,
+ POLARSSL_MODE_CTR,
+ 128,
+ "CAMELLIA-128-CTR",
+ 16,
+ 16,
+ &camellia_info
+};
+
+const cipher_info_t camellia_192_ctr_info = {
+ POLARSSL_CIPHER_CAMELLIA_192_CTR,
+ POLARSSL_MODE_CTR,
+ 192,
+ "CAMELLIA-192-CTR",
+ 16,
+ 16,
+ &camellia_info
+};
+
+const cipher_info_t camellia_256_ctr_info = {
+ POLARSSL_CIPHER_CAMELLIA_256_CTR,
+ POLARSSL_MODE_CTR,
+ 256,
+ "CAMELLIA-256-CTR",
+ 16,
+ 16,
+ &camellia_info
+};
+#endif /* POLARSSL_CIPHER_MODE_CTR */
+
+#endif
+
+#if defined(POLARSSL_DES_C)
+
+int des_crypt_cbc_wrap( void *ctx, operation_t operation, size_t length,
+ unsigned char *iv, const unsigned char *input, unsigned char *output )
+{
+ return des_crypt_cbc( (des_context *) ctx, operation, length, iv, input, output );
+}
+
+int des3_crypt_cbc_wrap( void *ctx, operation_t operation, size_t length,
+ unsigned char *iv, const unsigned char *input, unsigned char *output )
+{
+ return des3_crypt_cbc( (des3_context *) ctx, operation, length, iv, input, output );
+}
+
+int des_crypt_cfb128_wrap( void *ctx, operation_t operation, size_t length,
+ size_t *iv_off, unsigned char *iv, const unsigned char *input, unsigned char *output )
+{
+ ((void) ctx);
+ ((void) operation);
+ ((void) length);
+ ((void) iv_off);
+ ((void) iv);
+ ((void) input);
+ ((void) output);
+
+ return POLARSSL_ERR_CIPHER_FEATURE_UNAVAILABLE;
+}
+
+int des_crypt_ctr_wrap( void *ctx, size_t length,
+ size_t *nc_off, unsigned char *nonce_counter, unsigned char *stream_block,
+ const unsigned char *input, unsigned char *output )
+{
+ ((void) ctx);
+ ((void) length);
+ ((void) nc_off);
+ ((void) nonce_counter);
+ ((void) stream_block);
+ ((void) input);
+ ((void) output);
+
+ return POLARSSL_ERR_CIPHER_FEATURE_UNAVAILABLE;
+}
+
+
+int des_setkey_dec_wrap( void *ctx, const unsigned char *key, unsigned int key_length )
+{
+ ((void) key_length);
+
+ return des_setkey_dec( (des_context *) ctx, key );
+}
+
+int des_setkey_enc_wrap( void *ctx, const unsigned char *key, unsigned int key_length )
+{
+ ((void) key_length);
+
+ return des_setkey_enc( (des_context *) ctx, key );
+}
+
+int des3_set2key_dec_wrap( void *ctx, const unsigned char *key, unsigned int key_length )
+{
+ ((void) key_length);
+
+ return des3_set2key_dec( (des3_context *) ctx, key );
+}
+
+int des3_set2key_enc_wrap( void *ctx, const unsigned char *key, unsigned int key_length )
+{
+ ((void) key_length);
+
+ return des3_set2key_enc( (des3_context *) ctx, key );
+}
+
+int des3_set3key_dec_wrap( void *ctx, const unsigned char *key, unsigned int key_length )
+{
+ ((void) key_length);
+
+ return des3_set3key_dec( (des3_context *) ctx, key );
+}
+
+int des3_set3key_enc_wrap( void *ctx, const unsigned char *key, unsigned int key_length )
+{
+ ((void) key_length);
+
+ return des3_set3key_enc( (des3_context *) ctx, key );
+}
+
+static void * des_ctx_alloc( void )
+{
+ return malloc( sizeof( des_context ) );
+}
+
+static void * des3_ctx_alloc( void )
+{
+ return malloc( sizeof( des3_context ) );
+}
+
+static void des_ctx_free( void *ctx )
+{
+ free( ctx );
+}
+
+const cipher_base_t des_info = {
+ POLARSSL_CIPHER_ID_DES,
+ des_crypt_cbc_wrap,
+ des_crypt_cfb128_wrap,
+ des_crypt_ctr_wrap,
+ des_setkey_enc_wrap,
+ des_setkey_dec_wrap,
+ des_ctx_alloc,
+ des_ctx_free
+};
+
+const cipher_info_t des_cbc_info = {
+ POLARSSL_CIPHER_DES_CBC,
+ POLARSSL_MODE_CBC,
+ POLARSSL_KEY_LENGTH_DES,
+ "DES-CBC",
+ 8,
+ 8,
+ &des_info
+};
+
+const cipher_base_t des_ede_info = {
+ POLARSSL_CIPHER_ID_DES,
+ des3_crypt_cbc_wrap,
+ des_crypt_cfb128_wrap,
+ des_crypt_ctr_wrap,
+ des3_set2key_enc_wrap,
+ des3_set2key_dec_wrap,
+ des3_ctx_alloc,
+ des_ctx_free
+};
+
+const cipher_info_t des_ede_cbc_info = {
+ POLARSSL_CIPHER_DES_EDE_CBC,
+ POLARSSL_MODE_CBC,
+ POLARSSL_KEY_LENGTH_DES_EDE,
+ "DES-EDE-CBC",
+ 16,
+ 16,
+ &des_ede_info
+};
+
+const cipher_base_t des_ede3_info = {
+ POLARSSL_CIPHER_ID_DES,
+ des3_crypt_cbc_wrap,
+ des_crypt_cfb128_wrap,
+ des_crypt_ctr_wrap,
+ des3_set3key_enc_wrap,
+ des3_set3key_dec_wrap,
+ des3_ctx_alloc,
+ des_ctx_free
+};
+
+const cipher_info_t des_ede3_cbc_info = {
+ POLARSSL_CIPHER_DES_EDE3_CBC,
+ POLARSSL_MODE_CBC,
+ POLARSSL_KEY_LENGTH_DES_EDE3,
+ "DES-EDE3-CBC",
+ 8,
+ 8,
+ &des_ede3_info
+};
+#endif
+
+#endif
--- /dev/null
+/*
+ * CTR_DRBG implementation based on AES-256 (NIST SP 800-90)
+ *
+ * Copyright (C) 2006-2011, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+/*
+ * The NIST SP 800-90 DRBGs are described in the following publucation.
+ *
+ * http://csrc.nist.gov/publications/nistpubs/800-90/SP800-90revised_March2007.pdf
+ */
+
+#include "polarssl/config.h"
+
+#if defined(POLARSSL_CTR_DRBG_C)
+
+#include "polarssl/ctr_drbg.h"
+
+#if defined(POLARSSL_FS_IO)
+#include <stdio.h>
+#endif
+
+/*
+ * Non-public function wrapped by ctr_crbg_init(). Necessary to allow NIST
+ * tests to succeed (which require known length fixed entropy)
+ */
+int ctr_drbg_init_entropy_len(
+ ctr_drbg_context *ctx,
+ int (*f_entropy)(void *, unsigned char *, size_t),
+ void *p_entropy,
+ const unsigned char *custom,
+ size_t len,
+ size_t entropy_len )
+{
+ int ret;
+ unsigned char key[CTR_DRBG_KEYSIZE];
+
+ memset( ctx, 0, sizeof(ctr_drbg_context) );
+ memset( key, 0, CTR_DRBG_KEYSIZE );
+
+ ctx->f_entropy = f_entropy;
+ ctx->p_entropy = p_entropy;
+
+ ctx->entropy_len = entropy_len;
+ ctx->reseed_interval = CTR_DRBG_RESEED_INTERVAL;
+
+ /*
+ * Initialize with an empty key
+ */
+ aes_setkey_enc( &ctx->aes_ctx, key, CTR_DRBG_KEYBITS );
+
+ if( ( ret = ctr_drbg_reseed( ctx, custom, len ) ) != 0 )
+ return( ret );
+
+ return( 0 );
+}
+
+int ctr_drbg_init( ctr_drbg_context *ctx,
+ int (*f_entropy)(void *, unsigned char *, size_t),
+ void *p_entropy,
+ const unsigned char *custom,
+ size_t len )
+{
+ return( ctr_drbg_init_entropy_len( ctx, f_entropy, p_entropy, custom, len,
+ CTR_DRBG_ENTROPY_LEN ) );
+}
+
+void ctr_drbg_set_prediction_resistance( ctr_drbg_context *ctx, int resistance )
+{
+ ctx->prediction_resistance = resistance;
+}
+
+void ctr_drbg_set_entropy_len( ctr_drbg_context *ctx, size_t len )
+{
+ ctx->entropy_len = len;
+}
+
+void ctr_drbg_set_reseed_interval( ctr_drbg_context *ctx, int interval )
+{
+ ctx->reseed_interval = interval;
+}
+
+int block_cipher_df( unsigned char *output,
+ const unsigned char *data, size_t data_len )
+{
+ unsigned char buf[CTR_DRBG_MAX_SEED_INPUT + CTR_DRBG_BLOCKSIZE + 16];
+ unsigned char tmp[CTR_DRBG_SEEDLEN];
+ unsigned char key[CTR_DRBG_KEYSIZE];
+ unsigned char chain[CTR_DRBG_BLOCKSIZE];
+ unsigned char *p = buf, *iv;
+ aes_context aes_ctx;
+
+ int i, j, buf_len, use_len;
+
+ memset( buf, 0, CTR_DRBG_MAX_SEED_INPUT + CTR_DRBG_BLOCKSIZE + 16 );
+
+ /*
+ * Construct IV (16 bytes) and S in buffer
+ * IV = Counter (in 32-bits) padded to 16 with zeroes
+ * S = Length input string (in 32-bits) || Length of output (in 32-bits) ||
+ * data || 0x80
+ * (Total is padded to a multiple of 16-bytes with zeroes)
+ */
+ p = buf + CTR_DRBG_BLOCKSIZE;
+ *p++ = ( data_len >> 24 ) & 0xff;
+ *p++ = ( data_len >> 16 ) & 0xff;
+ *p++ = ( data_len >> 8 ) & 0xff;
+ *p++ = ( data_len ) & 0xff;
+ p += 3;
+ *p++ = CTR_DRBG_SEEDLEN;
+ memcpy( p, data, data_len );
+ p[data_len] = 0x80;
+
+ buf_len = CTR_DRBG_BLOCKSIZE + 8 + data_len + 1;
+
+ for( i = 0; i < CTR_DRBG_KEYSIZE; i++ )
+ key[i] = i;
+
+ aes_setkey_enc( &aes_ctx, key, CTR_DRBG_KEYBITS );
+
+ /*
+ * Reduce data to POLARSSL_CTR_DRBG_SEEDLEN bytes of data
+ */
+ for( j = 0; j < CTR_DRBG_SEEDLEN; j += CTR_DRBG_BLOCKSIZE )
+ {
+ p = buf;
+ memset( chain, 0, CTR_DRBG_BLOCKSIZE );
+ use_len = buf_len;
+
+ while( use_len > 0 )
+ {
+ for( i = 0; i < CTR_DRBG_BLOCKSIZE; i++ )
+ chain[i] ^= p[i];
+ p += CTR_DRBG_BLOCKSIZE;
+ use_len -= CTR_DRBG_BLOCKSIZE;
+
+ aes_crypt_ecb( &aes_ctx, AES_ENCRYPT, chain, chain );
+ }
+
+ memcpy( tmp + j, chain, CTR_DRBG_BLOCKSIZE );
+
+ /*
+ * Update IV
+ */
+ buf[3]++;
+ }
+
+ /*
+ * Do final encryption with reduced data
+ */
+ aes_setkey_enc( &aes_ctx, tmp, CTR_DRBG_KEYBITS );
+ iv = tmp + CTR_DRBG_KEYSIZE;
+ p = output;
+
+ for( j = 0; j < CTR_DRBG_SEEDLEN; j += CTR_DRBG_BLOCKSIZE )
+ {
+ aes_crypt_ecb( &aes_ctx, AES_ENCRYPT, iv, iv );
+ memcpy( p, iv, CTR_DRBG_BLOCKSIZE );
+ p += CTR_DRBG_BLOCKSIZE;
+ }
+
+ return( 0 );
+}
+
+int ctr_drbg_update_internal( ctr_drbg_context *ctx,
+ const unsigned char data[CTR_DRBG_SEEDLEN] )
+{
+ unsigned char tmp[CTR_DRBG_SEEDLEN];
+ unsigned char *p = tmp;
+ int cb, i, j;
+
+ memset( tmp, 0, CTR_DRBG_SEEDLEN );
+
+ for( j = 0; j < CTR_DRBG_SEEDLEN; j += CTR_DRBG_BLOCKSIZE )
+ {
+ /*
+ * Increase counter
+ */
+ i = CTR_DRBG_BLOCKSIZE - 1;
+ do {
+ ctx->counter[i]++;
+ cb = ctx->counter[i] == 0;
+ } while( i-- && cb );
+
+ /*
+ * Crypt counter block
+ */
+ aes_crypt_ecb( &ctx->aes_ctx, AES_ENCRYPT, ctx->counter, p );
+
+ p += CTR_DRBG_BLOCKSIZE;
+ }
+
+ for( i = 0; i < CTR_DRBG_SEEDLEN; i++ )
+ tmp[i] ^= data[i];
+
+ /*
+ * Update key and counter
+ */
+ aes_setkey_enc( &ctx->aes_ctx, tmp, CTR_DRBG_KEYBITS );
+ memcpy( ctx->counter, tmp + CTR_DRBG_KEYSIZE, CTR_DRBG_BLOCKSIZE );
+
+ return( 0 );
+}
+
+void ctr_drbg_update( ctr_drbg_context *ctx,
+ const unsigned char *additional, size_t add_len )
+{
+ unsigned char add_input[CTR_DRBG_SEEDLEN];
+
+ if( add_len > 0 )
+ {
+ block_cipher_df( add_input, additional, add_len );
+ ctr_drbg_update_internal( ctx, add_input );
+ }
+}
+
+int ctr_drbg_reseed( ctr_drbg_context *ctx,
+ const unsigned char *additional, size_t len )
+{
+ unsigned char seed[CTR_DRBG_MAX_SEED_INPUT];
+ size_t seedlen = 0;
+
+ if( ctx->entropy_len + len > CTR_DRBG_MAX_SEED_INPUT )
+ return( POLARSSL_ERR_CTR_DRBG_INPUT_TOO_BIG );
+
+ memset( seed, 0, CTR_DRBG_MAX_SEED_INPUT );
+
+ /*
+ * Gather enropy_len bytes of entropy to seed state
+ */
+ if( 0 != ctx->f_entropy( ctx->p_entropy, seed,
+ ctx->entropy_len ) )
+ {
+ return( POLARSSL_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED );
+ }
+
+ seedlen += ctx->entropy_len;
+
+ /*
+ * Add additional data
+ */
+ if( additional && len )
+ {
+ memcpy( seed + seedlen, additional, len );
+ seedlen += len;
+ }
+
+ /*
+ * Reduce to 384 bits
+ */
+ block_cipher_df( seed, seed, seedlen );
+
+ /*
+ * Update state
+ */
+ ctr_drbg_update_internal( ctx, seed );
+ ctx->reseed_counter = 1;
+
+ return( 0 );
+}
+
+int ctr_drbg_random_with_add( void *p_rng,
+ unsigned char *output, size_t output_len,
+ const unsigned char *additional, size_t add_len )
+{
+ int ret = 0;
+ ctr_drbg_context *ctx = (ctr_drbg_context *) p_rng;
+ unsigned char add_input[CTR_DRBG_SEEDLEN];
+ unsigned char *p = output;
+ unsigned char tmp[CTR_DRBG_BLOCKSIZE];
+ int cb, i;
+ size_t use_len;
+
+ if( output_len > CTR_DRBG_MAX_REQUEST )
+ return( POLARSSL_ERR_CTR_DRBG_REQUEST_TOO_BIG );
+
+ if( add_len > CTR_DRBG_MAX_INPUT )
+ return( POLARSSL_ERR_CTR_DRBG_INPUT_TOO_BIG );
+
+ memset( add_input, 0, CTR_DRBG_SEEDLEN );
+
+ if( ctx->reseed_counter > ctx->reseed_interval ||
+ ctx->prediction_resistance )
+ {
+ if( ( ret = ctr_drbg_reseed( ctx, additional, add_len ) ) != 0 )
+ return( ret );
+
+ add_len = 0;
+ }
+
+ if( add_len > 0 )
+ {
+ block_cipher_df( add_input, additional, add_len );
+ ctr_drbg_update_internal( ctx, add_input );
+ }
+
+ while( output_len > 0 )
+ {
+ /*
+ * Increase counter
+ */
+ i = CTR_DRBG_BLOCKSIZE - 1;
+ do {
+ ctx->counter[i]++;
+ cb = ctx->counter[i] == 0;
+ } while( i-- && cb );
+
+ /*
+ * Crypt counter block
+ */
+ aes_crypt_ecb( &ctx->aes_ctx, AES_ENCRYPT, ctx->counter, tmp );
+
+ use_len = (output_len > CTR_DRBG_BLOCKSIZE ) ? CTR_DRBG_BLOCKSIZE : output_len;
+ /*
+ * Copy random block to destination
+ */
+ memcpy( p, tmp, use_len );
+ p += use_len;
+ output_len -= use_len;
+ }
+
+ ctr_drbg_update_internal( ctx, add_input );
+
+ ctx->reseed_counter++;
+
+ return( 0 );
+}
+
+int ctr_drbg_random( void *p_rng, unsigned char *output, size_t output_len )
+{
+ return ctr_drbg_random_with_add( p_rng, output, output_len, NULL, 0 );
+}
+
+#if defined(POLARSSL_FS_IO)
+int ctr_drbg_write_seed_file( ctr_drbg_context *ctx, const char *path )
+{
+ int ret;
+ FILE *f;
+ unsigned char buf[ CTR_DRBG_MAX_INPUT ];
+
+ if( ( f = fopen( path, "wb" ) ) == NULL )
+ return( POLARSSL_ERR_CTR_DRBG_FILE_IO_ERROR );
+
+ if( ( ret = ctr_drbg_random( ctx, buf, CTR_DRBG_MAX_INPUT ) ) != 0 )
+ return( ret );
+
+ if( fwrite( buf, 1, CTR_DRBG_MAX_INPUT, f ) != CTR_DRBG_MAX_INPUT )
+ {
+ fclose( f );
+ return( POLARSSL_ERR_CTR_DRBG_FILE_IO_ERROR );
+ }
+
+ fclose( f );
+ return( 0 );
+}
+
+int ctr_drbg_update_seed_file( ctr_drbg_context *ctx, const char *path )
+{
+ FILE *f;
+ size_t n;
+ unsigned char buf[ CTR_DRBG_MAX_INPUT ];
+
+ if( ( f = fopen( path, "rb" ) ) == NULL )
+ return( POLARSSL_ERR_CTR_DRBG_FILE_IO_ERROR );
+
+ fseek( f, 0, SEEK_END );
+ n = (size_t) ftell( f );
+ fseek( f, 0, SEEK_SET );
+
+ if( n > CTR_DRBG_MAX_INPUT )
+ return( POLARSSL_ERR_CTR_DRBG_INPUT_TOO_BIG );
+
+ if( fread( buf, 1, n, f ) != n )
+ {
+ fclose( f );
+ return( POLARSSL_ERR_CTR_DRBG_FILE_IO_ERROR );
+ }
+
+ ctr_drbg_update( ctx, buf, n );
+
+ fclose( f );
+
+ return( ctr_drbg_write_seed_file( ctx, path ) );
+}
+#endif /* POLARSSL_FS_IO */
+
+#if defined(POLARSSL_SELF_TEST)
+
+#include <stdio.h>
+
+unsigned char entropy_source_pr[96] =
+ { 0xc1, 0x80, 0x81, 0xa6, 0x5d, 0x44, 0x02, 0x16,
+ 0x19, 0xb3, 0xf1, 0x80, 0xb1, 0xc9, 0x20, 0x02,
+ 0x6a, 0x54, 0x6f, 0x0c, 0x70, 0x81, 0x49, 0x8b,
+ 0x6e, 0xa6, 0x62, 0x52, 0x6d, 0x51, 0xb1, 0xcb,
+ 0x58, 0x3b, 0xfa, 0xd5, 0x37, 0x5f, 0xfb, 0xc9,
+ 0xff, 0x46, 0xd2, 0x19, 0xc7, 0x22, 0x3e, 0x95,
+ 0x45, 0x9d, 0x82, 0xe1, 0xe7, 0x22, 0x9f, 0x63,
+ 0x31, 0x69, 0xd2, 0x6b, 0x57, 0x47, 0x4f, 0xa3,
+ 0x37, 0xc9, 0x98, 0x1c, 0x0b, 0xfb, 0x91, 0x31,
+ 0x4d, 0x55, 0xb9, 0xe9, 0x1c, 0x5a, 0x5e, 0xe4,
+ 0x93, 0x92, 0xcf, 0xc5, 0x23, 0x12, 0xd5, 0x56,
+ 0x2c, 0x4a, 0x6e, 0xff, 0xdc, 0x10, 0xd0, 0x68 };
+
+unsigned char entropy_source_nopr[64] =
+ { 0x5a, 0x19, 0x4d, 0x5e, 0x2b, 0x31, 0x58, 0x14,
+ 0x54, 0xde, 0xf6, 0x75, 0xfb, 0x79, 0x58, 0xfe,
+ 0xc7, 0xdb, 0x87, 0x3e, 0x56, 0x89, 0xfc, 0x9d,
+ 0x03, 0x21, 0x7c, 0x68, 0xd8, 0x03, 0x38, 0x20,
+ 0xf9, 0xe6, 0x5e, 0x04, 0xd8, 0x56, 0xf3, 0xa9,
+ 0xc4, 0x4a, 0x4c, 0xbd, 0xc1, 0xd0, 0x08, 0x46,
+ 0xf5, 0x98, 0x3d, 0x77, 0x1c, 0x1b, 0x13, 0x7e,
+ 0x4e, 0x0f, 0x9d, 0x8e, 0xf4, 0x09, 0xf9, 0x2e };
+
+unsigned char nonce_pers_pr[16] =
+ { 0xd2, 0x54, 0xfc, 0xff, 0x02, 0x1e, 0x69, 0xd2,
+ 0x29, 0xc9, 0xcf, 0xad, 0x85, 0xfa, 0x48, 0x6c };
+
+unsigned char nonce_pers_nopr[16] =
+ { 0x1b, 0x54, 0xb8, 0xff, 0x06, 0x42, 0xbf, 0xf5,
+ 0x21, 0xf1, 0x5c, 0x1c, 0x0b, 0x66, 0x5f, 0x3f };
+
+unsigned char result_pr[16] =
+ { 0x34, 0x01, 0x16, 0x56, 0xb4, 0x29, 0x00, 0x8f,
+ 0x35, 0x63, 0xec, 0xb5, 0xf2, 0x59, 0x07, 0x23 };
+
+unsigned char result_nopr[16] =
+ { 0xa0, 0x54, 0x30, 0x3d, 0x8a, 0x7e, 0xa9, 0x88,
+ 0x9d, 0x90, 0x3e, 0x07, 0x7c, 0x6f, 0x21, 0x8f };
+
+int test_offset;
+int ctr_drbg_self_test_entropy( void *data, unsigned char *buf, size_t len )
+{
+ unsigned char *p = data;
+ memcpy( buf, p + test_offset, len );
+ test_offset += 32;
+ return( 0 );
+}
+
+/*
+ * Checkup routine
+ */
+int ctr_drbg_self_test( int verbose )
+{
+ ctr_drbg_context ctx;
+ unsigned char buf[16];
+
+ /*
+ * Based on a NIST CTR_DRBG test vector (PR = True)
+ */
+ if( verbose != 0 )
+ printf( " CTR_DRBG (PR = TRUE) : " );
+
+ test_offset = 0;
+ if( ctr_drbg_init_entropy_len( &ctx, ctr_drbg_self_test_entropy, entropy_source_pr, nonce_pers_pr, 16, 32 ) != 0 )
+ {
+ if( verbose != 0 )
+ printf( "failed\n" );
+
+ return( 1 );
+ }
+ ctr_drbg_set_prediction_resistance( &ctx, CTR_DRBG_PR_ON );
+
+ if( ctr_drbg_random( &ctx, buf, CTR_DRBG_BLOCKSIZE ) != 0 )
+ {
+ if( verbose != 0 )
+ printf( "failed\n" );
+
+ return( 1 );
+ }
+
+ if( ctr_drbg_random( &ctx, buf, CTR_DRBG_BLOCKSIZE ) != 0 )
+ {
+ if( verbose != 0 )
+ printf( "failed\n" );
+
+ return( 1 );
+ }
+
+ if( memcmp( buf, result_pr, CTR_DRBG_BLOCKSIZE ) != 0 )
+ {
+ if( verbose != 0 )
+ printf( "failed\n" );
+
+ return( 1 );
+ }
+
+ if( verbose != 0 )
+ printf( "passed\n" );
+
+ /*
+ * Based on a NIST CTR_DRBG test vector (PR = FALSE)
+ */
+ if( verbose != 0 )
+ printf( " CTR_DRBG (PR = FALSE): " );
+
+ test_offset = 0;
+ if( ctr_drbg_init_entropy_len( &ctx, ctr_drbg_self_test_entropy, entropy_source_nopr, nonce_pers_nopr, 16, 32 ) != 0 )
+ {
+ if( verbose != 0 )
+ printf( "failed\n" );
+
+ return( 1 );
+ }
+
+ if( ctr_drbg_random( &ctx, buf, 16 ) != 0 )
+ {
+ if( verbose != 0 )
+ printf( "failed\n" );
+
+ return( 1 );
+ }
+
+ if( ctr_drbg_reseed( &ctx, NULL, 0 ) != 0 )
+ {
+ if( verbose != 0 )
+ printf( "failed\n" );
+
+ return( 1 );
+ }
+
+ if( ctr_drbg_random( &ctx, buf, 16 ) != 0 )
+ {
+ if( verbose != 0 )
+ printf( "failed\n" );
+
+ return( 1 );
+ }
+
+ if( memcmp( buf, result_nopr, 16 ) != 0 )
+ {
+ if( verbose != 0 )
+ printf( "failed\n" );
+
+ return( 1 );
+ }
+
+ if( verbose != 0 )
+ printf( "passed\n" );
+
+ if( verbose != 0 )
+ printf( "\n" );
+
+ return( 0 );
+}
+#endif
+
+#endif
--- /dev/null
+/*
+ * Debugging routines
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "polarssl/config.h"
+
+#if defined(POLARSSL_DEBUG_C)
+
+#include "polarssl/debug.h"
+
+#include <stdarg.h>
+#include <stdlib.h>
+
+#if defined _MSC_VER && !defined snprintf
+#define snprintf _snprintf
+#endif
+
+#if defined _MSC_VER && !defined vsnprintf
+#define vsnprintf _vsnprintf
+#endif
+
+char *debug_fmt( const char *format, ... )
+{
+ va_list argp;
+ static char str[512];
+ int maxlen = sizeof( str ) - 1;
+
+ va_start( argp, format );
+ vsnprintf( str, maxlen, format, argp );
+ va_end( argp );
+
+ str[maxlen] = '\0';
+ return( str );
+}
+
+void debug_print_msg( const ssl_context *ssl, int level,
+ const char *file, int line, const char *text )
+{
+ char str[512];
+ int maxlen = sizeof( str ) - 1;
+
+ if( ssl->f_dbg == NULL )
+ return;
+
+ snprintf( str, maxlen, "%s(%04d): %s\n", file, line, text );
+ str[maxlen] = '\0';
+ ssl->f_dbg( ssl->p_dbg, level, str );
+}
+
+void debug_print_ret( const ssl_context *ssl, int level,
+ const char *file, int line,
+ const char *text, int ret )
+{
+ char str[512];
+ int maxlen = sizeof( str ) - 1;
+
+ if( ssl->f_dbg == NULL )
+ return;
+
+ snprintf( str, maxlen, "%s(%04d): %s() returned %d (0x%x)\n",
+ file, line, text, ret, ret );
+
+ str[maxlen] = '\0';
+ ssl->f_dbg( ssl->p_dbg, level, str );
+}
+
+void debug_print_buf( const ssl_context *ssl, int level,
+ const char *file, int line, const char *text,
+ unsigned char *buf, size_t len )
+{
+ char str[512];
+ size_t i, maxlen = sizeof( str ) - 1;
+
+ if( ssl->f_dbg == NULL )
+ return;
+
+ snprintf( str, maxlen, "%s(%04d): dumping '%s' (%d bytes)\n",
+ file, line, text, (unsigned int) len );
+
+ str[maxlen] = '\0';
+ ssl->f_dbg( ssl->p_dbg, level, str );
+
+ for( i = 0; i < len; i++ )
+ {
+ if( i >= 4096 )
+ break;
+
+ if( i % 16 == 0 )
+ {
+ if( i > 0 )
+ ssl->f_dbg( ssl->p_dbg, level, "\n" );
+
+ snprintf( str, maxlen, "%s(%04d): %04x: ", file, line,
+ (unsigned int) i );
+
+ str[maxlen] = '\0';
+ ssl->f_dbg( ssl->p_dbg, level, str );
+ }
+
+ snprintf( str, maxlen, " %02x", (unsigned int) buf[i] );
+
+ str[maxlen] = '\0';
+ ssl->f_dbg( ssl->p_dbg, level, str );
+ }
+
+ if( len > 0 )
+ ssl->f_dbg( ssl->p_dbg, level, "\n" );
+}
+
+void debug_print_mpi( const ssl_context *ssl, int level,
+ const char *file, int line,
+ const char *text, const mpi *X )
+{
+ char str[512];
+ int j, k, maxlen = sizeof( str ) - 1, zeros = 1;
+ size_t i, n;
+
+ if( ssl->f_dbg == NULL || X == NULL )
+ return;
+
+ for( n = X->n - 1; n > 0; n-- )
+ if( X->p[n] != 0 )
+ break;
+
+ for( j = ( sizeof(t_uint) << 3 ) - 1; j >= 0; j-- )
+ if( ( ( X->p[n] >> j ) & 1 ) != 0 )
+ break;
+
+ snprintf( str, maxlen, "%s(%04d): value of '%s' (%lu bits) is:\n",
+ file, line, text,
+ (unsigned long) ( ( n * ( sizeof(t_uint) << 3 ) ) + j + 1 ) );
+
+ str[maxlen] = '\0';
+ ssl->f_dbg( ssl->p_dbg, level, str );
+
+ for( i = n + 1, j = 0; i > 0; i-- )
+ {
+ if( zeros && X->p[i - 1] == 0 )
+ continue;
+
+ for( k = sizeof( t_uint ) - 1; k >= 0; k-- )
+ {
+ if( zeros && ( ( X->p[i - 1] >> (k << 3) ) & 0xFF ) == 0 )
+ continue;
+ else
+ zeros = 0;
+
+ if( j % 16 == 0 )
+ {
+ if( j > 0 )
+ ssl->f_dbg( ssl->p_dbg, level, "\n" );
+
+ snprintf( str, maxlen, "%s(%04d): ", file, line );
+
+ str[maxlen] = '\0';
+ ssl->f_dbg( ssl->p_dbg, level, str );
+ }
+
+ snprintf( str, maxlen, " %02x", (unsigned int)
+ ( X->p[i - 1] >> (k << 3) ) & 0xFF );
+
+ str[maxlen] = '\0';
+ ssl->f_dbg( ssl->p_dbg, level, str );
+
+ j++;
+ }
+
+ }
+
+ if( zeros == 1 )
+ {
+ snprintf( str, maxlen, "%s(%04d): ", file, line );
+
+ str[maxlen] = '\0';
+ ssl->f_dbg( ssl->p_dbg, level, str );
+ ssl->f_dbg( ssl->p_dbg, level, " 00" );
+ }
+
+ ssl->f_dbg( ssl->p_dbg, level, "\n" );
+}
+
+void debug_print_crt( const ssl_context *ssl, int level,
+ const char *file, int line,
+ const char *text, const x509_cert *crt )
+{
+ char str[1024], prefix[64];
+ int i = 0, maxlen = sizeof( prefix ) - 1;
+
+ if( ssl->f_dbg == NULL || crt == NULL )
+ return;
+
+ snprintf( prefix, maxlen, "%s(%04d): ", file, line );
+ prefix[maxlen] = '\0';
+ maxlen = sizeof( str ) - 1;
+
+ while( crt != NULL )
+ {
+ char buf[1024];
+ x509parse_cert_info( buf, sizeof( buf ) - 1, prefix, crt );
+
+ snprintf( str, maxlen, "%s(%04d): %s #%d:\n%s",
+ file, line, text, ++i, buf );
+
+ str[maxlen] = '\0';
+ ssl->f_dbg( ssl->p_dbg, level, str );
+
+ debug_print_mpi( ssl, level, file, line,
+ "crt->rsa.N", &crt->rsa.N );
+
+ debug_print_mpi( ssl, level, file, line,
+ "crt->rsa.E", &crt->rsa.E );
+
+ crt = crt->next;
+ }
+}
+
+#endif
--- /dev/null
+/*
+ * FIPS-46-3 compliant Triple-DES implementation
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+/*
+ * DES, on which TDES is based, was originally designed by Horst Feistel
+ * at IBM in 1974, and was adopted as a standard by NIST (formerly NBS).
+ *
+ * http://csrc.nist.gov/publications/fips/fips46-3/fips46-3.pdf
+ */
+
+#include "polarssl/config.h"
+
+#if defined(POLARSSL_DES_C)
+
+#include "polarssl/des.h"
+
+/*
+ * 32-bit integer manipulation macros (big endian)
+ */
+#ifndef GET_ULONG_BE
+#define GET_ULONG_BE(n,b,i) \
+{ \
+ (n) = ( (unsigned long) (b)[(i) ] << 24 ) \
+ | ( (unsigned long) (b)[(i) + 1] << 16 ) \
+ | ( (unsigned long) (b)[(i) + 2] << 8 ) \
+ | ( (unsigned long) (b)[(i) + 3] ); \
+}
+#endif
+
+#ifndef PUT_ULONG_BE
+#define PUT_ULONG_BE(n,b,i) \
+{ \
+ (b)[(i) ] = (unsigned char) ( (n) >> 24 ); \
+ (b)[(i) + 1] = (unsigned char) ( (n) >> 16 ); \
+ (b)[(i) + 2] = (unsigned char) ( (n) >> 8 ); \
+ (b)[(i) + 3] = (unsigned char) ( (n) ); \
+}
+#endif
+
+/*
+ * Expanded DES S-boxes
+ */
+static const unsigned long SB1[64] =
+{
+ 0x01010400, 0x00000000, 0x00010000, 0x01010404,
+ 0x01010004, 0x00010404, 0x00000004, 0x00010000,
+ 0x00000400, 0x01010400, 0x01010404, 0x00000400,
+ 0x01000404, 0x01010004, 0x01000000, 0x00000004,
+ 0x00000404, 0x01000400, 0x01000400, 0x00010400,
+ 0x00010400, 0x01010000, 0x01010000, 0x01000404,
+ 0x00010004, 0x01000004, 0x01000004, 0x00010004,
+ 0x00000000, 0x00000404, 0x00010404, 0x01000000,
+ 0x00010000, 0x01010404, 0x00000004, 0x01010000,
+ 0x01010400, 0x01000000, 0x01000000, 0x00000400,
+ 0x01010004, 0x00010000, 0x00010400, 0x01000004,
+ 0x00000400, 0x00000004, 0x01000404, 0x00010404,
+ 0x01010404, 0x00010004, 0x01010000, 0x01000404,
+ 0x01000004, 0x00000404, 0x00010404, 0x01010400,
+ 0x00000404, 0x01000400, 0x01000400, 0x00000000,
+ 0x00010004, 0x00010400, 0x00000000, 0x01010004
+};
+
+static const unsigned long SB2[64] =
+{
+ 0x80108020, 0x80008000, 0x00008000, 0x00108020,
+ 0x00100000, 0x00000020, 0x80100020, 0x80008020,
+ 0x80000020, 0x80108020, 0x80108000, 0x80000000,
+ 0x80008000, 0x00100000, 0x00000020, 0x80100020,
+ 0x00108000, 0x00100020, 0x80008020, 0x00000000,
+ 0x80000000, 0x00008000, 0x00108020, 0x80100000,
+ 0x00100020, 0x80000020, 0x00000000, 0x00108000,
+ 0x00008020, 0x80108000, 0x80100000, 0x00008020,
+ 0x00000000, 0x00108020, 0x80100020, 0x00100000,
+ 0x80008020, 0x80100000, 0x80108000, 0x00008000,
+ 0x80100000, 0x80008000, 0x00000020, 0x80108020,
+ 0x00108020, 0x00000020, 0x00008000, 0x80000000,
+ 0x00008020, 0x80108000, 0x00100000, 0x80000020,
+ 0x00100020, 0x80008020, 0x80000020, 0x00100020,
+ 0x00108000, 0x00000000, 0x80008000, 0x00008020,
+ 0x80000000, 0x80100020, 0x80108020, 0x00108000
+};
+
+static const unsigned long SB3[64] =
+{
+ 0x00000208, 0x08020200, 0x00000000, 0x08020008,
+ 0x08000200, 0x00000000, 0x00020208, 0x08000200,
+ 0x00020008, 0x08000008, 0x08000008, 0x00020000,
+ 0x08020208, 0x00020008, 0x08020000, 0x00000208,
+ 0x08000000, 0x00000008, 0x08020200, 0x00000200,
+ 0x00020200, 0x08020000, 0x08020008, 0x00020208,
+ 0x08000208, 0x00020200, 0x00020000, 0x08000208,
+ 0x00000008, 0x08020208, 0x00000200, 0x08000000,
+ 0x08020200, 0x08000000, 0x00020008, 0x00000208,
+ 0x00020000, 0x08020200, 0x08000200, 0x00000000,
+ 0x00000200, 0x00020008, 0x08020208, 0x08000200,
+ 0x08000008, 0x00000200, 0x00000000, 0x08020008,
+ 0x08000208, 0x00020000, 0x08000000, 0x08020208,
+ 0x00000008, 0x00020208, 0x00020200, 0x08000008,
+ 0x08020000, 0x08000208, 0x00000208, 0x08020000,
+ 0x00020208, 0x00000008, 0x08020008, 0x00020200
+};
+
+static const unsigned long SB4[64] =
+{
+ 0x00802001, 0x00002081, 0x00002081, 0x00000080,
+ 0x00802080, 0x00800081, 0x00800001, 0x00002001,
+ 0x00000000, 0x00802000, 0x00802000, 0x00802081,
+ 0x00000081, 0x00000000, 0x00800080, 0x00800001,
+ 0x00000001, 0x00002000, 0x00800000, 0x00802001,
+ 0x00000080, 0x00800000, 0x00002001, 0x00002080,
+ 0x00800081, 0x00000001, 0x00002080, 0x00800080,
+ 0x00002000, 0x00802080, 0x00802081, 0x00000081,
+ 0x00800080, 0x00800001, 0x00802000, 0x00802081,
+ 0x00000081, 0x00000000, 0x00000000, 0x00802000,
+ 0x00002080, 0x00800080, 0x00800081, 0x00000001,
+ 0x00802001, 0x00002081, 0x00002081, 0x00000080,
+ 0x00802081, 0x00000081, 0x00000001, 0x00002000,
+ 0x00800001, 0x00002001, 0x00802080, 0x00800081,
+ 0x00002001, 0x00002080, 0x00800000, 0x00802001,
+ 0x00000080, 0x00800000, 0x00002000, 0x00802080
+};
+
+static const unsigned long SB5[64] =
+{
+ 0x00000100, 0x02080100, 0x02080000, 0x42000100,
+ 0x00080000, 0x00000100, 0x40000000, 0x02080000,
+ 0x40080100, 0x00080000, 0x02000100, 0x40080100,
+ 0x42000100, 0x42080000, 0x00080100, 0x40000000,
+ 0x02000000, 0x40080000, 0x40080000, 0x00000000,
+ 0x40000100, 0x42080100, 0x42080100, 0x02000100,
+ 0x42080000, 0x40000100, 0x00000000, 0x42000000,
+ 0x02080100, 0x02000000, 0x42000000, 0x00080100,
+ 0x00080000, 0x42000100, 0x00000100, 0x02000000,
+ 0x40000000, 0x02080000, 0x42000100, 0x40080100,
+ 0x02000100, 0x40000000, 0x42080000, 0x02080100,
+ 0x40080100, 0x00000100, 0x02000000, 0x42080000,
+ 0x42080100, 0x00080100, 0x42000000, 0x42080100,
+ 0x02080000, 0x00000000, 0x40080000, 0x42000000,
+ 0x00080100, 0x02000100, 0x40000100, 0x00080000,
+ 0x00000000, 0x40080000, 0x02080100, 0x40000100
+};
+
+static const unsigned long SB6[64] =
+{
+ 0x20000010, 0x20400000, 0x00004000, 0x20404010,
+ 0x20400000, 0x00000010, 0x20404010, 0x00400000,
+ 0x20004000, 0x00404010, 0x00400000, 0x20000010,
+ 0x00400010, 0x20004000, 0x20000000, 0x00004010,
+ 0x00000000, 0x00400010, 0x20004010, 0x00004000,
+ 0x00404000, 0x20004010, 0x00000010, 0x20400010,
+ 0x20400010, 0x00000000, 0x00404010, 0x20404000,
+ 0x00004010, 0x00404000, 0x20404000, 0x20000000,
+ 0x20004000, 0x00000010, 0x20400010, 0x00404000,
+ 0x20404010, 0x00400000, 0x00004010, 0x20000010,
+ 0x00400000, 0x20004000, 0x20000000, 0x00004010,
+ 0x20000010, 0x20404010, 0x00404000, 0x20400000,
+ 0x00404010, 0x20404000, 0x00000000, 0x20400010,
+ 0x00000010, 0x00004000, 0x20400000, 0x00404010,
+ 0x00004000, 0x00400010, 0x20004010, 0x00000000,
+ 0x20404000, 0x20000000, 0x00400010, 0x20004010
+};
+
+static const unsigned long SB7[64] =
+{
+ 0x00200000, 0x04200002, 0x04000802, 0x00000000,
+ 0x00000800, 0x04000802, 0x00200802, 0x04200800,
+ 0x04200802, 0x00200000, 0x00000000, 0x04000002,
+ 0x00000002, 0x04000000, 0x04200002, 0x00000802,
+ 0x04000800, 0x00200802, 0x00200002, 0x04000800,
+ 0x04000002, 0x04200000, 0x04200800, 0x00200002,
+ 0x04200000, 0x00000800, 0x00000802, 0x04200802,
+ 0x00200800, 0x00000002, 0x04000000, 0x00200800,
+ 0x04000000, 0x00200800, 0x00200000, 0x04000802,
+ 0x04000802, 0x04200002, 0x04200002, 0x00000002,
+ 0x00200002, 0x04000000, 0x04000800, 0x00200000,
+ 0x04200800, 0x00000802, 0x00200802, 0x04200800,
+ 0x00000802, 0x04000002, 0x04200802, 0x04200000,
+ 0x00200800, 0x00000000, 0x00000002, 0x04200802,
+ 0x00000000, 0x00200802, 0x04200000, 0x00000800,
+ 0x04000002, 0x04000800, 0x00000800, 0x00200002
+};
+
+static const unsigned long SB8[64] =
+{
+ 0x10001040, 0x00001000, 0x00040000, 0x10041040,
+ 0x10000000, 0x10001040, 0x00000040, 0x10000000,
+ 0x00040040, 0x10040000, 0x10041040, 0x00041000,
+ 0x10041000, 0x00041040, 0x00001000, 0x00000040,
+ 0x10040000, 0x10000040, 0x10001000, 0x00001040,
+ 0x00041000, 0x00040040, 0x10040040, 0x10041000,
+ 0x00001040, 0x00000000, 0x00000000, 0x10040040,
+ 0x10000040, 0x10001000, 0x00041040, 0x00040000,
+ 0x00041040, 0x00040000, 0x10041000, 0x00001000,
+ 0x00000040, 0x10040040, 0x00001000, 0x00041040,
+ 0x10001000, 0x00000040, 0x10000040, 0x10040000,
+ 0x10040040, 0x10000000, 0x00040000, 0x10001040,
+ 0x00000000, 0x10041040, 0x00040040, 0x10000040,
+ 0x10040000, 0x10001000, 0x10001040, 0x00000000,
+ 0x10041040, 0x00041000, 0x00041000, 0x00001040,
+ 0x00001040, 0x00040040, 0x10000000, 0x10041000
+};
+
+/*
+ * PC1: left and right halves bit-swap
+ */
+static const unsigned long LHs[16] =
+{
+ 0x00000000, 0x00000001, 0x00000100, 0x00000101,
+ 0x00010000, 0x00010001, 0x00010100, 0x00010101,
+ 0x01000000, 0x01000001, 0x01000100, 0x01000101,
+ 0x01010000, 0x01010001, 0x01010100, 0x01010101
+};
+
+static const unsigned long RHs[16] =
+{
+ 0x00000000, 0x01000000, 0x00010000, 0x01010000,
+ 0x00000100, 0x01000100, 0x00010100, 0x01010100,
+ 0x00000001, 0x01000001, 0x00010001, 0x01010001,
+ 0x00000101, 0x01000101, 0x00010101, 0x01010101,
+};
+
+/*
+ * Initial Permutation macro
+ */
+#define DES_IP(X,Y) \
+{ \
+ T = ((X >> 4) ^ Y) & 0x0F0F0F0F; Y ^= T; X ^= (T << 4); \
+ T = ((X >> 16) ^ Y) & 0x0000FFFF; Y ^= T; X ^= (T << 16); \
+ T = ((Y >> 2) ^ X) & 0x33333333; X ^= T; Y ^= (T << 2); \
+ T = ((Y >> 8) ^ X) & 0x00FF00FF; X ^= T; Y ^= (T << 8); \
+ Y = ((Y << 1) | (Y >> 31)) & 0xFFFFFFFF; \
+ T = (X ^ Y) & 0xAAAAAAAA; Y ^= T; X ^= T; \
+ X = ((X << 1) | (X >> 31)) & 0xFFFFFFFF; \
+}
+
+/*
+ * Final Permutation macro
+ */
+#define DES_FP(X,Y) \
+{ \
+ X = ((X << 31) | (X >> 1)) & 0xFFFFFFFF; \
+ T = (X ^ Y) & 0xAAAAAAAA; X ^= T; Y ^= T; \
+ Y = ((Y << 31) | (Y >> 1)) & 0xFFFFFFFF; \
+ T = ((Y >> 8) ^ X) & 0x00FF00FF; X ^= T; Y ^= (T << 8); \
+ T = ((Y >> 2) ^ X) & 0x33333333; X ^= T; Y ^= (T << 2); \
+ T = ((X >> 16) ^ Y) & 0x0000FFFF; Y ^= T; X ^= (T << 16); \
+ T = ((X >> 4) ^ Y) & 0x0F0F0F0F; Y ^= T; X ^= (T << 4); \
+}
+
+/*
+ * DES round macro
+ */
+#define DES_ROUND(X,Y) \
+{ \
+ T = *SK++ ^ X; \
+ Y ^= SB8[ (T ) & 0x3F ] ^ \
+ SB6[ (T >> 8) & 0x3F ] ^ \
+ SB4[ (T >> 16) & 0x3F ] ^ \
+ SB2[ (T >> 24) & 0x3F ]; \
+ \
+ T = *SK++ ^ ((X << 28) | (X >> 4)); \
+ Y ^= SB7[ (T ) & 0x3F ] ^ \
+ SB5[ (T >> 8) & 0x3F ] ^ \
+ SB3[ (T >> 16) & 0x3F ] ^ \
+ SB1[ (T >> 24) & 0x3F ]; \
+}
+
+#define SWAP(a,b) { unsigned long t = a; a = b; b = t; t = 0; }
+
+static const unsigned char odd_parity_table[128] = { 1, 2, 4, 7, 8,
+ 11, 13, 14, 16, 19, 21, 22, 25, 26, 28, 31, 32, 35, 37, 38, 41, 42, 44,
+ 47, 49, 50, 52, 55, 56, 59, 61, 62, 64, 67, 69, 70, 73, 74, 76, 79, 81,
+ 82, 84, 87, 88, 91, 93, 94, 97, 98, 100, 103, 104, 107, 109, 110, 112,
+ 115, 117, 118, 121, 122, 124, 127, 128, 131, 133, 134, 137, 138, 140,
+ 143, 145, 146, 148, 151, 152, 155, 157, 158, 161, 162, 164, 167, 168,
+ 171, 173, 174, 176, 179, 181, 182, 185, 186, 188, 191, 193, 194, 196,
+ 199, 200, 203, 205, 206, 208, 211, 213, 214, 217, 218, 220, 223, 224,
+ 227, 229, 230, 233, 234, 236, 239, 241, 242, 244, 247, 248, 251, 253,
+ 254 };
+
+void des_key_set_parity( unsigned char key[DES_KEY_SIZE] )
+{
+ int i;
+
+ for( i = 0; i < DES_KEY_SIZE; i++ )
+ key[i] = odd_parity_table[key[i] / 2];
+}
+
+/*
+ * Check the given key's parity, returns 1 on failure, 0 on SUCCESS
+ */
+int des_key_check_key_parity( const unsigned char key[DES_KEY_SIZE] )
+{
+ int i;
+
+ for( i = 0; i < DES_KEY_SIZE; i++ )
+ if ( key[i] != odd_parity_table[key[i] / 2] )
+ return( 1 );
+
+ return( 0 );
+}
+
+/*
+ * Table of weak and semi-weak keys
+ *
+ * Source: http://en.wikipedia.org/wiki/Weak_key
+ *
+ * Weak:
+ * Alternating ones + zeros (0x0101010101010101)
+ * Alternating 'F' + 'E' (0xFEFEFEFEFEFEFEFE)
+ * '0xE0E0E0E0F1F1F1F1'
+ * '0x1F1F1F1F0E0E0E0E'
+ *
+ * Semi-weak:
+ * 0x011F011F010E010E and 0x1F011F010E010E01
+ * 0x01E001E001F101F1 and 0xE001E001F101F101
+ * 0x01FE01FE01FE01FE and 0xFE01FE01FE01FE01
+ * 0x1FE01FE00EF10EF1 and 0xE01FE01FF10EF10E
+ * 0x1FFE1FFE0EFE0EFE and 0xFE1FFE1FFE0EFE0E
+ * 0xE0FEE0FEF1FEF1FE and 0xFEE0FEE0FEF1FEF1
+ *
+ */
+
+#define WEAK_KEY_COUNT 16
+
+static const unsigned char weak_key_table[WEAK_KEY_COUNT][DES_KEY_SIZE] =
+{
+ { 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01 },
+ { 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE },
+ { 0x1F, 0x1F, 0x1F, 0x1F, 0x0E, 0x0E, 0x0E, 0x0E },
+ { 0xE0, 0xE0, 0xE0, 0xE0, 0xF1, 0xF1, 0xF1, 0xF1 },
+
+ { 0x01, 0x1F, 0x01, 0x1F, 0x01, 0x0E, 0x01, 0x0E },
+ { 0x1F, 0x01, 0x1F, 0x01, 0x0E, 0x01, 0x0E, 0x01 },
+ { 0x01, 0xE0, 0x01, 0xE0, 0x01, 0xF1, 0x01, 0xF1 },
+ { 0xE0, 0x01, 0xE0, 0x01, 0xF1, 0x01, 0xF1, 0x01 },
+ { 0x01, 0xFE, 0x01, 0xFE, 0x01, 0xFE, 0x01, 0xFE },
+ { 0xFE, 0x01, 0xFE, 0x01, 0xFE, 0x01, 0xFE, 0x01 },
+ { 0x1F, 0xE0, 0x1F, 0xE0, 0x0E, 0xF1, 0x0E, 0xF1 },
+ { 0xE0, 0x1F, 0xE0, 0x1F, 0xF1, 0x0E, 0xF1, 0x0E },
+ { 0x1F, 0xFE, 0x1F, 0xFE, 0x0E, 0xFE, 0x0E, 0xFE },
+ { 0xFE, 0x1F, 0xFE, 0x1F, 0xFE, 0x0E, 0xFE, 0x0E },
+ { 0xE0, 0xFE, 0xE0, 0xFE, 0xF1, 0xFE, 0xF1, 0xFE },
+ { 0xFE, 0xE0, 0xFE, 0xE0, 0xFE, 0xF1, 0xFE, 0xF1 }
+};
+
+int des_key_check_weak( const unsigned char key[DES_KEY_SIZE] )
+{
+ int i;
+
+ for( i = 0; i < WEAK_KEY_COUNT; i++ )
+ if( memcmp( weak_key_table[i], key, DES_KEY_SIZE) == 0)
+ return( 1 );
+
+ return( 0 );
+}
+
+static void des_setkey( unsigned long SK[32], const unsigned char key[DES_KEY_SIZE] )
+{
+ int i;
+ unsigned long X, Y, T;
+
+ GET_ULONG_BE( X, key, 0 );
+ GET_ULONG_BE( Y, key, 4 );
+
+ /*
+ * Permuted Choice 1
+ */
+ T = ((Y >> 4) ^ X) & 0x0F0F0F0F; X ^= T; Y ^= (T << 4);
+ T = ((Y ) ^ X) & 0x10101010; X ^= T; Y ^= (T );
+
+ X = (LHs[ (X ) & 0xF] << 3) | (LHs[ (X >> 8) & 0xF ] << 2)
+ | (LHs[ (X >> 16) & 0xF] << 1) | (LHs[ (X >> 24) & 0xF ] )
+ | (LHs[ (X >> 5) & 0xF] << 7) | (LHs[ (X >> 13) & 0xF ] << 6)
+ | (LHs[ (X >> 21) & 0xF] << 5) | (LHs[ (X >> 29) & 0xF ] << 4);
+
+ Y = (RHs[ (Y >> 1) & 0xF] << 3) | (RHs[ (Y >> 9) & 0xF ] << 2)
+ | (RHs[ (Y >> 17) & 0xF] << 1) | (RHs[ (Y >> 25) & 0xF ] )
+ | (RHs[ (Y >> 4) & 0xF] << 7) | (RHs[ (Y >> 12) & 0xF ] << 6)
+ | (RHs[ (Y >> 20) & 0xF] << 5) | (RHs[ (Y >> 28) & 0xF ] << 4);
+
+ X &= 0x0FFFFFFF;
+ Y &= 0x0FFFFFFF;
+
+ /*
+ * calculate subkeys
+ */
+ for( i = 0; i < 16; i++ )
+ {
+ if( i < 2 || i == 8 || i == 15 )
+ {
+ X = ((X << 1) | (X >> 27)) & 0x0FFFFFFF;
+ Y = ((Y << 1) | (Y >> 27)) & 0x0FFFFFFF;
+ }
+ else
+ {
+ X = ((X << 2) | (X >> 26)) & 0x0FFFFFFF;
+ Y = ((Y << 2) | (Y >> 26)) & 0x0FFFFFFF;
+ }
+
+ *SK++ = ((X << 4) & 0x24000000) | ((X << 28) & 0x10000000)
+ | ((X << 14) & 0x08000000) | ((X << 18) & 0x02080000)
+ | ((X << 6) & 0x01000000) | ((X << 9) & 0x00200000)
+ | ((X >> 1) & 0x00100000) | ((X << 10) & 0x00040000)
+ | ((X << 2) & 0x00020000) | ((X >> 10) & 0x00010000)
+ | ((Y >> 13) & 0x00002000) | ((Y >> 4) & 0x00001000)
+ | ((Y << 6) & 0x00000800) | ((Y >> 1) & 0x00000400)
+ | ((Y >> 14) & 0x00000200) | ((Y ) & 0x00000100)
+ | ((Y >> 5) & 0x00000020) | ((Y >> 10) & 0x00000010)
+ | ((Y >> 3) & 0x00000008) | ((Y >> 18) & 0x00000004)
+ | ((Y >> 26) & 0x00000002) | ((Y >> 24) & 0x00000001);
+
+ *SK++ = ((X << 15) & 0x20000000) | ((X << 17) & 0x10000000)
+ | ((X << 10) & 0x08000000) | ((X << 22) & 0x04000000)
+ | ((X >> 2) & 0x02000000) | ((X << 1) & 0x01000000)
+ | ((X << 16) & 0x00200000) | ((X << 11) & 0x00100000)
+ | ((X << 3) & 0x00080000) | ((X >> 6) & 0x00040000)
+ | ((X << 15) & 0x00020000) | ((X >> 4) & 0x00010000)
+ | ((Y >> 2) & 0x00002000) | ((Y << 8) & 0x00001000)
+ | ((Y >> 14) & 0x00000808) | ((Y >> 9) & 0x00000400)
+ | ((Y ) & 0x00000200) | ((Y << 7) & 0x00000100)
+ | ((Y >> 7) & 0x00000020) | ((Y >> 3) & 0x00000011)
+ | ((Y << 2) & 0x00000004) | ((Y >> 21) & 0x00000002);
+ }
+}
+
+/*
+ * DES key schedule (56-bit, encryption)
+ */
+int des_setkey_enc( des_context *ctx, const unsigned char key[DES_KEY_SIZE] )
+{
+ des_setkey( ctx->sk, key );
+
+ return( 0 );
+}
+
+/*
+ * DES key schedule (56-bit, decryption)
+ */
+int des_setkey_dec( des_context *ctx, const unsigned char key[DES_KEY_SIZE] )
+{
+ int i;
+
+ des_setkey( ctx->sk, key );
+
+ for( i = 0; i < 16; i += 2 )
+ {
+ SWAP( ctx->sk[i ], ctx->sk[30 - i] );
+ SWAP( ctx->sk[i + 1], ctx->sk[31 - i] );
+ }
+
+ return( 0 );
+}
+
+static void des3_set2key( unsigned long esk[96],
+ unsigned long dsk[96],
+ const unsigned char key[DES_KEY_SIZE*2] )
+{
+ int i;
+
+ des_setkey( esk, key );
+ des_setkey( dsk + 32, key + 8 );
+
+ for( i = 0; i < 32; i += 2 )
+ {
+ dsk[i ] = esk[30 - i];
+ dsk[i + 1] = esk[31 - i];
+
+ esk[i + 32] = dsk[62 - i];
+ esk[i + 33] = dsk[63 - i];
+
+ esk[i + 64] = esk[i ];
+ esk[i + 65] = esk[i + 1];
+
+ dsk[i + 64] = dsk[i ];
+ dsk[i + 65] = dsk[i + 1];
+ }
+}
+
+/*
+ * Triple-DES key schedule (112-bit, encryption)
+ */
+int des3_set2key_enc( des3_context *ctx, const unsigned char key[DES_KEY_SIZE * 2] )
+{
+ unsigned long sk[96];
+
+ des3_set2key( ctx->sk, sk, key );
+ memset( sk, 0, sizeof( sk ) );
+
+ return( 0 );
+}
+
+/*
+ * Triple-DES key schedule (112-bit, decryption)
+ */
+int des3_set2key_dec( des3_context *ctx, const unsigned char key[DES_KEY_SIZE * 2] )
+{
+ unsigned long sk[96];
+
+ des3_set2key( sk, ctx->sk, key );
+ memset( sk, 0, sizeof( sk ) );
+
+ return( 0 );
+}
+
+static void des3_set3key( unsigned long esk[96],
+ unsigned long dsk[96],
+ const unsigned char key[24] )
+{
+ int i;
+
+ des_setkey( esk, key );
+ des_setkey( dsk + 32, key + 8 );
+ des_setkey( esk + 64, key + 16 );
+
+ for( i = 0; i < 32; i += 2 )
+ {
+ dsk[i ] = esk[94 - i];
+ dsk[i + 1] = esk[95 - i];
+
+ esk[i + 32] = dsk[62 - i];
+ esk[i + 33] = dsk[63 - i];
+
+ dsk[i + 64] = esk[30 - i];
+ dsk[i + 65] = esk[31 - i];
+ }
+}
+
+/*
+ * Triple-DES key schedule (168-bit, encryption)
+ */
+int des3_set3key_enc( des3_context *ctx, const unsigned char key[DES_KEY_SIZE * 3] )
+{
+ unsigned long sk[96];
+
+ des3_set3key( ctx->sk, sk, key );
+ memset( sk, 0, sizeof( sk ) );
+
+ return( 0 );
+}
+
+/*
+ * Triple-DES key schedule (168-bit, decryption)
+ */
+int des3_set3key_dec( des3_context *ctx, const unsigned char key[DES_KEY_SIZE * 3] )
+{
+ unsigned long sk[96];
+
+ des3_set3key( sk, ctx->sk, key );
+ memset( sk, 0, sizeof( sk ) );
+
+ return( 0 );
+}
+
+/*
+ * DES-ECB block encryption/decryption
+ */
+int des_crypt_ecb( des_context *ctx,
+ const unsigned char input[8],
+ unsigned char output[8] )
+{
+ int i;
+ unsigned long X, Y, T, *SK;
+
+ SK = ctx->sk;
+
+ GET_ULONG_BE( X, input, 0 );
+ GET_ULONG_BE( Y, input, 4 );
+
+ DES_IP( X, Y );
+
+ for( i = 0; i < 8; i++ )
+ {
+ DES_ROUND( Y, X );
+ DES_ROUND( X, Y );
+ }
+
+ DES_FP( Y, X );
+
+ PUT_ULONG_BE( Y, output, 0 );
+ PUT_ULONG_BE( X, output, 4 );
+
+ return( 0 );
+}
+
+/*
+ * DES-CBC buffer encryption/decryption
+ */
+int des_crypt_cbc( des_context *ctx,
+ int mode,
+ size_t length,
+ unsigned char iv[8],
+ const unsigned char *input,
+ unsigned char *output )
+{
+ int i;
+ unsigned char temp[8];
+
+ if( length % 8 )
+ return( POLARSSL_ERR_DES_INVALID_INPUT_LENGTH );
+
+ if( mode == DES_ENCRYPT )
+ {
+ while( length > 0 )
+ {
+ for( i = 0; i < 8; i++ )
+ output[i] = (unsigned char)( input[i] ^ iv[i] );
+
+ des_crypt_ecb( ctx, output, output );
+ memcpy( iv, output, 8 );
+
+ input += 8;
+ output += 8;
+ length -= 8;
+ }
+ }
+ else /* DES_DECRYPT */
+ {
+ while( length > 0 )
+ {
+ memcpy( temp, input, 8 );
+ des_crypt_ecb( ctx, input, output );
+
+ for( i = 0; i < 8; i++ )
+ output[i] = (unsigned char)( output[i] ^ iv[i] );
+
+ memcpy( iv, temp, 8 );
+
+ input += 8;
+ output += 8;
+ length -= 8;
+ }
+ }
+
+ return( 0 );
+}
+
+/*
+ * 3DES-ECB block encryption/decryption
+ */
+int des3_crypt_ecb( des3_context *ctx,
+ const unsigned char input[8],
+ unsigned char output[8] )
+{
+ int i;
+ unsigned long X, Y, T, *SK;
+
+ SK = ctx->sk;
+
+ GET_ULONG_BE( X, input, 0 );
+ GET_ULONG_BE( Y, input, 4 );
+
+ DES_IP( X, Y );
+
+ for( i = 0; i < 8; i++ )
+ {
+ DES_ROUND( Y, X );
+ DES_ROUND( X, Y );
+ }
+
+ for( i = 0; i < 8; i++ )
+ {
+ DES_ROUND( X, Y );
+ DES_ROUND( Y, X );
+ }
+
+ for( i = 0; i < 8; i++ )
+ {
+ DES_ROUND( Y, X );
+ DES_ROUND( X, Y );
+ }
+
+ DES_FP( Y, X );
+
+ PUT_ULONG_BE( Y, output, 0 );
+ PUT_ULONG_BE( X, output, 4 );
+
+ return( 0 );
+}
+
+/*
+ * 3DES-CBC buffer encryption/decryption
+ */
+int des3_crypt_cbc( des3_context *ctx,
+ int mode,
+ size_t length,
+ unsigned char iv[8],
+ const unsigned char *input,
+ unsigned char *output )
+{
+ int i;
+ unsigned char temp[8];
+
+ if( length % 8 )
+ return( POLARSSL_ERR_DES_INVALID_INPUT_LENGTH );
+
+ if( mode == DES_ENCRYPT )
+ {
+ while( length > 0 )
+ {
+ for( i = 0; i < 8; i++ )
+ output[i] = (unsigned char)( input[i] ^ iv[i] );
+
+ des3_crypt_ecb( ctx, output, output );
+ memcpy( iv, output, 8 );
+
+ input += 8;
+ output += 8;
+ length -= 8;
+ }
+ }
+ else /* DES_DECRYPT */
+ {
+ while( length > 0 )
+ {
+ memcpy( temp, input, 8 );
+ des3_crypt_ecb( ctx, input, output );
+
+ for( i = 0; i < 8; i++ )
+ output[i] = (unsigned char)( output[i] ^ iv[i] );
+
+ memcpy( iv, temp, 8 );
+
+ input += 8;
+ output += 8;
+ length -= 8;
+ }
+ }
+
+ return( 0 );
+}
+
+#if defined(POLARSSL_SELF_TEST)
+
+#include <stdio.h>
+
+/*
+ * DES and 3DES test vectors from:
+ *
+ * http://csrc.nist.gov/groups/STM/cavp/documents/des/tripledes-vectors.zip
+ */
+static const unsigned char des3_test_keys[24] =
+{
+ 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF,
+ 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF, 0x01,
+ 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF, 0x01, 0x23
+};
+
+static const unsigned char des3_test_iv[8] =
+{
+ 0x12, 0x34, 0x56, 0x78, 0x90, 0xAB, 0xCD, 0xEF,
+};
+
+static const unsigned char des3_test_buf[8] =
+{
+ 0x4E, 0x6F, 0x77, 0x20, 0x69, 0x73, 0x20, 0x74
+};
+
+static const unsigned char des3_test_ecb_dec[3][8] =
+{
+ { 0xCD, 0xD6, 0x4F, 0x2F, 0x94, 0x27, 0xC1, 0x5D },
+ { 0x69, 0x96, 0xC8, 0xFA, 0x47, 0xA2, 0xAB, 0xEB },
+ { 0x83, 0x25, 0x39, 0x76, 0x44, 0x09, 0x1A, 0x0A }
+};
+
+static const unsigned char des3_test_ecb_enc[3][8] =
+{
+ { 0x6A, 0x2A, 0x19, 0xF4, 0x1E, 0xCA, 0x85, 0x4B },
+ { 0x03, 0xE6, 0x9F, 0x5B, 0xFA, 0x58, 0xEB, 0x42 },
+ { 0xDD, 0x17, 0xE8, 0xB8, 0xB4, 0x37, 0xD2, 0x32 }
+};
+
+static const unsigned char des3_test_cbc_dec[3][8] =
+{
+ { 0x12, 0x9F, 0x40, 0xB9, 0xD2, 0x00, 0x56, 0xB3 },
+ { 0x47, 0x0E, 0xFC, 0x9A, 0x6B, 0x8E, 0xE3, 0x93 },
+ { 0xC5, 0xCE, 0xCF, 0x63, 0xEC, 0xEC, 0x51, 0x4C }
+};
+
+static const unsigned char des3_test_cbc_enc[3][8] =
+{
+ { 0x54, 0xF1, 0x5A, 0xF6, 0xEB, 0xE3, 0xA4, 0xB4 },
+ { 0x35, 0x76, 0x11, 0x56, 0x5F, 0xA1, 0x8E, 0x4D },
+ { 0xCB, 0x19, 0x1F, 0x85, 0xD1, 0xED, 0x84, 0x39 }
+};
+
+/*
+ * Checkup routine
+ */
+int des_self_test( int verbose )
+{
+ int i, j, u, v;
+ des_context ctx;
+ des3_context ctx3;
+ unsigned char key[24];
+ unsigned char buf[8];
+ unsigned char prv[8];
+ unsigned char iv[8];
+
+ memset( key, 0, 24 );
+
+ /*
+ * ECB mode
+ */
+ for( i = 0; i < 6; i++ )
+ {
+ u = i >> 1;
+ v = i & 1;
+
+ if( verbose != 0 )
+ printf( " DES%c-ECB-%3d (%s): ",
+ ( u == 0 ) ? ' ' : '3', 56 + u * 56,
+ ( v == DES_DECRYPT ) ? "dec" : "enc" );
+
+ memcpy( buf, des3_test_buf, 8 );
+
+ switch( i )
+ {
+ case 0:
+ des_setkey_dec( &ctx, (unsigned char *) des3_test_keys );
+ break;
+
+ case 1:
+ des_setkey_enc( &ctx, (unsigned char *) des3_test_keys );
+ break;
+
+ case 2:
+ des3_set2key_dec( &ctx3, (unsigned char *) des3_test_keys );
+ break;
+
+ case 3:
+ des3_set2key_enc( &ctx3, (unsigned char *) des3_test_keys );
+ break;
+
+ case 4:
+ des3_set3key_dec( &ctx3, (unsigned char *) des3_test_keys );
+ break;
+
+ case 5:
+ des3_set3key_enc( &ctx3, (unsigned char *) des3_test_keys );
+ break;
+
+ default:
+ return( 1 );
+ }
+
+ for( j = 0; j < 10000; j++ )
+ {
+ if( u == 0 )
+ des_crypt_ecb( &ctx, buf, buf );
+ else
+ des3_crypt_ecb( &ctx3, buf, buf );
+ }
+
+ if( ( v == DES_DECRYPT &&
+ memcmp( buf, des3_test_ecb_dec[u], 8 ) != 0 ) ||
+ ( v != DES_DECRYPT &&
+ memcmp( buf, des3_test_ecb_enc[u], 8 ) != 0 ) )
+ {
+ if( verbose != 0 )
+ printf( "failed\n" );
+
+ return( 1 );
+ }
+
+ if( verbose != 0 )
+ printf( "passed\n" );
+ }
+
+ if( verbose != 0 )
+ printf( "\n" );
+
+ /*
+ * CBC mode
+ */
+ for( i = 0; i < 6; i++ )
+ {
+ u = i >> 1;
+ v = i & 1;
+
+ if( verbose != 0 )
+ printf( " DES%c-CBC-%3d (%s): ",
+ ( u == 0 ) ? ' ' : '3', 56 + u * 56,
+ ( v == DES_DECRYPT ) ? "dec" : "enc" );
+
+ memcpy( iv, des3_test_iv, 8 );
+ memcpy( prv, des3_test_iv, 8 );
+ memcpy( buf, des3_test_buf, 8 );
+
+ switch( i )
+ {
+ case 0:
+ des_setkey_dec( &ctx, (unsigned char *) des3_test_keys );
+ break;
+
+ case 1:
+ des_setkey_enc( &ctx, (unsigned char *) des3_test_keys );
+ break;
+
+ case 2:
+ des3_set2key_dec( &ctx3, (unsigned char *) des3_test_keys );
+ break;
+
+ case 3:
+ des3_set2key_enc( &ctx3, (unsigned char *) des3_test_keys );
+ break;
+
+ case 4:
+ des3_set3key_dec( &ctx3, (unsigned char *) des3_test_keys );
+ break;
+
+ case 5:
+ des3_set3key_enc( &ctx3, (unsigned char *) des3_test_keys );
+ break;
+
+ default:
+ return( 1 );
+ }
+
+ if( v == DES_DECRYPT )
+ {
+ for( j = 0; j < 10000; j++ )
+ {
+ if( u == 0 )
+ des_crypt_cbc( &ctx, v, 8, iv, buf, buf );
+ else
+ des3_crypt_cbc( &ctx3, v, 8, iv, buf, buf );
+ }
+ }
+ else
+ {
+ for( j = 0; j < 10000; j++ )
+ {
+ unsigned char tmp[8];
+
+ if( u == 0 )
+ des_crypt_cbc( &ctx, v, 8, iv, buf, buf );
+ else
+ des3_crypt_cbc( &ctx3, v, 8, iv, buf, buf );
+
+ memcpy( tmp, prv, 8 );
+ memcpy( prv, buf, 8 );
+ memcpy( buf, tmp, 8 );
+ }
+
+ memcpy( buf, prv, 8 );
+ }
+
+ if( ( v == DES_DECRYPT &&
+ memcmp( buf, des3_test_cbc_dec[u], 8 ) != 0 ) ||
+ ( v != DES_DECRYPT &&
+ memcmp( buf, des3_test_cbc_enc[u], 8 ) != 0 ) )
+ {
+ if( verbose != 0 )
+ printf( "failed\n" );
+
+ return( 1 );
+ }
+
+ if( verbose != 0 )
+ printf( "passed\n" );
+ }
+
+ if( verbose != 0 )
+ printf( "\n" );
+
+ return( 0 );
+}
+
+#endif
+
+#endif
--- /dev/null
+/*
+ * Diffie-Hellman-Merkle key exchange
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+/*
+ * Reference:
+ *
+ * http://www.cacr.math.uwaterloo.ca/hac/ (chapter 12)
+ */
+
+#include "polarssl/config.h"
+
+#if defined(POLARSSL_DHM_C)
+
+#include "polarssl/dhm.h"
+
+/*
+ * helper to validate the mpi size and import it
+ */
+static int dhm_read_bignum( mpi *X,
+ unsigned char **p,
+ const unsigned char *end )
+{
+ int ret, n;
+
+ if( end - *p < 2 )
+ return( POLARSSL_ERR_DHM_BAD_INPUT_DATA );
+
+ n = ( (*p)[0] << 8 ) | (*p)[1];
+ (*p) += 2;
+
+ if( (int)( end - *p ) < n )
+ return( POLARSSL_ERR_DHM_BAD_INPUT_DATA );
+
+ if( ( ret = mpi_read_binary( X, *p, n ) ) != 0 )
+ return( POLARSSL_ERR_DHM_READ_PARAMS_FAILED + ret );
+
+ (*p) += n;
+
+ return( 0 );
+}
+
+/*
+ * Verify sanity of public parameter with regards to P
+ *
+ * Public parameter should be: 2 <= public_param <= P - 2
+ *
+ * For more information on the attack, see:
+ * http://www.cl.cam.ac.uk/~rja14/Papers/psandqs.pdf
+ * http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2005-2643
+ */
+static int dhm_check_range( const mpi *public_param, const mpi *P )
+{
+ mpi L, U;
+ int ret = POLARSSL_ERR_DHM_BAD_INPUT_DATA;
+
+ mpi_init( &L ); mpi_init( &U );
+ mpi_lset( &L, 2 );
+ mpi_sub_int( &U, P, 2 );
+
+ if( mpi_cmp_mpi( public_param, &L ) >= 0 &&
+ mpi_cmp_mpi( public_param, &U ) <= 0 )
+ {
+ ret = 0;
+ }
+
+ mpi_free( &L ); mpi_free( &U );
+
+ return( ret );
+}
+
+/*
+ * Parse the ServerKeyExchange parameters
+ */
+int dhm_read_params( dhm_context *ctx,
+ unsigned char **p,
+ const unsigned char *end )
+{
+ int ret, n;
+
+ memset( ctx, 0, sizeof( dhm_context ) );
+
+ if( ( ret = dhm_read_bignum( &ctx->P, p, end ) ) != 0 ||
+ ( ret = dhm_read_bignum( &ctx->G, p, end ) ) != 0 ||
+ ( ret = dhm_read_bignum( &ctx->GY, p, end ) ) != 0 )
+ return( ret );
+
+ if( ( ret = dhm_check_range( &ctx->GY, &ctx->P ) ) != 0 )
+ return( ret );
+
+ ctx->len = mpi_size( &ctx->P );
+
+ if( end - *p < 2 )
+ return( POLARSSL_ERR_DHM_BAD_INPUT_DATA );
+
+ n = ( (*p)[0] << 8 ) | (*p)[1];
+ (*p) += 2;
+
+ if( end != *p + n )
+ return( POLARSSL_ERR_DHM_BAD_INPUT_DATA );
+
+ return( 0 );
+}
+
+/*
+ * Setup and write the ServerKeyExchange parameters
+ */
+int dhm_make_params( dhm_context *ctx, int x_size,
+ unsigned char *output, size_t *olen,
+ int (*f_rng)(void *, unsigned char *, size_t),
+ void *p_rng )
+{
+ int ret, n;
+ size_t n1, n2, n3;
+ unsigned char *p;
+
+ /*
+ * Generate X as large as possible ( < P )
+ */
+ n = x_size / sizeof( t_uint ) + 1;
+
+ mpi_fill_random( &ctx->X, n, f_rng, p_rng );
+
+ while( mpi_cmp_mpi( &ctx->X, &ctx->P ) >= 0 )
+ mpi_shift_r( &ctx->X, 1 );
+
+ /*
+ * Calculate GX = G^X mod P
+ */
+ MPI_CHK( mpi_exp_mod( &ctx->GX, &ctx->G, &ctx->X,
+ &ctx->P , &ctx->RP ) );
+
+ if( ( ret = dhm_check_range( &ctx->GX, &ctx->P ) ) != 0 )
+ return( ret );
+
+ /*
+ * export P, G, GX
+ */
+#define DHM_MPI_EXPORT(X,n) \
+ MPI_CHK( mpi_write_binary( X, p + 2, n ) ); \
+ *p++ = (unsigned char)( n >> 8 ); \
+ *p++ = (unsigned char)( n ); p += n;
+
+ n1 = mpi_size( &ctx->P );
+ n2 = mpi_size( &ctx->G );
+ n3 = mpi_size( &ctx->GX );
+
+ p = output;
+ DHM_MPI_EXPORT( &ctx->P , n1 );
+ DHM_MPI_EXPORT( &ctx->G , n2 );
+ DHM_MPI_EXPORT( &ctx->GX, n3 );
+
+ *olen = p - output;
+
+ ctx->len = n1;
+
+cleanup:
+
+ if( ret != 0 )
+ return( POLARSSL_ERR_DHM_MAKE_PARAMS_FAILED + ret );
+
+ return( 0 );
+}
+
+/*
+ * Import the peer's public value G^Y
+ */
