diff options
Diffstat (limited to 'testsuite/rsa-pss-sign-tr-test.c')
| -rw-r--r-- | testsuite/rsa-pss-sign-tr-test.c | 356 |
1 files changed, 356 insertions, 0 deletions
diff --git a/testsuite/rsa-pss-sign-tr-test.c b/testsuite/rsa-pss-sign-tr-test.c new file mode 100644 index 00000000..6dfba734 --- /dev/null +++ b/testsuite/rsa-pss-sign-tr-test.c @@ -0,0 +1,356 @@ +#include "testutils.h" +#include "knuth-lfib.h" +#include "nettle-internal.h" + +#define SALT "This is a magic salt" +#define MSG1 "None so blind as those who will not see" +#define MSG2 "Fortune knocks once at every man's door" + +typedef int (*test_pss_sign_tr_func) (const struct rsa_public_key *pub, + const struct rsa_private_key *key, + void *random_ctx, nettle_random_func *random, + size_t salt_length, const uint8_t *salt, + const uint8_t *digest, + mpz_t s); + +typedef int (*test_pss_verify_func) (const struct rsa_public_key *key, + size_t salt_length, + const uint8_t *digest, + const mpz_t signature); + +static void +test_rsa_pss_sign_tr(struct rsa_public_key *pub, + struct rsa_private_key *key, + test_pss_sign_tr_func sign_tr_func, + test_pss_verify_func verify_func, + void *ctx, const struct nettle_hash *hash, + size_t salt_length, const uint8_t *salt, + size_t length, const uint8_t *message, + mpz_t expected) +{ + mpz_t signature; + struct knuth_lfib_ctx lfib; + uint8_t digest[NETTLE_MAX_HASH_DIGEST_SIZE]; + uint8_t bad_digest[NETTLE_MAX_HASH_DIGEST_SIZE]; + + knuth_lfib_init(&lfib, 1111); + + hash->init(ctx); + hash->update(ctx, length, message); + hash->digest(ctx, hash->digest_size, digest); + + mpz_init(signature); + + mpz_set_ui (signature, 17); + /* Try bad private key */ + mpz_add_ui(key->p, key->p, 2); + + ASSERT(!sign_tr_func(pub, key, + &lfib, (nettle_random_func *) knuth_lfib_random, + salt_length, salt, + digest, signature)); + + mpz_sub_ui(key->p, key->p, 2); + + ASSERT(!mpz_cmp_ui(signature, 17)); + + /* Try the good private key */ + ASSERT(sign_tr_func(pub, key, + &lfib, (nettle_random_func *) knuth_lfib_random, + salt_length, salt, + digest, signature)); + + if (verbose) + { + fprintf(stderr, "rsa-pss-tr signature: "); + mpz_out_str(stderr, 16, signature); + fprintf(stderr, "\nrsa-pss-tr expected: "); + mpz_out_str(stderr, 16, expected); + fprintf(stderr, "\n"); + } + + ASSERT (mpz_cmp(signature, expected) == 0); + + /* Try bad digest */ + memset(bad_digest, 0x17, sizeof(bad_digest)); + ASSERT (!verify_func(pub, salt_length, bad_digest, signature)); + + /* Try the good digest */ + ASSERT (verify_func(pub, salt_length, digest, signature)); + + /* Try bad signature */ + mpz_combit(signature, 17); + ASSERT (!verify_func(pub, salt_length, digest, signature)); + + mpz_clear(signature); +} + + +void +test_main(void) +{ + struct rsa_public_key pub; + struct rsa_private_key key; + struct sha256_ctx sha256ctx; + struct sha384_ctx sha384ctx; + struct sha512_ctx sha512ctx; + mpz_t p1; + mpz_t q1; + struct tstring *salt; + struct tstring *msg; + + mpz_t expected; + + mpz_init(expected); + + mpz_init(p1); + mpz_init(q1); + + rsa_private_key_init(&key); + rsa_public_key_init(&pub); + + test_rsa_set_key_1(&pub, &key); + + /* Test signatures */ + mpz_set_str(expected, + "25e6ce0cc00e917e177a09cb4dfd843d104c179b71aded60e68ebc" + "ca2cabb1e51502adf28e53fa7ede42619f21a1162755b9658edf88" + "a038bb4fea2bb73306fb384d5785c1a8c98a255277c91a4f88ddd3" + "52ebdc78f71f7e62b7a870dac4ab25f1004453457e831a1572f7c9" + "23fcc48e3b69db582127d14471c7195dce", 16); + + test_rsa_pss_sign_tr(&pub, &key, + rsa_pss_sha256_sign_digest_tr, + rsa_pss_sha256_verify_digest, + &sha256ctx, &nettle_sha256, + LDATA(SALT), LDATA(MSG1), expected); + + mpz_set_str(expected, + "52f4393ccc92b5672dd3cfd8624765d3a4cdb50c7a92060c33b4663" + "fa545b32ce56ec8cd44fe9720df301906ae40921e844b6d80331194" + "972f98e309c937c887c53da940778f29d52dd9489e6016a07e9aa16" + "b1ea8fefc0860ad69068ad6f94a4b0c8fc8a0797b08c58cf4a8df90" + "ee1375feedf7bf73f16ebb2d1cc7e4", 16); + + test_rsa_pss_sign_tr(&pub, &key, + rsa_pss_sha256_sign_digest_tr, + rsa_pss_sha256_verify_digest, + &sha256ctx, &nettle_sha256, + LDATA(SALT), LDATA(MSG2), expected); + + /* 777-bit key, generated by + * + * lsh-keygen -a rsa -l 777 -f advanced-hex + * + * Interesting because the size of n doesn't equal the sum of the + * sizes of p and q. + * + * (private-key (rsa-pkcs1 + * (n #013b04440e3eef25 d51c738d508a7fa8 b3445180c342af0f + * 4cb5a789047300e2 cfc5c5450974cfc2 448aeaaa7f43c374 + * c9a3b038b181f2d1 0f1a2327fd2c087b a49bf1086969fd2c + * d1df3fd69f81fa4b 162cc8bbb363fc95 b7b24b9c53d0c67e + * f52b#) + * (e #3f1a012d#) + * (d #f9bae89dacca6cca c21e0412b4df8355 6fe7c5322bbae8ad + * 3f11494fd12bc076 d4a7da3050fe109d 2074db09cc6a93b4 + * 745479522558379e a0ddfa74f86c9e9e a22c3b0e93d51447 + * 0feb38105dd35395 63b91ee32776f40c 67b2a175690f7abb + * 25#) + * (p #0b73c990eeda0a2a 2c26416052c85560 0c5c0f5ce86a8326 + * 166acea91786237a 7ff884e66dbfdd3a ab9d9801414c1506 + * 8b#) + * (q #1b81c19a62802a41 9c99283331b0badb 08eb0c25ffce0fbf + * 50017850036f32f3 2132a845b91a5236 61f7b451d587383f + * e1#) + * (a #0a912fc93a6cca6b 3521725a3065b3be 3c9745e29c93303d + * 7d29316c6cafa4a2 89945f964fcdea59 1f9d248b0b6734be + * c9#) + * (b #1658eca933251813 1eb19c77aba13d73 e0b8f4ce986d7615 + * 764c6b0b03c18146 46b7f332c43e05c5 351e09006979ca5b + * 05#) + * (c #0114720dace7b27f 2bf2850c1804869f 79a0aad0ec02e6b4 + * 05e1831619db2f10 bb9b6a8fd5c95df2 eb78f303ea0c0cc8 + * 06#))) + */ + + mpz_set_str(pub.n, + "013b04440e3eef25" "d51c738d508a7fa8" "b3445180c342af0f" + "4cb5a789047300e2" "cfc5c5450974cfc2" "448aeaaa7f43c374" + "c9a3b038b181f2d1" "0f1a2327fd2c087b" "a49bf1086969fd2c" + "d1df3fd69f81fa4b" "162cc8bbb363fc95" "b7b24b9c53d0c67e" + "f52b", 16); + + mpz_set_str(pub.e, "3f1a012d", 16); + + ASSERT (rsa_public_key_prepare(&pub)); + + mpz_set_str(key.p, + "0b73c990eeda0a2a" "2c26416052c85560" "0c5c0f5ce86a8326" + "166acea91786237a" "7ff884e66dbfdd3a" "ab9d9801414c1506" + "8b", 