1 /*-
2 * Copyright (c) 2003 Poul-Henning Kamp
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * This test checks for inplace decryption working. This is the case
27 * where the same buffer is passed as input and output to
28 * rijndael_blockDecrypt().
29 */
30
31 #include <stdio.h>
32 #include <sys/param.h>
33 #include <sys/types.h>
34
35 #include <crypto/rijndael/rijndael-api-fst.h>
36
37 #define LL 32
38 int
main(int argc,char ** argv)39 main(int argc, char **argv)
40 {
41 keyInstance ki;
42 cipherInstance ci;
43 uint8_t key[16];
44 uint8_t in[LL];
45 uint8_t out[LL];
46 int i, j;
47
48 rijndael_cipherInit(&ci, MODE_CBC, NULL);
49 for (i = 0; i < 16; i++)
50 key[i] = i;
51 rijndael_makeKey(&ki, DIR_DECRYPT, 128, key);
52 for (i = 0; i < LL; i++)
53 in[i] = i;
54 rijndael_blockDecrypt(&ci, &ki, in, LL * 8, out);
55 for (i = 0; i < LL; i++)
56 printf("%02x", out[i]);
57 putchar('\n');
58 rijndael_blockDecrypt(&ci, &ki, in, LL * 8, in);
59 j = 0;
60 for (i = 0; i < LL; i++) {
61 printf("%02x", in[i]);
62 if (in[i] != out[i])
63 j++;
64 }
65 putchar('\n');
66 if (j != 0) {
67 fprintf(stderr,
68 "Error: inplace decryption fails in %d places\n", j);
69 return (1);
70 } else {
71 return (0);
72 }
73 }
74