+int dhm_read_public( dhm_context *ctx,
+ const unsigned char *input, size_t ilen )
+{
+ int ret;
+
+ if( ctx == NULL || ilen < 1 || ilen > ctx->len )
+ return( POLARSSL_ERR_DHM_BAD_INPUT_DATA );
+
+ if( ( ret = mpi_read_binary( &ctx->GY, input, ilen ) ) != 0 )
+ return( POLARSSL_ERR_DHM_READ_PUBLIC_FAILED + ret );
+
+ return( 0 );
+}
+
+/*
+ * Create own private value X and export G^X
+ */
+int dhm_make_public( dhm_context *ctx, int x_size,
+ unsigned char *output, size_t olen,
+ int (*f_rng)(void *, unsigned char *, size_t),
+ void *p_rng )
+{
+ int ret, n;
+
+ if( ctx == NULL || olen < 1 || olen > ctx->len )
+ return( POLARSSL_ERR_DHM_BAD_INPUT_DATA );
+
+ /*
+ * generate X and calculate GX = G^X mod P
+ */
+ n = x_size / sizeof( t_uint ) + 1;
+
+ mpi_fill_random( &ctx->X, n, f_rng, p_rng );
+
+ while( mpi_cmp_mpi( &ctx->X, &ctx->P ) >= 0 )
+ mpi_shift_r( &ctx->X, 1 );
+
+ MPI_CHK( mpi_exp_mod( &ctx->GX, &ctx->G, &ctx->X,
+ &ctx->P , &ctx->RP ) );
+
+ if( ( ret = dhm_check_range( &ctx->GX, &ctx->P ) ) != 0 )
+ return( ret );
+
+ MPI_CHK( mpi_write_binary( &ctx->GX, output, olen ) );
+
+cleanup:
+
+ if( ret != 0 )
+ return( POLARSSL_ERR_DHM_MAKE_PUBLIC_FAILED + ret );
+
+ return( 0 );
+}
+
+/*
+ * Derive and export the shared secret (G^Y)^X mod P
+ */
+int dhm_calc_secret( dhm_context *ctx,
+ unsigned char *output, size_t *olen )
+{
+ int ret;
+
+ if( ctx == NULL || *olen < ctx->len )
+ return( POLARSSL_ERR_DHM_BAD_INPUT_DATA );
+
+ MPI_CHK( mpi_exp_mod( &ctx->K, &ctx->GY, &ctx->X,
+ &ctx->P, &ctx->RP ) );
+
+ if( ( ret = dhm_check_range( &ctx->GY, &ctx->P ) ) != 0 )
+ return( ret );
+
+ *olen = mpi_size( &ctx->K );
+
+ MPI_CHK( mpi_write_binary( &ctx->K, output, *olen ) );
+
+cleanup:
+
+ if( ret != 0 )
+ return( POLARSSL_ERR_DHM_CALC_SECRET_FAILED + ret );
+
+ return( 0 );
+}
+
+/*
+ * Free the components of a DHM key
+ */
+void dhm_free( dhm_context *ctx )
+{
+ mpi_free( &ctx->RP ); mpi_free( &ctx->K ); mpi_free( &ctx->GY );
+ mpi_free( &ctx->GX ); mpi_free( &ctx->X ); mpi_free( &ctx->G );
+ mpi_free( &ctx->P );
+}
+
+#if defined(POLARSSL_SELF_TEST)
+
+/*
+ * Checkup routine
+ */
+int dhm_self_test( int verbose )
+{
+ return( verbose++ );
+}
+
+#endif
+
+#endif
--- /dev/null
+/*
+ * Entropy accumulator implementation
+ *
+ * Copyright (C) 2006-2011, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "polarssl/config.h"
+
+#if defined(POLARSSL_ENTROPY_C)
+
+#include "polarssl/entropy.h"
+#include "polarssl/entropy_poll.h"
+
+#if defined(POLARSSL_HAVEGE_C)
+#include "polarssl/havege.h"
+#endif
+
+#define ENTROPY_MAX_LOOP 256 /**< Maximum amount to loop before error */
+
+void entropy_init( entropy_context *ctx )
+{
+ memset( ctx, 0, sizeof(entropy_context) );
+
+ sha4_starts( &ctx->accumulator, 0 );
+#if defined(POLARSSL_HAVEGE_C)
+ havege_init( &ctx->havege_data );
+#endif
+
+#if !defined(POLARSSL_NO_DEFAULT_ENTROPY_SOURCES)
+#if !defined(POLARSSL_NO_PLATFORM_ENTROPY)
+ entropy_add_source( ctx, platform_entropy_poll, NULL,
+ ENTROPY_MIN_PLATFORM );
+#endif
+#if defined(POLARSSL_TIMING_C)
+ entropy_add_source( ctx, hardclock_poll, NULL, ENTROPY_MIN_HARDCLOCK );
+#endif
+#if defined(POLARSSL_HAVEGE_C)
+ entropy_add_source( ctx, havege_poll, &ctx->havege_data,
+ ENTROPY_MIN_HAVEGE );
+#endif
+#endif /* POLARSSL_NO_DEFAULT_ENTROPY_SOURCES */
+}
+
+int entropy_add_source( entropy_context *ctx,
+ f_source_ptr f_source, void *p_source,
+ size_t threshold )
+{
+ int index = ctx->source_count;
+
+ if( index >= ENTROPY_MAX_SOURCES )
+ return( POLARSSL_ERR_ENTROPY_MAX_SOURCES );
+
+ ctx->source[index].f_source = f_source;
+ ctx->source[index].p_source = p_source;
+ ctx->source[index].threshold = threshold;
+
+ ctx->source_count++;
+
+ return( 0 );
+}
+
+/*
+ * Entropy accumulator update
+ */
+int entropy_update( entropy_context *ctx, unsigned char source_id,
+ const unsigned char *data, size_t len )
+{
+ unsigned char header[2];
+ unsigned char tmp[ENTROPY_BLOCK_SIZE];
+ size_t use_len = len;
+ const unsigned char *p = data;
+
+ if( use_len > ENTROPY_BLOCK_SIZE )
+ {
+ sha4( data, len, tmp, 0 );
+
+ p = tmp;
+ use_len = ENTROPY_BLOCK_SIZE;
+ }
+
+ header[0] = source_id;
+ header[1] = use_len & 0xFF;
+
+ sha4_update( &ctx->accumulator, header, 2 );
+ sha4_update( &ctx->accumulator, p, use_len );
+
+ return( 0 );
+}
+
+int entropy_update_manual( entropy_context *ctx,
+ const unsigned char *data, size_t len )
+{
+ return entropy_update( ctx, ENTROPY_SOURCE_MANUAL, data, len );
+}
+
+/*
+ * Run through the different sources to add entropy to our accumulator
+ */
+int entropy_gather( entropy_context *ctx )
+{
+ int ret, i;
+ unsigned char buf[ENTROPY_MAX_GATHER];
+ size_t olen;
+
+ if( ctx->source_count == 0 )
+ return( POLARSSL_ERR_ENTROPY_NO_SOURCES_DEFINED );
+
+ /*
+ * Run through our entropy sources
+ */
+ for( i = 0; i < ctx->source_count; i++ )
+ {
+ olen = 0;
+ if ( ( ret = ctx->source[i].f_source( ctx->source[i].p_source,
+ buf, ENTROPY_MAX_GATHER, &olen ) ) != 0 )
+ {
+ return( ret );
+ }
+
+ /*
+ * Add if we actually gathered something
+ */
+ if( olen > 0 )
+ {
+ entropy_update( ctx, (unsigned char) i, buf, olen );
+ ctx->source[i].size += olen;
+ }
+ }
+
+ return( 0 );
+}
+
+int entropy_func( void *data, unsigned char *output, size_t len )
+{
+ int ret, count = 0, i, reached;
+ entropy_context *ctx = (entropy_context *) data;
+ unsigned char buf[ENTROPY_BLOCK_SIZE];
+
+ if( len > ENTROPY_BLOCK_SIZE )
+ return( POLARSSL_ERR_ENTROPY_SOURCE_FAILED );
+
+ /*
+ * Always gather extra entropy before a call
+ */
+ do
+ {
+ if( count++ > ENTROPY_MAX_LOOP )
+ return( POLARSSL_ERR_ENTROPY_SOURCE_FAILED );
+
+ if( ( ret = entropy_gather( ctx ) ) != 0 )
+ return( ret );
+
+ reached = 0;
+
+ for( i = 0; i < ctx->source_count; i++ )
+ if( ctx->source[i].size >= ctx->source[i].threshold )
+ reached++;
+ }
+ while( reached != ctx->source_count );
+
+ memset( buf, 0, ENTROPY_BLOCK_SIZE );
+
+ sha4_finish( &ctx->accumulator, buf );
+
+ /*
+ * Perform second SHA-512 on entropy
+ */
+ sha4( buf, ENTROPY_BLOCK_SIZE, buf, 0 );
+
+ /*
+ * Reset accumulator and counters and recycle existing entropy
+ */
+ memset( &ctx->accumulator, 0, sizeof( sha4_context ) );
+ sha4_starts( &ctx->accumulator, 0 );
+ sha4_update( &ctx->accumulator, buf, ENTROPY_BLOCK_SIZE );
+
+ for( i = 0; i < ctx->source_count; i++ )
+ ctx->source[i].size = 0;
+
+ memcpy( output, buf, len );
+
+ return( 0 );
+}
+
+#endif
--- /dev/null
+/*
+ * Platform-specific and custom entropy polling functions
+ *
+ * Copyright (C) 2006-2011, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "polarssl/config.h"
+
+#if defined(POLARSSL_ENTROPY_C)
+
+#include "polarssl/entropy.h"
+#include "polarssl/entropy_poll.h"
+
+#if defined(POLARSSL_TIMING_C)
+#include "polarssl/timing.h"
+#endif
+#if defined(POLARSSL_HAVEGE_C)
+#include "polarssl/havege.h"
+#endif
+
+#if !defined(POLARSSL_NO_PLATFORM_ENTROPY)
+#if defined(_WIN32)
+
+#include <windows.h>
+#if !defined(_WIN32_WINNT)
+#define _WIN32_WINNT 0x0400
+#endif
+#include <wincrypt.h>
+
+int platform_entropy_poll( void *data, unsigned char *output, size_t len,
+ size_t *olen )
+{
+ HCRYPTPROV provider;
+ ((void) data);
+ *olen = 0;
+
+ if( CryptAcquireContext( &provider, NULL, NULL,
+ PROV_RSA_FULL, CRYPT_VERIFYCONTEXT ) == FALSE )
+ {
+ return POLARSSL_ERR_ENTROPY_SOURCE_FAILED;
+ }
+
+ if( CryptGenRandom( provider, len, output ) == FALSE )
+ return POLARSSL_ERR_ENTROPY_SOURCE_FAILED;
+
+ CryptReleaseContext( provider, 0 );
+ *olen = len;
+
+ return( 0 );
+}
+#else
+
+#include <stdio.h>
+
+int platform_entropy_poll( void *data,
+ unsigned char *output, size_t len, size_t *olen )
+{
+ FILE *file;
+ size_t ret;
+ ((void) data);
+
+ *olen = 0;
+
+ file = fopen( "/dev/urandom", "rb" );
+ if( file == NULL )
+ return POLARSSL_ERR_ENTROPY_SOURCE_FAILED;
+
+ ret = fread( output, 1, len, file );
+ if( ret != len )
+ {
+ fclose( file );
+ return POLARSSL_ERR_ENTROPY_SOURCE_FAILED;
+ }
+
+ fclose( file );
+ *olen = len;
+
+ return( 0 );
+}
+#endif
+#endif
+
+#if defined(POLARSSL_TIMING_C)
+int hardclock_poll( void *data,
+ unsigned char *output, size_t len, size_t *olen )
+{
+ unsigned long timer = hardclock();
+ ((void) data);
+ *olen = 0;
+
+ if( len < sizeof(unsigned long) )
+ return( 0 );
+
+ memcpy( output, &timer, sizeof(unsigned long) );
+ *olen = sizeof(unsigned long);
+
+ return( 0 );
+}
+#endif
+
+#if defined(POLARSSL_HAVEGE_C)
+int havege_poll( void *data,
+ unsigned char *output, size_t len, size_t *olen )
+{
+ havege_state *hs = (havege_state *) data;
+ *olen = 0;
+
+ if( havege_random( hs, output, len ) != 0 )
+ return POLARSSL_ERR_ENTROPY_SOURCE_FAILED;
+
+ *olen = len;
+
+ return( 0 );
+}
+#endif
+
+#endif /* POLARSSL_ENTROPY_C */
--- /dev/null
+/*
+ * Error message information
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "polarssl/config.h"
+
+#if defined(POLARSSL_ERROR_C)
+
+#if defined(POLARSSL_AES_C)
+#include "polarssl/aes.h"
+#endif
+
+#if defined(POLARSSL_BASE64_C)
+#include "polarssl/base64.h"
+#endif
+
+#if defined(POLARSSL_BIGNUM_C)
+#include "polarssl/bignum.h"
+#endif
+
+#if defined(POLARSSL_CAMELLIA_C)
+#include "polarssl/camellia.h"
+#endif
+
+#if defined(POLARSSL_CIPHER_C)
+#include "polarssl/cipher.h"
+#endif
+
+#if defined(POLARSSL_CTR_DRBG_C)
+#include "polarssl/ctr_drbg.h"
+#endif
+
+#if defined(POLARSSL_DES_C)
+#include "polarssl/des.h"
+#endif
+
+#if defined(POLARSSL_DHM_C)
+#include "polarssl/dhm.h"
+#endif
+
+#if defined(POLARSSL_ENTROPY_C)
+#include "polarssl/entropy.h"
+#endif
+
+#if defined(POLARSSL_MD_C)
+#include "polarssl/md.h"
+#endif
+
+#if defined(POLARSSL_MD2_C)
+#include "polarssl/md2.h"
+#endif
+
+#if defined(POLARSSL_MD4_C)
+#include "polarssl/md4.h"
+#endif
+
+#if defined(POLARSSL_MD5_C)
+#include "polarssl/md5.h"
+#endif
+
+#if defined(POLARSSL_NET_C)
+#include "polarssl/net.h"
+#endif
+
+#if defined(POLARSSL_PADLOCK_C)
+#include "polarssl/padlock.h"
+#endif
+
+#if defined(POLARSSL_PEM_C)
+#include "polarssl/pem.h"
+#endif
+
+#if defined(POLARSSL_RSA_C)
+#include "polarssl/rsa.h"
+#endif
+
+#if defined(POLARSSL_SHA1_C)
+#include "polarssl/sha1.h"
+#endif
+
+#if defined(POLARSSL_SHA2_C)
+#include "polarssl/sha2.h"
+#endif
+
+#if defined(POLARSSL_SHA4_C)
+#include "polarssl/sha4.h"
+#endif
+
+#if defined(POLARSSL_SSL_TLS_C)
+#include "polarssl/ssl.h"
+#endif
+
+#if defined(POLARSSL_X509_PARSE_C)
+#include "polarssl/x509.h"
+#endif
+
+#if defined(POLARSSL_XTEA_C)
+#include "polarssl/xtea.h"
+#endif
+
+
+#include <string.h>
+
+#if defined _MSC_VER && !defined snprintf
+#define snprintf _snprintf
+#endif
+
+void error_strerror( int ret, char *buf, size_t buflen )
+{
+ size_t len;
+ int use_ret;
+
+ memset( buf, 0x00, buflen );
+
+ if( ret < 0 )
+ ret = -ret;
+
+ if( ret & 0xFF80 )
+ {
+ use_ret = ret & 0xFF80;
+
+ // High level error codes
+ //
+#if defined(POLARSSL_CIPHER_C)
+ if( use_ret == -(POLARSSL_ERR_CIPHER_FEATURE_UNAVAILABLE) )
+ snprintf( buf, buflen, "CIPHER - The selected feature is not available" );
+ if( use_ret == -(POLARSSL_ERR_CIPHER_BAD_INPUT_DATA) )
+ snprintf( buf, buflen, "CIPHER - Bad input parameters to function" );
+ if( use_ret == -(POLARSSL_ERR_CIPHER_ALLOC_FAILED) )
+ snprintf( buf, buflen, "CIPHER - Failed to allocate memory" );
+ if( use_ret == -(POLARSSL_ERR_CIPHER_INVALID_PADDING) )
+ snprintf( buf, buflen, "CIPHER - Input data contains invalid padding and is rejected" );
+ if( use_ret == -(POLARSSL_ERR_CIPHER_FULL_BLOCK_EXPECTED) )
+ snprintf( buf, buflen, "CIPHER - Decryption of block requires a full block" );
+#endif /* POLARSSL_CIPHER_C */
+
+#if defined(POLARSSL_DHM_C)
+ if( use_ret == -(POLARSSL_ERR_DHM_BAD_INPUT_DATA) )
+ snprintf( buf, buflen, "DHM - Bad input parameters to function" );
+ if( use_ret == -(POLARSSL_ERR_DHM_READ_PARAMS_FAILED) )
+ snprintf( buf, buflen, "DHM - Reading of the DHM parameters failed" );
+ if( use_ret == -(POLARSSL_ERR_DHM_MAKE_PARAMS_FAILED) )
+ snprintf( buf, buflen, "DHM - Making of the DHM parameters failed" );
+ if( use_ret == -(POLARSSL_ERR_DHM_READ_PUBLIC_FAILED) )
+ snprintf( buf, buflen, "DHM - Reading of the public values failed" );
+ if( use_ret == -(POLARSSL_ERR_DHM_MAKE_PUBLIC_FAILED) )
+ snprintf( buf, buflen, "DHM - Makeing of the public value failed" );
+ if( use_ret == -(POLARSSL_ERR_DHM_CALC_SECRET_FAILED) )
+ snprintf( buf, buflen, "DHM - Calculation of the DHM secret failed" );
+#endif /* POLARSSL_DHM_C */
+
+#if defined(POLARSSL_MD_C)
+ if( use_ret == -(POLARSSL_ERR_MD_FEATURE_UNAVAILABLE) )
+ snprintf( buf, buflen, "MD - The selected feature is not available" );
+ if( use_ret == -(POLARSSL_ERR_MD_BAD_INPUT_DATA) )
+ snprintf( buf, buflen, "MD - Bad input parameters to function" );
+ if( use_ret == -(POLARSSL_ERR_MD_ALLOC_FAILED) )
+ snprintf( buf, buflen, "MD - Failed to allocate memory" );
+ if( use_ret == -(POLARSSL_ERR_MD_FILE_IO_ERROR) )
+ snprintf( buf, buflen, "MD - Opening or reading of file failed" );
+#endif /* POLARSSL_MD_C */
+
+#if defined(POLARSSL_PEM_C)
+ if( use_ret == -(POLARSSL_ERR_PEM_NO_HEADER_PRESENT) )
+ snprintf( buf, buflen, "PEM - No PEM header found" );
+ if( use_ret == -(POLARSSL_ERR_PEM_INVALID_DATA) )
+ snprintf( buf, buflen, "PEM - PEM string is not as expected" );
+ if( use_ret == -(POLARSSL_ERR_PEM_MALLOC_FAILED) )
+ snprintf( buf, buflen, "PEM - Failed to allocate memory" );
+ if( use_ret == -(POLARSSL_ERR_PEM_INVALID_ENC_IV) )
+ snprintf( buf, buflen, "PEM - RSA IV is not in hex-format" );
+ if( use_ret == -(POLARSSL_ERR_PEM_UNKNOWN_ENC_ALG) )
+ snprintf( buf, buflen, "PEM - Unsupported key encryption algorithm" );
+ if( use_ret == -(POLARSSL_ERR_PEM_PASSWORD_REQUIRED) )
+ snprintf( buf, buflen, "PEM - Private key password can't be empty" );
+ if( use_ret == -(POLARSSL_ERR_PEM_PASSWORD_MISMATCH) )
+ snprintf( buf, buflen, "PEM - Given private key password does not allow for correct decryption" );
+ if( use_ret == -(POLARSSL_ERR_PEM_FEATURE_UNAVAILABLE) )
+ snprintf( buf, buflen, "PEM - Unavailable feature, e.g. hashing/encryption combination" );
+#endif /* POLARSSL_PEM_C */
+
+#if defined(POLARSSL_RSA_C)
+ if( use_ret == -(POLARSSL_ERR_RSA_BAD_INPUT_DATA) )
+ snprintf( buf, buflen, "RSA - Bad input parameters to function" );
+ if( use_ret == -(POLARSSL_ERR_RSA_INVALID_PADDING) )
+ snprintf( buf, buflen, "RSA - Input data contains invalid padding and is rejected" );
+ if( use_ret == -(POLARSSL_ERR_RSA_KEY_GEN_FAILED) )
+ snprintf( buf, buflen, "RSA - Something failed during generation of a key" );
+ if( use_ret == -(POLARSSL_ERR_RSA_KEY_CHECK_FAILED) )
+ snprintf( buf, buflen, "RSA - Key failed to pass the libraries validity check" );
+ if( use_ret == -(POLARSSL_ERR_RSA_PUBLIC_FAILED) )
+ snprintf( buf, buflen, "RSA - The public key operation failed" );
+ if( use_ret == -(POLARSSL_ERR_RSA_PRIVATE_FAILED) )
+ snprintf( buf, buflen, "RSA - The private key operation failed" );
+ if( use_ret == -(POLARSSL_ERR_RSA_VERIFY_FAILED) )
+ snprintf( buf, buflen, "RSA - The PKCS#1 verification failed" );
+ if( use_ret == -(POLARSSL_ERR_RSA_OUTPUT_TOO_LARGE) )
+ snprintf( buf, buflen, "RSA - The output buffer for decryption is not large enough" );
+ if( use_ret == -(POLARSSL_ERR_RSA_RNG_FAILED) )
+ snprintf( buf, buflen, "RSA - The random generator failed to generate non-zeros" );
+#endif /* POLARSSL_RSA_C */
+
+#if defined(POLARSSL_SSL_TLS_C)
+ if( use_ret == -(POLARSSL_ERR_SSL_FEATURE_UNAVAILABLE) )
+ snprintf( buf, buflen, "SSL - The requested feature is not available" );
+ if( use_ret == -(POLARSSL_ERR_SSL_BAD_INPUT_DATA) )
+ snprintf( buf, buflen, "SSL - Bad input parameters to function" );
+ if( use_ret == -(POLARSSL_ERR_SSL_INVALID_MAC) )
+ snprintf( buf, buflen, "SSL - Verification of the message MAC failed" );
+ if( use_ret == -(POLARSSL_ERR_SSL_INVALID_RECORD) )
+ snprintf( buf, buflen, "SSL - An invalid SSL record was received" );
+ if( use_ret == -(POLARSSL_ERR_SSL_CONN_EOF) )
+ snprintf( buf, buflen, "SSL - The connection indicated an EOF" );
+ if( use_ret == -(POLARSSL_ERR_SSL_UNKNOWN_CIPHER) )
+ snprintf( buf, buflen, "SSL - An unknown cipher was received" );
+ if( use_ret == -(POLARSSL_ERR_SSL_NO_CIPHER_CHOSEN) )
+ snprintf( buf, buflen, "SSL - The server has no ciphersuites in common with the client" );
+ if( use_ret == -(POLARSSL_ERR_SSL_NO_SESSION_FOUND) )
+ snprintf( buf, buflen, "SSL - No session to recover was found" );
+ if( use_ret == -(POLARSSL_ERR_SSL_NO_CLIENT_CERTIFICATE) )
+ snprintf( buf, buflen, "SSL - No client certification received from the client, but required by the authentication mode" );
+ if( use_ret == -(POLARSSL_ERR_SSL_CERTIFICATE_TOO_LARGE) )
+ snprintf( buf, buflen, "SSL - DESCRIPTION MISSING" );
+ if( use_ret == -(POLARSSL_ERR_SSL_CERTIFICATE_REQUIRED) )
+ snprintf( buf, buflen, "SSL - The own certificate is not set, but needed by the server" );
+ if( use_ret == -(POLARSSL_ERR_SSL_PRIVATE_KEY_REQUIRED) )
+ snprintf( buf, buflen, "SSL - The own private key is not set, but needed" );
+ if( use_ret == -(POLARSSL_ERR_SSL_CA_CHAIN_REQUIRED) )
+ snprintf( buf, buflen, "SSL - No CA Chain is set, but required to operate" );
+ if( use_ret == -(POLARSSL_ERR_SSL_UNEXPECTED_MESSAGE) )
+ snprintf( buf, buflen, "SSL - An unexpected message was received from our peer" );
+ if( use_ret == -(POLARSSL_ERR_SSL_FATAL_ALERT_MESSAGE) )
+ snprintf( buf, buflen, "SSL - A fatal alert message was received from our peer" );
+ if( use_ret == -(POLARSSL_ERR_SSL_PEER_VERIFY_FAILED) )
+ snprintf( buf, buflen, "SSL - Verification of our peer failed" );
+ if( use_ret == -(POLARSSL_ERR_SSL_PEER_CLOSE_NOTIFY) )
+ snprintf( buf, buflen, "SSL - The peer notified us that the connection is going to be closed" );
+ if( use_ret == -(POLARSSL_ERR_SSL_BAD_HS_CLIENT_HELLO) )
+ snprintf( buf, buflen, "SSL - Processing of the ClientHello handshake message failed" );
+ if( use_ret == -(POLARSSL_ERR_SSL_BAD_HS_SERVER_HELLO) )
+ snprintf( buf, buflen, "SSL - Processing of the ServerHello handshake message failed" );
+ if( use_ret == -(POLARSSL_ERR_SSL_BAD_HS_CERTIFICATE) )
+ snprintf( buf, buflen, "SSL - Processing of the Certificate handshake message failed" );
+ if( use_ret == -(POLARSSL_ERR_SSL_BAD_HS_CERTIFICATE_REQUEST) )
+ snprintf( buf, buflen, "SSL - Processing of the CertificateRequest handshake message failed" );
+ if( use_ret == -(POLARSSL_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE) )
+ snprintf( buf, buflen, "SSL - Processing of the ServerKeyExchange handshake message failed" );
+ if( use_ret == -(POLARSSL_ERR_SSL_BAD_HS_SERVER_HELLO_DONE) )
+ snprintf( buf, buflen, "SSL - Processing of the ServerHelloDone handshake message failed" );
+ if( use_ret == -(POLARSSL_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE) )
+ snprintf( buf, buflen, "SSL - Processing of the ClientKeyExchange handshake message failed" );
+ if( use_ret == -(POLARSSL_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_DHM_RP) )
+ snprintf( buf, buflen, "SSL - Processing of the ClientKeyExchange handshake message failed in DHM Read Public" );
+ if( use_ret == -(POLARSSL_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_DHM_CS) )
+ snprintf( buf, buflen, "SSL - Processing of the ClientKeyExchange handshake message failed in DHM Calculate Secret" );
+ if( use_ret == -(POLARSSL_ERR_SSL_BAD_HS_CERTIFICATE_VERIFY) )
+ snprintf( buf, buflen, "SSL - Processing of the CertificateVerify handshake message failed" );
+ if( use_ret == -(POLARSSL_ERR_SSL_BAD_HS_CHANGE_CIPHER_SPEC) )
+ snprintf( buf, buflen, "SSL - Processing of the ChangeCipherSpec handshake message failed" );
+ if( use_ret == -(POLARSSL_ERR_SSL_BAD_HS_FINISHED) )
+ snprintf( buf, buflen, "SSL - Processing of the Finished handshake message failed" );
+ if( use_ret == -(POLARSSL_ERR_SSL_MALLOC_FAILED) )
+ snprintf( buf, buflen, "SSL - Memory allocation failed" );
+#endif /* POLARSSL_SSL_TLS_C */
+
+#if defined(POLARSSL_X509_PARSE_C)
+ if( use_ret == -(POLARSSL_ERR_X509_FEATURE_UNAVAILABLE) )
+ snprintf( buf, buflen, "X509 - Unavailable feature, e.g. RSA hashing/encryption combination" );
+ if( use_ret == -(POLARSSL_ERR_X509_CERT_INVALID_PEM) )
+ snprintf( buf, buflen, "X509 - The PEM-encoded certificate contains invalid elements, e.g. invalid character" );
+ if( use_ret == -(POLARSSL_ERR_X509_CERT_INVALID_FORMAT) )
+ snprintf( buf, buflen, "X509 - The certificate format is invalid, e.g. different type expected" );
+ if( use_ret == -(POLARSSL_ERR_X509_CERT_INVALID_VERSION) )
+ snprintf( buf, buflen, "X509 - The certificate version element is invalid" );
+ if( use_ret == -(POLARSSL_ERR_X509_CERT_INVALID_SERIAL) )
+ snprintf( buf, buflen, "X509 - The serial tag or value is invalid" );
+ if( use_ret == -(POLARSSL_ERR_X509_CERT_INVALID_ALG) )
+ snprintf( buf, buflen, "X509 - The algorithm tag or value is invalid" );
+ if( use_ret == -(POLARSSL_ERR_X509_CERT_INVALID_NAME) )
+ snprintf( buf, buflen, "X509 - The name tag or value is invalid" );
+ if( use_ret == -(POLARSSL_ERR_X509_CERT_INVALID_DATE) )
+ snprintf( buf, buflen, "X509 - The date tag or value is invalid" );
+ if( use_ret == -(POLARSSL_ERR_X509_CERT_INVALID_PUBKEY) )
+ snprintf( buf, buflen, "X509 - The pubkey tag or value is invalid (only RSA is supported)" );
+ if( use_ret == -(POLARSSL_ERR_X509_CERT_INVALID_SIGNATURE) )
+ snprintf( buf, buflen, "X509 - The signature tag or value invalid" );
+ if( use_ret == -(POLARSSL_ERR_X509_CERT_INVALID_EXTENSIONS) )
+ snprintf( buf, buflen, "X509 - The extension tag or value is invalid" );
+ if( use_ret == -(POLARSSL_ERR_X509_CERT_UNKNOWN_VERSION) )
+ snprintf( buf, buflen, "X509 - Certificate or CRL has an unsupported version number" );
+ if( use_ret == -(POLARSSL_ERR_X509_CERT_UNKNOWN_SIG_ALG) )
+ snprintf( buf, buflen, "X509 - Signature algorithm (oid) is unsupported" );
+ if( use_ret == -(POLARSSL_ERR_X509_UNKNOWN_PK_ALG) )
+ snprintf( buf, buflen, "X509 - Key algorithm is unsupported (only RSA is supported)" );
+ if( use_ret == -(POLARSSL_ERR_X509_CERT_SIG_MISMATCH) )
+ snprintf( buf, buflen, "X509 - Certificate signature algorithms do not match. (see \\c ::x509_cert sig_oid)" );
+ if( use_ret == -(POLARSSL_ERR_X509_CERT_VERIFY_FAILED) )
+ snprintf( buf, buflen, "X509 - Certificate verification failed, e.g. CRL, CA or signature check failed" );
+ if( use_ret == -(POLARSSL_ERR_X509_KEY_INVALID_VERSION) )
+ snprintf( buf, buflen, "X509 - Unsupported RSA key version" );
+ if( use_ret == -(POLARSSL_ERR_X509_KEY_INVALID_FORMAT) )
+ snprintf( buf, buflen, "X509 - Invalid RSA key tag or value" );
+ if( use_ret == -(POLARSSL_ERR_X509_CERT_UNKNOWN_FORMAT) )
+ snprintf( buf, buflen, "X509 - Format not recognized as DER or PEM" );
+ if( use_ret == -(POLARSSL_ERR_X509_INVALID_INPUT) )
+ snprintf( buf, buflen, "X509 - Input invalid" );
+ if( use_ret == -(POLARSSL_ERR_X509_MALLOC_FAILED) )
+ snprintf( buf, buflen, "X509 - Allocation of memory failed" );
+ if( use_ret == -(POLARSSL_ERR_X509_FILE_IO_ERROR) )
+ snprintf( buf, buflen, "X509 - Read/write of file failed" );
+#endif /* POLARSSL_X509_PARSE_C */
+
+ if( strlen( buf ) == 0 )
+ snprintf( buf, buflen, "UNKNOWN ERROR CODE (%04X)", use_ret );
+ }
+
+ use_ret = ret & ~0xFF80;
+
+ if( use_ret == 0 )
+ return;
+
+ // If high level code is present, make a concatenation between both
+ // error strings.
+ //
+ len = strlen( buf );
+
+ if( len > 0 )
+ {
+ if( buflen - len < 5 )
+ return;
+
+ snprintf( buf + len, buflen - len, " : " );
+
+ buf += len + 3;
+ buflen -= len + 3;
+ }
+
+ // Low level error codes
+ //
+#if defined(POLARSSL_AES_C)
+ if( use_ret == -(POLARSSL_ERR_AES_INVALID_KEY_LENGTH) )
+ snprintf( buf, buflen, "AES - Invalid key length" );
+ if( use_ret == -(POLARSSL_ERR_AES_INVALID_INPUT_LENGTH) )
+ snprintf( buf, buflen, "AES - Invalid data input length" );
+#endif /* POLARSSL_AES_C */
+
+#if defined(POLARSSL_ASN1_PARSE_C)
+ if( use_ret == -(POLARSSL_ERR_ASN1_OUT_OF_DATA) )
+ snprintf( buf, buflen, "ASN1 - Out of data when parsing an ASN1 data structure" );
+ if( use_ret == -(POLARSSL_ERR_ASN1_UNEXPECTED_TAG) )
+ snprintf( buf, buflen, "ASN1 - ASN1 tag was of an unexpected value" );
+ if( use_ret == -(POLARSSL_ERR_ASN1_INVALID_LENGTH) )
+ snprintf( buf, buflen, "ASN1 - Error when trying to determine the length or invalid length" );
+ if( use_ret == -(POLARSSL_ERR_ASN1_LENGTH_MISMATCH) )
+ snprintf( buf, buflen, "ASN1 - Actual length differs from expected length" );
+ if( use_ret == -(POLARSSL_ERR_ASN1_INVALID_DATA) )
+ snprintf( buf, buflen, "ASN1 - Data is invalid. (not used)" );
+ if( use_ret == -(POLARSSL_ERR_ASN1_MALLOC_FAILED) )
+ snprintf( buf, buflen, "ASN1 - Memory allocation failed" );
+#endif /* POLARSSL_ASN1_PARSE_C */
+
+#if defined(POLARSSL_BASE64_C)
+ if( use_ret == -(POLARSSL_ERR_BASE64_BUFFER_TOO_SMALL) )
+ snprintf( buf, buflen, "BASE64 - Output buffer too small" );
+ if( use_ret == -(POLARSSL_ERR_BASE64_INVALID_CHARACTER) )
+ snprintf( buf, buflen, "BASE64 - Invalid character in input" );
+#endif /* POLARSSL_BASE64_C */
+
+#if defined(POLARSSL_BIGNUM_C)
+ if( use_ret == -(POLARSSL_ERR_MPI_FILE_IO_ERROR) )
+ snprintf( buf, buflen, "BIGNUM - An error occurred while reading from or writing to a file" );
+ if( use_ret == -(POLARSSL_ERR_MPI_BAD_INPUT_DATA) )
+ snprintf( buf, buflen, "BIGNUM - Bad input parameters to function" );
+ if( use_ret == -(POLARSSL_ERR_MPI_INVALID_CHARACTER) )
+ snprintf( buf, buflen, "BIGNUM - There is an invalid character in the digit string" );
+ if( use_ret == -(POLARSSL_ERR_MPI_BUFFER_TOO_SMALL) )
+ snprintf( buf, buflen, "BIGNUM - The buffer is too small to write to" );
+ if( use_ret == -(POLARSSL_ERR_MPI_NEGATIVE_VALUE) )
+ snprintf( buf, buflen, "BIGNUM - The input arguments are negative or result in illegal output" );
+ if( use_ret == -(POLARSSL_ERR_MPI_DIVISION_BY_ZERO) )
+ snprintf( buf, buflen, "BIGNUM - The input argument for division is zero, which is not allowed" );
+ if( use_ret == -(POLARSSL_ERR_MPI_NOT_ACCEPTABLE) )
+ snprintf( buf, buflen, "BIGNUM - The input arguments are not acceptable" );
+ if( use_ret == -(POLARSSL_ERR_MPI_MALLOC_FAILED) )
+ snprintf( buf, buflen, "BIGNUM - Memory allocation failed" );
+#endif /* POLARSSL_BIGNUM_C */
+
+#if defined(POLARSSL_CAMELLIA_C)
+ if( use_ret == -(POLARSSL_ERR_CAMELLIA_INVALID_KEY_LENGTH) )
+ snprintf( buf, buflen, "CAMELLIA - Invalid key length" );
+ if( use_ret == -(POLARSSL_ERR_CAMELLIA_INVALID_INPUT_LENGTH) )
+ snprintf( buf, buflen, "CAMELLIA - Invalid data input length" );
+#endif /* POLARSSL_CAMELLIA_C */
+
+#if defined(POLARSSL_CTR_DRBG_C)
+ if( use_ret == -(POLARSSL_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED) )
+ snprintf( buf, buflen, "CTR_DRBG - The entropy source failed" );
+ if( use_ret == -(POLARSSL_ERR_CTR_DRBG_REQUEST_TOO_BIG) )
+ snprintf( buf, buflen, "CTR_DRBG - Too many random requested in single call" );
+ if( use_ret == -(POLARSSL_ERR_CTR_DRBG_INPUT_TOO_BIG) )
+ snprintf( buf, buflen, "CTR_DRBG - Input too large (Entropy + additional)" );
+ if( use_ret == -(POLARSSL_ERR_CTR_DRBG_FILE_IO_ERROR) )
+ snprintf( buf, buflen, "CTR_DRBG - Read/write error in file" );
+#endif /* POLARSSL_CTR_DRBG_C */
+
+#if defined(POLARSSL_DES_C)
+ if( use_ret == -(POLARSSL_ERR_DES_INVALID_INPUT_LENGTH) )
+ snprintf( buf, buflen, "DES - The data input has an invalid length" );
+#endif /* POLARSSL_DES_C */
+
+#if defined(POLARSSL_ENTROPY_C)
+ if( use_ret == -(POLARSSL_ERR_ENTROPY_SOURCE_FAILED) )
+ snprintf( buf, buflen, "ENTROPY - Critical entropy source failure" );
+ if( use_ret == -(POLARSSL_ERR_ENTROPY_MAX_SOURCES) )
+ snprintf( buf, buflen, "ENTROPY - No more sources can be added" );
+ if( use_ret == -(POLARSSL_ERR_ENTROPY_NO_SOURCES_DEFINED) )
+ snprintf( buf, buflen, "ENTROPY - No sources have been added to poll" );
+#endif /* POLARSSL_ENTROPY_C */
+
+#if defined(POLARSSL_MD2_C)
+ if( use_ret == -(POLARSSL_ERR_MD2_FILE_IO_ERROR) )
+ snprintf( buf, buflen, "MD2 - Read/write error in file" );
+#endif /* POLARSSL_MD2_C */
+
+#if defined(POLARSSL_MD4_C)
+ if( use_ret == -(POLARSSL_ERR_MD4_FILE_IO_ERROR) )
+ snprintf( buf, buflen, "MD4 - Read/write error in file" );
+#endif /* POLARSSL_MD4_C */
+
+#if defined(POLARSSL_MD5_C)
+ if( use_ret == -(POLARSSL_ERR_MD5_FILE_IO_ERROR) )
+ snprintf( buf, buflen, "MD5 - Read/write error in file" );
+#endif /* POLARSSL_MD5_C */
+
+#if defined(POLARSSL_NET_C)
+ if( use_ret == -(POLARSSL_ERR_NET_UNKNOWN_HOST) )
+ snprintf( buf, buflen, "NET - Failed to get an IP address for the given hostname" );
+ if( use_ret == -(POLARSSL_ERR_NET_SOCKET_FAILED) )
+ snprintf( buf, buflen, "NET - Failed to open a socket" );
+ if( use_ret == -(POLARSSL_ERR_NET_CONNECT_FAILED) )
+ snprintf( buf, buflen, "NET - The connection to the given server / port failed" );
+ if( use_ret == -(POLARSSL_ERR_NET_BIND_FAILED) )
+ snprintf( buf, buflen, "NET - Binding of the socket failed" );
+ if( use_ret == -(POLARSSL_ERR_NET_LISTEN_FAILED) )
+ snprintf( buf, buflen, "NET - Could not listen on the socket" );
+ if( use_ret == -(POLARSSL_ERR_NET_ACCEPT_FAILED) )
+ snprintf( buf, buflen, "NET - Could not accept the incoming connection" );
+ if( use_ret == -(POLARSSL_ERR_NET_RECV_FAILED) )
+ snprintf( buf, buflen, "NET - Reading information from the socket failed" );
+ if( use_ret == -(POLARSSL_ERR_NET_SEND_FAILED) )
+ snprintf( buf, buflen, "NET - Sending information through the socket failed" );
+ if( use_ret == -(POLARSSL_ERR_NET_CONN_RESET) )
+ snprintf( buf, buflen, "NET - Connection was reset by peer" );
+ if( use_ret == -(POLARSSL_ERR_NET_WANT_READ) )
+ snprintf( buf, buflen, "NET - Connection requires a read call" );
+ if( use_ret == -(POLARSSL_ERR_NET_WANT_WRITE) )
+ snprintf( buf, buflen, "NET - Connection requires a write call" );
+#endif /* POLARSSL_NET_C */
+
+#if defined(POLARSSL_PADLOCK_C)
+ if( use_ret == -(POLARSSL_ERR_PADLOCK_DATA_MISALIGNED) )
+ snprintf( buf, buflen, "PADLOCK - Input data should be aligned" );
+#endif /* POLARSSL_PADLOCK_C */
+
+#if defined(POLARSSL_SHA1_C)
+ if( use_ret == -(POLARSSL_ERR_SHA1_FILE_IO_ERROR) )
+ snprintf( buf, buflen, "SHA1 - Read/write error in file" );
+#endif /* POLARSSL_SHA1_C */
+
+#if defined(POLARSSL_SHA2_C)
+ if( use_ret == -(POLARSSL_ERR_SHA2_FILE_IO_ERROR) )
+ snprintf( buf, buflen, "SHA2 - Read/write error in file" );
+#endif /* POLARSSL_SHA2_C */
+
+#if defined(POLARSSL_SHA4_C)
+ if( use_ret == -(POLARSSL_ERR_SHA4_FILE_IO_ERROR) )
+ snprintf( buf, buflen, "SHA4 - Read/write error in file" );
+#endif /* POLARSSL_SHA4_C */
+
+#if defined(POLARSSL_XTEA_C)
+ if( use_ret == -(POLARSSL_ERR_XTEA_INVALID_INPUT_LENGTH) )
+ snprintf( buf, buflen, "XTEA - The data input has an invalid length" );
+#endif /* POLARSSL_XTEA_C */
+
+ if( strlen( buf ) != 0 )
+ return;
+
+ snprintf( buf, buflen, "UNKNOWN ERROR CODE (%04X)", use_ret );
+}
+
+#endif /* POLARSSL_VERBOSE_ERROR */
--- /dev/null
+/**
+ * \brief HAVEGE: HArdware Volatile Entropy Gathering and Expansion
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+/*
+ * The HAVEGE RNG was designed by Andre Seznec in 2002.
+ *
+ * http://www.irisa.fr/caps/projects/hipsor/publi.php
+ *
+ * Contact: seznec(at)irisa_dot_fr - orocheco(at)irisa_dot_fr
+ */
+
+#include "polarssl/config.h"
+
+#if defined(POLARSSL_HAVEGE_C)
+
+#include "polarssl/havege.h"
+#include "polarssl/timing.h"
+
+#include <string.h>
+#include <time.h>
+
+/* ------------------------------------------------------------------------
+ * On average, one iteration accesses two 8-word blocks in the havege WALK
+ * table, and generates 16 words in the RES array.
+ *
+ * The data read in the WALK table is updated and permuted after each use.
+ * The result of the hardware clock counter read is used for this update.
+ *
+ * 25 conditional tests are present. The conditional tests are grouped in
+ * two nested groups of 12 conditional tests and 1 test that controls the
+ * permutation; on average, there should be 6 tests executed and 3 of them
+ * should be mispredicted.
+ * ------------------------------------------------------------------------
+ */
+
+#define SWAP(X,Y) { int *T = X; X = Y; Y = T; }
+
+#define TST1_ENTER if( PTEST & 1 ) { PTEST ^= 3; PTEST >>= 1;
+#define TST2_ENTER if( PTEST & 1 ) { PTEST ^= 3; PTEST >>= 1;
+
+#define TST1_LEAVE U1++; }
+#define TST2_LEAVE U2++; }
+
+#define ONE_ITERATION \
+ \
+ PTEST = PT1 >> 20; \
+ \
+ TST1_ENTER TST1_ENTER TST1_ENTER TST1_ENTER \
+ TST1_ENTER TST1_ENTER TST1_ENTER TST1_ENTER \
+ TST1_ENTER TST1_ENTER TST1_ENTER TST1_ENTER \
+ \
+ TST1_LEAVE TST1_LEAVE TST1_LEAVE TST1_LEAVE \
+ TST1_LEAVE TST1_LEAVE TST1_LEAVE TST1_LEAVE \
+ TST1_LEAVE TST1_LEAVE TST1_LEAVE TST1_LEAVE \
+ \
+ PTX = (PT1 >> 18) & 7; \
+ PT1 &= 0x1FFF; \
+ PT2 &= 0x1FFF; \
+ CLK = (int) hardclock(); \
+ \
+ i = 0; \
+ A = &WALK[PT1 ]; RES[i++] ^= *A; \
+ B = &WALK[PT2 ]; RES[i++] ^= *B; \
+ C = &WALK[PT1 ^ 1]; RES[i++] ^= *C; \
+ D = &WALK[PT2 ^ 4]; RES[i++] ^= *D; \
+ \
+ IN = (*A >> (1)) ^ (*A << (31)) ^ CLK; \
+ *A = (*B >> (2)) ^ (*B << (30)) ^ CLK; \
+ *B = IN ^ U1; \
+ *C = (*C >> (3)) ^ (*C << (29)) ^ CLK; \
+ *D = (*D >> (4)) ^ (*D << (28)) ^ CLK; \
+ \
+ A = &WALK[PT1 ^ 2]; RES[i++] ^= *A; \
+ B = &WALK[PT2 ^ 2]; RES[i++] ^= *B; \
+ C = &WALK[PT1 ^ 3]; RES[i++] ^= *C; \
+ D = &WALK[PT2 ^ 6]; RES[i++] ^= *D; \
+ \
+ if( PTEST & 1 ) SWAP( A, C ); \
+ \
+ IN = (*A >> (5)) ^ (*A << (27)) ^ CLK; \
+ *A = (*B >> (6)) ^ (*B << (26)) ^ CLK; \
+ *B = IN; CLK = (int) hardclock(); \
+ *C = (*C >> (7)) ^ (*C << (25)) ^ CLK; \
+ *D = (*D >> (8)) ^ (*D << (24)) ^ CLK; \
+ \
+ A = &WALK[PT1 ^ 4]; \
+ B = &WALK[PT2 ^ 1]; \
+ \
+ PTEST = PT2 >> 1; \
+ \
+ PT2 = (RES[(i - 8) ^ PTY] ^ WALK[PT2 ^ PTY ^ 7]); \
+ PT2 = ((PT2 & 0x1FFF) & (~8)) ^ ((PT1 ^ 8) & 0x8); \
+ PTY = (PT2 >> 10) & 7; \
+ \
+ TST2_ENTER TST2_ENTER TST2_ENTER TST2_ENTER \
+ TST2_ENTER TST2_ENTER TST2_ENTER TST2_ENTER \
+ TST2_ENTER TST2_ENTER TST2_ENTER TST2_ENTER \
+ \
+ TST2_LEAVE TST2_LEAVE TST2_LEAVE TST2_LEAVE \
+ TST2_LEAVE TST2_LEAVE TST2_LEAVE TST2_LEAVE \
+ TST2_LEAVE TST2_LEAVE TST2_LEAVE TST2_LEAVE \
+ \
+ C = &WALK[PT1 ^ 5]; \
+ D = &WALK[PT2 ^ 5]; \
+ \
+ RES[i++] ^= *A; \
+ RES[i++] ^= *B; \
+ RES[i++] ^= *C; \
+ RES[i++] ^= *D; \
+ \
+ IN = (*A >> ( 9)) ^ (*A << (23)) ^ CLK; \
+ *A = (*B >> (10)) ^ (*B << (22)) ^ CLK; \
+ *B = IN ^ U2; \
+ *C = (*C >> (11)) ^ (*C << (21)) ^ CLK; \
+ *D = (*D >> (12)) ^ (*D << (20)) ^ CLK; \
+ \
+ A = &WALK[PT1 ^ 6]; RES[i++] ^= *A; \
+ B = &WALK[PT2 ^ 3]; RES[i++] ^= *B; \
+ C = &WALK[PT1 ^ 7]; RES[i++] ^= *C; \
+ D = &WALK[PT2 ^ 7]; RES[i++] ^= *D; \
+ \
+ IN = (*A >> (13)) ^ (*A << (19)) ^ CLK; \
+ *A = (*B >> (14)) ^ (*B << (18)) ^ CLK; \
+ *B = IN; \
+ *C = (*C >> (15)) ^ (*C << (17)) ^ CLK; \
+ *D = (*D >> (16)) ^ (*D << (16)) ^ CLK; \
+ \
+ PT1 = ( RES[(i - 8) ^ PTX] ^ \
+ WALK[PT1 ^ PTX ^ 7] ) & (~1); \
+ PT1 ^= (PT2 ^ 0x10) & 0x10; \
+ \
+ for( n++, i = 0; i < 16; i++ ) \
+ hs->pool[n % COLLECT_SIZE] ^= RES[i];
+
+/*
+ * Entropy gathering function
+ */
+static void havege_fill( havege_state *hs )
+{
+ int i, n = 0;
+ int U1, U2, *A, *B, *C, *D;
+ int PT1, PT2, *WALK, RES[16];
+ int PTX, PTY, CLK, PTEST, IN;
+
+ WALK = hs->WALK;
+ PT1 = hs->PT1;
+ PT2 = hs->PT2;
+
+ PTX = U1 = 0;
+ PTY = U2 = 0;
+
+ memset( RES, 0, sizeof( RES ) );
+
+ while( n < COLLECT_SIZE * 4 )
+ {
+ ONE_ITERATION
+ ONE_ITERATION
+ ONE_ITERATION
+ ONE_ITERATION
+ }
+
+ hs->PT1 = PT1;
+ hs->PT2 = PT2;
+
+ hs->offset[0] = 0;
+ hs->offset[1] = COLLECT_SIZE / 2;
+}
+
+/*
+ * HAVEGE initialization
+ */
+void havege_init( havege_state *hs )
+{
+ memset( hs, 0, sizeof( havege_state ) );
+
+ havege_fill( hs );
+}
+
+/*
+ * HAVEGE rand function
+ */
+int havege_random( void *p_rng, unsigned char *buf, size_t len )
+{
+ int val;
+ size_t use_len;
+ havege_state *hs = (havege_state *) p_rng;
+ unsigned char *p = buf;
+
+ while( len > 0 )
+ {
+ use_len = len;
+ if( use_len > sizeof(int) )
+ use_len = sizeof(int);
+
+ if( hs->offset[1] >= COLLECT_SIZE )
+ havege_fill( hs );
+
+ val = hs->pool[hs->offset[0]++];
+ val ^= hs->pool[hs->offset[1]++];
+
+ memcpy( p, &val, use_len );
+
+ len -= use_len;
+ p += use_len;
+ }
+
+ return( 0 );
+}
+
+#endif
--- /dev/null
+/**
+ * \file md.c
+ *
+ * \brief Generic message digest wrapper for PolarSSL
+ *
+ * \author Adriaan de Jong <dejong@fox-it.com>
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "polarssl/config.h"
+
+#if defined(POLARSSL_MD_C)
+
+#include "polarssl/md.h"
+#include "polarssl/md_wrap.h"
+
+#include <stdlib.h>
+
+#if defined _MSC_VER && !defined strcasecmp
+#define strcasecmp _stricmp
+#endif
+
+static const int supported_digests[] = {
+
+#if defined(POLARSSL_MD2_C)
+ POLARSSL_MD_MD2,
+#endif
+
+#if defined(POLARSSL_MD4_C)
+ POLARSSL_MD_MD4,
+#endif
+
+#if defined(POLARSSL_MD5_C)
+ POLARSSL_MD_MD5,
+#endif
+
+#if defined(POLARSSL_SHA1_C)
+ POLARSSL_MD_SHA1,
+#endif
+
+#if defined(POLARSSL_SHA2_C)
+ POLARSSL_MD_SHA224,
+ POLARSSL_MD_SHA256,
+#endif
+
+#if defined(POLARSSL_SHA4_C)
+ POLARSSL_MD_SHA384,
+ POLARSSL_MD_SHA512,
+#endif
+
+ 0
+};
+
+const int *md_list( void )
+{
+ return supported_digests;
+}
+
+const md_info_t *md_info_from_string( const char *md_name )
+{
+ if( NULL == md_name )
+ return NULL;
+
+ /* Get the appropriate digest information */
+#if defined(POLARSSL_MD2_C)
+ if( !strcasecmp( "MD2", md_name ) )
+ return md_info_from_type( POLARSSL_MD_MD2 );
+#endif
+#if defined(POLARSSL_MD4_C)
+ if( !strcasecmp( "MD4", md_name ) )
+ return md_info_from_type( POLARSSL_MD_MD4 );
+#endif
+#if defined(POLARSSL_MD5_C)
+ if( !strcasecmp( "MD5", md_name ) )
+ return md_info_from_type( POLARSSL_MD_MD5 );
+#endif
+#if defined(POLARSSL_SHA1_C)
+ if( !strcasecmp( "SHA1", md_name ) || !strcasecmp( "SHA", md_name ) )
+ return md_info_from_type( POLARSSL_MD_SHA1 );
+#endif
+#if defined(POLARSSL_SHA2_C)
+ if( !strcasecmp( "SHA224", md_name ) )
+ return md_info_from_type( POLARSSL_MD_SHA224 );
+ if( !strcasecmp( "SHA256", md_name ) )
+ return md_info_from_type( POLARSSL_MD_SHA256 );
+#endif
+#if defined(POLARSSL_SHA4_C)
+ if( !strcasecmp( "SHA384", md_name ) )
+ return md_info_from_type( POLARSSL_MD_SHA384 );
+ if( !strcasecmp( "SHA512", md_name ) )
+ return md_info_from_type( POLARSSL_MD_SHA512 );
+#endif
+ return NULL;
+}
+
+const md_info_t *md_info_from_type( md_type_t md_type )
+{
+ switch( md_type )
+ {
+#if defined(POLARSSL_MD2_C)
+ case POLARSSL_MD_MD2:
+ return &md2_info;
+#endif
+#if defined(POLARSSL_MD4_C)
+ case POLARSSL_MD_MD4:
+ return &md4_info;
+#endif
+#if defined(POLARSSL_MD5_C)
+ case POLARSSL_MD_MD5:
+ return &md5_info;
+#endif
+#if defined(POLARSSL_SHA1_C)
+ case POLARSSL_MD_SHA1:
+ return &sha1_info;
+#endif
+#if defined(POLARSSL_SHA2_C)
+ case POLARSSL_MD_SHA224:
+ return &sha224_info;
+ case POLARSSL_MD_SHA256:
+ return &sha256_info;
+#endif
+#if defined(POLARSSL_SHA4_C)
+ case POLARSSL_MD_SHA384:
+ return &sha384_info;
+ case POLARSSL_MD_SHA512:
+ return &sha512_info;
+#endif
+ default:
+ return NULL;
+ }
+}
+
+int md_init_ctx( md_context_t *ctx, const md_info_t *md_info )
+{
+ if( md_info == NULL )
+ return POLARSSL_ERR_MD_BAD_INPUT_DATA;
+
+ if( ctx == NULL || ctx->md_ctx != NULL )
+ return POLARSSL_ERR_MD_BAD_INPUT_DATA;
+
+ if( ( ctx->md_ctx = md_info->ctx_alloc_func() ) == NULL )
+ return POLARSSL_ERR_MD_ALLOC_FAILED;
+
+ ctx->md_info = md_info;
+
+ md_info->starts_func( ctx->md_ctx );
+
+ return 0;
+}
+
+int md_free_ctx( md_context_t *ctx )
+{
+ if( ctx == NULL || ctx->md_info == NULL )
+ return POLARSSL_ERR_MD_BAD_INPUT_DATA;
+
+ ctx->md_info->ctx_free_func( ctx->md_ctx );
+ ctx->md_ctx = NULL;
+
+ return 0;
+}
+
+int md_starts( md_context_t *ctx )
+{
+ if( ctx == NULL || ctx->md_info == NULL )
+ return POLARSSL_ERR_MD_BAD_INPUT_DATA;
+
+ ctx->md_info->starts_func( ctx->md_ctx );
+
+ return 0;
+}
+
+int md_update( md_context_t *ctx, const unsigned char *input, size_t ilen )
+{
+ if( ctx == NULL || ctx->md_info == NULL )
+ return POLARSSL_ERR_MD_BAD_INPUT_DATA;
+
+ ctx->md_info->update_func( ctx->md_ctx, input, ilen );
+
+ return 0;
+}
+
+int md_finish( md_context_t *ctx, unsigned char *output )
+{
+ if( ctx == NULL || ctx->md_info == NULL )
+ return POLARSSL_ERR_MD_BAD_INPUT_DATA;
+
+ ctx->md_info->finish_func( ctx->md_ctx, output );
+
+ return 0;
+}
+
+int md( const md_info_t *md_info, const unsigned char *input, size_t ilen,
+ unsigned char *output )
+{
+ if ( md_info == NULL )
+ return POLARSSL_ERR_MD_BAD_INPUT_DATA;
+
+ md_info->digest_func( input, ilen, output );
+
+ return 0;
+}
+
+int md_file( const md_info_t *md_info, const char *path, unsigned char *output )
+{
+#if defined(POLARSSL_FS_IO)
+ int ret;
+#endif
+
+ if( md_info == NULL )
+ return POLARSSL_ERR_MD_BAD_INPUT_DATA;
+
+#if defined(POLARSSL_FS_IO)
+ ret = md_info->file_func( path, output );
+ if( ret != 0 )
+ return( POLARSSL_ERR_MD_FILE_IO_ERROR + ret );
+
+ return( ret );
+#else
+ ((void) path);
+ ((void) output);
+
+ return POLARSSL_ERR_MD_FEATURE_UNAVAILABLE;
+#endif
+}
+
+int md_hmac_starts( md_context_t *ctx, const unsigned char *key, size_t keylen )
+{
+ if( ctx == NULL || ctx->md_info == NULL )
+ return POLARSSL_ERR_MD_BAD_INPUT_DATA;
+
+ ctx->md_info->hmac_starts_func( ctx->md_ctx, key, keylen);
+
+ return 0;
+}
+
+int md_hmac_update( md_context_t *ctx, const unsigned char *input, size_t ilen )
+{
+ if( ctx == NULL || ctx->md_info == NULL )
+ return POLARSSL_ERR_MD_BAD_INPUT_DATA;
+
+ ctx->md_info->hmac_update_func( ctx->md_ctx, input, ilen );
+
+ return 0;
+}
+
+int md_hmac_finish( md_context_t *ctx, unsigned char *output)
+{
+ if( ctx == NULL || ctx->md_info == NULL )
+ return POLARSSL_ERR_MD_BAD_INPUT_DATA;
+
+ ctx->md_info->hmac_finish_func( ctx->md_ctx, output);
+
+ return 0;
+}
+
+int md_hmac_reset( md_context_t *ctx )
+{
+ if( ctx == NULL || ctx->md_info == NULL )
+ return POLARSSL_ERR_MD_BAD_INPUT_DATA;
+
+ ctx->md_info->hmac_reset_func( ctx->md_ctx);
+
+ return 0;
+}
+
+int md_hmac( const md_info_t *md_info, const unsigned char *key, size_t keylen,
+ const unsigned char *input, size_t ilen,
+ unsigned char *output )
+{
+ if( md_info == NULL )
+ return POLARSSL_ERR_MD_BAD_INPUT_DATA;
+
+ md_info->hmac_func( key, keylen, input, ilen, output );
+
+ return 0;
+}
+
+#endif
--- /dev/null
+/*
+ * RFC 1115/1319 compliant MD2 implementation
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+/*
+ * The MD2 algorithm was designed by Ron Rivest in 1989.
+ *
+ * http://www.ietf.org/rfc/rfc1115.txt
+ * http://www.ietf.org/rfc/rfc1319.txt
+ */
+
+#include "polarssl/config.h"
+
+#if defined(POLARSSL_MD2_C)
+
+#include "polarssl/md2.h"
+
+#if defined(POLARSSL_FS_IO) || defined(POLARSSL_SELF_TEST)
+#include <stdio.h>
+#endif
+
+static const unsigned char PI_SUBST[256] =
+{
+ 0x29, 0x2E, 0x43, 0xC9, 0xA2, 0xD8, 0x7C, 0x01, 0x3D, 0x36,
+ 0x54, 0xA1, 0xEC, 0xF0, 0x06, 0x13, 0x62, 0xA7, 0x05, 0xF3,
+ 0xC0, 0xC7, 0x73, 0x8C, 0x98, 0x93, 0x2B, 0xD9, 0xBC, 0x4C,
+ 0x82, 0xCA, 0x1E, 0x9B, 0x57, 0x3C, 0xFD, 0xD4, 0xE0, 0x16,
+ 0x67, 0x42, 0x6F, 0x18, 0x8A, 0x17, 0xE5, 0x12, 0xBE, 0x4E,
+ 0xC4, 0xD6, 0xDA, 0x9E, 0xDE, 0x49, 0xA0, 0xFB, 0xF5, 0x8E,
+ 0xBB, 0x2F, 0xEE, 0x7A, 0xA9, 0x68, 0x79, 0x91, 0x15, 0xB2,
+ 0x07, 0x3F, 0x94, 0xC2, 0x10, 0x89, 0x0B, 0x22, 0x5F, 0x21,
+ 0x80, 0x7F, 0x5D, 0x9A, 0x5A, 0x90, 0x32, 0x27, 0x35, 0x3E,
+ 0xCC, 0xE7, 0xBF, 0xF7, 0x97, 0x03, 0xFF, 0x19, 0x30, 0xB3,
+ 0x48, 0xA5, 0xB5, 0xD1, 0xD7, 0x5E, 0x92, 0x2A, 0xAC, 0x56,
+ 0xAA, 0xC6, 0x4F, 0xB8, 0x38, 0xD2, 0x96, 0xA4, 0x7D, 0xB6,
+ 0x76, 0xFC, 0x6B, 0xE2, 0x9C, 0x74, 0x04, 0xF1, 0x45, 0x9D,
+ 0x70, 0x59, 0x64, 0x71, 0x87, 0x20, 0x86, 0x5B, 0xCF, 0x65,
+ 0xE6, 0x2D, 0xA8, 0x02, 0x1B, 0x60, 0x25, 0xAD, 0xAE, 0xB0,
+ 0xB9, 0xF6, 0x1C, 0x46, 0x61, 0x69, 0x34, 0x40, 0x7E, 0x0F,
+ 0x55, 0x47, 0xA3, 0x23, 0xDD, 0x51, 0xAF, 0x3A, 0xC3, 0x5C,
+ 0xF9, 0xCE, 0xBA, 0xC5, 0xEA, 0x26, 0x2C, 0x53, 0x0D, 0x6E,
+ 0x85, 0x28, 0x84, 0x09, 0xD3, 0xDF, 0xCD, 0xF4, 0x41, 0x81,
+ 0x4D, 0x52, 0x6A, 0xDC, 0x37, 0xC8, 0x6C, 0xC1, 0xAB, 0xFA,
+ 0x24, 0xE1, 0x7B, 0x08, 0x0C, 0xBD, 0xB1, 0x4A, 0x78, 0x88,
+ 0x95, 0x8B, 0xE3, 0x63, 0xE8, 0x6D, 0xE9, 0xCB, 0xD5, 0xFE,
+ 0x3B, 0x00, 0x1D, 0x39, 0xF2, 0xEF, 0xB7, 0x0E, 0x66, 0x58,
+ 0xD0, 0xE4, 0xA6, 0x77, 0x72, 0xF8, 0xEB, 0x75, 0x4B, 0x0A,
+ 0x31, 0x44, 0x50, 0xB4, 0x8F, 0xED, 0x1F, 0x1A, 0xDB, 0x99,
+ 0x8D, 0x33, 0x9F, 0x11, 0x83, 0x14
+};
+
+/*
+ * MD2 context setup
+ */
+void md2_starts( md2_context *ctx )
+{
+ memset( ctx->cksum, 0, 16 );
+ memset( ctx->state, 0, 46 );
+ memset( ctx->buffer, 0, 16 );
+ ctx->left = 0;
+}
+
+static void md2_process( md2_context *ctx )
+{
+ int i, j;
+ unsigned char t = 0;
+
+ for( i = 0; i < 16; i++ )
+ {
+ ctx->state[i + 16] = ctx->buffer[i];
+ ctx->state[i + 32] =
+ (unsigned char)( ctx->buffer[i] ^ ctx->state[i]);
+ }
+
+ for( i = 0; i < 18; i++ )
+ {
+ for( j = 0; j < 48; j++ )
+ {
+ ctx->state[j] = (unsigned char)
+ ( ctx->state[j] ^ PI_SUBST[t] );
+ t = ctx->state[j];
+ }
+
+ t = (unsigned char)( t + i );
+ }
+
+ t = ctx->cksum[15];
+
+ for( i = 0; i < 16; i++ )
+ {
+ ctx->cksum[i] = (unsigned char)
+ ( ctx->cksum[i] ^ PI_SUBST[ctx->buffer[i] ^ t] );
+ t = ctx->cksum[i];
+ }
+}
+
+/*
+ * MD2 process buffer
+ */
+void md2_update( md2_context *ctx, const unsigned char *input, size_t ilen )
+{
+ size_t fill;
+
+ while( ilen > 0 )
+ {
+ if( ctx->left + ilen > 16 )
+ fill = 16 - ctx->left;
+ else
+ fill = ilen;
+
+ memcpy( ctx->buffer + ctx->left, input, fill );
+
+ ctx->left += fill;
+ input += fill;
+ ilen -= fill;
+
+ if( ctx->left == 16 )
+ {
+ ctx->left = 0;
+ md2_process( ctx );
+ }
+ }
+}
+
+/*
+ * MD2 final digest
+ */
+void md2_finish( md2_context *ctx, unsigned char output[16] )
+{
+ size_t i;
+ unsigned char x;
+
+ x = (unsigned char)( 16 - ctx->left );
+
+ for( i = ctx->left; i < 16; i++ )
+ ctx->buffer[i] = x;
+
+ md2_process( ctx );
+
+ memcpy( ctx->buffer, ctx->cksum, 16 );
+ md2_process( ctx );
+
+ memcpy( output, ctx->state, 16 );
+}
+
+/*
+ * output = MD2( input buffer )
+ */
+void md2( const unsigned char *input, size_t ilen, unsigned char output[16] )
+{
+ md2_context ctx;
+
+ md2_starts( &ctx );
+ md2_update( &ctx, input, ilen );
+ md2_finish( &ctx, output );
+
+ memset( &ctx, 0, sizeof( md2_context ) );
+}
+
+#if defined(POLARSSL_FS_IO)
+/*
+ * output = MD2( file contents )
+ */
+int md2_file( const char *path, unsigned char output[16] )
+{
+ FILE *f;
+ size_t n;
+ md2_context ctx;
+ unsigned char buf[1024];
+
+ if( ( f = fopen( path, "rb" ) ) == NULL )
+ return( POLARSSL_ERR_MD2_FILE_IO_ERROR );
+
+ md2_starts( &ctx );
+
+ while( ( n = fread( buf, 1, sizeof( buf ), f ) ) > 0 )
+ md2_update( &ctx, buf, n );
+
+ md2_finish( &ctx, output );
+
+ memset( &ctx, 0, sizeof( md2_context ) );
+
+ if( ferror( f ) != 0 )
+ {
+ fclose( f );
+ return( POLARSSL_ERR_MD2_FILE_IO_ERROR );
+ }
+
+ fclose( f );
+ return( 0 );
+}
+#endif /* POLARSSL_FS_IO */
+
+/*
+ * MD2 HMAC context setup
+ */
+void md2_hmac_starts( md2_context *ctx, const unsigned char *key, size_t keylen )
+{
+ size_t i;
+ unsigned char sum[16];
+
+ if( keylen > 16 )
+ {
+ md2( key, keylen, sum );
+ keylen = 16;
+ key = sum;
+ }
+
+ memset( ctx->ipad, 0x36, 16 );
+ memset( ctx->opad, 0x5C, 16 );
+
+ for( i = 0; i < keylen; i++ )
+ {
+ ctx->ipad[i] = (unsigned char)( ctx->ipad[i] ^ key[i] );
+ ctx->opad[i] = (unsigned char)( ctx->opad[i] ^ key[i] );
+ }
+
+ md2_starts( ctx );
+ md2_update( ctx, ctx->ipad, 16 );
+
+ memset( sum, 0, sizeof( sum ) );
+}
+
+/*
+ * MD2 HMAC process buffer
+ */
+void md2_hmac_update( md2_context *ctx, const unsigned char *input, size_t ilen )
+{
+ md2_update( ctx, input, ilen );
+}
+
+/*
+ * MD2 HMAC final digest
+ */
+void md2_hmac_finish( md2_context *ctx, unsigned char output[16] )
+{
+ unsigned char tmpbuf[16];
+
+ md2_finish( ctx, tmpbuf );
+ md2_starts( ctx );
+ md2_update( ctx, ctx->opad, 16 );
+ md2_update( ctx, tmpbuf, 16 );
+ md2_finish( ctx, output );
+
+ memset( tmpbuf, 0, sizeof( tmpbuf ) );
+}
+
+/*
+ * MD2 HMAC context reset
+ */
+void md2_hmac_reset( md2_context *ctx )
+{
+ md2_starts( ctx );
+ md2_update( ctx, ctx->ipad, 16 );
+}
+
+/*
+ * output = HMAC-MD2( hmac key, input buffer )
+ */
+void md2_hmac( const unsigned char *key, size_t keylen,
+ const unsigned char *input, size_t ilen,
+ unsigned char output[16] )
+{
+ md2_context ctx;
+
+ md2_hmac_starts( &ctx, key, keylen );
+ md2_hmac_update( &ctx, input, ilen );
+ md2_hmac_finish( &ctx, output );
+
+ memset( &ctx, 0, sizeof( md2_context ) );
+}
+
+#if defined(POLARSSL_SELF_TEST)
+
+/*
+ * RFC 1319 test vectors
+ */
+static const char md2_test_str[7][81] =
+{
+ { "" },
+ { "a" },
+ { "abc" },
+ { "message digest" },
+ { "abcdefghijklmnopqrstuvwxyz" },
+ { "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789" },
+ { "12345678901234567890123456789012345678901234567890123456789012" \
+ "345678901234567890" }
+};
+
+static const unsigned char md2_test_sum[7][16] =
+{
+ { 0x83, 0x50, 0xE5, 0xA3, 0xE2, 0x4C, 0x15, 0x3D,
+ 0xF2, 0x27, 0x5C, 0x9F, 0x80, 0x69, 0x27, 0x73 },
+ { 0x32, 0xEC, 0x01, 0xEC, 0x4A, 0x6D, 0xAC, 0x72,
+ 0xC0, 0xAB, 0x96, 0xFB, 0x34, 0xC0, 0xB5, 0xD1 },
+ { 0xDA, 0x85, 0x3B, 0x0D, 0x3F, 0x88, 0xD9, 0x9B,
+ 0x30, 0x28, 0x3A, 0x69, 0xE6, 0xDE, 0xD6, 0xBB },
+ { 0xAB, 0x4F, 0x49, 0x6B, 0xFB, 0x2A, 0x53, 0x0B,
+ 0x21, 0x9F, 0xF3, 0x30, 0x31, 0xFE, 0x06, 0xB0 },
+ { 0x4E, 0x8D, 0xDF, 0xF3, 0x65, 0x02, 0x92, 0xAB,
+ 0x5A, 0x41, 0x08, 0xC3, 0xAA, 0x47, 0x94, 0x0B },
+ { 0xDA, 0x33, 0xDE, 0xF2, 0xA4, 0x2D, 0xF1, 0x39,
+ 0x75, 0x35, 0x28, 0x46, 0xC3, 0x03, 0x38, 0xCD },
+ { 0xD5, 0x97, 0x6F, 0x79, 0xD8, 0x3D, 0x3A, 0x0D,
+ 0xC9, 0x80, 0x6C, 0x3C, 0x66, 0xF3, 0xEF, 0xD8 }
+};
+
+/*
+ * Checkup routine
+ */
+int md2_self_test( int verbose )
+{
+ int i;
+ unsigned char md2sum[16];
+
+ for( i = 0; i < 7; i++ )
+ {
+ if( verbose != 0 )
+ printf( " MD2 test #%d: ", i + 1 );
+
+ md2( (unsigned char *) md2_test_str[i],
+ strlen( md2_test_str[i] ), md2sum );
+
+ if( memcmp( md2sum, md2_test_sum[i], 16 ) != 0 )
+ {
+ if( verbose != 0 )
+ printf( "failed\n" );
+
+ return( 1 );
+ }
+
+ if( verbose != 0 )
+ printf( "passed\n" );
+ }
+
+ if( verbose != 0 )
+ printf( "\n" );
+
+ return( 0 );
+}
+
+#endif
+
+#endif
--- /dev/null
+/*
+ * RFC 1186/1320 compliant MD4 implementation
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+/*
+ * The MD4 algorithm was designed by Ron Rivest in 1990.
