From b83fbba9f31f10c58ef2dab9272a429f36c5da81 Mon Sep 17 00:00:00 2001 From: Scott MacVicar Date: Mon, 2 Jun 2008 12:24:23 +0000 Subject: [PATCH] Add sha224 support. --- ext/hash/hash.c | 1 + ext/hash/hash_sha.c | 112 ++++++++++++++++++++++++++++++++++++- ext/hash/php_hash.h | 1 + ext/hash/php_hash_sha.h | 11 ++++ ext/hash/tests/sha224.phpt | 22 ++++++++ 5 files changed, 144 insertions(+), 3 deletions(-) create mode 100644 ext/hash/tests/sha224.phpt diff --git a/ext/hash/hash.c b/ext/hash/hash.c index 6e4f116a2d..4de89d436a 100644 --- a/ext/hash/hash.c +++ b/ext/hash/hash.c @@ -574,6 +574,7 @@ PHP_MINIT_FUNCTION(hash) php_hash_register_algo("md4", &php_hash_md4_ops); php_hash_register_algo("md5", &php_hash_md5_ops); php_hash_register_algo("sha1", &php_hash_sha1_ops); + php_hash_register_algo("sha224", &php_hash_sha224_ops); php_hash_register_algo("sha256", &php_hash_sha256_ops); php_hash_register_algo("sha384", &php_hash_sha384_ops); php_hash_register_algo("sha512", &php_hash_sha512_ops); diff --git a/ext/hash/hash_sha.c b/ext/hash/hash_sha.c index c70c320d62..f8736ecb21 100644 --- a/ext/hash/hash_sha.c +++ b/ext/hash/hash_sha.c @@ -406,7 +406,7 @@ PHP_HASH_API void PHP_SHA1Final(unsigned char digest[20], PHP_SHA1_CTX * context #endif /* PHP_HASH_SHA1_NOT_IN_CORE */ -/* sha256 */ +/* sha224/sha256 */ const php_hash_ops php_hash_sha256_ops = { (php_hash_init_func_t) PHP_SHA256Init, @@ -418,6 +418,16 @@ const php_hash_ops php_hash_sha256_ops = { sizeof(PHP_SHA256_CTX) }; +const php_hash_ops php_hash_sha224_ops = { + (php_hash_init_func_t) PHP_SHA224Init, + (php_hash_update_func_t) PHP_SHA224Update, + (php_hash_final_func_t) PHP_SHA224Final, + (php_hash_copy_func_t) php_hash_copy, + 28, + 64, + sizeof(PHP_SHA224_CTX) +}; + #define ROTR32(b,x) ((x >> b) | (x << (32 - b))) #define ROTR64(b,x) ((x >> b) | (x << (64 - b))) #define SHR(b, x) (x >> b) @@ -505,6 +515,102 @@ static void SHA256Transform(php_hash_uint32 state[8], const unsigned char block[ } /* }}} */ +/* {{{ PHP_SHA224Init + * SHA224 initialization. Begins an SHA224 operation, writing a new context. + */ +PHP_HASH_API void PHP_SHA224Init(PHP_SHA224_CTX * context) +{ + context->count[0] = context->count[1] = 0; + /* Load magic initialization constants. + */ + context->state[0] = 0xc1059ed8; + context->state[1] = 0x367cd507; + context->state[2] = 0x3070dd17; + context->state[3] = 0xf70e5939; + context->state[4] = 0xffc00b31; + context->state[5] = 0x68581511; + context->state[6] = 0x64f98fa7; + context->state[7] = 0xbefa4fa4; +} +/* }}} */ + +/* {{{ PHP_SHA224Update + SHA224 block update operation. Continues an SHA224 message-digest + operation, processing another message block, and updating the + context. + */ +PHP_HASH_API void PHP_SHA224Update(PHP_SHA224_CTX * context, const unsigned char *input, unsigned int inputLen) +{ + unsigned int i, index, partLen; + + /* Compute number of bytes mod 64 */ + index = (unsigned int) ((context->count[0] >> 3) & 0x3F); + + /* Update number of bits */ + if ((context->count[0] += ((php_hash_uint32) inputLen << 3)) < ((php_hash_uint32) inputLen << 3)) { + context->count[1]++; + } + context->count[1] += ((php_hash_uint32) inputLen >> 29); + + partLen = 64 - index; + + /* Transform as many times as possible. + */ + if (inputLen >= partLen) { + memcpy((unsigned char*) & context->buffer[index], (unsigned char*) input, partLen); + SHA256Transform(context->state, context->buffer); + + for (i = partLen; i + 63 < inputLen; i += 64) { + SHA256Transform(context->state, &input[i]); + } + + index = 0; + } else { + i = 0; + } + + /* Buffer remaining input */ + memcpy((unsigned