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/* test_cbc_mode.c - TinyCrypt implementation of some AES-CBC tests */
/*
* Copyright (C) 2017 by Intel Corporation, All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of Intel Corporation nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*
* DESCRIPTION
* This module tests the following AES-CBC Mode routines:
*
* Scenarios tested include:
* - AES128 CBC mode encryption SP 800-38a tests
*/
#include <tinycrypt/cbc_mode.h>
#include <tinycrypt/constants.h>
#include <test_utils.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
/*
* NIST test vectors from SP 800-38a:
*
* 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
*/
const uint8_t key[16] = {
0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6, 0xab, 0xf7, 0x15, 0x88,
0x09, 0xcf, 0x4f, 0x3c
};
const uint8_t iv[16] = {
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b,
0x0c, 0x0d, 0x0e, 0x0f
};
const uint8_t plaintext[64] = {
0x6b, 0xc1, 0xbe, 0xe2, 0x2e, 0x40, 0x9f, 0x96, 0xe9, 0x3d, 0x7e, 0x11,
0x73, 0x93, 0x17, 0x2a, 0xae, 0x2d, 0x8a, 0x57, 0x1e, 0x03, 0xac, 0x9c,
0x9e, 0xb7, 0x6f, 0xac, 0x45, 0xaf, 0x8e, 0x51, 0x30, 0xc8, 0x1c, 0x46,
0xa3, 0x5c, 0xe4, 0x11, 0xe5, 0xfb, 0xc1, 0x19, 0x1a, 0x0a, 0x52, 0xef,
0xf6, 0x9f, 0x24, 0x45, 0xdf, 0x4f, 0x9b, 0x17, 0xad, 0x2b, 0x41, 0x7b,
0xe6, 0x6c, 0x37, 0x10
};
const uint8_t ciphertext[80] = {
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b,
0x0c, 0x0d, 0x0e, 0x0f, 0x76, 0x49, 0xab, 0xac, 0x81, 0x19, 0xb2, 0x46,
0xce, 0xe9, 0x8e, 0x9b, 0x12, 0xe9, 0x19, 0x7d, 0x50, 0x86, 0xcb, 0x9b,
0x50, 0x72, 0x19, 0xee, 0x95, 0xdb, 0x11, 0x3a, 0x91, 0x76, 0x78, 0xb2,
0x73, 0xbe, 0xd6, 0xb8, 0xe3, 0xc1, 0x74, 0x3b, 0x71, 0x16, 0xe6, 0x9e,
0x22, 0x22, 0x95, 0x16, 0x3f, 0xf1, 0xca, 0xa1, 0x68, 0x1f, 0xac, 0x09,
0x12, 0x0e, 0xca, 0x30, 0x75, 0x86, 0xe1, 0xa7
};
/*
* NIST SP 800-38a CBC Test for encryption and decryption.
*/
int test_1_and_2(void)
{
struct tc_aes_key_sched_struct a;
uint8_t iv_buffer[16];
uint8_t encrypted[80];
uint8_t decrypted[64];
uint8_t *p;
unsigned int length;
int result = TC_PASS;
(void)tc_aes128_set_encrypt_key(&a, key);
(void)memcpy(iv_buffer, iv, TC_AES_BLOCK_SIZE);
TC_PRINT("CBC test #1 (encryption SP 800-38a tests):\n");
if (tc_cbc_mode_encrypt(encrypted, sizeof(plaintext) + TC_AES_BLOCK_SIZE,
plaintext, sizeof(plaintext), iv_buffer, &a) == 0) {
TC_ERROR("CBC test #1 (encryption SP 800-38a tests) failed in "
"%s.\n", __func__);
result = TC_FAIL;
goto exitTest1;
}
result = check_result(1, ciphertext, sizeof(encrypted), encrypted,
sizeof(encrypted));
TC_END_RESULT(result);
TC_PRINT("CBC test #2 (decryption SP 800-38a tests):\n");
(void)tc_aes128_set_decrypt_key(&a, key);
p = &encrypted[TC_AES_BLOCK_SIZE];
length = ((unsigned int) sizeof(encrypted)) - TC_AES_BLOCK_SIZE;
if (tc_cbc_mode_decrypt(decrypted, length - TC_AES_BLOCK_SIZE, p, length,
encrypted, &a) == 0) {
TC_ERROR("CBC test #2 (decryption SP 800-38a tests) failed in. "
"%s\n", __func__);
result = TC_FAIL;
goto exitTest1;
}
result = check_result(2, plaintext, sizeof(decrypted), decrypted,
sizeof(decrypted));
exitTest1:
TC_END_RESULT(result);
return result;
}
/*
* Main task to test AES
*/
int main(void)
{
int result = TC_PASS;
TC_START("Performing AES128 tests:");
TC_PRINT("Performing CBC tests:\n");
result = test_1_and_2();
if (result == TC_FAIL) {
/* terminate test */
TC_ERROR("CBC test #1 failed.\n");
goto exitTest;
}
TC_PRINT("All CBC tests succeeded!\n");
exitTest:
TC_END_RESULT(result);
TC_END_REPORT(result);
return result;
}
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