+ *
+ * http://www.ietf.org/rfc/rfc1186.txt
+ * http://www.ietf.org/rfc/rfc1320.txt
+ */
+
+#include "polarssl/config.h"
+
+#if defined(POLARSSL_MD4_C)
+
+#include "polarssl/md4.h"
+
+#if defined(POLARSSL_FS_IO) || defined(POLARSSL_SELF_TEST)
+#include <stdio.h>
+#endif
+
+/*
+ * 32-bit integer manipulation macros (little endian)
+ */
+#ifndef GET_ULONG_LE
+#define GET_ULONG_LE(n,b,i) \
+{ \
+ (n) = ( (unsigned long) (b)[(i) ] ) \
+ | ( (unsigned long) (b)[(i) + 1] << 8 ) \
+ | ( (unsigned long) (b)[(i) + 2] << 16 ) \
+ | ( (unsigned long) (b)[(i) + 3] << 24 ); \
+}
+#endif
+
+#ifndef PUT_ULONG_LE
+#define PUT_ULONG_LE(n,b,i) \
+{ \
+ (b)[(i) ] = (unsigned char) ( (n) ); \
+ (b)[(i) + 1] = (unsigned char) ( (n) >> 8 ); \
+ (b)[(i) + 2] = (unsigned char) ( (n) >> 16 ); \
+ (b)[(i) + 3] = (unsigned char) ( (n) >> 24 ); \
+}
+#endif
+
+/*
+ * MD4 context setup
+ */
+void md4_starts( md4_context *ctx )
+{
+ ctx->total[0] = 0;
+ ctx->total[1] = 0;
+
+ ctx->state[0] = 0x67452301;
+ ctx->state[1] = 0xEFCDAB89;
+ ctx->state[2] = 0x98BADCFE;
+ ctx->state[3] = 0x10325476;
+}
+
+static void md4_process( md4_context *ctx, const unsigned char data[64] )
+{
+ unsigned long X[16], A, B, C, D;
+
+ GET_ULONG_LE( X[ 0], data, 0 );
+ GET_ULONG_LE( X[ 1], data, 4 );
+ GET_ULONG_LE( X[ 2], data, 8 );
+ GET_ULONG_LE( X[ 3], data, 12 );
+ GET_ULONG_LE( X[ 4], data, 16 );
+ GET_ULONG_LE( X[ 5], data, 20 );
+ GET_ULONG_LE( X[ 6], data, 24 );
+ GET_ULONG_LE( X[ 7], data, 28 );
+ GET_ULONG_LE( X[ 8], data, 32 );
+ GET_ULONG_LE( X[ 9], data, 36 );
+ GET_ULONG_LE( X[10], data, 40 );
+ GET_ULONG_LE( X[11], data, 44 );
+ GET_ULONG_LE( X[12], data, 48 );
+ GET_ULONG_LE( X[13], data, 52 );
+ GET_ULONG_LE( X[14], data, 56 );
+ GET_ULONG_LE( X[15], data, 60 );
+
+#define S(x,n) ((x << n) | ((x & 0xFFFFFFFF) >> (32 - n)))
+
+ A = ctx->state[0];
+ B = ctx->state[1];
+ C = ctx->state[2];
+ D = ctx->state[3];
+
+#define F(x, y, z) ((x & y) | ((~x) & z))
+#define P(a,b,c,d,x,s) { a += F(b,c,d) + x; a = S(a,s); }
+
+ P( A, B, C, D, X[ 0], 3 );
+ P( D, A, B, C, X[ 1], 7 );
+ P( C, D, A, B, X[ 2], 11 );
+ P( B, C, D, A, X[ 3], 19 );
+ P( A, B, C, D, X[ 4], 3 );
+ P( D, A, B, C, X[ 5], 7 );
+ P( C, D, A, B, X[ 6], 11 );
+ P( B, C, D, A, X[ 7], 19 );
+ P( A, B, C, D, X[ 8], 3 );
+ P( D, A, B, C, X[ 9], 7 );
+ P( C, D, A, B, X[10], 11 );
+ P( B, C, D, A, X[11], 19 );
+ P( A, B, C, D, X[12], 3 );
+ P( D, A, B, C, X[13], 7 );
+ P( C, D, A, B, X[14], 11 );
+ P( B, C, D, A, X[15], 19 );
+
+#undef P
+#undef F
+
+#define F(x,y,z) ((x & y) | (x & z) | (y & z))
+#define P(a,b,c,d,x,s) { a += F(b,c,d) + x + 0x5A827999; a = S(a,s); }
+
+ P( A, B, C, D, X[ 0], 3 );
+ P( D, A, B, C, X[ 4], 5 );
+ P( C, D, A, B, X[ 8], 9 );
+ P( B, C, D, A, X[12], 13 );
+ P( A, B, C, D, X[ 1], 3 );
+ P( D, A, B, C, X[ 5], 5 );
+ P( C, D, A, B, X[ 9], 9 );
+ P( B, C, D, A, X[13], 13 );
+ P( A, B, C, D, X[ 2], 3 );
+ P( D, A, B, C, X[ 6], 5 );
+ P( C, D, A, B, X[10], 9 );
+ P( B, C, D, A, X[14], 13 );
+ P( A, B, C, D, X[ 3], 3 );
+ P( D, A, B, C, X[ 7], 5 );
+ P( C, D, A, B, X[11], 9 );
+ P( B, C, D, A, X[15], 13 );
+
+#undef P
+#undef F
+
+#define F(x,y,z) (x ^ y ^ z)
+#define P(a,b,c,d,x,s) { a += F(b,c,d) + x + 0x6ED9EBA1; a = S(a,s); }
+
+ P( A, B, C, D, X[ 0], 3 );
+ P( D, A, B, C, X[ 8], 9 );
+ P( C, D, A, B, X[ 4], 11 );
+ P( B, C, D, A, X[12], 15 );
+ P( A, B, C, D, X[ 2], 3 );
+ P( D, A, B, C, X[10], 9 );
+ P( C, D, A, B, X[ 6], 11 );
+ P( B, C, D, A, X[14], 15 );
+ P( A, B, C, D, X[ 1], 3 );
+ P( D, A, B, C, X[ 9], 9 );
+ P( C, D, A, B, X[ 5], 11 );
+ P( B, C, D, A, X[13], 15 );
+ P( A, B, C, D, X[ 3], 3 );
+ P( D, A, B, C, X[11], 9 );
+ P( C, D, A, B, X[ 7], 11 );
+ P( B, C, D, A, X[15], 15 );
+
+#undef F
+#undef P
+
+ ctx->state[0] += A;
+ ctx->state[1] += B;
+ ctx->state[2] += C;
+ ctx->state[3] += D;
+}
+
+/*
+ * MD4 process buffer
+ */
+void md4_update( md4_context *ctx, const unsigned char *input, size_t ilen )
+{
+ size_t fill;
+ unsigned long left;
+
+ if( ilen <= 0 )
+ return;
+
+ left = ctx->total[0] & 0x3F;
+ fill = 64 - left;
+
+ ctx->total[0] += (unsigned long) ilen;
+ ctx->total[0] &= 0xFFFFFFFF;
+
+ if( ctx->total[0] < (unsigned long) ilen )
+ ctx->total[1]++;
+
+ if( left && ilen >= fill )
+ {
+ memcpy( (void *) (ctx->buffer + left),
+ (void *) input, fill );
+ md4_process( ctx, ctx->buffer );
+ input += fill;
+ ilen -= fill;
+ left = 0;
+ }
+
+ while( ilen >= 64 )
+ {
+ md4_process( ctx, input );
+ input += 64;
+ ilen -= 64;
+ }
+
+ if( ilen > 0 )
+ {
+ memcpy( (void *) (ctx->buffer + left),
+ (void *) input, ilen );
+ }
+}
+
+static const unsigned char md4_padding[64] =
+{
+ 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+};
+
+/*
+ * MD4 final digest
+ */
+void md4_finish( md4_context *ctx, unsigned char output[16] )
+{
+ unsigned long last, padn;
+ unsigned long high, low;
+ unsigned char msglen[8];
+
+ high = ( ctx->total[0] >> 29 )
+ | ( ctx->total[1] << 3 );
+ low = ( ctx->total[0] << 3 );
+
+ PUT_ULONG_LE( low, msglen, 0 );
+ PUT_ULONG_LE( high, msglen, 4 );
+
+ last = ctx->total[0] & 0x3F;
+ padn = ( last < 56 ) ? ( 56 - last ) : ( 120 - last );
+
+ md4_update( ctx, (unsigned char *) md4_padding, padn );
+ md4_update( ctx, msglen, 8 );
+
+ PUT_ULONG_LE( ctx->state[0], output, 0 );
+ PUT_ULONG_LE( ctx->state[1], output, 4 );
+ PUT_ULONG_LE( ctx->state[2], output, 8 );
+ PUT_ULONG_LE( ctx->state[3], output, 12 );
+}
+
+/*
+ * output = MD4( input buffer )
+ */
+void md4( const unsigned char *input, size_t ilen, unsigned char output[16] )
+{
+ md4_context ctx;
+
+ md4_starts( &ctx );
+ md4_update( &ctx, input, ilen );
+ md4_finish( &ctx, output );
+
+ memset( &ctx, 0, sizeof( md4_context ) );
+}
+
+#if defined(POLARSSL_FS_IO)
+/*
+ * output = MD4( file contents )
+ */
+int md4_file( const char *path, unsigned char output[16] )
+{
+ FILE *f;
+ size_t n;
+ md4_context ctx;
+ unsigned char buf[1024];
+
+ if( ( f = fopen( path, "rb" ) ) == NULL )
+ return( POLARSSL_ERR_MD4_FILE_IO_ERROR );
+
+ md4_starts( &ctx );
+
+ while( ( n = fread( buf, 1, sizeof( buf ), f ) ) > 0 )
+ md4_update( &ctx, buf, n );
+
+ md4_finish( &ctx, output );
+
+ memset( &ctx, 0, sizeof( md4_context ) );
+
+ if( ferror( f ) != 0 )
+ {
+ fclose( f );
+ return( POLARSSL_ERR_MD4_FILE_IO_ERROR );
+ }
+
+ fclose( f );
+ return( 0 );
+}
+#endif /* POLARSSL_FS_IO */
+
+/*
+ * MD4 HMAC context setup
+ */
+void md4_hmac_starts( md4_context *ctx, const unsigned char *key, size_t keylen )
+{
+ size_t i;
+ unsigned char sum[16];
+
+ if( keylen > 64 )
+ {
+ md4( key, keylen, sum );
+ keylen = 16;
+ key = sum;
+ }
+
+ memset( ctx->ipad, 0x36, 64 );
+ memset( ctx->opad, 0x5C, 64 );
+
+ for( i = 0; i < keylen; i++ )
+ {
+ ctx->ipad[i] = (unsigned char)( ctx->ipad[i] ^ key[i] );
+ ctx->opad[i] = (unsigned char)( ctx->opad[i] ^ key[i] );
+ }
+
+ md4_starts( ctx );
+ md4_update( ctx, ctx->ipad, 64 );
+
+ memset( sum, 0, sizeof( sum ) );
+}
+
+/*
+ * MD4 HMAC process buffer
+ */
+void md4_hmac_update( md4_context *ctx, const unsigned char *input, size_t ilen )
+{
+ md4_update( ctx, input, ilen );
+}
+
+/*
+ * MD4 HMAC final digest
+ */
+void md4_hmac_finish( md4_context *ctx, unsigned char output[16] )
+{
+ unsigned char tmpbuf[16];
+
+ md4_finish( ctx, tmpbuf );
+ md4_starts( ctx );
+ md4_update( ctx, ctx->opad, 64 );
+ md4_update( ctx, tmpbuf, 16 );
+ md4_finish( ctx, output );
+
+ memset( tmpbuf, 0, sizeof( tmpbuf ) );
+}
+
+/*
+ * MD4 HMAC context reset
+ */
+void md4_hmac_reset( md4_context *ctx )
+{
+ md4_starts( ctx );
+ md4_update( ctx, ctx->ipad, 64 );
+}
+
+/*
+ * output = HMAC-MD4( hmac key, input buffer )
+ */
+void md4_hmac( const unsigned char *key, size_t keylen,
+ const unsigned char *input, size_t ilen,
+ unsigned char output[16] )
+{
+ md4_context ctx;
+
+ md4_hmac_starts( &ctx, key, keylen );
+ md4_hmac_update( &ctx, input, ilen );
+ md4_hmac_finish( &ctx, output );
+
+ memset( &ctx, 0, sizeof( md4_context ) );
+}
+
+#if defined(POLARSSL_SELF_TEST)
+
+/*
+ * RFC 1320 test vectors
+ */
+static const char md4_test_str[7][81] =
+{
+ { "" },
+ { "a" },
+ { "abc" },
+ { "message digest" },
+ { "abcdefghijklmnopqrstuvwxyz" },
+ { "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789" },
+ { "12345678901234567890123456789012345678901234567890123456789012" \
+ "345678901234567890" }
+};
+
+static const unsigned char md4_test_sum[7][16] =
+{
+ { 0x31, 0xD6, 0xCF, 0xE0, 0xD1, 0x6A, 0xE9, 0x31,
+ 0xB7, 0x3C, 0x59, 0xD7, 0xE0, 0xC0, 0x89, 0xC0 },
+ { 0xBD, 0xE5, 0x2C, 0xB3, 0x1D, 0xE3, 0x3E, 0x46,
+ 0x24, 0x5E, 0x05, 0xFB, 0xDB, 0xD6, 0xFB, 0x24 },
+ { 0xA4, 0x48, 0x01, 0x7A, 0xAF, 0x21, 0xD8, 0x52,
+ 0x5F, 0xC1, 0x0A, 0xE8, 0x7A, 0xA6, 0x72, 0x9D },
+ { 0xD9, 0x13, 0x0A, 0x81, 0x64, 0x54, 0x9F, 0xE8,
+ 0x18, 0x87, 0x48, 0x06, 0xE1, 0xC7, 0x01, 0x4B },
+ { 0xD7, 0x9E, 0x1C, 0x30, 0x8A, 0xA5, 0xBB, 0xCD,
+ 0xEE, 0xA8, 0xED, 0x63, 0xDF, 0x41, 0x2D, 0xA9 },
+ { 0x04, 0x3F, 0x85, 0x82, 0xF2, 0x41, 0xDB, 0x35,
+ 0x1C, 0xE6, 0x27, 0xE1, 0x53, 0xE7, 0xF0, 0xE4 },
+ { 0xE3, 0x3B, 0x4D, 0xDC, 0x9C, 0x38, 0xF2, 0x19,
+ 0x9C, 0x3E, 0x7B, 0x16, 0x4F, 0xCC, 0x05, 0x36 }
+};
+
+/*
+ * Checkup routine
+ */
+int md4_self_test( int verbose )
+{
+ int i;
+ unsigned char md4sum[16];
+
+ for( i = 0; i < 7; i++ )
+ {
+ if( verbose != 0 )
+ printf( " MD4 test #%d: ", i + 1 );
+
+ md4( (unsigned char *) md4_test_str[i],
+ strlen( md4_test_str[i] ), md4sum );
+
+ if( memcmp( md4sum, md4_test_sum[i], 16 ) != 0 )
+ {
+ if( verbose != 0 )
+ printf( "failed\n" );
+
+ return( 1 );
+ }
+
+ if( verbose != 0 )
+ printf( "passed\n" );
+ }
+
+ if( verbose != 0 )
+ printf( "\n" );
+
+ return( 0 );
+}
+
+#endif
+
+#endif
--- /dev/null
+/*
+ * RFC 1321 compliant MD5 implementation
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+/*
+ * The MD5 algorithm was designed by Ron Rivest in 1991.
+ *
+ * http://www.ietf.org/rfc/rfc1321.txt
+ */
+
+#include "polarssl/config.h"
+
+#if defined(POLARSSL_MD5_C)
+
+#include "polarssl/md5.h"
+
+#if defined(POLARSSL_FS_IO) || defined(POLARSSL_SELF_TEST)
+#include <stdio.h>
+#endif
+
+/*
+ * 32-bit integer manipulation macros (little endian)
+ */
+#ifndef GET_ULONG_LE
+#define GET_ULONG_LE(n,b,i) \
+{ \
+ (n) = ( (unsigned long) (b)[(i) ] ) \
+ | ( (unsigned long) (b)[(i) + 1] << 8 ) \
+ | ( (unsigned long) (b)[(i) + 2] << 16 ) \
+ | ( (unsigned long) (b)[(i) + 3] << 24 ); \
+}
+#endif
+
+#ifndef PUT_ULONG_LE
+#define PUT_ULONG_LE(n,b,i) \
+{ \
+ (b)[(i) ] = (unsigned char) ( (n) ); \
+ (b)[(i) + 1] = (unsigned char) ( (n) >> 8 ); \
+ (b)[(i) + 2] = (unsigned char) ( (n) >> 16 ); \
+ (b)[(i) + 3] = (unsigned char) ( (n) >> 24 ); \
+}
+#endif
+
+/*
+ * MD5 context setup
+ */
+void md5_starts( md5_context *ctx )
+{
+ ctx->total[0] = 0;
+ ctx->total[1] = 0;
+
+ ctx->state[0] = 0x67452301;
+ ctx->state[1] = 0xEFCDAB89;
+ ctx->state[2] = 0x98BADCFE;
+ ctx->state[3] = 0x10325476;
+}
+
+static void md5_process( md5_context *ctx, const unsigned char data[64] )
+{
+ unsigned long X[16], A, B, C, D;
+
+ GET_ULONG_LE( X[ 0], data, 0 );
+ GET_ULONG_LE( X[ 1], data, 4 );
+ GET_ULONG_LE( X[ 2], data, 8 );
+ GET_ULONG_LE( X[ 3], data, 12 );
+ GET_ULONG_LE( X[ 4], data, 16 );
+ GET_ULONG_LE( X[ 5], data, 20 );
+ GET_ULONG_LE( X[ 6], data, 24 );
+ GET_ULONG_LE( X[ 7], data, 28 );
+ GET_ULONG_LE( X[ 8], data, 32 );
+ GET_ULONG_LE( X[ 9], data, 36 );
+ GET_ULONG_LE( X[10], data, 40 );
+ GET_ULONG_LE( X[11], data, 44 );
+ GET_ULONG_LE( X[12], data, 48 );
+ GET_ULONG_LE( X[13], data, 52 );
+ GET_ULONG_LE( X[14], data, 56 );
+ GET_ULONG_LE( X[15], data, 60 );
+
+#define S(x,n) ((x << n) | ((x & 0xFFFFFFFF) >> (32 - n)))
+
+#define P(a,b,c,d,k,s,t) \
+{ \
+ a += F(b,c,d) + X[k] + t; a = S(a,s) + b; \
+}
+
+ A = ctx->state[0];
+ B = ctx->state[1];
+ C = ctx->state[2];
+ D = ctx->state[3];
+
+#define F(x,y,z) (z ^ (x & (y ^ z)))
+
+ P( A, B, C, D, 0, 7, 0xD76AA478 );
+ P( D, A, B, C, 1, 12, 0xE8C7B756 );
+ P( C, D, A, B, 2, 17, 0x242070DB );
+ P( B, C, D, A, 3, 22, 0xC1BDCEEE );
+ P( A, B, C, D, 4, 7, 0xF57C0FAF );
+ P( D, A, B, C, 5, 12, 0x4787C62A );
+ P( C, D, A, B, 6, 17, 0xA8304613 );
+ P( B, C, D, A, 7, 22, 0xFD469501 );
+ P( A, B, C, D, 8, 7, 0x698098D8 );
+ P( D, A, B, C, 9, 12, 0x8B44F7AF );
+ P( C, D, A, B, 10, 17, 0xFFFF5BB1 );
+ P( B, C, D, A, 11, 22, 0x895CD7BE );
+ P( A, B, C, D, 12, 7, 0x6B901122 );
+ P( D, A, B, C, 13, 12, 0xFD987193 );
+ P( C, D, A, B, 14, 17, 0xA679438E );
+ P( B, C, D, A, 15, 22, 0x49B40821 );
+
+#undef F
+
+#define F(x,y,z) (y ^ (z & (x ^ y)))
+
+ P( A, B, C, D, 1, 5, 0xF61E2562 );
+ P( D, A, B, C, 6, 9, 0xC040B340 );
+ P( C, D, A, B, 11, 14, 0x265E5A51 );
+ P( B, C, D, A, 0, 20, 0xE9B6C7AA );
+ P( A, B, C, D, 5, 5, 0xD62F105D );
+ P( D, A, B, C, 10, 9, 0x02441453 );
+ P( C, D, A, B, 15, 14, 0xD8A1E681 );
+ P( B, C, D, A, 4, 20, 0xE7D3FBC8 );
+ P( A, B, C, D, 9, 5, 0x21E1CDE6 );
+ P( D, A, B, C, 14, 9, 0xC33707D6 );
+ P( C, D, A, B, 3, 14, 0xF4D50D87 );
+ P( B, C, D, A, 8, 20, 0x455A14ED );
+ P( A, B, C, D, 13, 5, 0xA9E3E905 );
+ P( D, A, B, C, 2, 9, 0xFCEFA3F8 );
+ P( C, D, A, B, 7, 14, 0x676F02D9 );
+ P( B, C, D, A, 12, 20, 0x8D2A4C8A );
+
+#undef F
+
+#define F(x,y,z) (x ^ y ^ z)
+
+ P( A, B, C, D, 5, 4, 0xFFFA3942 );
+ P( D, A, B, C, 8, 11, 0x8771F681 );
+ P( C, D, A, B, 11, 16, 0x6D9D6122 );
+ P( B, C, D, A, 14, 23, 0xFDE5380C );
+ P( A, B, C, D, 1, 4, 0xA4BEEA44 );
+ P( D, A, B, C, 4, 11, 0x4BDECFA9 );
+ P( C, D, A, B, 7, 16, 0xF6BB4B60 );
+ P( B, C, D, A, 10, 23, 0xBEBFBC70 );
+ P( A, B, C, D, 13, 4, 0x289B7EC6 );
+ P( D, A, B, C, 0, 11, 0xEAA127FA );
+ P( C, D, A, B, 3, 16, 0xD4EF3085 );
+ P( B, C, D, A, 6, 23, 0x04881D05 );
+ P( A, B, C, D, 9, 4, 0xD9D4D039 );
+ P( D, A, B, C, 12, 11, 0xE6DB99E5 );
+ P( C, D, A, B, 15, 16, 0x1FA27CF8 );
+ P( B, C, D, A, 2, 23, 0xC4AC5665 );
+
+#undef F
+
+#define F(x,y,z) (y ^ (x | ~z))
+
+ P( A, B, C, D, 0, 6, 0xF4292244 );
+ P( D, A, B, C, 7, 10, 0x432AFF97 );
+ P( C, D, A, B, 14, 15, 0xAB9423A7 );
+ P( B, C, D, A, 5, 21, 0xFC93A039 );
+ P( A, B, C, D, 12, 6, 0x655B59C3 );
+ P( D, A, B, C, 3, 10, 0x8F0CCC92 );
+ P( C, D, A, B, 10, 15, 0xFFEFF47D );
+ P( B, C, D, A, 1, 21, 0x85845DD1 );
+ P( A, B, C, D, 8, 6, 0x6FA87E4F );
+ P( D, A, B, C, 15, 10, 0xFE2CE6E0 );
+ P( C, D, A, B, 6, 15, 0xA3014314 );
+ P( B, C, D, A, 13, 21, 0x4E0811A1 );
+ P( A, B, C, D, 4, 6, 0xF7537E82 );
+ P( D, A, B, C, 11, 10, 0xBD3AF235 );
+ P( C, D, A, B, 2, 15, 0x2AD7D2BB );
+ P( B, C, D, A, 9, 21, 0xEB86D391 );
+
+#undef F
+
+ ctx->state[0] += A;
+ ctx->state[1] += B;
+ ctx->state[2] += C;
+ ctx->state[3] += D;
+}
+
+/*
+ * MD5 process buffer
+ */
+void md5_update( md5_context *ctx, const unsigned char *input, size_t ilen )
+{
+ size_t fill;
+ unsigned long left;
+
+ if( ilen <= 0 )
+ return;
+
+ left = ctx->total[0] & 0x3F;
+ fill = 64 - left;
+
+ ctx->total[0] += (unsigned long) ilen;
+ ctx->total[0] &= 0xFFFFFFFF;
+
+ if( ctx->total[0] < (unsigned long) ilen )
+ ctx->total[1]++;
+
+ if( left && ilen >= fill )
+ {
+ memcpy( (void *) (ctx->buffer + left),
+ (void *) input, fill );
+ md5_process( ctx, ctx->buffer );
+ input += fill;
+ ilen -= fill;
+ left = 0;
+ }
+
+ while( ilen >= 64 )
+ {
+ md5_process( ctx, input );
+ input += 64;
+ ilen -= 64;
+ }
+
+ if( ilen > 0 )
+ {
+ memcpy( (void *) (ctx->buffer + left),
+ (void *) input, ilen );
+ }
+}
+
+static const unsigned char md5_padding[64] =
+{
+ 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+};
+
+/*
+ * MD5 final digest
+ */
+void md5_finish( md5_context *ctx, unsigned char output[16] )
+{
+ unsigned long last, padn;
+ unsigned long high, low;
+ unsigned char msglen[8];
+
+ high = ( ctx->total[0] >> 29 )
+ | ( ctx->total[1] << 3 );
+ low = ( ctx->total[0] << 3 );
+
+ PUT_ULONG_LE( low, msglen, 0 );
+ PUT_ULONG_LE( high, msglen, 4 );
+
+ last = ctx->total[0] & 0x3F;
+ padn = ( last < 56 ) ? ( 56 - last ) : ( 120 - last );
+
+ md5_update( ctx, (unsigned char *) md5_padding, padn );
+ md5_update( ctx, msglen, 8 );
+
+ PUT_ULONG_LE( ctx->state[0], output, 0 );
+ PUT_ULONG_LE( ctx->state[1], output, 4 );
+ PUT_ULONG_LE( ctx->state[2], output, 8 );
+ PUT_ULONG_LE( ctx->state[3], output, 12 );
+}
+
+/*
+ * output = MD5( input buffer )
+ */
+void md5( const unsigned char *input, size_t ilen, unsigned char output[16] )
+{
+ md5_context ctx;
+
+ md5_starts( &ctx );
+ md5_update( &ctx, input, ilen );
+ md5_finish( &ctx, output );
+
+ memset( &ctx, 0, sizeof( md5_context ) );
+}
+
+#if defined(POLARSSL_FS_IO)
+/*
+ * output = MD5( file contents )
+ */
+int md5_file( const char *path, unsigned char output[16] )
+{
+ FILE *f;
+ size_t n;
+ md5_context ctx;
+ unsigned char buf[1024];
+
+ if( ( f = fopen( path, "rb" ) ) == NULL )
+ return( POLARSSL_ERR_MD5_FILE_IO_ERROR );
+
+ md5_starts( &ctx );
+
+ while( ( n = fread( buf, 1, sizeof( buf ), f ) ) > 0 )
+ md5_update( &ctx, buf, n );
+
+ md5_finish( &ctx, output );
+
+ memset( &ctx, 0, sizeof( md5_context ) );
+
+ if( ferror( f ) != 0 )
+ {
+ fclose( f );
+ return( POLARSSL_ERR_MD5_FILE_IO_ERROR );
+ }
+
+ fclose( f );
+ return( 0 );
+}
+#endif /* POLARSSL_FS_IO */
+
+/*
+ * MD5 HMAC context setup
+ */
+void md5_hmac_starts( md5_context *ctx, const unsigned char *key, size_t keylen )
+{
+ size_t i;
+ unsigned char sum[16];
+
+ if( keylen > 64 )
+ {
+ md5( key, keylen, sum );
+ keylen = 16;
+ key = sum;
+ }
+
+ memset( ctx->ipad, 0x36, 64 );
+ memset( ctx->opad, 0x5C, 64 );
+
+ for( i = 0; i < keylen; i++ )
+ {
+ ctx->ipad[i] = (unsigned char)( ctx->ipad[i] ^ key[i] );
+ ctx->opad[i] = (unsigned char)( ctx->opad[i] ^ key[i] );
+ }
+
+ md5_starts( ctx );
+ md5_update( ctx, ctx->ipad, 64 );
+
+ memset( sum, 0, sizeof( sum ) );
+}
+
+/*
+ * MD5 HMAC process buffer
+ */
+void md5_hmac_update( md5_context *ctx, const unsigned char *input, size_t ilen )
+{
+ md5_update( ctx, input, ilen );
+}
+
+/*
+ * MD5 HMAC final digest
+ */
+void md5_hmac_finish( md5_context *ctx, unsigned char output[16] )
+{
+ unsigned char tmpbuf[16];
+
+ md5_finish( ctx, tmpbuf );
+ md5_starts( ctx );
+ md5_update( ctx, ctx->opad, 64 );
+ md5_update( ctx, tmpbuf, 16 );
+ md5_finish( ctx, output );
+
+ memset( tmpbuf, 0, sizeof( tmpbuf ) );
+}
+
+/*
+ * MD5 HMAC context reset
+ */
+void md5_hmac_reset( md5_context *ctx )
+{
+ md5_starts( ctx );
+ md5_update( ctx, ctx->ipad, 64 );
+}
+
+/*
+ * output = HMAC-MD5( hmac key, input buffer )
+ */
+void md5_hmac( const unsigned char *key, size_t keylen,
+ const unsigned char *input, size_t ilen,
+ unsigned char output[16] )
+{
+ md5_context ctx;
+
+ md5_hmac_starts( &ctx, key, keylen );
+ md5_hmac_update( &ctx, input, ilen );
+ md5_hmac_finish( &ctx, output );
+
+ memset( &ctx, 0, sizeof( md5_context ) );
+}
+
+#if defined(POLARSSL_SELF_TEST)
+/*
+ * RFC 1321 test vectors
+ */
+static unsigned char md5_test_buf[7][81] =
+{
+ { "" },
+ { "a" },
+ { "abc" },
+ { "message digest" },
+ { "abcdefghijklmnopqrstuvwxyz" },
+ { "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789" },
+ { "12345678901234567890123456789012345678901234567890123456789012" \
+ "345678901234567890" }
+};
+
+static const int md5_test_buflen[7] =
+{
+ 0, 1, 3, 14, 26, 62, 80
+};
+
+static const unsigned char md5_test_sum[7][16] =
+{
+ { 0xD4, 0x1D, 0x8C, 0xD9, 0x8F, 0x00, 0xB2, 0x04,
+ 0xE9, 0x80, 0x09, 0x98, 0xEC, 0xF8, 0x42, 0x7E },
+ { 0x0C, 0xC1, 0x75, 0xB9, 0xC0, 0xF1, 0xB6, 0xA8,
+ 0x31, 0xC3, 0x99, 0xE2, 0x69, 0x77, 0x26, 0x61 },
+ { 0x90, 0x01, 0x50, 0x98, 0x3C, 0xD2, 0x4F, 0xB0,
+ 0xD6, 0x96, 0x3F, 0x7D, 0x28, 0xE1, 0x7F, 0x72 },
+ { 0xF9, 0x6B, 0x69, 0x7D, 0x7C, 0xB7, 0x93, 0x8D,
+ 0x52, 0x5A, 0x2F, 0x31, 0xAA, 0xF1, 0x61, 0xD0 },
+ { 0xC3, 0xFC, 0xD3, 0xD7, 0x61, 0x92, 0xE4, 0x00,
+ 0x7D, 0xFB, 0x49, 0x6C, 0xCA, 0x67, 0xE1, 0x3B },
+ { 0xD1, 0x74, 0xAB, 0x98, 0xD2, 0x77, 0xD9, 0xF5,
+ 0xA5, 0x61, 0x1C, 0x2C, 0x9F, 0x41, 0x9D, 0x9F },
+ { 0x57, 0xED, 0xF4, 0xA2, 0x2B, 0xE3, 0xC9, 0x55,
+ 0xAC, 0x49, 0xDA, 0x2E, 0x21, 0x07, 0xB6, 0x7A }
+};
+
+/*
+ * RFC 2202 test vectors
+ */
+static unsigned char md5_hmac_test_key[7][26] =
+{
+ { "\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B" },
+ { "Jefe" },
+ { "\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA" },
+ { "\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0A\x0B\x0C\x0D\x0E\x0F\x10"
+ "\x11\x12\x13\x14\x15\x16\x17\x18\x19" },
+ { "\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C" },
+ { "" }, /* 0xAA 80 times */
+ { "" }
+};
+
+static const int md5_hmac_test_keylen[7] =
+{
+ 16, 4, 16, 25, 16, 80, 80
+};
+
+static unsigned char md5_hmac_test_buf[7][74] =
+{
+ { "Hi There" },
+ { "what do ya want for nothing?" },
+ { "\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD"
+ "\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD"
+ "\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD"
+ "\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD"
+ "\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD" },
+ { "\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD"
+ "\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD"
+ "\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD"
+ "\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD"
+ "\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD" },
+ { "Test With Truncation" },
+ { "Test Using Larger Than Block-Size Key - Hash Key First" },
+ { "Test Using Larger Than Block-Size Key and Larger"
+ " Than One Block-Size Data" }
+};
+
+static const int md5_hmac_test_buflen[7] =
+{
+ 8, 28, 50, 50, 20, 54, 73
+};
+
+static const unsigned char md5_hmac_test_sum[7][16] =
+{
+ { 0x92, 0x94, 0x72, 0x7A, 0x36, 0x38, 0xBB, 0x1C,
+ 0x13, 0xF4, 0x8E, 0xF8, 0x15, 0x8B, 0xFC, 0x9D },
+ { 0x75, 0x0C, 0x78, 0x3E, 0x6A, 0xB0, 0xB5, 0x03,
+ 0xEA, 0xA8, 0x6E, 0x31, 0x0A, 0x5D, 0xB7, 0x38 },
+ { 0x56, 0xBE, 0x34, 0x52, 0x1D, 0x14, 0x4C, 0x88,
+ 0xDB, 0xB8, 0xC7, 0x33, 0xF0, 0xE8, 0xB3, 0xF6 },
+ { 0x69, 0x7E, 0xAF, 0x0A, 0xCA, 0x3A, 0x3A, 0xEA,
+ 0x3A, 0x75, 0x16, 0x47, 0x46, 0xFF, 0xAA, 0x79 },
+ { 0x56, 0x46, 0x1E, 0xF2, 0x34, 0x2E, 0xDC, 0x00,
+ 0xF9, 0xBA, 0xB9, 0x95 },
+ { 0x6B, 0x1A, 0xB7, 0xFE, 0x4B, 0xD7, 0xBF, 0x8F,
+ 0x0B, 0x62, 0xE6, 0xCE, 0x61, 0xB9, 0xD0, 0xCD },
+ { 0x6F, 0x63, 0x0F, 0xAD, 0x67, 0xCD, 0xA0, 0xEE,
+ 0x1F, 0xB1, 0xF5, 0x62, 0xDB, 0x3A, 0xA5, 0x3E }
+};
+
+/*
+ * Checkup routine
+ */
+int md5_self_test( int verbose )
+{
+ int i, buflen;
+ unsigned char buf[1024];
+ unsigned char md5sum[16];
+ md5_context ctx;
+
+ for( i = 0; i < 7; i++ )
+ {
+ if( verbose != 0 )
+ printf( " MD5 test #%d: ", i + 1 );
+
+ md5( md5_test_buf[i], md5_test_buflen[i], md5sum );
+
+ if( memcmp( md5sum, md5_test_sum[i], 16 ) != 0 )
+ {
+ if( verbose != 0 )
+ printf( "failed\n" );
+
+ return( 1 );
+ }
+
+ if( verbose != 0 )
+ printf( "passed\n" );
+ }
+
+ if( verbose != 0 )
+ printf( "\n" );
+
+ for( i = 0; i < 7; i++ )
+ {
+ if( verbose != 0 )
+ printf( " HMAC-MD5 test #%d: ", i + 1 );
+
+ if( i == 5 || i == 6 )
+ {
+ memset( buf, '\xAA', buflen = 80 );
+ md5_hmac_starts( &ctx, buf, buflen );
+ }
+ else
+ md5_hmac_starts( &ctx, md5_hmac_test_key[i],
+ md5_hmac_test_keylen[i] );
+
+ md5_hmac_update( &ctx, md5_hmac_test_buf[i],
+ md5_hmac_test_buflen[i] );
+
+ md5_hmac_finish( &ctx, md5sum );
+
+ buflen = ( i == 4 ) ? 12 : 16;
+
+ if( memcmp( md5sum, md5_hmac_test_sum[i], buflen ) != 0 )
+ {
+ if( verbose != 0 )
+ printf( "failed\n" );
+
+ return( 1 );
+ }
+
+ if( verbose != 0 )
+ printf( "passed\n" );
+ }
+
+ if( verbose != 0 )
+ printf( "\n" );
+
+ return( 0 );
+}
+
+#endif
+
+#endif
--- /dev/null
+/**
+ * \file md_wrap.c
+
+ * \brief Generic message digest wrapper for PolarSSL
+ *
+ * \author Adriaan de Jong <dejong@fox-it.com>
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "polarssl/config.h"
+
+#if defined(POLARSSL_MD_C)
+
+#include "polarssl/md_wrap.h"
+#include "polarssl/md2.h"
+#include "polarssl/md4.h"
+#include "polarssl/md5.h"
+#include "polarssl/sha1.h"
+#include "polarssl/sha2.h"
+#include "polarssl/sha4.h"
+
+#include <stdlib.h>
+
+#if defined(POLARSSL_MD2_C)
+
+static void md2_starts_wrap( void *ctx )
+{
+ md2_starts( (md2_context *) ctx );
+}
+
+static void md2_update_wrap( void *ctx, const unsigned char *input, size_t ilen )
+{
+ md2_update( (md2_context *) ctx, input, ilen );
+}
+
+static void md2_finish_wrap( void *ctx, unsigned char *output )
+{
+ md2_finish( (md2_context *) ctx, output );
+}
+
+int md2_file_wrap( const char *path, unsigned char *output )
+{
+#if defined(POLARSSL_FS_IO)
+ return md2_file( path, output );
+#else
+ ((void) path);
+ ((void) output);
+ return POLARSSL_ERR_MD_FEATURE_UNAVAILABLE;
+#endif
+}
+
+static void md2_hmac_starts_wrap( void *ctx, const unsigned char *key, size_t keylen )
+{
+ md2_hmac_starts( (md2_context *) ctx, key, keylen );
+}
+
+static void md2_hmac_update_wrap( void *ctx, const unsigned char *input, size_t ilen )
+{
+ md2_hmac_update( (md2_context *) ctx, input, ilen );
+}
+
+static void md2_hmac_finish_wrap( void *ctx, unsigned char *output )
+{
+ md2_hmac_finish( (md2_context *) ctx, output );
+}
+
+static void md2_hmac_reset_wrap( void *ctx )
+{
+ md2_hmac_reset( (md2_context *) ctx );
+}
+
+static void * md2_ctx_alloc( void )
+{
+ return malloc( sizeof( md2_context ) );
+}
+
+static void md2_ctx_free( void *ctx )
+{
+ free( ctx );
+}
+
+const md_info_t md2_info = {
+ POLARSSL_MD_MD2,
+ "MD2",
+ 16,
+ md2_starts_wrap,
+ md2_update_wrap,
+ md2_finish_wrap,
+ md2,
+ md2_file_wrap,
+ md2_hmac_starts_wrap,
+ md2_hmac_update_wrap,
+ md2_hmac_finish_wrap,
+ md2_hmac_reset_wrap,
+ md2_hmac,
+ md2_ctx_alloc,
+ md2_ctx_free,
+};
+
+#endif
+
+#if defined(POLARSSL_MD4_C)
+
+void md4_starts_wrap( void *ctx )
+{
+ md4_starts( (md4_context *) ctx );
+}
+
+void md4_update_wrap( void *ctx, const unsigned char *input, size_t ilen )
+{
+ md4_update( (md4_context *) ctx, input, ilen );
+}
+
+void md4_finish_wrap( void *ctx, unsigned char *output )
+{
+ md4_finish( (md4_context *) ctx, output );
+}
+
+int md4_file_wrap( const char *path, unsigned char *output )
+{
+#if defined(POLARSSL_FS_IO)
+ return md4_file( path, output );
+#else
+ ((void) path);
+ ((void) output);
+ return POLARSSL_ERR_MD_FEATURE_UNAVAILABLE;
+#endif
+}
+
+void md4_hmac_starts_wrap( void *ctx, const unsigned char *key, size_t keylen )
+{
+ md4_hmac_starts( (md4_context *) ctx, key, keylen );
+}
+
+void md4_hmac_update_wrap( void *ctx, const unsigned char *input, size_t ilen )
+{
+ md4_hmac_update( (md4_context *) ctx, input, ilen );
+}
+
+void md4_hmac_finish_wrap( void *ctx, unsigned char *output )
+{
+ md4_hmac_finish( (md4_context *) ctx, output );
+}
+
+void md4_hmac_reset_wrap( void *ctx )
+{
+ md4_hmac_reset( (md4_context *) ctx );
+}
+
+void *md4_ctx_alloc( void )
+{
+ return malloc( sizeof( md4_context ) );
+}
+
+void md4_ctx_free( void *ctx )
+{
+ free( ctx );
+}
+
+const md_info_t md4_info = {
+ POLARSSL_MD_MD4,
+ "MD4",
+ 16,
+ md4_starts_wrap,
+ md4_update_wrap,
+ md4_finish_wrap,
+ md4,
+ md4_file_wrap,
+ md4_hmac_starts_wrap,
+ md4_hmac_update_wrap,
+ md4_hmac_finish_wrap,
+ md4_hmac_reset_wrap,
+ md4_hmac,
+ md4_ctx_alloc,
+ md4_ctx_free,
+};
+
+#endif
+
+#if defined(POLARSSL_MD5_C)
+
+static void md5_starts_wrap( void *ctx )
+{
+ md5_starts( (md5_context *) ctx );
+}
+
+static void md5_update_wrap( void *ctx, const unsigned char *input, size_t ilen )
+{
+ md5_update( (md5_context *) ctx, input, ilen );
+}
+
+static void md5_finish_wrap( void *ctx, unsigned char *output )
+{
+ md5_finish( (md5_context *) ctx, output );
+}
+
+int md5_file_wrap( const char *path, unsigned char *output )
+{
+#if defined(POLARSSL_FS_IO)
+ return md5_file( path, output );
+#else
+ ((void) path);
+ ((void) output);
+ return POLARSSL_ERR_MD_FEATURE_UNAVAILABLE;
+#endif
+}
+
+static void md5_hmac_starts_wrap( void *ctx, const unsigned char *key, size_t keylen )
+{
+ md5_hmac_starts( (md5_context *) ctx, key, keylen );
+}
+
+static void md5_hmac_update_wrap( void *ctx, const unsigned char *input, size_t ilen )
+{
+ md5_hmac_update( (md5_context *) ctx, input, ilen );
+}
+
+static void md5_hmac_finish_wrap( void *ctx, unsigned char *output )
+{
+ md5_hmac_finish( (md5_context *) ctx, output );
+}
+
+static void md5_hmac_reset_wrap( void *ctx )
+{
+ md5_hmac_reset( (md5_context *) ctx );
+}
+
+static void * md5_ctx_alloc( void )
+{
+ return malloc( sizeof( md5_context ) );
+}
+
+static void md5_ctx_free( void *ctx )
+{
+ free( ctx );
+}
+
+const md_info_t md5_info = {
+ POLARSSL_MD_MD5,
+ "MD5",
+ 16,
+ md5_starts_wrap,
+ md5_update_wrap,
+ md5_finish_wrap,
+ md5,
+ md5_file_wrap,
+ md5_hmac_starts_wrap,
+ md5_hmac_update_wrap,
+ md5_hmac_finish_wrap,
+ md5_hmac_reset_wrap,
+ md5_hmac,
+ md5_ctx_alloc,
+ md5_ctx_free,
+};
+
+#endif
+
+#if defined(POLARSSL_SHA1_C)
+
+void sha1_starts_wrap( void *ctx )
+{
+ sha1_starts( (sha1_context *) ctx );
+}
+
+void sha1_update_wrap( void *ctx, const unsigned char *input, size_t ilen )
+{
+ sha1_update( (sha1_context *) ctx, input, ilen );
+}
+
+void sha1_finish_wrap( void *ctx, unsigned char *output )
+{
+ sha1_finish( (sha1_context *) ctx, output );
+}
+
+int sha1_file_wrap( const char *path, unsigned char *output )
+{
+#if defined(POLARSSL_FS_IO)
+ return sha1_file( path, output );
+#else
+ ((void) path);
+ ((void) output);
+ return POLARSSL_ERR_MD_FEATURE_UNAVAILABLE;
+#endif
+}
+
+void sha1_hmac_starts_wrap( void *ctx, const unsigned char *key, size_t keylen )
+{
+ sha1_hmac_starts( (sha1_context *) ctx, key, keylen );
+}
+
+void sha1_hmac_update_wrap( void *ctx, const unsigned char *input, size_t ilen )
+{
+ sha1_hmac_update( (sha1_context *) ctx, input, ilen );
+}
+
+void sha1_hmac_finish_wrap( void *ctx, unsigned char *output )
+{
+ sha1_hmac_finish( (sha1_context *) ctx, output );
+}
+
+void sha1_hmac_reset_wrap( void *ctx )
+{
+ sha1_hmac_reset( (sha1_context *) ctx );
+}
+
+void * sha1_ctx_alloc( void )
+{
+ return malloc( sizeof( sha1_context ) );
+}
+
+void sha1_ctx_free( void *ctx )
+{
+ free( ctx );
+}
+
+const md_info_t sha1_info = {
+ POLARSSL_MD_SHA1,
+ "SHA1",
+ 20,
+ sha1_starts_wrap,
+ sha1_update_wrap,
+ sha1_finish_wrap,
+ sha1,
+ sha1_file_wrap,
+ sha1_hmac_starts_wrap,
+ sha1_hmac_update_wrap,
+ sha1_hmac_finish_wrap,
+ sha1_hmac_reset_wrap,
+ sha1_hmac,
+ sha1_ctx_alloc,
+ sha1_ctx_free,
+};
+
+#endif
+
+/*
+ * Wrappers for generic message digests
+ */
+#if defined(POLARSSL_SHA2_C)
+
+void sha224_starts_wrap( void *ctx )
+{
+ sha2_starts( (sha2_context *) ctx, 1 );
+}
+
+void sha224_update_wrap( void *ctx, const unsigned char *input, size_t ilen )
+{
+ sha2_update( (sha2_context *) ctx, input, ilen );
+}
+
+void sha224_finish_wrap( void *ctx, unsigned char *output )
+{
+ sha2_finish( (sha2_context *) ctx, output );
+}
+
+void sha224_wrap( const unsigned char *input, size_t ilen,
+ unsigned char *output )
+{
+ sha2( input, ilen, output, 1 );
+}
+
+int sha224_file_wrap( const char *path, unsigned char *output )
+{
+#if defined(POLARSSL_FS_IO)
+ return sha2_file( path, output, 1 );
+#else
+ ((void) path);
+ ((void) output);
+ return POLARSSL_ERR_MD_FEATURE_UNAVAILABLE;
+#endif
+}
+
+void sha224_hmac_starts_wrap( void *ctx, const unsigned char *key, size_t keylen )
+{
+ sha2_hmac_starts( (sha2_context *) ctx, key, keylen, 1 );
+}
+
+void sha224_hmac_update_wrap( void *ctx, const unsigned char *input, size_t ilen )
+{
+ sha2_hmac_update( (sha2_context *) ctx, input, ilen );
+}
+
+void sha224_hmac_finish_wrap( void *ctx, unsigned char *output )
+{
+ sha2_hmac_finish( (sha2_context *) ctx, output );
+}
+
+void sha224_hmac_reset_wrap( void *ctx )
+{
+ sha2_hmac_reset( (sha2_context *) ctx );
+}
+
+void sha224_hmac_wrap( const unsigned char *key, size_t keylen,
+ const unsigned char *input, size_t ilen,
+ unsigned char *output )
+{
+ sha2_hmac( key, keylen, input, ilen, output, 1 );
+}
+
+void * sha224_ctx_alloc( void )
+{
+ return malloc( sizeof( sha2_context ) );
+}
+
+void sha224_ctx_free( void *ctx )
+{
+ free( ctx );
+}
+
+const md_info_t sha224_info = {
+ POLARSSL_MD_SHA224,
+ "SHA224",
+ 28,
+ sha224_starts_wrap,
+ sha224_update_wrap,
+ sha224_finish_wrap,
+ sha224_wrap,
+ sha224_file_wrap,
+ sha224_hmac_starts_wrap,
+ sha224_hmac_update_wrap,
+ sha224_hmac_finish_wrap,
+ sha224_hmac_reset_wrap,
+ sha224_hmac_wrap,
+ sha224_ctx_alloc,
+ sha224_ctx_free,
+};
+
+void sha256_starts_wrap( void *ctx )
+{
+ sha2_starts( (sha2_context *) ctx, 0 );
+}
+
+void sha256_update_wrap( void *ctx, const unsigned char *input, size_t ilen )
+{
+ sha2_update( (sha2_context *) ctx, input, ilen );
+}
+
+void sha256_finish_wrap( void *ctx, unsigned char *output )
+{
+ sha2_finish( (sha2_context *) ctx, output );
+}
+
+void sha256_wrap( const unsigned char *input, size_t ilen,
+ unsigned char *output )
+{
+ sha2( input, ilen, output, 0 );
+}
+
+int sha256_file_wrap( const char *path, unsigned char *output )
+{
+#if defined(POLARSSL_FS_IO)
+ return sha2_file( path, output, 0 );
+#else
+ ((void) path);
+ ((void) output);
+ return POLARSSL_ERR_MD_FEATURE_UNAVAILABLE;
+#endif
+}
+
+void sha256_hmac_starts_wrap( void *ctx, const unsigned char *key, size_t keylen )
+{
+ sha2_hmac_starts( (sha2_context *) ctx, key, keylen, 0 );
+}
+
+void sha256_hmac_update_wrap( void *ctx, const unsigned char *input, size_t ilen )
+{
+ sha2_hmac_update( (sha2_context *) ctx, input, ilen );
+}
+
+void sha256_hmac_finish_wrap( void *ctx, unsigned char *output )
+{
+ sha2_hmac_finish( (sha2_context *) ctx, output );
+}
+
+void sha256_hmac_reset_wrap( void *ctx )
+{
+ sha2_hmac_reset( (sha2_context *) ctx );
+}
+
+void sha256_hmac_wrap( const unsigned char *key, size_t keylen,
+ const unsigned char *input, size_t ilen,
+ unsigned char *output )
+{
+ sha2_hmac( key, keylen, input, ilen, output, 0 );
+}
+
+void * sha256_ctx_alloc( void )
+{
+ return malloc( sizeof( sha2_context ) );
+}
+
+void sha256_ctx_free( void *ctx )
+{
+ free( ctx );
+}
+
+const md_info_t sha256_info = {
+ POLARSSL_MD_SHA256,
+ "SHA256",
+ 32,
+ sha256_starts_wrap,
+ sha256_update_wrap,
+ sha256_finish_wrap,
+ sha256_wrap,
+ sha256_file_wrap,
+ sha256_hmac_starts_wrap,
+ sha256_hmac_update_wrap,
+ sha256_hmac_finish_wrap,
+ sha256_hmac_reset_wrap,
+ sha256_hmac_wrap,
+ sha256_ctx_alloc,
+ sha256_ctx_free,
+};
+
+#endif
+
+#if defined(POLARSSL_SHA4_C)
+
+void sha384_starts_wrap( void *ctx )
+{
+ sha4_starts( (sha4_context *) ctx, 1 );
+}
+
+void sha384_update_wrap( void *ctx, const unsigned char *input, size_t ilen )
+{
+ sha4_update( (sha4_context *) ctx, input, ilen );
+}
+
+void sha384_finish_wrap( void *ctx, unsigned char *output )
+{
+ sha4_finish( (sha4_context *) ctx, output );
+}
+
+void sha384_wrap( const unsigned char *input, size_t ilen,
+ unsigned char *output )
+{
+ sha4( input, ilen, output, 1 );
+}
+
+int sha384_file_wrap( const char *path, unsigned char *output )
+{
+#if defined(POLARSSL_FS_IO)
+ return sha4_file( path, output, 1 );
+#else
+ ((void) path);
+ ((void) output);
+ return POLARSSL_ERR_MD_FEATURE_UNAVAILABLE;
+#endif
+}
+
+void sha384_hmac_starts_wrap( void *ctx, const unsigned char *key, size_t keylen )
+{
+ sha4_hmac_starts( (sha4_context *) ctx, key, keylen, 1 );
+}
+
+void sha384_hmac_update_wrap( void *ctx, const unsigned char *input, size_t ilen )
+{
+ sha4_hmac_update( (sha4_context *) ctx, input, ilen );
+}
+
+void sha384_hmac_finish_wrap( void *ctx, unsigned char *output )
+{
+ sha4_hmac_finish( (sha4_context *) ctx, output );
+}
+
+void sha384_hmac_reset_wrap( void *ctx )
+{
+ sha4_hmac_reset( (sha4_context *) ctx );
+}
+
+void sha384_hmac_wrap( const unsigned char *key, size_t keylen,
+ const unsigned char *input, size_t ilen,
+ unsigned char *output )
+{
+ sha4_hmac( key, keylen, input, ilen, output, 1 );
+}
+
+void * sha384_ctx_alloc( void )
+{
+ return malloc( sizeof( sha4_context ) );
+}
+
+void sha384_ctx_free( void *ctx )
+{
+ free( ctx );
+}
+
+const md_info_t sha384_info = {
+ POLARSSL_MD_SHA384,
+ "SHA384",
+ 48,
+ sha384_starts_wrap,
+ sha384_update_wrap,
+ sha384_finish_wrap,
+ sha384_wrap,
+ sha384_file_wrap,
+ sha384_hmac_starts_wrap,
+ sha384_hmac_update_wrap,
+ sha384_hmac_finish_wrap,
+ sha384_hmac_reset_wrap,
+ sha384_hmac_wrap,
+ sha384_ctx_alloc,
+ sha384_ctx_free,
+};
+
+void sha512_starts_wrap( void *ctx )
+{
+ sha4_starts( (sha4_context *) ctx, 0 );
+}
+
+void sha512_update_wrap( void *ctx, const unsigned char *input, size_t ilen )
+{
+ sha4_update( (sha4_context *) ctx, input, ilen );
+}
+
+void sha512_finish_wrap( void *ctx, unsigned char *output )
+{
+ sha4_finish( (sha4_context *) ctx, output );
+}
+
+void sha512_wrap( const unsigned char *input, size_t ilen,
+ unsigned char *output )
+{
+ sha4( input, ilen, output, 0 );
+}
+
+int sha512_file_wrap( const char *path, unsigned char *output )
+{
+#if defined(POLARSSL_FS_IO)
+ return sha4_file( path, output, 0 );
+#else
+ ((void) path);
+ ((void) output);
+ return POLARSSL_ERR_MD_FEATURE_UNAVAILABLE;
+#endif
+}
+
+void sha512_hmac_starts_wrap( void *ctx, const unsigned char *key, size_t keylen )
+{
+ sha4_hmac_starts( (sha4_context *) ctx, key, keylen, 0 );
+}
+
+void sha512_hmac_update_wrap( void *ctx, const unsigned char *input, size_t ilen )
+{
+ sha4_hmac_update( (sha4_context *) ctx, input, ilen );
+}
+
+void sha512_hmac_finish_wrap( void *ctx, unsigned char *output )
+{
+ sha4_hmac_finish( (sha4_context *) ctx, output );
+}
+
+void sha512_hmac_reset_wrap( void *ctx )
+{
+ sha4_hmac_reset( (sha4_context *) ctx );
+}
+
+void sha512_hmac_wrap( const unsigned char *key, size_t keylen,
+ const unsigned char *input, size_t ilen,
+ unsigned char *output )
+{
+ sha4_hmac( key, keylen, input, ilen, output, 0 );
+}
+
+void * sha512_ctx_alloc( void )
+{
+ return malloc( sizeof( sha4_context ) );
+}
+
+void sha512_ctx_free( void *ctx )
+{
+ free( ctx );
+}
+
+const md_info_t sha512_info = {
+ POLARSSL_MD_SHA512,
+ "SHA512",
+ 64,
+ sha512_starts_wrap,
+ sha512_update_wrap,
+ sha512_finish_wrap,
+ sha512_wrap,
+ sha512_file_wrap,
+ sha512_hmac_starts_wrap,
+ sha512_hmac_update_wrap,
+ sha512_hmac_finish_wrap,
+ sha512_hmac_reset_wrap,
+ sha512_hmac_wrap,
+ sha512_ctx_alloc,
+ sha512_ctx_free,
+};
+
+#endif
+
+#endif
--- /dev/null
+/*
+ * TCP networking functions
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "polarssl/config.h"
+
+#if defined(POLARSSL_NET_C)
+
+#include "polarssl/net.h"
+
+#if defined(_WIN32) || defined(_WIN32_WCE)
+
+#include <winsock2.h>
+#include <windows.h>
+
+#if defined(_WIN32_WCE)
+#pragma comment( lib, "ws2.lib" )
+#else
+#pragma comment( lib, "ws2_32.lib" )
+#endif
+
+#define read(fd,buf,len) recv(fd,(char*)buf,(int) len,0)
+#define write(fd,buf,len) send(fd,(char*)buf,(int) len,0)
+#define close(fd) closesocket(fd)
+
+static int wsa_init_done = 0;
+
+#else
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <sys/time.h>
+#include <unistd.h>
+#include <signal.h>
+#include <fcntl.h>
+#include <netdb.h>
+#include <errno.h>
+
+#if defined(__FreeBSD__) || defined(__OpenBSD__)
+#include <sys/endian.h>
+#elif defined(__APPLE__)
+#include <machine/endian.h>
+#else
+#include <endian.h>
+#endif
+
+#endif
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <time.h>
+
+/*
+ * htons() is not always available.
+ * By default go for LITTLE_ENDIAN variant. Otherwise hope for _BYTE_ORDER and __BIG_ENDIAN
+ * to help determine endianess.
+ */
+#if defined(__BYTE_ORDER) && defined(__BIG_ENDIAN) && __BYTE_ORDER == __BIG_ENDIAN
+#define POLARSSL_HTONS(n) (n)
+#else
+#define POLARSSL_HTONS(n) (((((unsigned short)(n) & 0xFF)) << 8) | (((unsigned short)(n) & 0xFF00) >> 8))
+#endif
+
+unsigned short net_htons(unsigned short n);
+#define net_htons(n) POLARSSL_HTONS(n)
+
+/*
+ * Initiate a TCP connection with host:port
+ */
+int net_connect( int *fd, const char *host, int port )
+{
+ struct sockaddr_in server_addr;
+ struct hostent *server_host;
+
+#if defined(_WIN32) || defined(_WIN32_WCE)
+ WSADATA wsaData;
+
+ if( wsa_init_done == 0 )
+ {
+ if( WSAStartup( MAKEWORD(2,0), &wsaData ) == SOCKET_ERROR )
+ return( POLARSSL_ERR_NET_SOCKET_FAILED );
+
+ wsa_init_done = 1;
+ }
+#else
+ signal( SIGPIPE, SIG_IGN );
+#endif
+
+ if( ( server_host = gethostbyname( host ) ) == NULL )
+ return( POLARSSL_ERR_NET_UNKNOWN_HOST );
+
+ if( ( *fd = socket( AF_INET, SOCK_STREAM, IPPROTO_IP ) ) < 0 )
+ return( POLARSSL_ERR_NET_SOCKET_FAILED );
+
+ memcpy( (void *) &server_addr.sin_addr,
+ (void *) server_host->h_addr,
+ server_host->h_length );
+
+ server_addr.sin_family = AF_INET;
+ server_addr.sin_port = net_htons( port );
+
+ if( connect( *fd, (struct sockaddr *) &server_addr,
+ sizeof( server_addr ) ) < 0 )
+ {
+ close( *fd );
+ return( POLARSSL_ERR_NET_CONNECT_FAILED );
+ }
+
+ return( 0 );
+}
+
+/*
+ * Create a listening socket on bind_ip:port
+ */
+int net_bind( int *fd, const char *bind_ip, int port )
+{
+ int n, c[4];
+ struct sockaddr_in server_addr;
+
+#if defined(_WIN32) || defined(_WIN32_WCE)
+ WSADATA wsaData;
+
+ if( wsa_init_done == 0 )
+ {
+ if( WSAStartup( MAKEWORD(2,0), &wsaData ) == SOCKET_ERROR )
+ return( POLARSSL_ERR_NET_SOCKET_FAILED );
+
+ wsa_init_done = 1;
+ }
+#else
+ signal( SIGPIPE, SIG_IGN );
+#endif
+
+ if( ( *fd = socket( AF_INET, SOCK_STREAM, IPPROTO_IP ) ) < 0 )
+ return( POLARSSL_ERR_NET_SOCKET_FAILED );
+
+ n = 1;
+ setsockopt( *fd, SOL_SOCKET, SO_REUSEADDR,
+ (const char *) &n, sizeof( n ) );
+
+ server_addr.sin_addr.s_addr = INADDR_ANY;
+ server_addr.sin_family = AF_INET;
+ server_addr.sin_port = net_htons( port );
+
+ if( bind_ip != NULL )
+ {
+ memset( c, 0, sizeof( c ) );
+ sscanf( bind_ip, "%d.%d.%d.%d", &c[0], &c[1], &c[2], &c[3] );
+
+ for( n = 0; n < 4; n++ )
+ if( c[n] < 0 || c[n] > 255 )
+ break;
+
+ if( n == 4 )
+ server_addr.sin_addr.s_addr =
+ ( (unsigned long) c[0] << 24 ) |
+ ( (unsigned long) c[1] << 16 ) |
+ ( (unsigned long) c[2] << 8 ) |
+ ( (unsigned long) c[3] );
+ }
+
+ if( bind( *fd, (struct sockaddr *) &server_addr,
+ sizeof( server_addr ) ) < 0 )
+ {
+ close( *fd );
+ return( POLARSSL_ERR_NET_BIND_FAILED );
+ }
+
+ if( listen( *fd, POLARSSL_NET_LISTEN_BACKLOG ) != 0 )
+ {
+ close( *fd );
+ return( POLARSSL_ERR_NET_LISTEN_FAILED );
+ }
+
+ return( 0 );
+}
+
+/*
+ * Check if the current operation is blocking
+ */
+static int net_is_blocking( void )
+{
+#if defined(_WIN32) || defined(_WIN32_WCE)
+ return( WSAGetLastError() == WSAEWOULDBLOCK );
+#else
+ switch( errno )
+ {
+#if defined EAGAIN
+ case EAGAIN:
+#endif
+#if defined EWOULDBLOCK && EWOULDBLOCK != EAGAIN
+ case EWOULDBLOCK:
+#endif
+ return( 1 );
+ }
+ return( 0 );
+#endif
+}
+
+/*
+ * Accept a connection from a remote client
+ */
+int net_accept( int bind_fd, int *client_fd, void *client_ip )
+{
+ struct sockaddr_in client_addr;
+
+#if defined(__socklen_t_defined) || defined(_SOCKLEN_T) || \
+ defined(_SOCKLEN_T_DECLARED)
+ socklen_t n = (socklen_t) sizeof( client_addr );
+#else
+ int n = (int) sizeof( client_addr );
+#endif
+
+ *client_fd = accept( bind_fd, (struct sockaddr *)
+ &client_addr, &n );
+
+ if( *client_fd < 0 )
+ {
+ if( net_is_blocking() != 0 )
+ return( POLARSSL_ERR_NET_WANT_READ );
+
+ return( POLARSSL_ERR_NET_ACCEPT_FAILED );
+ }
+
+ if( client_ip != NULL )
+ memcpy( client_ip, &client_addr.sin_addr.s_addr,
+ sizeof( client_addr.sin_addr.s_addr ) );
+
+ return( 0 );
+}
+
+/*
+ * Set the socket blocking or non-blocking
+ */
+int net_set_block( int fd )
+{
+#if defined(_WIN32) || defined(_WIN32_WCE)
+ u_long n = 0;
+ return( ioctlsocket( fd, FIONBIO, &n ) );
+#else
+ return( fcntl( fd, F_SETFL, fcntl( fd, F_GETFL ) & ~O_NONBLOCK ) );
+#endif
+}
+
+int net_set_nonblock( int fd )
+{
+#if defined(_WIN32) || defined(_WIN32_WCE)
+ u_long n = 1;
+ return( ioctlsocket( fd, FIONBIO, &n ) );
+#else
+ return( fcntl( fd, F_SETFL, fcntl( fd, F_GETFL ) | O_NONBLOCK ) );
+#endif
+}
+
+/*
+ * Portable usleep helper
+ */
+void net_usleep( unsigned long usec )
+{
+ struct timeval tv;
+ tv.tv_sec = 0;
+ tv.tv_usec = usec;
+ select( 0, NULL, NULL, NULL, &tv );
+}
+
+/*
+ * Read at most 'len' characters
+ */
+int net_recv( void *ctx, unsigned char *buf, size_t len )
+{
+ int ret = read( *((int *) ctx), buf, len );
+
+ if( ret < 0 )
+ {
+ if( net_is_blocking() != 0 )
+ return( POLARSSL_ERR_NET_WANT_READ );
+
+#if defined(_WIN32) || defined(_WIN32_WCE)
+ if( WSAGetLastError() == WSAECONNRESET )
+ return( POLARSSL_ERR_NET_CONN_RESET );
+#else
+ if( errno == EPIPE || errno == ECONNRESET )
+ return( POLARSSL_ERR_NET_CONN_RESET );
+
+ if( errno == EINTR )
+ return( POLARSSL_ERR_NET_WANT_READ );
+#endif
+
+ return( POLARSSL_ERR_NET_RECV_FAILED );
+ }
+
+ return( ret );
+}
+
+/*
+ * Write at most 'len' characters
+ */
+int net_send( void *ctx, const unsigned char *buf, size_t len )
+{
+ int ret = write( *((int *) ctx), buf, len );
+
+ if( ret < 0 )
+ {
+ if( net_is_blocking() != 0 )
+ return( POLARSSL_ERR_NET_WANT_WRITE );
+
+#if defined(_WIN32) || defined(_WIN32_WCE)
+ if( WSAGetLastError() == WSAECONNRESET )
+ return( POLARSSL_ERR_NET_CONN_RESET );
+#else
+ if( errno == EPIPE || errno == ECONNRESET )
+ return( POLARSSL_ERR_NET_CONN_RESET );
+
+ if( errno == EINTR )
+ return( POLARSSL_ERR_NET_WANT_WRITE );
+#endif
+
+ return( POLARSSL_ERR_NET_SEND_FAILED );
+ }
+
+ return( ret );
+}
+
+/*
+ * Gracefully close the connection
+ */
+void net_close( int fd )
+{
+ shutdown( fd, 2 );
+ close( fd );
+}
+
+#endif
--- /dev/null
+/*
+ * VIA PadLock support functions
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+/*
+ * This implementation is based on the VIA PadLock Programming Guide:
+ *
+ * http://www.via.com.tw/en/downloads/whitepapers/initiatives/padlock/
+ * programming_guide.pdf
+ */
+
+#include "polarssl/config.h"
+
+#if defined(POLARSSL_PADLOCK_C)
+
+#include "polarssl/padlock.h"
+
+#if defined(POLARSSL_HAVE_X86)
+
+/*
+ * PadLock detection routine
+ */
+int padlock_supports( int feature )
+{
+ static int flags = -1;
+ int ebx, edx;
+
+ if( flags == -1 )
+ {
+ asm( "movl %%ebx, %0 \n" \
+ "movl $0xC0000000, %%eax \n" \
+ "cpuid \n" \
+ "cmpl $0xC0000001, %%eax \n" \
+ "movl $0, %%edx \n" \
+ "jb unsupported \n" \
+ "movl $0xC0000001, %%eax \n" \
+ "cpuid \n" \
+ "unsupported: \n" \
+ "movl %%edx, %1 \n" \
+ "movl %2, %%ebx \n"
+ : "=m" (ebx), "=m" (edx)
+ : "m" (ebx)
+ : "eax", "ecx", "edx" );
+
+ flags = edx;
+ }
+
+ return( flags & feature );
+}
+
+/*
+ * PadLock AES-ECB block en(de)cryption
+ */
+int padlock_xcryptecb( aes_context *ctx,
+ int mode,
+ const unsigned char input[16],
+ unsigned char output[16] )
+{
+ int ebx;
+ unsigned long *rk;
+ unsigned long *blk;
+ unsigned long *ctrl;
+ unsigned char buf[256];
+
+ rk = ctx->rk;
+ blk = PADLOCK_ALIGN16( buf );
+ memcpy( blk, input, 16 );
+
+ ctrl = blk + 4;
+ *ctrl = 0x80 | ctx->nr | ( ( ctx->nr + ( mode^1 ) - 10 ) << 9 );
+
+ asm( "pushfl; popfl \n" \
+ "movl %%ebx, %0 \n" \
+ "movl $1, %%ecx \n" \
+ "movl %2, %%edx \n" \
+ "movl %3, %%ebx \n" \
+ "movl %4, %%esi \n" \
+ "movl %4, %%edi \n" \
+ ".byte 0xf3,0x0f,0xa7,0xc8\n" \
+ "movl %1, %%ebx \n"
+ : "=m" (ebx)
+ : "m" (ebx), "m" (ctrl), "m" (rk), "m" (blk)
+ : "ecx", "edx", "esi", "edi" );
+
+ memcpy( output, blk, 16 );
+
+ return( 0 );
+}
+
+/*
+ * PadLock AES-CBC buffer en(de)cryption
+ */
+int padlock_xcryptcbc( aes_context *ctx,
+ int mode,
+ size_t length,
+ unsigned char iv[16],
+ const unsigned char *input,
+ unsigned char *output )
+{
+ int ebx;
+ size_t count;
+ unsigned long *rk;
+ unsigned long *iw;
+ unsigned long *ctrl;
+ unsigned char buf[256];
+
+ if( ( (long) input & 15 ) != 0 ||
+ ( (long) output & 15 ) != 0 )
+ return( POLARSSL_ERR_PADLOCK_DATA_MISALIGNED );
+
+ rk = ctx->rk;
+ iw = PADLOCK_ALIGN16( buf );
+ memcpy( iw, iv, 16 );
+
+ ctrl = iw + 4;
+ *ctrl = 0x80 | ctx->nr | ( ( ctx->nr + (mode^1) - 10 ) << 9 );
+
+ count = (length + 15) >> 4;
+
+ asm( "pushfl; popfl \n" \
+ "movl %%ebx, %0 \n" \
+ "movl %2, %%ecx \n" \
+ "movl %3, %%edx \n" \
+ "movl %4, %%ebx \n" \
+ "movl %5, %%esi \n" \
+ "movl %6, %%edi \n" \
+ "movl %7, %%eax \n" \
+ ".byte 0xf3,0x0f,0xa7,0xd0\n" \
+ "movl %1, %%ebx \n"
+ : "=m" (ebx)
+ : "m" (ebx), "m" (count), "m" (ctrl),
+ "m" (rk), "m" (input), "m" (output), "m" (iw)
+ : "eax", "ecx", "edx", "esi", "edi" );
+
+ memcpy( iv, iw, 16 );
+
+ return( 0 );
+}
+
+#endif
+
+#endif
--- /dev/null
+/*
+ * Privacy Enhanced Mail (PEM) decoding
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "polarssl/config.h"
+
+#if defined(POLARSSL_PEM_C)
+
+#include "polarssl/pem.h"
+#include "polarssl/base64.h"
+#include "polarssl/des.h"
+#include "polarssl/aes.h"
+#include "polarssl/md5.h"
+#include "polarssl/cipher.h"
+
+#include <stdlib.h>
+
+void pem_init( pem_context *ctx )
+{
+ memset( ctx, 0, sizeof( pem_context ) );
+}
+
+#if defined(POLARSSL_MD5_C) && (defined(POLARSSL_DES_C) || defined(POLARSSL_AES_C))
+/*
+ * Read a 16-byte hex string and convert it to binary
+ */
+static int pem_get_iv( const unsigned char *s, unsigned char *iv, size_t iv_len )
+{
+ size_t i, j, k;
+
+ memset( iv, 0, iv_len );
+
+ for( i = 0; i < iv_len * 2; i++, s++ )
+ {
+ if( *s >= '0' && *s <= '9' ) j = *s - '0'; else
+ if( *s >= 'A' && *s <= 'F' ) j = *s - '7'; else
+ if( *s >= 'a' && *s <= 'f' ) j = *s - 'W'; else
+ return( POLARSSL_ERR_PEM_INVALID_ENC_IV );
+
+ k = ( ( i & 1 ) != 0 ) ? j : j << 4;
+
+ iv[i >> 1] = (unsigned char)( iv[i >> 1] | k );
+ }
+
+ return( 0 );
+}
+
+static void pem_pbkdf1( unsigned char *key, size_t keylen,
+ unsigned char *iv,
+ const unsigned char *pwd, size_t pwdlen )
+{
+ md5_context md5_ctx;
+ unsigned char md5sum[16];
+ size_t use_len;
+
+ /*
+ * key[ 0..15] = MD5(pwd || IV)
+ */
+ md5_starts( &md5_ctx );
+ md5_update( &md5_ctx, pwd, pwdlen );
+ md5_update( &md5_ctx, iv, 8 );
+ md5_finish( &md5_ctx, md5sum );
+
+ if( keylen <= 16 )
+ {
+ memcpy( key, md5sum, keylen );
+
+ memset( &md5_ctx, 0, sizeof( md5_ctx ) );
+ memset( md5sum, 0, 16 );
+ return;
+ }
+
+ memcpy( key, md5sum, 16 );
+
+ /*
+ * key[16..23] = MD5(key[ 0..15] || pwd || IV])
+ */
+ md5_starts( &md5_ctx );
+ md5_update( &md5_ctx, md5sum, 16 );
+ md5_update( &md5_ctx, pwd, pwdlen );
+ md5_update( &md5_ctx, iv, 8 );
+ md5_finish( &md5_ctx, md5sum );
+
+ use_len = 16;
+ if( keylen < 32 )
+ use_len = keylen - 16;
+
+ memcpy( key + 16, md5sum, use_len );
+
+ memset( &md5_ctx, 0, sizeof( md5_ctx ) );
+ memset( md5sum, 0, 16 );
+}
+
+#if defined(POLARSSL_DES_C)
+/*
+ * Decrypt with DES-CBC, using PBKDF1 for key derivation
+ */
+static void pem_des_decrypt( unsigned char des_iv[8],
+ unsigned char *buf, size_t buflen,
+ const unsigned char *pwd, size_t pwdlen )
+{
+ des_context des_ctx;
+ unsigned char des_key[8];
+
+ pem_pbkdf1( des_key, 8, des_iv, pwd, pwdlen );
+
+ des_setkey_dec( &des_ctx, des_key );
+ des_crypt_cbc( &des_ctx, DES_DECRYPT, buflen,
+ des_iv, buf, buf );
+
+ memset( &des_ctx, 0, sizeof( des_ctx ) );
+ memset( des_key, 0, 8 );
+}
+
+/*
+ * Decrypt with 3DES-CBC, using PBKDF1 for key derivation
+ */
+static void pem_des3_decrypt( unsigned char des3_iv[8],
+ unsigned char *buf, size_t buflen,
+ const unsigned char *pwd, size_t pwdlen )
+{
+ des3_context des3_ctx;
+ unsigned char des3_key[24];
+
+ pem_pbkdf1( des3_key, 24, des3_iv, pwd, pwdlen );
+
+ des3_set3key_dec( &des3_ctx, des3_key );
+ des3_crypt_cbc( &des3_ctx, DES_DECRYPT, buflen,
+ des3_iv, buf, buf );
+
+ memset( &des3_ctx, 0, sizeof( des3_ctx ) );
+ memset( des3_key, 0, 24 );
+}
+#endif /* POLARSSL_DES_C */
+
+#if defined(POLARSSL_AES_C)
+/*
+ * Decrypt with AES-XXX-CBC, using PBKDF1 for key derivation
+ */
+static void pem_aes_decrypt( unsigned char aes_iv[16], unsigned int keylen,
+ unsigned char *buf, size_t buflen,
+ const unsigned char *pwd, size_t pwdlen )
+{
+ aes_context aes_ctx;
+ unsigned char aes_key[32];
+
+ pem_pbkdf1( aes_key, keylen, aes_iv, pwd, pwdlen );
+
+ aes_setkey_dec( &aes_ctx, aes_key, keylen * 8 );
+ aes_crypt_cbc( &aes_ctx, AES_DECRYPT, buflen,
+ aes_iv, buf, buf );
+
+ memset( &aes_ctx, 0, sizeof( aes_ctx ) );
+ memset( aes_key, 0, keylen );
+}
+#endif /* POLARSSL_AES_C */
+
+#endif /* POLARSSL_MD5_C && (POLARSSL_AES_C || POLARSSL_DES_C) */
+
+int pem_read_buffer( pem_context *ctx, char *header, char *footer, const unsigned char *data, const unsigned char *pwd, size_t pwdlen, size_t *use_len )
+{
+ int ret, enc;
+ size_t len;
+ unsigned char *buf;
+ unsigned char *s1, *s2;
+#if defined(POLARSSL_MD5_C) && (defined(POLARSSL_DES_C) || defined(POLARSSL_AES_C))
+ unsigned char pem_iv[16];
+ cipher_type_t enc_alg = POLARSSL_CIPHER_NONE;
+#else
+ ((void) pwd);
+ ((void) pwdlen);
+#endif /* POLARSSL_MD5_C && (POLARSSL_AES_C || POLARSSL_DES_C) */
+
+ if( ctx == NULL )
+ return( POLARSSL_ERR_PEM_INVALID_DATA );
+
+ s1 = (unsigned char *) strstr( (char *) data, header );
+
+ if( s1 == NULL )
+ return( POLARSSL_ERR_PEM_NO_HEADER_PRESENT );
+
+ s2 = (unsigned char *) strstr( (char *) data, footer );
+
+ if( s2 == NULL || s2 <= s1 )
+ return( POLARSSL_ERR_PEM_INVALID_DATA );
+
+ s1 += strlen( header );
+ if( *s1 == '\r' ) s1++;
+ if( *s1 == '\n' ) s1++;
+ else return( POLARSSL_ERR_PEM_INVALID_DATA );
+
+ enc = 0;
+
+ if( memcmp( s1, "Proc-Type: 4,ENCRYPTED", 22 ) == 0 )
+ {
+#if defined(POLARSSL_MD5_C) && (defined(POLARSSL_DES_C) || defined(POLARSSL_AES_C))
+ enc++;
+
+ s1 += 22;
+ if( *s1 == '\r' ) s1++;
+ if( *s1 == '\n' ) s1++;
+ else return( POLARSSL_ERR_PEM_INVALID_DATA );
+
+
+#if defined(POLARSSL_DES_C)
+ if( memcmp( s1, "DEK-Info: DES-EDE3-CBC,", 23 ) == 0 )
+ {
+ enc_alg = POLARSSL_CIPHER_DES_EDE3_CBC;
+
+ s1 += 23;
+ if( pem_get_iv( s1, pem_iv, 8 ) != 0 )
+ return( POLARSSL_ERR_PEM_INVALID_ENC_IV );
+
+ s1 += 16;
+ }
+ else if( memcmp( s1, "DEK-Info: DES-CBC,", 18 ) == 0 )
+ {
+ enc_alg = POLARSSL_CIPHER_DES_CBC;
+
+ s1 += 18;
+ if( pem_get_iv( s1, pem_iv, 8) != 0 )
+ return( POLARSSL_ERR_PEM_INVALID_ENC_IV );
+
+ s1 += 16;
+ }
+#endif /* POLARSSL_DES_C */
+
+#if defined(POLARSSL_AES_C)
+ if( memcmp( s1, "DEK-Info: AES-", 14 ) == 0 )
+ {
+ if( memcmp( s1, "DEK-Info: AES-128-CBC,", 22 ) == 0 )
+ enc_alg = POLARSSL_CIPHER_AES_128_CBC;
+ else if( memcmp( s1, "DEK-Info: AES-192-CBC,", 22 ) == 0 )
+ enc_alg = POLARSSL_CIPHER_AES_192_CBC;
+ else if( memcmp( s1, "DEK-Info: AES-256-CBC,", 22 ) == 0 )
+ enc_alg = POLARSSL_CIPHER_AES_256_CBC;
+ else
+ return( POLARSSL_ERR_PEM_UNKNOWN_ENC_ALG );
+
+ s1 += 22;
+ if( pem_get_iv( s1, pem_iv, 16 ) != 0 )
+ return( POLARSSL_ERR_PEM_INVALID_ENC_IV );
+
+ s1 += 32;
+ }
+#endif /* POLARSSL_AES_C */
+
+ if( enc_alg == POLARSSL_CIPHER_NONE )
+ return( POLARSSL_ERR_PEM_UNKNOWN_ENC_ALG );
+
+ if( *s1 == '\r' ) s1++;
+ if( *s1 == '\n' ) s1++;
+ else return( POLARSSL_ERR_PEM_INVALID_DATA );
+#else
+ return( POLARSSL_ERR_PEM_FEATURE_UNAVAILABLE );
+#endif /* POLARSSL_MD5_C && (POLARSSL_AES_C || POLARSSL_DES_C) */
+ }
+
+ len = 0;
+ ret = base64_decode( NULL, &len, s1, s2 - s1 );
+
+ if( ret == POLARSSL_ERR_BASE64_INVALID_CHARACTER )
+ return( POLARSSL_ERR_PEM_INVALID_DATA + ret );
+
+ if( ( buf = (unsigned char *) malloc( len ) ) == NULL )
+ return( POLARSSL_ERR_PEM_MALLOC_FAILED );
+
+ if( ( ret = base64_decode( buf, &len, s1, s2 - s1 ) ) != 0 )
+ {
+ free( buf );
+ return( POLARSSL_ERR_PEM_INVALID_DATA + ret );
+ }
+
+ if( enc != 0 )
+ {
+#if defined(POLARSSL_MD5_C) && (defined(POLARSSL_DES_C) || defined(POLARSSL_AES_C))
+ if( pwd == NULL )
+ {
+ free( buf );
+ return( POLARSSL_ERR_PEM_PASSWORD_REQUIRED );
+ }
+
+#if defined(POLARSSL_DES_C)
+ if( enc_alg == POLARSSL_CIPHER_DES_EDE3_CBC )
+ pem_des3_decrypt( pem_iv, buf, len, pwd, pwdlen );
+ else if( enc_alg == POLARSSL_CIPHER_DES_CBC )
+ pem_des_decrypt( pem_iv, buf, len, pwd, pwdlen );
+#endif /* POLARSSL_DES_C */
+
+#if defined(POLARSSL_AES_C)
+ if( enc_alg == POLARSSL_CIPHER_AES_128_CBC )
+ pem_aes_decrypt( pem_iv, 16, buf, len, pwd, pwdlen );
+ else if( enc_alg == POLARSSL_CIPHER_AES_192_CBC )
+ pem_aes_decrypt( pem_iv, 24, buf, len, pwd, pwdlen );
+ else if( enc_alg == POLARSSL_CIPHER_AES_256_CBC )
+ pem_aes_decrypt( pem_iv, 32, buf, len, pwd, pwdlen );
+#endif /* POLARSSL_AES_C */
+
+ if( buf[0] != 0x30 || buf[1] != 0x82 ||
+ buf[4] != 0x02 || buf[5] != 0x01 )
+ {
+ free( buf );
+ return( POLARSSL_ERR_PEM_PASSWORD_MISMATCH );
+ }
+#else
+ return( POLARSSL_ERR_PEM_FEATURE_UNAVAILABLE );
+#endif
+ }
+
+ ctx->buf = buf;
+ ctx->buflen = len;
+ s2 += strlen( footer );
+ if( *s2 == '\r' ) s2++;
+ if( *s2 == '\n' ) s2++;
+ *use_len = s2 - data;
+
+ return( 0 );
+}
+
+void pem_free( pem_context *ctx )
+{
+ if( ctx->buf )
+ free( ctx->buf );
+
+ if( ctx->info )
+ free( ctx->info );
+
+ memset( ctx, 0, sizeof( pem_context ) );
+}
+
+#endif
--- /dev/null
+/**
+ * \file pkcs11.c
+ *
+ * \brief Wrapper for PKCS#11 library libpkcs11-helper
+ *
+ * \author Adriaan de Jong <dejong@fox-it.com>
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "polarssl/pkcs11.h"
+
+#if defined(POLARSSL_PKCS11_C)
+
+#include <stdlib.h>
+
+int pkcs11_x509_cert_init( x509_cert *cert, pkcs11h_certificate_t pkcs11_cert )
+{
+ int ret = 1;
+ unsigned char *cert_blob = NULL;
+ size_t cert_blob_size = 0;
+
+ if( cert == NULL )
+ {
+ ret = 2;
+ goto cleanup;
+ }
+
+ if( pkcs11h_certificate_getCertificateBlob( pkcs11_cert, NULL, &cert_blob_size ) != CKR_OK )
+ {
+ ret = 3;
+ goto cleanup;
+ }
+
+ cert_blob = malloc( cert_blob_size );
+ if( NULL == cert_blob )
+ {
+ ret = 4;
+ goto cleanup;
+ }
+
+ if( pkcs11h_certificate_getCertificateBlob( pkcs11_cert, cert_blob, &cert_blob_size ) != CKR_OK )
+ {
+ ret = 5;
+ goto cleanup;
+ }
+
+ if( 0 != x509parse_crt(cert, cert_blob, cert_blob_size ) )
+ {
+ ret = 6;
+ goto cleanup;
+ }
+
+ ret = 0;
+
+cleanup:
+ if( NULL != cert_blob )
+ free( cert_blob );
+
+ return ret;
+}
+
+
+int pkcs11_priv_key_init( pkcs11_context *priv_key,
+ pkcs11h_certificate_t pkcs11_cert )
+{
+ int ret = 1;
+ x509_cert cert;
+
+ memset( &cert, 0, sizeof( cert ) );
+
+ if( priv_key == NULL )
+ goto cleanup;
+
+ if( 0 != pkcs11_x509_cert_init( &cert, pkcs11_cert ) )
+ goto cleanup;
+
+ priv_key->len = cert.rsa.len;
+ priv_key->pkcs11h_cert = pkcs11_cert;
+
+ ret = 0;
+
+cleanup:
+ x509_free( &cert );
+
+ return ret;
+}
+
+void pkcs11_priv_key_free( pkcs11_context *priv_key )
+{
+ if( NULL != priv_key )
+ pkcs11h_certificate_freeCertificate( priv_key->pkcs11h_cert );
+}
+
+int pkcs11_decrypt( pkcs11_context *ctx,
+ int mode, size_t *olen,
+ const unsigned char *input,
+ unsigned char *output,
+ unsigned int output_max_len )
+{
+ size_t input_len, output_len;
+
+ if( NULL == ctx )
+ return( POLARSSL_ERR_RSA_BAD_INPUT_DATA );
+
+ if( RSA_PUBLIC == mode )
+ return( POLARSSL_ERR_RSA_BAD_INPUT_DATA );
+
+ output_len = input_len = ctx->len;
+
+ if( input_len < 16 || input_len > output_max_len )
+ return( POLARSSL_ERR_RSA_BAD_INPUT_DATA );
+
+ /* Determine size of output buffer */
+ if( pkcs11h_certificate_decryptAny( ctx->pkcs11h_cert, CKM_RSA_PKCS, input,
+ input_len, NULL, &output_len ) != CKR_OK )
+ {
+ return( POLARSSL_ERR_RSA_BAD_INPUT_DATA );
+ }
+
+ if( output_len > output_max_len )
+ return( POLARSSL_ERR_RSA_OUTPUT_TOO_LARGE );
+
+ if( pkcs11h_certificate_decryptAny( ctx->pkcs11h_cert, CKM_RSA_PKCS, input,
+ input_len, output, &output_len ) != CKR_OK )
+ {
+ return( POLARSSL_ERR_RSA_BAD_INPUT_DATA );
+ }
+ *olen = output_len;
+ return( 0 );
+}
+
+int pkcs11_sign( pkcs11_context *ctx,
+ int mode,
+ int hash_id,
+ unsigned int hashlen,
+ const unsigned char *hash,
+ unsigned char *sig )
+{
+ size_t olen, asn_len;
+ unsigned char *p = sig;
+
+ if( NULL == ctx )
+ return POLARSSL_ERR_RSA_BAD_INPUT_DATA;
+
+ if( RSA_PUBLIC == mode )
+ return POLARSSL_ERR_RSA_BAD_INPUT_DATA;
+
+ olen = ctx->len;
+
+ switch( hash_id )
+ {
+ case SIG_RSA_RAW:
+ asn_len = 0;
+ memcpy( p, hash, hashlen );
+ break;
+
+ case SIG_RSA_MD2:
+ asn_len = OID_SIZE(ASN1_HASH_MDX);
+ memcpy( p, ASN1_HASH_MDX, asn_len );
+ memcpy( p + asn_len, hash, hashlen );
+ p[13] = 2; break;
+
+ case SIG_RSA_MD4:
+ asn_len = OID_SIZE(ASN1_HASH_MDX);
+ memcpy( p, ASN1_HASH_MDX, asn_len );
+ memcpy( p + asn_len, hash, hashlen );
+ p[13] = 4; break;
+
+ case SIG_RSA_MD5:
+ asn_len = OID_SIZE(ASN1_HASH_MDX);
+ memcpy( p, ASN1_HASH_MDX, asn_len );
+ memcpy( p + asn_len, hash, hashlen );
+ p[13] = 5; break;
+
+ case SIG_RSA_SHA1:
+ asn_len = OID_SIZE(ASN1_HASH_SHA1);
+ memcpy( p, ASN1_HASH_SHA1, asn_len );
+ memcpy( p + 15, hash, hashlen );
+ break;
+
+ case SIG_RSA_SHA224:
+ asn_len = OID_SIZE(ASN1_HASH_SHA2X);
+ memcpy( p, ASN1_HASH_SHA2X, asn_len );
+ memcpy( p + asn_len, hash, hashlen );
+ p[1] += hashlen; p[14] = 4; p[18] += hashlen; break;
+
+ case SIG_RSA_SHA256:
+ asn_len = OID_SIZE(ASN1_HASH_SHA2X);
+ memcpy( p, ASN1_HASH_SHA2X, asn_len );
+ memcpy( p + asn_len, hash, hashlen );
+ p[1] += hashlen; p[14] = 1; p[18] += hashlen; break;
+
+ case SIG_RSA_SHA384:
+ asn_len = OID_SIZE(ASN1_HASH_SHA2X);
+ memcpy( p, ASN1_HASH_SHA2X, asn_len );
+ memcpy( p + asn_len, hash, hashlen );
+ p[1] += hashlen; p[14] = 2; p[18] += hashlen; break;
+
+ case SIG_RSA_SHA512:
+ asn_len = OID_SIZE(ASN1_HASH_SHA2X);
+ memcpy( p, ASN1_HASH_SHA2X, asn_len );
+ memcpy( p + asn_len, hash, hashlen );
+ p[1] += hashlen; p[14] = 3; p[18] += hashlen; break;
+
+ default:
+ return( POLARSSL_ERR_RSA_BAD_INPUT_DATA );
+ }
+
+ if( pkcs11h_certificate_signAny( ctx->pkcs11h_cert, CKM_RSA_PKCS, sig,
+ asn_len + hashlen, sig, &olen ) != CKR_OK )
+ {
+ return( POLARSSL_ERR_RSA_BAD_INPUT_DATA );
+ }
+
+ return( 0 );
+}
+
+#endif /* defined(POLARSSL_PKCS11_C) */
--- /dev/null
+/*
+ * The RSA public-key cryptosystem
+ *
+ * Copyright (C) 2006-2011, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+/*
+ * RSA was designed by Ron Rivest, Adi Shamir and Len Adleman.
