diff options
Diffstat (limited to 'testsuite/cfb-test.c')
| -rw-r--r-- | testsuite/cfb-test.c | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/testsuite/cfb-test.c b/testsuite/cfb-test.c index b59bee22..b8323383 100644 --- a/testsuite/cfb-test.c +++ b/testsuite/cfb-test.c @@ -6,6 +6,7 @@ /* Test with more data and inplace decryption, to check that the * cfb_decrypt buffering works. */ #define CFB_BULK_DATA 10000 +#define CFB8_BULK_DATA CFB_BULK_DATA static void test_cfb_bulk(void) @@ -64,12 +65,113 @@ test_cfb_bulk(void) ASSERT (MEMEQ(CFB_BULK_DATA, clear, cipher)); } +static void +test_cfb8_bulk(void) +{ + struct knuth_lfib_ctx random; + + uint8_t clear[CFB8_BULK_DATA]; + + uint8_t cipher[CFB8_BULK_DATA + 1]; + + const uint8_t *key = H("966c7bf00bebe6dc 8abd37912384958a" + "743008105a08657d dcaad4128eee38b3"); + + const uint8_t *start_iv = H("11adbff119749103 207619cfa0e8d13a"); + const uint8_t *end_iv = H("f84bfd48206f5803 6ef86f4e69e9aec0"); + + struct CFB8_CTX(struct aes_ctx, AES_BLOCK_SIZE) aes; + + knuth_lfib_init(&random, CFB8_BULK_DATA); + knuth_lfib_random(&random, CFB8_BULK_DATA, clear); + + /* Byte that should not be overwritten */ + cipher[CFB8_BULK_DATA] = 17; + + aes_set_encrypt_key(&aes.ctx, 32, key); + CFB8_SET_IV(&aes, start_iv); + + CFB8_ENCRYPT(&aes, aes_encrypt, CFB8_BULK_DATA, cipher, clear); + + ASSERT(cipher[CFB8_BULK_DATA] == 17); + + if (verbose) + { + printf("IV after bulk encryption: "); + print_hex(AES_BLOCK_SIZE, aes.iv); + printf("\n"); + } + + ASSERT(MEMEQ(AES_BLOCK_SIZE, aes.iv, end_iv)); + + /* Decrypt, in place */ + aes_set_encrypt_key(&aes.ctx, 32, key); + CFB8_SET_IV(&aes, start_iv); + CFB8_DECRYPT(&aes, aes_encrypt, CFB8_BULK_DATA, cipher, cipher); + + ASSERT(cipher[CFB8_BULK_DATA] == 17); + + if (verbose) + { + printf("IV after bulk decryption: "); + print_hex(AES_BLOCK_SIZE, aes.iv); + printf("\n"); + } + + ASSERT (MEMEQ(AES_BLOCK_SIZE, aes.iv, end_iv)); + ASSERT (MEMEQ(CFB8_BULK_DATA, clear, cipher)); +} + void test_main(void) { /* From NIST spec 800-38a on AES modes. * * F.3 CFB Example Vectors + * F.3.7 CFB8-AES128.Encrypt + */ + + test_cipher_cfb8(&nettle_aes128, + SHEX("2b7e151628aed2a6abf7158809cf4f3c"), + SHEX("6bc1bee22e409f96e93d7e117393172a" + "ae2d"), + SHEX("3b79424c9c0dd436bace9e0ed4586a4f" + "32b9"), + SHEX("000102030405060708090a0b0c0d0e0f")); + + /* From NIST spec 800-38a on AES modes. + * + * F.3 CFB Example Vectors + * F.3.9 CFB8-AES192.Encrypt + */ + + test_cipher_cfb8(&nettle_aes192, + SHEX("8e73b0f7da0e6452c810f32b809079e5" + "62f8ead2522c6b7b"), + SHEX("6bc1bee22e409f96e93d7e117393172a" + "ae2d"), + SHEX("cda2521ef0a905ca44cd057cbf0d47a0" + "678a"), + SHEX("000102030405060708090a0b0c0d0e0f")); + + /* From NIST spec 800-38a on AES modes. + * + * F.3 CFB Example Vectors + * F.3.11 CFB8-AES256.Encrypt + */ + + test_cipher_cfb8(&nettle_aes256, + SHEX("603deb1015ca71be2b73aef0857d7781" + "1f352c073b6108d72d9810a30914dff4"), + SHEX("6bc1bee22e409f96e93d7e117393172a" + "ae2d"), + SHEX("dc1f1a8520a64db55fcc8ac554844e88" + "9700"), + SHEX("000102030405060708090a0b0c0d0e0f")); + + /* From NIST spec 800-38a on AES modes. + * + * F.3 CFB Example Vectors * F.3.13 CFB128-AES128.Encrypt */ @@ -139,6 +241,7 @@ test_main(void) SHEX("000102030405060708090a0b0c0d0e0f")); test_cfb_bulk(); + test_cfb8_bulk(); } /* |