From: Dr. Stephen Henson Date: Thu, 17 Mar 2011 16:55:24 +0000 (+0000) Subject: Implement health checks needed by SP800-90. X-Git-Tag: OpenSSL-fips-2_0-rc1~660 X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=96ec46f7c03a94f74cc05ebdf7a8889174acb28d;p=openssl Implement health checks needed by SP800-90. Fix warnings. Instantiate DRBGs at maximum strength. --- diff --git a/CHANGES b/CHANGES index 7ab81cb908..9395529e39 100644 --- a/CHANGES +++ b/CHANGES @@ -4,6 +4,11 @@ Changes between 1.0.1 and 1.1.0 [xx XXX xxxx] + *) Extensive self tests and health checking required by SP800-90 DRBG. + Remove strength parameter from FIPS_drbg_instantiate and always + instantiate at maximum supported strength. + [Steve Henson] + *) Add SRP support. [Tom Wu and Ben Laurie] diff --git a/crypto/fips_err.h b/crypto/fips_err.h index 0995b35deb..4b75c2dc0b 100644 --- a/crypto/fips_err.h +++ b/crypto/fips_err.h @@ -84,6 +84,7 @@ static ERR_STRING_DATA FIPS_str_functs[]= {ERR_FUNC(FIPS_F_FIPS_CIPHERINIT), "FIPS_CIPHERINIT"}, {ERR_FUNC(FIPS_F_FIPS_DIGESTINIT), "FIPS_DIGESTINIT"}, {ERR_FUNC(FIPS_F_FIPS_DRBG_GENERATE), "FIPS_drbg_generate"}, +{ERR_FUNC(FIPS_F_FIPS_DRBG_HEALTH_CHECK), "FIPS_DRBG_HEALTH_CHECK"}, {ERR_FUNC(FIPS_F_FIPS_DRBG_INIT), "FIPS_drbg_init"}, {ERR_FUNC(FIPS_F_FIPS_DRBG_INSTANTIATE), "FIPS_drbg_instantiate"}, {ERR_FUNC(FIPS_F_FIPS_DRBG_NEW), "FIPS_drbg_new"}, @@ -117,6 +118,8 @@ static ERR_STRING_DATA FIPS_str_reasons[]= {ERR_REASON(FIPS_R_CANNOT_READ_EXE) ,"cannot read exe"}, {ERR_REASON(FIPS_R_CANNOT_READ_EXE_DIGEST),"cannot read exe digest"}, {ERR_REASON(FIPS_R_CONTRADICTING_EVIDENCE),"contradicting evidence"}, +{ERR_REASON(FIPS_R_ENTROPY_ERROR_UNDETECTED),"entropy error undetected"}, +{ERR_REASON(FIPS_R_ENTROPY_NOT_REQUESTED_FOR_RESEED),"entropy not requested for reseed"}, {ERR_REASON(FIPS_R_ERROR_INITIALISING_DRBG),"error initialising drbg"}, {ERR_REASON(FIPS_R_ERROR_INSTANTIATING_DRBG),"error instantiating drbg"}, {ERR_REASON(FIPS_R_ERROR_RETRIEVING_ENTROPY),"error retrieving entropy"}, @@ -127,7 +130,9 @@ static ERR_STRING_DATA FIPS_str_reasons[]= {ERR_REASON(FIPS_R_FINGERPRINT_DOES_NOT_MATCH_SEGMENT_ALIASING),"fingerprint does not match segment aliasing"}, {ERR_REASON(FIPS_R_FIPS_MODE_ALREADY_SET),"fips mode already set"}, {ERR_REASON(FIPS_R_FIPS_SELFTEST_FAILED) ,"fips selftest failed"}, +{ERR_REASON(FIPS_R_FUNCTION_ERROR) ,"function error"}, {ERR_REASON(FIPS_R_GENERATE_ERROR) ,"generate error"}, +{ERR_REASON(FIPS_R_GENERATE_ERROR_UNDETECTED),"generate error undetected"}, {ERR_REASON(FIPS_R_INSTANTIATE_ERROR) ,"instantiate error"}, {ERR_REASON(FIPS_R_INSUFFICIENT_SECURITY_STRENGTH),"insufficient security strength"}, {ERR_REASON(FIPS_R_INVALID_KEY_LENGTH) ,"invalid