char*) & context->buffer[index], (unsigned char*) & input[i], inputLen - i); +} +/* }}} */ + +/* {{{ PHP_SHA224Final + SHA224 finalization. Ends an SHA224 message-digest operation, writing the + the message digest and zeroizing the context. + */ +PHP_HASH_API void PHP_SHA224Final(unsigned char digest[28], PHP_SHA224_CTX * context) +{ + unsigned char bits[8]; + unsigned int index, padLen; + + /* Save number of bits */ + bits[7] = (unsigned char) (context->count[0] & 0xFF); + bits[6] = (unsigned char) ((context->count[0] >> 8) & 0xFF); + bits[5] = (unsigned char) ((context->count[0] >> 16) & 0xFF); + bits[4] = (unsigned char) ((context->count[0] >> 24) & 0xFF); + bits[3] = (unsigned char) (context->count[1] & 0xFF); + bits[2] = (unsigned char) ((context->count[1] >> 8) & 0xFF); + bits[1] = (unsigned char) ((context->count[1] >> 16) & 0xFF); + bits[0] = (unsigned char) ((context->count[1] >> 24) & 0xFF); + + /* Pad out to 56 mod 64. + */ + index = (unsigned int) ((context->count[0] >> 3) & 0x3f); + padLen = (index < 56) ? (56 - index) : (120 - index); + PHP_SHA224Update(context, PADDING, padLen); + + /* Append length (before padding) */ + PHP_SHA224Update(context, bits, 8); + + /* Store state in digest */ + SHAEncode32(digest, context->state, 28); + + /* Zeroize sensitive information. + */ + memset((unsigned char*) context, 0, sizeof(*context)); +} +/* }}} */ + /* {{{ PHP_SHA256Update SHA256 block update operation. Continues an SHA256 message-digest operation, processing another message block, and updating the @@ -874,10 +980,10 @@ PHP_HASH_API void PHP_SHA512Update(PHP_SHA512_CTX * context, const unsigned char /* }}} */ /* {{{ PHP_SHA512Final - SHA512 finalization. Ends an SHA384 message-digest operation, writing the + SHA512 finalization. Ends an SHA512 message-digest operation, writing the the message digest and zeroizing the context. */ -PHP_HASH_API void PHP_SHA512Final(unsigned char digest[48], PHP_SHA512_CTX * context) +PHP_HASH_API void PHP_SHA512Final(unsigned char digest[64], PHP_SHA512_CTX * context) { unsigned char bits[16]; unsigned int index, padLen; diff --git a/ext/hash/php_hash.h b/ext/hash/php_hash.h index c8d222cb30..d67896bab0 100644 --- a/ext/hash/php_hash.h +++ b/ext/hash/php_hash.h @@ -58,6 +58,7 @@ extern const php_hash_ops php_hash_md2_ops; extern const php_hash_ops php_hash_md4_ops; extern const php_hash_ops php_hash_md5_ops; extern const php_hash_ops php_hash_sha1_ops; +extern const php_hash_ops php_hash_sha224_ops; extern const php_hash_ops php_hash_sha256_ops; extern const php_hash_ops php_hash_sha384_ops; extern const php_hash_ops php_hash_sha512_ops; diff --git a/ext/hash/php_hash_sha.h b/ext/hash/php_hash_sha.h index 94a7301958..c049d3e30d 100644 --- a/ext/hash/php_hash_sha.h +++ b/ext/hash/php_hash_sha.h @@ -50,6 +50,17 @@ PHP_FUNCTION(sha1_file); #endif /* PHP_HASH_SHA1_NOT_IN_CORE */ +/* SHA224 context. */ +typedef struct { + php_hash_uint32 state[8]; /* state */ + php_hash_uint32 count[2]; /* number of bits, modulo 2^64 */ + unsigned char buffer[64]; /* input buffer */ +} PHP_SHA224_CTX; + +PHP_HASH_API void PHP_SHA224Init(PHP_SHA224_CTX *); +PHP_HASH_API void PHP_SHA224Update(PHP_SHA224_CTX *, const unsigned char *, unsigned int); +PHP_HASH_API void PHP_SHA224Final(unsigned char[28], PHP_SHA224_CTX *); + /* SHA256 context. */ typedef struct { php_hash_uint32 state[8]; /* state */ diff --git a/ext/hash/tests/sha224.phpt b/ext/hash/tests/sha224.phpt new file mode 100644 index 0000000000..dd3231fe9b --- /dev/null +++ b/ext/hash/tests/sha224.phpt @@ -0,0 +1,22 @@ +--TEST-- +sha256 algorithm +--SKIPIF-- + +--FILE-- +