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/**********************************************************************
Copyright(c) 2011-2016 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.
**********************************************************************/
#include <stdlib.h>
#include <stdio.h>
#include <aes_keyexp.h>
#include "xts_256_vect.h"
int main(void)
{
// Temporary array for the calculated vectors
uint8_t *ct_test;
uint8_t *pt_test;
// Arrays for expanded keys, null_key is a dummy vector (decrypt key not
// needed for the tweak part of the decryption)
uint8_t expkey1_enc[16 * 15], expkey2_enc[16 * 15];
uint8_t expkey1_dec[16 * 15], null_key[16 * 15];
int i, j;
// --- Encryption test ---
// Loop over the vectors
for (i = 0; i < NVEC; i++) {
// Allocate space for the calculated ciphertext
ct_test = malloc(vlist[i].ptlen);
if (ct_test == NULL) {
printf("Can't allocate ciphertext memory\n");
return -1;
}
// Pre-expand our keys (will only use the encryption ones here)
aes_keyexp_256(vlist[i].key1, expkey1_enc, expkey1_dec);
aes_keyexp_256(vlist[i].key2, expkey2_enc, null_key);
XTS_AES_256_enc_expanded_key(expkey2_enc, expkey1_enc, vlist[i].TW,
vlist[i].ptlen, vlist[i].PTX, ct_test);
// Carry out comparison of the calculated ciphertext with
// the reference
for (j = 0; j < vlist[i].ptlen; j++) {
if (ct_test[j] != vlist[i].CTX[j]) {
printf("\nXTS_AES_256_enc: Vector %d: ", i + 10);
printf("failed at byte %d! \n", j);
return -1;
}
}
printf(".");
}
// --- Decryption test ---
// Loop over the vectors
for (i = 0; i < NVEC; i++) {
// Allocate space for the calculated plaintext
pt_test = malloc(vlist[i].ptlen);
if (pt_test == NULL) {
printf("Can't allocate plaintext memory\n");
return -1;
}
// Pre-expand keys for the decryption
aes_keyexp_256(vlist[i].key1, expkey1_enc, expkey1_dec);
aes_keyexp_256(vlist[i].key2, expkey2_enc, null_key);
// Note, encryption key is re-used for the tweak decryption step
XTS_AES_256_dec_expanded_key(expkey2_enc, expkey1_dec, vlist[i].TW,
vlist[i].ptlen, vlist[i].CTX, pt_test);
// Carry out comparison of the calculated ciphertext with
// the reference
for (j = 0; j < vlist[i].ptlen; j++) {
if (pt_test[j] != vlist[i].PTX[j]) {
printf("\nXTS_AES_256_dec: Vector %d: ", i + 10);
printf("failed at byte %d! \n", j);
return -1;
}
}
printf(".");
}
printf("Pass\n");
return 0;
}
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