tests/test-gc-des.c

   1 /*
   2  * Copyright (C) 2005, 2010-2017 Free Software Foundation, Inc.
   3  * Written by Simon Josefsson
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 3, or (at your option)
   8  * any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, see <http://www.gnu.org/licenses/>.  */
  17
  18 #include <config.h>
  19
  20 #include <stdio.h>
  21 #include <string.h>
  22 #include "gc.h"
  23
  24 int
  25 main (int argc, char *argv[])
  26 {
  27   gc_cipher_handle ctx;
  28   Gc_rc rc;
  29
  30   rc = gc_init ();
  31   if (rc != GC_OK)
  32     {
  33       printf ("gc_init() failed\n");
  34       return 1;
  35     }
  36
  37   /*
  38    * DES Maintenance Test
  39    */
  40   {
  41     int i;
  42     char key[8] = { 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55 };
  43     char input[8] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
  44     char result[8] = { 0x24, 0x6e, 0x9d, 0xb9, 0xc5, 0x50, 0x38, 0x1a };
  45     char temp1[8], temp2[8], temp3[8];
  46
  47     for (i = 0; i < 64; ++i)
  48       {
  49
  50         rc = gc_cipher_open (GC_DES, GC_ECB, &ctx);
  51         if (rc != GC_OK)
  52           return 1;
  53
  54         rc = gc_cipher_setkey (ctx, 8, key);
  55         if (rc != GC_OK)
  56           return 1;
  57
  58         memcpy (temp1, input, 8);
  59         rc = gc_cipher_encrypt_inline (ctx, 8, temp1);
  60         if (rc != GC_OK)
  61           return 1;
  62
  63         memcpy (temp2, temp1, 8);
  64         rc = gc_cipher_encrypt_inline (ctx, 8, temp2);
  65         if (rc != GC_OK)
  66           return 1;
  67
  68         rc = gc_cipher_setkey (ctx, 8, temp2);
  69         if (rc != GC_OK)
  70           return 1;
  71
  72         memcpy (temp3, temp1, 8);
  73         rc = gc_cipher_decrypt_inline (ctx, 8, temp3);
  74         if (rc != GC_OK)
  75           return 1;
  76
  77         memcpy (key, temp3, 8);
  78         memcpy (input, temp1, 8);
  79       }
  80     if (memcmp (temp3, result, 8))
  81       return 1;
  82   }
  83
  84   gc_done ();
  85
  86   return 0;
  87 }