+ *
+ * http://theory.lcs.mit.edu/~rivest/rsapaper.pdf
+ * http://www.cacr.math.uwaterloo.ca/hac/about/chap8.pdf
+ */
+
+#include "polarssl/config.h"
+
+#if defined(POLARSSL_RSA_C)
+
+#include "polarssl/rsa.h"
+#include "polarssl/md.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+
+/*
+ * Initialize an RSA context
+ */
+void rsa_init( rsa_context *ctx,
+ int padding,
+ int hash_id )
+{
+ memset( ctx, 0, sizeof( rsa_context ) );
+
+ ctx->padding = padding;
+ ctx->hash_id = hash_id;
+}
+
+#if defined(POLARSSL_GENPRIME)
+
+/*
+ * Generate an RSA keypair
+ */
+int rsa_gen_key( rsa_context *ctx,
+ int (*f_rng)(void *, unsigned char *, size_t),
+ void *p_rng,
+ unsigned int nbits, int exponent )
+{
+ int ret;
+ mpi P1, Q1, H, G;
+
+ if( f_rng == NULL || nbits < 128 || exponent < 3 )
+ return( POLARSSL_ERR_RSA_BAD_INPUT_DATA );
+
+ mpi_init( &P1 ); mpi_init( &Q1 ); mpi_init( &H ); mpi_init( &G );
+
+ /*
+ * find primes P and Q with Q < P so that:
+ * GCD( E, (P-1)*(Q-1) ) == 1
+ */
+ MPI_CHK( mpi_lset( &ctx->E, exponent ) );
+
+ do
+ {
+ MPI_CHK( mpi_gen_prime( &ctx->P, ( nbits + 1 ) >> 1, 0,
+ f_rng, p_rng ) );
+
+ MPI_CHK( mpi_gen_prime( &ctx->Q, ( nbits + 1 ) >> 1, 0,
+ f_rng, p_rng ) );
+
+ if( mpi_cmp_mpi( &ctx->P, &ctx->Q ) < 0 )
+ mpi_swap( &ctx->P, &ctx->Q );
+
+ if( mpi_cmp_mpi( &ctx->P, &ctx->Q ) == 0 )
+ continue;
+
+ MPI_CHK( mpi_mul_mpi( &ctx->N, &ctx->P, &ctx->Q ) );
+ if( mpi_msb( &ctx->N ) != nbits )
+ continue;
+
+ MPI_CHK( mpi_sub_int( &P1, &ctx->P, 1 ) );
+ MPI_CHK( mpi_sub_int( &Q1, &ctx->Q, 1 ) );
+ MPI_CHK( mpi_mul_mpi( &H, &P1, &Q1 ) );
+ MPI_CHK( mpi_gcd( &G, &ctx->E, &H ) );
+ }
+ while( mpi_cmp_int( &G, 1 ) != 0 );
+
+ /*
+ * D = E^-1 mod ((P-1)*(Q-1))
+ * DP = D mod (P - 1)
+ * DQ = D mod (Q - 1)
+ * QP = Q^-1 mod P
+ */
+ MPI_CHK( mpi_inv_mod( &ctx->D , &ctx->E, &H ) );
+ MPI_CHK( mpi_mod_mpi( &ctx->DP, &ctx->D, &P1 ) );
+ MPI_CHK( mpi_mod_mpi( &ctx->DQ, &ctx->D, &Q1 ) );
+ MPI_CHK( mpi_inv_mod( &ctx->QP, &ctx->Q, &ctx->P ) );
+
+ ctx->len = ( mpi_msb( &ctx->N ) + 7 ) >> 3;
+
+cleanup:
+
+ mpi_free( &P1 ); mpi_free( &Q1 ); mpi_free( &H ); mpi_free( &G );
+
+ if( ret != 0 )
+ {
+ rsa_free( ctx );
+ return( POLARSSL_ERR_RSA_KEY_GEN_FAILED + ret );
+ }
+
+ return( 0 );
+}
+
+#endif
+
+/*
+ * Check a public RSA key
+ */
+int rsa_check_pubkey( const rsa_context *ctx )
+{
+ if( !ctx->N.p || !ctx->E.p )
+ return( POLARSSL_ERR_RSA_KEY_CHECK_FAILED );
+
+ if( ( ctx->N.p[0] & 1 ) == 0 ||
+ ( ctx->E.p[0] & 1 ) == 0 )
+ return( POLARSSL_ERR_RSA_KEY_CHECK_FAILED );
+
+ if( mpi_msb( &ctx->N ) < 128 ||
+ mpi_msb( &ctx->N ) > POLARSSL_MPI_MAX_BITS )
+ return( POLARSSL_ERR_RSA_KEY_CHECK_FAILED );
+
+ if( mpi_msb( &ctx->E ) < 2 ||
+ mpi_msb( &ctx->E ) > 64 )
+ return( POLARSSL_ERR_RSA_KEY_CHECK_FAILED );
+
+ return( 0 );
+}
+
+/*
+ * Check a private RSA key
+ */
+int rsa_check_privkey( const rsa_context *ctx )
+{
+ int ret;
+ mpi PQ, DE, P1, Q1, H, I, G, G2, L1, L2;
+
+ if( ( ret = rsa_check_pubkey( ctx ) ) != 0 )
+ return( ret );
+
+ if( !ctx->P.p || !ctx->Q.p || !ctx->D.p )
+ return( POLARSSL_ERR_RSA_KEY_CHECK_FAILED );
+
+ mpi_init( &PQ ); mpi_init( &DE ); mpi_init( &P1 ); mpi_init( &Q1 );
+ mpi_init( &H ); mpi_init( &I ); mpi_init( &G ); mpi_init( &G2 );
+ mpi_init( &L1 ); mpi_init( &L2 );
+
+ MPI_CHK( mpi_mul_mpi( &PQ, &ctx->P, &ctx->Q ) );
+ MPI_CHK( mpi_mul_mpi( &DE, &ctx->D, &ctx->E ) );
+ MPI_CHK( mpi_sub_int( &P1, &ctx->P, 1 ) );
+ MPI_CHK( mpi_sub_int( &Q1, &ctx->Q, 1 ) );
+ MPI_CHK( mpi_mul_mpi( &H, &P1, &Q1 ) );
+ MPI_CHK( mpi_gcd( &G, &ctx->E, &H ) );
+
+ MPI_CHK( mpi_gcd( &G2, &P1, &Q1 ) );
+ MPI_CHK( mpi_div_mpi( &L1, &L2, &H, &G2 ) );
+ MPI_CHK( mpi_mod_mpi( &I, &DE, &L1 ) );
+
+ /*
+ * Check for a valid PKCS1v2 private key
+ */
+ if( mpi_cmp_mpi( &PQ, &ctx->N ) != 0 ||
+ mpi_cmp_int( &L2, 0 ) != 0 ||
+ mpi_cmp_int( &I, 1 ) != 0 ||
+ mpi_cmp_int( &G, 1 ) != 0 )
+ {
+ ret = POLARSSL_ERR_RSA_KEY_CHECK_FAILED;
+ }
+
+
+cleanup:
+
+ mpi_free( &PQ ); mpi_free( &DE ); mpi_free( &P1 ); mpi_free( &Q1 );
+ mpi_free( &H ); mpi_free( &I ); mpi_free( &G ); mpi_free( &G2 );
+ mpi_free( &L1 ); mpi_free( &L2 );
+
+ if( ret == POLARSSL_ERR_RSA_KEY_CHECK_FAILED )
+ return( ret );
+
+ if( ret != 0 )
+ return( POLARSSL_ERR_RSA_KEY_CHECK_FAILED + ret );
+
+ return( 0 );
+}
+
+/*
+ * Do an RSA public key operation
+ */
+int rsa_public( rsa_context *ctx,
+ const unsigned char *input,
+ unsigned char *output )
+{
+ int ret;
+ size_t olen;
+ mpi T;
+
+ mpi_init( &T );
+
+ MPI_CHK( mpi_read_binary( &T, input, ctx->len ) );
+
+ if( mpi_cmp_mpi( &T, &ctx->N ) >= 0 )
+ {
+ mpi_free( &T );
+ return( POLARSSL_ERR_RSA_BAD_INPUT_DATA );
+ }
+
+ olen = ctx->len;
+ MPI_CHK( mpi_exp_mod( &T, &T, &ctx->E, &ctx->N, &ctx->RN ) );
+ MPI_CHK( mpi_write_binary( &T, output, olen ) );
+
+cleanup:
+
+ mpi_free( &T );
+
+ if( ret != 0 )
+ return( POLARSSL_ERR_RSA_PUBLIC_FAILED + ret );
+
+ return( 0 );
+}
+
+/*
+ * Do an RSA private key operation
+ */
+int rsa_private( rsa_context *ctx,
+ const unsigned char *input,
+ unsigned char *output )
+{
+ int ret;
+ size_t olen;
+ mpi T, T1, T2;
+
+ mpi_init( &T ); mpi_init( &T1 ); mpi_init( &T2 );
+
+ MPI_CHK( mpi_read_binary( &T, input, ctx->len ) );
+
+ if( mpi_cmp_mpi( &T, &ctx->N ) >= 0 )
+ {
+ mpi_free( &T );
+ return( POLARSSL_ERR_RSA_BAD_INPUT_DATA );
+ }
+
+#if defined(POLARSSL_RSA_NO_CRT)
+ MPI_CHK( mpi_exp_mod( &T, &T, &ctx->D, &ctx->N, &ctx->RN ) );
+#else
+ /*
+ * faster decryption using the CRT
+ *
+ * T1 = input ^ dP mod P
+ * T2 = input ^ dQ mod Q
+ */
+ MPI_CHK( mpi_exp_mod( &T1, &T, &ctx->DP, &ctx->P, &ctx->RP ) );
+ MPI_CHK( mpi_exp_mod( &T2, &T, &ctx->DQ, &ctx->Q, &ctx->RQ ) );
+
+ /*
+ * T = (T1 - T2) * (Q^-1 mod P) mod P
+ */
+ MPI_CHK( mpi_sub_mpi( &T, &T1, &T2 ) );
+ MPI_CHK( mpi_mul_mpi( &T1, &T, &ctx->QP ) );
+ MPI_CHK( mpi_mod_mpi( &T, &T1, &ctx->P ) );
+
+ /*
+ * output = T2 + T * Q
+ */
+ MPI_CHK( mpi_mul_mpi( &T1, &T, &ctx->Q ) );
+ MPI_CHK( mpi_add_mpi( &T, &T2, &T1 ) );
+#endif
+
+ olen = ctx->len;
+ MPI_CHK( mpi_write_binary( &T, output, olen ) );
+
+cleanup:
+
+ mpi_free( &T ); mpi_free( &T1 ); mpi_free( &T2 );
+
+ if( ret != 0 )
+ return( POLARSSL_ERR_RSA_PRIVATE_FAILED + ret );
+
+ return( 0 );
+}
+
+#if defined(POLARSSL_PKCS1_V21)
+/**
+ * Generate and apply the MGF1 operation (from PKCS#1 v2.1) to a buffer.
+ *
+ * \param dst buffer to mask
+ * \param dlen length of destination buffer
+ * \param src source of the mask generation
+ * \param slen length of the source buffer
+ * \param md_ctx message digest context to use
+ */
+static void mgf_mask( unsigned char *dst, size_t dlen, unsigned char *src, size_t slen,
+ md_context_t *md_ctx )
+{
+ unsigned char mask[POLARSSL_MD_MAX_SIZE];
+ unsigned char counter[4];
+ unsigned char *p;
+ unsigned int hlen;
+ size_t i, use_len;
+
+ memset( mask, 0, POLARSSL_MD_MAX_SIZE );
+ memset( counter, 0, 4 );
+
+ hlen = md_ctx->md_info->size;
+
+ // Generate and apply dbMask
+ //
+ p = dst;
+
+ while( dlen > 0 )
+ {
+ use_len = hlen;
+ if( dlen < hlen )
+ use_len = dlen;
+
+ md_starts( md_ctx );
+ md_update( md_ctx, src, slen );
+ md_update( md_ctx, counter, 4 );
+ md_finish( md_ctx, mask );
+
+ for( i = 0; i < use_len; ++i )
+ *p++ ^= mask[i];
+
+ counter[3]++;
+
+ dlen -= use_len;
+ }
+}
+#endif
+
+/*
+ * Add the message padding, then do an RSA operation
+ */
+int rsa_pkcs1_encrypt( rsa_context *ctx,
+ int (*f_rng)(void *, unsigned char *, size_t),
+ void *p_rng,
+ int mode, size_t ilen,
+ const unsigned char *input,
+ unsigned char *output )
+{
+ size_t nb_pad, olen;
+ int ret;
+ unsigned char *p = output;
+#if defined(POLARSSL_PKCS1_V21)
+ unsigned int hlen;
+ const md_info_t *md_info;
+ md_context_t md_ctx;
+#endif
+
+ olen = ctx->len;
+
+ if( f_rng == NULL )
+ return( POLARSSL_ERR_RSA_BAD_INPUT_DATA );
+
+ switch( ctx->padding )
+ {
+ case RSA_PKCS_V15:
+
+ if( olen < ilen + 11 )
+ return( POLARSSL_ERR_RSA_BAD_INPUT_DATA );
+
+ nb_pad = olen - 3 - ilen;
+
+ *p++ = 0;
+ *p++ = RSA_CRYPT;
+
+ while( nb_pad-- > 0 )
+ {
+ int rng_dl = 100;
+
+ do {
+ ret = f_rng( p_rng, p, 1 );
+ } while( *p == 0 && --rng_dl && ret == 0 );
+
+ // Check if RNG failed to generate data
+ //
+ if( rng_dl == 0 || ret != 0)
+ return POLARSSL_ERR_RSA_RNG_FAILED + ret;
+
+ p++;
+ }
+ *p++ = 0;
+ memcpy( p, input, ilen );
+ break;
+
+#if defined(POLARSSL_PKCS1_V21)
+ case RSA_PKCS_V21:
+
+ md_info = md_info_from_type( ctx->hash_id );
+ if( md_info == NULL )
+ return( POLARSSL_ERR_RSA_BAD_INPUT_DATA );
+
+ hlen = md_get_size( md_info );
+
+ if( olen < ilen + 2 * hlen + 2 || f_rng == NULL )
+ return( POLARSSL_ERR_RSA_BAD_INPUT_DATA );
+
+ memset( output, 0, olen );
+ memset( &md_ctx, 0, sizeof( md_context_t ) );
+
+ md_init_ctx( &md_ctx, md_info );
+
+ *p++ = 0;
+
+ // Generate a random octet string seed
+ //
+ if( ( ret = f_rng( p_rng, p, hlen ) ) != 0 )
+ return( POLARSSL_ERR_RSA_RNG_FAILED + ret );
+
+ p += hlen;
+
+ // Construct DB
+ //
+ md( md_info, p, 0, p );
+ p += hlen;
+ p += olen - 2 * hlen - 2 - ilen;
+ *p++ = 1;
+ memcpy( p, input, ilen );
+
+ // maskedDB: Apply dbMask to DB
+ //
+ mgf_mask( output + hlen + 1, olen - hlen - 1, output + 1, hlen,
+ &md_ctx );
+
+ // maskedSeed: Apply seedMask to seed
+ //
+ mgf_mask( output + 1, hlen, output + hlen + 1, olen - hlen - 1,
+ &md_ctx );
+ break;
+#endif
+
+ default:
+
+ return( POLARSSL_ERR_RSA_INVALID_PADDING );
+ }
+
+ return( ( mode == RSA_PUBLIC )
+ ? rsa_public( ctx, output, output )
+ : rsa_private( ctx, output, output ) );
+}
+
+/*
+ * Do an RSA operation, then remove the message padding
+ */
+int rsa_pkcs1_decrypt( rsa_context *ctx,
+ int mode, size_t *olen,
+ const unsigned char *input,
+ unsigned char *output,
+ size_t output_max_len)
+{
+ int ret;
+ size_t ilen;
+ unsigned char *p;
+ unsigned char buf[1024];
+#if defined(POLARSSL_PKCS1_V21)
+ unsigned char lhash[POLARSSL_MD_MAX_SIZE];
+ unsigned int hlen;
+ const md_info_t *md_info;
+ md_context_t md_ctx;
+#endif
+
+ ilen = ctx->len;
+
+ if( ilen < 16 || ilen > sizeof( buf ) )
+ return( POLARSSL_ERR_RSA_BAD_INPUT_DATA );
+
+ ret = ( mode == RSA_PUBLIC )
+ ? rsa_public( ctx, input, buf )
+ : rsa_private( ctx, input, buf );
+
+ if( ret != 0 )
+ return( ret );
+
+ p = buf;
+
+ switch( ctx->padding )
+ {
+ case RSA_PKCS_V15:
+
+ if( *p++ != 0 || *p++ != RSA_CRYPT )
+ return( POLARSSL_ERR_RSA_INVALID_PADDING );
+
+ while( *p != 0 )
+ {
+ if( p >= buf + ilen - 1 )
+ return( POLARSSL_ERR_RSA_INVALID_PADDING );
+ p++;
+ }
+ p++;
+ break;
+
+#if defined(POLARSSL_PKCS1_V21)
+ case RSA_PKCS_V21:
+
+ if( *p++ != 0 )
+ return( POLARSSL_ERR_RSA_INVALID_PADDING );
+
+ md_info = md_info_from_type( ctx->hash_id );
+ if( md_info == NULL )
+ return( POLARSSL_ERR_RSA_BAD_INPUT_DATA );
+
+ hlen = md_get_size( md_info );
+ memset( &md_ctx, 0, sizeof( md_context_t ) );
+
+ md_init_ctx( &md_ctx, md_info );
+
+ // Generate lHash
+ //
+ md( md_info, lhash, 0, lhash );
+
+ // seed: Apply seedMask to maskedSeed
+ //
+ mgf_mask( buf + 1, hlen, buf + hlen + 1, ilen - hlen - 1,
+ &md_ctx );
+
+ // DB: Apply dbMask to maskedDB
+ //
+ mgf_mask( buf + hlen + 1, ilen - hlen - 1, buf + 1, hlen,
+ &md_ctx );
+
+ p += hlen;
+
+ // Check validity
+ //
+ if( memcmp( lhash, p, hlen ) != 0 )
+ return( POLARSSL_ERR_RSA_INVALID_PADDING );
+
+ p += hlen;
+
+ while( *p == 0 && p < buf + ilen )
+ p++;
+
+ if( p == buf + ilen )
+ return( POLARSSL_ERR_RSA_INVALID_PADDING );
+
+ if( *p++ != 0x01 )
+ return( POLARSSL_ERR_RSA_INVALID_PADDING );
+
+ break;
+#endif
+
+ default:
+
+ return( POLARSSL_ERR_RSA_INVALID_PADDING );
+ }
+
+ if (ilen - (p - buf) > output_max_len)
+ return( POLARSSL_ERR_RSA_OUTPUT_TOO_LARGE );
+
+ *olen = ilen - (p - buf);
+ memcpy( output, p, *olen );
+
+ return( 0 );
+}
+
+/*
+ * Do an RSA operation to sign the message digest
+ */
+int rsa_pkcs1_sign( rsa_context *ctx,
+ int (*f_rng)(void *, unsigned char *, size_t),
+ void *p_rng,
+ int mode,
+ int hash_id,
+ unsigned int hashlen,
+ const unsigned char *hash,
+ unsigned char *sig )
+{
+ size_t nb_pad, olen;
+ unsigned char *p = sig;
+#if defined(POLARSSL_PKCS1_V21)
+ unsigned char salt[POLARSSL_MD_MAX_SIZE];
+ unsigned int slen, hlen, offset = 0;
+ int ret;
+ size_t msb;
+ const md_info_t *md_info;
+ md_context_t md_ctx;
+#else
+ (void) f_rng;
+ (void) p_rng;
+#endif
+
+ olen = ctx->len;
+
+ switch( ctx->padding )
+ {
+ case RSA_PKCS_V15:
+
+ switch( hash_id )
+ {
+ case SIG_RSA_RAW:
+ nb_pad = olen - 3 - hashlen;
+ break;
+
+ case SIG_RSA_MD2:
+ case SIG_RSA_MD4:
+ case SIG_RSA_MD5:
+ nb_pad = olen - 3 - 34;
+ break;
+
+ case SIG_RSA_SHA1:
+ nb_pad = olen - 3 - 35;
+ break;
+
+ case SIG_RSA_SHA224:
+ nb_pad = olen - 3 - 47;
+ break;
+
+ case SIG_RSA_SHA256:
+ nb_pad = olen - 3 - 51;
+ break;
+
+ case SIG_RSA_SHA384:
+ nb_pad = olen - 3 - 67;
+ break;
+
+ case SIG_RSA_SHA512:
+ nb_pad = olen - 3 - 83;
+ break;
+
+
+ default:
+ return( POLARSSL_ERR_RSA_BAD_INPUT_DATA );
+ }
+
+ if( nb_pad < 8 )
+ return( POLARSSL_ERR_RSA_BAD_INPUT_DATA );
+
+ *p++ = 0;
+ *p++ = RSA_SIGN;
+ memset( p, 0xFF, nb_pad );
+ p += nb_pad;
+ *p++ = 0;
+
+ switch( hash_id )
+ {
+ case SIG_RSA_RAW:
+ memcpy( p, hash, hashlen );
+ break;
+
+ case SIG_RSA_MD2:
+ memcpy( p, ASN1_HASH_MDX, 18 );
+ memcpy( p + 18, hash, 16 );
+ p[13] = 2; break;
+
+ case SIG_RSA_MD4:
+ memcpy( p, ASN1_HASH_MDX, 18 );
+ memcpy( p + 18, hash, 16 );
+ p[13] = 4; break;
+
+ case SIG_RSA_MD5:
+ memcpy( p, ASN1_HASH_MDX, 18 );
+ memcpy( p + 18, hash, 16 );
+ p[13] = 5; break;
+
+ case SIG_RSA_SHA1:
+ memcpy( p, ASN1_HASH_SHA1, 15 );
+ memcpy( p + 15, hash, 20 );
+ break;
+
+ case SIG_RSA_SHA224:
+ memcpy( p, ASN1_HASH_SHA2X, 19 );
+ memcpy( p + 19, hash, 28 );
+ p[1] += 28; p[14] = 4; p[18] += 28; break;
+
+ case SIG_RSA_SHA256:
+ memcpy( p, ASN1_HASH_SHA2X, 19 );
+ memcpy( p + 19, hash, 32 );
+ p[1] += 32; p[14] = 1; p[18] += 32; break;
+
+ case SIG_RSA_SHA384:
+ memcpy( p, ASN1_HASH_SHA2X, 19 );
+ memcpy( p + 19, hash, 48 );
+ p[1] += 48; p[14] = 2; p[18] += 48; break;
+
+ case SIG_RSA_SHA512:
+ memcpy( p, ASN1_HASH_SHA2X, 19 );
+ memcpy( p + 19, hash, 64 );
+ p[1] += 64; p[14] = 3; p[18] += 64; break;
+
+ default:
+ return( POLARSSL_ERR_RSA_BAD_INPUT_DATA );
+ }
+
+ break;
+
+#if defined(POLARSSL_PKCS1_V21)
+ case RSA_PKCS_V21:
+
+ if( f_rng == NULL )
+ return( POLARSSL_ERR_RSA_BAD_INPUT_DATA );
+
+ switch( hash_id )
+ {
+ case SIG_RSA_MD2:
+ case SIG_RSA_MD4:
+ case SIG_RSA_MD5:
+ hashlen = 16;
+ break;
+
+ case SIG_RSA_SHA1:
+ hashlen = 20;
+ break;
+
+ case SIG_RSA_SHA224:
+ hashlen = 28;
+ break;
+
+ case SIG_RSA_SHA256:
+ hashlen = 32;
+ break;
+
+ case SIG_RSA_SHA384:
+ hashlen = 48;
+ break;
+
+ case SIG_RSA_SHA512:
+ hashlen = 64;
+ break;
+
+ default:
+ return( POLARSSL_ERR_RSA_BAD_INPUT_DATA );
+ }
+
+ md_info = md_info_from_type( ctx->hash_id );
+ if( md_info == NULL )
+ return( POLARSSL_ERR_RSA_BAD_INPUT_DATA );
+
+ hlen = md_get_size( md_info );
+ slen = hlen;
+
+ memset( sig, 0, olen );
+ memset( &md_ctx, 0, sizeof( md_context_t ) );
+
+ md_init_ctx( &md_ctx, md_info );
+
+ msb = mpi_msb( &ctx->N ) - 1;
+
+ // Generate salt of length slen
+ //
+ if( ( ret = f_rng( p_rng, salt, slen ) ) != 0 )
+ return( POLARSSL_ERR_RSA_RNG_FAILED + ret );
+
+ // Note: EMSA-PSS encoding is over the length of N - 1 bits
+ //
+ msb = mpi_msb( &ctx->N ) - 1;
+ p += olen - hlen * 2 - 2;
+ *p++ = 0x01;
+ memcpy( p, salt, slen );
+ p += slen;
+
+ // Generate H = Hash( M' )
+ //
+ md_starts( &md_ctx );
+ md_update( &md_ctx, p, 8 );
+ md_update( &md_ctx, hash, hashlen );
+ md_update( &md_ctx, salt, slen );
+ md_finish( &md_ctx, p );
+
+ // Compensate for boundary condition when applying mask
+ //
+ if( msb % 8 == 0 )
+ offset = 1;
+
+ // maskedDB: Apply dbMask to DB
+ //
+ mgf_mask( sig + offset, olen - hlen - 1 - offset, p, hlen, &md_ctx );
+
+ msb = mpi_msb( &ctx->N ) - 1;
+ sig[0] &= 0xFF >> ( olen * 8 - msb );
+
+ p += hlen;
+ *p++ = 0xBC;
+ break;
+#endif
+
+ default:
+
+ return( POLARSSL_ERR_RSA_INVALID_PADDING );
+ }
+
+ return( ( mode == RSA_PUBLIC )
+ ? rsa_public( ctx, sig, sig )
+ : rsa_private( ctx, sig, sig ) );
+}
+
+/*
+ * Do an RSA operation and check the message digest
+ */
+int rsa_pkcs1_verify( rsa_context *ctx,
+ int mode,
+ int hash_id,
+ unsigned int hashlen,
+ const unsigned char *hash,
+ unsigned char *sig )
+{
+ int ret;
+ size_t len, siglen;
+ unsigned char *p, c;
+ unsigned char buf[1024];
+#if defined(POLARSSL_PKCS1_V21)
+ unsigned char result[POLARSSL_MD_MAX_SIZE];
+ unsigned char zeros[8];
+ unsigned int hlen;
+ size_t slen, msb;
+ const md_info_t *md_info;
+ md_context_t md_ctx;
+#endif
+ siglen = ctx->len;
+
+ if( siglen < 16 || siglen > sizeof( buf ) )
+ return( POLARSSL_ERR_RSA_BAD_INPUT_DATA );
+
+ ret = ( mode == RSA_PUBLIC )
+ ? rsa_public( ctx, sig, buf )
+ : rsa_private( ctx, sig, buf );
+
+ if( ret != 0 )
+ return( ret );
+
+ p = buf;
+
+ switch( ctx->padding )
+ {
+ case RSA_PKCS_V15:
+
+ if( *p++ != 0 || *p++ != RSA_SIGN )
+ return( POLARSSL_ERR_RSA_INVALID_PADDING );
+
+ while( *p != 0 )
+ {
+ if( p >= buf + siglen - 1 || *p != 0xFF )
+ return( POLARSSL_ERR_RSA_INVALID_PADDING );
+ p++;
+ }
+ p++;
+
+ len = siglen - ( p - buf );
+
+ if( len == 34 )
+ {
+ c = p[13];
+ p[13] = 0;
+
+ if( memcmp( p, ASN1_HASH_MDX, 18 ) != 0 )
+ return( POLARSSL_ERR_RSA_VERIFY_FAILED );
+
+ if( ( c == 2 && hash_id == SIG_RSA_MD2 ) ||
+ ( c == 4 && hash_id == SIG_RSA_MD4 ) ||
+ ( c == 5 && hash_id == SIG_RSA_MD5 ) )
+ {
+ if( memcmp( p + 18, hash, 16 ) == 0 )
+ return( 0 );
+ else
+ return( POLARSSL_ERR_RSA_VERIFY_FAILED );
+ }
+ }
+
+ if( len == 35 && hash_id == SIG_RSA_SHA1 )
+ {
+ if( memcmp( p, ASN1_HASH_SHA1, 15 ) == 0 &&
+ memcmp( p + 15, hash, 20 ) == 0 )
+ return( 0 );
+ else
+ return( POLARSSL_ERR_RSA_VERIFY_FAILED );
+ }
+ if( ( len == 19 + 28 && p[14] == 4 && hash_id == SIG_RSA_SHA224 ) ||
+ ( len == 19 + 32 && p[14] == 1 && hash_id == SIG_RSA_SHA256 ) ||
+ ( len == 19 + 48 && p[14] == 2 && hash_id == SIG_RSA_SHA384 ) ||
+ ( len == 19 + 64 && p[14] == 3 && hash_id == SIG_RSA_SHA512 ) )
+ {
+ c = p[1] - 17;
+ p[1] = 17;
+ p[14] = 0;
+
+ if( p[18] == c &&
+ memcmp( p, ASN1_HASH_SHA2X, 18 ) == 0 &&
+ memcmp( p + 19, hash, c ) == 0 )
+ return( 0 );
+ else
+ return( POLARSSL_ERR_RSA_VERIFY_FAILED );
+ }
+
+ if( len == hashlen && hash_id == SIG_RSA_RAW )
+ {
+ if( memcmp( p, hash, hashlen ) == 0 )
+ return( 0 );
+ else
+ return( POLARSSL_ERR_RSA_VERIFY_FAILED );
+ }
+
+ break;
+
+#if defined(POLARSSL_PKCS1_V21)
+ case RSA_PKCS_V21:
+
+ if( buf[siglen - 1] != 0xBC )
+ return( POLARSSL_ERR_RSA_INVALID_PADDING );
+
+ switch( hash_id )
+ {
+ case SIG_RSA_MD2:
+ case SIG_RSA_MD4:
+ case SIG_RSA_MD5:
+ hashlen = 16;
+ break;
+
+ case SIG_RSA_SHA1:
+ hashlen = 20;
+ break;
+
+ case SIG_RSA_SHA224:
+ hashlen = 28;
+ break;
+
+ case SIG_RSA_SHA256:
+ hashlen = 32;
+ break;
+
+ case SIG_RSA_SHA384:
+ hashlen = 48;
+ break;
+
+ case SIG_RSA_SHA512:
+ hashlen = 64;
+ break;
+
+ default:
+ return( POLARSSL_ERR_RSA_BAD_INPUT_DATA );
+ }
+
+ md_info = md_info_from_type( ctx->hash_id );
+ if( md_info == NULL )
+ return( POLARSSL_ERR_RSA_BAD_INPUT_DATA );
+
+ hlen = md_get_size( md_info );
+ slen = siglen - hlen - 1;
+
+ memset( &md_ctx, 0, sizeof( md_context_t ) );
+ memset( zeros, 0, 8 );
+
+ md_init_ctx( &md_ctx, md_info );
+
+ // Note: EMSA-PSS verification is over the length of N - 1 bits
+ //
+ msb = mpi_msb( &ctx->N ) - 1;
+
+ // Compensate for boundary condition when applying mask
+ //
+ if( msb % 8 == 0 )
+ {
+ p++;
+ siglen -= 1;
+ }
+ if( buf[0] >> ( 8 - siglen * 8 + msb ) )
+ return( POLARSSL_ERR_RSA_BAD_INPUT_DATA );
+
+ mgf_mask( p, siglen - hlen - 1, p + siglen - hlen - 1, hlen, &md_ctx );
+
+ buf[0] &= 0xFF >> ( siglen * 8 - msb );
+
+ while( *p == 0 && p < buf + siglen )
+ p++;
+
+ if( p == buf + siglen )
+ return( POLARSSL_ERR_RSA_INVALID_PADDING );
+
+ if( *p++ != 0x01 )
+ return( POLARSSL_ERR_RSA_INVALID_PADDING );
+
+ slen -= p - buf;
+
+ // Generate H = Hash( M' )
+ //
+ md_starts( &md_ctx );
+ md_update( &md_ctx, zeros, 8 );
+ md_update( &md_ctx, hash, hashlen );
+ md_update( &md_ctx, p, slen );
+ md_finish( &md_ctx, result );
+
+ if( memcmp( p + slen, result, hlen ) == 0 )
+ return( 0 );
+ else
+ return( POLARSSL_ERR_RSA_VERIFY_FAILED );
+#endif
+
+ default:
+
+ return( POLARSSL_ERR_RSA_INVALID_PADDING );
+ }
+
+ return( POLARSSL_ERR_RSA_INVALID_PADDING );
+}
+
+/*
+ * Free the components of an RSA key
+ */
+void rsa_free( rsa_context *ctx )
+{
+ mpi_free( &ctx->RQ ); mpi_free( &ctx->RP ); mpi_free( &ctx->RN );
+ mpi_free( &ctx->QP ); mpi_free( &ctx->DQ ); mpi_free( &ctx->DP );
+ mpi_free( &ctx->Q ); mpi_free( &ctx->P ); mpi_free( &ctx->D );
+ mpi_free( &ctx->E ); mpi_free( &ctx->N );
+}
+
+#if defined(POLARSSL_SELF_TEST)
+
+#include "polarssl/sha1.h"
+
+/*
+ * Example RSA-1024 keypair, for test purposes
+ */
+#define KEY_LEN 128
+
+#define RSA_N "9292758453063D803DD603D5E777D788" \
+ "8ED1D5BF35786190FA2F23EBC0848AEA" \
+ "DDA92CA6C3D80B32C4D109BE0F36D6AE" \
+ "7130B9CED7ACDF54CFC7555AC14EEBAB" \
+ "93A89813FBF3C4F8066D2D800F7C38A8" \
+ "1AE31942917403FF4946B0A83D3D3E05" \
+ "EE57C6F5F5606FB5D4BC6CD34EE0801A" \
+ "5E94BB77B07507233A0BC7BAC8F90F79"
+
+#define RSA_E "10001"
+
+#define RSA_D "24BF6185468786FDD303083D25E64EFC" \
+ "66CA472BC44D253102F8B4A9D3BFA750" \
+ "91386C0077937FE33FA3252D28855837" \
+ "AE1B484A8A9A45F7EE8C0C634F99E8CD" \
+ "DF79C5CE07EE72C7F123142198164234" \
+ "CABB724CF78B8173B9F880FC86322407" \
+ "AF1FEDFDDE2BEB674CA15F3E81A1521E" \
+ "071513A1E85B5DFA031F21ECAE91A34D"
+
+#define RSA_P "C36D0EB7FCD285223CFB5AABA5BDA3D8" \
+ "2C01CAD19EA484A87EA4377637E75500" \
+ "FCB2005C5C7DD6EC4AC023CDA285D796" \
+ "C3D9E75E1EFC42488BB4F1D13AC30A57"
+
+#define RSA_Q "C000DF51A7C77AE8D7C7370C1FF55B69" \
+ "E211C2B9E5DB1ED0BF61D0D9899620F4" \
+ "910E4168387E3C30AA1E00C339A79508" \
+ "8452DD96A9A5EA5D9DCA68DA636032AF"
+
+#define RSA_DP "C1ACF567564274FB07A0BBAD5D26E298" \
+ "3C94D22288ACD763FD8E5600ED4A702D" \
+ "F84198A5F06C2E72236AE490C93F07F8" \
+ "3CC559CD27BC2D1CA488811730BB5725"
+
+#define RSA_DQ "4959CBF6F8FEF750AEE6977C155579C7" \
+ "D8AAEA56749EA28623272E4F7D0592AF" \
+ "7C1F1313CAC9471B5C523BFE592F517B" \
+ "407A1BD76C164B93DA2D32A383E58357"
+
+#define RSA_QP "9AE7FBC99546432DF71896FC239EADAE" \
+ "F38D18D2B2F0E2DD275AA977E2BF4411" \
+ "F5A3B2A5D33605AEBBCCBA7FEB9F2D2F" \
+ "A74206CEC169D74BF5A8C50D6F48EA08"
+
+#define PT_LEN 24
+#define RSA_PT "\xAA\xBB\xCC\x03\x02\x01\x00\xFF\xFF\xFF\xFF\xFF" \
+ "\x11\x22\x33\x0A\x0B\x0C\xCC\xDD\xDD\xDD\xDD\xDD"
+
+static int myrand( void *rng_state, unsigned char *output, size_t len )
+{
+ size_t i;
+
+ if( rng_state != NULL )
+ rng_state = NULL;
+
+ for( i = 0; i < len; ++i )
+ output[i] = rand();
+
+ return( 0 );
+}
+
+/*
+ * Checkup routine
+ */
+int rsa_self_test( int verbose )
+{
+ size_t len;
+ rsa_context rsa;
+ unsigned char rsa_plaintext[PT_LEN];
+ unsigned char rsa_decrypted[PT_LEN];
+ unsigned char rsa_ciphertext[KEY_LEN];
+#if defined(POLARSSL_SHA1_C)
+ unsigned char sha1sum[20];
+#endif
+
+ rsa_init( &rsa, RSA_PKCS_V15, 0 );
+
+ rsa.len = KEY_LEN;
+ mpi_read_string( &rsa.N , 16, RSA_N );
+ mpi_read_string( &rsa.E , 16, RSA_E );
+ mpi_read_string( &rsa.D , 16, RSA_D );
+ mpi_read_string( &rsa.P , 16, RSA_P );
+ mpi_read_string( &rsa.Q , 16, RSA_Q );
+ mpi_read_string( &rsa.DP, 16, RSA_DP );
+ mpi_read_string( &rsa.DQ, 16, RSA_DQ );
+ mpi_read_string( &rsa.QP, 16, RSA_QP );
+
+ if( verbose != 0 )
+ printf( " RSA key validation: " );
+
+ if( rsa_check_pubkey( &rsa ) != 0 ||
+ rsa_check_privkey( &rsa ) != 0 )
+ {
+ if( verbose != 0 )
+ printf( "failed\n" );
+
+ return( 1 );
+ }
+
+ if( verbose != 0 )
+ printf( "passed\n PKCS#1 encryption : " );
+
+ memcpy( rsa_plaintext, RSA_PT, PT_LEN );
+
+ if( rsa_pkcs1_encrypt( &rsa, &myrand, NULL, RSA_PUBLIC, PT_LEN,
+ rsa_plaintext, rsa_ciphertext ) != 0 )
+ {
+ if( verbose != 0 )
+ printf( "failed\n" );
+
+ return( 1 );
+ }
+
+ if( verbose != 0 )
+ printf( "passed\n PKCS#1 decryption : " );
+
+ if( rsa_pkcs1_decrypt( &rsa, RSA_PRIVATE, &len,
+ rsa_ciphertext, rsa_decrypted,
+ sizeof(rsa_decrypted) ) != 0 )
+ {
+ if( verbose != 0 )
+ printf( "failed\n" );
+
+ return( 1 );
+ }
+
+ if( memcmp( rsa_decrypted, rsa_plaintext, len ) != 0 )
+ {
+ if( verbose != 0 )
+ printf( "failed\n" );
+
+ return( 1 );
+ }
+
+#if defined(POLARSSL_SHA1_C)
+ if( verbose != 0 )
+ printf( "passed\n PKCS#1 data sign : " );
+
+ sha1( rsa_plaintext, PT_LEN, sha1sum );
+
+ if( rsa_pkcs1_sign( &rsa, NULL, NULL, RSA_PRIVATE, SIG_RSA_SHA1, 20,
+ sha1sum, rsa_ciphertext ) != 0 )
+ {
+ if( verbose != 0 )
+ printf( "failed\n" );
+
+ return( 1 );
+ }
+
+ if( verbose != 0 )
+ printf( "passed\n PKCS#1 sig. verify: " );
+
+ if( rsa_pkcs1_verify( &rsa, RSA_PUBLIC, SIG_RSA_SHA1, 20,
+ sha1sum, rsa_ciphertext ) != 0 )
+ {
+ if( verbose != 0 )
+ printf( "failed\n" );
+
+ return( 1 );
+ }
+
+ if( verbose != 0 )
+ printf( "passed\n\n" );
+#endif /* POLARSSL_SHA1_C */
+
+ rsa_free( &rsa );
+
+ return( 0 );
+}
+
+#endif
+
+#endif
--- /dev/null
+/*
+ * FIPS-180-1 compliant SHA-1 implementation
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+/*
+ * The SHA-1 standard was published by NIST in 1993.
+ *
+ * http://www.itl.nist.gov/fipspubs/fip180-1.htm
+ */
+
+#include "polarssl/config.h"
+
+#if defined(POLARSSL_SHA1_C)
+
+#include "polarssl/sha1.h"
+
+#if defined(POLARSSL_FS_IO) || defined(POLARSSL_SELF_TEST)
+#include <stdio.h>
+#endif
+
+/*
+ * 32-bit integer manipulation macros (big endian)
+ */
+#ifndef GET_ULONG_BE
+#define GET_ULONG_BE(n,b,i) \
+{ \
+ (n) = ( (unsigned long) (b)[(i) ] << 24 ) \
+ | ( (unsigned long) (b)[(i) + 1] << 16 ) \
+ | ( (unsigned long) (b)[(i) + 2] << 8 ) \
+ | ( (unsigned long) (b)[(i) + 3] ); \
+}
+#endif
+
+#ifndef PUT_ULONG_BE
+#define PUT_ULONG_BE(n,b,i) \
+{ \
+ (b)[(i) ] = (unsigned char) ( (n) >> 24 ); \
+ (b)[(i) + 1] = (unsigned char) ( (n) >> 16 ); \
+ (b)[(i) + 2] = (unsigned char) ( (n) >> 8 ); \
+ (b)[(i) + 3] = (unsigned char) ( (n) ); \
+}
+#endif
+
+/*
+ * SHA-1 context setup
+ */
+void sha1_starts( sha1_context *ctx )
+{
+ ctx->total[0] = 0;
+ ctx->total[1] = 0;
+
+ ctx->state[0] = 0x67452301;
+ ctx->state[1] = 0xEFCDAB89;
+ ctx->state[2] = 0x98BADCFE;
+ ctx->state[3] = 0x10325476;
+ ctx->state[4] = 0xC3D2E1F0;
+}
+
+static void sha1_process( sha1_context *ctx, const unsigned char data[64] )
+{
+ unsigned long temp, W[16], A, B, C, D, E;
+
+ GET_ULONG_BE( W[ 0], data, 0 );
+ GET_ULONG_BE( W[ 1], data, 4 );
+ GET_ULONG_BE( W[ 2], data, 8 );
+ GET_ULONG_BE( W[ 3], data, 12 );
+ GET_ULONG_BE( W[ 4], data, 16 );
+ GET_ULONG_BE( W[ 5], data, 20 );
+ GET_ULONG_BE( W[ 6], data, 24 );
+ GET_ULONG_BE( W[ 7], data, 28 );
+ GET_ULONG_BE( W[ 8], data, 32 );
+ GET_ULONG_BE( W[ 9], data, 36 );
+ GET_ULONG_BE( W[10], data, 40 );
+ GET_ULONG_BE( W[11], data, 44 );
+ GET_ULONG_BE( W[12], data, 48 );
+ GET_ULONG_BE( W[13], data, 52 );
+ GET_ULONG_BE( W[14], data, 56 );
+ GET_ULONG_BE( W[15], data, 60 );
+
+#define S(x,n) ((x << n) | ((x & 0xFFFFFFFF) >> (32 - n)))
+
+#define R(t) \
+( \
+ temp = W[(t - 3) & 0x0F] ^ W[(t - 8) & 0x0F] ^ \
+ W[(t - 14) & 0x0F] ^ W[ t & 0x0F], \
+ ( W[t & 0x0F] = S(temp,1) ) \
+)
+
+#define P(a,b,c,d,e,x) \
+{ \
+ e += S(a,5) + F(b,c,d) + K + x; b = S(b,30); \
+}
+
+ A = ctx->state[0];
+ B = ctx->state[1];
+ C = ctx->state[2];
+ D = ctx->state[3];
+ E = ctx->state[4];
+
+#define F(x,y,z) (z ^ (x & (y ^ z)))
+#define K 0x5A827999
+
+ P( A, B, C, D, E, W[0] );
+ P( E, A, B, C, D, W[1] );
+ P( D, E, A, B, C, W[2] );
+ P( C, D, E, A, B, W[3] );
+ P( B, C, D, E, A, W[4] );
+ P( A, B, C, D, E, W[5] );
+ P( E, A, B, C, D, W[6] );
+ P( D, E, A, B, C, W[7] );
+ P( C, D, E, A, B, W[8] );
+ P( B, C, D, E, A, W[9] );
+ P( A, B, C, D, E, W[10] );
+ P( E, A, B, C, D, W[11] );
+ P( D, E, A, B, C, W[12] );
+ P( C, D, E, A, B, W[13] );
+ P( B, C, D, E, A, W[14] );
+ P( A, B, C, D, E, W[15] );
+ P( E, A, B, C, D, R(16) );
+ P( D, E, A, B, C, R(17) );
+ P( C, D, E, A, B, R(18) );
+ P( B, C, D, E, A, R(19) );
+
+#undef K
+#undef F
+
+#define F(x,y,z) (x ^ y ^ z)
+#define K 0x6ED9EBA1
+
+ P( A, B, C, D, E, R(20) );
+ P( E, A, B, C, D, R(21) );
+ P( D, E, A, B, C, R(22) );
+ P( C, D, E, A, B, R(23) );
+ P( B, C, D, E, A, R(24) );
+ P( A, B, C, D, E, R(25) );
+ P( E, A, B, C, D, R(26) );
+ P( D, E, A, B, C, R(27) );
+ P( C, D, E, A, B, R(28) );
+ P( B, C, D, E, A, R(29) );
+ P( A, B, C, D, E, R(30) );
+ P( E, A, B, C, D, R(31) );
+ P( D, E, A, B, C, R(32) );
+ P( C, D, E, A, B, R(33) );
+ P( B, C, D, E, A, R(34) );
+ P( A, B, C, D, E, R(35) );
+ P( E, A, B, C, D, R(36) );
+ P( D, E, A, B, C, R(37) );
+ P( C, D, E, A, B, R(38) );
+ P( B, C, D, E, A, R(39) );
+
+#undef K
+#undef F
+
+#define F(x,y,z) ((x & y) | (z & (x | y)))
+#define K 0x8F1BBCDC
+
+ P( A, B, C, D, E, R(40) );
+ P( E, A, B, C, D, R(41) );
+ P( D, E, A, B, C, R(42) );
+ P( C, D, E, A, B, R(43) );
+ P( B, C, D, E, A, R(44) );
+ P( A, B, C, D, E, R(45) );
+ P( E, A, B, C, D, R(46) );
+ P( D, E, A, B, C, R(47) );
+ P( C, D, E, A, B, R(48) );
+ P( B, C, D, E, A, R(49) );
+ P( A, B, C, D, E, R(50) );
+ P( E, A, B, C, D, R(51) );
+ P( D, E, A, B, C, R(52) );
+ P( C, D, E, A, B, R(53) );
+ P( B, C, D, E, A, R(54) );
+ P( A, B, C, D, E, R(55) );
+ P( E, A, B, C, D, R(56) );
+ P( D, E, A, B, C, R(57) );
+ P( C, D, E, A, B, R(58) );
+ P( B, C, D, E, A, R(59) );
+
+#undef K
+#undef F
+
+#define F(x,y,z) (x ^ y ^ z)
+#define K 0xCA62C1D6
+
+ P( A, B, C, D, E, R(60) );
+ P( E, A, B, C, D, R(61) );
+ P( D, E, A, B, C, R(62) );
+ P( C, D, E, A, B, R(63) );
+ P( B, C, D, E, A, R(64) );
+ P( A, B, C, D, E, R(65) );
+ P( E, A, B, C, D, R(66) );
+ P( D, E, A, B, C, R(67) );
+ P( C, D, E, A, B, R(68) );
+ P( B, C, D, E, A, R(69) );
+ P( A, B, C, D, E, R(70) );
+ P( E, A, B, C, D, R(71) );
+ P( D, E, A, B, C, R(72) );
+ P( C, D, E, A, B, R(73) );
+ P( B, C, D, E, A, R(74) );
+ P( A, B, C, D, E, R(75) );
+ P( E, A, B, C, D, R(76) );
+ P( D, E, A, B, C, R(77) );
+ P( C, D, E, A, B, R(78) );
+ P( B, C, D, E, A, R(79) );
+
+#undef K
+#undef F
+
+ ctx->state[0] += A;
+ ctx->state[1] += B;
+ ctx->state[2] += C;
+ ctx->state[3] += D;
+ ctx->state[4] += E;
+}
+
+/*
+ * SHA-1 process buffer
+ */
+void sha1_update( sha1_context *ctx, const unsigned char *input, size_t ilen )
+{
+ size_t fill;
+ unsigned long left;
+
+ if( ilen <= 0 )
+ return;
+
+ left = ctx->total[0] & 0x3F;
+ fill = 64 - left;
+
+ ctx->total[0] += (unsigned long) ilen;
+ ctx->total[0] &= 0xFFFFFFFF;
+
+ if( ctx->total[0] < (unsigned long) ilen )
+ ctx->total[1]++;
+
+ if( left && ilen >= fill )
+ {
+ memcpy( (void *) (ctx->buffer + left),
+ (void *) input, fill );
+ sha1_process( ctx, ctx->buffer );
+ input += fill;
+ ilen -= fill;
+ left = 0;
+ }
+
+ while( ilen >= 64 )
+ {
+ sha1_process( ctx, input );
+ input += 64;
+ ilen -= 64;
+ }
+
+ if( ilen > 0 )
+ {
+ memcpy( (void *) (ctx->buffer + left),
+ (void *) input, ilen );
+ }
+}
+
+static const unsigned char sha1_padding[64] =
+{
+ 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+};
+
+/*
+ * SHA-1 final digest
+ */
+void sha1_finish( sha1_context *ctx, unsigned char output[20] )
+{
+ unsigned long last, padn;
+ unsigned long high, low;
+ unsigned char msglen[8];
+
+ high = ( ctx->total[0] >> 29 )
+ | ( ctx->total[1] << 3 );
+ low = ( ctx->total[0] << 3 );
+
+ PUT_ULONG_BE( high, msglen, 0 );
+ PUT_ULONG_BE( low, msglen, 4 );
+
+ last = ctx->total[0] & 0x3F;
+ padn = ( last < 56 ) ? ( 56 - last ) : ( 120 - last );
+
+ sha1_update( ctx, (unsigned char *) sha1_padding, padn );
+ sha1_update( ctx, msglen, 8 );
+
+ PUT_ULONG_BE( ctx->state[0], output, 0 );
+ PUT_ULONG_BE( ctx->state[1], output, 4 );
+ PUT_ULONG_BE( ctx->state[2], output, 8 );
+ PUT_ULONG_BE( ctx->state[3], output, 12 );
+ PUT_ULONG_BE( ctx->state[4], output, 16 );
+}
+
+/*
+ * output = SHA-1( input buffer )
+ */
+void sha1( const unsigned char *input, size_t ilen, unsigned char output[20] )
+{
+ sha1_context ctx;
+
+ sha1_starts( &ctx );
+ sha1_update( &ctx, input, ilen );
+ sha1_finish( &ctx, output );
+
+ memset( &ctx, 0, sizeof( sha1_context ) );
+}
+
+#if defined(POLARSSL_FS_IO)
+/*
+ * output = SHA-1( file contents )
+ */
+int sha1_file( const char *path, unsigned char output[20] )
+{
+ FILE *f;
+ size_t n;
+ sha1_context ctx;
+ unsigned char buf[1024];
+
+ if( ( f = fopen( path, "rb" ) ) == NULL )
+ return( POLARSSL_ERR_SHA1_FILE_IO_ERROR );
+
+ sha1_starts( &ctx );
+
+ while( ( n = fread( buf, 1, sizeof( buf ), f ) ) > 0 )
+ sha1_update( &ctx, buf, n );
+
+ sha1_finish( &ctx, output );
+
+ memset( &ctx, 0, sizeof( sha1_context ) );
+
+ if( ferror( f ) != 0 )
+ {
+ fclose( f );
+ return( POLARSSL_ERR_SHA1_FILE_IO_ERROR );
+ }
+
+ fclose( f );
+ return( 0 );
+}
+#endif /* POLARSSL_FS_IO */
+
+/*
+ * SHA-1 HMAC context setup
+ */
+void sha1_hmac_starts( sha1_context *ctx, const unsigned char *key, size_t keylen )
+{
+ size_t i;
+ unsigned char sum[20];
+
+ if( keylen > 64 )
+ {
+ sha1( key, keylen, sum );
+ keylen = 20;
+ key = sum;
+ }
+
+ memset( ctx->ipad, 0x36, 64 );
+ memset( ctx->opad, 0x5C, 64 );
+
+ for( i = 0; i < keylen; i++ )
+ {
+ ctx->ipad[i] = (unsigned char)( ctx->ipad[i] ^ key[i] );
+ ctx->opad[i] = (unsigned char)( ctx->opad[i] ^ key[i] );
+ }
+
+ sha1_starts( ctx );
+ sha1_update( ctx, ctx->ipad, 64 );
+
+ memset( sum, 0, sizeof( sum ) );
+}
+
+/*
+ * SHA-1 HMAC process buffer
+ */
+void sha1_hmac_update( sha1_context *ctx, const unsigned char *input, size_t ilen )
+{
+ sha1_update( ctx, input, ilen );
+}
+
+/*
+ * SHA-1 HMAC final digest
+ */
+void sha1_hmac_finish( sha1_context *ctx, unsigned char output[20] )
+{
+ unsigned char tmpbuf[20];
+
+ sha1_finish( ctx, tmpbuf );
+ sha1_starts( ctx );
+ sha1_update( ctx, ctx->opad, 64 );
+ sha1_update( ctx, tmpbuf, 20 );
+ sha1_finish( ctx, output );
+
+ memset( tmpbuf, 0, sizeof( tmpbuf ) );
+}
+
+/*
+ * SHA1 HMAC context reset
+ */
+void sha1_hmac_reset( sha1_context *ctx )
+{
+ sha1_starts( ctx );
+ sha1_update( ctx, ctx->ipad, 64 );
+}
+
+/*
+ * output = HMAC-SHA-1( hmac key, input buffer )
+ */
+void sha1_hmac( const unsigned char *key, size_t keylen,
+ const unsigned char *input, size_t ilen,
+ unsigned char output[20] )
+{
+ sha1_context ctx;
+
+ sha1_hmac_starts( &ctx, key, keylen );
+ sha1_hmac_update( &ctx, input, ilen );
+ sha1_hmac_finish( &ctx, output );
+
+ memset( &ctx, 0, sizeof( sha1_context ) );
+}
+
+#if defined(POLARSSL_SELF_TEST)
+/*
+ * FIPS-180-1 test vectors
+ */
+static unsigned char sha1_test_buf[3][57] =
+{
+ { "abc" },
+ { "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq" },
+ { "" }
+};
+
+static const int sha1_test_buflen[3] =
+{
+ 3, 56, 1000
+};
+
+static const unsigned char sha1_test_sum[3][20] =
+{
+ { 0xA9, 0x99, 0x3E, 0x36, 0x47, 0x06, 0x81, 0x6A, 0xBA, 0x3E,
+ 0x25, 0x71, 0x78, 0x50, 0xC2, 0x6C, 0x9C, 0xD0, 0xD8, 0x9D },
+ { 0x84, 0x98, 0x3E, 0x44, 0x1C, 0x3B, 0xD2, 0x6E, 0xBA, 0xAE,
+ 0x4A, 0xA1, 0xF9, 0x51, 0x29, 0xE5, 0xE5, 0x46, 0x70, 0xF1 },
+ { 0x34, 0xAA, 0x97, 0x3C, 0xD4, 0xC4, 0xDA, 0xA4, 0xF6, 0x1E,
+ 0xEB, 0x2B, 0xDB, 0xAD, 0x27, 0x31, 0x65, 0x34, 0x01, 0x6F }
+};
+
+/*
+ * RFC 2202 test vectors
+ */
+static unsigned char sha1_hmac_test_key[7][26] =
+{
+ { "\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B"
+ "\x0B\x0B\x0B\x0B" },
+ { "Jefe" },
+ { "\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA"
+ "\xAA\xAA\xAA\xAA" },
+ { "\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0A\x0B\x0C\x0D\x0E\x0F\x10"
+ "\x11\x12\x13\x14\x15\x16\x17\x18\x19" },
+ { "\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C"
+ "\x0C\x0C\x0C\x0C" },
+ { "" }, /* 0xAA 80 times */
+ { "" }
+};
+
+static const int sha1_hmac_test_keylen[7] =
+{
+ 20, 4, 20, 25, 20, 80, 80
+};
+
+static unsigned char sha1_hmac_test_buf[7][74] =
+{
+ { "Hi There" },
+ { "what do ya want for nothing?" },
+ { "\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD"
+ "\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD"
+ "\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD"
+ "\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD"
+ "\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD" },
+ { "\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD"
+ "\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD"
+ "\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD"
+ "\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD"
+ "\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD" },
+ { "Test With Truncation" },
+ { "Test Using Larger Than Block-Size Key - Hash Key First" },
+ { "Test Using Larger Than Block-Size Key and Larger"
+ " Than One Block-Size Data" }
+};
+
+static const int sha1_hmac_test_buflen[7] =
+{
+ 8, 28, 50, 50, 20, 54, 73
+};
+
+static const unsigned char sha1_hmac_test_sum[7][20] =
+{
+ { 0xB6, 0x17, 0x31, 0x86, 0x55, 0x05, 0x72, 0x64, 0xE2, 0x8B,
+ 0xC0, 0xB6, 0xFB, 0x37, 0x8C, 0x8E, 0xF1, 0x46, 0xBE, 0x00 },
+ { 0xEF, 0xFC, 0xDF, 0x6A, 0xE5, 0xEB, 0x2F, 0xA2, 0xD2, 0x74,
+ 0x16, 0xD5, 0xF1, 0x84, 0xDF, 0x9C, 0x25, 0x9A, 0x7C, 0x79 },
+ { 0x12, 0x5D, 0x73, 0x42, 0xB9, 0xAC, 0x11, 0xCD, 0x91, 0xA3,
+ 0x9A, 0xF4, 0x8A, 0xA1, 0x7B, 0x4F, 0x63, 0xF1, 0x75, 0xD3 },
+ { 0x4C, 0x90, 0x07, 0xF4, 0x02, 0x62, 0x50, 0xC6, 0xBC, 0x84,
+ 0x14, 0xF9, 0xBF, 0x50, 0xC8, 0x6C, 0x2D, 0x72, 0x35, 0xDA },
+ { 0x4C, 0x1A, 0x03, 0x42, 0x4B, 0x55, 0xE0, 0x7F, 0xE7, 0xF2,
+ 0x7B, 0xE1 },
+ { 0xAA, 0x4A, 0xE5, 0xE1, 0x52, 0x72, 0xD0, 0x0E, 0x95, 0x70,
+ 0x56, 0x37, 0xCE, 0x8A, 0x3B, 0x55, 0xED, 0x40, 0x21, 0x12 },
+ { 0xE8, 0xE9, 0x9D, 0x0F, 0x45, 0x23, 0x7D, 0x78, 0x6D, 0x6B,
+ 0xBA, 0xA7, 0x96, 0x5C, 0x78, 0x08, 0xBB, 0xFF, 0x1A, 0x91 }
+};
+
+/*
+ * Checkup routine
+ */
+int sha1_self_test( int verbose )
+{
+ int i, j, buflen;
+ unsigned char buf[1024];
+ unsigned char sha1sum[20];
+ sha1_context ctx;
+
+ /*
+ * SHA-1
+ */
+ for( i = 0; i < 3; i++ )
+ {
+ if( verbose != 0 )
+ printf( " SHA-1 test #%d: ", i + 1 );
+
+ sha1_starts( &ctx );
+
+ if( i == 2 )
+ {
+ memset( buf, 'a', buflen = 1000 );
+
+ for( j = 0; j < 1000; j++ )
+ sha1_update( &ctx, buf, buflen );
+ }
+ else
+ sha1_update( &ctx, sha1_test_buf[i],
+ sha1_test_buflen[i] );
+
+ sha1_finish( &ctx, sha1sum );
+
+ if( memcmp( sha1sum, sha1_test_sum[i], 20 ) != 0 )
+ {
+ if( verbose != 0 )
+ printf( "failed\n" );
+
+ return( 1 );
+ }
+
+ if( verbose != 0 )
+ printf( "passed\n" );
+ }
+
+ if( verbose != 0 )
+ printf( "\n" );
+
+ for( i = 0; i < 7; i++ )
+ {
+ if( verbose != 0 )
+ printf( " HMAC-SHA-1 test #%d: ", i + 1 );
+
+ if( i == 5 || i == 6 )
+ {
+ memset( buf, '\xAA', buflen = 80 );
+ sha1_hmac_starts( &ctx, buf, buflen );
+ }
+ else
+ sha1_hmac_starts( &ctx, sha1_hmac_test_key[i],
+ sha1_hmac_test_keylen[i] );
+
+ sha1_hmac_update( &ctx, sha1_hmac_test_buf[i],
+ sha1_hmac_test_buflen[i] );
+
+ sha1_hmac_finish( &ctx, sha1sum );
+
+ buflen = ( i == 4 ) ? 12 : 20;
+
+ if( memcmp( sha1sum, sha1_hmac_test_sum[i], buflen ) != 0 )
+ {
+ if( verbose != 0 )
+ printf( "failed\n" );
+
+ return( 1 );
+ }
+
+ if( verbose != 0 )
+ printf( "passed\n" );
+ }
+
+ if( verbose != 0 )
+ printf( "\n" );
+
+ return( 0 );
+}
+
+#endif
+
+#endif
--- /dev/null
+/*
+ * FIPS-180-2 compliant SHA-256 implementation
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+/*
+ * The SHA-256 Secure Hash Standard was published by NIST in 2002.
