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/* Copyright (c) 2015, Google Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
#include <stdio.h>
#include <string.h>
#include <openssl/aes.h>
#include <openssl/crypto.h>
static bool TestAES(const uint8_t *key, size_t key_len,
const uint8_t plaintext[AES_BLOCK_SIZE],
const uint8_t ciphertext[AES_BLOCK_SIZE]) {
AES_KEY aes_key;
if (AES_set_encrypt_key(key, key_len * 8, &aes_key) != 0) {
fprintf(stderr, "AES_set_encrypt_key failed\n");
return false;
}
// Test encryption.
uint8_t block[AES_BLOCK_SIZE];
AES_encrypt(plaintext, block, &aes_key);
if (memcmp(block, ciphertext, AES_BLOCK_SIZE) != 0) {
fprintf(stderr, "AES_encrypt gave the wrong output\n");
return false;
}
// Test in-place encryption.
memcpy(block, plaintext, AES_BLOCK_SIZE);
AES_encrypt(block, block, &aes_key);
if (memcmp(block, ciphertext, AES_BLOCK_SIZE) != 0) {
fprintf(stderr, "AES_encrypt gave the wrong output\n");
return false;
}
if (AES_set_decrypt_key(key, key_len * 8, &aes_key) != 0) {
fprintf(stderr, "AES_set_decrypt_key failed\n");
return false;
}
// Test decryption.
AES_decrypt(ciphertext, block, &aes_key);
if (memcmp(block, plaintext, AES_BLOCK_SIZE) != 0) {
fprintf(stderr, "AES_decrypt gave the wrong output\n");
return false;
}
// Test in-place decryption.
memcpy(block, ciphertext, AES_BLOCK_SIZE);
AES_decrypt(block, block, &aes_key);
if (memcmp(block, plaintext, AES_BLOCK_SIZE) != 0) {
fprintf(stderr, "AES_decrypt gave the wrong output\n");
return false;
}
return true;
}
int main() {
CRYPTO_library_init();
// Test vectors from FIPS-197, Appendix C.
if (!TestAES((const uint8_t *)"\x00\x01\x02\x03\x04\x05\x06\x07"
"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f",
128 / 8,
(const uint8_t *)"\x00\x11\x22\x33\x44\x55\x66\x77"
"\x88\x99\xaa\xbb\xcc\xdd\xee\xff",
(const uint8_t *)"\x69\xc4\xe0\xd8\x6a\x7b\x04\x30"
"\xd8\xcd\xb7\x80\x70\xb4\xc5\x5a") ||
!TestAES((const uint8_t *)"\x00\x01\x02\x03\x04\x05\x06\x07"
"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f"
"\x10\x11\x12\x13\x14\x15\x16\x17",
192 / 8,
(const uint8_t *)"\x00\x11\x22\x33\x44\x55\x66\x77"
"\x88\x99\xaa\xbb\xcc\xdd\xee\xff",
(const uint8_t *)"\xdd\xa9\x7c\xa4\x86\x4c\xdf\xe0"
"\x6e\xaf\x70\xa0\xec\x0d\x71\x91") ||
!TestAES((const uint8_t *)"\x00\x01\x02\x03\x04\x05\x06\x07"
"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f"
"\x10\x11\x12\x13\x14\x15\x16\x17"
"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f",
256 / 8,
(const uint8_t *)"\x00\x11\x22\x33\x44\x55\x66\x77"
"\x88\x99\xaa\xbb\xcc\xdd\xee\xff",
(const uint8_t *)"\x8e\xa2\xb7\xca\x51\x67\x45\xbf"
"\xea\xfc\x49\x90\x4b\x49\x60\x89")) {
return false;
}
printf("PASS\n");
return 0;
}
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