16); + + mpz_set_str(key.q, + "1b81c19a62802a41" "9c99283331b0badb" "08eb0c25ffce0fbf" + "50017850036f32f3" "2132a845b91a5236" "61f7b451d587383f" + "e1", 16); + + mpz_set_str(key.a, + "0a912fc93a6cca6b" "3521725a3065b3be" "3c9745e29c93303d" + "7d29316c6cafa4a2" "89945f964fcdea59" "1f9d248b0b6734be" + "c9", 16); + + mpz_set_str(key.b, + "1658eca933251813" "1eb19c77aba13d73" "e0b8f4ce986d7615" + "764c6b0b03c18146" "46b7f332c43e05c5" "351e09006979ca5b" + "05", 16); + + mpz_set_str(key.c, + "0114720dace7b27f" "2bf2850c1804869f" "79a0aad0ec02e6b4" + "05e1831619db2f10" "bb9b6a8fd5c95df2" "eb78f303ea0c0cc8" + "06", 16); + + ASSERT (rsa_private_key_prepare(&key)); + ASSERT (pub.size == key.size); + + /* Test signatures */ + mpz_set_str(expected, + "1a4d28331341cabf7ac85bc59a58d439b7ec2c607c6a74e35b5909" + "1dfa3d9de9fde93e4a431f0f768bec07c39995d253209f86e3dc84" + "037ecd5d23d963fab4fa8a001e018d82cb19d743a94ba7dc7a821e" + "87b72e67a0fe058f956208f7060dc104", 16); + + test_rsa_pss_sign_tr(&pub, &key, + rsa_pss_sha256_sign_digest_tr, + rsa_pss_sha256_verify_digest, + &sha256ctx, &nettle_sha256, + LDATA(SALT), LDATA(MSG1), expected); + + /* From FIPS 186-2 */ + mpz_set_str(pub.n, + "be499b5e7f06c83f" "a0293e31465c8eb6" "b58af920bae52a7b" + "5b9bfeb7aa72db12" "64112eb3fd431d31" "a2a7e50941566929" + "494a0e891ed56139" "18b4b51b0d1fb977" "83b26acf7d0f384c" + "fb35f4d2824f5dd3" "80623a26bf180b63" "961c619dcdb20cae" + "406f22f6e276c80a" "37259490cfeb72c1" "a71a84f1846d3308" + "77ba3e3101ec9c7b" , 16); + + mpz_set_str(pub.e, "11", 16); + + ASSERT (rsa_public_key_prepare(&pub)); + + mpz_set_str(key.p, + "e7a80c5d211c06ac" "b900939495f26d36" "5fc2b4825b75e356" + "f89003eaa5931e6b" "e5c3f7e6a633ad59" "db6289d06c354c23" + "5e739a1e3f3d39fb" "40d1ffb9cb44288f", 16); + + mpz_set_str(key.q, + "d248aa248000f720" "258742da67b71194" "0c8f76e1ecd52b67" + "a6ffe1e49354d66f" "f84fa601804743f5" "838da2ed4693a5a2" + "8658d6528cc1803b" "f6c8dc73c5230b55", 16); + + mpz_set_str(key.d, + "0d0f17362bdad181" "db4e1fe03e8de1a3" "208989914e14bf26" + "9558826bfa20faf4" "b68dba6bb989a01f" "03a21c44665dc5f6" + "48cb5b59b954eb10" "77a80263bd22cdfb" "88d39164b7404f4f" + "1106ee01cf60b776" "95748d8fdaf9fd42" "8963fe75144010b1" + "934c8e26a8823967" "2cf49b3422a07c4d" "834ba208d570fe40" + "8e7095c90547e68d", 16); + + /* a = d % (p-1) */ + mpz_sub_ui(p1, key.p, 1); + mpz_fdiv_r(key.a, key.d, p1); + mpz_clear(p1); + + /* b = d % (q-1) */ + mpz_sub_ui(q1, key.q, 1); + mpz_fdiv_r(key.b, key.d, q1); + mpz_clear(q1); + + /* c = q^{-1} (mod p) */ + mpz_invert(key.c, key.q, key.p); + + ASSERT (rsa_private_key_prepare(&key)); + ASSERT (pub.size == key.size); + + mpz_set_str(expected, + "11e169f2fd40b07641b9768a2ab19965fb6c27f10fcf0323fcc6d1" + "2eb4f1c06b330ddaa1ea504407afa29de9ebe0374fe9d1e7d0ffbd" + "5fc1cf3a3446e4145415d2ab24f789b3464c5c43a256bbc1d692cf" + "7f04801dac5bb401a4a03ab7d5728a860c19e1a4dc797ca542c820" + "3cec2e601eb0c51f567f2eda022b0b9ebddeeefa", 