+ *
+ * http://csrc.nist.gov/publications/fips/fips180-2/fips180-2.pdf
+ */
+
+#include "polarssl/config.h"
+
+#if defined(POLARSSL_SHA2_C)
+
+#include "polarssl/sha2.h"
+
+#if defined(POLARSSL_FS_IO) || defined(POLARSSL_SELF_TEST)
+#include <stdio.h>
+#endif
+
+/*
+ * 32-bit integer manipulation macros (big endian)
+ */
+#ifndef GET_ULONG_BE
+#define GET_ULONG_BE(n,b,i) \
+{ \
+ (n) = ( (unsigned long) (b)[(i) ] << 24 ) \
+ | ( (unsigned long) (b)[(i) + 1] << 16 ) \
+ | ( (unsigned long) (b)[(i) + 2] << 8 ) \
+ | ( (unsigned long) (b)[(i) + 3] ); \
+}
+#endif
+
+#ifndef PUT_ULONG_BE
+#define PUT_ULONG_BE(n,b,i) \
+{ \
+ (b)[(i) ] = (unsigned char) ( (n) >> 24 ); \
+ (b)[(i) + 1] = (unsigned char) ( (n) >> 16 ); \
+ (b)[(i) + 2] = (unsigned char) ( (n) >> 8 ); \
+ (b)[(i) + 3] = (unsigned char) ( (n) ); \
+}
+#endif
+
+/*
+ * SHA-256 context setup
+ */
+void sha2_starts( sha2_context *ctx, int is224 )
+{
+ ctx->total[0] = 0;
+ ctx->total[1] = 0;
+
+ if( is224 == 0 )
+ {
+ /* SHA-256 */
+ ctx->state[0] = 0x6A09E667;
+ ctx->state[1] = 0xBB67AE85;
+ ctx->state[2] = 0x3C6EF372;
+ ctx->state[3] = 0xA54FF53A;
+ ctx->state[4] = 0x510E527F;
+ ctx->state[5] = 0x9B05688C;
+ ctx->state[6] = 0x1F83D9AB;
+ ctx->state[7] = 0x5BE0CD19;
+ }
+ else
+ {
+ /* SHA-224 */
+ ctx->state[0] = 0xC1059ED8;
+ ctx->state[1] = 0x367CD507;
+ ctx->state[2] = 0x3070DD17;
+ ctx->state[3] = 0xF70E5939;
+ ctx->state[4] = 0xFFC00B31;
+ ctx->state[5] = 0x68581511;
+ ctx->state[6] = 0x64F98FA7;
+ ctx->state[7] = 0xBEFA4FA4;
+ }
+
+ ctx->is224 = is224;
+}
+
+static void sha2_process( sha2_context *ctx, const unsigned char data[64] )
+{
+ unsigned long temp1, temp2, W[64];
+ unsigned long A, B, C, D, E, F, G, H;
+
+ GET_ULONG_BE( W[ 0], data, 0 );
+ GET_ULONG_BE( W[ 1], data, 4 );
+ GET_ULONG_BE( W[ 2], data, 8 );
+ GET_ULONG_BE( W[ 3], data, 12 );
+ GET_ULONG_BE( W[ 4], data, 16 );
+ GET_ULONG_BE( W[ 5], data, 20 );
+ GET_ULONG_BE( W[ 6], data, 24 );
+ GET_ULONG_BE( W[ 7], data, 28 );
+ GET_ULONG_BE( W[ 8], data, 32 );
+ GET_ULONG_BE( W[ 9], data, 36 );
+ GET_ULONG_BE( W[10], data, 40 );
+ GET_ULONG_BE( W[11], data, 44 );
+ GET_ULONG_BE( W[12], data, 48 );
+ GET_ULONG_BE( W[13], data, 52 );
+ GET_ULONG_BE( W[14], data, 56 );
+ GET_ULONG_BE( W[15], data, 60 );
+
+#define SHR(x,n) ((x & 0xFFFFFFFF) >> n)
+#define ROTR(x,n) (SHR(x,n) | (x << (32 - n)))
+
+#define S0(x) (ROTR(x, 7) ^ ROTR(x,18) ^ SHR(x, 3))
+#define S1(x) (ROTR(x,17) ^ ROTR(x,19) ^ SHR(x,10))
+
+#define S2(x) (ROTR(x, 2) ^ ROTR(x,13) ^ ROTR(x,22))
+#define S3(x) (ROTR(x, 6) ^ ROTR(x,11) ^ ROTR(x,25))
+
+#define F0(x,y,z) ((x & y) | (z & (x | y)))
+#define F1(x,y,z) (z ^ (x & (y ^ z)))
+
+#define R(t) \
+( \
+ W[t] = S1(W[t - 2]) + W[t - 7] + \
+ S0(W[t - 15]) + W[t - 16] \
+)
+
+#define P(a,b,c,d,e,f,g,h,x,K) \
+{ \
+ temp1 = h + S3(e) + F1(e,f,g) + K + x; \
+ temp2 = S2(a) + F0(a,b,c); \
+ d += temp1; h = temp1 + temp2; \
+}
+
+ A = ctx->state[0];
+ B = ctx->state[1];
+ C = ctx->state[2];
+ D = ctx->state[3];
+ E = ctx->state[4];
+ F = ctx->state[5];
+ G = ctx->state[6];
+ H = ctx->state[7];
+
+ P( A, B, C, D, E, F, G, H, W[ 0], 0x428A2F98 );
+ P( H, A, B, C, D, E, F, G, W[ 1], 0x71374491 );
+ P( G, H, A, B, C, D, E, F, W[ 2], 0xB5C0FBCF );
+ P( F, G, H, A, B, C, D, E, W[ 3], 0xE9B5DBA5 );
+ P( E, F, G, H, A, B, C, D, W[ 4], 0x3956C25B );
+ P( D, E, F, G, H, A, B, C, W[ 5], 0x59F111F1 );
+ P( C, D, E, F, G, H, A, B, W[ 6], 0x923F82A4 );
+ P( B, C, D, E, F, G, H, A, W[ 7], 0xAB1C5ED5 );
+ P( A, B, C, D, E, F, G, H, W[ 8], 0xD807AA98 );
+ P( H, A, B, C, D, E, F, G, W[ 9], 0x12835B01 );
+ P( G, H, A, B, C, D, E, F, W[10], 0x243185BE );
+ P( F, G, H, A, B, C, D, E, W[11], 0x550C7DC3 );
+ P( E, F, G, H, A, B, C, D, W[12], 0x72BE5D74 );
+ P( D, E, F, G, H, A, B, C, W[13], 0x80DEB1FE );
+ P( C, D, E, F, G, H, A, B, W[14], 0x9BDC06A7 );
+ P( B, C, D, E, F, G, H, A, W[15], 0xC19BF174 );
+ P( A, B, C, D, E, F, G, H, R(16), 0xE49B69C1 );
+ P( H, A, B, C, D, E, F, G, R(17), 0xEFBE4786 );
+ P( G, H, A, B, C, D, E, F, R(18), 0x0FC19DC6 );
+ P( F, G, H, A, B, C, D, E, R(19), 0x240CA1CC );
+ P( E, F, G, H, A, B, C, D, R(20), 0x2DE92C6F );
+ P( D, E, F, G, H, A, B, C, R(21), 0x4A7484AA );
+ P( C, D, E, F, G, H, A, B, R(22), 0x5CB0A9DC );
+ P( B, C, D, E, F, G, H, A, R(23), 0x76F988DA );
+ P( A, B, C, D, E, F, G, H, R(24), 0x983E5152 );
+ P( H, A, B, C, D, E, F, G, R(25), 0xA831C66D );
+ P( G, H, A, B, C, D, E, F, R(26), 0xB00327C8 );
+ P( F, G, H, A, B, C, D, E, R(27), 0xBF597FC7 );
+ P( E, F, G, H, A, B, C, D, R(28), 0xC6E00BF3 );
+ P( D, E, F, G, H, A, B, C, R(29), 0xD5A79147 );
+ P( C, D, E, F, G, H, A, B, R(30), 0x06CA6351 );
+ P( B, C, D, E, F, G, H, A, R(31), 0x14292967 );
+ P( A, B, C, D, E, F, G, H, R(32), 0x27B70A85 );
+ P( H, A, B, C, D, E, F, G, R(33), 0x2E1B2138 );
+ P( G, H, A, B, C, D, E, F, R(34), 0x4D2C6DFC );
+ P( F, G, H, A, B, C, D, E, R(35), 0x53380D13 );
+ P( E, F, G, H, A, B, C, D, R(36), 0x650A7354 );
+ P( D, E, F, G, H, A, B, C, R(37), 0x766A0ABB );
+ P( C, D, E, F, G, H, A, B, R(38), 0x81C2C92E );
+ P( B, C, D, E, F, G, H, A, R(39), 0x92722C85 );
+ P( A, B, C, D, E, F, G, H, R(40), 0xA2BFE8A1 );
+ P( H, A, B, C, D, E, F, G, R(41), 0xA81A664B );
+ P( G, H, A, B, C, D, E, F, R(42), 0xC24B8B70 );
+ P( F, G, H, A, B, C, D, E, R(43), 0xC76C51A3 );
+ P( E, F, G, H, A, B, C, D, R(44), 0xD192E819 );
+ P( D, E, F, G, H, A, B, C, R(45), 0xD6990624 );
+ P( C, D, E, F, G, H, A, B, R(46), 0xF40E3585 );
+ P( B, C, D, E, F, G, H, A, R(47), 0x106AA070 );
+ P( A, B, C, D, E, F, G, H, R(48), 0x19A4C116 );
+ P( H, A, B, C, D, E, F, G, R(49), 0x1E376C08 );
+ P( G, H, A, B, C, D, E, F, R(50), 0x2748774C );
+ P( F, G, H, A, B, C, D, E, R(51), 0x34B0BCB5 );
+ P( E, F, G, H, A, B, C, D, R(52), 0x391C0CB3 );
+ P( D, E, F, G, H, A, B, C, R(53), 0x4ED8AA4A );
+ P( C, D, E, F, G, H, A, B, R(54), 0x5B9CCA4F );
+ P( B, C, D, E, F, G, H, A, R(55), 0x682E6FF3 );
+ P( A, B, C, D, E, F, G, H, R(56), 0x748F82EE );
+ P( H, A, B, C, D, E, F, G, R(57), 0x78A5636F );
+ P( G, H, A, B, C, D, E, F, R(58), 0x84C87814 );
+ P( F, G, H, A, B, C, D, E, R(59), 0x8CC70208 );
+ P( E, F, G, H, A, B, C, D, R(60), 0x90BEFFFA );
+ P( D, E, F, G, H, A, B, C, R(61), 0xA4506CEB );
+ P( C, D, E, F, G, H, A, B, R(62), 0xBEF9A3F7 );
+ P( B, C, D, E, F, G, H, A, R(63), 0xC67178F2 );
+
+ ctx->state[0] += A;
+ ctx->state[1] += B;
+ ctx->state[2] += C;
+ ctx->state[3] += D;
+ ctx->state[4] += E;
+ ctx->state[5] += F;
+ ctx->state[6] += G;
+ ctx->state[7] += H;
+}
+
+/*
+ * SHA-256 process buffer
+ */
+void sha2_update( sha2_context *ctx, const unsigned char *input, size_t ilen )
+{
+ size_t fill;
+ unsigned long left;
+
+ if( ilen <= 0 )
+ return;
+
+ left = ctx->total[0] & 0x3F;
+ fill = 64 - left;
+
+ ctx->total[0] += (unsigned long) ilen;
+ ctx->total[0] &= 0xFFFFFFFF;
+
+ if( ctx->total[0] < (unsigned long) ilen )
+ ctx->total[1]++;
+
+ if( left && ilen >= fill )
+ {
+ memcpy( (void *) (ctx->buffer + left),
+ (void *) input, fill );
+ sha2_process( ctx, ctx->buffer );
+ input += fill;
+ ilen -= fill;
+ left = 0;
+ }
+
+ while( ilen >= 64 )
+ {
+ sha2_process( ctx, input );
+ input += 64;
+ ilen -= 64;
+ }
+
+ if( ilen > 0 )
+ {
+ memcpy( (void *) (ctx->buffer + left),
+ (void *) input, ilen );
+ }
+}
+
+static const unsigned char sha2_padding[64] =
+{
+ 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+};
+
+/*
+ * SHA-256 final digest
+ */
+void sha2_finish( sha2_context *ctx, unsigned char output[32] )
+{
+ unsigned long last, padn;
+ unsigned long high, low;
+ unsigned char msglen[8];
+
+ high = ( ctx->total[0] >> 29 )
+ | ( ctx->total[1] << 3 );
+ low = ( ctx->total[0] << 3 );
+
+ PUT_ULONG_BE( high, msglen, 0 );
+ PUT_ULONG_BE( low, msglen, 4 );
+
+ last = ctx->total[0] & 0x3F;
+ padn = ( last < 56 ) ? ( 56 - last ) : ( 120 - last );
+
+ sha2_update( ctx, (unsigned char *) sha2_padding, padn );
+ sha2_update( ctx, msglen, 8 );
+
+ PUT_ULONG_BE( ctx->state[0], output, 0 );
+ PUT_ULONG_BE( ctx->state[1], output, 4 );
+ PUT_ULONG_BE( ctx->state[2], output, 8 );
+ PUT_ULONG_BE( ctx->state[3], output, 12 );
+ PUT_ULONG_BE( ctx->state[4], output, 16 );
+ PUT_ULONG_BE( ctx->state[5], output, 20 );
+ PUT_ULONG_BE( ctx->state[6], output, 24 );
+
+ if( ctx->is224 == 0 )
+ PUT_ULONG_BE( ctx->state[7], output, 28 );
+}
+
+/*
+ * output = SHA-256( input buffer )
+ */
+void sha2( const unsigned char *input, size_t ilen,
+ unsigned char output[32], int is224 )
+{
+ sha2_context ctx;
+
+ sha2_starts( &ctx, is224 );
+ sha2_update( &ctx, input, ilen );
+ sha2_finish( &ctx, output );
+
+ memset( &ctx, 0, sizeof( sha2_context ) );
+}
+
+#if defined(POLARSSL_FS_IO)
+/*
+ * output = SHA-256( file contents )
+ */
+int sha2_file( const char *path, unsigned char output[32], int is224 )
+{
+ FILE *f;
+ size_t n;
+ sha2_context ctx;
+ unsigned char buf[1024];
+
+ if( ( f = fopen( path, "rb" ) ) == NULL )
+ return( POLARSSL_ERR_SHA2_FILE_IO_ERROR );
+
+ sha2_starts( &ctx, is224 );
+
+ while( ( n = fread( buf, 1, sizeof( buf ), f ) ) > 0 )
+ sha2_update( &ctx, buf, n );
+
+ sha2_finish( &ctx, output );
+
+ memset( &ctx, 0, sizeof( sha2_context ) );
+
+ if( ferror( f ) != 0 )
+ {
+ fclose( f );
+ return( POLARSSL_ERR_SHA2_FILE_IO_ERROR );
+ }
+
+ fclose( f );
+ return( 0 );
+}
+#endif /* POLARSSL_FS_IO */
+
+/*
+ * SHA-256 HMAC context setup
+ */
+void sha2_hmac_starts( sha2_context *ctx, const unsigned char *key, size_t keylen,
+ int is224 )
+{
+ size_t i;
+ unsigned char sum[32];
+
+ if( keylen > 64 )
+ {
+ sha2( key, keylen, sum, is224 );
+ keylen = ( is224 ) ? 28 : 32;
+ key = sum;
+ }
+
+ memset( ctx->ipad, 0x36, 64 );
+ memset( ctx->opad, 0x5C, 64 );
+
+ for( i = 0; i < keylen; i++ )
+ {
+ ctx->ipad[i] = (unsigned char)( ctx->ipad[i] ^ key[i] );
+ ctx->opad[i] = (unsigned char)( ctx->opad[i] ^ key[i] );
+ }
+
+ sha2_starts( ctx, is224 );
+ sha2_update( ctx, ctx->ipad, 64 );
+
+ memset( sum, 0, sizeof( sum ) );
+}
+
+/*
+ * SHA-256 HMAC process buffer
+ */
+void sha2_hmac_update( sha2_context *ctx, const unsigned char *input, size_t ilen )
+{
+ sha2_update( ctx, input, ilen );
+}
+
+/*
+ * SHA-256 HMAC final digest
+ */
+void sha2_hmac_finish( sha2_context *ctx, unsigned char output[32] )
+{
+ int is224, hlen;
+ unsigned char tmpbuf[32];
+
+ is224 = ctx->is224;
+ hlen = ( is224 == 0 ) ? 32 : 28;
+
+ sha2_finish( ctx, tmpbuf );
+ sha2_starts( ctx, is224 );
+ sha2_update( ctx, ctx->opad, 64 );
+ sha2_update( ctx, tmpbuf, hlen );
+ sha2_finish( ctx, output );
+
+ memset( tmpbuf, 0, sizeof( tmpbuf ) );
+}
+
+/*
+ * SHA-256 HMAC context reset
+ */
+void sha2_hmac_reset( sha2_context *ctx )
+{
+ sha2_starts( ctx, ctx->is224 );
+ sha2_update( ctx, ctx->ipad, 64 );
+}
+
+/*
+ * output = HMAC-SHA-256( hmac key, input buffer )
+ */
+void sha2_hmac( const unsigned char *key, size_t keylen,
+ const unsigned char *input, size_t ilen,
+ unsigned char output[32], int is224 )
+{
+ sha2_context ctx;
+
+ sha2_hmac_starts( &ctx, key, keylen, is224 );
+ sha2_hmac_update( &ctx, input, ilen );
+ sha2_hmac_finish( &ctx, output );
+
+ memset( &ctx, 0, sizeof( sha2_context ) );
+}
+
+#if defined(POLARSSL_SELF_TEST)
+/*
+ * FIPS-180-2 test vectors
+ */
+static unsigned char sha2_test_buf[3][57] =
+{
+ { "abc" },
+ { "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq" },
+ { "" }
+};
+
+static const int sha2_test_buflen[3] =
+{
+ 3, 56, 1000
+};
+
+static const unsigned char sha2_test_sum[6][32] =
+{
+ /*
+ * SHA-224 test vectors
+ */
+ { 0x23, 0x09, 0x7D, 0x22, 0x34, 0x05, 0xD8, 0x22,
+ 0x86, 0x42, 0xA4, 0x77, 0xBD, 0xA2, 0x55, 0xB3,
+ 0x2A, 0xAD, 0xBC, 0xE4, 0xBD, 0xA0, 0xB3, 0xF7,
+ 0xE3, 0x6C, 0x9D, 0xA7 },
+ { 0x75, 0x38, 0x8B, 0x16, 0x51, 0x27, 0x76, 0xCC,
+ 0x5D, 0xBA, 0x5D, 0xA1, 0xFD, 0x89, 0x01, 0x50,
+ 0xB0, 0xC6, 0x45, 0x5C, 0xB4, 0xF5, 0x8B, 0x19,
+ 0x52, 0x52, 0x25, 0x25 },
+ { 0x20, 0x79, 0x46, 0x55, 0x98, 0x0C, 0x91, 0xD8,
+ 0xBB, 0xB4, 0xC1, 0xEA, 0x97, 0x61, 0x8A, 0x4B,
+ 0xF0, 0x3F, 0x42, 0x58, 0x19, 0x48, 0xB2, 0xEE,
+ 0x4E, 0xE7, 0xAD, 0x67 },
+
+ /*
+ * SHA-256 test vectors
+ */
+ { 0xBA, 0x78, 0x16, 0xBF, 0x8F, 0x01, 0xCF, 0xEA,
+ 0x41, 0x41, 0x40, 0xDE, 0x5D, 0xAE, 0x22, 0x23,
+ 0xB0, 0x03, 0x61, 0xA3, 0x96, 0x17, 0x7A, 0x9C,
+ 0xB4, 0x10, 0xFF, 0x61, 0xF2, 0x00, 0x15, 0xAD },
+ { 0x24, 0x8D, 0x6A, 0x61, 0xD2, 0x06, 0x38, 0xB8,
+ 0xE5, 0xC0, 0x26, 0x93, 0x0C, 0x3E, 0x60, 0x39,
+ 0xA3, 0x3C, 0xE4, 0x59, 0x64, 0xFF, 0x21, 0x67,
+ 0xF6, 0xEC, 0xED, 0xD4, 0x19, 0xDB, 0x06, 0xC1 },
+ { 0xCD, 0xC7, 0x6E, 0x5C, 0x99, 0x14, 0xFB, 0x92,
+ 0x81, 0xA1, 0xC7, 0xE2, 0x84, 0xD7, 0x3E, 0x67,
+ 0xF1, 0x80, 0x9A, 0x48, 0xA4, 0x97, 0x20, 0x0E,
+ 0x04, 0x6D, 0x39, 0xCC, 0xC7, 0x11, 0x2C, 0xD0 }
+};
+
+/*
+ * RFC 4231 test vectors
+ */
+static unsigned char sha2_hmac_test_key[7][26] =
+{
+ { "\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B"
+ "\x0B\x0B\x0B\x0B" },
+ { "Jefe" },
+ { "\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA"
+ "\xAA\xAA\xAA\xAA" },
+ { "\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0A\x0B\x0C\x0D\x0E\x0F\x10"
+ "\x11\x12\x13\x14\x15\x16\x17\x18\x19" },
+ { "\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C"
+ "\x0C\x0C\x0C\x0C" },
+ { "" }, /* 0xAA 131 times */
+ { "" }
+};
+
+static const int sha2_hmac_test_keylen[7] =
+{
+ 20, 4, 20, 25, 20, 131, 131
+};
+
+static unsigned char sha2_hmac_test_buf[7][153] =
+{
+ { "Hi There" },
+ { "what do ya want for nothing?" },
+ { "\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD"
+ "\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD"
+ "\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD"
+ "\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD"
+ "\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD" },
+ { "\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD"
+ "\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD"
+ "\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD"
+ "\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD"
+ "\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD" },
+ { "Test With Truncation" },
+ { "Test Using Larger Than Block-Size Key - Hash Key First" },
+ { "This is a test using a larger than block-size key "
+ "and a larger than block-size data. The key needs to "
+ "be hashed before being used by the HMAC algorithm." }
+};
+
+static const int sha2_hmac_test_buflen[7] =
+{
+ 8, 28, 50, 50, 20, 54, 152
+};
+
+static const unsigned char sha2_hmac_test_sum[14][32] =
+{
+ /*
+ * HMAC-SHA-224 test vectors
+ */
+ { 0x89, 0x6F, 0xB1, 0x12, 0x8A, 0xBB, 0xDF, 0x19,
+ 0x68, 0x32, 0x10, 0x7C, 0xD4, 0x9D, 0xF3, 0x3F,
+ 0x47, 0xB4, 0xB1, 0x16, 0x99, 0x12, 0xBA, 0x4F,
+ 0x53, 0x68, 0x4B, 0x22 },
+ { 0xA3, 0x0E, 0x01, 0x09, 0x8B, 0xC6, 0xDB, 0xBF,
+ 0x45, 0x69, 0x0F, 0x3A, 0x7E, 0x9E, 0x6D, 0x0F,
+ 0x8B, 0xBE, 0xA2, 0xA3, 0x9E, 0x61, 0x48, 0x00,
+ 0x8F, 0xD0, 0x5E, 0x44 },
+ { 0x7F, 0xB3, 0xCB, 0x35, 0x88, 0xC6, 0xC1, 0xF6,
+ 0xFF, 0xA9, 0x69, 0x4D, 0x7D, 0x6A, 0xD2, 0x64,
+ 0x93, 0x65, 0xB0, 0xC1, 0xF6, 0x5D, 0x69, 0xD1,
+ 0xEC, 0x83, 0x33, 0xEA },
+ { 0x6C, 0x11, 0x50, 0x68, 0x74, 0x01, 0x3C, 0xAC,
+ 0x6A, 0x2A, 0xBC, 0x1B, 0xB3, 0x82, 0x62, 0x7C,
+ 0xEC, 0x6A, 0x90, 0xD8, 0x6E, 0xFC, 0x01, 0x2D,
+ 0xE7, 0xAF, 0xEC, 0x5A },
+ { 0x0E, 0x2A, 0xEA, 0x68, 0xA9, 0x0C, 0x8D, 0x37,
+ 0xC9, 0x88, 0xBC, 0xDB, 0x9F, 0xCA, 0x6F, 0xA8 },
+ { 0x95, 0xE9, 0xA0, 0xDB, 0x96, 0x20, 0x95, 0xAD,
+ 0xAE, 0xBE, 0x9B, 0x2D, 0x6F, 0x0D, 0xBC, 0xE2,
+ 0xD4, 0x99, 0xF1, 0x12, 0xF2, 0xD2, 0xB7, 0x27,
+ 0x3F, 0xA6, 0x87, 0x0E },
+ { 0x3A, 0x85, 0x41, 0x66, 0xAC, 0x5D, 0x9F, 0x02,
+ 0x3F, 0x54, 0xD5, 0x17, 0xD0, 0xB3, 0x9D, 0xBD,
+ 0x94, 0x67, 0x70, 0xDB, 0x9C, 0x2B, 0x95, 0xC9,
+ 0xF6, 0xF5, 0x65, 0xD1 },
+
+ /*
+ * HMAC-SHA-256 test vectors
+ */
+ { 0xB0, 0x34, 0x4C, 0x61, 0xD8, 0xDB, 0x38, 0x53,
+ 0x5C, 0xA8, 0xAF, 0xCE, 0xAF, 0x0B, 0xF1, 0x2B,
+ 0x88, 0x1D, 0xC2, 0x00, 0xC9, 0x83, 0x3D, 0xA7,
+ 0x26, 0xE9, 0x37, 0x6C, 0x2E, 0x32, 0xCF, 0xF7 },
+ { 0x5B, 0xDC, 0xC1, 0x46, 0xBF, 0x60, 0x75, 0x4E,
+ 0x6A, 0x04, 0x24, 0x26, 0x08, 0x95, 0x75, 0xC7,
+ 0x5A, 0x00, 0x3F, 0x08, 0x9D, 0x27, 0x39, 0x83,
+ 0x9D, 0xEC, 0x58, 0xB9, 0x64, 0xEC, 0x38, 0x43 },
+ { 0x77, 0x3E, 0xA9, 0x1E, 0x36, 0x80, 0x0E, 0x46,
+ 0x85, 0x4D, 0xB8, 0xEB, 0xD0, 0x91, 0x81, 0xA7,
+ 0x29, 0x59, 0x09, 0x8B, 0x3E, 0xF8, 0xC1, 0x22,
+ 0xD9, 0x63, 0x55, 0x14, 0xCE, 0xD5, 0x65, 0xFE },
+ { 0x82, 0x55, 0x8A, 0x38, 0x9A, 0x44, 0x3C, 0x0E,
+ 0xA4, 0xCC, 0x81, 0x98, 0x99, 0xF2, 0x08, 0x3A,
+ 0x85, 0xF0, 0xFA, 0xA3, 0xE5, 0x78, 0xF8, 0x07,
+ 0x7A, 0x2E, 0x3F, 0xF4, 0x67, 0x29, 0x66, 0x5B },
+ { 0xA3, 0xB6, 0x16, 0x74, 0x73, 0x10, 0x0E, 0xE0,
+ 0x6E, 0x0C, 0x79, 0x6C, 0x29, 0x55, 0x55, 0x2B },
+ { 0x60, 0xE4, 0x31, 0x59, 0x1E, 0xE0, 0xB6, 0x7F,
+ 0x0D, 0x8A, 0x26, 0xAA, 0xCB, 0xF5, 0xB7, 0x7F,
+ 0x8E, 0x0B, 0xC6, 0x21, 0x37, 0x28, 0xC5, 0x14,
+ 0x05, 0x46, 0x04, 0x0F, 0x0E, 0xE3, 0x7F, 0x54 },
+ { 0x9B, 0x09, 0xFF, 0xA7, 0x1B, 0x94, 0x2F, 0xCB,
+ 0x27, 0x63, 0x5F, 0xBC, 0xD5, 0xB0, 0xE9, 0x44,
+ 0xBF, 0xDC, 0x63, 0x64, 0x4F, 0x07, 0x13, 0x93,
+ 0x8A, 0x7F, 0x51, 0x53, 0x5C, 0x3A, 0x35, 0xE2 }
+};
+
+/*
+ * Checkup routine
+ */
+int sha2_self_test( int verbose )
+{
+ int i, j, k, buflen;
+ unsigned char buf[1024];
+ unsigned char sha2sum[32];
+ sha2_context ctx;
+
+ for( i = 0; i < 6; i++ )
+ {
+ j = i % 3;
+ k = i < 3;
+
+ if( verbose != 0 )
+ printf( " SHA-%d test #%d: ", 256 - k * 32, j + 1 );
+
+ sha2_starts( &ctx, k );
+
+ if( j == 2 )
+ {
+ memset( buf, 'a', buflen = 1000 );
+
+ for( j = 0; j < 1000; j++ )
+ sha2_update( &ctx, buf, buflen );
+ }
+ else
+ sha2_update( &ctx, sha2_test_buf[j],
+ sha2_test_buflen[j] );
+
+ sha2_finish( &ctx, sha2sum );
+
+ if( memcmp( sha2sum, sha2_test_sum[i], 32 - k * 4 ) != 0 )
+ {
+ if( verbose != 0 )
+ printf( "failed\n" );
+
+ return( 1 );
+ }
+
+ if( verbose != 0 )
+ printf( "passed\n" );
+ }
+
+ if( verbose != 0 )
+ printf( "\n" );
+
+ for( i = 0; i < 14; i++ )
+ {
+ j = i % 7;
+ k = i < 7;
+
+ if( verbose != 0 )
+ printf( " HMAC-SHA-%d test #%d: ", 256 - k * 32, j + 1 );
+
+ if( j == 5 || j == 6 )
+ {
+ memset( buf, '\xAA', buflen = 131 );
+ sha2_hmac_starts( &ctx, buf, buflen, k );
+ }
+ else
+ sha2_hmac_starts( &ctx, sha2_hmac_test_key[j],
+ sha2_hmac_test_keylen[j], k );
+
+ sha2_hmac_update( &ctx, sha2_hmac_test_buf[j],
+ sha2_hmac_test_buflen[j] );
+
+ sha2_hmac_finish( &ctx, sha2sum );
+
+ buflen = ( j == 4 ) ? 16 : 32 - k * 4;
+
+ if( memcmp( sha2sum, sha2_hmac_test_sum[i], buflen ) != 0 )
+ {
+ if( verbose != 0 )
+ printf( "failed\n" );
+
+ return( 1 );
+ }
+
+ if( verbose != 0 )
+ printf( "passed\n" );
+ }
+
+ if( verbose != 0 )
+ printf( "\n" );
+
+ return( 0 );
+}
+
+#endif
+
+#endif
--- /dev/null
+/*
+ * FIPS-180-2 compliant SHA-384/512 implementation
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+/*
+ * The SHA-512 Secure Hash Standard was published by NIST in 2002.
+ *
+ * http://csrc.nist.gov/publications/fips/fips180-2/fips180-2.pdf
+ */
+
+#include "polarssl/config.h"
+
+#if defined(POLARSSL_SHA4_C)
+
+#include "polarssl/sha4.h"
+
+#if defined(POLARSSL_FS_IO) || defined(POLARSSL_SELF_TEST)
+#include <stdio.h>
+#endif
+
+/*
+ * 64-bit integer manipulation macros (big endian)
+ */
+#ifndef GET_UINT64_BE
+#define GET_UINT64_BE(n,b,i) \
+{ \
+ (n) = ( (unsigned long64) (b)[(i) ] << 56 ) \
+ | ( (unsigned long64) (b)[(i) + 1] << 48 ) \
+ | ( (unsigned long64) (b)[(i) + 2] << 40 ) \
+ | ( (unsigned long64) (b)[(i) + 3] << 32 ) \
+ | ( (unsigned long64) (b)[(i) + 4] << 24 ) \
+ | ( (unsigned long64) (b)[(i) + 5] << 16 ) \
+ | ( (unsigned long64) (b)[(i) + 6] << 8 ) \
+ | ( (unsigned long64) (b)[(i) + 7] ); \
+}
+#endif
+
+#ifndef PUT_UINT64_BE
+#define PUT_UINT64_BE(n,b,i) \
+{ \
+ (b)[(i) ] = (unsigned char) ( (n) >> 56 ); \
+ (b)[(i) + 1] = (unsigned char) ( (n) >> 48 ); \
+ (b)[(i) + 2] = (unsigned char) ( (n) >> 40 ); \
+ (b)[(i) + 3] = (unsigned char) ( (n) >> 32 ); \
+ (b)[(i) + 4] = (unsigned char) ( (n) >> 24 ); \
+ (b)[(i) + 5] = (unsigned char) ( (n) >> 16 ); \
+ (b)[(i) + 6] = (unsigned char) ( (n) >> 8 ); \
+ (b)[(i) + 7] = (unsigned char) ( (n) ); \
+}
+#endif
+
+/*
+ * Round constants
+ */
+static const unsigned long64 K[80] =
+{
+ UL64(0x428A2F98D728AE22), UL64(0x7137449123EF65CD),
+ UL64(0xB5C0FBCFEC4D3B2F), UL64(0xE9B5DBA58189DBBC),
+ UL64(0x3956C25BF348B538), UL64(0x59F111F1B605D019),
+ UL64(0x923F82A4AF194F9B), UL64(0xAB1C5ED5DA6D8118),
+ UL64(0xD807AA98A3030242), UL64(0x12835B0145706FBE),
+ UL64(0x243185BE4EE4B28C), UL64(0x550C7DC3D5FFB4E2),
+ UL64(0x72BE5D74F27B896F), UL64(0x80DEB1FE3B1696B1),
+ UL64(0x9BDC06A725C71235), UL64(0xC19BF174CF692694),
+ UL64(0xE49B69C19EF14AD2), UL64(0xEFBE4786384F25E3),
+ UL64(0x0FC19DC68B8CD5B5), UL64(0x240CA1CC77AC9C65),
+ UL64(0x2DE92C6F592B0275), UL64(0x4A7484AA6EA6E483),
+ UL64(0x5CB0A9DCBD41FBD4), UL64(0x76F988DA831153B5),
+ UL64(0x983E5152EE66DFAB), UL64(0xA831C66D2DB43210),
+ UL64(0xB00327C898FB213F), UL64(0xBF597FC7BEEF0EE4),
+ UL64(0xC6E00BF33DA88FC2), UL64(0xD5A79147930AA725),
+ UL64(0x06CA6351E003826F), UL64(0x142929670A0E6E70),
+ UL64(0x27B70A8546D22FFC), UL64(0x2E1B21385C26C926),
+ UL64(0x4D2C6DFC5AC42AED), UL64(0x53380D139D95B3DF),
+ UL64(0x650A73548BAF63DE), UL64(0x766A0ABB3C77B2A8),
+ UL64(0x81C2C92E47EDAEE6), UL64(0x92722C851482353B),
+ UL64(0xA2BFE8A14CF10364), UL64(0xA81A664BBC423001),
+ UL64(0xC24B8B70D0F89791), UL64(0xC76C51A30654BE30),
+ UL64(0xD192E819D6EF5218), UL64(0xD69906245565A910),
+ UL64(0xF40E35855771202A), UL64(0x106AA07032BBD1B8),
+ UL64(0x19A4C116B8D2D0C8), UL64(0x1E376C085141AB53),
+ UL64(0x2748774CDF8EEB99), UL64(0x34B0BCB5E19B48A8),
+ UL64(0x391C0CB3C5C95A63), UL64(0x4ED8AA4AE3418ACB),
+ UL64(0x5B9CCA4F7763E373), UL64(0x682E6FF3D6B2B8A3),
+ UL64(0x748F82EE5DEFB2FC), UL64(0x78A5636F43172F60),
+ UL64(0x84C87814A1F0AB72), UL64(0x8CC702081A6439EC),
+ UL64(0x90BEFFFA23631E28), UL64(0xA4506CEBDE82BDE9),
+ UL64(0xBEF9A3F7B2C67915), UL64(0xC67178F2E372532B),
+ UL64(0xCA273ECEEA26619C), UL64(0xD186B8C721C0C207),
+ UL64(0xEADA7DD6CDE0EB1E), UL64(0xF57D4F7FEE6ED178),
+ UL64(0x06F067AA72176FBA), UL64(0x0A637DC5A2C898A6),
+ UL64(0x113F9804BEF90DAE), UL64(0x1B710B35131C471B),
+ UL64(0x28DB77F523047D84), UL64(0x32CAAB7B40C72493),
+ UL64(0x3C9EBE0A15C9BEBC), UL64(0x431D67C49C100D4C),
+ UL64(0x4CC5D4BECB3E42B6), UL64(0x597F299CFC657E2A),
+ UL64(0x5FCB6FAB3AD6FAEC), UL64(0x6C44198C4A475817)
+};
+
+/*
+ * SHA-512 context setup
+ */
+void sha4_starts( sha4_context *ctx, int is384 )
+{
+ ctx->total[0] = 0;
+ ctx->total[1] = 0;
+
+ if( is384 == 0 )
+ {
+ /* SHA-512 */
+ ctx->state[0] = UL64(0x6A09E667F3BCC908);
+ ctx->state[1] = UL64(0xBB67AE8584CAA73B);
+ ctx->state[2] = UL64(0x3C6EF372FE94F82B);
+ ctx->state[3] = UL64(0xA54FF53A5F1D36F1);
+ ctx->state[4] = UL64(0x510E527FADE682D1);
+ ctx->state[5] = UL64(0x9B05688C2B3E6C1F);
+ ctx->state[6] = UL64(0x1F83D9ABFB41BD6B);
+ ctx->state[7] = UL64(0x5BE0CD19137E2179);
+ }
+ else
+ {
+ /* SHA-384 */
+ ctx->state[0] = UL64(0xCBBB9D5DC1059ED8);
+ ctx->state[1] = UL64(0x629A292A367CD507);
+ ctx->state[2] = UL64(0x9159015A3070DD17);
+ ctx->state[3] = UL64(0x152FECD8F70E5939);
+ ctx->state[4] = UL64(0x67332667FFC00B31);
+ ctx->state[5] = UL64(0x8EB44A8768581511);
+ ctx->state[6] = UL64(0xDB0C2E0D64F98FA7);
+ ctx->state[7] = UL64(0x47B5481DBEFA4FA4);
+ }
+
+ ctx->is384 = is384;
+}
+
+static void sha4_process( sha4_context *ctx, const unsigned char data[128] )
+{
+ int i;
+ unsigned long64 temp1, temp2, W[80];
+ unsigned long64 A, B, C, D, E, F, G, H;
+
+#define SHR(x,n) (x >> n)
+#define ROTR(x,n) (SHR(x,n) | (x << (64 - n)))
+
+#define S0(x) (ROTR(x, 1) ^ ROTR(x, 8) ^ SHR(x, 7))
+#define S1(x) (ROTR(x,19) ^ ROTR(x,61) ^ SHR(x, 6))
+
+#define S2(x) (ROTR(x,28) ^ ROTR(x,34) ^ ROTR(x,39))
+#define S3(x) (ROTR(x,14) ^ ROTR(x,18) ^ ROTR(x,41))
+
+#define F0(x,y,z) ((x & y) | (z & (x | y)))
+#define F1(x,y,z) (z ^ (x & (y ^ z)))
+
+#define P(a,b,c,d,e,f,g,h,x,K) \
+{ \
+ temp1 = h + S3(e) + F1(e,f,g) + K + x; \
+ temp2 = S2(a) + F0(a,b,c); \
+ d += temp1; h = temp1 + temp2; \
+}
+
+ for( i = 0; i < 16; i++ )
+ {
+ GET_UINT64_BE( W[i], data, i << 3 );
+ }
+
+ for( ; i < 80; i++ )
+ {
+ W[i] = S1(W[i - 2]) + W[i - 7] +
+ S0(W[i - 15]) + W[i - 16];
+ }
+
+ A = ctx->state[0];
+ B = ctx->state[1];
+ C = ctx->state[2];
+ D = ctx->state[3];
+ E = ctx->state[4];
+ F = ctx->state[5];
+ G = ctx->state[6];
+ H = ctx->state[7];
+ i = 0;
+
+ do
+ {
+ P( A, B, C, D, E, F, G, H, W[i], K[i] ); i++;
+ P( H, A, B, C, D, E, F, G, W[i], K[i] ); i++;
+ P( G, H, A, B, C, D, E, F, W[i], K[i] ); i++;
+ P( F, G, H, A, B, C, D, E, W[i], K[i] ); i++;
+ P( E, F, G, H, A, B, C, D, W[i], K[i] ); i++;
+ P( D, E, F, G, H, A, B, C, W[i], K[i] ); i++;
+ P( C, D, E, F, G, H, A, B, W[i], K[i] ); i++;
+ P( B, C, D, E, F, G, H, A, W[i], K[i] ); i++;
+ }
+ while( i < 80 );
+
+ ctx->state[0] += A;
+ ctx->state[1] += B;
+ ctx->state[2] += C;
+ ctx->state[3] += D;
+ ctx->state[4] += E;
+ ctx->state[5] += F;
+ ctx->state[6] += G;
+ ctx->state[7] += H;
+}
+
+/*
+ * SHA-512 process buffer
+ */
+void sha4_update( sha4_context *ctx, const unsigned char *input, size_t ilen )
+{
+ size_t fill;
+ unsigned int left;
+
+ if( ilen <= 0 )
+ return;
+
+ left = (unsigned int) (ctx->total[0] & 0x7F);
+ fill = 128 - left;
+
+ ctx->total[0] += (unsigned long64) ilen;
+
+ if( ctx->total[0] < (unsigned long64) ilen )
+ ctx->total[1]++;
+
+ if( left && ilen >= fill )
+ {
+ memcpy( (void *) (ctx->buffer + left),
+ (void *) input, fill );
+ sha4_process( ctx, ctx->buffer );
+ input += fill;
+ ilen -= fill;
+ left = 0;
+ }
+
+ while( ilen >= 128 )
+ {
+ sha4_process( ctx, input );
+ input += 128;
+ ilen -= 128;
+ }
+
+ if( ilen > 0 )
+ {
+ memcpy( (void *) (ctx->buffer + left),
+ (void *) input, ilen );
+ }
+}
+
+static const unsigned char sha4_padding[128] =
+{
+ 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+};
+
+/*
+ * SHA-512 final digest
+ */
+void sha4_finish( sha4_context *ctx, unsigned char output[64] )
+{
+ size_t last, padn;
+ unsigned long64 high, low;
+ unsigned char msglen[16];
+
+ high = ( ctx->total[0] >> 61 )
+ | ( ctx->total[1] << 3 );
+ low = ( ctx->total[0] << 3 );
+
+ PUT_UINT64_BE( high, msglen, 0 );
+ PUT_UINT64_BE( low, msglen, 8 );
+
+ last = (size_t)( ctx->total[0] & 0x7F );
+ padn = ( last < 112 ) ? ( 112 - last ) : ( 240 - last );
+
+ sha4_update( ctx, (unsigned char *) sha4_padding, padn );
+ sha4_update( ctx, msglen, 16 );
+
+ PUT_UINT64_BE( ctx->state[0], output, 0 );
+ PUT_UINT64_BE( ctx->state[1], output, 8 );
+ PUT_UINT64_BE( ctx->state[2], output, 16 );
+ PUT_UINT64_BE( ctx->state[3], output, 24 );
+ PUT_UINT64_BE( ctx->state[4], output, 32 );
+ PUT_UINT64_BE( ctx->state[5], output, 40 );
+
+ if( ctx->is384 == 0 )
+ {
+ PUT_UINT64_BE( ctx->state[6], output, 48 );
+ PUT_UINT64_BE( ctx->state[7], output, 56 );
+ }
+}
+
+/*
+ * output = SHA-512( input buffer )
+ */
+void sha4( const unsigned char *input, size_t ilen,
+ unsigned char output[64], int is384 )
+{
+ sha4_context ctx;
+
+ sha4_starts( &ctx, is384 );
+ sha4_update( &ctx, input, ilen );
+ sha4_finish( &ctx, output );
+
+ memset( &ctx, 0, sizeof( sha4_context ) );
+}
+
+#if defined(POLARSSL_FS_IO)
+/*
+ * output = SHA-512( file contents )
+ */
+int sha4_file( const char *path, unsigned char output[64], int is384 )
+{
+ FILE *f;
+ size_t n;
+ sha4_context ctx;
+ unsigned char buf[1024];
+
+ if( ( f = fopen( path, "rb" ) ) == NULL )
+ return( POLARSSL_ERR_SHA4_FILE_IO_ERROR );
+
+ sha4_starts( &ctx, is384 );
+
+ while( ( n = fread( buf, 1, sizeof( buf ), f ) ) > 0 )
+ sha4_update( &ctx, buf, n );
+
+ sha4_finish( &ctx, output );
+
+ memset( &ctx, 0, sizeof( sha4_context ) );
+
+ if( ferror( f ) != 0 )
+ {
+ fclose( f );
+ return( POLARSSL_ERR_SHA4_FILE_IO_ERROR );
+ }
+
+ fclose( f );
+ return( 0 );
+}
+#endif /* POLARSSL_FS_IO */
+
+/*
+ * SHA-512 HMAC context setup
+ */
+void sha4_hmac_starts( sha4_context *ctx, const unsigned char *key, size_t keylen,
+ int is384 )
+{
+ size_t i;
+ unsigned char sum[64];
+
+ if( keylen > 128 )
+ {
+ sha4( key, keylen, sum, is384 );
+ keylen = ( is384 ) ? 48 : 64;
+ key = sum;
+ }
+
+ memset( ctx->ipad, 0x36, 128 );
+ memset( ctx->opad, 0x5C, 128 );
+
+ for( i = 0; i < keylen; i++ )
+ {
+ ctx->ipad[i] = (unsigned char)( ctx->ipad[i] ^ key[i] );
+ ctx->opad[i] = (unsigned char)( ctx->opad[i] ^ key[i] );
+ }
+
+ sha4_starts( ctx, is384 );
+ sha4_update( ctx, ctx->ipad, 128 );
+
+ memset( sum, 0, sizeof( sum ) );
+}
+
+/*
+ * SHA-512 HMAC process buffer
+ */
+void sha4_hmac_update( sha4_context *ctx,
+ const unsigned char *input, size_t ilen )
+{
+ sha4_update( ctx, input, ilen );
+}
+
+/*
+ * SHA-512 HMAC final digest
+ */
+void sha4_hmac_finish( sha4_context *ctx, unsigned char output[64] )
+{
+ int is384, hlen;
+ unsigned char tmpbuf[64];
+
+ is384 = ctx->is384;
+ hlen = ( is384 == 0 ) ? 64 : 48;
+
+ sha4_finish( ctx, tmpbuf );
+ sha4_starts( ctx, is384 );
+ sha4_update( ctx, ctx->opad, 128 );
+ sha4_update( ctx, tmpbuf, hlen );
+ sha4_finish( ctx, output );
+
+ memset( tmpbuf, 0, sizeof( tmpbuf ) );
+}
+
+/*
+ * SHA-512 HMAC context reset
+ */
+void sha4_hmac_reset( sha4_context *ctx )
+{
+ sha4_starts( ctx, ctx->is384 );
+ sha4_update( ctx, ctx->ipad, 128 );
+}
+
+/*
+ * output = HMAC-SHA-512( hmac key, input buffer )
+ */
+void sha4_hmac( const unsigned char *key, size_t keylen,
+ const unsigned char *input, size_t ilen,
+ unsigned char output[64], int is384 )
+{
+ sha4_context ctx;
+
+ sha4_hmac_starts( &ctx, key, keylen, is384 );
+ sha4_hmac_update( &ctx, input, ilen );
+ sha4_hmac_finish( &ctx, output );
+
+ memset( &ctx, 0, sizeof( sha4_context ) );
+}
+
+#if defined(POLARSSL_SELF_TEST)
+
+/*
+ * FIPS-180-2 test vectors
+ */
+static unsigned char sha4_test_buf[3][113] =
+{
+ { "abc" },
+ { "abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmn"
+ "hijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu" },
+ { "" }
+};
+
+static const int sha4_test_buflen[3] =
+{
+ 3, 112, 1000
+};
+
+static const unsigned char sha4_test_sum[6][64] =
+{
+ /*
+ * SHA-384 test vectors
+ */
+ { 0xCB, 0x00, 0x75, 0x3F, 0x45, 0xA3, 0x5E, 0x8B,
+ 0xB5, 0xA0, 0x3D, 0x69, 0x9A, 0xC6, 0x50, 0x07,
+ 0x27, 0x2C, 0x32, 0xAB, 0x0E, 0xDE, 0xD1, 0x63,
+ 0x1A, 0x8B, 0x60, 0x5A, 0x43, 0xFF, 0x5B, 0xED,
+ 0x80, 0x86, 0x07, 0x2B, 0xA1, 0xE7, 0xCC, 0x23,
+ 0x58, 0xBA, 0xEC, 0xA1, 0x34, 0xC8, 0x25, 0xA7 },
+ { 0x09, 0x33, 0x0C, 0x33, 0xF7, 0x11, 0x47, 0xE8,
+ 0x3D, 0x19, 0x2F, 0xC7, 0x82, 0xCD, 0x1B, 0x47,
+ 0x53, 0x11, 0x1B, 0x17, 0x3B, 0x3B, 0x05, 0xD2,
+ 0x2F, 0xA0, 0x80, 0x86, 0xE3, 0xB0, 0xF7, 0x12,
+ 0xFC, 0xC7, 0xC7, 0x1A, 0x55, 0x7E, 0x2D, 0xB9,
+ 0x66, 0xC3, 0xE9, 0xFA, 0x91, 0x74, 0x60, 0x39 },
+ { 0x9D, 0x0E, 0x18, 0x09, 0x71, 0x64, 0x74, 0xCB,
+ 0x08, 0x6E, 0x83, 0x4E, 0x31, 0x0A, 0x4A, 0x1C,
+ 0xED, 0x14, 0x9E, 0x9C, 0x00, 0xF2, 0x48, 0x52,
+ 0x79, 0x72, 0xCE, 0xC5, 0x70, 0x4C, 0x2A, 0x5B,
+ 0x07, 0xB8, 0xB3, 0xDC, 0x38, 0xEC, 0xC4, 0xEB,
+ 0xAE, 0x97, 0xDD, 0xD8, 0x7F, 0x3D, 0x89, 0x85 },
+
+ /*
+ * SHA-512 test vectors
+ */
+ { 0xDD, 0xAF, 0x35, 0xA1, 0x93, 0x61, 0x7A, 0xBA,
+ 0xCC, 0x41, 0x73, 0x49, 0xAE, 0x20, 0x41, 0x31,
+ 0x12, 0xE6, 0xFA, 0x4E, 0x89, 0xA9, 0x7E, 0xA2,
+ 0x0A, 0x9E, 0xEE, 0xE6, 0x4B, 0x55, 0xD3, 0x9A,
+ 0x21, 0x92, 0x99, 0x2A, 0x27, 0x4F, 0xC1, 0xA8,
+ 0x36, 0xBA, 0x3C, 0x23, 0xA3, 0xFE, 0xEB, 0xBD,
+ 0x45, 0x4D, 0x44, 0x23, 0x64, 0x3C, 0xE8, 0x0E,
+ 0x2A, 0x9A, 0xC9, 0x4F, 0xA5, 0x4C, 0xA4, 0x9F },
+ { 0x8E, 0x95, 0x9B, 0x75, 0xDA, 0xE3, 0x13, 0xDA,
+ 0x8C, 0xF4, 0xF7, 0x28, 0x14, 0xFC, 0x14, 0x3F,
+ 0x8F, 0x77, 0x79, 0xC6, 0xEB, 0x9F, 0x7F, 0xA1,
+ 0x72, 0x99, 0xAE, 0xAD, 0xB6, 0x88, 0x90, 0x18,
+ 0x50, 0x1D, 0x28, 0x9E, 0x49, 0x00, 0xF7, 0xE4,
+ 0x33, 0x1B, 0x99, 0xDE, 0xC4, 0xB5, 0x43, 0x3A,
+ 0xC7, 0xD3, 0x29, 0xEE, 0xB6, 0xDD, 0x26, 0x54,
+ 0x5E, 0x96, 0xE5, 0x5B, 0x87, 0x4B, 0xE9, 0x09 },
+ { 0xE7, 0x18, 0x48, 0x3D, 0x0C, 0xE7, 0x69, 0x64,
+ 0x4E, 0x2E, 0x42, 0xC7, 0xBC, 0x15, 0xB4, 0x63,
+ 0x8E, 0x1F, 0x98, 0xB1, 0x3B, 0x20, 0x44, 0x28,
+ 0x56, 0x32, 0xA8, 0x03, 0xAF, 0xA9, 0x73, 0xEB,
+ 0xDE, 0x0F, 0xF2, 0x44, 0x87, 0x7E, 0xA6, 0x0A,
+ 0x4C, 0xB0, 0x43, 0x2C, 0xE5, 0x77, 0xC3, 0x1B,
+ 0xEB, 0x00, 0x9C, 0x5C, 0x2C, 0x49, 0xAA, 0x2E,
+ 0x4E, 0xAD, 0xB2, 0x17, 0xAD, 0x8C, 0xC0, 0x9B }
+};
+
+/*
+ * RFC 4231 test vectors
+ */
+static unsigned char sha4_hmac_test_key[7][26] =
+{
+ { "\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B"
+ "\x0B\x0B\x0B\x0B" },
+ { "Jefe" },
+ { "\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA"
+ "\xAA\xAA\xAA\xAA" },
+ { "\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0A\x0B\x0C\x0D\x0E\x0F\x10"
+ "\x11\x12\x13\x14\x15\x16\x17\x18\x19" },
+ { "\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C"
+ "\x0C\x0C\x0C\x0C" },
+ { "" }, /* 0xAA 131 times */
+ { "" }
+};
+
+static const int sha4_hmac_test_keylen[7] =
+{
+ 20, 4, 20, 25, 20, 131, 131
+};
+
+static unsigned char sha4_hmac_test_buf[7][153] =
+{
+ { "Hi There" },
+ { "what do ya want for nothing?" },
+ { "\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD"
+ "\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD"
+ "\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD"
+ "\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD"
+ "\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD" },
+ { "\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD"
+ "\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD"
+ "\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD"
+ "\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD"
+ "\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD" },
+ { "Test With Truncation" },
+ { "Test Using Larger Than Block-Size Key - Hash Key First" },
+ { "This is a test using a larger than block-size key "
+ "and a larger than block-size data. The key needs to "
+ "be hashed before being used by the HMAC algorithm." }
+};
+
+static const int sha4_hmac_test_buflen[7] =
+{
+ 8, 28, 50, 50, 20, 54, 152
+};
+
+static const unsigned char sha4_hmac_test_sum[14][64] =
+{
+ /*
+ * HMAC-SHA-384 test vectors
+ */
+ { 0xAF, 0xD0, 0x39, 0x44, 0xD8, 0x48, 0x95, 0x62,
+ 0x6B, 0x08, 0x25, 0xF4, 0xAB, 0x46, 0x90, 0x7F,
+ 0x15, 0xF9, 0xDA, 0xDB, 0xE4, 0x10, 0x1E, 0xC6,
+ 0x82, 0xAA, 0x03, 0x4C, 0x7C, 0xEB, 0xC5, 0x9C,
+ 0xFA, 0xEA, 0x9E, 0xA9, 0x07, 0x6E, 0xDE, 0x7F,
+ 0x4A, 0xF1, 0x52, 0xE8, 0xB2, 0xFA, 0x9C, 0xB6 },
+ { 0xAF, 0x45, 0xD2, 0xE3, 0x76, 0x48, 0x40, 0x31,
+ 0x61, 0x7F, 0x78, 0xD2, 0xB5, 0x8A, 0x6B, 0x1B,
+ 0x9C, 0x7E, 0xF4, 0x64, 0xF5, 0xA0, 0x1B, 0x47,
+ 0xE4, 0x2E, 0xC3, 0x73, 0x63, 0x22, 0x44, 0x5E,
+ 0x8E, 0x22, 0x40, 0xCA, 0x5E, 0x69, 0xE2, 0xC7,
+ 0x8B, 0x32, 0x39, 0xEC, 0xFA, 0xB2, 0x16, 0x49 },
+ { 0x88, 0x06, 0x26, 0x08, 0xD3, 0xE6, 0xAD, 0x8A,
+ 0x0A, 0xA2, 0xAC, 0xE0, 0x14, 0xC8, 0xA8, 0x6F,
+ 0x0A, 0xA6, 0x35, 0xD9, 0x47, 0xAC, 0x9F, 0xEB,
+ 0xE8, 0x3E, 0xF4, 0xE5, 0x59, 0x66, 0x14, 0x4B,
+ 0x2A, 0x5A, 0xB3, 0x9D, 0xC1, 0x38, 0x14, 0xB9,
+ 0x4E, 0x3A, 0xB6, 0xE1, 0x01, 0xA3, 0x4F, 0x27 },
+ { 0x3E, 0x8A, 0x69, 0xB7, 0x78, 0x3C, 0x25, 0x85,
+ 0x19, 0x33, 0xAB, 0x62, 0x90, 0xAF, 0x6C, 0xA7,
+ 0x7A, 0x99, 0x81, 0x48, 0x08, 0x50, 0x00, 0x9C,
+ 0xC5, 0x57, 0x7C, 0x6E, 0x1F, 0x57, 0x3B, 0x4E,
+ 0x68, 0x01, 0xDD, 0x23, 0xC4, 0xA7, 0xD6, 0x79,
+ 0xCC, 0xF8, 0xA3, 0x86, 0xC6, 0x74, 0xCF, 0xFB },
+ { 0x3A, 0xBF, 0x34, 0xC3, 0x50, 0x3B, 0x2A, 0x23,
+ 0xA4, 0x6E, 0xFC, 0x61, 0x9B, 0xAE, 0xF8, 0x97 },
+ { 0x4E, 0xCE, 0x08, 0x44, 0x85, 0x81, 0x3E, 0x90,
+ 0x88, 0xD2, 0xC6, 0x3A, 0x04, 0x1B, 0xC5, 0xB4,
+ 0x4F, 0x9E, 0xF1, 0x01, 0x2A, 0x2B, 0x58, 0x8F,
+ 0x3C, 0xD1, 0x1F, 0x05, 0x03, 0x3A, 0xC4, 0xC6,
+ 0x0C, 0x2E, 0xF6, 0xAB, 0x40, 0x30, 0xFE, 0x82,
+ 0x96, 0x24, 0x8D, 0xF1, 0x63, 0xF4, 0x49, 0x52 },
+ { 0x66, 0x17, 0x17, 0x8E, 0x94, 0x1F, 0x02, 0x0D,
+ 0x35, 0x1E, 0x2F, 0x25, 0x4E, 0x8F, 0xD3, 0x2C,
+ 0x60, 0x24, 0x20, 0xFE, 0xB0, 0xB8, 0xFB, 0x9A,
+ 0xDC, 0xCE, 0xBB, 0x82, 0x46, 0x1E, 0x99, 0xC5,
+ 0xA6, 0x78, 0xCC, 0x31, 0xE7, 0x99, 0x17, 0x6D,
+ 0x38, 0x60, 0xE6, 0x11, 0x0C, 0x46, 0x52, 0x3E },
+
+ /*
+ * HMAC-SHA-512 test vectors
+ */
+ { 0x87, 0xAA, 0x7C, 0xDE, 0xA5, 0xEF, 0x61, 0x9D,
+ 0x4F, 0xF0, 0xB4, 0x24, 0x1A, 0x1D, 0x6C, 0xB0,
+ 0x23, 0x79, 0xF4, 0xE2, 0xCE, 0x4E, 0xC2, 0x78,
+ 0x7A, 0xD0, 0xB3, 0x05, 0x45, 0xE1, 0x7C, 0xDE,
+ 0xDA, 0xA8, 0x33, 0xB7, 0xD6, 0xB8, 0xA7, 0x02,
+ 0x03, 0x8B, 0x27, 0x4E, 0xAE, 0xA3, 0xF4, 0xE4,
+ 0xBE, 0x9D, 0x91, 0x4E, 0xEB, 0x61, 0xF1, 0x70,
+ 0x2E, 0x69, 0x6C, 0x20, 0x3A, 0x12, 0x68, 0x54 },
+ { 0x16, 0x4B, 0x7A, 0x7B, 0xFC, 0xF8, 0x19, 0xE2,
+ 0xE3, 0x95, 0xFB, 0xE7, 0x3B, 0x56, 0xE0, 0xA3,
+ 0x87, 0xBD, 0x64, 0x22, 0x2E, 0x83, 0x1F, 0xD6,
+ 0x10, 0x27, 0x0C, 0xD7, 0xEA, 0x25, 0x05, 0x54,
+ 0x97, 0x58, 0xBF, 0x75, 0xC0, 0x5A, 0x99, 0x4A,
+ 0x6D, 0x03, 0x4F, 0x65, 0xF8, 0xF0, 0xE6, 0xFD,
+ 0xCA, 0xEA, 0xB1, 0xA3, 0x4D, 0x4A, 0x6B, 0x4B,
+ 0x63, 0x6E, 0x07, 0x0A, 0x38, 0xBC, 0xE7, 0x37 },
+ { 0xFA, 0x73, 0xB0, 0x08, 0x9D, 0x56, 0xA2, 0x84,
+ 0xEF, 0xB0, 0xF0, 0x75, 0x6C, 0x89, 0x0B, 0xE9,
+ 0xB1, 0xB5, 0xDB, 0xDD, 0x8E, 0xE8, 0x1A, 0x36,
+ 0x55, 0xF8, 0x3E, 0x33, 0xB2, 0x27, 0x9D, 0x39,
+ 0xBF, 0x3E, 0x84, 0x82, 0x79, 0xA7, 0x22, 0xC8,
+ 0x06, 0xB4, 0x85, 0xA4, 0x7E, 0x67, 0xC8, 0x07,
+ 0xB9, 0x46, 0xA3, 0x37, 0xBE, 0xE8, 0x94, 0x26,
+ 0x74, 0x27, 0x88, 0x59, 0xE1, 0x32, 0x92, 0xFB },
+ { 0xB0, 0xBA, 0x46, 0x56, 0x37, 0x45, 0x8C, 0x69,
+ 0x90, 0xE5, 0xA8, 0xC5, 0xF6, 0x1D, 0x4A, 0xF7,
+ 0xE5, 0x76, 0xD9, 0x7F, 0xF9, 0x4B, 0x87, 0x2D,
+ 0xE7, 0x6F, 0x80, 0x50, 0x36, 0x1E, 0xE3, 0xDB,
+ 0xA9, 0x1C, 0xA5, 0xC1, 0x1A, 0xA2, 0x5E, 0xB4,
+ 0xD6, 0x79, 0x27, 0x5C, 0xC5, 0x78, 0x80, 0x63,
+ 0xA5, 0xF1, 0x97, 0x41, 0x12, 0x0C, 0x4F, 0x2D,
+ 0xE2, 0xAD, 0xEB, 0xEB, 0x10, 0xA2, 0x98, 0xDD },
+ { 0x41, 0x5F, 0xAD, 0x62, 0x71, 0x58, 0x0A, 0x53,
+ 0x1D, 0x41, 0x79, 0xBC, 0x89, 0x1D, 0x87, 0xA6 },
+ { 0x80, 0xB2, 0x42, 0x63, 0xC7, 0xC1, 0xA3, 0xEB,
+ 0xB7, 0x14, 0x93, 0xC1, 0xDD, 0x7B, 0xE8, 0xB4,
+ 0x9B, 0x46, 0xD1, 0xF4, 0x1B, 0x4A, 0xEE, 0xC1,
+ 0x12, 0x1B, 0x01, 0x37, 0x83, 0xF8, 0xF3, 0x52,
+ 0x6B, 0x56, 0xD0, 0x37, 0xE0, 0x5F, 0x25, 0x98,
+ 0xBD, 0x0F, 0xD2, 0x21, 0x5D, 0x6A, 0x1E, 0x52,
+ 0x95, 0xE6, 0x4F, 0x73, 0xF6, 0x3F, 0x0A, 0xEC,
+ 0x8B, 0x91, 0x5A, 0x98, 0x5D, 0x78, 0x65, 0x98 },
+ { 0xE3, 0x7B, 0x6A, 0x77, 0x5D, 0xC8, 0x7D, 0xBA,
+ 0xA4, 0xDF, 0xA9, 0xF9, 0x6E, 0x5E, 0x3F, 0xFD,
+ 0xDE, 0xBD, 0x71, 0xF8, 0x86, 0x72, 0x89, 0x86,
+ 0x5D, 0xF5, 0xA3, 0x2D, 0x20, 0xCD, 0xC9, 0x44,
+ 0xB6, 0x02, 0x2C, 0xAC, 0x3C, 0x49, 0x82, 0xB1,
+ 0x0D, 0x5E, 0xEB, 0x55, 0xC3, 0xE4, 0xDE, 0x15,
+ 0x13, 0x46, 0x76, 0xFB, 0x6D, 0xE0, 0x44, 0x60,
+ 0x65, 0xC9, 0x74, 0x40, 0xFA, 0x8C, 0x6A, 0x58 }
+};
+
+/*
+ * Checkup routine
+ */
+int sha4_self_test( int verbose )
+{
+ int i, j, k, buflen;
+ unsigned char buf[1024];
+ unsigned char sha4sum[64];
+ sha4_context ctx;
+
+ for( i = 0; i < 6; i++ )
+ {
+ j = i % 3;
+ k = i < 3;
+
+ if( verbose != 0 )
+ printf( " SHA-%d test #%d: ", 512 - k * 128, j + 1 );
+
+ sha4_starts( &ctx, k );
+
+ if( j == 2 )
+ {
+ memset( buf, 'a', buflen = 1000 );
+
+ for( j = 0; j < 1000; j++ )
+ sha4_update( &ctx, buf, buflen );
+ }
+ else
+ sha4_update( &ctx, sha4_test_buf[j],
+ sha4_test_buflen[j] );
+
+ sha4_finish( &ctx, sha4sum );
+
+ if( memcmp( sha4sum, sha4_test_sum[i], 64 - k * 16 ) != 0 )
+ {
+ if( verbose != 0 )
+ printf( "failed\n" );
+
+ return( 1 );
+ }
+
+ if( verbose != 0 )
+ printf( "passed\n" );
+ }
+
+ if( verbose != 0 )
+ printf( "\n" );
+
+ for( i = 0; i < 14; i++ )
+ {
+ j = i % 7;
+ k = i < 7;
+
+ if( verbose != 0 )
+ printf( " HMAC-SHA-%d test #%d: ", 512 - k * 128, j + 1 );
+
+ if( j == 5 || j == 6 )
+ {
+ memset( buf, '\xAA', buflen = 131 );
+ sha4_hmac_starts( &ctx, buf, buflen, k );
+ }
+ else
+ sha4_hmac_starts( &ctx, sha4_hmac_test_key[j],
+ sha4_hmac_test_keylen[j], k );
+
+ sha4_hmac_update( &ctx, sha4_hmac_test_buf[j],
+ sha4_hmac_test_buflen[j] );
+
+ sha4_hmac_finish( &ctx, sha4sum );
+
+ buflen = ( j == 4 ) ? 16 : 64 - k * 16;
+
+ if( memcmp( sha4sum, sha4_hmac_test_sum[i], buflen ) != 0 )
+ {
+ if( verbose != 0 )
+ printf( "failed\n" );
+
+ return( 1 );
+ }
+
+ if( verbose != 0 )
+ printf( "passed\n" );
+ }
+
+ if( verbose != 0 )
+ printf( "\n" );
+
+ return( 0 );
+}
+
+#endif
+
+#endif
--- /dev/null
+/*
+ * SSLv3/TLSv1 client-side functions
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "polarssl/config.h"
+
+#if defined(POLARSSL_SSL_CLI_C)
+
+#include "polarssl/debug.h"
+#include "polarssl/ssl.h"
+
+#if defined(POLARSSL_PKCS11_C)
+#include "polarssl/pkcs11.h"
+#endif /* defined(POLARSSL_PKCS11_C) */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <time.h>
+
+static int ssl_write_client_hello( ssl_context *ssl )
+{
+ int ret;
+ size_t i, n;
+ unsigned char *buf;
+ unsigned char *p;
+ time_t t;
+
+ SSL_DEBUG_MSG( 2, ( "=> write client hello" ) );
+
+ ssl->major_ver = SSL_MAJOR_VERSION_3;
+ ssl->minor_ver = SSL_MINOR_VERSION_0;
+
+ if( ssl->max_major_ver == 0 && ssl->max_minor_ver == 0 )
+ {
+ ssl->max_major_ver = SSL_MAJOR_VERSION_3;
+ ssl->max_minor_ver = SSL_MINOR_VERSION_2;
+ }
+
+ /*
+ * 0 . 0 handshake type
+ * 1 . 3 handshake length
+ * 4 . 5 highest version supported
+ * 6 . 9 current UNIX time
+ * 10 . 37 random bytes
+ */
+ buf = ssl->out_msg;
+ p = buf + 4;
+
+ *p++ = (unsigned char) ssl->max_major_ver;
+ *p++ = (unsigned char) ssl->max_minor_ver;
+
+ SSL_DEBUG_MSG( 3, ( "client hello, max version: [%d:%d]",
+ buf[4], buf[5] ) );
+
+ t = time( NULL );
+ *p++ = (unsigned char)( t >> 24 );
+ *p++ = (unsigned char)( t >> 16 );
+ *p++ = (unsigned char)( t >> 8 );
+ *p++ = (unsigned char)( t );
+
+ SSL_DEBUG_MSG( 3, ( "client hello, current time: %lu", t ) );
+
+ if( ( ret = ssl->f_rng( ssl->p_rng, p, 28 ) ) != 0 )
+ return( ret );
+
+ p += 28;
+
+ memcpy( ssl->randbytes, buf + 6, 32 );
+
+ SSL_DEBUG_BUF( 3, "client hello, random bytes", buf + 6, 32 );
+
+ /*
+ * 38 . 38 session id length
+ * 39 . 39+n session id
+ * 40+n . 41+n ciphersuitelist length
+ * 42+n . .. ciphersuitelist
+ * .. . .. compression alg. (0)
+ * .. . .. extensions (unused)
+ */
+ n = ssl->session->length;
+
+ if( n < 16 || n > 32 || ssl->resume == 0 ||
+ ( ssl->timeout != 0 && t - ssl->session->start > ssl->timeout ) )
+ n = 0;
+
+ *p++ = (unsigned char) n;
+
+ for( i = 0; i < n; i++ )
+ *p++ = ssl->session->id[i];
+
+ SSL_DEBUG_MSG( 3, ( "client hello, session id len.: %d", n ) );
+ SSL_DEBUG_BUF( 3, "client hello, session id", buf + 39, n );
+
+ for( n = 0; ssl->ciphersuites[n] != 0; n++ );
+ *p++ = (unsigned char)( n >> 7 );
+ *p++ = (unsigned char)( n << 1 );
+
+ SSL_DEBUG_MSG( 3, ( "client hello, got %d ciphersuites", n ) );
+
+ for( i = 0; i < n; i++ )
+ {
+ SSL_DEBUG_MSG( 3, ( "client hello, add ciphersuite: %2d",
+ ssl->ciphersuites[i] ) );
+
+ *p++ = (unsigned char)( ssl->ciphersuites[i] >> 8 );
+ *p++ = (unsigned char)( ssl->ciphersuites[i] );
+ }
+
+ SSL_DEBUG_MSG( 3, ( "client hello, compress len.: %d", 1 ) );
+ SSL_DEBUG_MSG( 3, ( "client hello, compress alg.: %d", 0 ) );
+
+ *p++ = 1;
+ *p++ = SSL_COMPRESS_NULL;
+
+ if ( ssl->hostname != NULL )
+ {
+ SSL_DEBUG_MSG( 3, ( "client hello, server name extension: %s",
+ ssl->hostname ) );
+
+ *p++ = (unsigned char)( ( (ssl->hostname_len + 9) >> 8 ) & 0xFF );
+ *p++ = (unsigned char)( ( (ssl->hostname_len + 9) ) & 0xFF );
+
+ *p++ = (unsigned char)( ( TLS_EXT_SERVERNAME >> 8 ) & 0xFF );
+ *p++ = (unsigned char)( ( TLS_EXT_SERVERNAME ) & 0xFF );
+
+ *p++ = (unsigned char)( ( (ssl->hostname_len + 5) >> 8 ) & 0xFF );
+ *p++ = (unsigned char)( ( (ssl->hostname_len + 5) ) & 0xFF );
+
+ *p++ = (unsigned char)( ( (ssl->hostname_len + 3) >> 8 ) & 0xFF );
+ *p++ = (unsigned char)( ( (ssl->hostname_len + 3) ) & 0xFF );
+
+ *p++ = (unsigned char)( ( TLS_EXT_SERVERNAME_HOSTNAME ) & 0xFF );
+ *p++ = (unsigned char)( ( ssl->hostname_len >> 8 ) & 0xFF );
+ *p++ = (unsigned char)( ( ssl->hostname_len ) & 0xFF );
+
+ memcpy( p, ssl->hostname, ssl->hostname_len );
+
+ p += ssl->hostname_len;
+ }
+
+ ssl->out_msglen = p - buf;
+ ssl->out_msgtype = SSL_MSG_HANDSHAKE;
+ ssl->out_msg[0] = SSL_HS_CLIENT_HELLO;
+
+ ssl->state++;
+
+ if( ( ret = ssl_write_record( ssl ) ) != 0 )
+ {
+ SSL_DEBUG_RET( 1, "ssl_write_record", ret );
+ return( ret );
+ }
+
+ SSL_DEBUG_MSG( 2, ( "<= write client hello" ) );
+
+ return( 0 );
+}
+
+static int ssl_parse_server_hello( ssl_context *ssl )
+{
+#if defined(POLARSSL_DEBUG_MSG) && defined(POLARSSL_DEBUG_C)
+ time_t t;
+#endif
+ int ret, i;
+ size_t n;
+ int ext_len;
+ unsigned char *buf;
+
+ SSL_DEBUG_MSG( 2, ( "=> parse server hello" ) );
+
+ /*
+ * 0 . 0 handshake type
+ * 1 . 3 handshake length
+ * 4 . 5 protocol version
+ * 6 . 9 UNIX time()
+ * 10 . 37 random bytes
+ */
+ buf = ssl->in_msg;
+
+ if( ( ret = ssl_read_record( ssl ) ) != 0 )
+ {
+ SSL_DEBUG_RET( 1, "ssl_read_record", ret );
+ return( ret );
+ }
+
+ if( ssl->in_msgtype != SSL_MSG_HANDSHAKE )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad server hello message" ) );
+ return( POLARSSL_ERR_SSL_UNEXPECTED_MESSAGE );
+ }
+
+ SSL_DEBUG_MSG( 3, ( "server hello, chosen version: [%d:%d]",
+ buf[4], buf[5] ) );
+
+ if( ssl->in_hslen < 42 ||
+ buf[0] != SSL_HS_SERVER_HELLO ||
+ buf[4] != SSL_MAJOR_VERSION_3 )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad server hello message" ) );
+ return( POLARSSL_ERR_SSL_BAD_HS_SERVER_HELLO );
+ }
+
+ if( buf[5] > ssl->max_minor_ver )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad server hello message" ) );
+ return( POLARSSL_ERR_SSL_BAD_HS_SERVER_HELLO );
+ }
+
+ ssl->minor_ver = buf[5];
+
+#if defined(POLARSSL_DEBUG_MSG) && defined(POLARSSL_DEBUG_C)
+ t = ( (time_t) buf[6] << 24 )
+ | ( (time_t) buf[7] << 16 )
+ | ( (time_t) buf[8] << 8 )
+ | ( (time_t) buf[9] );
+#endif
+
+ memcpy( ssl->randbytes + 32, buf + 6, 32 );
+
+ n = buf[38];
+
+ SSL_DEBUG_MSG( 3, ( "server hello, current time: %lu", t ) );
+ SSL_DEBUG_BUF( 3, "server hello, random bytes", buf + 6, 32 );
+
+ /*
+ * 38 . 38 session id length
+ * 39 . 38+n session id
+ * 39+n . 40+n chosen ciphersuite
+ * 41+n . 41+n chosen compression alg.
+ * 42+n . 43+n extensions length
+ * 44+n . 44+n+m extensions
+ */
+ if( n > 32 || ssl->in_hslen > 42 + n )
+ {
+ ext_len = ( ( buf[42 + n] << 8 )
+ | ( buf[43 + n] ) ) + 2;
+ }
+ else
+ {
+ ext_len = 0;
+ }
+
+ if( n > 32 || ssl->in_hslen != 42 + n + ext_len )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad server hello message" ) );
+ return( POLARSSL_ERR_SSL_BAD_HS_SERVER_HELLO );
+ }
+
+ i = ( buf[39 + n] << 8 ) | buf[40 + n];
+
+ SSL_DEBUG_MSG( 3, ( "server hello, session id len.: %d", n ) );
+ SSL_DEBUG_BUF( 3, "server hello, session id", buf + 39, n );
+
+ /*
+ * Check if the session can be resumed
+ */
+ if( ssl->resume == 0 || n == 0 ||
+ ssl->session->ciphersuite != i ||
+ ssl->session->length != n ||
+ memcmp( ssl->session->id, buf + 39, n ) != 0 )
+ {
+ ssl->state++;
+ ssl->resume = 0;
+ ssl->session->start = time( NULL );
+ ssl->session->ciphersuite = i;
+ ssl->session->length = n;
+ memcpy( ssl->session->id, buf + 39, n );
+ }
+ else
+ {
+ ssl->state = SSL_SERVER_CHANGE_CIPHER_SPEC;
+
+ if( ( ret = ssl_derive_keys( ssl ) ) != 0 )
+ {
+ SSL_DEBUG_RET( 1, "ssl_derive_keys", ret );
+ return( ret );
+ }
+ }
+
+ SSL_DEBUG_MSG( 3, ( "%s session has been resumed",
+ ssl->resume ? "a" : "no" ) );
+
+ SSL_DEBUG_MSG( 3, ( "server hello, chosen ciphersuite: %d", i ) );
+ SSL_DEBUG_MSG( 3, ( "server hello, compress alg.: %d", buf[41 + n] ) );
+
+ i = 0;
+ while( 1 )
+ {
+ if( ssl->ciphersuites[i] == 0 )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad server hello message" ) );
+ return( POLARSSL_ERR_SSL_BAD_HS_SERVER_HELLO );
+ }
+
+ if( ssl->ciphersuites[i++] == ssl->session->ciphersuite )
+ break;
+ }
+
+ if( buf[41 + n] != SSL_COMPRESS_NULL )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad server hello message" ) );
+ return( POLARSSL_ERR_SSL_BAD_HS_SERVER_HELLO );
+ }
+
+ /* TODO: Process extensions */
+
+ SSL_DEBUG_MSG( 2, ( "<= parse server hello" ) );
+
+ return( 0 );
+}
+
+static int ssl_parse_server_key_exchange( ssl_context *ssl )
+{
+#if defined(POLARSSL_DHM_C)
+ int ret;
+ size_t n;
+ unsigned char *p, *end;
+ unsigned char hash[36];
+ md5_context md5;
+ sha1_context sha1;
+#endif
+
+ SSL_DEBUG_MSG( 2, ( "=> parse server key exchange" ) );
+
+ if( ssl->session->ciphersuite != SSL_EDH_RSA_DES_168_SHA &&
+ ssl->session->ciphersuite != SSL_EDH_RSA_AES_128_SHA &&
+ ssl->session->ciphersuite != SSL_EDH_RSA_AES_256_SHA &&
+ ssl->session->ciphersuite != SSL_EDH_RSA_CAMELLIA_128_SHA &&
+ ssl->session->ciphersuite != SSL_EDH_RSA_CAMELLIA_256_SHA)
+ {
+ SSL_DEBUG_MSG( 2, ( "<= skip parse server key exchange" ) );
+ ssl->state++;
+ return( 0 );
+ }
+
+#if !defined(POLARSSL_DHM_C)
+ SSL_DEBUG_MSG( 1, ( "support for dhm in not available" ) );
+ return( POLARSSL_ERR_SSL_FEATURE_UNAVAILABLE );
+#else
+ if( ( ret = ssl_read_record( ssl ) ) != 0 )
+ {
+ SSL_DEBUG_RET( 1, "ssl_read_record", ret );
+ return( ret );
+ }
+
+ if( ssl->in_msgtype != SSL_MSG_HANDSHAKE )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) );
+ return( POLARSSL_ERR_SSL_UNEXPECTED_MESSAGE );
+ }
+
+ if( ssl->in_msg[0] != SSL_HS_SERVER_KEY_EXCHANGE )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) );
+ return( POLARSSL_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
+ }
+
+ /*
+ * Ephemeral DH parameters:
+ *
+ * struct {
+ * opaque dh_p<1..2^16-1>;
+ * opaque dh_g<1..2^16-1>;
+ * opaque dh_Ys<1..2^16-1>;
+ * } ServerDHParams;
+ */
+ p = ssl->in_msg + 4;
+ end = ssl->in_msg + ssl->in_hslen;
+
+ if( ( ret = dhm_read_params( &ssl->dhm_ctx, &p, end ) ) != 0 )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) );
+ return( POLARSSL_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
+ }
+
+ if( (unsigned int)( end - p ) != ssl->peer_cert->rsa.len )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) );
+ return( POLARSSL_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
+ }
+
+ if( ssl->dhm_ctx.len < 64 || ssl->dhm_ctx.len > 512 )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) );
+ return( POLARSSL_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
+ }
+
+ SSL_DEBUG_MPI( 3, "DHM: P ", &ssl->dhm_ctx.P );
+ SSL_DEBUG_MPI( 3, "DHM: G ", &ssl->dhm_ctx.G );
+ SSL_DEBUG_MPI( 3, "DHM: GY", &ssl->dhm_ctx.GY );
+
+ /*
+ * digitally-signed struct {
+ * opaque md5_hash[16];
+ * opaque sha_hash[20];
+ * };
+ *
+ * md5_hash
+ * MD5(ClientHello.random + ServerHello.random
+ * + ServerParams);
+ * sha_hash
+ * SHA(ClientHello.random + ServerHello.random
+ * + ServerParams);
+ */
+ n = ssl->in_hslen - ( end - p ) - 6;
+
+ md5_starts( &md5 );
+ md5_update( &md5, ssl->randbytes, 64 );
+ md5_update( &md5, ssl->in_msg + 4, n );
+ md5_finish( &md5, hash );
+
+ sha1_starts( &sha1 );
+ sha1_update( &sha1, ssl->randbytes, 64 );
+ sha1_update( &sha1, ssl->in_msg + 4, n );
+ sha1_finish( &sha1, hash + 16 );
+
+ SSL_DEBUG_BUF( 3, "parameters hash", hash, 36 );
+
+ if( ( ret = rsa_pkcs1_verify( &ssl->peer_cert->rsa, RSA_PUBLIC,
+ SIG_RSA_RAW, 36, hash, p ) ) != 0 )
+ {
+ SSL_DEBUG_RET( 1, "rsa_pkcs1_verify", ret );
+ return( ret );
+ }
+
+ ssl->state++;
+
+ SSL_DEBUG_MSG( 2, ( "<= parse server key exchange" ) );
+
+ return( 0 );
+#endif
+}
+
+static int ssl_parse_certificate_request( ssl_context *ssl )
+{
+ int ret;
+
+ SSL_DEBUG_MSG( 2, ( "=> parse certificate request" ) );
+
+ /*
+ * 0 . 0 handshake type
+ * 1 . 3 handshake length
+ * 4 . 5 SSL version
+ * 6 . 6 cert type count
+ * 7 .. n-1 cert types
+ * n .. n+1 length of all DNs
+ * n+2 .. n+3 length of DN 1
+ * n+4 .. ... Distinguished Name #1
+ * ... .. ... length of DN 2, etc.
