#include "testutils.h" #include "aes.h" #include "cbc.h" #include "knuth-lfib.h" /* Test with more data and inplace decryption, to check that the * cbc_decrypt buffering works. */ #define CBC_BULK_DATA 0x2710 /* 10000 */ static void test_cbc_bulk(void) { struct knuth_lfib_ctx random; uint8_t clear[CBC_BULK_DATA]; uint8_t cipher[CBC_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("c7a42a569b421224 d0c23e52f46f97f5"); struct CBC_CTX(struct aes256_ctx, AES_BLOCK_SIZE) aes; knuth_lfib_init(&random, CBC_BULK_DATA); knuth_lfib_random(&random, CBC_BULK_DATA, clear); /* Byte that should not be overwritten */ cipher[CBC_BULK_DATA] = 17; aes256_set_encrypt_key(&aes.ctx, key); CBC_SET_IV(&aes, start_iv); CBC_ENCRYPT(&aes, aes256_encrypt, CBC_BULK_DATA, cipher, clear); ASSERT(cipher[CBC_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 */ aes256_set_decrypt_key(&aes.ctx, key); CBC_SET_IV(&aes, start_iv); CBC_DECRYPT(&aes, aes256_decrypt, CBC_BULK_DATA, cipher, cipher); ASSERT(cipher[CBC_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(CBC_BULK_DATA, clear, cipher)); } void test_main(void) { /* Intermediate values: * iv XOR first message block: * "a5 ce 55 d4 21 15 a1 c6 4a a4 0c b2 ca a6 d1 37" * First ciphertext block, c1: * "1f 94 fc 85 f2 36 21 06 4a ea e3 c9 cc 38 01 0e" * c1 XOR second message block: * "3f e0 94 ec 81 16 4e 68 26 93 c3 a6 a2 5b 64 2f" * Second ciphertext block, c1: * "7b f6 5f c5 02 59 2e 71 af bf 34 87 c0 36 2a 16" */ test_cipher_cbc(&nettle_aes256, SHEX("8d ae 93 ff fc 78 c9 44" "2a bd 0c 1e 68 bc a6 c7" "05 c7 84 e3 5a a9 11 8b" "d3 16 aa 54 9b 44 08 9e"), SDATA("Listen, I'll say this only once!"), SHEX("1f 94 fc 85 f2 36 21 06" "4a ea e3 c9 cc 38 01 0e" "7b f6 5f c5 02 59 2e 71" "af bf 34 87 c0 36 2a 16"), SHEX("e9 a7 26 a0 44 7b 8d e6 03 83 60 de ea d5 b0 4e")); /* From NIST spec 800-38a on AES modes. * * F.2 CBC Example Vectors * F.2.1 CBC-AES128.Encrypt */ /* Intermediate values, blocks input to AES: * * 6bc0bce12a459991e134741a7f9e1925 * d86421fb9f1a1eda505ee1375746972c * 604ed7ddf32efdff7020d0238b7c2a5d * 8521f2fd3c8eef2cdc3da7e5c44ea206 */ test_cipher_cbc(&nettle_aes128, SHEX("2b7e151628aed2a6abf7158809cf4f3c"), SHEX("6bc1bee22e409f96e93d7e117393172a" "ae2d8a571e03ac9c9eb76fac45af8e51" "30c81c46a35ce411e5fbc1191a0a52ef" "f69f2445df4f9b17ad2b417be66c3710"), SHEX("7649abac8119b246cee98e9b12e9197d" "5086cb9b507219ee95db113a917678b2" "73bed6b8e3c1743b7116e69e22229516" "3ff1caa1681fac09120eca307586e1a7"), SHEX("000102030405060708090a0b0c0d0e0f")); /* F.2.3 CBC-AES192.Encrypt */ /* Intermediate values, blcoks input to AES: * * 6bc0bce12a459991e134741a7f9e1925 * e12f97e55dbfcfa1efcf7796da0fffb9 * 8411b1ef0e2109e5001cf96f256346b5 * a1840065cdb4e1f7d282fbd7db9d35f0 */ test_cipher_cbc(&nettle_aes192, SHEX("8e73b0f7da0e6452c810f32b809079e5" "62f8ead2522c6b7b"), SHEX("6bc1bee22e409f96e93d7e117393172a" "ae2d8a571e03ac9c9eb76fac45af8e51" "30c81c46a35ce411e5fbc1191a0a52ef" "f69f2445df4f9b17ad2b417be66c3710"), SHEX("4f021db243bc633d7178183a9fa071e8" "b4d9ada9ad7dedf4e5e738763f69145a" "571b242012fb7ae07fa9baac3df102e0" "08b0e27988598881d920a9e64f5615cd"), SHEX("000102030405060708090a0b0c0d0e0f")); /* F.2.5 