key length"}, @@ -136,13 +141,18 @@ static ERR_STRING_DATA FIPS_str_reasons[]= {ERR_REASON(FIPS_R_NON_FIPS_METHOD) ,"non fips method"}, {ERR_REASON(FIPS_R_NOT_INSTANTIATED) ,"not instantiated"}, {ERR_REASON(FIPS_R_PAIRWISE_TEST_FAILED) ,"pairwise test failed"}, +{ERR_REASON(FIPS_R_PERSONALISATION_ERROR_UNDETECTED),"personalisation error undetected"}, {ERR_REASON(FIPS_R_PERSONALISATION_STRING_TOO_LONG),"personalisation string too long"}, +{ERR_REASON(FIPS_R_REQUEST_LENGTH_ERROR_UNDETECTED),"request length error undetected"}, {ERR_REASON(FIPS_R_REQUEST_TOO_LARGE_FOR_DRBG),"request too large for drbg"}, +{ERR_REASON(FIPS_R_RESEED_COUNTER_ERROR) ,"reseed counter error"}, {ERR_REASON(FIPS_R_RESEED_ERROR) ,"reseed error"}, {ERR_REASON(FIPS_R_RSA_DECRYPT_ERROR) ,"rsa decrypt error"}, {ERR_REASON(FIPS_R_RSA_ENCRYPT_ERROR) ,"rsa encrypt error"}, {ERR_REASON(FIPS_R_SELFTEST_FAILED) ,"selftest failed"}, +{ERR_REASON(FIPS_R_STRENGTH_ERROR_UNDETECTED),"strength error undetected"}, {ERR_REASON(FIPS_R_TEST_FAILURE) ,"test failure"}, +{ERR_REASON(FIPS_R_UNINSTANTIATE_ZEROISE_ERROR),"uninstantiate zeroise error"}, {ERR_REASON(FIPS_R_UNSUPPORTED_DRBG_TYPE),"unsupported drbg type"}, {ERR_REASON(FIPS_R_UNSUPPORTED_PLATFORM) ,"unsupported platform"}, {0,NULL} diff --git a/fips/ecdh/fips_ecdhvs.c b/fips/ecdh/fips_ecdhvs.c index c68daf2e94..38178f5eea 100644 --- a/fips/ecdh/fips_ecdhvs.c +++ b/fips/ecdh/fips_ecdhvs.c @@ -279,7 +279,7 @@ int main(int argc,char **argv) int argn = argc - 1; FILE *in, *out; char buf[2048], lbuf[2048]; - unsigned char *rhash; + unsigned char *rhash = NULL; long rhashlen; BIGNUM *cx = NULL, *cy = NULL; BIGNUM *id = NULL, *ix = NULL, *iy = NULL; diff --git a/fips/ecdsa/fips_ecdsavs.c b/fips/ecdsa/fips_ecdsavs.c index 379df65501..2492ee42c0 100644 --- a/fips/ecdsa/fips_ecdsavs.c +++ b/fips/ecdsa/fips_ecdsavs.c @@ -460,7 +460,7 @@ static int SigVer(FILE *in, FILE *out) int main(int argc, char **argv) { - FILE *in, *out; + FILE *in = NULL, *out = NULL; const char *cmd = argv[1]; int rv = 0; fips_set_error_print(); diff --git a/fips/fips.h b/fips/fips.h index cd75e19562..af36f03236 100644 --- a/fips/fips.h +++ b/fips/fips.h @@ -194,6 +194,7 @@ void ERR_load_FIPS_strings(void); #define FIPS_F_FIPS_CIPHERINIT 128 #define FIPS_F_FIPS_DIGESTINIT 127 #define FIPS_F_FIPS_DRBG_GENERATE 132 +#define FIPS_F_FIPS_DRBG_HEALTH_CHECK 137 #define FIPS_F_FIPS_DRBG_INIT 136 #define FIPS_F_FIPS_DRBG_INSTANTIATE 133 #define FIPS_F_FIPS_DRBG_NEW 134 @@ -224,6 +225,8 @@ void ERR_load_FIPS_strings(void); #define FIPS_R_CANNOT_READ_EXE 103 #define FIPS_R_CANNOT_READ_EXE_DIGEST 104 #define FIPS_R_CONTRADICTING_EVIDENCE 114 +#define FIPS_R_ENTROPY_ERROR_UNDETECTED 