16); + + salt = SHEX("11223344555432167890"); + msg = SHEX("c7f5270fca725f9bd19f519a8d7cca3cc5c079024029f3bae510f9" + "b02140fe238908e4f6c18f07a89c687c8684669b1f1db2baf9251a" + "3c829faccb493084e16ec9e28d58868074a5d6221667dd6e528d16" + "fe2c9f3db4cfaf6c4dce8c8439af38ceaaaa9ce2ecae7bc8f4a5a5" + "5e3bf96df9cd575c4f9cb327951b8cdfe4087168"); + + test_rsa_pss_sign_tr(&pub, &key, + rsa_pss_sha256_sign_digest_tr, + rsa_pss_sha256_verify_digest, + &sha256ctx, &nettle_sha256, + salt->length, salt->data, msg->length, msg->data, + expected); + + mpz_set_str(expected, + "b281ad934b2775c0cba5fb10aa574d2ed85c7f99b942b78e497024" + "80069362ed394baded55e56cfcbe7b0b8d2217a05a60e1acd725cb" + "09060dfac585bc2132b99b41cdbd530c69d17cdbc84bc6b9830fc7" + "dc8e1b2412cfe06dcf8c1a0cc3453f93f25ebf10cb0c90334fac57" + "3f449138616e1a194c67f44efac34cc07a526267", 16); + + test_rsa_pss_sign_tr(&pub, &key, + rsa_pss_sha384_sign_digest_tr, + rsa_pss_sha384_verify_digest, + &sha384ctx, &nettle_sha384, + salt->length, salt->data, msg->length, msg->data, + expected); + mpz_set_str(expected, + "8ffc38f9b820ef6b080fd2ec7de5626c658d79056f3edf610a295b" + "7b0546f73e01ffdf4d0070ebf79c33fd86c2d608be9438b3d420d0" + "9535b97cd3d846ecaf8f6551cdf93197e9f8fb048044473ab41a80" + "1e9f7fc983c62b324361dade9f71a65952bd35c59faaa4d6ff462f" + "68a6c4ec0b428aa47336f2178aeb276136563b7d", 16); + + test_rsa_pss_sign_tr(&pub, &key, + rsa_pss_sha512_sign_digest_tr, + rsa_pss_sha512_verify_digest, + &sha512ctx, &nettle_sha512, + salt->length, salt->data, msg->length, msg->data, + expected); + + /* The public key n for this test is of size k = 1017 bits, and the + pss "em" value is limited to k - 1 = 1016 bits or 127 octets. The + alleged signature below results in a 1017 bit number during the + signature verification, which is too large, and used to result in + an assertion failure when attempting to convert the number to a + 127 octet string. + */ + mpz_set_str(pub.n, + "1d64559685aad3490e976b48aacf442ecee847268f882341eafe78" + "a0ca4ef88f66edbaf55b70e5285cc117aa9ceb322a4227c17e9e89" + "27bf38e5672faecf79e2983d92766fbb6624522f072ae0e4e46d37" + "052ce1e5745c2dd8fd67de3862e4711161e359b96bda85911ebf4e" + "6ce1bea625970269c77004a3cb03f9c382c5f79", 16); + mpz_set_str(pub.e, "10001", 16); + + ASSERT (rsa_public_key_prepare(&pub)); + + msg = SHEX("7f85e4909ff7bb29536e540a53031ef03ddcb129e553a43273fa1f" + "ed28c22a8b57c7bde101ff746f335ba69b29642019"); + /* Alleged signature, resulting in a too large m. */ + mpz_set_str(expected, + "000000000000000000000000000000000000000000000000000000" + "000000000000000000000000000000000000000000000005ffff05" + "000000000000000000000000000000000000000000000000000000" + "000000000000000000000000000000000000000000000000000000" + "0000000000000000000000000000000000000000", 16); + + ASSERT(!rsa_pss_sha384_verify_digest(&pub, 48, msg->data, expected)); + + rsa_private_key_clear(&key); + rsa_public_key_clear(&pub); + mpz_clear(expected); +} |