+ */
+ if( ( ret = ssl_read_record( ssl ) ) != 0 )
+ {
+ SSL_DEBUG_RET( 1, "ssl_read_record", ret );
+ return( ret );
+ }
+
+ if( ssl->in_msgtype != SSL_MSG_HANDSHAKE )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad certificate request message" ) );
+ return( POLARSSL_ERR_SSL_UNEXPECTED_MESSAGE );
+ }
+
+ ssl->client_auth = 0;
+ ssl->state++;
+
+ if( ssl->in_msg[0] == SSL_HS_CERTIFICATE_REQUEST )
+ ssl->client_auth++;
+
+ SSL_DEBUG_MSG( 3, ( "got %s certificate request",
+ ssl->client_auth ? "a" : "no" ) );
+
+ SSL_DEBUG_MSG( 2, ( "<= parse certificate request" ) );
+
+ return( 0 );
+}
+
+static int ssl_parse_server_hello_done( ssl_context *ssl )
+{
+ int ret;
+
+ SSL_DEBUG_MSG( 2, ( "=> parse server hello done" ) );
+
+ if( ssl->client_auth != 0 )
+ {
+ if( ( ret = ssl_read_record( ssl ) ) != 0 )
+ {
+ SSL_DEBUG_RET( 1, "ssl_read_record", ret );
+ return( ret );
+ }
+
+ if( ssl->in_msgtype != SSL_MSG_HANDSHAKE )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad server hello done message" ) );
+ return( POLARSSL_ERR_SSL_UNEXPECTED_MESSAGE );
+ }
+ }
+
+ if( ssl->in_hslen != 4 ||
+ ssl->in_msg[0] != SSL_HS_SERVER_HELLO_DONE )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad server hello done message" ) );
+ return( POLARSSL_ERR_SSL_BAD_HS_SERVER_HELLO_DONE );
+ }
+
+ ssl->state++;
+
+ SSL_DEBUG_MSG( 2, ( "<= parse server hello done" ) );
+
+ return( 0 );
+}
+
+static int ssl_write_client_key_exchange( ssl_context *ssl )
+{
+ int ret;
+ size_t i, n;
+
+ SSL_DEBUG_MSG( 2, ( "=> write client key exchange" ) );
+
+ if( ssl->session->ciphersuite == SSL_EDH_RSA_DES_168_SHA ||
+ ssl->session->ciphersuite == SSL_EDH_RSA_AES_128_SHA ||
+ ssl->session->ciphersuite == SSL_EDH_RSA_AES_256_SHA ||
+ ssl->session->ciphersuite == SSL_EDH_RSA_CAMELLIA_128_SHA ||
+ ssl->session->ciphersuite == SSL_EDH_RSA_CAMELLIA_256_SHA)
+ {
+#if !defined(POLARSSL_DHM_C)
+ SSL_DEBUG_MSG( 1, ( "support for dhm in not available" ) );
+ return( POLARSSL_ERR_SSL_FEATURE_UNAVAILABLE );
+#else
+ /*
+ * DHM key exchange -- send G^X mod P
+ */
+ n = ssl->dhm_ctx.len;
+
+ ssl->out_msg[4] = (unsigned char)( n >> 8 );
+ ssl->out_msg[5] = (unsigned char)( n );
+ i = 6;
+
+ ret = dhm_make_public( &ssl->dhm_ctx, 256,
+ &ssl->out_msg[i], n,
+ ssl->f_rng, ssl->p_rng );
+ if( ret != 0 )
+ {
+ SSL_DEBUG_RET( 1, "dhm_make_public", ret );
+ return( ret );
+ }
+
+ SSL_DEBUG_MPI( 3, "DHM: X ", &ssl->dhm_ctx.X );
+ SSL_DEBUG_MPI( 3, "DHM: GX", &ssl->dhm_ctx.GX );
+
+ ssl->pmslen = ssl->dhm_ctx.len;
+
+ if( ( ret = dhm_calc_secret( &ssl->dhm_ctx,
+ ssl->premaster,
+ &ssl->pmslen ) ) != 0 )
+ {
+ SSL_DEBUG_RET( 1, "dhm_calc_secret", ret );
+ return( ret );
+ }
+
+ SSL_DEBUG_MPI( 3, "DHM: K ", &ssl->dhm_ctx.K );
+#endif
+ }
+ else
+ {
+ /*
+ * RSA key exchange -- send rsa_public(pkcs1 v1.5(premaster))
+ */
+ ssl->premaster[0] = (unsigned char) ssl->max_major_ver;
+ ssl->premaster[1] = (unsigned char) ssl->max_minor_ver;
+ ssl->pmslen = 48;
+
+ ret = ssl->f_rng( ssl->p_rng, ssl->premaster + 2, ssl->pmslen - 2 );
+ if( ret != 0 )
+ return( ret );
+
+ i = 4;
+ n = ssl->peer_cert->rsa.len;
+
+ if( ssl->minor_ver != SSL_MINOR_VERSION_0 )
+ {
+ i += 2;
+ ssl->out_msg[4] = (unsigned char)( n >> 8 );
+ ssl->out_msg[5] = (unsigned char)( n );
+ }
+
+ ret = rsa_pkcs1_encrypt( &ssl->peer_cert->rsa,
+ ssl->f_rng, ssl->p_rng,
+ RSA_PUBLIC,
+ ssl->pmslen, ssl->premaster,
+ ssl->out_msg + i );
+ if( ret != 0 )
+ {
+ SSL_DEBUG_RET( 1, "rsa_pkcs1_encrypt", ret );
+ return( ret );
+ }
+ }
+
+ if( ( ret = ssl_derive_keys( ssl ) ) != 0 )
+ {
+ SSL_DEBUG_RET( 1, "ssl_derive_keys", ret );
+ return( ret );
+ }
+
+ ssl->out_msglen = i + n;
+ ssl->out_msgtype = SSL_MSG_HANDSHAKE;
+ ssl->out_msg[0] = SSL_HS_CLIENT_KEY_EXCHANGE;
+
+ ssl->state++;
+
+ if( ( ret = ssl_write_record( ssl ) ) != 0 )
+ {
+ SSL_DEBUG_RET( 1, "ssl_write_record", ret );
+ return( ret );
+ }
+
+ SSL_DEBUG_MSG( 2, ( "<= write client key exchange" ) );
+
+ return( 0 );
+}
+
+static int ssl_write_certificate_verify( ssl_context *ssl )
+{
+ int ret = 0;
+ size_t n = 0;
+ unsigned char hash[36];
+
+ SSL_DEBUG_MSG( 2, ( "=> write certificate verify" ) );
+
+ if( ssl->client_auth == 0 || ssl->own_cert == NULL )
+ {
+ SSL_DEBUG_MSG( 2, ( "<= skip write certificate verify" ) );
+ ssl->state++;
+ return( 0 );
+ }
+
+ if( ssl->rsa_key == NULL )
+ {
+#if defined(POLARSSL_PKCS11_C)
+ if( ssl->pkcs11_key == NULL )
+ {
+#endif /* defined(POLARSSL_PKCS11_C) */
+ SSL_DEBUG_MSG( 1, ( "got no private key" ) );
+ return( POLARSSL_ERR_SSL_PRIVATE_KEY_REQUIRED );
+#if defined(POLARSSL_PKCS11_C)
+ }
+#endif /* defined(POLARSSL_PKCS11_C) */
+ }
+
+ /*
+ * Make an RSA signature of the handshake digests
+ */
+ ssl_calc_verify( ssl, hash );
+
+ if ( ssl->rsa_key )
+ n = ssl->rsa_key->len;
+#if defined(POLARSSL_PKCS11_C)
+ else
+ n = ssl->pkcs11_key->len;
+#endif /* defined(POLARSSL_PKCS11_C) */
+
+ ssl->out_msg[4] = (unsigned char)( n >> 8 );
+ ssl->out_msg[5] = (unsigned char)( n );
+
+ if( ssl->rsa_key )
+ {
+ ret = rsa_pkcs1_sign( ssl->rsa_key, ssl->f_rng, ssl->p_rng,
+ RSA_PRIVATE, SIG_RSA_RAW,
+ 36, hash, ssl->out_msg + 6 );
+ } else {
+#if defined(POLARSSL_PKCS11_C)
+ ret = pkcs11_sign( ssl->pkcs11_key, RSA_PRIVATE, SIG_RSA_RAW,
+ 36, hash, ssl->out_msg + 6 );
+#endif /* defined(POLARSSL_PKCS11_C) */
+ }
+
+ if (ret != 0)
+ {
+ SSL_DEBUG_RET( 1, "pkcs1_sign", ret );
+ return( ret );
+ }
+
+ ssl->out_msglen = 6 + n;
+ ssl->out_msgtype = SSL_MSG_HANDSHAKE;
+ ssl->out_msg[0] = SSL_HS_CERTIFICATE_VERIFY;
+
+ ssl->state++;
+
+ if( ( ret = ssl_write_record( ssl ) ) != 0 )
+ {
+ SSL_DEBUG_RET( 1, "ssl_write_record", ret );
+ return( ret );
+ }
+
+ SSL_DEBUG_MSG( 2, ( "<= write certificate verify" ) );
+
+ return( 0 );
+}
+
+/*
+ * SSL handshake -- client side
+ */
+int ssl_handshake_client( ssl_context *ssl )
+{
+ int ret = 0;
+
+ SSL_DEBUG_MSG( 2, ( "=> handshake client" ) );
+
+ while( ssl->state != SSL_HANDSHAKE_OVER )
+ {
+ SSL_DEBUG_MSG( 2, ( "client state: %d", ssl->state ) );
+
+ if( ( ret = ssl_flush_output( ssl ) ) != 0 )
+ break;
+
+ switch( ssl->state )
+ {
+ case SSL_HELLO_REQUEST:
+ ssl->state = SSL_CLIENT_HELLO;
+ break;
+
+ /*
+ * ==> ClientHello
+ */
+ case SSL_CLIENT_HELLO:
+ ret = ssl_write_client_hello( ssl );
+ break;
+
+ /*
+ * <== ServerHello
+ * Certificate
+ * ( ServerKeyExchange )
+ * ( CertificateRequest )
+ * ServerHelloDone
+ */
+ case SSL_SERVER_HELLO:
+ ret = ssl_parse_server_hello( ssl );
+ break;
+
+ case SSL_SERVER_CERTIFICATE:
+ ret = ssl_parse_certificate( ssl );
+ break;
+
+ case SSL_SERVER_KEY_EXCHANGE:
+ ret = ssl_parse_server_key_exchange( ssl );
+ break;
+
+ case SSL_CERTIFICATE_REQUEST:
+ ret = ssl_parse_certificate_request( ssl );
+ break;
+
+ case SSL_SERVER_HELLO_DONE:
+ ret = ssl_parse_server_hello_done( ssl );
+ break;
+
+ /*
+ * ==> ( Certificate/Alert )
+ * ClientKeyExchange
+ * ( CertificateVerify )
+ * ChangeCipherSpec
+ * Finished
+ */
+ case SSL_CLIENT_CERTIFICATE:
+ ret = ssl_write_certificate( ssl );
+ break;
+
+ case SSL_CLIENT_KEY_EXCHANGE:
+ ret = ssl_write_client_key_exchange( ssl );
+ break;
+
+ case SSL_CERTIFICATE_VERIFY:
+ ret = ssl_write_certificate_verify( ssl );
+ break;
+
+ case SSL_CLIENT_CHANGE_CIPHER_SPEC:
+ ret = ssl_write_change_cipher_spec( ssl );
+ break;
+
+ case SSL_CLIENT_FINISHED:
+ ret = ssl_write_finished( ssl );
+ break;
+
+ /*
+ * <== ChangeCipherSpec
+ * Finished
+ */
+ case SSL_SERVER_CHANGE_CIPHER_SPEC:
+ ret = ssl_parse_change_cipher_spec( ssl );
+ break;
+
+ case SSL_SERVER_FINISHED:
+ ret = ssl_parse_finished( ssl );
+ break;
+
+ case SSL_FLUSH_BUFFERS:
+ SSL_DEBUG_MSG( 2, ( "handshake: done" ) );
+ ssl->state = SSL_HANDSHAKE_OVER;
+ break;
+
+ default:
+ SSL_DEBUG_MSG( 1, ( "invalid state %d", ssl->state ) );
+ return( POLARSSL_ERR_SSL_BAD_INPUT_DATA );
+ }
+
+ if( ret != 0 )
+ break;
+ }
+
+ SSL_DEBUG_MSG( 2, ( "<= handshake client" ) );
+
+ return( ret );
+}
+
+#endif
--- /dev/null
+/*
+ * SSLv3/TLSv1 server-side functions
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "polarssl/config.h"
+
+#if defined(POLARSSL_SSL_SRV_C)
+
+#include "polarssl/debug.h"
+#include "polarssl/ssl.h"
+
+#if defined(POLARSSL_PKCS11_C)
+#include "polarssl/pkcs11.h"
+#endif /* defined(POLARSSL_PKCS11_C) */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <time.h>
+
+static int ssl_parse_client_hello( ssl_context *ssl )
+{
+ int ret;
+ unsigned int i, j;
+ size_t n;
+ unsigned int ciph_len, sess_len;
+ unsigned int chal_len, comp_len;
+ unsigned char *buf, *p;
+
+ SSL_DEBUG_MSG( 2, ( "=> parse client hello" ) );
+
+ if( ( ret = ssl_fetch_input( ssl, 5 ) ) != 0 )
+ {
+ SSL_DEBUG_RET( 1, "ssl_fetch_input", ret );
+ return( ret );
+ }
+
+ buf = ssl->in_hdr;
+
+ if( ( buf[0] & 0x80 ) != 0 )
+ {
+ SSL_DEBUG_BUF( 4, "record header", buf, 5 );
+
+ SSL_DEBUG_MSG( 3, ( "client hello v2, message type: %d",
+ buf[2] ) );
+ SSL_DEBUG_MSG( 3, ( "client hello v2, message len.: %d",
+ ( ( buf[0] & 0x7F ) << 8 ) | buf[1] ) );
+ SSL_DEBUG_MSG( 3, ( "client hello v2, max. version: [%d:%d]",
+ buf[3], buf[4] ) );
+
+ /*
+ * SSLv2 Client Hello
+ *
+ * Record layer:
+ * 0 . 1 message length
+ *
+ * SSL layer:
+ * 2 . 2 message type
+ * 3 . 4 protocol version
+ */
+ if( buf[2] != SSL_HS_CLIENT_HELLO ||
+ buf[3] != SSL_MAJOR_VERSION_3 )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
+ return( POLARSSL_ERR_SSL_BAD_HS_CLIENT_HELLO );
+ }
+
+ n = ( ( buf[0] << 8 ) | buf[1] ) & 0x7FFF;
+
+ if( n < 17 || n > 512 )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
+ return( POLARSSL_ERR_SSL_BAD_HS_CLIENT_HELLO );
+ }
+
+ ssl->max_major_ver = buf[3];
+ ssl->max_minor_ver = buf[4];
+
+ ssl->major_ver = SSL_MAJOR_VERSION_3;
+ ssl->minor_ver = ( buf[4] <= SSL_MINOR_VERSION_2 )
+ ? buf[4] : SSL_MINOR_VERSION_2;
+
+ if( ( ret = ssl_fetch_input( ssl, 2 + n ) ) != 0 )
+ {
+ SSL_DEBUG_RET( 1, "ssl_fetch_input", ret );
+ return( ret );
+ }
+
+ md5_update( &ssl->fin_md5 , buf + 2, n );
+ sha1_update( &ssl->fin_sha1, buf + 2, n );
+
+ buf = ssl->in_msg;
+ n = ssl->in_left - 5;
+
+ /*
+ * 0 . 1 ciphersuitelist length
+ * 2 . 3 session id length
+ * 4 . 5 challenge length
+ * 6 . .. ciphersuitelist
+ * .. . .. session id
+ * .. . .. challenge
+ */
+ SSL_DEBUG_BUF( 4, "record contents", buf, n );
+
+ ciph_len = ( buf[0] << 8 ) | buf[1];
+ sess_len = ( buf[2] << 8 ) | buf[3];
+ chal_len = ( buf[4] << 8 ) | buf[5];
+
+ SSL_DEBUG_MSG( 3, ( "ciph_len: %d, sess_len: %d, chal_len: %d",
+ ciph_len, sess_len, chal_len ) );
+
+ /*
+ * Make sure each parameter length is valid
+ */
+ if( ciph_len < 3 || ( ciph_len % 3 ) != 0 )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
+ return( POLARSSL_ERR_SSL_BAD_HS_CLIENT_HELLO );
+ }
+
+ if( sess_len > 32 )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
+ return( POLARSSL_ERR_SSL_BAD_HS_CLIENT_HELLO );
+ }
+
+ if( chal_len < 8 || chal_len > 32 )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
+ return( POLARSSL_ERR_SSL_BAD_HS_CLIENT_HELLO );
+ }
+
+ if( n != 6 + ciph_len + sess_len + chal_len )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
+ return( POLARSSL_ERR_SSL_BAD_HS_CLIENT_HELLO );
+ }
+
+ SSL_DEBUG_BUF( 3, "client hello, ciphersuitelist",
+ buf + 6, ciph_len );
+ SSL_DEBUG_BUF( 3, "client hello, session id",
+ buf + 6 + ciph_len, sess_len );
+ SSL_DEBUG_BUF( 3, "client hello, challenge",
+ buf + 6 + ciph_len + sess_len, chal_len );
+
+ p = buf + 6 + ciph_len;
+ ssl->session->length = sess_len;
+ memset( ssl->session->id, 0, sizeof( ssl->session->id ) );
+ memcpy( ssl->session->id, p, ssl->session->length );
+
+ p += sess_len;
+ memset( ssl->randbytes, 0, 64 );
+ memcpy( ssl->randbytes + 32 - chal_len, p, chal_len );
+
+ for( i = 0; ssl->ciphersuites[i] != 0; i++ )
+ {
+ for( j = 0, p = buf + 6; j < ciph_len; j += 3, p += 3 )
+ {
+ if( p[0] == 0 &&
+ p[1] == 0 &&
+ p[2] == ssl->ciphersuites[i] )
+ goto have_ciphersuite;
+ }
+ }
+ }
+ else
+ {
+ SSL_DEBUG_BUF( 4, "record header", buf, 5 );
+
+ SSL_DEBUG_MSG( 3, ( "client hello v3, message type: %d",
+ buf[0] ) );
+ SSL_DEBUG_MSG( 3, ( "client hello v3, message len.: %d",
+ ( buf[3] << 8 ) | buf[4] ) );
+ SSL_DEBUG_MSG( 3, ( "client hello v3, protocol ver: [%d:%d]",
+ buf[1], buf[2] ) );
+
+ /*
+ * SSLv3 Client Hello
+ *
+ * Record layer:
+ * 0 . 0 message type
+ * 1 . 2 protocol version
+ * 3 . 4 message length
+ */
+ if( buf[0] != SSL_MSG_HANDSHAKE ||
+ buf[1] != SSL_MAJOR_VERSION_3 )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
+ return( POLARSSL_ERR_SSL_BAD_HS_CLIENT_HELLO );
+ }
+
+ n = ( buf[3] << 8 ) | buf[4];
+
+ if( n < 45 || n > 512 )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
+ return( POLARSSL_ERR_SSL_BAD_HS_CLIENT_HELLO );
+ }
+
+ if( ( ret = ssl_fetch_input( ssl, 5 + n ) ) != 0 )
+ {
+ SSL_DEBUG_RET( 1, "ssl_fetch_input", ret );
+ return( ret );
+ }
+
+ buf = ssl->in_msg;
+ n = ssl->in_left - 5;
+
+ md5_update( &ssl->fin_md5 , buf, n );
+ sha1_update( &ssl->fin_sha1, buf, n );
+
+ /*
+ * SSL layer:
+ * 0 . 0 handshake type
+ * 1 . 3 handshake length
+ * 4 . 5 protocol version
+ * 6 . 9 UNIX time()
+ * 10 . 37 random bytes
+ * 38 . 38 session id length
+ * 39 . 38+x session id
+ * 39+x . 40+x ciphersuitelist length
+ * 41+x . .. ciphersuitelist
+ * .. . .. compression alg.
+ * .. . .. extensions
+ */
+ SSL_DEBUG_BUF( 4, "record contents", buf, n );
+
+ SSL_DEBUG_MSG( 3, ( "client hello v3, handshake type: %d",
+ buf[0] ) );
+ SSL_DEBUG_MSG( 3, ( "client hello v3, handshake len.: %d",
+ ( buf[1] << 16 ) | ( buf[2] << 8 ) | buf[3] ) );
+ SSL_DEBUG_MSG( 3, ( "client hello v3, max. version: [%d:%d]",
+ buf[4], buf[5] ) );
+
+ /*
+ * Check the handshake type and protocol version
+ */
+ if( buf[0] != SSL_HS_CLIENT_HELLO ||
+ buf[4] != SSL_MAJOR_VERSION_3 )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
+ return( POLARSSL_ERR_SSL_BAD_HS_CLIENT_HELLO );
+ }
+
+ ssl->major_ver = SSL_MAJOR_VERSION_3;
+ ssl->minor_ver = ( buf[5] <= SSL_MINOR_VERSION_2 )
+ ? buf[5] : SSL_MINOR_VERSION_2;
+
+ ssl->max_major_ver = buf[4];
+ ssl->max_minor_ver = buf[5];
+
+ memcpy( ssl->randbytes, buf + 6, 32 );
+
+ /*
+ * Check the handshake message length
+ */
+ if( buf[1] != 0 || n != (unsigned int) 4 + ( ( buf[2] << 8 ) | buf[3] ) )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
+ return( POLARSSL_ERR_SSL_BAD_HS_CLIENT_HELLO );
+ }
+
+ /*
+ * Check the session length
+ */
+ sess_len = buf[38];
+
+ if( sess_len > 32 )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
+ return( POLARSSL_ERR_SSL_BAD_HS_CLIENT_HELLO );
+ }
+
+ ssl->session->length = sess_len;
+ memset( ssl->session->id, 0, sizeof( ssl->session->id ) );
+ memcpy( ssl->session->id, buf + 39 , ssl->session->length );
+
+ /*
+ * Check the ciphersuitelist length
+ */
+ ciph_len = ( buf[39 + sess_len] << 8 )
+ | ( buf[40 + sess_len] );
+
+ if( ciph_len < 2 || ciph_len > 256 || ( ciph_len % 2 ) != 0 )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
+ return( POLARSSL_ERR_SSL_BAD_HS_CLIENT_HELLO );
+ }
+
+ /*
+ * Check the compression algorithms length
+ */
+ comp_len = buf[41 + sess_len + ciph_len];
+
+ if( comp_len < 1 || comp_len > 16 )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
+ return( POLARSSL_ERR_SSL_BAD_HS_CLIENT_HELLO );
+ }
+
+ SSL_DEBUG_BUF( 3, "client hello, random bytes",
+ buf + 6, 32 );
+ SSL_DEBUG_BUF( 3, "client hello, session id",
+ buf + 38, sess_len );
+ SSL_DEBUG_BUF( 3, "client hello, ciphersuitelist",
+ buf + 41 + sess_len, ciph_len );
+ SSL_DEBUG_BUF( 3, "client hello, compression",
+ buf + 42 + sess_len + ciph_len, comp_len );
+
+ /*
+ * Search for a matching ciphersuite
+ */
+ for( i = 0; ssl->ciphersuites[i] != 0; i++ )
+ {
+ for( j = 0, p = buf + 41 + sess_len; j < ciph_len;
+ j += 2, p += 2 )
+ {
+ if( p[0] == 0 && p[1] == ssl->ciphersuites[i] )
+ goto have_ciphersuite;
+ }
+ }
+ }
+
+ SSL_DEBUG_MSG( 1, ( "got no ciphersuites in common" ) );
+
+ return( POLARSSL_ERR_SSL_NO_CIPHER_CHOSEN );
+
+have_ciphersuite:
+
+ ssl->session->ciphersuite = ssl->ciphersuites[i];
+ ssl->in_left = 0;
+ ssl->state++;
+
+ SSL_DEBUG_MSG( 2, ( "<= parse client hello" ) );
+
+ return( 0 );
+}
+
+static int ssl_write_server_hello( ssl_context *ssl )
+{
+ time_t t;
+ int ret, n;
+ unsigned char *buf, *p;
+
+ SSL_DEBUG_MSG( 2, ( "=> write server hello" ) );
+
+ /*
+ * 0 . 0 handshake type
+ * 1 . 3 handshake length
+ * 4 . 5 protocol version
+ * 6 . 9 UNIX time()
+ * 10 . 37 random bytes
+ */
+ buf = ssl->out_msg;
+ p = buf + 4;
+
+ *p++ = (unsigned char) ssl->major_ver;
+ *p++ = (unsigned char) ssl->minor_ver;
+
+ SSL_DEBUG_MSG( 3, ( "server hello, chosen version: [%d:%d]",
+ buf[4], buf[5] ) );
+
+ t = time( NULL );
+ *p++ = (unsigned char)( t >> 24 );
+ *p++ = (unsigned char)( t >> 16 );
+ *p++ = (unsigned char)( t >> 8 );
+ *p++ = (unsigned char)( t );
+
+ SSL_DEBUG_MSG( 3, ( "server hello, current time: %lu", t ) );
+
+ if( ( ret = ssl->f_rng( ssl->p_rng, p, 28 ) ) != 0 )
+ return( ret );
+
+ p += 28;
+
+ memcpy( ssl->randbytes + 32, buf + 6, 32 );
+
+ SSL_DEBUG_BUF( 3, "server hello, random bytes", buf + 6, 32 );
+
+ /*
+ * 38 . 38 session id length
+ * 39 . 38+n session id
+ * 39+n . 40+n chosen ciphersuite
+ * 41+n . 41+n chosen compression alg.
+ */
+ ssl->session->length = n = 32;
+ *p++ = (unsigned char) ssl->session->length;
+
+ if( ssl->s_get == NULL ||
+ ssl->s_get( ssl ) != 0 )
+ {
+ /*
+ * Not found, create a new session id
+ */
+ ssl->resume = 0;
+ ssl->state++;
+
+ if( ssl->session == NULL )
+ {
+ SSL_DEBUG_MSG( 1, ( "No session struct set" ) );
+ return( POLARSSL_ERR_SSL_BAD_INPUT_DATA );
+ }
+
+ if( ( ret = ssl->f_rng( ssl->p_rng, ssl->session->id, n ) ) != 0 )
+ return( ret );
+ }
+ else
+ {
+ /*
+ * Found a matching session, resume it
+ */
+ ssl->resume = 1;
+ ssl->state = SSL_SERVER_CHANGE_CIPHER_SPEC;
+
+ if( ( ret = ssl_derive_keys( ssl ) ) != 0 )
+ {
+ SSL_DEBUG_RET( 1, "ssl_derive_keys", ret );
+ return( ret );
+ }
+ }
+
+ memcpy( p, ssl->session->id, ssl->session->length );
+ p += ssl->session->length;
+
+ SSL_DEBUG_MSG( 3, ( "server hello, session id len.: %d", n ) );
+ SSL_DEBUG_BUF( 3, "server hello, session id", buf + 39, n );
+ SSL_DEBUG_MSG( 3, ( "%s session has been resumed",
+ ssl->resume ? "a" : "no" ) );
+
+ *p++ = (unsigned char)( ssl->session->ciphersuite >> 8 );
+ *p++ = (unsigned char)( ssl->session->ciphersuite );
+ *p++ = SSL_COMPRESS_NULL;
+
+ SSL_DEBUG_MSG( 3, ( "server hello, chosen ciphersuite: %d",
+ ssl->session->ciphersuite ) );
+ SSL_DEBUG_MSG( 3, ( "server hello, compress alg.: %d", 0 ) );
+
+ ssl->out_msglen = p - buf;
+ ssl->out_msgtype = SSL_MSG_HANDSHAKE;
+ ssl->out_msg[0] = SSL_HS_SERVER_HELLO;
+
+ ret = ssl_write_record( ssl );
+
+ SSL_DEBUG_MSG( 2, ( "<= write server hello" ) );
+
+ return( ret );
+}
+
+static int ssl_write_certificate_request( ssl_context *ssl )
+{
+ int ret;
+ size_t n;
+ unsigned char *buf, *p;
+ const x509_cert *crt;
+
+ SSL_DEBUG_MSG( 2, ( "=> write certificate request" ) );
+
+ ssl->state++;
+
+ if( ssl->authmode == SSL_VERIFY_NONE )
+ {
+ SSL_DEBUG_MSG( 2, ( "<= skip write certificate request" ) );
+ return( 0 );
+ }
+
+ /*
+ * 0 . 0 handshake type
+ * 1 . 3 handshake length
+ * 4 . 4 cert type count
+ * 5 .. n-1 cert types
+ * n .. n+1 length of all DNs
+ * n+2 .. n+3 length of DN 1
+ * n+4 .. ... Distinguished Name #1
+ * ... .. ... length of DN 2, etc.
+ */
+ buf = ssl->out_msg;
+ p = buf + 4;
+
+ /*
+ * At the moment, only RSA certificates are supported
+ */
+ *p++ = 1;
+ *p++ = 1;
+
+ p += 2;
+ crt = ssl->ca_chain;
+
+ while( crt != NULL )
+ {
+ if( p - buf > 4096 )
+ break;
+
+ n = crt->subject_raw.len;
+ *p++ = (unsigned char)( n >> 8 );
+ *p++ = (unsigned char)( n );
+ memcpy( p, crt->subject_raw.p, n );
+
+ SSL_DEBUG_BUF( 3, "requested DN", p, n );
+ p += n; crt = crt->next;
+ }
+
+ ssl->out_msglen = n = p - buf;
+ ssl->out_msgtype = SSL_MSG_HANDSHAKE;
+ ssl->out_msg[0] = SSL_HS_CERTIFICATE_REQUEST;
+ ssl->out_msg[6] = (unsigned char)( ( n - 8 ) >> 8 );
+ ssl->out_msg[7] = (unsigned char)( ( n - 8 ) );
+
+ ret = ssl_write_record( ssl );
+
+ SSL_DEBUG_MSG( 2, ( "<= write certificate request" ) );
+
+ return( ret );
+}
+
+static int ssl_write_server_key_exchange( ssl_context *ssl )
+{
+#if defined(POLARSSL_DHM_C)
+ int ret;
+ size_t n, rsa_key_len = 0;
+ unsigned char hash[36];
+ md5_context md5;
+ sha1_context sha1;
+#endif
+
+ SSL_DEBUG_MSG( 2, ( "=> write server key exchange" ) );
+
+ if( ssl->session->ciphersuite != SSL_EDH_RSA_DES_168_SHA &&
+ ssl->session->ciphersuite != SSL_EDH_RSA_AES_128_SHA &&
+ ssl->session->ciphersuite != SSL_EDH_RSA_AES_256_SHA &&
+ ssl->session->ciphersuite != SSL_EDH_RSA_CAMELLIA_128_SHA &&
+ ssl->session->ciphersuite != SSL_EDH_RSA_CAMELLIA_256_SHA)
+ {
+ SSL_DEBUG_MSG( 2, ( "<= skip write server key exchange" ) );
+ ssl->state++;
+ return( 0 );
+ }
+
+#if !defined(POLARSSL_DHM_C)
+ SSL_DEBUG_MSG( 1, ( "support for dhm is not available" ) );
+ return( POLARSSL_ERR_SSL_FEATURE_UNAVAILABLE );
+#else
+
+ if( ssl->rsa_key == NULL )
+ {
+#if defined(POLARSSL_PKCS11_C)
+ if( ssl->pkcs11_key == NULL )
+ {
+#endif /* defined(POLARSSL_PKCS11_C) */
+ SSL_DEBUG_MSG( 1, ( "got no private key" ) );
+ return( POLARSSL_ERR_SSL_PRIVATE_KEY_REQUIRED );
+#if defined(POLARSSL_PKCS11_C)
+ }
+#endif /* defined(POLARSSL_PKCS11_C) */
+ }
+
+ /*
+ * Ephemeral DH parameters:
+ *
+ * struct {
+ * opaque dh_p<1..2^16-1>;
+ * opaque dh_g<1..2^16-1>;
+ * opaque dh_Ys<1..2^16-1>;
+ * } ServerDHParams;
+ */
+ if( ( ret = dhm_make_params( &ssl->dhm_ctx, 256, ssl->out_msg + 4,
+ &n, ssl->f_rng, ssl->p_rng ) ) != 0 )
+ {
+ SSL_DEBUG_RET( 1, "dhm_make_params", ret );
+ return( ret );
+ }
+
+ SSL_DEBUG_MPI( 3, "DHM: X ", &ssl->dhm_ctx.X );
+ SSL_DEBUG_MPI( 3, "DHM: P ", &ssl->dhm_ctx.P );
+ SSL_DEBUG_MPI( 3, "DHM: G ", &ssl->dhm_ctx.G );
+ SSL_DEBUG_MPI( 3, "DHM: GX", &ssl->dhm_ctx.GX );
+
+ /*
+ * digitally-signed struct {
+ * opaque md5_hash[16];
+ * opaque sha_hash[20];
+ * };
+ *
+ * md5_hash
+ * MD5(ClientHello.random + ServerHello.random
+ * + ServerParams);
+ * sha_hash
+ * SHA(ClientHello.random + ServerHello.random
+ * + ServerParams);
+ */
+ md5_starts( &md5 );
+ md5_update( &md5, ssl->randbytes, 64 );
+ md5_update( &md5, ssl->out_msg + 4, n );
+ md5_finish( &md5, hash );
+
+ sha1_starts( &sha1 );
+ sha1_update( &sha1, ssl->randbytes, 64 );
+ sha1_update( &sha1, ssl->out_msg + 4, n );
+ sha1_finish( &sha1, hash + 16 );
+
+ SSL_DEBUG_BUF( 3, "parameters hash", hash, 36 );
+
+ if ( ssl->rsa_key )
+ rsa_key_len = ssl->rsa_key->len;
+#if defined(POLARSSL_PKCS11_C)
+ else
+ rsa_key_len = ssl->pkcs11_key->len;
+#endif /* defined(POLARSSL_PKCS11_C) */
+
+ ssl->out_msg[4 + n] = (unsigned char)( rsa_key_len >> 8 );
+ ssl->out_msg[5 + n] = (unsigned char)( rsa_key_len );
+
+ if ( ssl->rsa_key )
+ {
+ ret = rsa_pkcs1_sign( ssl->rsa_key, ssl->f_rng, ssl->p_rng,
+ RSA_PRIVATE,
+ SIG_RSA_RAW, 36, hash, ssl->out_msg + 6 + n );
+ }
+#if defined(POLARSSL_PKCS11_C)
+ else {
+ ret = pkcs11_sign( ssl->pkcs11_key, RSA_PRIVATE,
+ SIG_RSA_RAW, 36, hash, ssl->out_msg + 6 + n );
+ }
+#endif /* defined(POLARSSL_PKCS11_C) */
+
+ if( ret != 0 )
+ {
+ SSL_DEBUG_RET( 1, "pkcs1_sign", ret );
+ return( ret );
+ }
+
+ SSL_DEBUG_BUF( 3, "my RSA sig", ssl->out_msg + 6 + n, rsa_key_len );
+
+ ssl->out_msglen = 6 + n + rsa_key_len;
+ ssl->out_msgtype = SSL_MSG_HANDSHAKE;
+ ssl->out_msg[0] = SSL_HS_SERVER_KEY_EXCHANGE;
+
+ ssl->state++;
+
+ if( ( ret = ssl_write_record( ssl ) ) != 0 )
+ {
+ SSL_DEBUG_RET( 1, "ssl_write_record", ret );
+ return( ret );
+ }
+
+ SSL_DEBUG_MSG( 2, ( "<= write server key exchange" ) );
+
+ return( 0 );
+#endif
+}
+
+static int ssl_write_server_hello_done( ssl_context *ssl )
+{
+ int ret;
+
+ SSL_DEBUG_MSG( 2, ( "=> write server hello done" ) );
+
+ ssl->out_msglen = 4;
+ ssl->out_msgtype = SSL_MSG_HANDSHAKE;
+ ssl->out_msg[0] = SSL_HS_SERVER_HELLO_DONE;
+
+ ssl->state++;
+
+ if( ( ret = ssl_write_record( ssl ) ) != 0 )
+ {
+ SSL_DEBUG_RET( 1, "ssl_write_record", ret );
+ return( ret );
+ }
+
+ SSL_DEBUG_MSG( 2, ( "<= write server hello done" ) );
+
+ return( 0 );
+}
+
+static int ssl_parse_client_key_exchange( ssl_context *ssl )
+{
+ int ret;
+ size_t i, n = 0;
+
+ SSL_DEBUG_MSG( 2, ( "=> parse client key exchange" ) );
+
+ if( ( ret = ssl_read_record( ssl ) ) != 0 )
+ {
+ SSL_DEBUG_RET( 1, "ssl_read_record", ret );
+ return( ret );
+ }
+
+ if( ssl->in_msgtype != SSL_MSG_HANDSHAKE )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) );
+ return( POLARSSL_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE );
+ }
+
+ if( ssl->in_msg[0] != SSL_HS_CLIENT_KEY_EXCHANGE )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) );
+ return( POLARSSL_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE );
+ }
+
+ if( ssl->session->ciphersuite == SSL_EDH_RSA_DES_168_SHA ||
+ ssl->session->ciphersuite == SSL_EDH_RSA_AES_128_SHA ||
+ ssl->session->ciphersuite == SSL_EDH_RSA_AES_256_SHA ||
+ ssl->session->ciphersuite == SSL_EDH_RSA_CAMELLIA_128_SHA ||
+ ssl->session->ciphersuite == SSL_EDH_RSA_CAMELLIA_256_SHA)
+ {
+#if !defined(POLARSSL_DHM_C)
+ SSL_DEBUG_MSG( 1, ( "support for dhm is not available" ) );
+ return( POLARSSL_ERR_SSL_FEATURE_UNAVAILABLE );
+#else
+ /*
+ * Receive G^Y mod P, premaster = (G^Y)^X mod P
+ */
+ n = ( ssl->in_msg[4] << 8 ) | ssl->in_msg[5];
+
+ if( n < 1 || n > ssl->dhm_ctx.len ||
+ n + 6 != ssl->in_hslen )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) );
+ return( POLARSSL_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE );
+ }
+
+ if( ( ret = dhm_read_public( &ssl->dhm_ctx,
+ ssl->in_msg + 6, n ) ) != 0 )
+ {
+ SSL_DEBUG_RET( 1, "dhm_read_public", ret );
+ return( POLARSSL_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_DHM_RP );
+ }
+
+ SSL_DEBUG_MPI( 3, "DHM: GY", &ssl->dhm_ctx.GY );
+
+ ssl->pmslen = ssl->dhm_ctx.len;
+
+ if( ( ret = dhm_calc_secret( &ssl->dhm_ctx,
+ ssl->premaster, &ssl->pmslen ) ) != 0 )
+ {
+ SSL_DEBUG_RET( 1, "dhm_calc_secret", ret );
+ return( POLARSSL_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_DHM_CS );
+ }
+
+ SSL_DEBUG_MPI( 3, "DHM: K ", &ssl->dhm_ctx.K );
+#endif
+ }
+ else
+ {
+ if( ssl->rsa_key == NULL )
+ {
+#if defined(POLARSSL_PKCS11_C)
+ if( ssl->pkcs11_key == NULL )
+ {
+#endif
+ SSL_DEBUG_MSG( 1, ( "got no private key" ) );
+ return( POLARSSL_ERR_SSL_PRIVATE_KEY_REQUIRED );
+#if defined(POLARSSL_PKCS11_C)
+ }
+#endif
+ }
+
+ /*
+ * Decrypt the premaster using own private RSA key
+ */
+ i = 4;
+ if( ssl->rsa_key )
+ n = ssl->rsa_key->len;
+#if defined(POLARSSL_PKCS11_C)
+ else
+ n = ssl->pkcs11_key->len;
+#endif
+ ssl->pmslen = 48;
+
+ if( ssl->minor_ver != SSL_MINOR_VERSION_0 )
+ {
+ i += 2;
+ if( ssl->in_msg[4] != ( ( n >> 8 ) & 0xFF ) ||
+ ssl->in_msg[5] != ( ( n ) & 0xFF ) )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) );
+ return( POLARSSL_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE );
+ }
+ }
+
+ if( ssl->in_hslen != i + n )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) );
+ return( POLARSSL_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE );
+ }
+
+ if( ssl->rsa_key ) {
+ ret = rsa_pkcs1_decrypt( ssl->rsa_key, RSA_PRIVATE, &ssl->pmslen,
+ ssl->in_msg + i, ssl->premaster,
+ sizeof(ssl->premaster) );
+ }
+#if defined(POLARSSL_PKCS11_C)
+ else {
+ ret = pkcs11_decrypt( ssl->pkcs11_key, RSA_PRIVATE, &ssl->pmslen,
+ ssl->in_msg + i, ssl->premaster,
+ sizeof(ssl->premaster) );
+ }
+#endif /* defined(POLARSSL_PKCS11_C) */
+
+ if( ret != 0 || ssl->pmslen != 48 ||
+ ssl->premaster[0] != ssl->max_major_ver ||
+ ssl->premaster[1] != ssl->max_minor_ver )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) );
+
+ /*
+ * Protection against Bleichenbacher's attack:
+ * invalid PKCS#1 v1.5 padding must not cause
+ * the connection to end immediately; instead,
+ * send a bad_record_mac later in the handshake.
+ */
+ ssl->pmslen = 48;
+
+ ret = ssl->f_rng( ssl->p_rng, ssl->premaster, ssl->pmslen );
+ if( ret != 0 )
+ return( ret );
+ }
+ }
+
+ if( ( ret = ssl_derive_keys( ssl ) ) != 0 )
+ {
+ SSL_DEBUG_RET( 1, "ssl_derive_keys", ret );
+ return( ret );
+ }
+
+ if( ssl->s_set != NULL )
+ ssl->s_set( ssl );
+
+ ssl->state++;
+
+ SSL_DEBUG_MSG( 2, ( "<= parse client key exchange" ) );
+
+ return( 0 );
+}
+
+static int ssl_parse_certificate_verify( ssl_context *ssl )
+{
+ int ret;
+ size_t n1, n2;
+ unsigned char hash[36];
+
+ SSL_DEBUG_MSG( 2, ( "=> parse certificate verify" ) );
+
+ if( ssl->peer_cert == NULL )
+ {
+ SSL_DEBUG_MSG( 2, ( "<= skip parse certificate verify" ) );
+ ssl->state++;
+ return( 0 );
+ }
+
+ ssl_calc_verify( ssl, hash );
+
+ if( ( ret = ssl_read_record( ssl ) ) != 0 )
+ {
+ SSL_DEBUG_RET( 1, "ssl_read_record", ret );
+ return( ret );
+ }
+
+ ssl->state++;
+
+ if( ssl->in_msgtype != SSL_MSG_HANDSHAKE )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad certificate verify message" ) );
+ return( POLARSSL_ERR_SSL_BAD_HS_CERTIFICATE_VERIFY );
+ }
+
+ if( ssl->in_msg[0] != SSL_HS_CERTIFICATE_VERIFY )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad certificate verify message" ) );
+ return( POLARSSL_ERR_SSL_BAD_HS_CERTIFICATE_VERIFY );
+ }
+
+ n1 = ssl->peer_cert->rsa.len;
+ n2 = ( ssl->in_msg[4] << 8 ) | ssl->in_msg[5];
+
+ if( n1 + 6 != ssl->in_hslen || n1 != n2 )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad certificate verify message" ) );
+ return( POLARSSL_ERR_SSL_BAD_HS_CERTIFICATE_VERIFY );
+ }
+
+ ret = rsa_pkcs1_verify( &ssl->peer_cert->rsa, RSA_PUBLIC,
+ SIG_RSA_RAW, 36, hash, ssl->in_msg + 6 );
+ if( ret != 0 )
+ {
+ SSL_DEBUG_RET( 1, "rsa_pkcs1_verify", ret );
+ return( ret );
+ }
+
+ SSL_DEBUG_MSG( 2, ( "<= parse certificate verify" ) );
+
+ return( 0 );
+}
+
+/*
+ * SSL handshake -- server side
+ */
+int ssl_handshake_server( ssl_context *ssl )
+{
+ int ret = 0;
+
+ SSL_DEBUG_MSG( 2, ( "=> handshake server" ) );
+
+ while( ssl->state != SSL_HANDSHAKE_OVER )
+ {
+ SSL_DEBUG_MSG( 2, ( "server state: %d", ssl->state ) );
+
+ if( ( ret = ssl_flush_output( ssl ) ) != 0 )
+ break;
+
+ switch( ssl->state )
+ {
+ case SSL_HELLO_REQUEST:
+ ssl->state = SSL_CLIENT_HELLO;
+ break;
+
+ /*
+ * <== ClientHello
+ */
+ case SSL_CLIENT_HELLO:
+ ret = ssl_parse_client_hello( ssl );
+ break;
+
+ /*
+ * ==> ServerHello
+ * Certificate
+ * ( ServerKeyExchange )
+ * ( CertificateRequest )
+ * ServerHelloDone
+ */
+ case SSL_SERVER_HELLO:
+ ret = ssl_write_server_hello( ssl );
+ break;
+
+ case SSL_SERVER_CERTIFICATE:
+ ret = ssl_write_certificate( ssl );
+ break;
+
+ case SSL_SERVER_KEY_EXCHANGE:
+ ret = ssl_write_server_key_exchange( ssl );
+ break;
+
+ case SSL_CERTIFICATE_REQUEST:
+ ret = ssl_write_certificate_request( ssl );
+ break;
+
+ case SSL_SERVER_HELLO_DONE:
+ ret = ssl_write_server_hello_done( ssl );
+ break;
+
+ /*
+ * <== ( Certificate/Alert )
+ * ClientKeyExchange
+ * ( CertificateVerify )
+ * ChangeCipherSpec
+ * Finished
+ */
+ case SSL_CLIENT_CERTIFICATE:
+ ret = ssl_parse_certificate( ssl );
+ break;
+
+ case SSL_CLIENT_KEY_EXCHANGE:
+ ret = ssl_parse_client_key_exchange( ssl );
+ break;
+
+ case SSL_CERTIFICATE_VERIFY:
+ ret = ssl_parse_certificate_verify( ssl );
+ break;
+
+ case SSL_CLIENT_CHANGE_CIPHER_SPEC:
+ ret = ssl_parse_change_cipher_spec( ssl );
+ break;
+
+ case SSL_CLIENT_FINISHED:
+ ret = ssl_parse_finished( ssl );
+ break;
+
+ /*
+ * ==> ChangeCipherSpec
+ * Finished
+ */
+ case SSL_SERVER_CHANGE_CIPHER_SPEC:
+ ret = ssl_write_change_cipher_spec( ssl );
+ break;
+
+ case SSL_SERVER_FINISHED:
+ ret = ssl_write_finished( ssl );
+ break;
+
+ case SSL_FLUSH_BUFFERS:
+ SSL_DEBUG_MSG( 2, ( "handshake: done" ) );
+ ssl->state = SSL_HANDSHAKE_OVER;
+ break;
+
+ default:
+ SSL_DEBUG_MSG( 1, ( "invalid state %d", ssl->state ) );
+ return( POLARSSL_ERR_SSL_BAD_INPUT_DATA );
+ }
+
+ if( ret != 0 )
+ break;
+ }
+
+ SSL_DEBUG_MSG( 2, ( "<= handshake server" ) );
+
+ return( ret );
+}
+
+#endif
--- /dev/null
+/*
+ * SSLv3/TLSv1 shared functions
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+/*
+ * The SSL 3.0 specification was drafted by Netscape in 1996,
+ * and became an IETF standard in 1999.
+ *
+ * http://wp.netscape.com/eng/ssl3/
+ * http://www.ietf.org/rfc/rfc2246.txt
+ * http://www.ietf.org/rfc/rfc4346.txt
+ */
+
+#include "polarssl/config.h"
+
+#if defined(POLARSSL_SSL_TLS_C)
+
+#include "polarssl/aes.h"
+#include "polarssl/arc4.h"
+#include "polarssl/camellia.h"
+#include "polarssl/des.h"
+#include "polarssl/debug.h"
+#include "polarssl/ssl.h"
+
+#include <stdlib.h>
+#include <time.h>
+
+#if defined _MSC_VER && !defined strcasecmp
+#define strcasecmp _stricmp
+#endif
+
+/*
+ * Key material generation
+ */
+static int tls1_prf( unsigned char *secret, size_t slen, char *label,
+ unsigned char *random, size_t rlen,
+ unsigned char *dstbuf, size_t dlen )
+{
+ size_t nb, hs;
+ size_t i, j, k;
+ unsigned char *S1, *S2;
+ unsigned char tmp[128];
+ unsigned char h_i[20];
+
+ if( sizeof( tmp ) < 20 + strlen( label ) + rlen )
+ return( POLARSSL_ERR_SSL_BAD_INPUT_DATA );
+
+ hs = ( slen + 1 ) / 2;
+ S1 = secret;
+ S2 = secret + slen - hs;
+
+ nb = strlen( label );
+ memcpy( tmp + 20, label, nb );
+ memcpy( tmp + 20 + nb, random, rlen );
+ nb += rlen;
+
+ /*
+ * First compute P_md5(secret,label+random)[0..dlen]
+ */
+ md5_hmac( S1, hs, tmp + 20, nb, 4 + tmp );
+
+ for( i = 0; i < dlen; i += 16 )
+ {
+ md5_hmac( S1, hs, 4 + tmp, 16 + nb, h_i );
+ md5_hmac( S1, hs, 4 + tmp, 16, 4 + tmp );
+
+ k = ( i + 16 > dlen ) ? dlen % 16 : 16;
+
+ for( j = 0; j < k; j++ )
+ dstbuf[i + j] = h_i[j];
+ }
+
+ /*
+ * XOR out with P_sha1(secret,label+random)[0..dlen]
+ */
+ sha1_hmac( S2, hs, tmp + 20, nb, tmp );
+
+ for( i = 0; i < dlen; i += 20 )
+ {
+ sha1_hmac( S2, hs, tmp, 20 + nb, h_i );
+ sha1_hmac( S2, hs, tmp, 20, tmp );
+
+ k = ( i + 20 > dlen ) ? dlen % 20 : 20;
+
+ for( j = 0; j < k; j++ )
+ dstbuf[i + j] = (unsigned char)( dstbuf[i + j] ^ h_i[j] );
+ }
+
+ memset( tmp, 0, sizeof( tmp ) );
+ memset( h_i, 0, sizeof( h_i ) );
+
+ return( 0 );
+}
+
+int ssl_derive_keys( ssl_context *ssl )
+{
+ int i;
+ md5_context md5;
+ sha1_context sha1;
+ unsigned char tmp[64];
+ unsigned char padding[16];
+ unsigned char sha1sum[20];
+ unsigned char keyblk[256];
+ unsigned char *key1;
+ unsigned char *key2;
+
+ SSL_DEBUG_MSG( 2, ( "=> derive keys" ) );
+
+ /*
+ * SSLv3:
+ * master =
+ * MD5( premaster + SHA1( 'A' + premaster + randbytes ) ) +
+ * MD5( premaster + SHA1( 'BB' + premaster + randbytes ) ) +
+ * MD5( premaster + SHA1( 'CCC' + premaster + randbytes ) )
+ *
+ * TLSv1:
+ * master = PRF( premaster, "master secret", randbytes )[0..47]
+ */
+ if( ssl->resume == 0 )
+ {
+ size_t len = ssl->pmslen;
+
+ SSL_DEBUG_BUF( 3, "premaster secret", ssl->premaster, len );
+
+ if( ssl->minor_ver == SSL_MINOR_VERSION_0 )
+ {
+ for( i = 0; i < 3; i++ )
+ {
+ memset( padding, 'A' + i, 1 + i );
+
+ sha1_starts( &sha1 );
+ sha1_update( &sha1, padding, 1 + i );
+ sha1_update( &sha1, ssl->premaster, len );
+ sha1_update( &sha1, ssl->randbytes, 64 );
+ sha1_finish( &sha1, sha1sum );
+
+ md5_starts( &md5 );
+ md5_update( &md5, ssl->premaster, len );
+ md5_update( &md5, sha1sum, 20 );
+ md5_finish( &md5, ssl->session->master + i * 16 );
+ }
+ }
+ else
+ tls1_prf( ssl->premaster, len, "master secret",
+ ssl->randbytes, 64, ssl->session->master, 48 );
+
+ memset( ssl->premaster, 0, sizeof( ssl->premaster ) );
+ }
+ else
+ SSL_DEBUG_MSG( 3, ( "no premaster (session resumed)" ) );
+
+ /*
+ * Swap the client and server random values.
+ */
+ memcpy( tmp, ssl->randbytes, 64 );
+ memcpy( ssl->randbytes, tmp + 32, 32 );
+ memcpy( ssl->randbytes + 32, tmp, 32 );
+ memset( tmp, 0, sizeof( tmp ) );
+
+ /*
+ * SSLv3:
+ * key block =
+ * MD5( master + SHA1( 'A' + master + randbytes ) ) +
+ * MD5( master + SHA1( 'BB' + master + randbytes ) ) +
+ * MD5( master + SHA1( 'CCC' + master + randbytes ) ) +
+ * MD5( master + SHA1( 'DDDD' + master + randbytes ) ) +
+ * ...
+ *
+ * TLSv1:
+ * key block = PRF( master, "key expansion", randbytes )
+ */
+ if( ssl->minor_ver == SSL_MINOR_VERSION_0 )
+ {
+ for( i = 0; i < 16; i++ )
+ {
+ memset( padding, 'A' + i, 1 + i );
+
+ sha1_starts( &sha1 );
+ sha1_update( &sha1, padding, 1 + i );
+ sha1_update( &sha1, ssl->session->master, 48 );
+ sha1_update( &sha1, ssl->randbytes, 64 );
+ sha1_finish( &sha1, sha1sum );
+
+ md5_starts( &md5 );
+ md5_update( &md5, ssl->session->master, 48 );
+ md5_update( &md5, sha1sum, 20 );
+ md5_finish( &md5, keyblk + i * 16 );
+ }
+
+ memset( &md5, 0, sizeof( md5 ) );
+ memset( &sha1, 0, sizeof( sha1 ) );
+
+ memset( padding, 0, sizeof( padding ) );
+ memset( sha1sum, 0, sizeof( sha1sum ) );
+ }
+ else
+ tls1_prf( ssl->session->master, 48, "key expansion",
+ ssl->randbytes, 64, keyblk, 256 );
+
+ SSL_DEBUG_MSG( 3, ( "ciphersuite = %s", ssl_get_ciphersuite( ssl ) ) );
+ SSL_DEBUG_BUF( 3, "master secret", ssl->session->master, 48 );
+ SSL_DEBUG_BUF( 4, "random bytes", ssl->randbytes, 64 );
+ SSL_DEBUG_BUF( 4, "key block", keyblk, 256 );
+
+ memset( ssl->randbytes, 0, sizeof( ssl->randbytes ) );
+
+ /*
+ * Determine the appropriate key, IV and MAC length.
+ */
+ switch( ssl->session->ciphersuite )
+ {
+#if defined(POLARSSL_ARC4_C)
+ case SSL_RSA_RC4_128_MD5:
+ ssl->keylen = 16; ssl->minlen = 16;
+ ssl->ivlen = 0; ssl->maclen = 16;
+ break;
+
+ case SSL_RSA_RC4_128_SHA:
+ ssl->keylen = 16; ssl->minlen = 20;
+ ssl->ivlen = 0; ssl->maclen = 20;
+ break;
+#endif
+
+#if defined(POLARSSL_DES_C)
+ case SSL_RSA_DES_168_SHA:
+ case SSL_EDH_RSA_DES_168_SHA:
+ ssl->keylen = 24; ssl->minlen = 24;
+ ssl->ivlen = 8; ssl->maclen = 20;
+ break;
+#endif
+
+#if defined(POLARSSL_AES_C)
+ case SSL_RSA_AES_128_SHA:
+ case SSL_EDH_RSA_AES_128_SHA:
+ ssl->keylen = 16; ssl->minlen = 32;
+ ssl->ivlen = 16; ssl->maclen = 20;
+ break;
+
+ case SSL_RSA_AES_256_SHA:
+ case SSL_EDH_RSA_AES_256_SHA:
+ ssl->keylen = 32; ssl->minlen = 32;
+ ssl->ivlen = 16; ssl->maclen = 20;
+ break;
+#endif
+
+#if defined(POLARSSL_CAMELLIA_C)
+ case SSL_RSA_CAMELLIA_128_SHA:
+ case SSL_EDH_RSA_CAMELLIA_128_SHA:
+ ssl->keylen = 16; ssl->minlen = 32;
+ ssl->ivlen = 16; ssl->maclen = 20;
+ break;
+
+ case SSL_RSA_CAMELLIA_256_SHA:
+ case SSL_EDH_RSA_CAMELLIA_256_SHA:
+ ssl->keylen = 32; ssl->minlen = 32;
+ ssl->ivlen = 16; ssl->maclen = 20;
+ break;
+#endif
+
+ default:
+ SSL_DEBUG_MSG( 1, ( "ciphersuite %s is not available",
+ ssl_get_ciphersuite( ssl ) ) );
+ return( POLARSSL_ERR_SSL_FEATURE_UNAVAILABLE );
+ }
+
+ SSL_DEBUG_MSG( 3, ( "keylen: %d, minlen: %d, ivlen: %d, maclen: %d",
+ ssl->keylen, ssl->minlen, ssl->ivlen, ssl->maclen ) );
+
+ /*
+ * Finally setup the cipher contexts, IVs and MAC secrets.
+ */
+ if( ssl->endpoint == SSL_IS_CLIENT )
+ {
+ key1 = keyblk + ssl->maclen * 2;
+ key2 = keyblk + ssl->maclen * 2 + ssl->keylen;
+
+ memcpy( ssl->mac_enc, keyblk, ssl->maclen );
+ memcpy( ssl->mac_dec, keyblk + ssl->maclen, ssl->maclen );
+
+ /*
+ * This is not used in TLS v1.1.
+ */
+ memcpy( ssl->iv_enc, key2 + ssl->keylen, ssl->ivlen );
+ memcpy( ssl->iv_dec, key2 + ssl->keylen + ssl->ivlen,
+ ssl->ivlen );
+ }
+ else
+ {
+ key1 = keyblk + ssl->maclen * 2 + ssl->keylen;
+ key2 = keyblk + ssl->maclen * 2;
+
+ memcpy( ssl->mac_dec, keyblk, ssl->maclen );
+ memcpy( ssl->mac_enc, keyblk + ssl->maclen, ssl->maclen );
+
+ /*
+ * This is not used in TLS v1.1.
+ */
+ memcpy( ssl->iv_dec, key1 + ssl->keylen, ssl->ivlen );
+ memcpy( ssl->iv_enc, key1 + ssl->keylen + ssl->ivlen,
+ ssl->ivlen );
+ }
+
+ switch( ssl->session->ciphersuite )
+ {
+#if defined(POLARSSL_ARC4_C)
+ case SSL_RSA_RC4_128_MD5:
+ case SSL_RSA_RC4_128_SHA:
+ arc4_setup( (arc4_context *) ssl->ctx_enc, key1, ssl->keylen );
+ arc4_setup( (arc4_context *) ssl->ctx_dec, key2, ssl->keylen );
+ break;
+#endif
+
+#if defined(POLARSSL_DES_C)
+ case SSL_RSA_DES_168_SHA:
+ case SSL_EDH_RSA_DES_168_SHA:
+ des3_set3key_enc( (des3_context *) ssl->ctx_enc, key1 );
+ des3_set3key_dec( (des3_context *) ssl->ctx_dec, key2 );
+ break;
+#endif
+
+#if defined(POLARSSL_AES_C)
+ case SSL_RSA_AES_128_SHA:
+ case SSL_EDH_RSA_AES_128_SHA:
+ aes_setkey_enc( (aes_context *) ssl->ctx_enc, key1, 128 );
+ aes_setkey_dec( (aes_context *) ssl->ctx_dec, key2, 128 );
+ break;
+
+ case SSL_RSA_AES_256_SHA:
+ case SSL_EDH_RSA_AES_256_SHA:
+ aes_setkey_enc( (aes_context *) ssl->ctx_enc, key1, 256 );
+ aes_setkey_dec( (aes_context *) ssl->ctx_dec, key2, 256 );
+ break;
+#endif
+
+#if defined(POLARSSL_CAMELLIA_C)
+ case SSL_RSA_CAMELLIA_128_SHA:
+ case SSL_EDH_RSA_CAMELLIA_128_SHA:
+ camellia_setkey_enc( (camellia_context *) ssl->ctx_enc, key1, 128 );
+ camellia_setkey_dec( (camellia_context *) ssl->ctx_dec, key2, 128 );
+ break;
+
+ case SSL_RSA_CAMELLIA_256_SHA:
+ case SSL_EDH_RSA_CAMELLIA_256_SHA:
+ camellia_setkey_enc( (camellia_context *) ssl->ctx_enc, key1, 256 );
+ camellia_setkey_dec( (camellia_context *) ssl->ctx_dec, key2, 256 );
+ break;
+#endif
+
+ default:
+ return( POLARSSL_ERR_SSL_FEATURE_UNAVAILABLE );
+ }
+
+ memset( keyblk, 0, sizeof( keyblk ) );
+
+ SSL_DEBUG_MSG( 2, ( "<= derive keys" ) );
+
+ return( 0 );
+}
+
+void ssl_calc_verify( ssl_context *ssl, unsigned char hash[36] )
+{
+ md5_context md5;
+ sha1_context sha1;
+ unsigned char pad_1[48];
+ unsigned char pad_2[48];
+
+ SSL_DEBUG_MSG( 2, ( "=> calc verify" ) );
+
+ memcpy( &md5 , &ssl->fin_md5 , sizeof( md5_context ) );
+ memcpy( &sha1, &ssl->fin_sha1, sizeof( sha1_context ) );
+
+ if( ssl->minor_ver == SSL_MINOR_VERSION_0 )
+ {
+ memset( pad_1, 0x36, 48 );
+ memset( pad_2, 0x5C, 48 );
+
+ md5_update( &md5, ssl->session->master, 48 );
+ md5_update( &md5, pad_1, 48 );
+ md5_finish( &md5, hash );
+
+ md5_starts( &md5 );
+ md5_update( &md5, ssl->session->master, 48 );
+ md5_update( &md5, pad_2, 48 );
+ md5_update( &md5, hash, 16 );
+ md5_finish( &md5, hash );
+
+ sha1_update( &sha1, ssl->session->master, 48 );
+ sha1_update( &sha1, pad_1, 40 );
+ sha1_finish( &sha1, hash + 16 );
+
+ sha1_starts( &sha1 );
+ sha1_update( &sha1, ssl->session->master, 48 );
+ sha1_update( &sha1, pad_2, 40 );
+ sha1_update( &sha1, hash + 16, 20 );
+ sha1_finish( &sha1, hash + 16 );
+ }
+ else /* TLSv1 */
+ {
+ md5_finish( &md5, hash );
+ sha1_finish( &sha1, hash + 16 );
+ }
+
+ SSL_DEBUG_BUF( 3, "calculated verify result", hash, 36 );
+ SSL_DEBUG_MSG( 2, ( "<= calc verify" ) );
+
+ return;
+}
+
+/*
+ * SSLv3.0 MAC functions
+ */
+static void ssl_mac_md5( unsigned char *secret,
+ unsigned char *buf, size_t len,
+ unsigned char *ctr, int type )
+{
+ unsigned char header[11];
+ unsigned char padding[48];
+ md5_context md5;
+
+ memcpy( header, ctr, 8 );
+ header[ 8] = (unsigned char) type;
+ header[ 9] = (unsigned char)( len >> 8 );
+ header[10] = (unsigned char)( len );
+
+ memset( padding, 0x36, 48 );
+ md5_starts( &md5 );
+ md5_update( &md5, secret, 16 );
+ md5_update( &md5, padding, 48 );
+ md5_update( &md5, header, 11 );
+ md5_update( &md5, buf, len );
+ md5_finish( &md5, buf + len );
+
+ memset( padding, 0x5C, 48 );
+ md5_starts( &md5 );
+ md5_update( &md5, secret, 16 );
+ md5_update( &md5, padding, 48 );
+ md5_update( &md5, buf + len, 16 );
+ md5_finish( &md5, buf + len );
+}
+
+static void ssl_mac_sha1( unsigned char *secret,
+ unsigned char *buf, size_t len,
+ unsigned char *ctr, int type )
+{
+ unsigned char header[11];
+ unsigned char padding[40];
+ sha1_context sha1;
+
+ memcpy( header, ctr, 8 );
+ header[ 8] = (unsigned char) type;
+ header[ 9] = (unsigned char)( len >> 8 );
+ header[10] = (unsigned char)( len );
+
+ memset( padding, 0x36, 40 );
+ sha1_starts( &sha1 );
+ sha1_update( &sha1, secret, 20 );
+ sha1_update( &sha1, padding, 40 );
+ sha1_update( &sha1, header, 11 );
+ sha1_update( &sha1, buf, len );
+ sha1_finish( &sha1, buf + len );
+
+ memset( padding, 0x5C, 40 );
+ sha1_starts( &sha1 );
+ sha1_update( &sha1, secret, 20 );
+ sha1_update( &sha1, padding, 40 );
+ sha1_update( &sha1, buf + len, 20 );
+ sha1_finish( &sha1, buf + len );
+}
+
+/*
+ * Encryption/decryption functions
+ */
+static int ssl_encrypt_buf( ssl_context *ssl )
+{
+ size_t i, padlen;
+
+ SSL_DEBUG_MSG( 2, ( "=> encrypt buf" ) );
+
+ /*
+ * Add MAC then encrypt
+ */
+ if( ssl->minor_ver == SSL_MINOR_VERSION_0 )
+ {
+ if( ssl->maclen == 16 )
+ ssl_mac_md5( ssl->mac_enc,
+ ssl->out_msg, ssl->out_msglen,
+ ssl->out_ctr, ssl->out_msgtype );
+
+ if( ssl->maclen == 20 )
+ ssl_mac_sha1( ssl->mac_enc,
+ ssl->out_msg, ssl->out_msglen,
+ ssl->out_ctr, ssl->out_msgtype );
+ }
+ else
+ {
+ if( ssl->maclen == 16 )
+ md5_hmac( ssl->mac_enc, 16,
+ ssl->out_ctr, ssl->out_msglen + 13,
+ ssl->out_msg + ssl->out_msglen );
+
+ if( ssl->maclen == 20 )
+ sha1_hmac( ssl->mac_enc, 20,
+ ssl->out_ctr, ssl->out_msglen + 13,
+ ssl->out_msg + ssl->out_msglen );
+ }
+
+ SSL_DEBUG_BUF( 4, "computed mac",
+ ssl->out_msg + ssl->out_msglen, ssl->maclen );
+
+ ssl->out_msglen += ssl->maclen;
+
+ for( i = 8; i > 0; i-- )
+ if( ++ssl->out_ctr[i - 1] != 0 )
+ break;
+
+ if( ssl->ivlen == 0 )
+ {
+#if defined(POLARSSL_ARC4_C)
+ padlen = 0;
+
+ SSL_DEBUG_MSG( 3, ( "before encrypt: msglen = %d, "
+ "including %d bytes of padding",
+ ssl->out_msglen, 0 ) );
+
+ SSL_DEBUG_BUF( 4, "before encrypt: output payload",
+ ssl->out_msg, ssl->out_msglen );
+
+ arc4_crypt( (arc4_context *) ssl->ctx_enc,
+ ssl->out_msglen, ssl->out_msg,
+ ssl->out_msg );
+#else
+ return( POLARSSL_ERR_SSL_FEATURE_UNAVAILABLE );
+#endif
+ }
+ else
+ {
+ unsigned char *enc_msg;
+ size_t enc_msglen;
+
+ padlen = ssl->ivlen - ( ssl->out_msglen + 1 ) % ssl->ivlen;
+ if( padlen == ssl->ivlen )
+ padlen = 0;
+
+ for( i = 0; i <= padlen; i++ )
+ ssl->out_msg[ssl->out_msglen + i] = (unsigned char) padlen;
+
+ ssl->out_msglen += padlen + 1;
+
+ enc_msglen = ssl->out_msglen;
+ enc_msg = ssl->out_msg;
+
+ /*
+ * Prepend per-record IV for block cipher in TLS v1.1 as per
+ * Method 1 (6.2.3.2. in RFC4346)
+ */
+ if( ssl->minor_ver == SSL_MINOR_VERSION_2 )
+ {
+ /*
+ * Generate IV
+ */
+ int ret = ssl->f_rng( ssl->p_rng, ssl->iv_enc, ssl->ivlen );
+ if( ret != 0 )
+ return( ret );
+
+ /*
+ * Shift message for ivlen bytes and prepend IV
+ */
+ memmove( ssl->out_msg + ssl->ivlen, ssl->out_msg, ssl->out_msglen );
+ memcpy( ssl->out_msg, ssl->iv_enc, ssl->ivlen );
+
+ /*
+ * Fix pointer positions and message length with added IV
+ */
+ enc_msg = ssl->out_msg + ssl->ivlen;
+ enc_msglen = ssl->out_msglen;
+ ssl->out_msglen += ssl->ivlen;
+ }
+
+ SSL_DEBUG_MSG( 3, ( "before encrypt: msglen = %d, "
+ "including %d bytes of IV and %d bytes of padding",
+ ssl->out_msglen, ssl->ivlen, padlen + 1 ) );
+
+ SSL_DEBUG_BUF( 4, "before encrypt: output payload",
+ ssl->out_msg, ssl->out_msglen );
+
+ switch( ssl->ivlen )
+ {
+ case 8:
+#if defined(POLARSSL_DES_C)
+ des3_crypt_cbc( (des3_context *) ssl->ctx_enc,
+ DES_ENCRYPT, enc_msglen,
+ ssl->iv_enc, enc_msg, enc_msg );
+ break;
+#endif
+
+ case 16:
+#if defined(POLARSSL_AES_C)
+ if ( ssl->session->ciphersuite == SSL_RSA_AES_128_SHA ||
+ ssl->session->ciphersuite == SSL_EDH_RSA_AES_128_SHA ||
+ ssl->session->ciphersuite == SSL_RSA_AES_256_SHA ||
+ ssl->session->ciphersuite == SSL_EDH_RSA_AES_256_SHA)
+ {
+ aes_crypt_cbc( (aes_context *) ssl->ctx_enc,
+ AES_ENCRYPT, enc_msglen,
+ ssl->iv_enc, enc_msg, enc_msg);
+ break;
+ }
+#endif
+
+#if defined(POLARSSL_CAMELLIA_C)
+ if ( ssl->session->ciphersuite == SSL_RSA_CAMELLIA_128_SHA ||
+ ssl->session->ciphersuite == SSL_EDH_RSA_CAMELLIA_128_SHA ||
+ ssl->session->ciphersuite == SSL_RSA_CAMELLIA_256_SHA ||
+ ssl->session->ciphersuite == SSL_EDH_RSA_CAMELLIA_256_SHA)
+ {
+ camellia_crypt_cbc( (camellia_context *) ssl->ctx_enc,
+ CAMELLIA_ENCRYPT, enc_msglen,
+ ssl->iv_enc, enc_msg, enc_msg );
+ break;
+ }
+#endif
+
+ default:
+ return( POLARSSL_ERR_SSL_FEATURE_UNAVAILABLE );
+ }
+ }
+
+ SSL_DEBUG_MSG( 2, ( "<= encrypt buf" ) );
+
+ return( 0 );
+}
+
+static int ssl_decrypt_buf( ssl_context *ssl )
+{
+ size_t i, padlen;
+ unsigned char tmp[20];
+
+ SSL_DEBUG_MSG( 2, ( "=> decrypt buf" ) );
+
+ if( ssl->in_msglen < ssl->minlen )
+ {
+ SSL_DEBUG_MSG( 1, ( "in_msglen (%d) < minlen (%d)",
+ ssl->in_msglen, ssl->minlen ) );
+ return( POLARSSL_ERR_SSL_INVALID_MAC );
+ }
+
+ if( ssl->ivlen == 0 )
+ {
+#if defined(POLARSSL_ARC4_C)
+ padlen = 0;
+ arc4_crypt( (arc4_context *) ssl->ctx_dec,
+ ssl->in_msglen, ssl->in_msg,
+ ssl->in_msg );
+#else
+ return( POLARSSL_ERR_SSL_FEATURE_UNAVAILABLE );
+#endif
+ }
+ else
+ {
+ unsigned char *dec_msg;
+ unsigned char *dec_msg_result;
+ size_t dec_msglen;
+
+ /*
+ * Decrypt and check the padding
+ */
+ if( ssl->in_msglen % ssl->ivlen != 0 )
+ {
+ SSL_DEBUG_MSG( 1, ( "msglen (%d) %% ivlen (%d) != 0",
+ ssl->in_msglen, ssl->ivlen ) );
+ return( POLARSSL_ERR_SSL_INVALID_MAC );
+ }
+
+ dec_msglen = ssl->in_msglen;
+ dec_msg = ssl->in_msg;
+ dec_msg_result = ssl->in_msg;
+
+ /*
+ * Initialize for prepended IV for block cipher in TLS v1.1
+ */
+ if( ssl->minor_ver == SSL_MINOR_VERSION_2 )
+ {
+ dec_msg += ssl->ivlen;
+ dec_msglen -= ssl->ivlen;
+ ssl->in_msglen -= ssl->ivlen;
+
+ for( i = 0; i < ssl->ivlen; i++ )
+ ssl->iv_dec[i] = ssl->in_msg[i];
+ }
+
+ switch( ssl->ivlen )
+ {
+#if defined(POLARSSL_DES_C)
+ case 8:
+ des3_crypt_cbc( (des3_context *) ssl->ctx_dec,
+ DES_DECRYPT, dec_msglen,
+ ssl->iv_dec, dec_msg, dec_msg_result );
+ break;
+#endif
+
+ case 16:
+#if defined(POLARSSL_AES_C)
+ if ( ssl->session->ciphersuite == SSL_RSA_AES_128_SHA ||
+ ssl->session->ciphersuite == SSL_EDH_RSA_AES_128_SHA ||
+ ssl->session->ciphersuite == SSL_RSA_AES_256_SHA ||
+ ssl->session->ciphersuite == SSL_EDH_RSA_AES_256_SHA)
+ {
+ aes_crypt_cbc( (aes_context *) ssl->ctx_dec,
+ AES_DECRYPT, dec_msglen,
+ ssl->iv_dec, dec_msg, dec_msg_result );
+ break;
+ }
+#endif
+
+#if defined(POLARSSL_CAMELLIA_C)
+ if ( ssl->session->ciphersuite == SSL_RSA_CAMELLIA_128_SHA ||
+ ssl->session->ciphersuite == SSL_EDH_RSA_CAMELLIA_128_SHA ||
+ ssl->session->ciphersuite == SSL_RSA_CAMELLIA_256_SHA ||
+ ssl->session->ciphersuite == SSL_EDH_RSA_CAMELLIA_256_SHA)
+ {
+ camellia_crypt_cbc( (camellia_context *) ssl->ctx_dec,
+ CAMELLIA_DECRYPT, dec_msglen,
+ ssl->iv_dec, dec_msg, dec_msg_result );
+ break;
+ }
+#endif
+
+ default:
+ return( POLARSSL_ERR_SSL_FEATURE_UNAVAILABLE );
+ }
+
+ padlen = 1 + ssl->in_msg[ssl->in_msglen - 1];
+
+ if( ssl->minor_ver == SSL_MINOR_VERSION_0 )
+ {
+ if( padlen > ssl->ivlen )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad padding length: is %d, "
+ "should be no more than %d",
+ padlen, ssl->ivlen ) );
+ padlen = 0;
+ }
+ }
+ else
+ {
+ /*
+ * TLSv1: always check the padding
+ */
+ for( i = 1; i <= padlen; i++ )
+ {
+ if( ssl->in_msg[ssl->in_msglen - i] != padlen - 1 )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad padding byte: should be "
+ "%02x, but is %02x", padlen - 1,
+ ssl->in_msg[ssl->in_msglen - i] ) );
+ padlen = 0;
+ }
+ }
+ }
+ }
+
+ SSL_DEBUG_BUF( 4, "raw buffer after decryption",
+ ssl->in_msg, ssl->in_msglen );
+
+ /*
+ * Always compute the MAC (RFC4346, CBCTIME).
+ */
+ ssl->in_msglen -= ( ssl->maclen + padlen );
+
+ ssl->in_hdr[3] = (unsigned char)( ssl->in_msglen >> 8 );
+ ssl->in_hdr[4] = (unsigned char)( ssl->in_msglen );
+
+ memcpy( tmp, ssl->in_msg + ssl->in_msglen, 20 );
+
+ if( ssl->minor_ver == SSL_MINOR_VERSION_0 )
+ {
+ if( ssl->maclen == 16 )
+ ssl_mac_md5( ssl->mac_dec,
+ ssl->in_msg, ssl->in_msglen,
+ ssl->in_ctr, ssl->in_msgtype );
+ else
+ ssl_mac_sha1( ssl->mac_dec,
+ ssl->in_msg, ssl->in_msglen,
+ ssl->in_ctr, ssl->in_msgtype );
+ }
+ else
+ {
+ if( ssl->maclen == 16 )
+ md5_hmac( ssl->mac_dec, 16,
+ ssl->in_ctr, ssl->in_msglen + 13,
+ ssl->in_msg + ssl->in_msglen );
+ else
+ sha1_hmac( ssl->mac_dec, 20,
+ ssl->in_ctr, ssl->in_msglen + 13,
+ ssl->in_msg + ssl->in_msglen );
+ }
+
+ SSL_DEBUG_BUF( 4, "message mac", tmp, ssl->maclen );
+ SSL_DEBUG_BUF( 4, "computed mac", ssl->in_msg + ssl->in_msglen,
+ ssl->maclen );
+
+ if( memcmp( tmp, ssl->in_msg + ssl->in_msglen,
+ ssl->maclen ) != 0 )
+ {
+ SSL_DEBUG_MSG( 1, ( "message mac does not match" ) );
+ return( POLARSSL_ERR_SSL_INVALID_MAC );
+ }
+
+ /*
+ * Finally check the padding length; bad padding
+ * will produce the same error as an invalid MAC.
+ */
+ if( ssl->ivlen != 0 && padlen == 0 )
+ return( POLARSSL_ERR_SSL_INVALID_MAC );
+
+ if( ssl->in_msglen == 0 )
+ {
+ ssl->nb_zero++;
+
+ /*
+ * Three or more empty messages may be a DoS attack
+ * (excessive CPU consumption).
+ */
+ if( ssl->nb_zero > 3 )
+ {
+ SSL_DEBUG_MSG( 1, ( "received four consecutive empty "
+ "messages, possible DoS attack" ) );
+ return( POLARSSL_ERR_SSL_INVALID_MAC );
+ }
+ }
+ else
+ ssl->nb_zero = 0;
+
+ for( i = 8; i > 0; i-- )
+ if( ++ssl->in_ctr[i - 1] != 0 )
+ break;
+
+ SSL_DEBUG_MSG( 2, ( "<= decrypt buf" ) );
+
+ return( 0 );
+}
+
+/*
+ * Fill the input message buffer
+ */
+int ssl_fetch_input( ssl_context *ssl, size_t nb_want )
+{
+ int ret;
+ size_t len;
+
+ SSL_DEBUG_MSG( 2, ( "=> fetch input" ) );
+
+ while( ssl->in_left < nb_want )
+ {
+ len = nb_want - ssl->in_left;
+ ret = ssl->f_recv( ssl->p_recv, ssl->in_hdr + ssl->in_left, len );
+
+ SSL_DEBUG_MSG( 2, ( "in_left: %d, nb_want: %d",
+ ssl->in_left, nb_want ) );
+ SSL_DEBUG_RET( 2, "ssl->f_recv", ret );
+
+ if( ret == 0 )
+ return( POLARSSL_ERR_SSL_CONN_EOF );
+
+ if( ret < 0 )
+ return( ret );
+
+ ssl->in_left += ret;
+ }
+
+ SSL_DEBUG_MSG( 2, ( "<= fetch input" ) );
+
+ return( 0 );
+}
+
+/*
+ * Flush any data not yet written
+ */
+int ssl_flush_output( ssl_context *ssl )
+{
+ int ret;
+ unsigned char *buf;
+
+ SSL_DEBUG_MSG( 2, ( "=> flush output" ) );
+
+ while( ssl->out_left > 0 )
+ {
+ SSL_DEBUG_MSG( 2, ( "message length: %d, out_left: %d",
+ 5 + ssl->out_msglen, ssl->out_left ) );
+
+ buf = ssl->out_hdr + 5 + ssl->out_msglen - ssl->out_left;
+ ret = ssl->f_send( ssl->p_send, buf, ssl->out_left );
+ SSL_DEBUG_RET( 2, "ssl->f_send", ret );
+
+ if( ret <= 0 )
+ return( ret );
+
+ ssl->out_left -= ret;
+ }
+
+ SSL_DEBUG_MSG( 2, ( "<= flush output" ) );
+
+ return( 0 );
+}
+
+/*
+ * Record layer functions
+ */
+int ssl_write_record( ssl_context *ssl )
+{
+ int ret;
+ size_t len = ssl->out_msglen;
+
+ SSL_DEBUG_MSG( 2, ( "=> write record" ) );
+
+ ssl->out_hdr[0] = (unsigned char) ssl->out_msgtype;
+ ssl->out_hdr[1] = (unsigned char) ssl->major_ver;
+ ssl->out_hdr[2] = (unsigned char) ssl->minor_ver;
+ ssl->out_hdr[3] = (unsigned char)( len >> 8 );
+ ssl->out_hdr[4] = (unsigned char)( len );
+
+ if( ssl->out_msgtype == SSL_MSG_HANDSHAKE )
+ {
+ ssl->out_msg[1] = (unsigned char)( ( len - 4 ) >> 16 );
+ ssl->out_msg[2] = (unsigned char)( ( len - 4 ) >> 8 );
+ ssl->out_msg[3] = (unsigned char)( ( len - 4 ) );
+
+ md5_update( &ssl->fin_md5 , ssl->out_msg, len );
+ sha1_update( &ssl->fin_sha1, ssl->out_msg, len );
+ }
+
+ if( ssl->do_crypt != 0 )
+ {
+ if( ( ret = ssl_encrypt_buf( ssl ) ) != 0 )
+ {
+ SSL_DEBUG_RET( 1, "ssl_encrypt_buf", ret );
+ return( ret );
+ }
+
+ len = ssl->out_msglen;
+ ssl->out_hdr[3] = (unsigned char)( len >> 8 );
+ ssl->out_hdr[4] = (unsigned char)( len );
+ }
+
+ ssl->out_left = 5 + ssl->out_msglen;
+
+ SSL_DEBUG_MSG( 3, ( "output record: msgtype = %d, "
+ "version = [%d:%d], msglen = %d",
+ ssl->out_hdr[0], ssl->out_hdr[1], ssl->out_hdr[2],
+ ( ssl->out_hdr[3] << 8 ) | ssl->out_hdr[4] ) );
+
+ SSL_DEBUG_BUF( 4, "output record sent to network",
+ ssl->out_hdr, 5 + ssl->out_msglen );
+
+ if( ( ret = ssl_flush_output( ssl ) ) != 0 )
+ {
+ SSL_DEBUG_RET( 1, "ssl_flush_output", ret );
+ return( ret );
+ }
+
+ SSL_DEBUG_MSG( 2, ( "<= write record" ) );
+
+ return( 0 );
+}
+
+int ssl_read_record( ssl_context *ssl )
+{
+ int ret;
+
+ SSL_DEBUG_MSG( 2, ( "=> read record" ) );
+
+ if( ssl->in_hslen != 0 &&
+ ssl->in_hslen < ssl->in_msglen )
+ {
+ /*
+ * Get next Handshake message in the current record
+ */
+ ssl->in_msglen -= ssl->in_hslen;
+
+ memmove( ssl->in_msg, ssl->in_msg + ssl->in_hslen,
+ ssl->in_msglen );
+
+ ssl->in_hslen = 4;
+ ssl->in_hslen += ( ssl->in_msg[2] << 8 ) | ssl->in_msg[3];
+
+ SSL_DEBUG_MSG( 3, ( "handshake message: msglen ="
+ " %d, type = %d, hslen = %d",
+ ssl->in_msglen, ssl->in_msg[0], ssl->in_hslen ) );
+
+ if( ssl->in_msglen < 4 || ssl->in_msg[1] != 0 )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad handshake length" ) );
+ return( POLARSSL_ERR_SSL_INVALID_RECORD );
+ }
+
+ if( ssl->in_msglen < ssl->in_hslen )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad handshake length" ) );
+ return( POLARSSL_ERR_SSL_INVALID_RECORD );
+ }
+
+ md5_update( &ssl->fin_md5 , ssl->in_msg, ssl->in_hslen );
+ sha1_update( &ssl->fin_sha1, ssl->in_msg, ssl->in_hslen );
+
+ return( 0 );
+ }
+
+ ssl->in_hslen = 0;
+
+ /*
+ * Read the record header and validate it
+ */
+ if( ( ret = ssl_fetch_input( ssl, 5 ) ) != 0 )
+ {
+ SSL_DEBUG_RET( 1, "ssl_fetch_input", ret );
+ return( ret );
+ }
+
+ ssl->in_msgtype = ssl->in_hdr[0];
+ ssl->in_msglen = ( ssl->in_hdr[3] << 8 ) | ssl->in_hdr[4];
+
+ SSL_DEBUG_MSG( 3, ( "input record: msgtype = %d, "
+ "version = [%d:%d], msglen = %d",
+ ssl->in_hdr[0], ssl->in_hdr[1], ssl->in_hdr[2],
+ ( ssl->in_hdr[3] << 8 ) | ssl->in_hdr[4] ) );
+
+ if( ssl->in_hdr[1] != ssl->major_ver )
+ {
+ SSL_DEBUG_MSG( 1, ( "major version mismatch" ) );
+ return( POLARSSL_ERR_SSL_INVALID_RECORD );
+ }
+
+ if( ssl->in_hdr[2] > ssl->max_minor_ver )
+ {
+ SSL_DEBUG_MSG( 1, ( "minor version mismatch" ) );
+ return( POLARSSL_ERR_SSL_INVALID_RECORD );
+ }
+
+ /*
+ * Make sure the message length is acceptable
+ */
+ if( ssl->do_crypt == 0 )
+ {
+ if( ssl->in_msglen < 1 ||
+ ssl->in_msglen > SSL_MAX_CONTENT_LEN )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad message length" ) );
+ return( POLARSSL_ERR_SSL_INVALID_RECORD );
+ }
+ }
+ else
+ {
+ if( ssl->in_msglen < ssl->minlen )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad message length" ) );
+ return( POLARSSL_ERR_SSL_INVALID_RECORD );
+ }
+
+ if( ssl->minor_ver == SSL_MINOR_VERSION_0 &&
+ ssl->in_msglen > ssl->minlen + SSL_MAX_CONTENT_LEN )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad message length" ) );
+ return( POLARSSL_ERR_SSL_INVALID_RECORD );
+ }
+
+ /*
+ * TLS encrypted messages can have up to 256 bytes of padding
+ */
+ if( ssl->minor_ver == SSL_MINOR_VERSION_1 &&
+ ssl->in_msglen > ssl->minlen + SSL_MAX_CONTENT_LEN + 256 )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad message length" ) );
+ return( POLARSSL_ERR_SSL_INVALID_RECORD );
+ }
+ }
+
+ /*
+ * Read and optionally decrypt the message contents
+ */
+ if( ( ret = ssl_fetch_input( ssl, 5 + ssl->in_msglen ) ) != 0 )
+ {
+ SSL_DEBUG_RET( 1, "ssl_fetch_input", ret );
+ return( ret );
+ }
+
+ SSL_DEBUG_BUF( 4, "input record from network",
+ ssl->in_hdr, 5 + ssl->in_msglen );
+
+ if( ssl->do_crypt != 0 )
+ {
+ if( ( ret = ssl_decrypt_buf( ssl ) ) != 0 )
+ {
+ SSL_DEBUG_RET( 1, "ssl_decrypt_buf", ret );
+ return( ret );
+ }
+
+ SSL_DEBUG_BUF( 4, "input payload after decrypt",
+ ssl->in_msg, ssl->in_msglen );
+
+ if( ssl->in_msglen > SSL_MAX_CONTENT_LEN )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad message length" ) );
+ return( POLARSSL_ERR_SSL_INVALID_RECORD );
+ }
+ }
+
+ if( ssl->in_msgtype == SSL_MSG_HANDSHAKE )
+ {
+ ssl->in_hslen = 4;
+ ssl->in_hslen += ( ssl->in_msg[2] << 8 ) | ssl->in_msg[3];
+
+ SSL_DEBUG_MSG( 3, ( "handshake message: msglen ="
+ " %d, type = %d, hslen = %d",
+ ssl->in_msglen, ssl->in_msg[0], ssl->in_hslen ) );
+
+ /*
+ * Additional checks to validate the handshake header
+ */
+ if( ssl->in_msglen < 4 || ssl->in_msg[1] != 0 )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad handshake length" ) );
+ return( POLARSSL_ERR_SSL_INVALID_RECORD );
+ }
+
+ if( ssl->in_msglen < ssl->in_hslen )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad handshake length" ) );
+ return( POLARSSL_ERR_SSL_INVALID_RECORD );
+ }
+
+ md5_update( &ssl->fin_md5 , ssl->in_msg, ssl->in_hslen );
+ sha1_update( &ssl->fin_sha1, ssl->in_msg, ssl->in_hslen );
+ }
+
+ if( ssl->in_msgtype == SSL_MSG_ALERT )
+ {
+ SSL_DEBUG_MSG( 2, ( "got an alert message, type: [%d:%d]",
+ ssl->in_msg[0], ssl->in_msg[1] ) );
+
+ /*
+ * Ignore non-fatal alerts, except close_notify
+ */
+ if( ssl->in_msg[0] == SSL_ALERT_LEVEL_FATAL )
+ {
+ SSL_DEBUG_MSG( 1, ( "is a fatal alert message" ) );
+ /**
+ * Subtract from error code as ssl->in_msg[1] is 7-bit positive
+ * error identifier.