133 +#define FIPS_R_ENTROPY_NOT_REQUESTED_FOR_RESEED 134 #define FIPS_R_ERROR_INITIALISING_DRBG 120 #define FIPS_R_ERROR_INSTANTIATING_DRBG 121 #define FIPS_R_ERROR_RETRIEVING_ENTROPY 122 @@ -234,7 +237,9 @@ void ERR_load_FIPS_strings(void); #define FIPS_R_FINGERPRINT_DOES_NOT_MATCH_SEGMENT_ALIASING 112 #define FIPS_R_FIPS_MODE_ALREADY_SET 102 #define FIPS_R_FIPS_SELFTEST_FAILED 106 +#define FIPS_R_FUNCTION_ERROR 135 #define FIPS_R_GENERATE_ERROR 124 +#define FIPS_R_GENERATE_ERROR_UNDETECTED 136 #define FIPS_R_INSTANTIATE_ERROR 125 #define FIPS_R_INSUFFICIENT_SECURITY_STRENGTH 132 #define FIPS_R_INVALID_KEY_LENGTH 109 @@ -243,13 +248,18 @@ void ERR_load_FIPS_strings(void); #define FIPS_R_NON_FIPS_METHOD 100 #define FIPS_R_NOT_INSTANTIATED 127 #define FIPS_R_PAIRWISE_TEST_FAILED 107 +#define FIPS_R_PERSONALISATION_ERROR_UNDETECTED 137 #define FIPS_R_PERSONALISATION_STRING_TOO_LONG 128 +#define FIPS_R_REQUEST_LENGTH_ERROR_UNDETECTED 138 #define FIPS_R_REQUEST_TOO_LARGE_FOR_DRBG 129 +#define FIPS_R_RESEED_COUNTER_ERROR 139 #define FIPS_R_RESEED_ERROR 130 #define FIPS_R_RSA_DECRYPT_ERROR 115 #define FIPS_R_RSA_ENCRYPT_ERROR 116 #define FIPS_R_SELFTEST_FAILED 101 +#define FIPS_R_STRENGTH_ERROR_UNDETECTED 140 #define FIPS_R_TEST_FAILURE 117 +#define FIPS_R_UNINSTANTIATE_ZEROISE_ERROR 141 #define FIPS_R_UNSUPPORTED_DRBG_TYPE 131 #define FIPS_R_UNSUPPORTED_PLATFORM 113 diff --git a/fips/rand/fips_drbg_ctr.c b/fips/rand/fips_drbg_ctr.c index 738abdd835..7e6d497ad1 100644 --- a/fips/rand/fips_drbg_ctr.c +++ b/fips/rand/fips_drbg_ctr.c @@ -352,7 +352,7 @@ static int drbg_ctr_generate(DRBG_CTX *dctx, static int drbg_ctr_uninstantiate(DRBG_CTX *dctx) { - OPENSSL_cleanse(&dctx->d.ctr, sizeof(DRBG_CTR_CTX)); + memset(&dctx->d.ctr, 0, sizeof(DRBG_CTR_CTX)); return 1; } @@ -385,7 +385,6 @@ int fips_drbg_ctr_init(DRBG_CTX *dctx) dctx->generate = drbg_ctr_generate; dctx->uninstantiate = drbg_ctr_uninstantiate; - cctx->keylen = keylen; dctx->strength = keylen * 8; dctx->blocklength = 16; @@ -423,7 +422,7 @@ int fips_drbg_ctr_init(DRBG_CTX *dctx) } dctx->max_request = 1<<19; - dctx->reseed_counter = DRBG_MAX_LENGTH; + dctx->reseed_interval = 1<<24; return 1; } diff --git a/fips/rand/fips_drbg_hash.c b/fips/rand/fips_drbg_hash.c index ca3bce7320..f6135c031f 100644 --- a/fips/rand/fips_drbg_hash.c +++ b/fips/rand/fips_drbg_hash.c @@ -377,6 +377,7 @@ int fips_drbg_hash_init(DRBG_CTX *dctx) dctx->max_adin = DRBG_MAX_LENGTH; dctx->max_request = 1<<19; + dctx->reseed_interval = 1<<24; return 1; } diff --git a/fips/rand/fips_drbg_lib.c b/fips/rand/fips_drbg_lib.c index 31c5a7a8b0..0e06273cef 100644 --- a/fips/rand/fips_drbg_lib.c +++ b/fips/rand/fips_drbg_lib.c @@ -118,7 +118,6 @@ void FIPS_drbg_free(DRBG_CTX *dctx) } int FIPS_drbg_instantiate(DRBG_CTX *dctx, - int strength, const unsigned char *pers, size_t perslen) { size_t entlen, noncelen; @@ -151,12 +150,6 @@ int FIPS_drbg_instantiate(DRBG_CTX *dctx, goto end; } - if (strength > dctx->strength) - { - r = FIPS_R_INSUFFICIENT_SECURITY_STRENGTH; - goto end; - } - dctx->status = DRBG_STATUS_ERROR; entlen = dctx->get_entropy(dctx, dctx->entropy, dctx->strength, @@ -197,8 +190,6 @@ int FIPS_drbg_instantiate(DRBG_CTX *dctx, dctx->status = DRBG_STATUS_READY; dctx->reseed_counter = 1; - /* Initial test value for reseed interval */ - dctx->reseed_interval = 1<<24; end: @@ -208,7 +199,7 @@ int FIPS_drbg_instantiate(DRBG_CTX *dctx, if (dctx->status == DRBG_STATUS_READY) return 1; - if (r && !(dctx->flags & DRBG_FLAG_TEST)) + if (r && !(dctx->flags & DRBG_FLAG_NOERR)) FIPSerr(FIPS_F_FIPS_DRBG_INSTANTIATE, r); return 0; @@ -265,7 +256,7 @@ int FIPS_drbg_reseed(DRBG_CTX *dctx, if (dctx->status == DRBG_STATUS_READY) return 1; - if (r && !(dctx->flags & DRBG_FLAG_TEST)) + if (r && !(dctx->flags & DRBG_FLAG_NOERR)) FIPSerr(FIPS_F_FIPS_DRBG_RESEED, r); return 0; @@ -313,7 +304,7 @@ int FIPS_drbg_generate(DRBG_CTX *dctx, unsigned char *out, size_t outlen, dctx->status = DRBG_STATUS_ERROR; goto end; } - if (dctx->reseed_counter > dctx->reseed_interval) + if (dctx->reseed_counter >= dctx->reseed_interval) dctx->status = DRBG_STATUS_RESEED; else dctx->reseed_counter++; @@ -321,7 +312,7 @@ int FIPS_drbg_generate(DRBG_CTX *dctx, unsigned char *out, size_t outlen, end: if (r) { - if (!(dctx->flags & DRBG_FLAG_TEST)) + if (!(dctx->flags & DRBG_FLAG_NOERR)) FIPSerr(FIPS_F_FIPS_DRBG_GENERATE, r); return 0; } @@ -331,11 +322,14 @@ int FIPS_drbg_generate(DRBG_CTX *dctx, unsigned char *out, size_t outlen, int FIPS_drbg_uninstantiate(DRBG_CTX *dctx) { - int save_type, save_flags, rv; - save_type = dctx->type; - save_flags = dctx->flags; + int rv; + if (!dctx->uninstantiate) + return 1; rv = dctx->uninstantiate(dctx); - OPENSSL_cleanse(dctx, sizeof(DRBG_CTX)); + /* Although we'd like to cleanse here we can't because we have to + * test the uninstantiate really zeroes the data. + */ + memset(dctx, 0, sizeof(DRBG_CTX)); /* If method has problems uninstantiating, return error */ return rv; } diff --git a/fips/rand/fips_drbg_selftest.c b/fips/rand/fips_drbg_selftest.c index e94a5d8e79..4f28d5ab15 100644 --- a/fips/rand/fips_drbg_selftest.c +++ b/fips/rand/fips_drbg_selftest.c @@ -726,8 +726,10 @@ typedef struct { const unsigned char *ent; size_t entlen; + int entcnt; const unsigned char *nonce; size_t noncelen; + int noncecnt; } TEST_ENT; static size_t test_entropy(DRBG_CTX *dctx, unsigned char *out, @@ -735,6 +737,7 @@ static size_t test_entropy(DRBG_CTX *dctx, unsigned char *out, { TEST_ENT *t = FIPS_drbg_get_app_data(dctx); memcpy(out, t->ent, t->entlen); + t->entcnt++; return t->entlen; } @@ -743,6 +746,7 @@ static size_t test_nonce(DRBG_CTX *dctx, unsigned char *out, { TEST_ENT *t = FIPS_drbg_get_app_data(dctx); memcpy(out, t->nonce, t->noncelen); + t->noncecnt++; return t->noncelen; } @@ -767,8 +771,10 @@ static int fips_drbg_single_kat(DRBG_CTX *dctx, DRBG_SELFTEST_DATA *td) t.entlen = td->entlen; t.nonce = td->nonce; t.noncelen = td->noncelen; + t.entcnt = 0; + t.noncecnt = 0; - if (!FIPS_drbg_instantiate(dctx, 0, td->pers, td->perslen)) + if (!FIPS_drbg_instantiate(dctx, td->pers, td->perslen)) goto err; t.ent = td->entpr; @@ -796,13 +802,197 @@ static int fips_drbg_single_kat(DRBG_CTX *dctx, DRBG_SELFTEST_DATA *td) return rv; } +/* This is the "health check" function required by SP800-90. Induce several + * failure modes and check an error condition is set. + */ + +static int fips_drbg_health_check(DRBG_CTX *dctx, DRBG_SELFTEST_DATA *td) + { + unsigned char randout[1024]; + TEST_ENT t; + size_t i; + unsigned char *p = (unsigned char *)dctx; + + /* Initialise DRBG */ + + if (!FIPS_drbg_init(dctx, td->nid, td->flags)) + goto err; + + if (!FIPS_drbg_set_test_mode(dctx, test_entropy, test_nonce)) + goto err; + + FIPS_drbg_set_app_data(dctx, &t); + + t.ent = td->ent; + t.entlen = td->entlen; + t.nonce = td->nonce; + t.noncelen = td->noncelen; + t.entcnt = 0; + t.noncecnt = 0; + + /* Don't report induced errors */ + dctx->flags |= DRBG_FLAG_NOERR; + + /* Try too large a personalisation length */ + if (FIPS_drbg_instantiate(dctx, td->pers, dctx->max_pers + 1) > 0) + { + FIPSerr(FIPS_F_FIPS_DRBG_HEALTH_CHECK, FIPS_R_PERSONALISATION_ERROR_UNDETECTED); + goto err; + } + + /* Test entropy source failure detection */ + + t.entlen = 0; + if (FIPS_drbg_instantiate(dctx, td->pers, td->perslen) > 0) + { + FIPSerr(FIPS_F_FIPS_DRBG_HEALTH_CHECK, FIPS_R_ENTROPY_ERROR_UNDETECTED); + goto err; + } + + /* Try to generate output from uninstantiated DRBG */ + if (FIPS_drbg_generate(dctx, randout, td->katlen, 0, 0, + td->adin, td->adinlen)) + { + FIPSerr(FIPS_F_FIPS_DRBG_HEALTH_CHECK, FIPS_R_GENERATE_ERROR_UNDETECTED); + goto err; + } + + /* Instantiate with valid data. NB: errors now reported again */ + if (!FIPS_drbg_init(dctx, td->nid, td->flags)) + goto err; + if (!FIPS_drbg_set_test_mode(dctx, test_entropy, test_nonce)) + goto err; + FIPS_drbg_set_app_data(dctx, &t); + + t.entlen = td->entlen; + if (!FIPS_drbg_instantiate(dctx, td->pers, td->perslen)) + goto err; + + /* Check generation is now OK */ + if (!FIPS_drbg_generate(dctx, randout, td->katlen, 0, 0, + td->adin, td->adinlen)) + goto