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/*-
* Copyright (c) 2003 Poul-Henning Kamp
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
*
* $FreeBSD$
*
* This test checks for inplace decryption working. This is the case
* where the same buffer is passed as input and output to
* rijndael_blockDecrypt().
*/
#include <stdio.h>
#include <sys/param.h>
#include <sys/types.h>
#include <crypto/rijndael/rijndael-api-fst.h>
#define LL 32
int
main(int argc, char **argv)
{
keyInstance ki;
cipherInstance ci;
uint8_t key[16];
uint8_t in[LL];
uint8_t out[LL];
int i, j;
rijndael_cipherInit(&ci, MODE_CBC, NULL);
for (i = 0; i < 16; i++)
key[i] = i;
rijndael_makeKey(&ki, DIR_DECRYPT, 128, key);
for (i = 0; i < LL; i++)
in[i] = i;
rijndael_blockDecrypt(&ci, &ki, in, LL * 8, out);
for (i = 0; i < LL; i++)
printf("%02x", out[i]);
putchar('\n');
rijndael_blockDecrypt(&ci, &ki, in, LL * 8, in);
j = 0;
for (i = 0; i < LL; i++) {
printf("%02x", in[i]);
if (in[i] != out[i])
j++;
}
putchar('\n');
if (j != 0) {
fprintf(stderr,
"Error: inplace decryption fails in %d places\n", j);
return (1);
} else {
return (0);
}
}
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