+ */
+ return( POLARSSL_ERR_SSL_FATAL_ALERT_MESSAGE - ssl->in_msg[1] );
+ }
+
+ if( ssl->in_msg[0] == SSL_ALERT_LEVEL_WARNING &&
+ ssl->in_msg[1] == SSL_ALERT_MSG_CLOSE_NOTIFY )
+ {
+ SSL_DEBUG_MSG( 2, ( "is a close notify message" ) );
+ return( POLARSSL_ERR_SSL_PEER_CLOSE_NOTIFY );
+ }
+ }
+
+ ssl->in_left = 0;
+
+ SSL_DEBUG_MSG( 2, ( "<= read record" ) );
+
+ return( 0 );
+}
+
+/*
+ * Handshake functions
+ */
+int ssl_write_certificate( ssl_context *ssl )
+{
+ int ret;
+ size_t i, n;
+ const x509_cert *crt;
+
+ SSL_DEBUG_MSG( 2, ( "=> write certificate" ) );
+
+ if( ssl->endpoint == SSL_IS_CLIENT )
+ {
+ if( ssl->client_auth == 0 )
+ {
+ SSL_DEBUG_MSG( 2, ( "<= skip write certificate" ) );
+ ssl->state++;
+ return( 0 );
+ }
+
+ /*
+ * If using SSLv3 and got no cert, send an Alert message
+ * (otherwise an empty Certificate message will be sent).
+ */
+ if( ssl->own_cert == NULL &&
+ ssl->minor_ver == SSL_MINOR_VERSION_0 )
+ {
+ ssl->out_msglen = 2;
+ ssl->out_msgtype = SSL_MSG_ALERT;
+ ssl->out_msg[0] = SSL_ALERT_LEVEL_WARNING;
+ ssl->out_msg[1] = SSL_ALERT_MSG_NO_CERT;
+
+ SSL_DEBUG_MSG( 2, ( "got no certificate to send" ) );
+ goto write_msg;
+ }
+ }
+ else /* SSL_IS_SERVER */
+ {
+ if( ssl->own_cert == NULL )
+ {
+ SSL_DEBUG_MSG( 1, ( "got no certificate to send" ) );
+ return( POLARSSL_ERR_SSL_CERTIFICATE_REQUIRED );
+ }
+ }
+
+ SSL_DEBUG_CRT( 3, "own certificate", ssl->own_cert );
+
+ /*
+ * 0 . 0 handshake type
+ * 1 . 3 handshake length
+ * 4 . 6 length of all certs
+ * 7 . 9 length of cert. 1
+ * 10 . n-1 peer certificate
+ * n . n+2 length of cert. 2
+ * n+3 . ... upper level cert, etc.
+ */
+ i = 7;
+ crt = ssl->own_cert;
+
+ while( crt != NULL )
+ {
+ n = crt->raw.len;
+ if( i + 3 + n > SSL_MAX_CONTENT_LEN )
+ {
+ SSL_DEBUG_MSG( 1, ( "certificate too large, %d > %d",
+ i + 3 + n, SSL_MAX_CONTENT_LEN ) );
+ return( POLARSSL_ERR_SSL_CERTIFICATE_TOO_LARGE );
+ }
+
+ ssl->out_msg[i ] = (unsigned char)( n >> 16 );
+ ssl->out_msg[i + 1] = (unsigned char)( n >> 8 );
+ ssl->out_msg[i + 2] = (unsigned char)( n );
+
+ i += 3; memcpy( ssl->out_msg + i, crt->raw.p, n );
+ i += n; crt = crt->next;
+ }
+
+ ssl->out_msg[4] = (unsigned char)( ( i - 7 ) >> 16 );
+ ssl->out_msg[5] = (unsigned char)( ( i - 7 ) >> 8 );
+ ssl->out_msg[6] = (unsigned char)( ( i - 7 ) );
+
+ ssl->out_msglen = i;
+ ssl->out_msgtype = SSL_MSG_HANDSHAKE;
+ ssl->out_msg[0] = SSL_HS_CERTIFICATE;
+
+write_msg:
+
+ ssl->state++;
+
+ if( ( ret = ssl_write_record( ssl ) ) != 0 )
+ {
+ SSL_DEBUG_RET( 1, "ssl_write_record", ret );
+ return( ret );
+ }
+
+ SSL_DEBUG_MSG( 2, ( "<= write certificate" ) );
+
+ return( 0 );
+}
+
+int ssl_parse_certificate( ssl_context *ssl )
+{
+ int ret;
+ size_t i, n;
+
+ SSL_DEBUG_MSG( 2, ( "=> parse certificate" ) );
+
+ if( ssl->endpoint == SSL_IS_SERVER &&
+ ssl->authmode == SSL_VERIFY_NONE )
+ {
+ ssl->verify_result = BADCERT_SKIP_VERIFY;
+ SSL_DEBUG_MSG( 2, ( "<= skip parse certificate" ) );
+ ssl->state++;
+ return( 0 );
+ }
+
+ if( ( ret = ssl_read_record( ssl ) ) != 0 )
+ {
+ SSL_DEBUG_RET( 1, "ssl_read_record", ret );
+ return( ret );
+ }
+
+ ssl->state++;
+
+ /*
+ * Check if the client sent an empty certificate
+ */
+ if( ssl->endpoint == SSL_IS_SERVER &&
+ ssl->minor_ver == SSL_MINOR_VERSION_0 )
+ {
+ if( ssl->in_msglen == 2 &&
+ ssl->in_msgtype == SSL_MSG_ALERT &&
+ ssl->in_msg[0] == SSL_ALERT_LEVEL_WARNING &&
+ ssl->in_msg[1] == SSL_ALERT_MSG_NO_CERT )
+ {
+ SSL_DEBUG_MSG( 1, ( "SSLv3 client has no certificate" ) );
+
+ ssl->verify_result = BADCERT_MISSING;
+ if( ssl->authmode == SSL_VERIFY_OPTIONAL )
+ return( 0 );
+ else
+ return( POLARSSL_ERR_SSL_NO_CLIENT_CERTIFICATE );
+ }
+ }
+
+ if( ssl->endpoint == SSL_IS_SERVER &&
+ ssl->minor_ver != SSL_MINOR_VERSION_0 )
+ {
+ if( ssl->in_hslen == 7 &&
+ ssl->in_msgtype == SSL_MSG_HANDSHAKE &&
+ ssl->in_msg[0] == SSL_HS_CERTIFICATE &&
+ memcmp( ssl->in_msg + 4, "\0\0\0", 3 ) == 0 )
+ {
+ SSL_DEBUG_MSG( 1, ( "TLSv1 client has no certificate" ) );
+
+ ssl->verify_result = BADCERT_MISSING;
+ if( ssl->authmode == SSL_VERIFY_REQUIRED )
+ return( POLARSSL_ERR_SSL_NO_CLIENT_CERTIFICATE );
+ else
+ return( 0 );
+ }
+ }
+
+ if( ssl->in_msgtype != SSL_MSG_HANDSHAKE )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad certificate message" ) );
+ return( POLARSSL_ERR_SSL_UNEXPECTED_MESSAGE );
+ }
+
+ if( ssl->in_msg[0] != SSL_HS_CERTIFICATE || ssl->in_hslen < 10 )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad certificate message" ) );
+ return( POLARSSL_ERR_SSL_BAD_HS_CERTIFICATE );
+ }
+
+ /*
+ * Same message structure as in ssl_write_certificate()
+ */
+ n = ( ssl->in_msg[5] << 8 ) | ssl->in_msg[6];
+
+ if( ssl->in_msg[4] != 0 || ssl->in_hslen != 7 + n )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad certificate message" ) );
+ return( POLARSSL_ERR_SSL_BAD_HS_CERTIFICATE );
+ }
+
+ if( ( ssl->peer_cert = (x509_cert *) malloc(
+ sizeof( x509_cert ) ) ) == NULL )
+ {
+ SSL_DEBUG_MSG( 1, ( "malloc(%d bytes) failed",
+ sizeof( x509_cert ) ) );
+ return( POLARSSL_ERR_SSL_MALLOC_FAILED );
+ }
+
+ memset( ssl->peer_cert, 0, sizeof( x509_cert ) );
+
+ i = 7;
+
+ while( i < ssl->in_hslen )
+ {
+ if( ssl->in_msg[i] != 0 )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad certificate message" ) );
+ return( POLARSSL_ERR_SSL_BAD_HS_CERTIFICATE );
+ }
+
+ n = ( (unsigned int) ssl->in_msg[i + 1] << 8 )
+ | (unsigned int) ssl->in_msg[i + 2];
+ i += 3;
+
+ if( n < 128 || i + n > ssl->in_hslen )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad certificate message" ) );
+ return( POLARSSL_ERR_SSL_BAD_HS_CERTIFICATE );
+ }
+
+ ret = x509parse_crt( ssl->peer_cert, ssl->in_msg + i, n );
+ if( ret != 0 )
+ {
+ SSL_DEBUG_RET( 1, " x509parse_crt", ret );
+ return( ret );
+ }
+
+ i += n;
+ }
+
+ SSL_DEBUG_CRT( 3, "peer certificate", ssl->peer_cert );
+
+ if( ssl->authmode != SSL_VERIFY_NONE )
+ {
+ if( ssl->ca_chain == NULL )
+ {
+ SSL_DEBUG_MSG( 1, ( "got no CA chain" ) );
+ return( POLARSSL_ERR_SSL_CA_CHAIN_REQUIRED );
+ }
+
+ ret = x509parse_verify( ssl->peer_cert, ssl->ca_chain, ssl->ca_crl,
+ ssl->peer_cn, &ssl->verify_result,
+ ssl->f_vrfy, ssl->p_vrfy );
+
+ if( ret != 0 )
+ SSL_DEBUG_RET( 1, "x509_verify_cert", ret );
+
+ if( ssl->authmode != SSL_VERIFY_REQUIRED )
+ ret = 0;
+ }
+
+ SSL_DEBUG_MSG( 2, ( "<= parse certificate" ) );
+
+ return( ret );
+}
+
+int ssl_write_change_cipher_spec( ssl_context *ssl )
+{
+ int ret;
+
+ SSL_DEBUG_MSG( 2, ( "=> write change cipher spec" ) );
+
+ ssl->out_msgtype = SSL_MSG_CHANGE_CIPHER_SPEC;
+ ssl->out_msglen = 1;
+ ssl->out_msg[0] = 1;
+
+ ssl->do_crypt = 0;
+ ssl->state++;
+
+ if( ( ret = ssl_write_record( ssl ) ) != 0 )
+ {
+ SSL_DEBUG_RET( 1, "ssl_write_record", ret );
+ return( ret );
+ }
+
+ SSL_DEBUG_MSG( 2, ( "<= write change cipher spec" ) );
+
+ return( 0 );
+}
+
+int ssl_parse_change_cipher_spec( ssl_context *ssl )
+{
+ int ret;
+
+ SSL_DEBUG_MSG( 2, ( "=> parse change cipher spec" ) );
+
+ ssl->do_crypt = 0;
+
+ if( ( ret = ssl_read_record( ssl ) ) != 0 )
+ {
+ SSL_DEBUG_RET( 1, "ssl_read_record", ret );
+ return( ret );
+ }
+
+ if( ssl->in_msgtype != SSL_MSG_CHANGE_CIPHER_SPEC )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad change cipher spec message" ) );
+ return( POLARSSL_ERR_SSL_UNEXPECTED_MESSAGE );
+ }
+
+ if( ssl->in_msglen != 1 || ssl->in_msg[0] != 1 )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad change cipher spec message" ) );
+ return( POLARSSL_ERR_SSL_BAD_HS_CHANGE_CIPHER_SPEC );
+ }
+
+ ssl->state++;
+
+ SSL_DEBUG_MSG( 2, ( "<= parse change cipher spec" ) );
+
+ return( 0 );
+}
+
+static void ssl_calc_finished(
+ ssl_context *ssl, unsigned char *buf, int from,
+ md5_context *md5, sha1_context *sha1 )
+{
+ int len = 12;
+ char *sender;
+ unsigned char padbuf[48];
+ unsigned char md5sum[16];
+ unsigned char sha1sum[20];
+
+ SSL_DEBUG_MSG( 2, ( "=> calc finished" ) );
+
+ /*
+ * SSLv3:
+ * hash =
+ * MD5( master + pad2 +
+ * MD5( handshake + sender + master + pad1 ) )
+ * + SHA1( master + pad2 +
+ * SHA1( handshake + sender + master + pad1 ) )
+ *
+ * TLSv1:
+ * hash = PRF( master, finished_label,
+ * MD5( handshake ) + SHA1( handshake ) )[0..11]
+ */
+
+ SSL_DEBUG_BUF( 4, "finished md5 state", (unsigned char *)
+ md5->state, sizeof( md5->state ) );
+
+ SSL_DEBUG_BUF( 4, "finished sha1 state", (unsigned char *)
+ sha1->state, sizeof( sha1->state ) );
+
+ if( ssl->minor_ver == SSL_MINOR_VERSION_0 )
+ {
+ sender = ( from == SSL_IS_CLIENT ) ? (char *) "CLNT"
+ : (char *) "SRVR";
+
+ memset( padbuf, 0x36, 48 );
+
+ md5_update( md5, (unsigned char *) sender, 4 );
+ md5_update( md5, ssl->session->master, 48 );
+ md5_update( md5, padbuf, 48 );
+ md5_finish( md5, md5sum );
+
+ sha1_update( sha1, (unsigned char *) sender, 4 );
+ sha1_update( sha1, ssl->session->master, 48 );
+ sha1_update( sha1, padbuf, 40 );
+ sha1_finish( sha1, sha1sum );
+
+ memset( padbuf, 0x5C, 48 );
+
+ md5_starts( md5 );
+ md5_update( md5, ssl->session->master, 48 );
+ md5_update( md5, padbuf, 48 );
+ md5_update( md5, md5sum, 16 );
+ md5_finish( md5, buf );
+
+ sha1_starts( sha1 );
+ sha1_update( sha1, ssl->session->master, 48 );
+ sha1_update( sha1, padbuf , 40 );
+ sha1_update( sha1, sha1sum, 20 );
+ sha1_finish( sha1, buf + 16 );
+
+ len += 24;
+ }
+ else
+ {
+ sender = ( from == SSL_IS_CLIENT )
+ ? (char *) "client finished"
+ : (char *) "server finished";
+
+ md5_finish( md5, padbuf );
+ sha1_finish( sha1, padbuf + 16 );
+
+ tls1_prf( ssl->session->master, 48, sender,
+ padbuf, 36, buf, len );
+ }
+
+ SSL_DEBUG_BUF( 3, "calc finished result", buf, len );
+
+ memset( md5, 0, sizeof( md5_context ) );
+ memset( sha1, 0, sizeof( sha1_context ) );
+
+ memset( padbuf, 0, sizeof( padbuf ) );
+ memset( md5sum, 0, sizeof( md5sum ) );
+ memset( sha1sum, 0, sizeof( sha1sum ) );
+
+ SSL_DEBUG_MSG( 2, ( "<= calc finished" ) );
+}
+
+int ssl_write_finished( ssl_context *ssl )
+{
+ int ret, hash_len;
+ md5_context md5;
+ sha1_context sha1;
+
+ SSL_DEBUG_MSG( 2, ( "=> write finished" ) );
+
+ memcpy( &md5 , &ssl->fin_md5 , sizeof( md5_context ) );
+ memcpy( &sha1, &ssl->fin_sha1, sizeof( sha1_context ) );
+
+ ssl_calc_finished( ssl, ssl->out_msg + 4,
+ ssl->endpoint, &md5, &sha1 );
+
+ hash_len = ( ssl->minor_ver == SSL_MINOR_VERSION_0 ) ? 36 : 12;
+
+ ssl->out_msglen = 4 + hash_len;
+ ssl->out_msgtype = SSL_MSG_HANDSHAKE;
+ ssl->out_msg[0] = SSL_HS_FINISHED;
+
+ /*
+ * In case of session resuming, invert the client and server
+ * ChangeCipherSpec messages order.
+ */
+ if( ssl->resume != 0 )
+ {
+ if( ssl->endpoint == SSL_IS_CLIENT )
+ ssl->state = SSL_HANDSHAKE_OVER;
+ else
+ ssl->state = SSL_CLIENT_CHANGE_CIPHER_SPEC;
+ }
+ else
+ ssl->state++;
+
+ ssl->do_crypt = 1;
+
+ if( ( ret = ssl_write_record( ssl ) ) != 0 )
+ {
+ SSL_DEBUG_RET( 1, "ssl_write_record", ret );
+ return( ret );
+ }
+
+ SSL_DEBUG_MSG( 2, ( "<= write finished" ) );
+
+ return( 0 );
+}
+
+int ssl_parse_finished( ssl_context *ssl )
+{
+ int ret;
+ unsigned int hash_len;
+ unsigned char buf[36];
+ md5_context md5;
+ sha1_context sha1;
+
+ SSL_DEBUG_MSG( 2, ( "=> parse finished" ) );
+
+ memcpy( &md5 , &ssl->fin_md5 , sizeof( md5_context ) );
+ memcpy( &sha1, &ssl->fin_sha1, sizeof( sha1_context ) );
+
+ ssl->do_crypt = 1;
+
+ if( ( ret = ssl_read_record( ssl ) ) != 0 )
+ {
+ SSL_DEBUG_RET( 1, "ssl_read_record", ret );
+ return( ret );
+ }
+
+ if( ssl->in_msgtype != SSL_MSG_HANDSHAKE )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad finished message" ) );
+ return( POLARSSL_ERR_SSL_UNEXPECTED_MESSAGE );
+ }
+
+ hash_len = ( ssl->minor_ver == SSL_MINOR_VERSION_0 ) ? 36 : 12;
+
+ if( ssl->in_msg[0] != SSL_HS_FINISHED ||
+ ssl->in_hslen != 4 + hash_len )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad finished message" ) );
+ return( POLARSSL_ERR_SSL_BAD_HS_FINISHED );
+ }
+
+ ssl_calc_finished( ssl, buf, ssl->endpoint ^ 1, &md5, &sha1 );
+
+ if( memcmp( ssl->in_msg + 4, buf, hash_len ) != 0 )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad finished message" ) );
+ return( POLARSSL_ERR_SSL_BAD_HS_FINISHED );
+ }
+
+ if( ssl->resume != 0 )
+ {
+ if( ssl->endpoint == SSL_IS_CLIENT )
+ ssl->state = SSL_CLIENT_CHANGE_CIPHER_SPEC;
+
+ if( ssl->endpoint == SSL_IS_SERVER )
+ ssl->state = SSL_HANDSHAKE_OVER;
+ }
+ else
+ ssl->state++;
+
+ SSL_DEBUG_MSG( 2, ( "<= parse finished" ) );
+
+ return( 0 );
+}
+
+/*
+ * Initialize an SSL context
+ */
+int ssl_init( ssl_context *ssl )
+{
+ int len = SSL_BUFFER_LEN;
+
+ memset( ssl, 0, sizeof( ssl_context ) );
+
+ ssl->in_ctr = (unsigned char *) malloc( len );
+ ssl->in_hdr = ssl->in_ctr + 8;
+ ssl->in_msg = ssl->in_ctr + 13;
+
+ if( ssl->in_ctr == NULL )
+ {
+ SSL_DEBUG_MSG( 1, ( "malloc(%d bytes) failed", len ) );
+ return( POLARSSL_ERR_SSL_MALLOC_FAILED );
+ }
+
+ ssl->out_ctr = (unsigned char *) malloc( len );
+ ssl->out_hdr = ssl->out_ctr + 8;
+ ssl->out_msg = ssl->out_ctr + 13;
+
+ if( ssl->out_ctr == NULL )
+ {
+ SSL_DEBUG_MSG( 1, ( "malloc(%d bytes) failed", len ) );
+ free( ssl-> in_ctr );
+ return( POLARSSL_ERR_SSL_MALLOC_FAILED );
+ }
+
+ memset( ssl-> in_ctr, 0, SSL_BUFFER_LEN );
+ memset( ssl->out_ctr, 0, SSL_BUFFER_LEN );
+
+ ssl->hostname = NULL;
+ ssl->hostname_len = 0;
+
+ md5_starts( &ssl->fin_md5 );
+ sha1_starts( &ssl->fin_sha1 );
+
+ return( 0 );
+}
+
+/*
+ * Reset an initialized and used SSL context for re-use while retaining
+ * all application-set variables, function pointers and data.
+ */
+void ssl_session_reset( ssl_context *ssl )
+{
+ ssl->state = SSL_HELLO_REQUEST;
+
+ ssl->in_offt = NULL;
+
+ ssl->in_msgtype = 0;
+ ssl->in_msglen = 0;
+ ssl->in_left = 0;
+
+ ssl->in_hslen = 0;
+ ssl->nb_zero = 0;
+
+ ssl->out_msgtype = 0;
+ ssl->out_msglen = 0;
+ ssl->out_left = 0;
+
+ ssl->do_crypt = 0;
+ ssl->pmslen = 0;
+ ssl->keylen = 0;
+ ssl->minlen = 0;
+ ssl->ivlen = 0;
+ ssl->maclen = 0;
+
+ memset( ssl->out_ctr, 0, SSL_BUFFER_LEN );
+ memset( ssl->in_ctr, 0, SSL_BUFFER_LEN );
+ memset( ssl->randbytes, 0, 64 );
+ memset( ssl->premaster, 0, 256 );
+ memset( ssl->iv_enc, 0, 16 );
+ memset( ssl->iv_dec, 0, 16 );
+ memset( ssl->mac_enc, 0, 32 );
+ memset( ssl->mac_dec, 0, 32 );
+ memset( ssl->ctx_enc, 0, 128 );
+ memset( ssl->ctx_dec, 0, 128 );
+
+ md5_starts( &ssl->fin_md5 );
+ sha1_starts( &ssl->fin_sha1 );
+}
+
+/*
+ * SSL set accessors
+ */
+void ssl_set_endpoint( ssl_context *ssl, int endpoint )
+{
+ ssl->endpoint = endpoint;
+}
+
+void ssl_set_authmode( ssl_context *ssl, int authmode )
+{
+ ssl->authmode = authmode;
+}
+
+void ssl_set_verify( ssl_context *ssl,
+ int (*f_vrfy)(void *, x509_cert *, int, int),
+ void *p_vrfy )
+{
+ ssl->f_vrfy = f_vrfy;
+ ssl->p_vrfy = p_vrfy;
+}
+
+void ssl_set_rng( ssl_context *ssl,
+ int (*f_rng)(void *, unsigned char *, size_t),
+ void *p_rng )
+{
+ ssl->f_rng = f_rng;
+ ssl->p_rng = p_rng;
+}
+
+void ssl_set_dbg( ssl_context *ssl,
+ void (*f_dbg)(void *, int, const char *),
+ void *p_dbg )
+{
+ ssl->f_dbg = f_dbg;
+ ssl->p_dbg = p_dbg;
+}
+
+void ssl_set_bio( ssl_context *ssl,
+ int (*f_recv)(void *, unsigned char *, size_t), void *p_recv,
+ int (*f_send)(void *, const unsigned char *, size_t), void *p_send )
+{
+ ssl->f_recv = f_recv;
+ ssl->f_send = f_send;
+ ssl->p_recv = p_recv;
+ ssl->p_send = p_send;
+}
+
+void ssl_set_scb( ssl_context *ssl,
+ int (*s_get)(ssl_context *),
+ int (*s_set)(ssl_context *) )
+{
+ ssl->s_get = s_get;
+ ssl->s_set = s_set;
+}
+
+void ssl_set_session( ssl_context *ssl, int resume, int timeout,
+ ssl_session *session )
+{
+ ssl->resume = resume;
+ ssl->timeout = timeout;
+ ssl->session = session;
+}
+
+void ssl_set_ciphersuites( ssl_context *ssl, int *ciphersuites )
+{
+ ssl->ciphersuites = ciphersuites;
+}
+
+void ssl_set_ca_chain( ssl_context *ssl, x509_cert *ca_chain,
+ x509_crl *ca_crl, const char *peer_cn )
+{
+ ssl->ca_chain = ca_chain;
+ ssl->ca_crl = ca_crl;
+ ssl->peer_cn = peer_cn;
+}
+
+void ssl_set_own_cert( ssl_context *ssl, x509_cert *own_cert,
+ rsa_context *rsa_key )
+{
+ ssl->own_cert = own_cert;
+ ssl->rsa_key = rsa_key;
+}
+
+#if defined(POLARSSL_PKCS11_C)
+void ssl_set_own_cert_pkcs11( ssl_context *ssl, x509_cert *own_cert,
+ pkcs11_context *pkcs11_key )
+{
+ ssl->own_cert = own_cert;
+ ssl->pkcs11_key = pkcs11_key;
+}
+#endif
+
+int ssl_set_dh_param( ssl_context *ssl, const char *dhm_P, const char *dhm_G )
+{
+ int ret;
+
+ if( ( ret = mpi_read_string( &ssl->dhm_ctx.P, 16, dhm_P ) ) != 0 )
+ {
+ SSL_DEBUG_RET( 1, "mpi_read_string", ret );
+ return( ret );
+ }
+
+ if( ( ret = mpi_read_string( &ssl->dhm_ctx.G, 16, dhm_G ) ) != 0 )
+ {
+ SSL_DEBUG_RET( 1, "mpi_read_string", ret );
+ return( ret );
+ }
+
+ return( 0 );
+}
+
+int ssl_set_dh_param_ctx( ssl_context *ssl, dhm_context *dhm_ctx )
+{
+ int ret;
+
+ if( ( ret = mpi_copy(&ssl->dhm_ctx.P, &dhm_ctx->P) ) != 0 )
+ {
+ SSL_DEBUG_RET( 1, "mpi_copy", ret );
+ return( ret );
+ }
+
+ if( ( ret = mpi_copy(&ssl->dhm_ctx.G, &dhm_ctx->G) ) != 0 )
+ {
+ SSL_DEBUG_RET( 1, "mpi_copy", ret );
+ return( ret );
+ }
+
+ return( 0 );
+}
+
+int ssl_set_hostname( ssl_context *ssl, const char *hostname )
+{
+ if( hostname == NULL )
+ return( POLARSSL_ERR_SSL_BAD_INPUT_DATA );
+
+ ssl->hostname_len = strlen( hostname );
+ ssl->hostname = (unsigned char *) malloc( ssl->hostname_len + 1 );
+
+ if( ssl->hostname == NULL )
+ return( POLARSSL_ERR_SSL_MALLOC_FAILED );
+
+ memcpy( ssl->hostname, (unsigned char *) hostname,
+ ssl->hostname_len );
+
+ ssl->hostname[ssl->hostname_len] = '\0';
+
+ return( 0 );
+}
+
+void ssl_set_max_version( ssl_context *ssl, int major, int minor )
+{
+ ssl->max_major_ver = major;
+ ssl->max_minor_ver = minor;
+}
+
+/*
+ * SSL get accessors
+ */
+size_t ssl_get_bytes_avail( const ssl_context *ssl )
+{
+ return( ssl->in_offt == NULL ? 0 : ssl->in_msglen );
+}
+
+int ssl_get_verify_result( const ssl_context *ssl )
+{
+ return( ssl->verify_result );
+}
+
+const char *ssl_get_ciphersuite_name( const int ciphersuite_id )
+{
+ switch( ciphersuite_id )
+ {
+#if defined(POLARSSL_ARC4_C)
+ case SSL_RSA_RC4_128_MD5:
+ return( "SSL-RSA-RC4-128-MD5" );
+
+ case SSL_RSA_RC4_128_SHA:
+ return( "SSL-RSA-RC4-128-SHA" );
+#endif
+
+#if defined(POLARSSL_DES_C)
+ case SSL_RSA_DES_168_SHA:
+ return( "SSL-RSA-DES-168-SHA" );
+
+ case SSL_EDH_RSA_DES_168_SHA:
+ return( "SSL-EDH-RSA-DES-168-SHA" );
+#endif
+
+#if defined(POLARSSL_AES_C)
+ case SSL_RSA_AES_128_SHA:
+ return( "SSL-RSA-AES-128-SHA" );
+
+ case SSL_EDH_RSA_AES_128_SHA:
+ return( "SSL-EDH-RSA-AES-128-SHA" );
+
+ case SSL_RSA_AES_256_SHA:
+ return( "SSL-RSA-AES-256-SHA" );
+
+ case SSL_EDH_RSA_AES_256_SHA:
+ return( "SSL-EDH-RSA-AES-256-SHA" );
+#endif
+
+#if defined(POLARSSL_CAMELLIA_C)
+ case SSL_RSA_CAMELLIA_128_SHA:
+ return( "SSL-RSA-CAMELLIA-128-SHA" );
+
+ case SSL_EDH_RSA_CAMELLIA_128_SHA:
+ return( "SSL-EDH-RSA-CAMELLIA-128-SHA" );
+
+ case SSL_RSA_CAMELLIA_256_SHA:
+ return( "SSL-RSA-CAMELLIA-256-SHA" );
+
+ case SSL_EDH_RSA_CAMELLIA_256_SHA:
+ return( "SSL-EDH-RSA-CAMELLIA-256-SHA" );
+#endif
+
+ default:
+ break;
+ }
+
+ return( "unknown" );
+}
+
+int ssl_get_ciphersuite_id( const char *ciphersuite_name )
+{
+#if defined(POLARSSL_ARC4_C)
+ if (0 == strcasecmp(ciphersuite_name, "SSL-RSA-RC4-128-MD5"))
+ return( SSL_RSA_RC4_128_MD5 );
+ if (0 == strcasecmp(ciphersuite_name, "SSL-RSA-RC4-128-SHA"))
+ return( SSL_RSA_RC4_128_SHA );
+#endif
+
+#if defined(POLARSSL_DES_C)
+ if (0 == strcasecmp(ciphersuite_name, "SSL-RSA-DES-168-SHA"))
+ return( SSL_RSA_DES_168_SHA );
+ if (0 == strcasecmp(ciphersuite_name, "SSL-EDH-RSA-DES-168-SHA"))
+ return( SSL_EDH_RSA_DES_168_SHA );
+#endif
+
+#if defined(POLARSSL_AES_C)
+ if (0 == strcasecmp(ciphersuite_name, "SSL-RSA-AES-128-SHA"))
+ return( SSL_RSA_AES_128_SHA );
+ if (0 == strcasecmp(ciphersuite_name, "SSL-EDH-RSA-AES-128-SHA"))
+ return( SSL_EDH_RSA_AES_128_SHA );
+ if (0 == strcasecmp(ciphersuite_name, "SSL-RSA-AES-256-SHA"))
+ return( SSL_RSA_AES_256_SHA );
+ if (0 == strcasecmp(ciphersuite_name, "SSL-EDH-RSA-AES-256-SHA"))
+ return( SSL_EDH_RSA_AES_256_SHA );
+#endif
+
+#if defined(POLARSSL_CAMELLIA_C)
+ if (0 == strcasecmp(ciphersuite_name, "SSL-RSA-CAMELLIA-128-SHA"))
+ return( SSL_RSA_CAMELLIA_128_SHA );
+ if (0 == strcasecmp(ciphersuite_name, "SSL-EDH-RSA-CAMELLIA-128-SHA"))
+ return( SSL_EDH_RSA_CAMELLIA_128_SHA );
+ if (0 == strcasecmp(ciphersuite_name, "SSL-RSA-CAMELLIA-256-SHA"))
+ return( SSL_RSA_CAMELLIA_256_SHA );
+ if (0 == strcasecmp(ciphersuite_name, "SSL-EDH-RSA-CAMELLIA-256-SHA"))
+ return( SSL_EDH_RSA_CAMELLIA_256_SHA );
+#endif
+
+ return( 0 );
+}
+
+const char *ssl_get_ciphersuite( const ssl_context *ssl )
+{
+ return ssl_get_ciphersuite_name( ssl->session->ciphersuite );
+}
+
+const char *ssl_get_version( const ssl_context *ssl )
+{
+ switch( ssl->minor_ver )
+ {
+ case SSL_MINOR_VERSION_0:
+ return( "SSLv3.0" );
+
+ case SSL_MINOR_VERSION_1:
+ return( "TLSv1.0" );
+
+ case SSL_MINOR_VERSION_2:
+ return( "TLSv1.1" );
+
+ default:
+ break;
+ }
+ return( "unknown" );
+}
+
+int ssl_default_ciphersuites[] =
+{
+#if defined(POLARSSL_DHM_C)
+#if defined(POLARSSL_AES_C)
+ SSL_EDH_RSA_AES_128_SHA,
+ SSL_EDH_RSA_AES_256_SHA,
+#endif
+#if defined(POLARSSL_CAMELLIA_C)
+ SSL_EDH_RSA_CAMELLIA_128_SHA,
+ SSL_EDH_RSA_CAMELLIA_256_SHA,
+#endif
+#if defined(POLARSSL_DES_C)
+ SSL_EDH_RSA_DES_168_SHA,
+#endif
+#endif
+
+#if defined(POLARSSL_AES_C)
+ SSL_RSA_AES_256_SHA,
+#endif
+#if defined(POLARSSL_CAMELLIA_C)
+ SSL_RSA_CAMELLIA_256_SHA,
+#endif
+#if defined(POLARSSL_AES_C)
+ SSL_RSA_AES_128_SHA,
+#endif
+#if defined(POLARSSL_CAMELLIA_C)
+ SSL_RSA_CAMELLIA_128_SHA,
+#endif
+#if defined(POLARSSL_DES_C)
+ SSL_RSA_DES_168_SHA,
+#endif
+#if defined(POLARSSL_ARC4_C)
+ SSL_RSA_RC4_128_SHA,
+ SSL_RSA_RC4_128_MD5,
+#endif
+ 0
+};
+
+/*
+ * Perform the SSL handshake
+ */
+int ssl_handshake( ssl_context *ssl )
+{
+ int ret = POLARSSL_ERR_SSL_FEATURE_UNAVAILABLE;
+
+ SSL_DEBUG_MSG( 2, ( "=> handshake" ) );
+
+#if defined(POLARSSL_SSL_CLI_C)
+ if( ssl->endpoint == SSL_IS_CLIENT )
+ ret = ssl_handshake_client( ssl );
+#endif
+
+#if defined(POLARSSL_SSL_SRV_C)
+ if( ssl->endpoint == SSL_IS_SERVER )
+ ret = ssl_handshake_server( ssl );
+#endif
+
+ SSL_DEBUG_MSG( 2, ( "<= handshake" ) );
+
+ return( ret );
+}
+
+/*
+ * Receive application data decrypted from the SSL layer
+ */
+int ssl_read( ssl_context *ssl, unsigned char *buf, size_t len )
+{
+ int ret;
+ size_t n;
+
+ SSL_DEBUG_MSG( 2, ( "=> read" ) );
+
+ if( ssl->state != SSL_HANDSHAKE_OVER )
+ {
+ if( ( ret = ssl_handshake( ssl ) ) != 0 )
+ {
+ SSL_DEBUG_RET( 1, "ssl_handshake", ret );
+ return( ret );
+ }
+ }
+
+ if( ssl->in_offt == NULL )
+ {
+ if( ( ret = ssl_read_record( ssl ) ) != 0 )
+ {
+ if( ret == POLARSSL_ERR_SSL_CONN_EOF )
+ return( 0 );
+
+ SSL_DEBUG_RET( 1, "ssl_read_record", ret );
+ return( ret );
+ }
+
+ if( ssl->in_msglen == 0 &&
+ ssl->in_msgtype == SSL_MSG_APPLICATION_DATA )
+ {
+ /*
+ * OpenSSL sends empty messages to randomize the IV
+ */
+ if( ( ret = ssl_read_record( ssl ) ) != 0 )
+ {
+ if( ret == POLARSSL_ERR_SSL_CONN_EOF )
+ return( 0 );
+
+ SSL_DEBUG_RET( 1, "ssl_read_record", ret );
+ return( ret );
+ }
+ }
+
+ if( ssl->in_msgtype != SSL_MSG_APPLICATION_DATA )
+ {
+ SSL_DEBUG_MSG( 1, ( "bad application data message" ) );
+ return( POLARSSL_ERR_SSL_UNEXPECTED_MESSAGE );
+ }
+
+ ssl->in_offt = ssl->in_msg;
+ }
+
+ n = ( len < ssl->in_msglen )
+ ? len : ssl->in_msglen;
+
+ memcpy( buf, ssl->in_offt, n );
+ ssl->in_msglen -= n;
+
+ if( ssl->in_msglen == 0 )
+ /* all bytes consumed */
+ ssl->in_offt = NULL;
+ else
+ /* more data available */
+ ssl->in_offt += n;
+
+ SSL_DEBUG_MSG( 2, ( "<= read" ) );
+
+ return( (int) n );
+}
+
+/*
+ * Send application data to be encrypted by the SSL layer
+ */
+int ssl_write( ssl_context *ssl, const unsigned char *buf, size_t len )
+{
+ int ret;
+ size_t n;
+
+ SSL_DEBUG_MSG( 2, ( "=> write" ) );
+
+ if( ssl->state != SSL_HANDSHAKE_OVER )
+ {
+ if( ( ret = ssl_handshake( ssl ) ) != 0 )
+ {
+ SSL_DEBUG_RET( 1, "ssl_handshake", ret );
+ return( ret );
+ }
+ }
+
+ n = ( len < SSL_MAX_CONTENT_LEN )
+ ? len : SSL_MAX_CONTENT_LEN;
+
+ if( ssl->out_left != 0 )
+ {
+ if( ( ret = ssl_flush_output( ssl ) ) != 0 )
+ {
+ SSL_DEBUG_RET( 1, "ssl_flush_output", ret );
+ return( ret );
+ }
+ }
+ else
+ {
+ ssl->out_msglen = n;
+ ssl->out_msgtype = SSL_MSG_APPLICATION_DATA;
+ memcpy( ssl->out_msg, buf, n );
+
+ if( ( ret = ssl_write_record( ssl ) ) != 0 )
+ {
+ SSL_DEBUG_RET( 1, "ssl_write_record", ret );
+ return( ret );
+ }
+ }
+
+ SSL_DEBUG_MSG( 2, ( "<= write" ) );
+
+ return( (int) n );
+}
+
+/*
+ * Notify the peer that the connection is being closed
+ */
+int ssl_close_notify( ssl_context *ssl )
+{
+ int ret;
+
+ SSL_DEBUG_MSG( 2, ( "=> write close notify" ) );
+
+ if( ( ret = ssl_flush_output( ssl ) ) != 0 )
+ {
+ SSL_DEBUG_RET( 1, "ssl_flush_output", ret );
+ return( ret );
+ }
+
+ if( ssl->state == SSL_HANDSHAKE_OVER )
+ {
+ ssl->out_msgtype = SSL_MSG_ALERT;
+ ssl->out_msglen = 2;
+ ssl->out_msg[0] = SSL_ALERT_LEVEL_WARNING;
+ ssl->out_msg[1] = SSL_ALERT_MSG_CLOSE_NOTIFY;
+
+ if( ( ret = ssl_write_record( ssl ) ) != 0 )
+ {
+ SSL_DEBUG_RET( 1, "ssl_write_record", ret );
+ return( ret );
+ }
+ }
+
+ SSL_DEBUG_MSG( 2, ( "<= write close notify" ) );
+
+ return( ret );
+}
+
+/*
+ * Free an SSL context
+ */
+void ssl_free( ssl_context *ssl )
+{
+ SSL_DEBUG_MSG( 2, ( "=> free" ) );
+
+ if( ssl->peer_cert != NULL )
+ {
+ x509_free( ssl->peer_cert );
+ memset( ssl->peer_cert, 0, sizeof( x509_cert ) );
+ free( ssl->peer_cert );
+ }
+
+ if( ssl->out_ctr != NULL )
+ {
+ memset( ssl->out_ctr, 0, SSL_BUFFER_LEN );
+ free( ssl->out_ctr );
+ }
+
+ if( ssl->in_ctr != NULL )
+ {
+ memset( ssl->in_ctr, 0, SSL_BUFFER_LEN );
+ free( ssl->in_ctr );
+ }
+
+#if defined(POLARSSL_DHM_C)
+ dhm_free( &ssl->dhm_ctx );
+#endif
+
+ if ( ssl->hostname != NULL)
+ {
+ memset( ssl->hostname, 0, ssl->hostname_len );
+ free( ssl->hostname );
+ ssl->hostname_len = 0;
+ }
+
+ SSL_DEBUG_MSG( 2, ( "<= free" ) );
+
+ /* Actually free after last debug message */
+ memset( ssl, 0, sizeof( ssl_context ) );
+}
+
+#endif
--- /dev/null
+/*
+ * Portable interface to the CPU cycle counter
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "polarssl/config.h"
+
+#if defined(POLARSSL_TIMING_C)
+
+#include "polarssl/timing.h"
+
+#if defined(_WIN32)
+
+#include <windows.h>
+#include <winbase.h>
+
+struct _hr_time
+{
+ LARGE_INTEGER start;
+};
+
+#else
+
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/time.h>
+#include <signal.h>
+#include <time.h>
+
+struct _hr_time
+{
+ struct timeval start;
+};
+
+#endif
+
+#if defined(POLARSSL_HAVE_ASM) && \
+ (defined(_MSC_VER) && defined(_M_IX86)) || defined(__WATCOMC__)
+
+unsigned long hardclock( void )
+{
+ unsigned long tsc;
+ __asm rdtsc
+ __asm mov [tsc], eax
+ return( tsc );
+}
+
+#else
+#if defined(POLARSSL_HAVE_ASM) && defined(__GNUC__) && defined(__i386__)
+
+unsigned long hardclock( void )
+{
+ unsigned long lo, hi;
+ asm( "rdtsc" : "=a" (lo), "=d" (hi) );
+ return( lo );
+}
+
+#else
+#if defined(POLARSSL_HAVE_ASM) && defined(__GNUC__) && \
+ (defined(__amd64__) || defined(__x86_64__))
+
+unsigned long hardclock( void )
+{
+ unsigned long lo, hi;
+ asm( "rdtsc" : "=a" (lo), "=d" (hi) );
+ return( lo | (hi << 32) );
+}
+
+#else
+#if defined(POLARSSL_HAVE_ASM) && defined(__GNUC__) && \
+ (defined(__powerpc__) || defined(__ppc__))
+
+unsigned long hardclock( void )
+{
+ unsigned long tbl, tbu0, tbu1;
+
+ do
+ {
+ asm( "mftbu %0" : "=r" (tbu0) );
+ asm( "mftb %0" : "=r" (tbl ) );
+ asm( "mftbu %0" : "=r" (tbu1) );
+ }
+ while( tbu0 != tbu1 );
+
+ return( tbl );
+}
+
+#else
+#if defined(POLARSSL_HAVE_ASM) && defined(__GNUC__) && defined(__sparc__)
+
+unsigned long hardclock( void )
+{
+ unsigned long tick;
+ asm( ".byte 0x83, 0x41, 0x00, 0x00" );
+ asm( "mov %%g1, %0" : "=r" (tick) );
+ return( tick );
+}
+
+#else
+#if defined(POLARSSL_HAVE_ASM) && defined(__GNUC__) && defined(__alpha__)
+
+unsigned long hardclock( void )
+{
+ unsigned long cc;
+ asm( "rpcc %0" : "=r" (cc) );
+ return( cc & 0xFFFFFFFF );
+}
+
+#else
+#if defined(POLARSSL_HAVE_ASM) && defined(__GNUC__) && defined(__ia64__)
+
+unsigned long hardclock( void )
+{
+ unsigned long itc;
+ asm( "mov %0 = ar.itc" : "=r" (itc) );
+ return( itc );
+}
+
+#else
+#if defined(_MSC_VER)
+
+unsigned long hardclock( void )
+{
+ LARGE_INTEGER offset;
+
+ QueryPerformanceCounter( &offset );
+
+ return (unsigned long)( offset.QuadPart );
+}
+
+#else
+
+static int hardclock_init = 0;
+static struct timeval tv_init;
+
+unsigned long hardclock( void )
+{
+ struct timeval tv_cur;
+
+ if( hardclock_init == 0 )
+ {
+ gettimeofday( &tv_init, NULL );
+ hardclock_init = 1;
+ }
+
+ gettimeofday( &tv_cur, NULL );
+ return( ( tv_cur.tv_sec - tv_init.tv_sec ) * 1000000
+ + ( tv_cur.tv_usec - tv_init.tv_usec ) );
+}
+
+#endif /* generic */
+#endif /* WIN32 */
+#endif /* IA-64 */
+#endif /* Alpha */
+#endif /* SPARC8 */
+#endif /* PowerPC */
+#endif /* AMD64 */
+#endif /* i586+ */
+
+volatile int alarmed = 0;
+
+#if defined(_WIN32)
+
+unsigned long get_timer( struct hr_time *val, int reset )
+{
+ unsigned long delta;
+ LARGE_INTEGER offset, hfreq;
+ struct _hr_time *t = (struct _hr_time *) val;
+
+ QueryPerformanceCounter( &offset );
+ QueryPerformanceFrequency( &hfreq );
+
+ delta = (unsigned long)( ( 1000 *
+ ( offset.QuadPart - t->start.QuadPart ) ) /
+ hfreq.QuadPart );
+
+ if( reset )
+ QueryPerformanceCounter( &t->start );
+
+ return( delta );
+}
+
+DWORD WINAPI TimerProc( LPVOID uElapse )
+{
+ Sleep( (DWORD) uElapse );
+ alarmed = 1;
+ return( TRUE );
+}
+
+void set_alarm( int seconds )
+{
+ DWORD ThreadId;
+
+ alarmed = 0;
+ CloseHandle( CreateThread( NULL, 0, TimerProc,
+ (LPVOID) ( seconds * 1000 ), 0, &ThreadId ) );
+}
+
+void m_sleep( int milliseconds )
+{
+ Sleep( milliseconds );
+}
+
+#else
+
+unsigned long get_timer( struct hr_time *val, int reset )
+{
+ unsigned long delta;
+ struct timeval offset;
+ struct _hr_time *t = (struct _hr_time *) val;
+
+ gettimeofday( &offset, NULL );
+
+ delta = ( offset.tv_sec - t->start.tv_sec ) * 1000
+ + ( offset.tv_usec - t->start.tv_usec ) / 1000;
+
+ if( reset )
+ {
+ t->start.tv_sec = offset.tv_sec;
+ t->start.tv_usec = offset.tv_usec;
+ }
+
+ return( delta );
+}
+
+static void sighandler( int signum )
+{
+ alarmed = 1;
+ signal( signum, sighandler );
+}
+
+void set_alarm( int seconds )
+{
+ alarmed = 0;
+ signal( SIGALRM, sighandler );
+ alarm( seconds );
+}
+
+void m_sleep( int milliseconds )
+{
+ struct timeval tv;
+
+ tv.tv_sec = milliseconds / 1000;
+ tv.tv_usec = milliseconds * 1000;
+
+ select( 0, NULL, NULL, NULL, &tv );
+}
+
+#endif
+
+#endif
--- /dev/null
+/*
+ * Version information
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "polarssl/config.h"
+
+#if defined(POLARSSL_VERSION_C)
+
+#include "polarssl/version.h"
+#include <string.h>
+
+const char version[] = POLARSSL_VERSION_STRING;
+
+unsigned int version_get_number()
+{
+ return POLARSSL_VERSION_NUMBER;
+}
+
+void version_get_string( char *string )
+{
+ memcpy( string, POLARSSL_VERSION_STRING, sizeof( POLARSSL_VERSION_STRING ) );
+}
+
+void version_get_string_full( char *string )
+{
+ memcpy( string, POLARSSL_VERSION_STRING_FULL, sizeof( POLARSSL_VERSION_STRING_FULL ) );
+}
+
+#endif /* POLARSSL_VERSION_C */
--- /dev/null
+/*
+ * X.509 certificate and private key decoding
+ *
+ * Copyright (C) 2006-2011, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+/*
+ * The ITU-T X.509 standard defines a certificat format for PKI.
+ *
+ * http://www.ietf.org/rfc/rfc2459.txt
+ * http://www.ietf.org/rfc/rfc3279.txt
+ *
+ * ftp://ftp.rsasecurity.com/pub/pkcs/ascii/pkcs-1v2.asc
+ *
+ * http://www.itu.int/ITU-T/studygroups/com17/languages/X.680-0207.pdf
+ * http://www.itu.int/ITU-T/studygroups/com17/languages/X.690-0207.pdf
+ */
+
+#include "polarssl/config.h"
+
+#if defined(POLARSSL_X509_PARSE_C)
+
+#include "polarssl/x509.h"
+#include "polarssl/asn1.h"
+#include "polarssl/pem.h"
+#include "polarssl/des.h"
+#include "polarssl/md2.h"
+#include "polarssl/md4.h"
+#include "polarssl/md5.h"
+#include "polarssl/sha1.h"
+#include "polarssl/sha2.h"
+#include "polarssl/sha4.h"
+#include "polarssl/dhm.h"
+
+#include <string.h>
+#include <stdlib.h>
+#if defined(_WIN32)
+#include <windows.h>
+#else
+#include <time.h>
+#endif
+
+#if defined(POLARSSL_FS_IO)
+#include <stdio.h>
+#endif
+
+/*
+ * Version ::= INTEGER { v1(0), v2(1), v3(2) }
+ */
+static int x509_get_version( unsigned char **p,
+ const unsigned char *end,
+ int *ver )
+{
+ int ret;
+ size_t len;
+
+ if( ( ret = asn1_get_tag( p, end, &len,
+ ASN1_CONTEXT_SPECIFIC | ASN1_CONSTRUCTED | 0 ) ) != 0 )
+ {
+ if( ret == POLARSSL_ERR_ASN1_UNEXPECTED_TAG )
+ {
+ *ver = 0;
+ return( 0 );
+ }
+
+ return( ret );
+ }
+
+ end = *p + len;
+
+ if( ( ret = asn1_get_int( p, end, ver ) ) != 0 )
+ return( POLARSSL_ERR_X509_CERT_INVALID_VERSION + ret );
+
+ if( *p != end )
+ return( POLARSSL_ERR_X509_CERT_INVALID_VERSION +
+ POLARSSL_ERR_ASN1_LENGTH_MISMATCH );
+
+ return( 0 );
+}
+
+/*
+ * Version ::= INTEGER { v1(0), v2(1) }
+ */
+static int x509_crl_get_version( unsigned char **p,
+ const unsigned char *end,
+ int *ver )
+{
+ int ret;
+
+ if( ( ret = asn1_get_int( p, end, ver ) ) != 0 )
+ {
+ if( ret == POLARSSL_ERR_ASN1_UNEXPECTED_TAG )
+ {
+ *ver = 0;
+ return( 0 );
+ }
+
+ return( POLARSSL_ERR_X509_CERT_INVALID_VERSION + ret );
+ }
+
+ return( 0 );
+}
+
+/*
+ * CertificateSerialNumber ::= INTEGER
+ */
+static int x509_get_serial( unsigned char **p,
+ const unsigned char *end,
+ x509_buf *serial )
+{
+ int ret;
+
+ if( ( end - *p ) < 1 )
+ return( POLARSSL_ERR_X509_CERT_INVALID_SERIAL +
+ POLARSSL_ERR_ASN1_OUT_OF_DATA );
+
+ if( **p != ( ASN1_CONTEXT_SPECIFIC | ASN1_PRIMITIVE | 2 ) &&
+ **p != ASN1_INTEGER )
+ return( POLARSSL_ERR_X509_CERT_INVALID_SERIAL +
+ POLARSSL_ERR_ASN1_UNEXPECTED_TAG );
+
+ serial->tag = *(*p)++;
+
+ if( ( ret = asn1_get_len( p, end, &serial->len ) ) != 0 )
+ return( POLARSSL_ERR_X509_CERT_INVALID_SERIAL + ret );
+
+ serial->p = *p;
+ *p += serial->len;
+
+ return( 0 );
+}
+
+/*
+ * AlgorithmIdentifier ::= SEQUENCE {
+ * algorithm OBJECT IDENTIFIER,
+ * parameters ANY DEFINED BY algorithm OPTIONAL }
+ */
+static int x509_get_alg( unsigned char **p,
+ const unsigned char *end,
+ x509_buf *alg )
+{
+ int ret;
+ size_t len;
+
+ if( ( ret = asn1_get_tag( p, end, &len,
+ ASN1_CONSTRUCTED | ASN1_SEQUENCE ) ) != 0 )
+ return( POLARSSL_ERR_X509_CERT_INVALID_ALG + ret );
+
+ end = *p + len;
+ alg->tag = **p;
+
+ if( ( ret = asn1_get_tag( p, end, &alg->len, ASN1_OID ) ) != 0 )
+ return( POLARSSL_ERR_X509_CERT_INVALID_ALG + ret );
+
+ alg->p = *p;
+ *p += alg->len;
+
+ if( *p == end )
+ return( 0 );
+
+ /*
+ * assume the algorithm parameters must be NULL
+ */
+ if( ( ret = asn1_get_tag( p, end, &len, ASN1_NULL ) ) != 0 )
+ return( POLARSSL_ERR_X509_CERT_INVALID_ALG + ret );
+
+ if( *p != end )
+ return( POLARSSL_ERR_X509_CERT_INVALID_ALG +
+ POLARSSL_ERR_ASN1_LENGTH_MISMATCH );
+
+ return( 0 );
+}
+
+/*
+ * AttributeTypeAndValue ::= SEQUENCE {
+ * type AttributeType,
+ * value AttributeValue }
+ *
+ * AttributeType ::= OBJECT IDENTIFIER
+ *
+ * AttributeValue ::= ANY DEFINED BY AttributeType
+ */
+static int x509_get_attr_type_value( unsigned char **p,
+ const unsigned char *end,
+ x509_name *cur )
+{
+ int ret;
+ size_t len;
+ x509_buf *oid;
+ x509_buf *val;
+
+ if( ( ret = asn1_get_tag( p, end, &len,
+ ASN1_CONSTRUCTED | ASN1_SEQUENCE ) ) != 0 )
+ return( POLARSSL_ERR_X509_CERT_INVALID_NAME + ret );
+
+ oid = &cur->oid;
+ oid->tag = **p;
+
+ if( ( ret = asn1_get_tag( p, end, &oid->len, ASN1_OID ) ) != 0 )
+ return( POLARSSL_ERR_X509_CERT_INVALID_NAME + ret );
+
+ oid->p = *p;
+ *p += oid->len;
+
+ if( ( end - *p ) < 1 )
+ return( POLARSSL_ERR_X509_CERT_INVALID_NAME +
+ POLARSSL_ERR_ASN1_OUT_OF_DATA );
+
+ if( **p != ASN1_BMP_STRING && **p != ASN1_UTF8_STRING &&
+ **p != ASN1_T61_STRING && **p != ASN1_PRINTABLE_STRING &&
+ **p != ASN1_IA5_STRING && **p != ASN1_UNIVERSAL_STRING )
+ return( POLARSSL_ERR_X509_CERT_INVALID_NAME +
+ POLARSSL_ERR_ASN1_UNEXPECTED_TAG );
+
+ val = &cur->val;
+ val->tag = *(*p)++;
+
+ if( ( ret = asn1_get_len( p, end, &val->len ) ) != 0 )
+ return( POLARSSL_ERR_X509_CERT_INVALID_NAME + ret );
+
+ val->p = *p;
+ *p += val->len;
+
+ cur->next = NULL;
+
+ return( 0 );
+}
+
+/*
+ * RelativeDistinguishedName ::=
+ * SET OF AttributeTypeAndValue
+ *
+ * AttributeTypeAndValue ::= SEQUENCE {
+ * type AttributeType,
+ * value AttributeValue }
+ *
+ * AttributeType ::= OBJECT IDENTIFIER
+ *
+ * AttributeValue ::= ANY DEFINED BY AttributeType
+ */
+static int x509_get_name( unsigned char **p,
+ const unsigned char *end,
+ x509_name *cur )
+{
+ int ret;
+ size_t len;
+ const unsigned char *end2;
+ x509_name *use;
+
+ if( ( ret = asn1_get_tag( p, end, &len,
+ ASN1_CONSTRUCTED | ASN1_SET ) ) != 0 )
+ return( POLARSSL_ERR_X509_CERT_INVALID_NAME + ret );
+
+ end2 = end;
+ end = *p + len;
+ use = cur;
+
+ do
+ {
+ if( ( ret = x509_get_attr_type_value( p, end, use ) ) != 0 )
+ return( ret );
+
+ if( *p != end )
+ {
+ use->next = (x509_name *) malloc(
+ sizeof( x509_name ) );
+
+ if( use->next == NULL )
+ return( POLARSSL_ERR_X509_MALLOC_FAILED );
+
+ memset( use->next, 0, sizeof( x509_name ) );
+
+ use = use->next;
+ }
+ }
+ while( *p != end );
+
+ /*
+ * recurse until end of SEQUENCE is reached
+ */
+ if( *p == end2 )
+ return( 0 );
+
+ cur->next = (x509_name *) malloc(
+ sizeof( x509_name ) );
+
+ if( cur->next == NULL )
+ return( POLARSSL_ERR_X509_MALLOC_FAILED );
+
+ return( x509_get_name( p, end2, cur->next ) );
+}
+
+/*
+ * Time ::= CHOICE {
+ * utcTime UTCTime,
+ * generalTime GeneralizedTime }
+ */
+static int x509_get_time( unsigned char **p,
+ const unsigned char *end,
+ x509_time *time )
+{
+ int ret;
+ size_t len;
+ char date[64];
+ unsigned char tag;
+
+ if( ( end - *p ) < 1 )
+ return( POLARSSL_ERR_X509_CERT_INVALID_DATE +
+ POLARSSL_ERR_ASN1_OUT_OF_DATA );
+
+ tag = **p;
+
+ if ( tag == ASN1_UTC_TIME )
+ {
+ (*p)++;
+ ret = asn1_get_len( p, end, &len );
+
+ if( ret != 0 )
+ return( POLARSSL_ERR_X509_CERT_INVALID_DATE + ret );
+
+ memset( date, 0, sizeof( date ) );
+ memcpy( date, *p, ( len < sizeof( date ) - 1 ) ?
+ len : sizeof( date ) - 1 );
+
+ if( sscanf( date, "%2d%2d%2d%2d%2d%2d",
+ &time->year, &time->mon, &time->day,
+ &time->hour, &time->min, &time->sec ) < 5 )
+ return( POLARSSL_ERR_X509_CERT_INVALID_DATE );
+
+ time->year += 100 * ( time->year < 50 );
+ time->year += 1900;
+
+ *p += len;
+
+ return( 0 );
+ }
+ else if ( tag == ASN1_GENERALIZED_TIME )
+ {
+ (*p)++;
+ ret = asn1_get_len( p, end, &len );
+
+ if( ret != 0 )
+ return( POLARSSL_ERR_X509_CERT_INVALID_DATE + ret );
+
+ memset( date, 0, sizeof( date ) );
+ memcpy( date, *p, ( len < sizeof( date ) - 1 ) ?
+ len : sizeof( date ) - 1 );
+
+ if( sscanf( date, "%4d%2d%2d%2d%2d%2d",
+ &time->year, &time->mon, &time->day,
+ &time->hour, &time->min, &time->sec ) < 5 )
+ return( POLARSSL_ERR_X509_CERT_INVALID_DATE );
+
+ *p += len;
+
+ return( 0 );
+ }
+ else
+ return( POLARSSL_ERR_X509_CERT_INVALID_DATE + POLARSSL_ERR_ASN1_UNEXPECTED_TAG );
+}
+
+
+/*
+ * Validity ::= SEQUENCE {
+ * notBefore Time,
+ * notAfter Time }
+ */
+static int x509_get_dates( unsigned char **p,
+ const unsigned char *end,
+ x509_time *from,
+ x509_time *to )
+{
+ int ret;
+ size_t len;
+
+ if( ( ret = asn1_get_tag( p, end, &len,
+ ASN1_CONSTRUCTED | ASN1_SEQUENCE ) ) != 0 )
+ return( POLARSSL_ERR_X509_CERT_INVALID_DATE + ret );
+
+ end = *p + len;
+
+ if( ( ret = x509_get_time( p, end, from ) ) != 0 )
+ return( ret );
+
+ if( ( ret = x509_get_time( p, end, to ) ) != 0 )
+ return( ret );
+
+ if( *p != end )
+ return( POLARSSL_ERR_X509_CERT_INVALID_DATE +
+ POLARSSL_ERR_ASN1_LENGTH_MISMATCH );
+
+ return( 0 );
+}
+
+/*
+ * SubjectPublicKeyInfo ::= SEQUENCE {
+ * algorithm AlgorithmIdentifier,
+ * subjectPublicKey BIT STRING }
+ */
+static int x509_get_pubkey( unsigned char **p,
+ const unsigned char *end,
+ x509_buf *pk_alg_oid,
+ mpi *N, mpi *E )
+{
+ int ret, can_handle;
+ size_t len;
+ unsigned char *end2;
+
+ if( ( ret = x509_get_alg( p, end, pk_alg_oid ) ) != 0 )
+ return( ret );
+
+ /*
+ * only RSA public keys handled at this time
+ */
+ can_handle = 0;
+
+ if( pk_alg_oid->len == 9 &&
+ memcmp( pk_alg_oid->p, OID_PKCS1_RSA, 9 ) == 0 )
+ can_handle = 1;
+
+ if( pk_alg_oid->len == 9 &&
+ memcmp( pk_alg_oid->p, OID_PKCS1, 8 ) == 0 )
+ {
+ if( pk_alg_oid->p[8] >= 2 && pk_alg_oid->p[8] <= 5 )
+ can_handle = 1;
+
+ if ( pk_alg_oid->p[8] >= 11 && pk_alg_oid->p[8] <= 14 )
+ can_handle = 1;
+ }
+
+ if( pk_alg_oid->len == 5 &&
+ memcmp( pk_alg_oid->p, OID_RSA_SHA_OBS, 5 ) == 0 )
+ can_handle = 1;
+
+ if( can_handle == 0 )
+ return( POLARSSL_ERR_X509_UNKNOWN_PK_ALG );
+
+ if( ( ret = asn1_get_tag( p, end, &len, ASN1_BIT_STRING ) ) != 0 )
+ return( POLARSSL_ERR_X509_CERT_INVALID_PUBKEY + ret );
+
+ if( ( end - *p ) < 1 )
+ return( POLARSSL_ERR_X509_CERT_INVALID_PUBKEY +
+ POLARSSL_ERR_ASN1_OUT_OF_DATA );
+
+ end2 = *p + len;
+
+ if( *(*p)++ != 0 )
+ return( POLARSSL_ERR_X509_CERT_INVALID_PUBKEY );
+
+ /*
+ * RSAPublicKey ::= SEQUENCE {
+ * modulus INTEGER, -- n
+ * publicExponent INTEGER -- e
+ * }
+ */
+ if( ( ret = asn1_get_tag( p, end2, &len,
+ ASN1_CONSTRUCTED | ASN1_SEQUENCE ) ) != 0 )
+ return( POLARSSL_ERR_X509_CERT_INVALID_PUBKEY + ret );
+
+ if( *p + len != end2 )
+ return( POLARSSL_ERR_X509_CERT_INVALID_PUBKEY +
+ POLARSSL_ERR_ASN1_LENGTH_MISMATCH );
+
+ if( ( ret = asn1_get_mpi( p, end2, N ) ) != 0 ||
+ ( ret = asn1_get_mpi( p, end2, E ) ) != 0 )
+ return( POLARSSL_ERR_X509_CERT_INVALID_PUBKEY + ret );
+
+ if( *p != end )
+ return( POLARSSL_ERR_X509_CERT_INVALID_PUBKEY +
+ POLARSSL_ERR_ASN1_LENGTH_MISMATCH );
+
+ return( 0 );
+}
+
+static int x509_get_sig( unsigned char **p,
+ const unsigned char *end,
+ x509_buf *sig )
+{
+ int ret;
+ size_t len;
+
+ sig->tag = **p;
+
+ if( ( ret = asn1_get_tag( p, end, &len, ASN1_BIT_STRING ) ) != 0 )
+ return( POLARSSL_ERR_X509_CERT_INVALID_SIGNATURE + ret );
+
+
+ if( --len < 1 || *(*p)++ != 0 )
+ return( POLARSSL_ERR_X509_CERT_INVALID_SIGNATURE );
+
+ sig->len = len;
+ sig->p = *p;
+
+ *p += len;
+
+ return( 0 );
+}
+
+/*
+ * X.509 v2/v3 unique identifier (not parsed)
+ */
+static int x509_get_uid( unsigned char **p,
+ const unsigned char *end,
+ x509_buf *uid, int n )
+{
+ int ret;
+
+ if( *p == end )
+ return( 0 );
+
+ uid->tag = **p;
+
+ if( ( ret = asn1_get_tag( p, end, &uid->len,
+ ASN1_CONTEXT_SPECIFIC | ASN1_CONSTRUCTED | n ) ) != 0 )
+ {
+ if( ret == POLARSSL_ERR_ASN1_UNEXPECTED_TAG )
+ return( 0 );
+
+ return( ret );
+ }
+
+ uid->p = *p;
+ *p += uid->len;
+
+ return( 0 );
+}
+
+/*
+ * X.509 Extensions (No parsing of extensions, pointer should
+ * be either manually updated or extensions should be parsed!
+ */
+static int x509_get_ext( unsigned char **p,
+ const unsigned char *end,
+ x509_buf *ext, int tag )
+{
+ int ret;
+ size_t len;
+
+ if( *p == end )
+ return( 0 );
+
+ ext->tag = **p;
+
+ if( ( ret = asn1_get_tag( p, end, &ext->len,
+ ASN1_CONTEXT_SPECIFIC | ASN1_CONSTRUCTED | tag ) ) != 0 )
+ return( ret );
+
+ ext->p = *p;
+ end = *p + ext->len;
+
+ /*
+ * Extensions ::= SEQUENCE SIZE (1..MAX) OF Extension
+ *
+ * Extension ::= SEQUENCE {
+ * extnID OBJECT IDENTIFIER,
+ * critical BOOLEAN DEFAULT FALSE,
+ * extnValue OCTET STRING }
+ */
+ if( ( ret = asn1_get_tag( p, end, &len,
+ ASN1_CONSTRUCTED | ASN1_SEQUENCE ) ) != 0 )
+ return( POLARSSL_ERR_X509_CERT_INVALID_EXTENSIONS + ret );
+
+ if( end != *p + len )
+ return( POLARSSL_ERR_X509_CERT_INVALID_EXTENSIONS +
+ POLARSSL_ERR_ASN1_LENGTH_MISMATCH );
+
+ return( 0 );
+}
+
+/*
+ * X.509 CRL v2 extensions (no extensions parsed yet.)
+ */
+static int x509_get_crl_ext( unsigned char **p,
+ const unsigned char *end,
+ x509_buf *ext )
+{
+ int ret;
+ size_t len = 0;
+
+ /* Get explicit tag */
+ if( ( ret = x509_get_ext( p, end, ext, 0) ) != 0 )
+ {
+ if( ret == POLARSSL_ERR_ASN1_UNEXPECTED_TAG )
+ return( 0 );
+
+ return( ret );
+ }
+
+ while( *p < end )
+ {
+ if( ( ret = asn1_get_tag( p, end, &len,
+ ASN1_CONSTRUCTED | ASN1_SEQUENCE ) ) != 0 )
+ return( POLARSSL_ERR_X509_CERT_INVALID_EXTENSIONS + ret );
+
+ *p += len;
+ }
+
+ if( *p != end )
+ return( POLARSSL_ERR_X509_CERT_INVALID_EXTENSIONS +
+ POLARSSL_ERR_ASN1_LENGTH_MISMATCH );
+
+ return( 0 );
+}
+
+/*
+ * X.509 CRL v2 entry extensions (no extensions parsed yet.)
+ */
+static int x509_get_crl_entry_ext( unsigned char **p,
+ const unsigned char *end,
+ x509_buf *ext )
+{
+ int ret;
+ size_t len = 0;
+
+ /* OPTIONAL */
+ if (end <= *p)
+ return( 0 );
+
+ ext->tag = **p;
+ ext->p = *p;
+
+ /*
+ * Get CRL-entry extension sequence header
+ * crlEntryExtensions Extensions OPTIONAL -- if present, MUST be v2
+ */
+ if( ( ret = asn1_get_tag( p, end, &ext->len,
+ ASN1_CONSTRUCTED | ASN1_SEQUENCE ) ) != 0 )
+ {
+ if( ret == POLARSSL_ERR_ASN1_UNEXPECTED_TAG )
+ {
+ ext->p = NULL;
+ return( 0 );
+ }
+ return( POLARSSL_ERR_X509_CERT_INVALID_EXTENSIONS + ret );
+ }
+
+ end = *p + ext->len;
+
+ if( end != *p + ext->len )
+ return( POLARSSL_ERR_X509_CERT_INVALID_EXTENSIONS +
+ POLARSSL_ERR_ASN1_LENGTH_MISMATCH );
+
+ while( *p < end )
+ {
+ if( ( ret = asn1_get_tag( p, end, &len,
+ ASN1_CONSTRUCTED | ASN1_SEQUENCE ) ) != 0 )
+ return( POLARSSL_ERR_X509_CERT_INVALID_EXTENSIONS + ret );
+
+ *p += len;
+ }
+
+ if( *p != end )
+ return( POLARSSL_ERR_X509_CERT_INVALID_EXTENSIONS +
+ POLARSSL_ERR_ASN1_LENGTH_MISMATCH );
+
+ return( 0 );
+}
+
+static int x509_get_basic_constraints( unsigned char **p,
+ const unsigned char *end,
+ int *ca_istrue,
+ int *max_pathlen )
+{
+ int ret;
+ size_t len;
+
+ /*
+ * BasicConstraints ::= SEQUENCE {
+ * cA BOOLEAN DEFAULT FALSE,
+ * pathLenConstraint INTEGER (0..MAX) OPTIONAL }
+ */
+ *ca_istrue = 0; /* DEFAULT FALSE */
+ *max_pathlen = 0; /* endless */
+
+ if( ( ret = asn1_get_tag( p, end, &len,
+ ASN1_CONSTRUCTED | ASN1_SEQUENCE ) ) != 0 )
+ return( POLARSSL_ERR_X509_CERT_INVALID_EXTENSIONS + ret );
+
+ if( *p == end )
+ return 0;
+
+ if( ( ret = asn1_get_bool( p, end, ca_istrue ) ) != 0 )
+ {
+ if( ret == POLARSSL_ERR_ASN1_UNEXPECTED_TAG )
+ ret = asn1_get_int( p, end, ca_istrue );
+
+ if( ret != 0 )
+ return( POLARSSL_ERR_X509_CERT_INVALID_EXTENSIONS + ret );
+
+ if( *ca_istrue != 0 )
+ *ca_istrue = 1;
+ }
+
+ if( *p == end )
+ return 0;
+
+ if( ( ret = asn1_get_int( p, end, max_pathlen ) ) != 0 )
+ return( POLARSSL_ERR_X509_CERT_INVALID_EXTENSIONS + ret );
+
+ if( *p != end )
+ return( POLARSSL_ERR_X509_CERT_INVALID_EXTENSIONS +
+ POLARSSL_ERR_ASN1_LENGTH_MISMATCH );
+
+ (*max_pathlen)++;
+
+ return 0;
+}
+
+static int x509_get_ns_cert_type( unsigned char **p,
+ const unsigned char *end,
+ unsigned char *ns_cert_type)
+{
+ int ret;
+ x509_bitstring bs = { 0, 0, NULL };
+
+ if( ( ret = asn1_get_bitstring( p, end, &bs ) ) != 0 )
+ return( POLARSSL_ERR_X509_CERT_INVALID_EXTENSIONS + ret );
+
+ if( bs.len != 1 )
+ return( POLARSSL_ERR_X509_CERT_INVALID_EXTENSIONS +
+ POLARSSL_ERR_ASN1_INVALID_LENGTH );
+
+ /* Get actual bitstring */
+ *ns_cert_type = *bs.p;
+ return 0;
+}
+
+static int x509_get_key_usage( unsigned char **p,
+ const unsigned char *end,
+ unsigned char *key_usage)
+{
+ int ret;
+ x509_bitstring bs = { 0, 0, NULL };
+
+ if( ( ret = asn1_get_bitstring( p, end, &bs ) ) != 0 )
+ return( POLARSSL_ERR_X509_CERT_INVALID_EXTENSIONS + ret );
+
+ if( bs.len > 1 )
+ return( POLARSSL_ERR_X509_CERT_INVALID_EXTENSIONS +
+ POLARSSL_ERR_ASN1_INVALID_LENGTH );
+
+ /* Get actual bitstring */
+ *key_usage = *bs.p;
+ return 0;
+}
+
+/*
+ * ExtKeyUsageSyntax ::= SEQUENCE SIZE (1..MAX) OF KeyPurposeId
+ *
+ * KeyPurposeId ::= OBJECT IDENTIFIER
+ */
+static int x509_get_ext_key_usage( unsigned char **p,
+ const unsigned char *end,
+ x509_sequence *ext_key_usage)
+{
+ int ret;
+
+ if( ( ret = asn1_get_sequence_of( p, end, ext_key_usage, ASN1_OID ) ) != 0 )
+ return( POLARSSL_ERR_X509_CERT_INVALID_EXTENSIONS + ret );
+
+ /* Sequence length must be >= 1 */
+ if( ext_key_usage->buf.p == NULL )
+ return( POLARSSL_ERR_X509_CERT_INVALID_EXTENSIONS +
+ POLARSSL_ERR_ASN1_INVALID_LENGTH );
+
+ return 0;
+}
+
+/*
+ * X.509 v3 extensions
+ *
+ * TODO: Perform all of the basic constraints tests required by the RFC
+ * TODO: Set values for undetected extensions to a sane default?