err; + + /* Try to generate with too high a strength. + */ + + dctx->flags |= DRBG_FLAG_NOERR; + if (dctx->strength != 256) + { + if (FIPS_drbg_generate(dctx, randout, td->katlen, 256, 0, + td->adin, td->adinlen)) + { + FIPSerr(FIPS_F_FIPS_DRBG_HEALTH_CHECK, FIPS_R_STRENGTH_ERROR_UNDETECTED); + + goto err; + } + } + + /* Request too much data for one request */ + if (FIPS_drbg_generate(dctx, randout, dctx->max_request + 1, 0, 0, + td->adin, td->adinlen)) + { + FIPSerr(FIPS_F_FIPS_DRBG_HEALTH_CHECK, FIPS_R_REQUEST_LENGTH_ERROR_UNDETECTED); + goto err; + } + + /* Check prediction resistance request fails if entropy source + * failure. + */ + + t.entlen = 0; + + if (FIPS_drbg_generate(dctx, randout, td->katlen, 0, 1, + td->adin, td->adinlen)) + { + FIPSerr(FIPS_F_FIPS_DRBG_HEALTH_CHECK, FIPS_R_ENTROPY_ERROR_UNDETECTED); + goto err; + } + + + /* Instantiate again with valid data */ + + if (!FIPS_drbg_init(dctx, td->nid, td->flags)) + goto err; + if (!FIPS_drbg_set_test_mode(dctx, test_entropy, test_nonce)) + goto err; + FIPS_drbg_set_app_data(dctx, &t); + + t.entlen = td->entlen; + /* Test reseeding works */ + dctx->reseed_interval = 2; + if (!FIPS_drbg_instantiate(dctx, td->pers, td->perslen)) + goto err; + + /* Check generation is now OK */ + if (!FIPS_drbg_generate(dctx, randout, td->katlen, 0, 0, + td->adin, td->adinlen)) + goto err; + if (!FIPS_drbg_generate(dctx, randout, td->katlen, 0, 0, + td->adin, td->adinlen)) + goto err; + + /* DRBG should now require a reseed */ + if (dctx->status != DRBG_STATUS_RESEED) + { + FIPSerr(FIPS_F_FIPS_DRBG_HEALTH_CHECK, FIPS_R_RESEED_COUNTER_ERROR); + goto err; + } + + + /* Generate again and check entropy has been requested for reseed */ + t.entcnt = 0; + if (!FIPS_drbg_generate(dctx, randout, td->katlen, 0, 0, + td->adin, td->adinlen)) + goto err; + if (t.entcnt != 1) + { + FIPSerr(FIPS_F_FIPS_DRBG_HEALTH_CHECK, FIPS_R_ENTROPY_NOT_REQUESTED_FOR_RESEED); + goto err; + } + + FIPS_drbg_uninstantiate(dctx); + p = (unsigned char *)dctx; + /* Standard says we have to check uninstantiate really zeroes + * the data... + */ + for (i = 0; i < sizeof(DRBG_CTX); i++) + { + if (*p != 0) + { + FIPSerr(FIPS_F_FIPS_DRBG_HEALTH_CHECK, FIPS_R_UNINSTANTIATE_ZEROISE_ERROR); + goto err; + } + p++; + } + + return 1; + + err: + /* A real error as opposed to an induced one: underlying function will + * indicate the error. + */ + if (!