CBC-AES256.Encrypt */ /* Intermediate values, blcoks input to AES: * * 6bc0bce12a459991e134741a7f9e1925 * 5ba1c653c8e65d26e929c4571ad47587 * ac3452d0dd87649c8264b662dc7a7e92 * cf6d172c769621d8081ba318e24f2371 */ test_cipher_cbc(&nettle_aes256, SHEX("603deb1015ca71be2b73aef0857d7781" "1f352c073b6108d72d9810a30914dff4"), SHEX("6bc1bee22e409f96e93d7e117393172a" "ae2d8a571e03ac9c9eb76fac45af8e51" "30c81c46a35ce411e5fbc1191a0a52ef" "f69f2445df4f9b17ad2b417be66c3710"), SHEX("f58c4c04d6e5f1ba779eabfb5f7bfbd6" "9cfc4e967edb808d679f777bc6702c7d" "39f23369a9d9bacfa530e26304231461" "b2eb05e2c39be9fcda6c19078c6a9d1b"), SHEX("000102030405060708090a0b0c0d0e0f")); test_cbc_bulk(); } /* IV 000102030405060708090a0b0c0d0e0f Block #1 Plaintext 6bc1bee22e409f96e93d7e117393172a Input Block 6bc0bce12a459991e134741a7f9e1925 Output Block 7649abac8119b246cee98e9b12e9197d Ciphertext 7649abac8119b246cee98e9b12e9197d Block #2 Plaintext ae2d8a571e03ac9c9eb76fac45af8e51 Input Block d86421fb9f1a1eda505ee1375746972c Output Block 5086cb9b507219ee95db113a917678b2 Ciphertext 5086cb9b507219ee95db113a917678b2 Block #3 Plaintext 30c81c46a35ce411e5fbc1191a0a52ef Input Block 604ed7ddf32efdff7020d0238b7c2a5d Output Block 73bed6b8e3c1743b7116e69e22229516 Ciphertext 73bed6b8e3c1743b7116e69e22229516 Block #4 Plaintext f69f2445df4f9b17ad2b417be66c3710 Input Block 8521f2fd3c8eef2cdc3da7e5c44ea206 Output Block 3ff1caa1681fac09120eca307586e1a7 Ciphertext 3ff1caa1681fac09120eca307586e1a7 F.2.2 CBC-AES128.Decrypt Key 2b7e151628aed2a6abf7158809cf4f3c IV 000102030405060708090a0b0c0d0e0f Block #1 Ciphertext 7649abac8119b246cee98e9b12e9197d Input Block 7649abac8119b246cee98e9b12e9197d Output Block 6bc0bce12a459991e134741a7f9e1925 Plaintext 6bc1bee22e409f96e93d7e117393172a Block #2 Ciphertext 5086cb9b507219ee95db113a917678b2 Input Block 5086cb9b507219ee95db113a917678b2 Output Block d86421fb9f1a1eda505ee1375746972c Plaintext ae2d8a571e03ac9c9eb76fac45af8e51 Block #3 Ciphertext 73bed6b8e3c1743b7116e69e22229516 Input Block 73bed6b8e3c1743b7116e69e22229516 Output Block 604ed7ddf32efdff7020d0238b7c2a5d Plaintext 30c81c46a35ce411e5fbc1191a0a52ef Block #4 Ciphertext 3ff1caa1681fac09120eca307586e1a7 Input Block 3ff1caa1681fac09120eca307586e1a7 Output Block 8521f2fd3c8eef2cdc3da7e5c44ea206 Plaintext f69f2445df4f9b17ad2b417be66c3710 F.2.3 CBC-AES192.Encrypt Key 8e73b0f7da0e6452c810f32b809079e562f8ead2522c6b7b IV 000102030405060708090a0b0c0d0e0f Block #1 Plaintext 6bc1bee22e409f96e93d7e117393172a Input Block 6bc0bce12a459991e134741a7f9e1925 Output Block 4f021db243bc633d7178183a9fa071e8 Ciphertext 4f021db243bc633d7178183a9fa071e8 Block #2 Plaintext ae2d8a571e03ac9c9eb76fac45af8e51 Input Block e12f97e55dbfcfa1efcf7796da0fffb9 Output Block b4d9ada9ad7dedf4e5e738763f69145a Ciphertext b4d9ada9ad7dedf4e5e738763f69145a Block #3 Plaintext 30c81c46a35ce411e5fbc1191a0a52ef Input Block 8411b1ef0e2109e5001cf96f256346b5 Output Block 571b242012fb7ae07fa9baac3df102e0 Ciphertext 571b242012fb7ae07fa9baac3df102e0 Block #4 Plaintext f69f2445df4f9b17ad2b417be66c3710 Input Block a1840065cdb4e1f7d282fbd7db9d35f0 Output Block 08b0e27988598881d920a9e64f5615cd Ciphertext 08b0e27988598881d920a9e64f5615cd F.2.4 CBC-AES192.Decrypt Key 8e73b0f7da0e6452c810f32b809079e562f8ead2522c6b7b IV 000102030405060708090a0b0c0d0e0f Block #1 Ciphertext 4f021db243bc633d7178183a9fa071e8 Input Block 4f021db243bc633d7178183a9fa071e8 Output Block 6bc0bce12a459991e134741a7f9e1925 Plaintext 6bc1bee22e409f96e93d7e117393172a Block #2 Ciphertext b4d9ada9ad7dedf4e5e738763f69145a Input Block b4d9ada9ad7dedf4e5e738763f69145a Output Block e12f97e55dbfcfa1efcf7796da0fffb9 Plaintext ae2d8a571e03ac9c9eb76fac45af8e51 Block #3 Ciphertext 571b242012fb7ae07fa9baac3df102e0 Input Block 571b242012fb7ae07fa9baac3df102e0 Output Block 8411b1ef0e2109e5001cf96f256346b5 Plaintext 30c81c46a35ce411e5fbc1191a0a52ef Block #4 Ciphertext 08b0e27988598881d920a9e64f5615cd Input Block 08b0e27988598881d920a9e64f5615cd Output Block a1840065cdb4e1f7d282fbd7db9d35f0 Plaintext f69f2445df4f9b17ad2b417be66c3710 F.2.5 CBC-AES256.Encrypt Key 603deb1015ca71be2b73aef0857d7781 1f352c073b6108d72d9810a30914dff4 IV 000102030405060708090a0b0c0d0e0f Block #1 Plaintext 6bc1bee22e409f96e93d7e117393172a Input Block 6bc0bce12a459991e134741a7f9e1925 Output Block f58c4c04d6e5f1ba779eabfb5f7bfbd6 Ciphertext f58c4c04d6e5f1ba779eabfb5f7bfbd6 Block #2 Plaintext ae2d8a571e03ac9c9eb76fac45af8e51 Input Block 5ba1c653c8e65d26e929c4571ad47587 Output Block 9cfc4e967edb808d679f777bc6702c7d Ciphertext 9cfc4e967edb808d679f777bc6702c7d Block #3 Plaintext 30c81c46a35ce411e5fbc1191a0a52ef Input Block ac3452d0dd87649c8264b662dc7a7e92 Output Block 39f23369a9d9bacfa530e26304231461 Ciphertext 39f23369a9d9bacfa530e26304231461 Block #4 Plaintext f69f2445df4f9b17ad2b417be66c3710 Input Block cf6d172c769621d8081ba318e24f2371 Output Block b2eb05e2c39be9fcda6c19078c6a9d1b Ciphertext b2eb05e2c39be9fcda6c19078c6a9d1b F.2.6 CBC-AES256.Decrypt Key 603deb1015ca71be2b73aef0857d7781 1f352c073b6108d72d9810a30914dff4 IV 000102030405060708090a0b0c0d0e0f Block #1 Ciphertext f58c4c04d6e5f1ba779eabfb5f7bfbd6 Input Block f58c4c04d6e5f1ba779eabfb5f7bfbd6 Output Block 6bc0bce12a459991e134741a7f9e1925 Plaintext 6bc1bee22e409f96e93d7e117393172a Block #2 Ciphertext 9cfc4e967edb808d679f777bc6702c7d Input Block 9cfc4e967edb808d679f777bc6702c7d Output Block 5ba1c653c8e65d26e929c4571ad47587 Plaintext ae2d8a571e03ac9c9eb76fac45af8e51 Block #3 Ciphertext 39f23369a9d9bacfa530e26304231461 Input Block 39f23369a9d9bacfa530e26304231461 Output Block ac3452d0dd87649c8264b662dc7a7e92 Plaintext 30c81c46a35ce411e5fbc1191a0a52ef Block #4 Ciphertext b2eb05e2c39be9fcda6c19078c6a9d1b Input Block b2eb05e2c39be9fcda6c19078c6a9d1b Output Block cf6d172c769621d8081ba318e24f2371 Plaintext f69f2445df4f9b17ad2b417be66c3710 */