+ *
+ */
+static int x509_get_crt_ext( unsigned char **p,
+ const unsigned char *end,
+ x509_cert *crt )
+{
+ int ret;
+ size_t len;
+ unsigned char *end_ext_data, *end_ext_octet;
+
+ if( ( ret = x509_get_ext( p, end, &crt->v3_ext, 3 ) ) != 0 )
+ {
+ if( ret == POLARSSL_ERR_ASN1_UNEXPECTED_TAG )
+ return( 0 );
+
+ return( ret );
+ }
+
+ while( *p < end )
+ {
+ /*
+ * Extension ::= SEQUENCE {
+ * extnID OBJECT IDENTIFIER,
+ * critical BOOLEAN DEFAULT FALSE,
+ * extnValue OCTET STRING }
+ */
+ x509_buf extn_oid = {0, 0, NULL};
+ int is_critical = 0; /* DEFAULT FALSE */
+
+ if( ( ret = asn1_get_tag( p, end, &len,
+ ASN1_CONSTRUCTED | ASN1_SEQUENCE ) ) != 0 )
+ return( POLARSSL_ERR_X509_CERT_INVALID_EXTENSIONS + ret );
+
+ end_ext_data = *p + len;
+
+ /* Get extension ID */
+ extn_oid.tag = **p;
+
+ if( ( ret = asn1_get_tag( p, end, &extn_oid.len, ASN1_OID ) ) != 0 )
+ return( POLARSSL_ERR_X509_CERT_INVALID_EXTENSIONS + ret );
+
+ extn_oid.p = *p;
+ *p += extn_oid.len;
+
+ if( ( end - *p ) < 1 )
+ return( POLARSSL_ERR_X509_CERT_INVALID_EXTENSIONS +
+ POLARSSL_ERR_ASN1_OUT_OF_DATA );
+
+ /* Get optional critical */
+ if( ( ret = asn1_get_bool( p, end_ext_data, &is_critical ) ) != 0 &&
+ ( ret != POLARSSL_ERR_ASN1_UNEXPECTED_TAG ) )
+ return( POLARSSL_ERR_X509_CERT_INVALID_EXTENSIONS + ret );
+
+ /* Data should be octet string type */
+ if( ( ret = asn1_get_tag( p, end_ext_data, &len,
+ ASN1_OCTET_STRING ) ) != 0 )
+ return( POLARSSL_ERR_X509_CERT_INVALID_EXTENSIONS + ret );
+
+ end_ext_octet = *p + len;
+
+ if( end_ext_octet != end_ext_data )
+ return( POLARSSL_ERR_X509_CERT_INVALID_EXTENSIONS +
+ POLARSSL_ERR_ASN1_LENGTH_MISMATCH );
+
+ /*
+ * Detect supported extensions
+ */
+ if( ( OID_SIZE( OID_BASIC_CONSTRAINTS ) == extn_oid.len ) &&
+ memcmp( extn_oid.p, OID_BASIC_CONSTRAINTS, extn_oid.len ) == 0 )
+ {
+ /* Parse basic constraints */
+ if( ( ret = x509_get_basic_constraints( p, end_ext_octet,
+ &crt->ca_istrue, &crt->max_pathlen ) ) != 0 )
+ return ( ret );
+ crt->ext_types |= EXT_BASIC_CONSTRAINTS;
+ }
+ else if( ( OID_SIZE( OID_NS_CERT_TYPE ) == extn_oid.len ) &&
+ memcmp( extn_oid.p, OID_NS_CERT_TYPE, extn_oid.len ) == 0 )
+ {
+ /* Parse netscape certificate type */
+ if( ( ret = x509_get_ns_cert_type( p, end_ext_octet,
+ &crt->ns_cert_type ) ) != 0 )
+ return ( ret );
+ crt->ext_types |= EXT_NS_CERT_TYPE;
+ }
+ else if( ( OID_SIZE( OID_KEY_USAGE ) == extn_oid.len ) &&
+ memcmp( extn_oid.p, OID_KEY_USAGE, extn_oid.len ) == 0 )
+ {
+ /* Parse key usage */
+ if( ( ret = x509_get_key_usage( p, end_ext_octet,
+ &crt->key_usage ) ) != 0 )
+ return ( ret );
+ crt->ext_types |= EXT_KEY_USAGE;
+ }
+ else if( ( OID_SIZE( OID_EXTENDED_KEY_USAGE ) == extn_oid.len ) &&
+ memcmp( extn_oid.p, OID_EXTENDED_KEY_USAGE, extn_oid.len ) == 0 )
+ {
+ /* Parse extended key usage */
+ if( ( ret = x509_get_ext_key_usage( p, end_ext_octet,
+ &crt->ext_key_usage ) ) != 0 )
+ return ( ret );
+ crt->ext_types |= EXT_EXTENDED_KEY_USAGE;
+ }
+ else
+ {
+ /* No parser found, skip extension */
+ *p = end_ext_octet;
+
+#if !defined(POLARSSL_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION)
+ if( is_critical )
+ {
+ /* Data is marked as critical: fail */
+ return ( POLARSSL_ERR_X509_CERT_INVALID_EXTENSIONS +
+ POLARSSL_ERR_ASN1_UNEXPECTED_TAG );
+ }
+#endif
+ }
+ }
+
+ if( *p != end )
+ return( POLARSSL_ERR_X509_CERT_INVALID_EXTENSIONS +
+ POLARSSL_ERR_ASN1_LENGTH_MISMATCH );
+
+ return( 0 );
+}
+
+/*
+ * X.509 CRL Entries
+ */
+static int x509_get_entries( unsigned char **p,
+ const unsigned char *end,
+ x509_crl_entry *entry )
+{
+ int ret;
+ size_t entry_len;
+ x509_crl_entry *cur_entry = entry;
+
+ if( *p == end )
+ return( 0 );
+
+ if( ( ret = asn1_get_tag( p, end, &entry_len,
+ ASN1_SEQUENCE | ASN1_CONSTRUCTED ) ) != 0 )
+ {
+ if( ret == POLARSSL_ERR_ASN1_UNEXPECTED_TAG )
+ return( 0 );
+
+ return( ret );
+ }
+
+ end = *p + entry_len;
+
+ while( *p < end )
+ {
+ size_t len2;
+ const unsigned char *end2;
+
+ if( ( ret = asn1_get_tag( p, end, &len2,
+ ASN1_SEQUENCE | ASN1_CONSTRUCTED ) ) != 0 )
+ {
+ return( ret );
+ }
+
+ cur_entry->raw.tag = **p;
+ cur_entry->raw.p = *p;
+ cur_entry->raw.len = len2;
+ end2 = *p + len2;
+
+ if( ( ret = x509_get_serial( p, end2, &cur_entry->serial ) ) != 0 )
+ return( ret );
+
+ if( ( ret = x509_get_time( p, end2, &cur_entry->revocation_date ) ) != 0 )
+ return( ret );
+
+ if( ( ret = x509_get_crl_entry_ext( p, end2, &cur_entry->entry_ext ) ) != 0 )
+ return( ret );
+
+ if ( *p < end )
+ {
+ cur_entry->next = malloc( sizeof( x509_crl_entry ) );
+
+ if( cur_entry->next == NULL )
+ return( POLARSSL_ERR_X509_MALLOC_FAILED );
+
+ cur_entry = cur_entry->next;
+ memset( cur_entry, 0, sizeof( x509_crl_entry ) );
+ }
+ }
+
+ return( 0 );
+}
+
+static int x509_get_sig_alg( const x509_buf *sig_oid, int *sig_alg )
+{
+ if( sig_oid->len == 9 &&
+ memcmp( sig_oid->p, OID_PKCS1, 8 ) == 0 )
+ {
+ if( sig_oid->p[8] >= 2 && sig_oid->p[8] <= 5 )
+ {
+ *sig_alg = sig_oid->p[8];
+ return( 0 );
+ }
+
+ if ( sig_oid->p[8] >= 11 && sig_oid->p[8] <= 14 )
+ {
+ *sig_alg = sig_oid->p[8];
+ return( 0 );
+ }
+
+ return( POLARSSL_ERR_X509_CERT_UNKNOWN_SIG_ALG );
+ }
+ if( sig_oid->len == 5 &&
+ memcmp( sig_oid->p, OID_RSA_SHA_OBS, 5 ) == 0 )
+ {
+ *sig_alg = SIG_RSA_SHA1;
+ return( 0 );
+ }
+
+ return( POLARSSL_ERR_X509_CERT_UNKNOWN_SIG_ALG );
+}
+
+/*
+ * Parse and fill a single X.509 certificate in DER format
+ */
+int x509parse_crt_der( x509_cert *crt, const unsigned char *buf, size_t buflen )
+{
+ int ret;
+ size_t len;
+ unsigned char *p, *end;
+
+ /*
+ * Check for valid input
+ */
+ if( crt == NULL || buf == NULL )
+ return( POLARSSL_ERR_X509_INVALID_INPUT );
+
+ p = (unsigned char *) malloc( len = buflen );
+
+ if( p == NULL )
+ return( POLARSSL_ERR_X509_MALLOC_FAILED );
+
+ memcpy( p, buf, buflen );
+
+ buflen = 0;
+
+ crt->raw.p = p;
+ crt->raw.len = len;
+ end = p + len;
+
+ /*
+ * Certificate ::= SEQUENCE {
+ * tbsCertificate TBSCertificate,
+ * signatureAlgorithm AlgorithmIdentifier,
+ * signatureValue BIT STRING }
+ */
+ if( ( ret = asn1_get_tag( &p, end, &len,
+ ASN1_CONSTRUCTED | ASN1_SEQUENCE ) ) != 0 )
+ {
+ x509_free( crt );
+ return( POLARSSL_ERR_X509_CERT_INVALID_FORMAT );
+ }
+
+ if( len != (size_t) ( end - p ) )
+ {
+ x509_free( crt );
+ return( POLARSSL_ERR_X509_CERT_INVALID_FORMAT +
+ POLARSSL_ERR_ASN1_LENGTH_MISMATCH );
+ }
+
+ /*
+ * TBSCertificate ::= SEQUENCE {
+ */
+ crt->tbs.p = p;
+
+ if( ( ret = asn1_get_tag( &p, end, &len,
+ ASN1_CONSTRUCTED | ASN1_SEQUENCE ) ) != 0 )
+ {
+ x509_free( crt );
+ return( POLARSSL_ERR_X509_CERT_INVALID_FORMAT + ret );
+ }
+
+ end = p + len;
+ crt->tbs.len = end - crt->tbs.p;
+
+ /*
+ * Version ::= INTEGER { v1(0), v2(1), v3(2) }
+ *
+ * CertificateSerialNumber ::= INTEGER
+ *
+ * signature AlgorithmIdentifier
+ */
+ if( ( ret = x509_get_version( &p, end, &crt->version ) ) != 0 ||
+ ( ret = x509_get_serial( &p, end, &crt->serial ) ) != 0 ||
+ ( ret = x509_get_alg( &p, end, &crt->sig_oid1 ) ) != 0 )
+ {
+ x509_free( crt );
+ return( ret );
+ }
+
+ crt->version++;
+
+ if( crt->version > 3 )
+ {
+ x509_free( crt );
+ return( POLARSSL_ERR_X509_CERT_UNKNOWN_VERSION );
+ }
+
+ if( ( ret = x509_get_sig_alg( &crt->sig_oid1, &crt->sig_alg ) ) != 0 )
+ {
+ x509_free( crt );
+ return( ret );
+ }
+
+ /*
+ * issuer Name
+ */
+ crt->issuer_raw.p = p;
+
+ if( ( ret = asn1_get_tag( &p, end, &len,
+ ASN1_CONSTRUCTED | ASN1_SEQUENCE ) ) != 0 )
+ {
+ x509_free( crt );
+ return( POLARSSL_ERR_X509_CERT_INVALID_FORMAT + ret );
+ }
+
+ if( ( ret = x509_get_name( &p, p + len, &crt->issuer ) ) != 0 )
+ {
+ x509_free( crt );
+ return( ret );
+ }
+
+ crt->issuer_raw.len = p - crt->issuer_raw.p;
+
+ /*
+ * Validity ::= SEQUENCE {
+ * notBefore Time,
+ * notAfter Time }
+ *
+ */
+ if( ( ret = x509_get_dates( &p, end, &crt->valid_from,
+ &crt->valid_to ) ) != 0 )
+ {
+ x509_free( crt );
+ return( ret );
+ }
+
+ /*
+ * subject Name
+ */
+ crt->subject_raw.p = p;
+
+ if( ( ret = asn1_get_tag( &p, end, &len,
+ ASN1_CONSTRUCTED | ASN1_SEQUENCE ) ) != 0 )
+ {
+ x509_free( crt );
+ return( POLARSSL_ERR_X509_CERT_INVALID_FORMAT + ret );
+ }
+
+ if( ( ret = x509_get_name( &p, p + len, &crt->subject ) ) != 0 )
+ {
+ x509_free( crt );
+ return( ret );
+ }
+
+ crt->subject_raw.len = p - crt->subject_raw.p;
+
+ /*
+ * SubjectPublicKeyInfo ::= SEQUENCE
+ * algorithm AlgorithmIdentifier,
+ * subjectPublicKey BIT STRING }
+ */
+ if( ( ret = asn1_get_tag( &p, end, &len,
+ ASN1_CONSTRUCTED | ASN1_SEQUENCE ) ) != 0 )
+ {
+ x509_free( crt );
+ return( POLARSSL_ERR_X509_CERT_INVALID_FORMAT + ret );
+ }
+
+ if( ( ret = x509_get_pubkey( &p, p + len, &crt->pk_oid,
+ &crt->rsa.N, &crt->rsa.E ) ) != 0 )
+ {
+ x509_free( crt );
+ return( ret );
+ }
+
+ if( ( ret = rsa_check_pubkey( &crt->rsa ) ) != 0 )
+ {
+ x509_free( crt );
+ return( ret );
+ }
+
+ crt->rsa.len = mpi_size( &crt->rsa.N );
+
+ /*
+ * issuerUniqueID [1] IMPLICIT UniqueIdentifier OPTIONAL,
+ * -- If present, version shall be v2 or v3
+ * subjectUniqueID [2] IMPLICIT UniqueIdentifier OPTIONAL,
+ * -- If present, version shall be v2 or v3
+ * extensions [3] EXPLICIT Extensions OPTIONAL
+ * -- If present, version shall be v3
+ */
+ if( crt->version == 2 || crt->version == 3 )
+ {
+ ret = x509_get_uid( &p, end, &crt->issuer_id, 1 );
+ if( ret != 0 )
+ {
+ x509_free( crt );
+ return( ret );
+ }
+ }
+
+ if( crt->version == 2 || crt->version == 3 )
+ {
+ ret = x509_get_uid( &p, end, &crt->subject_id, 2 );
+ if( ret != 0 )
+ {
+ x509_free( crt );
+ return( ret );
+ }
+ }
+
+ if( crt->version == 3 )
+ {
+ ret = x509_get_crt_ext( &p, end, crt);
+ if( ret != 0 )
+ {
+ x509_free( crt );
+ return( ret );
+ }
+ }
+
+ if( p != end )
+ {
+ x509_free( crt );
+ return( POLARSSL_ERR_X509_CERT_INVALID_FORMAT +
+ POLARSSL_ERR_ASN1_LENGTH_MISMATCH );
+ }
+
+ end = crt->raw.p + crt->raw.len;
+
+ /*
+ * signatureAlgorithm AlgorithmIdentifier,
+ * signatureValue BIT STRING
+ */
+ if( ( ret = x509_get_alg( &p, end, &crt->sig_oid2 ) ) != 0 )
+ {
+ x509_free( crt );
+ return( ret );
+ }
+
+ if( memcmp( crt->sig_oid1.p, crt->sig_oid2.p, crt->sig_oid1.len ) != 0 )
+ {
+ x509_free( crt );
+ return( POLARSSL_ERR_X509_CERT_SIG_MISMATCH );
+ }
+
+ if( ( ret = x509_get_sig( &p, end, &crt->sig ) ) != 0 )
+ {
+ x509_free( crt );
+ return( ret );
+ }
+
+ if( p != end )
+ {
+ x509_free( crt );
+ return( POLARSSL_ERR_X509_CERT_INVALID_FORMAT +
+ POLARSSL_ERR_ASN1_LENGTH_MISMATCH );
+ }
+
+ return( 0 );
+}
+
+/*
+ * Parse one or more PEM certificates from a buffer and add them to the chained list
+ */
+int x509parse_crt( x509_cert *chain, const unsigned char *buf, size_t buflen )
+{
+ int ret, success = 0, first_error = 0, total_failed = 0;
+ x509_cert *crt, *prev = NULL;
+ int buf_format = X509_FORMAT_DER;
+
+ crt = chain;
+
+ /*
+ * Check for valid input
+ */
+ if( crt == NULL || buf == NULL )
+ return( POLARSSL_ERR_X509_INVALID_INPUT );
+
+ while( crt->version != 0 && crt->next != NULL )
+ {
+ prev = crt;
+ crt = crt->next;
+ }
+
+ /*
+ * Add new certificate on the end of the chain if needed.
+ */
+ if ( crt->version != 0 && crt->next == NULL)
+ {
+ crt->next = (x509_cert *) malloc( sizeof( x509_cert ) );
+
+ if( crt->next == NULL )
+ return( POLARSSL_ERR_X509_MALLOC_FAILED );
+
+ prev = crt;
+ crt = crt->next;
+ memset( crt, 0, sizeof( x509_cert ) );
+ }
+
+ /*
+ * Determine buffer content. Buffer contains either one DER certificate or
+ * one or more PEM certificates.
+ */
+#if defined(POLARSSL_PEM_C)
+ if( strstr( (char *) buf, "-----BEGIN CERTIFICATE-----" ) != NULL )
+ buf_format = X509_FORMAT_PEM;
+#endif
+
+ if( buf_format == X509_FORMAT_DER )
+ return x509parse_crt_der( crt, buf, buflen );
+
+#if defined(POLARSSL_PEM_C)
+ if( buf_format == X509_FORMAT_PEM )
+ {
+ pem_context pem;
+
+ while( buflen > 0 )
+ {
+ size_t use_len;
+ pem_init( &pem );
+
+ ret = pem_read_buffer( &pem,
+ "-----BEGIN CERTIFICATE-----",
+ "-----END CERTIFICATE-----",
+ buf, NULL, 0, &use_len );
+
+ if( ret == 0 )
+ {
+ /*
+ * Was PEM encoded
+ */
+ buflen -= use_len;
+ buf += use_len;
+ }
+ else if( ret != POLARSSL_ERR_PEM_NO_HEADER_PRESENT )
+ {
+ pem_free( &pem );
+
+ if( first_error == 0 )
+ first_error = ret;
+
+ continue;
+ }
+ else
+ break;
+
+ ret = x509parse_crt_der( crt, pem.buf, pem.buflen );
+
+ pem_free( &pem );
+
+ if( ret != 0 )
+ {
+ /*
+ * quit parsing on a memory error
+ */
+ if( ret == POLARSSL_ERR_X509_MALLOC_FAILED )
+ {
+ if( prev )
+ prev->next = NULL;
+
+ if( crt != chain )
+ free( crt );
+
+ return( ret );
+ }
+
+ if( first_error == 0 )
+ first_error = ret;
+
+ total_failed++;
+
+ memset( crt, 0, sizeof( x509_cert ) );
+ continue;
+ }
+
+ success = 1;
+
+ /*
+ * Add new certificate to the list
+ */
+ crt->next = (x509_cert *) malloc( sizeof( x509_cert ) );
+
+ if( crt->next == NULL )
+ return( POLARSSL_ERR_X509_MALLOC_FAILED );
+
+ prev = crt;
+ crt = crt->next;
+ memset( crt, 0, sizeof( x509_cert ) );
+ }
+ }
+#endif
+
+ if( crt->version == 0 )
+ {
+ if( prev )
+ prev->next = NULL;
+
+ if( crt != chain )
+ free( crt );
+ }
+
+ if( success )
+ return( total_failed );
+ else if( first_error )
+ return( first_error );
+ else
+ return( POLARSSL_ERR_X509_CERT_UNKNOWN_FORMAT );
+}
+
+/*
+ * Parse one or more CRLs and add them to the chained list
+ */
+int x509parse_crl( x509_crl *chain, const unsigned char *buf, size_t buflen )
+{
+ int ret;
+ size_t len;
+ unsigned char *p, *end;
+ x509_crl *crl;
+#if defined(POLARSSL_PEM_C)
+ size_t use_len;
+ pem_context pem;
+#endif
+
+ crl = chain;
+
+ /*
+ * Check for valid input
+ */
+ if( crl == NULL || buf == NULL )
+ return( POLARSSL_ERR_X509_INVALID_INPUT );
+
+ while( crl->version != 0 && crl->next != NULL )
+ crl = crl->next;
+
+ /*
+ * Add new CRL on the end of the chain if needed.
+ */
+ if ( crl->version != 0 && crl->next == NULL)
+ {
+ crl->next = (x509_crl *) malloc( sizeof( x509_crl ) );
+
+ if( crl->next == NULL )
+ {
+ x509_crl_free( crl );
+ return( POLARSSL_ERR_X509_MALLOC_FAILED );
+ }
+
+ crl = crl->next;
+ memset( crl, 0, sizeof( x509_crl ) );
+ }
+
+#if defined(POLARSSL_PEM_C)
+ pem_init( &pem );
+ ret = pem_read_buffer( &pem,
+ "-----BEGIN X509 CRL-----",
+ "-----END X509 CRL-----",
+ buf, NULL, 0, &use_len );
+
+ if( ret == 0 )
+ {
+ /*
+ * Was PEM encoded
+ */
+ buflen -= use_len;
+ buf += use_len;
+
+ /*
+ * Steal PEM buffer
+ */
+ p = pem.buf;
+ pem.buf = NULL;
+ len = pem.buflen;
+ pem_free( &pem );
+ }
+ else if( ret != POLARSSL_ERR_PEM_NO_HEADER_PRESENT )
+ {
+ pem_free( &pem );
+ return( ret );
+ }
+ else
+ {
+ /*
+ * nope, copy the raw DER data
+ */
+ p = (unsigned char *) malloc( len = buflen );
+
+ if( p == NULL )
+ return( POLARSSL_ERR_X509_MALLOC_FAILED );
+
+ memcpy( p, buf, buflen );
+
+ buflen = 0;
+ }
+#else
+ p = (unsigned char *) malloc( len = buflen );
+
+ if( p == NULL )
+ return( POLARSSL_ERR_X509_MALLOC_FAILED );
+
+ memcpy( p, buf, buflen );
+
+ buflen = 0;
+#endif
+
+ crl->raw.p = p;
+ crl->raw.len = len;
+ end = p + len;
+
+ /*
+ * CertificateList ::= SEQUENCE {
+ * tbsCertList TBSCertList,
+ * signatureAlgorithm AlgorithmIdentifier,
+ * signatureValue BIT STRING }
+ */
+ if( ( ret = asn1_get_tag( &p, end, &len,
+ ASN1_CONSTRUCTED | ASN1_SEQUENCE ) ) != 0 )
+ {
+ x509_crl_free( crl );
+ return( POLARSSL_ERR_X509_CERT_INVALID_FORMAT );
+ }
+
+ if( len != (size_t) ( end - p ) )
+ {
+ x509_crl_free( crl );
+ return( POLARSSL_ERR_X509_CERT_INVALID_FORMAT +
+ POLARSSL_ERR_ASN1_LENGTH_MISMATCH );
+ }
+
+ /*
+ * TBSCertList ::= SEQUENCE {
+ */
+ crl->tbs.p = p;
+
+ if( ( ret = asn1_get_tag( &p, end, &len,
+ ASN1_CONSTRUCTED | ASN1_SEQUENCE ) ) != 0 )
+ {
+ x509_crl_free( crl );
+ return( POLARSSL_ERR_X509_CERT_INVALID_FORMAT + ret );
+ }
+
+ end = p + len;
+ crl->tbs.len = end - crl->tbs.p;
+
+ /*
+ * Version ::= INTEGER OPTIONAL { v1(0), v2(1) }
+ * -- if present, MUST be v2
+ *
+ * signature AlgorithmIdentifier
+ */
+ if( ( ret = x509_crl_get_version( &p, end, &crl->version ) ) != 0 ||
+ ( ret = x509_get_alg( &p, end, &crl->sig_oid1 ) ) != 0 )
+ {
+ x509_crl_free( crl );
+ return( ret );
+ }
+
+ crl->version++;
+
+ if( crl->version > 2 )
+ {
+ x509_crl_free( crl );
+ return( POLARSSL_ERR_X509_CERT_UNKNOWN_VERSION );
+ }
+
+ if( ( ret = x509_get_sig_alg( &crl->sig_oid1, &crl->sig_alg ) ) != 0 )
+ {
+ x509_crl_free( crl );
+ return( POLARSSL_ERR_X509_CERT_UNKNOWN_SIG_ALG );
+ }
+
+ /*
+ * issuer Name
+ */
+ crl->issuer_raw.p = p;
+
+ if( ( ret = asn1_get_tag( &p, end, &len,
+ ASN1_CONSTRUCTED | ASN1_SEQUENCE ) ) != 0 )
+ {
+ x509_crl_free( crl );
+ return( POLARSSL_ERR_X509_CERT_INVALID_FORMAT + ret );
+ }
+
+ if( ( ret = x509_get_name( &p, p + len, &crl->issuer ) ) != 0 )
+ {
+ x509_crl_free( crl );
+ return( ret );
+ }
+
+ crl->issuer_raw.len = p - crl->issuer_raw.p;
+
+ /*
+ * thisUpdate Time
+ * nextUpdate Time OPTIONAL
+ */
+ if( ( ret = x509_get_time( &p, end, &crl->this_update ) ) != 0 )
+ {
+ x509_crl_free( crl );
+ return( ret );
+ }
+
+ if( ( ret = x509_get_time( &p, end, &crl->next_update ) ) != 0 )
+ {
+ if ( ret != ( POLARSSL_ERR_X509_CERT_INVALID_DATE +
+ POLARSSL_ERR_ASN1_UNEXPECTED_TAG ) &&
+ ret != ( POLARSSL_ERR_X509_CERT_INVALID_DATE +
+ POLARSSL_ERR_ASN1_OUT_OF_DATA ) )
+ {
+ x509_crl_free( crl );
+ return( ret );
+ }
+ }
+
+ /*
+ * revokedCertificates SEQUENCE OF SEQUENCE {
+ * userCertificate CertificateSerialNumber,
+ * revocationDate Time,
+ * crlEntryExtensions Extensions OPTIONAL
+ * -- if present, MUST be v2
+ * } OPTIONAL
+ */
+ if( ( ret = x509_get_entries( &p, end, &crl->entry ) ) != 0 )
+ {
+ x509_crl_free( crl );
+ return( ret );
+ }
+
+ /*
+ * crlExtensions EXPLICIT Extensions OPTIONAL
+ * -- if present, MUST be v2
+ */
+ if( crl->version == 2 )
+ {
+ ret = x509_get_crl_ext( &p, end, &crl->crl_ext );
+
+ if( ret != 0 )
+ {
+ x509_crl_free( crl );
+ return( ret );
+ }
+ }
+
+ if( p != end )
+ {
+ x509_crl_free( crl );
+ return( POLARSSL_ERR_X509_CERT_INVALID_FORMAT +
+ POLARSSL_ERR_ASN1_LENGTH_MISMATCH );
+ }
+
+ end = crl->raw.p + crl->raw.len;
+
+ /*
+ * signatureAlgorithm AlgorithmIdentifier,
+ * signatureValue BIT STRING
+ */
+ if( ( ret = x509_get_alg( &p, end, &crl->sig_oid2 ) ) != 0 )
+ {
+ x509_crl_free( crl );
+ return( ret );
+ }
+
+ if( memcmp( crl->sig_oid1.p, crl->sig_oid2.p, crl->sig_oid1.len ) != 0 )
+ {
+ x509_crl_free( crl );
+ return( POLARSSL_ERR_X509_CERT_SIG_MISMATCH );
+ }
+
+ if( ( ret = x509_get_sig( &p, end, &crl->sig ) ) != 0 )
+ {
+ x509_crl_free( crl );
+ return( ret );
+ }
+
+ if( p != end )
+ {
+ x509_crl_free( crl );
+ return( POLARSSL_ERR_X509_CERT_INVALID_FORMAT +
+ POLARSSL_ERR_ASN1_LENGTH_MISMATCH );
+ }
+
+ if( buflen > 0 )
+ {
+ crl->next = (x509_crl *) malloc( sizeof( x509_crl ) );
+
+ if( crl->next == NULL )
+ {
+ x509_crl_free( crl );
+ return( POLARSSL_ERR_X509_MALLOC_FAILED );
+ }
+
+ crl = crl->next;
+ memset( crl, 0, sizeof( x509_crl ) );
+
+ return( x509parse_crl( crl, buf, buflen ) );
+ }
+
+ return( 0 );
+}
+
+#if defined(POLARSSL_FS_IO)
+/*
+ * Load all data from a file into a given buffer.
+ */
+int load_file( const char *path, unsigned char **buf, size_t *n )
+{
+ FILE *f;
+
+ if( ( f = fopen( path, "rb" ) ) == NULL )
+ return( POLARSSL_ERR_X509_FILE_IO_ERROR );
+
+ fseek( f, 0, SEEK_END );
+ *n = (size_t) ftell( f );
+ fseek( f, 0, SEEK_SET );
+
+ if( ( *buf = (unsigned char *) malloc( *n + 1 ) ) == NULL )
+ return( POLARSSL_ERR_X509_MALLOC_FAILED );
+
+ if( fread( *buf, 1, *n, f ) != *n )
+ {
+ fclose( f );
+ free( *buf );
+ return( POLARSSL_ERR_X509_FILE_IO_ERROR );
+ }
+
+ fclose( f );
+
+ (*buf)[*n] = '\0';
+
+ return( 0 );
+}
+
+/*
+ * Load one or more certificates and add them to the chained list
+ */
+int x509parse_crtfile( x509_cert *chain, const char *path )
+{
+ int ret;
+ size_t n;
+ unsigned char *buf;
+
+ if ( (ret = load_file( path, &buf, &n ) ) != 0 )
+ return( ret );
+
+ ret = x509parse_crt( chain, buf, n );
+
+ memset( buf, 0, n + 1 );
+ free( buf );
+
+ return( ret );
+}
+
+/*
+ * Load one or more CRLs and add them to the chained list
+ */
+int x509parse_crlfile( x509_crl *chain, const char *path )
+{
+ int ret;
+ size_t n;
+ unsigned char *buf;
+
+ if ( (ret = load_file( path, &buf, &n ) ) != 0 )
+ return( ret );
+
+ ret = x509parse_crl( chain, buf, n );
+
+ memset( buf, 0, n + 1 );
+ free( buf );
+
+ return( ret );
+}
+
+/*
+ * Load and parse a private RSA key
+ */
+int x509parse_keyfile( rsa_context *rsa, const char *path, const char *pwd )
+{
+ int ret;
+ size_t n;
+ unsigned char *buf;
+
+ if ( (ret = load_file( path, &buf, &n ) ) != 0 )
+ return( ret );
+
+ if( pwd == NULL )
+ ret = x509parse_key( rsa, buf, n, NULL, 0 );
+ else
+ ret = x509parse_key( rsa, buf, n,
+ (unsigned char *) pwd, strlen( pwd ) );
+
+ memset( buf, 0, n + 1 );
+ free( buf );
+
+ return( ret );
+}
+
+/*
+ * Load and parse a public RSA key
+ */
+int x509parse_public_keyfile( rsa_context *rsa, const char *path )
+{
+ int ret;
+ size_t n;
+ unsigned char *buf;
+
+ if ( (ret = load_file( path, &buf, &n ) ) != 0 )
+ return( ret );
+
+ ret = x509parse_public_key( rsa, buf, n );
+
+ memset( buf, 0, n + 1 );
+ free( buf );
+
+ return( ret );
+}
+#endif /* POLARSSL_FS_IO */
+
+/*
+ * Parse a private RSA key
+ */
+int x509parse_key( rsa_context *rsa, const unsigned char *key, size_t keylen,
+ const unsigned char *pwd, size_t pwdlen )
+{
+ int ret;
+ size_t len;
+ unsigned char *p, *end;
+ unsigned char *p_alt;
+ x509_buf pk_alg_oid;
+
+#if defined(POLARSSL_PEM_C)
+ pem_context pem;
+
+ pem_init( &pem );
+ ret = pem_read_buffer( &pem,
+ "-----BEGIN RSA PRIVATE KEY-----",
+ "-----END RSA PRIVATE KEY-----",
+ key, pwd, pwdlen, &len );
+
+ if( ret == POLARSSL_ERR_PEM_NO_HEADER_PRESENT )
+ {
+ ret = pem_read_buffer( &pem,
+ "-----BEGIN PRIVATE KEY-----",
+ "-----END PRIVATE KEY-----",
+ key, pwd, pwdlen, &len );
+ }
+
+ if( ret == 0 )
+ {
+ /*
+ * Was PEM encoded
+ */
+ keylen = pem.buflen;
+ }
+ else if( ret != POLARSSL_ERR_PEM_NO_HEADER_PRESENT )
+ {
+ pem_free( &pem );
+ return( ret );
+ }
+
+ p = ( ret == 0 ) ? pem.buf : (unsigned char *) key;
+#else
+ ((void) pwd);
+ ((void) pwdlen);
+ p = (unsigned char *) key;
+#endif
+ end = p + keylen;
+
+ /*
+ * Note: Depending on the type of private key file one can expect either a
+ * PrivatKeyInfo object (PKCS#8) or a RSAPrivateKey (PKCS#1) directly.
+ *
+ * PrivateKeyInfo ::= SEQUENCE {
+ * version Version,
+ * algorithm AlgorithmIdentifier,
+ * PrivateKey BIT STRING
+ * }
+ *
+ * AlgorithmIdentifier ::= SEQUENCE {
+ * algorithm OBJECT IDENTIFIER,
+ * parameters ANY DEFINED BY algorithm OPTIONAL
+ * }
+ *
+ * RSAPrivateKey ::= SEQUENCE {
+ * version Version,
+ * modulus INTEGER, -- n
+ * publicExponent INTEGER, -- e
+ * privateExponent INTEGER, -- d
+ * prime1 INTEGER, -- p
+ * prime2 INTEGER, -- q
+ * exponent1 INTEGER, -- d mod (p-1)
+ * exponent2 INTEGER, -- d mod (q-1)
+ * coefficient INTEGER, -- (inverse of q) mod p
+ * otherPrimeInfos OtherPrimeInfos OPTIONAL
+ * }
+ */
+ if( ( ret = asn1_get_tag( &p, end, &len,
+ ASN1_CONSTRUCTED | ASN1_SEQUENCE ) ) != 0 )
+ {
+#if defined(POLARSSL_PEM_C)
+ pem_free( &pem );
+#endif
+ rsa_free( rsa );
+ return( POLARSSL_ERR_X509_KEY_INVALID_FORMAT + ret );
+ }
+
+ end = p + len;
+
+ if( ( ret = asn1_get_int( &p, end, &rsa->ver ) ) != 0 )
+ {
+#if defined(POLARSSL_PEM_C)
+ pem_free( &pem );
+#endif
+ rsa_free( rsa );
+ return( POLARSSL_ERR_X509_KEY_INVALID_FORMAT + ret );
+ }
+
+ if( rsa->ver != 0 )
+ {
+#if defined(POLARSSL_PEM_C)
+ pem_free( &pem );
+#endif
+ rsa_free( rsa );
+ return( POLARSSL_ERR_X509_KEY_INVALID_VERSION + ret );
+ }
+
+ p_alt = p;
+
+ if( ( ret = x509_get_alg( &p_alt, end, &pk_alg_oid ) ) != 0 )
+ {
+ // Assume that we have the PKCS#1 format if wrong
+ // tag was encountered
+ //
+ if( ret != POLARSSL_ERR_X509_CERT_INVALID_ALG +
+ POLARSSL_ERR_ASN1_UNEXPECTED_TAG )
+ {
+#if defined(POLARSSL_PEM_C)
+ pem_free( &pem );
+#endif
+ rsa_free( rsa );
+ return( POLARSSL_ERR_X509_KEY_INVALID_FORMAT );
+ }
+ }
+ else
+ {
+ int can_handle;
+
+ /*
+ * only RSA keys handled at this time
+ */
+ can_handle = 0;
+
+ if( pk_alg_oid.len == 9 &&
+ memcmp( pk_alg_oid.p, OID_PKCS1_RSA, 9 ) == 0 )
+ can_handle = 1;
+
+ if( pk_alg_oid.len == 9 &&
+ memcmp( pk_alg_oid.p, OID_PKCS1, 8 ) == 0 )
+ {
+ if( pk_alg_oid.p[8] >= 2 && pk_alg_oid.p[8] <= 5 )
+ can_handle = 1;
+
+ if ( pk_alg_oid.p[8] >= 11 && pk_alg_oid.p[8] <= 14 )
+ can_handle = 1;
+ }
+
+ if( pk_alg_oid.len == 5 &&
+ memcmp( pk_alg_oid.p, OID_RSA_SHA_OBS, 5 ) == 0 )
+ can_handle = 1;
+
+ if( can_handle == 0 )
+ return( POLARSSL_ERR_X509_UNKNOWN_PK_ALG );
+
+ /*
+ * Parse the PKCS#8 format
+ */
+
+ p = p_alt;
+ if( ( ret = asn1_get_tag( &p, end, &len, ASN1_OCTET_STRING ) ) != 0 )
+ {
+#if defined(POLARSSL_PEM_C)
+ pem_free( &pem );
+#endif
+ rsa_free( rsa );
+ return( POLARSSL_ERR_X509_KEY_INVALID_FORMAT + ret );
+ }
+
+ if( ( end - p ) < 1 )
+ {
+#if defined(POLARSSL_PEM_C)
+ pem_free( &pem );
+#endif
+ rsa_free( rsa );
+ return( POLARSSL_ERR_X509_KEY_INVALID_FORMAT +
+ POLARSSL_ERR_ASN1_OUT_OF_DATA );
+ }
+
+ end = p + len;
+
+ if( ( ret = asn1_get_tag( &p, end, &len,
+ ASN1_CONSTRUCTED | ASN1_SEQUENCE ) ) != 0 )
+ {
+#if defined(POLARSSL_PEM_C)
+ pem_free( &pem );
+#endif
+ rsa_free( rsa );
+ return( POLARSSL_ERR_X509_KEY_INVALID_FORMAT + ret );
+ }
+
+ end = p + len;
+
+ if( ( ret = asn1_get_int( &p, end, &rsa->ver ) ) != 0 )
+ {
+#if defined(POLARSSL_PEM_C)
+ pem_free( &pem );
+#endif
+ rsa_free( rsa );
+ return( POLARSSL_ERR_X509_KEY_INVALID_FORMAT + ret );
+ }
+
+ if( rsa->ver != 0 )
+ {
+#if defined(POLARSSL_PEM_C)
+ pem_free( &pem );
+#endif
+ rsa_free( rsa );
+ return( POLARSSL_ERR_X509_KEY_INVALID_VERSION + ret );
+ }
+ }
+
+ if( ( ret = asn1_get_mpi( &p, end, &rsa->N ) ) != 0 ||
+ ( ret = asn1_get_mpi( &p, end, &rsa->E ) ) != 0 ||
+ ( ret = asn1_get_mpi( &p, end, &rsa->D ) ) != 0 ||
+ ( ret = asn1_get_mpi( &p, end, &rsa->P ) ) != 0 ||
+ ( ret = asn1_get_mpi( &p, end, &rsa->Q ) ) != 0 ||
+ ( ret = asn1_get_mpi( &p, end, &rsa->DP ) ) != 0 ||
+ ( ret = asn1_get_mpi( &p, end, &rsa->DQ ) ) != 0 ||
+ ( ret = asn1_get_mpi( &p, end, &rsa->QP ) ) != 0 )
+ {
+#if defined(POLARSSL_PEM_C)
+ pem_free( &pem );
+#endif
+ rsa_free( rsa );
+ return( POLARSSL_ERR_X509_KEY_INVALID_FORMAT + ret );
+ }
+
+ rsa->len = mpi_size( &rsa->N );
+
+ if( p != end )
+ {
+#if defined(POLARSSL_PEM_C)
+ pem_free( &pem );
+#endif
+ rsa_free( rsa );
+ return( POLARSSL_ERR_X509_KEY_INVALID_FORMAT +
+ POLARSSL_ERR_ASN1_LENGTH_MISMATCH );
+ }
+
+ if( ( ret = rsa_check_privkey( rsa ) ) != 0 )
+ {
+#if defined(POLARSSL_PEM_C)
+ pem_free( &pem );
+#endif
+ rsa_free( rsa );
+ return( ret );
+ }
+
+#if defined(POLARSSL_PEM_C)
+ pem_free( &pem );
+#endif
+
+ return( 0 );
+}
+
+/*
+ * Parse a public RSA key
+ */
+int x509parse_public_key( rsa_context *rsa, const unsigned char *key, size_t keylen )
+{
+ int ret;
+ size_t len;
+ unsigned char *p, *end;
+ x509_buf alg_oid;
+#if defined(POLARSSL_PEM_C)
+ pem_context pem;
+
+ pem_init( &pem );
+ ret = pem_read_buffer( &pem,
+ "-----BEGIN PUBLIC KEY-----",
+ "-----END PUBLIC KEY-----",
+ key, NULL, 0, &len );
+
+ if( ret == 0 )
+ {
+ /*
+ * Was PEM encoded
+ */
+ keylen = pem.buflen;
+ }
+ else if( ret != POLARSSL_ERR_PEM_NO_HEADER_PRESENT )
+ {
+ pem_free( &pem );
+ return( ret );
+ }
+
+ p = ( ret == 0 ) ? pem.buf : (unsigned char *) key;
+#else
+ p = (unsigned char *) key;
+#endif
+ end = p + keylen;
+
+ /*
+ * PublicKeyInfo ::= SEQUENCE {
+ * algorithm AlgorithmIdentifier,
+ * PublicKey BIT STRING
+ * }
+ *
+ * AlgorithmIdentifier ::= SEQUENCE {
+ * algorithm OBJECT IDENTIFIER,
+ * parameters ANY DEFINED BY algorithm OPTIONAL
+ * }
+ *
+ * RSAPublicKey ::= SEQUENCE {
+ * modulus INTEGER, -- n
+ * publicExponent INTEGER -- e
+ * }
+ */
+
+ if( ( ret = asn1_get_tag( &p, end, &len,
+ ASN1_CONSTRUCTED | ASN1_SEQUENCE ) ) != 0 )
+ {
+#if defined(POLARSSL_PEM_C)
+ pem_free( &pem );
+#endif
+ rsa_free( rsa );
+ return( POLARSSL_ERR_X509_CERT_INVALID_FORMAT + ret );
+ }
+
+ if( ( ret = x509_get_pubkey( &p, end, &alg_oid, &rsa->N, &rsa->E ) ) != 0 )
+ {
+#if defined(POLARSSL_PEM_C)
+ pem_free( &pem );
+#endif
+ rsa_free( rsa );
+ return( POLARSSL_ERR_X509_KEY_INVALID_FORMAT + ret );
+ }
+
+ if( ( ret = rsa_check_pubkey( rsa ) ) != 0 )
+ {
+#if defined(POLARSSL_PEM_C)
+ pem_free( &pem );
+#endif
+ rsa_free( rsa );
+ return( ret );
+ }
+
+ rsa->len = mpi_size( &rsa->N );
+
+#if defined(POLARSSL_PEM_C)
+ pem_free( &pem );
+#endif
+
+ return( 0 );
+}
+
+#if defined(POLARSSL_DHM_C)
+/*
+ * Parse DHM parameters
+ */
+int x509parse_dhm( dhm_context *dhm, const unsigned char *dhmin, size_t dhminlen )
+{
+ int ret;
+ size_t len;
+ unsigned char *p, *end;
+#if defined(POLARSSL_PEM_C)
+ pem_context pem;
+
+ pem_init( &pem );
+
+ ret = pem_read_buffer( &pem,
+ "-----BEGIN DH PARAMETERS-----",
+ "-----END DH PARAMETERS-----",
+ dhmin, NULL, 0, &dhminlen );
+
+ if( ret == 0 )
+ {
+ /*
+ * Was PEM encoded
+ */
+ dhminlen = pem.buflen;
+ }
+ else if( ret != POLARSSL_ERR_PEM_NO_HEADER_PRESENT )
+ {
+ pem_free( &pem );
+ return( ret );
+ }
+
+ p = ( ret == 0 ) ? pem.buf : (unsigned char *) dhmin;
+#else
+ p = (unsigned char *) dhmin;
+#endif
+ end = p + dhminlen;
+
+ memset( dhm, 0, sizeof( dhm_context ) );
+
+ /*
+ * DHParams ::= SEQUENCE {
+ * prime INTEGER, -- P
+ * generator INTEGER, -- g
+ * }
+ */
+ if( ( ret = asn1_get_tag( &p, end, &len,
+ ASN1_CONSTRUCTED | ASN1_SEQUENCE ) ) != 0 )
+ {
+#if defined(POLARSSL_PEM_C)
+ pem_free( &pem );
+#endif
+ return( POLARSSL_ERR_X509_KEY_INVALID_FORMAT + ret );
+ }
+
+ end = p + len;
+
+ if( ( ret = asn1_get_mpi( &p, end, &dhm->P ) ) != 0 ||
+ ( ret = asn1_get_mpi( &p, end, &dhm->G ) ) != 0 )
+ {
+#if defined(POLARSSL_PEM_C)
+ pem_free( &pem );
+#endif
+ dhm_free( dhm );
+ return( POLARSSL_ERR_X509_KEY_INVALID_FORMAT + ret );
+ }
+
+ if( p != end )
+ {
+#if defined(POLARSSL_PEM_C)
+ pem_free( &pem );
+#endif
+ dhm_free( dhm );
+ return( POLARSSL_ERR_X509_KEY_INVALID_FORMAT +
+ POLARSSL_ERR_ASN1_LENGTH_MISMATCH );
+ }
+
+#if defined(POLARSSL_PEM_C)
+ pem_free( &pem );
+#endif
+
+ return( 0 );
+}
+
+#if defined(POLARSSL_FS_IO)
+/*
+ * Load and parse a private RSA key
+ */
+int x509parse_dhmfile( dhm_context *dhm, const char *path )
+{
+ int ret;
+ size_t n;
+ unsigned char *buf;
+
+ if ( ( ret = load_file( path, &buf, &n ) ) != 0 )
+ return( ret );
+
+ ret = x509parse_dhm( dhm, buf, n );
+
+ memset( buf, 0, n + 1 );
+ free( buf );
+
+ return( ret );
+}
+#endif /* POLARSSL_FS_IO */
+#endif /* POLARSSL_DHM_C */
+
+#if defined _MSC_VER && !defined snprintf
+#include <stdarg.h>
+
+#if !defined vsnprintf
+#define vsnprintf _vsnprintf
+#endif // vsnprintf
+
+/*
+ * Windows _snprintf and _vsnprintf are not compatible to linux versions.
+ * Result value is not size of buffer needed, but -1 if no fit is possible.
+ *
+ * This fuction tries to 'fix' this by at least suggesting enlarging the
+ * size by 20.
+ */
+int compat_snprintf(char *str, size_t size, const char *format, ...)
+{
+ va_list ap;
+ int res = -1;
+
+ va_start( ap, format );
+
+ res = vsnprintf( str, size, format, ap );
+
+ va_end( ap );
+
+ // No quick fix possible
+ if ( res < 0 )
+ return( (int) size + 20 );
+
+ return res;
+}
+
+#define snprintf compat_snprintf
+#endif
+
+#define POLARSSL_ERR_DEBUG_BUF_TOO_SMALL -2
+
+#define SAFE_SNPRINTF() \
+{ \
+ if( ret == -1 ) \
+ return( -1 ); \
+ \
+ if ( (unsigned int) ret > n ) { \
+ p[n - 1] = '\0'; \
+ return POLARSSL_ERR_DEBUG_BUF_TOO_SMALL;\
+ } \
+ \
+ n -= (unsigned int) ret; \
+ p += (unsigned int) ret; \
+}
+
+/*
+ * Store the name in printable form into buf; no more
+ * than size characters will be written
+ */
+int x509parse_dn_gets( char *buf, size_t size, const x509_name *dn )
+{
+ int ret;
+ size_t i, n;
+ unsigned char c;
+ const x509_name *name;
+ char s[128], *p;
+
+ memset( s, 0, sizeof( s ) );
+
+ name = dn;
+ p = buf;
+ n = size;
+
+ while( name != NULL )
+ {
+ if( name != dn )
+ {
+ ret = snprintf( p, n, ", " );
+ SAFE_SNPRINTF();
+ }
+
+ if( memcmp( name->oid.p, OID_X520, 2 ) == 0 )
+ {
+ switch( name->oid.p[2] )
+ {
+ case X520_COMMON_NAME:
+ ret = snprintf( p, n, "CN=" ); break;
+
+ case X520_COUNTRY:
+ ret = snprintf( p, n, "C=" ); break;
+
+ case X520_LOCALITY:
+ ret = snprintf( p, n, "L=" ); break;
+
+ case X520_STATE:
+ ret = snprintf( p, n, "ST=" ); break;
+
+ case X520_ORGANIZATION:
+ ret = snprintf( p, n, "O=" ); break;
+
+ case X520_ORG_UNIT:
+ ret = snprintf( p, n, "OU=" ); break;
+
+ default:
+ ret = snprintf( p, n, "0x%02X=",
+ name->oid.p[2] );
+ break;
+ }
+ SAFE_SNPRINTF();
+ }
+ else if( memcmp( name->oid.p, OID_PKCS9, 8 ) == 0 )
+ {
+ switch( name->oid.p[8] )
+ {
+ case PKCS9_EMAIL:
+ ret = snprintf( p, n, "emailAddress=" ); break;
+
+ default:
+ ret = snprintf( p, n, "0x%02X=",
+ name->oid.p[8] );
+ break;
+ }
+ SAFE_SNPRINTF();
+ }
+ else
+ {
+ ret = snprintf( p, n, "\?\?=" );
+ SAFE_SNPRINTF();
+ }
+
+ for( i = 0; i < name->val.len; i++ )
+ {
+ if( i >= sizeof( s ) - 1 )
+ break;
+
+ c = name->val.p[i];
+ if( c < 32 || c == 127 || ( c > 128 && c < 160 ) )
+ s[i] = '?';
+ else s[i] = c;
+ }
+ s[i] = '\0';
+ ret = snprintf( p, n, "%s", s );
+ SAFE_SNPRINTF();
+ name = name->next;
+ }
+
+ return( (int) ( size - n ) );
+}
+
+/*
+ * Store the serial in printable form into buf; no more
+ * than size characters will be written
+ */
+int x509parse_serial_gets( char *buf, size_t size, const x509_buf *serial )
+{
+ int ret;
+ size_t i, n, nr;
+ char *p;
+
+ p = buf;
+ n = size;
+
+ nr = ( serial->len <= 32 )
+ ? serial->len : 28;
+
+ for( i = 0; i < nr; i++ )
+ {
+ if( i == 0 && nr > 1 && serial->p[i] == 0x0 )
+ continue;
+
+ ret = snprintf( p, n, "%02X%s",
+ serial->p[i], ( i < nr - 1 ) ? ":" : "" );
+ SAFE_SNPRINTF();
+ }
+
+ if( nr != serial->len )
+ {
+ ret = snprintf( p, n, "...." );
+ SAFE_SNPRINTF();
+ }
+
+ return( (int) ( size - n ) );
+}
+
+/*
+ * Return an informational string about the certificate.
+ */
+int x509parse_cert_info( char *buf, size_t size, const char *prefix,
+ const x509_cert *crt )
+{
+ int ret;
+ size_t n;
+ char *p;
+
+ p = buf;
+ n = size;
+
+ ret = snprintf( p, n, "%scert. version : %d\n",
+ prefix, crt->version );
+ SAFE_SNPRINTF();
+ ret = snprintf( p, n, "%sserial number : ",
+ prefix );
+ SAFE_SNPRINTF();
+
+ ret = x509parse_serial_gets( p, n, &crt->serial);
+ SAFE_SNPRINTF();
+
+ ret = snprintf( p, n, "\n%sissuer name : ", prefix );
+ SAFE_SNPRINTF();
+ ret = x509parse_dn_gets( p, n, &crt->issuer );
+ SAFE_SNPRINTF();
+
+ ret = snprintf( p, n, "\n%ssubject name : ", prefix );
+ SAFE_SNPRINTF();
+ ret = x509parse_dn_gets( p, n, &crt->subject );
+ SAFE_SNPRINTF();
+
+ ret = snprintf( p, n, "\n%sissued on : " \
+ "%04d-%02d-%02d %02d:%02d:%02d", prefix,
+ crt->valid_from.year, crt->valid_from.mon,
+ crt->valid_from.day, crt->valid_from.hour,
+ crt->valid_from.min, crt->valid_from.sec );
+ SAFE_SNPRINTF();
+
+ ret = snprintf( p, n, "\n%sexpires on : " \
+ "%04d-%02d-%02d %02d:%02d:%02d", prefix,
+ crt->valid_to.year, crt->valid_to.mon,
+ crt->valid_to.day, crt->valid_to.hour,
+ crt->valid_to.min, crt->valid_to.sec );
+ SAFE_SNPRINTF();
+
+ ret = snprintf( p, n, "\n%ssigned using : RSA+", prefix );
+ SAFE_SNPRINTF();
+
+ switch( crt->sig_alg )
+ {
+ case SIG_RSA_MD2 : ret = snprintf( p, n, "MD2" ); break;
+ case SIG_RSA_MD4 : ret = snprintf( p, n, "MD4" ); break;
+ case SIG_RSA_MD5 : ret = snprintf( p, n, "MD5" ); break;
+ case SIG_RSA_SHA1 : ret = snprintf( p, n, "SHA1" ); break;
+ case SIG_RSA_SHA224 : ret = snprintf( p, n, "SHA224" ); break;
+ case SIG_RSA_SHA256 : ret = snprintf( p, n, "SHA256" ); break;
+ case SIG_RSA_SHA384 : ret = snprintf( p, n, "SHA384" ); break;
+ case SIG_RSA_SHA512 : ret = snprintf( p, n, "SHA512" ); break;
+ default: ret = snprintf( p, n, "???" ); break;
+ }
+ SAFE_SNPRINTF();
+
+ ret = snprintf( p, n, "\n%sRSA key size : %d bits\n", prefix,
+ (int) crt->rsa.N.n * (int) sizeof( unsigned long ) * 8 );
+ SAFE_SNPRINTF();
+
+ return( (int) ( size - n ) );
+}
+
+/* Compare a given OID string with an OID x509_buf * */
+#define OID_CMP(oid_str, oid_buf) \
+ ( ( OID_SIZE(oid_str) == (oid_buf)->len ) && \
+ memcmp( (oid_str), (oid_buf)->p, (oid_buf)->len) == 0)
+
+/*
+ * Return an informational string describing the given OID
+ */
+const char *x509_oid_get_description( x509_buf *oid )
+{
+ if ( oid == NULL )
+ return ( NULL );
+
+ else if( OID_CMP( OID_SERVER_AUTH, oid ) )
+ return( STRING_SERVER_AUTH );
+
+ else if( OID_CMP( OID_CLIENT_AUTH, oid ) )
+ return( STRING_CLIENT_AUTH );
+
+ else if( OID_CMP( OID_CODE_SIGNING, oid ) )
+ return( STRING_CODE_SIGNING );
+
+ else if( OID_CMP( OID_EMAIL_PROTECTION, oid ) )
+ return( STRING_EMAIL_PROTECTION );
+
+ else if( OID_CMP( OID_TIME_STAMPING, oid ) )
+ return( STRING_TIME_STAMPING );
+
+ else if( OID_CMP( OID_OCSP_SIGNING, oid ) )
+ return( STRING_OCSP_SIGNING );
+
+ return( NULL );
+}
+
+/* Return the x.y.z.... style numeric string for the given OID */
+int x509_oid_get_numeric_string( char *buf, size_t size, x509_buf *oid )
+{
+ int ret;
+ size_t i, n;
+ unsigned int value;
+ char *p;
+
+ p = buf;
+ n = size;
+
+ /* First byte contains first two dots */
+ if( oid->len > 0 )
+ {
+ ret = snprintf( p, n, "%d.%d", oid->p[0]/40, oid->p[0]%40 );
+ SAFE_SNPRINTF();
+ }
+
+ /* TODO: value can overflow in value. */
+ value = 0;
+ for( i = 1; i < oid->len; i++ )
+ {
+ value <<= 7;
+ value += oid->p[i] & 0x7F;
+
+ if( !( oid->p[i] & 0x80 ) )
+ {
+ /* Last byte */
+ ret = snprintf( p, n, ".%d", value );
+ SAFE_SNPRINTF();
+ value = 0;
+ }
+ }
+
+ return( (int) ( size - n ) );
+}
+
+/*
+ * Return an informational string about the CRL.
+ */
+int x509parse_crl_info( char *buf, size_t size, const char *prefix,
+ const x509_crl *crl )
+{
+ int ret;
+ size_t n;
+ char *p;
+ const x509_crl_entry *entry;
+
+ p = buf;
+ n = size;
+
+ ret = snprintf( p, n, "%sCRL version : %d",
+ prefix, crl->version );
+ SAFE_SNPRINTF();
+
+ ret = snprintf( p, n, "\n%sissuer name : ", prefix );
+ SAFE_SNPRINTF();
+ ret = x509parse_dn_gets( p, n, &crl->issuer );
+ SAFE_SNPRINTF();
+
+ ret = snprintf( p, n, "\n%sthis update : " \
+ "%04d-%02d-%02d %02d:%02d:%02d", prefix,
+ crl->this_update.year, crl->this_update.mon,
+ crl->this_update.day, crl->this_update.hour,
+ crl->this_update.min, crl->this_update.sec );
+ SAFE_SNPRINTF();
+
+ ret = snprintf( p, n, "\n%snext update : " \
+ "%04d-%02d-%02d %02d:%02d:%02d", prefix,
+ crl->next_update.year, crl->next_update.mon,
+ crl->next_update.day, crl->next_update.hour,
+ crl->next_update.min, crl->next_update.sec );
+ SAFE_SNPRINTF();
+
+ entry = &crl->entry;
+
+ ret = snprintf( p, n, "\n%sRevoked certificates:",
+ prefix );
+ SAFE_SNPRINTF();
+
+ while( entry != NULL && entry->raw.len != 0 )
+ {
+ ret = snprintf( p, n, "\n%sserial number: ",
+ prefix );
+ SAFE_SNPRINTF();
+
+ ret = x509parse_serial_gets( p, n, &entry->serial);
+ SAFE_SNPRINTF();
+
+ ret = snprintf( p, n, " revocation date: " \
+ "%04d-%02d-%02d %02d:%02d:%02d",
+ entry->revocation_date.year, entry->revocation_date.mon,
+ entry->revocation_date.day, entry->revocation_date.hour,
+ entry->revocation_date.min, entry->revocation_date.sec );
+ SAFE_SNPRINTF();
+
+ entry = entry->next;
+ }
+
+ ret = snprintf( p, n, "\n%ssigned using : RSA+", prefix );
+ SAFE_SNPRINTF();
+
+ switch( crl->sig_alg )
+ {
+ case SIG_RSA_MD2 : ret = snprintf( p, n, "MD2" ); break;
+ case SIG_RSA_MD4 : ret = snprintf( p, n, "MD4" ); break;
+ case SIG_RSA_MD5 : ret = snprintf( p, n, "MD5" ); break;
+ case SIG_RSA_SHA1 : ret = snprintf( p, n, "SHA1" ); break;
+ case SIG_RSA_SHA224 : ret = snprintf( p, n, "SHA224" ); break;
+ case SIG_RSA_SHA256 : ret = snprintf( p, n, "SHA256" ); break;
+ case SIG_RSA_SHA384 : ret = snprintf( p, n, "SHA384" ); break;
+ case SIG_RSA_SHA512 : ret = snprintf( p, n, "SHA512" ); break;
+ default: ret = snprintf( p, n, "???" ); break;
+ }
+ SAFE_SNPRINTF();
+
+ ret = snprintf( p, n, "\n" );
+ SAFE_SNPRINTF();
+
+ return( (int) ( size - n ) );
+}
+
+/*
+ * Return 0 if the x509_time is still valid, or 1 otherwise.
+ */
+int x509parse_time_expired( const x509_time *to )
+{
+ int year, mon, day;
+ int hour, min, sec;
+
+#if defined(_WIN32)
+ SYSTEMTIME st;
+
+ GetLocalTime(&st);
+
+ year = st.wYear;
+ mon = st.wMonth;
+ day = st.wDay;
+ hour = st.wHour;
+ min = st.wMinute;
+ sec = st.wSecond;
+#else
+ struct tm *lt;
+ time_t tt;
+
+ tt = time( NULL );
+ lt = localtime( &tt );
+
+ year = lt->tm_year + 1900;
+ mon = lt->tm_mon + 1;
+ day = lt->tm_mday;
+ hour = lt->tm_hour;
+ min = lt->tm_min;
+ sec = lt->tm_sec;
+#endif
+
+ if( year > to->year )
+ return( 1 );
+
+ if( year == to->year &&
+ mon > to->mon )
+ return( 1 );
+
+ if( year == to->year &&
+ mon == to->mon &&
+ day > to->day )
+ return( 1 );
+
+ if( year == to->year &&
+ mon == to->mon &&
+ day == to->day &&
+ hour > to->hour )
+ return( 1 );
+
+ if( year == to->year &&
+ mon == to->mon &&
+ day == to->day &&
+ hour == to->hour &&
+ min > to->min )
+ return( 1 );
+
+ if( year == to->year &&
+ mon == to->mon &&
+ day == to->day &&
+ hour == to->hour &&
+ min == to->min &&
+ sec > to->sec )
+ return( 1 );
+
+ return( 0 );
+}
+
+/*
+ * Return 1 if the certificate is revoked, or 0 otherwise.
+ */
+int x509parse_revoked( const x509_cert *crt, const x509_crl *crl )
+{
+ const x509_crl_entry *cur = &crl->entry;
+
+ while( cur != NULL && cur->serial.len != 0 )
+ {
+ if( crt->serial.len == cur->serial.len &&
+ memcmp( crt->serial.p, cur->serial.p, crt->serial.len ) == 0 )
+ {
+ if( x509parse_time_expired( &cur->revocation_date ) )
+ return( 1 );
+ }
+
+ cur = cur->next;
+ }
+
+ return( 0 );
+}
+
+/*
+ * Wrapper for x509 hashes.
+ *
+ * \param out Buffer to receive the hash (Should be at least 64 bytes)
+ */
+static void x509_hash( const unsigned char *in, size_t len, int alg,
+ unsigned char *out )
+{
+ switch( alg )
+ {
+#if defined(POLARSSL_MD2_C)
+ case SIG_RSA_MD2 : md2( in, len, out ); break;
+#endif
+#if defined(POLARSSL_MD4_C)
+ case SIG_RSA_MD4 : md4( in, len, out ); break;
+#endif
+#if defined(POLARSSL_MD5_C)
+ case SIG_RSA_MD5 : md5( in, len, out ); break;
+#endif
+#if defined(POLARSSL_SHA1_C)
+ case SIG_RSA_SHA1 : sha1( in, len, out ); break;
+#endif
+#if defined(POLARSSL_SHA2_C)
+ case SIG_RSA_SHA224 : sha2( in, len, out, 1 ); break;
+ case SIG_RSA_SHA256 : sha2( in, len, out, 0 ); break;
+#endif
+#if defined(POLARSSL_SHA4_C)
+ case SIG_RSA_SHA384 : sha4( in, len, out, 1 ); break;
+ case SIG_RSA_SHA512 : sha4( in, len, out, 0 ); break;
+#endif
+ default:
+ memset( out, '\xFF', 64 );
+ break;
+ }
+}
+
+/*
+ * Check that the given certificate is valid accoring to the CRL.
+ */
+static int x509parse_verifycrl(x509_cert *crt, x509_cert *ca,
+ x509_crl *crl_list)
+{
+ int flags = 0;
+ int hash_id;
+ unsigned char hash[64];
+
+ /*
+ * TODO: What happens if no CRL is present?
+ * Suggestion: Revocation state should be unknown if no CRL is present.
+ * For backwards compatibility this is not yet implemented.
+ */
+
+ while( ca != NULL && crl_list != NULL && crl_list->version != 0 )
+ {
+ if( crl_list->issuer_raw.len != ca->subject_raw.len ||
+ memcmp( crl_list->issuer_raw.p, ca->subject_raw.p,
+ crl_list->issuer_raw.len ) != 0 )
+ {
+ crl_list = crl_list->next;
+ continue;
+ }
+
+ /*
+ * Check if CRL is correctly signed by the trusted CA
+ */
+ hash_id = crl_list->sig_alg;
+
+ x509_hash( crl_list->tbs.p, crl_list->tbs.len, hash_id, hash );
+
+ if( !rsa_pkcs1_verify( &ca->rsa, RSA_PUBLIC, hash_id,
+ 0, hash, crl_list->sig.p ) == 0 )
+ {
+ /*
+ * CRL is not trusted
+ */
+ flags |= BADCRL_NOT_TRUSTED;
+ break;
+ }
+
+ /*
+ * Check for validity of CRL (Do not drop out)
+ */
+ if( x509parse_time_expired( &crl_list->next_update ) )
+ flags |= BADCRL_EXPIRED;
+
+ /*
+ * Check if certificate is revoked
+ */
+ if( x509parse_revoked(crt, crl_list) )
+ {
+ flags |= BADCERT_REVOKED;
+ break;
+ }
+
+ crl_list = crl_list->next;
+ }
+ return flags;
+}
+
+/*
+ * Verify the certificate validity
+ */
+int x509parse_verify( x509_cert *crt,
+ x509_cert *trust_ca,
+ x509_crl *ca_crl,
+ const char *cn, int *flags,
+ int (*f_vrfy)(void *, x509_cert *, int, int),
+ void *p_vrfy )
+{
+ size_t cn_len;
+ int hash_id;
+ int pathlen;
+ x509_cert *parent;
+ x509_name *name;
+ unsigned char hash[64];
+
+ *flags = 0;
+
+ if( x509parse_time_expired( &crt->valid_to ) )
+ *flags = BADCERT_EXPIRED;
+
+ if( cn != NULL )
+ {
+ name = &crt->subject;
+ cn_len = strlen( cn );
+
+ while( name != NULL )
+ {
+ if( memcmp( name->oid.p, OID_CN, 3 ) == 0 &&
+ memcmp( name->val.p, cn, cn_len ) == 0 &&
+ name->val.len == cn_len )
+ break;
+
+ name = name->next;
+ }
+
+ if( name == NULL )
+ *flags |= BADCERT_CN_MISMATCH;
+ }
+
+ /*
+ * Iterate upwards in the given cert chain,
+ * ignoring any upper cert with CA != TRUE.
+ */
+ parent = crt->next;
+
+ pathlen = 1;
+
+ while( parent != NULL && parent->version != 0 )
+ {
+ if( parent->ca_istrue == 0 ||
+ crt->issuer_raw.len != parent->subject_raw.len ||
+ memcmp( crt->issuer_raw.p, parent->subject_raw.p,
+ crt->issuer_raw.len ) != 0 )
+ {
+ parent = parent->next;
+ continue;
+ }
+
+ hash_id = crt->sig_alg;
+
+ x509_hash( crt->tbs.p, crt->tbs.len, hash_id, hash );
+
+ if( rsa_pkcs1_verify( &parent->rsa, RSA_PUBLIC, hash_id, 0, hash,
+ crt->sig.p ) != 0 )
+ *flags |= BADCERT_NOT_TRUSTED;
+
+ /* Check trusted CA's CRL for the given crt */
+ *flags |= x509parse_verifycrl(crt, parent, ca_crl);
+
+ /* crt is verified to be a child of the parent cur, call verify callback */
+ if( NULL != f_vrfy )
+ {
+ if( f_vrfy( p_vrfy, crt, pathlen - 1, ( *flags == 0 ) ) != 0 )
+ return( POLARSSL_ERR_X509_CERT_VERIFY_FAILED );
+ else
+ *flags = 0;
+ }
+ else if( *flags != 0 )
+ return( POLARSSL_ERR_X509_CERT_VERIFY_FAILED );
+
+ pathlen++;
+
+ crt = parent;
+ parent = crt->next;
+ }
+
+ /*
+ * Attempt to validate topmost cert with our CA chain.
+ */
+ *flags |= BADCERT_NOT_TRUSTED;
+
+ while( trust_ca != NULL && trust_ca->version != 0 )
+ {
+ if( crt->issuer_raw.len != trust_ca->subject_raw.len ||
+ memcmp( crt->issuer_raw.p, trust_ca->subject_raw.p,
+ crt->issuer_raw.len ) != 0 )
+ {
+ trust_ca = trust_ca->next;
+ continue;
+ }
+
+ if( trust_ca->max_pathlen > 0 &&
+ trust_ca->max_pathlen < pathlen )
+ break;
+
+ hash_id = crt->sig_alg;
+
+ x509_hash( crt->tbs.p, crt->tbs.len, hash_id, hash );
+
+ if( rsa_pkcs1_verify( &trust_ca->rsa, RSA_PUBLIC, hash_id,
+ 0, hash, crt->sig.p ) == 0 )
+ {
+ /*
+ * cert. is signed by a trusted CA
+ */
+ *flags &= ~BADCERT_NOT_TRUSTED;
+ break;
+ }
+
+ trust_ca = trust_ca->next;
+ }
+
+ /* Check trusted CA's CRL for the given crt */
+ *flags |= x509parse_verifycrl( crt, trust_ca, ca_crl );
+
+ /* Verification succeeded, call callback on top cert */
+ if( NULL != f_vrfy )
+ {
+ if( f_vrfy(p_vrfy, crt, pathlen-1, ( *flags == 0 ) ) != 0 )
+ return( POLARSSL_ERR_X509_CERT_VERIFY_FAILED );
+ else
+ *flags = 0;
+ }
+ else if( *flags != 0 )
+ return( POLARSSL_ERR_X509_CERT_VERIFY_FAILED );
+
+ return( 0 );
+}
+
+/*
+ * Unallocate all certificate data
+ */
+void x509_free( x509_cert *crt )
+{
+ x509_cert *cert_cur = crt;
+ x509_cert *cert_prv;
+ x509_name *name_cur;
+ x509_name *name_prv;
+ x509_sequence *seq_cur;
+ x509_sequence *seq_prv;
+
+ if( crt == NULL )
+ return;
+
+ do
+ {
+ rsa_free( &cert_cur->rsa );
+
+ name_cur = cert_cur->issuer.next;
+ while( name_cur != NULL )
+ {
+ name_prv = name_cur;
+ name_cur = name_cur->next;
+ memset( name_prv, 0, sizeof( x509_name ) );
+ free( name_prv );
+ }
+
+ name_cur = cert_cur->subject.next;
+ while( name_cur != NULL )
+ {
+ name_prv = name_cur;
+ name_cur = name_cur->next;
+ memset( name_prv, 0, sizeof( x509_name ) );
+ free( name_prv );
+ }
+
+ seq_cur = cert_cur->ext_key_usage.next;
+ while( seq_cur != NULL )
+ {
+ seq_prv = seq_cur;
+ seq_cur = seq_cur->next;
+ memset( seq_prv, 0, sizeof( x509_sequence ) );
+ free( seq_prv );
+ }
+
+ if( cert_cur->raw.p != NULL )
+ {
+ memset( cert_cur->raw.p, 0, cert_cur->raw.len );
+ free( cert_cur->raw.p );
+ }
+
+ cert_cur = cert_cur->next;
+ }
+ while( cert_cur != NULL );
+
+ cert_cur = crt;
+ do
+ {
+ cert_prv = cert_cur;
+ cert_cur = cert_cur->next;
+
+ memset( cert_prv, 0, sizeof( x509_cert ) );
+ if( cert_prv != crt )
+ free( cert_prv );
+ }
+ while( cert_cur != NULL );
+}
+
+/*
+ * Unallocate all CRL data
+ */
+void x509_crl_free( x509_crl *crl )
+{
+ x509_crl *crl_cur = crl;
+ x509_crl *crl_prv;
+ x509_name *name_cur;
+ x509_name *name_prv;
+ x509_crl_entry *entry_cur;
+ x509_crl_entry *entry_prv;
+
+ if( crl == NULL )
+ return;
+
+ do
+ {
+ name_cur = crl_cur->issuer.next;
+ while( name_cur != NULL )
+ {
+ name_prv = name_cur;
+ name_cur = name_cur->next;
+ memset( name_prv, 0, sizeof( x509_name ) );
+ free( name_prv );
+ }
+
+ entry_cur = crl_cur->entry.next;
+ while( entry_cur != NULL )
+ {
+ entry_prv = entry_cur;
+ entry_cur = entry_cur->next;
+ memset( entry_prv, 0, sizeof( x509_crl_entry ) );
+ free( entry_prv );
+ }
+
+ if( crl_cur->raw.p != NULL )
+ {
+ memset( crl_cur->raw.p, 0, crl_cur->raw.len );
+ free( crl_cur->raw.p );
+ }
+
+ crl_cur = crl_cur->next;
+ }
+ while( crl_cur != NULL );
+
+ crl_cur = crl;
+ do
+ {
+ crl_prv = crl_cur;
+ crl_cur = crl_cur->next;
+
+ memset( crl_prv, 0, sizeof( x509_crl ) );
+ if( crl_prv != crl )
+ free( crl_prv );
+ }
+ while( crl_cur != NULL );
+}
+
+#if defined(POLARSSL_SELF_TEST)
+
+#include "polarssl/certs.h"
+
+/*
+ * Checkup routine
+ */
+int x509_self_test( int verbose )
+{
+#if defined(POLARSSL_CERTS_C) && defined(POLARSSL_MD5_C)
+ int ret;
+ int flags;
+ size_t i, j;
+ x509_cert cacert;
+ x509_cert clicert;
+ rsa_context rsa;
+#if defined(POLARSSL_DHM_C)
+ dhm_context dhm;
+#endif
+
+ if( verbose != 0 )
+ printf( " X.509 certificate load: " );
+
+ memset( &clicert, 0, sizeof( x509_cert ) );
+
+ ret = x509parse_crt( &clicert, (unsigned char *) test_cli_crt,
+ strlen( test_cli_crt ) );
+ if( ret != 0 )
+ {
+ if( verbose != 0 )
+ printf( "failed\n" );
+
+ return( ret );
+ }
+
+ memset( &cacert, 0, sizeof( x509_cert ) );
+
+ ret = x509parse_crt( &cacert, (unsigned char *) test_ca_crt,
+ strlen( test_ca_crt ) );
+ if( ret != 0 )
+ {
+ if( verbose != 0 )
+ printf( "failed\n" );
+
+ return( ret );
+ }
+
+ if( verbose != 0 )
+ printf( "passed\n X.509 private key load: " );
+
+ i = strlen( test_ca_key );
+ j = strlen( test_ca_pwd );
+
+ rsa_init( &rsa, RSA_PKCS_V15, 0 );
+
+ if( ( ret = x509parse_key( &rsa,
+ (unsigned char *) test_ca_key, i,
+ (unsigned char *) test_ca_pwd, j ) ) != 0 )
+ {
+ if( verbose != 0 )
+ printf( "failed\n" );
+
+ return( ret );
+ }
+
+ if( verbose != 0 )
+ printf( "passed\n X.509 signature verify: ");
+
+ ret = x509parse_verify( &clicert, &cacert, NULL, "PolarSSL Client 2", &flags, NULL, NULL );
+ if( ret != 0 )
+ {
+ printf("%02x", flags);
+ if( verbose != 0 )
+ printf( "failed\n" );
+
+ return( ret );
+ }
+
+#if defined(POLARSSL_DHM_C)
+ if( verbose != 0 )
+ printf( "passed\n X.509 DHM parameter load: " );
+
+ i = strlen( test_dhm_params );
+ j = strlen( test_ca_pwd );
+
+ if( ( ret = x509parse_dhm( &dhm, (unsigned char *) test_dhm_params, i ) ) != 0 )
+ {
+ if( verbose != 0 )
+ printf( "failed\n" );
+
+ return( ret );
+ }
+
+ if( verbose != 0 )
+ printf( "passed\n\n" );
+#endif
+
+ x509_free( &cacert );
+ x509_free( &clicert );
+ rsa_free( &rsa );
+#if defined(POLARSSL_DHM_C)
+ dhm_free( &dhm );
+#endif
+
+ return( 0 );
+#else
+ ((void) verbose);
+ return( POLARSSL_ERR_X509_FEATURE_UNAVAILABLE );
+#endif
+}
+
+#endif
+
+#endif
--- /dev/null
+/*
+ * An 32-bit implementation of the XTEA algorithm
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "polarssl/config.h"
+
+#if defined(POLARSSL_XTEA_C)
+
+#include "polarssl/xtea.h"
+
+/*
+ * 32-bit integer manipulation macros (big endian)
+ */
+#ifndef GET_ULONG_BE
+#define GET_ULONG_BE(n,b,i) \
+{ \
+ (n) = ( (unsigned long) (b)[(i) ] << 24 ) \
+ | ( (unsigned long) (b)[(i) + 1] << 16 ) \
+ | ( (unsigned long) (b)[(i) + 2] << 8 ) \
+ | ( (unsigned long) (b)[(i) + 3] ); \
+}
+#endif
+
+#ifndef PUT_ULONG_BE
+#define PUT_ULONG_BE(n,b,i) \
+{ \
+ (b)[(i) ] = (unsigned char) ( (n) >> 24 ); \
+ (b)[(i) + 1] = (unsigned char) ( (n) >> 16 ); \
+ (b)[(i) + 2] = (unsigned char) ( (n) >> 8 ); \
+ (b)[(i) + 3] = (unsigned char) ( (n) ); \
+}
+#endif
+
+/*
+ * XTEA key schedule
+ */
+void xtea_setup( xtea_context *ctx, unsigned char key[16] )
+{
+ int i;
+
+ memset(ctx, 0, sizeof(xtea_context));
+
+ for( i = 0; i < 4; i++ )
+ {
+ GET_ULONG_BE( ctx->k[i], key, i << 2 );
+ }
+}
+
+/*
+ * XTEA encrypt function
+ */
+int xtea_crypt_ecb( xtea_context *ctx, int mode, unsigned char input[8],
+ unsigned char output[8])
+{
+ uint32_t *k, v0, v1, i;
+
+ k = ctx->k;
+
+ GET_ULONG_BE( v0, input, 0 );
+ GET_ULONG_BE( v1, input, 4 );
+
+ if( mode == XTEA_ENCRYPT )
+ {
+ uint32_t sum = 0, delta = 0x9E3779B9;
+
+ for( i = 0; i < 32; i++ )
+ {
+ v0 += (((v1 << 4) ^ (v1 >> 5)) + v1) ^ (sum + k[sum & 3]);
+ sum += delta;
+ v1 += (((v0 << 4) ^ (v0 >> 5)) + v0) ^ (sum + k[(sum>>11) & 3]);
+ }
+ }
+ else /* XTEA_DECRYPT */
+ {
+ uint32_t delta = 0x9E3779B9, sum = delta * 32;
+
+ for( i = 0; i < 32; i++ )
+ {
+ v1 -= (((v0 << 4) ^ (v0 >> 5)) + v0) ^ (sum + k[(sum>>11) & 3]);
+ sum -= delta;
+ v0 -= (((v1 << 4) ^ (v1 >> 5)) + v1) ^ (sum + k[sum & 3]);
+ }
+ }
+
+ PUT_ULONG_BE( v0, output, 0 );
+ PUT_ULONG_BE( v1, output, 4 );
+
+ return( 0 );
+}
+
+/*
+ * XTEA-CBC buffer encryption/decryption
+ */
+int xtea_crypt_cbc( xtea_context *ctx,
+ int mode,
+ size_t length,
+ unsigned char iv[8],
+ unsigned char *input,
+ unsigned char *output)
+{
+ int i;
+ unsigned char temp[8];
+
+ if(length % 8)
+ return( POLARSSL_ERR_XTEA_INVALID_INPUT_LENGTH );
+
+ if( mode == XTEA_DECRYPT )
+ {
+ while( length > 0 )
+ {
+ memcpy( temp, input, 8 );
+ xtea_crypt_ecb( ctx, mode, input, output );
+
+ for(i = 0; i < 8; i++)
+ output[i] = (unsigned char)( output[i] ^ iv[i] );
+
+ memcpy( iv, temp, 8 );
+
+ input += 8;
+ output += 8;
+ length -= 8;
+ }
+ }
+ else
+ {
+ while( length > 0 )
+ {
+ for( i = 0; i < 8; i++ )
+ output[i] = (unsigned char)( input[i] ^ iv[i] );
+
+ xtea_crypt_ecb( ctx, mode, output, output );
+ memcpy( iv, output, 8 );
+
+ input += 8;
+ output += 8;
+ length -= 8;
+ }
+ }
+
+ return( 0 );
+}
+
+#if defined(POLARSSL_SELF_TEST)
+
+#include <string.h>
+#include <stdio.h>
+
+/*
+ * XTEA tests vectors (non-official)
+ */
+
+static const unsigned char xtea_test_key[6][16] =
+{
+ { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b,
+ 0x0c, 0x0d, 0x0e, 0x0f },
+ { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b,
+ 0x0c, 0x0d, 0x0e, 0x0f },
+ { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b,
+ 0x0c, 0x0d, 0x0e, 0x0f },
+ { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00 },
+ { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00 },
+ { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00 }
+};
+
+static const unsigned char xtea_test_pt[6][8] =
+{
+ { 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48 },
+ { 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41 },
+ { 0x5a, 0x5b, 0x6e, 0x27, 0x89, 0x48, 0xd7, 0x7f },
+ { 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48 },
+ { 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41 },
+ { 0x70, 0xe1, 0x22, 0x5d, 0x6e, 0x4e, 0x76, 0x55 }
+};
+
+static const unsigned char xtea_test_ct[6][8] =
+{
+ { 0x49, 0x7d, 0xf3, 0xd0, 0x72, 0x61, 0x2c, 0xb5 },
+ { 0xe7, 0x8f, 0x2d, 0x13, 0x74, 0x43, 0x41, 0xd8 },
+ { 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41 },
+ { 0xa0, 0x39, 0x05, 0x89, 0xf8, 0xb8, 0xef, 0xa5 },
+ { 0xed, 0x23, 0x37, 0x5a, 0x82, 0x1a, 0x8c, 0x2d },
+ { 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41 }
+};
+
+/*
+ * Checkup routine
+ */
+int xtea_self_test( int verbose )
+{
+ int i;
+ unsigned char buf[8];
+ xtea_context ctx;
+
+ for( i = 0; i < 6; i++ )
+ {
+ if( verbose != 0 )
+ printf( " XTEA test #%d: ", i + 1 );
+
+ memcpy( buf, xtea_test_pt[i], 8 );
+
+ xtea_setup( &ctx, (unsigned char *) xtea_test_key[i] );
+ xtea_crypt_ecb( &ctx, XTEA_ENCRYPT, buf, buf );
+
+ if( memcmp( buf, xtea_test_ct[i], 8 ) != 0 )
+ {
+ if( verbose != 0 )
+ printf( "failed\n" );
+
+ return( 1 );
+ }
+
+ if( verbose != 0 )
+ printf( "passed\n" );
+ }
+
+ if( verbose != 0 )
+ printf( "\n" );
+
+ return( 0 );
+}
+
+#endif
+
+#endif
projects / pdns / commitdiff