(dctx->flags & DRBG_FLAG_NOERR)) + FIPSerr(FIPS_F_FIPS_DRBG_HEALTH_CHECK, FIPS_R_FUNCTION_ERROR); + FIPS_drbg_uninstantiate(dctx); + return 0; + + } + + int fips_drbg_kat(DRBG_CTX *dctx, int nid, unsigned int flags) { + int rv; DRBG_SELFTEST_DATA *td; for (td = drbg_test; td->nid != 0; td++) { if (td->nid == nid && td->flags == flags) - return fips_drbg_single_kat(dctx, td); + { + rv = fips_drbg_single_kat(dctx, td); + if (rv <= 0) + return rv; + return fips_drbg_health_check(dctx, td); + } } return 0; } @@ -815,8 +1005,12 @@ int FIPS_selftest_drbg(void) if (!dctx) return 0; for (td = drbg_test; td->nid != 0; td++) + { if (!fips_drbg_single_kat(dctx, td)) break; + if (!fips_drbg_health_check(dctx, td)) + break; + } if (td->nid == 0) return 1; return 0; diff --git a/fips/rand/fips_drbgvs.c b/fips/rand/fips_drbgvs.c index c60b80bf2f..0c5839e553 100644 --- a/fips/rand/fips_drbgvs.c +++ b/fips/rand/fips_drbgvs.c @@ -156,9 +156,9 @@ static size_t test_nonce(DRBG_CTX *dctx, unsigned char *out, int main(int argc,char **argv) { FILE *in, *out; - DRBG_CTX *dctx; + DRBG_CTX *dctx = NULL; TEST_ENT t; - int r, nid; + int r, nid = 0; int pr = 0; char buf[2048], lbuf[2048]; unsigned char randout[2048]; @@ -166,7 +166,7 @@ int main(int argc,char **argv) unsigned char *ent = NULL, *nonce = NULL, *pers = NULL, *adin = NULL; long entlen, noncelen, perslen, adinlen; - int df; + int df = 0; int randoutlen = 0; @@ -251,7 +251,7 @@ int main(int argc,char **argv) FIPS_drbg_set_test_mode(dctx, test_entropy, test_nonce); FIPS_drbg_set_app_data(dctx, &t); randoutlen = (int)FIPS_drbg_get_blocklength(dctx); - r = FIPS_drbg_instantiate(dctx, 0, pers, perslen); + r = FIPS_drbg_instantiate(dctx, pers, perslen); if (!r) { fprintf(stderr, "Error instantiating DRBG\n"); diff --git a/fips/rand/fips_rand.h b/fips/rand/fips_rand.h index 829a0e12a4..c4d1d910ba 100644 --- a/fips/rand/fips_rand.h +++ b/fips/rand/fips_rand.h @@ -77,7 +77,7 @@ typedef struct drbg_ctx_st DRBG_CTX; DRBG_CTX *FIPS_drbg_new(int type, unsigned int flags); int FIPS_drbg_init(DRBG_CTX *dctx, int type, unsigned int flags); -int FIPS_drbg_instantiate(DRBG_CTX *dctx, int strength, +int FIPS_drbg_instantiate(DRBG_CTX *dctx, const unsigned char *pers, size_t perslen); int FIPS_drbg_reseed(DRBG_CTX *dctx, const unsigned char *adin, size_t adinlen); int FIPS_drbg_generate(DRBG_CTX *dctx, unsigned char *out, size_t outlen, diff --git a/fips/rand/fips_rand_lcl.h b/fips/rand/fips_rand_lcl.h index 2f0dfac95c..7e64bb491f 100644 --- a/fips/rand/fips_rand_lcl.h +++ b/fips/rand/fips_rand_lcl.h @@ -86,6 +86,8 @@ struct drbg_ctr_ctx_st /* PRNG is in test state */ #define DRBG_FLAG_TEST 0x2 +/* Functions shouldn't call err library */ +#define DRBG_FLAG_NOERR 0x4 /* DRBG status values */ /* not initialised */ @@ -103,7 +105,7 @@ struct drbg_ctr_ctx_st /* A default maximum length: larger than any reasonable value used in pratice */ -#define DRBG_MAX_LENGTH 0x7fffffff +#define DRBG_MAX_LENGTH 0x7ffffff0 /* DRBG context structure */