sys/crypto/rijndael/test00.c

   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  * $FreeBSD$
  27  *
  28  * This test checks for inplace decryption working.  This is the case
  29  * where the same buffer is passed as input and output to
  30  * rijndael_blockDecrypt().
  31  */
  32
  33 #include <stdio.h>
  34 #include <sys/param.h>
  35 #include <sys/types.h>
  36
  37 #include <crypto/rijndael/rijndael-api-fst.h>
  38
  39 #define LL 32
  40 int
  41 main(int argc, char **argv)
  42 {
  43         keyInstance ki;
  44         cipherInstance ci;
  45         uint8_t key[16];
  46         uint8_t in[LL];
  47         uint8_t out[LL];
  48         int i, j;
  49
  50         rijndael_cipherInit(&ci, MODE_CBC, NULL);
  51         for (i = 0; i < 16; i++)
  52                 key[i] = i;
  53         rijndael_makeKey(&ki, DIR_DECRYPT, 128, key);
  54         for (i = 0; i < LL; i++)
  55                 in[i] = i;
  56         rijndael_blockDecrypt(&ci, &ki, in, LL * 8, out);
  57         for (i = 0; i < LL; i++)
  58                 printf("%02x", out[i]);
  59         putchar('\n');
  60         rijndael_blockDecrypt(&ci, &ki, in, LL * 8, in);
  61         j = 0;
  62         for (i = 0; i < LL; i++) {
  63                 printf("%02x", in[i]);
  64                 if (in[i] != out[i])
  65                         j++;
  66         }
  67         putchar('\n');
  68         if (j != 0) {
  69                 fprintf(stderr,
  70                     "Error: inplace decryption fails in %d places\n", j);
  71                 return (1);
  72         } else {
  73                 return (0);
  74         }
  75 }