tests/test-gc-des.c

   1 /*
   2  * Copyright (C) 2005, 2010-2018 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 <https://www.gnu.org/licenses/>.  */
  17
  18 #include <config.h>
  19
  20 #include "gc.h"
  21
  22 #include <stdio.h>
  23 #include <string.h>
  24
  25 int
  26 main (int argc, char *argv[])
  27 {
  28   gc_cipher_handle ctx;
  29   Gc_rc rc;
  30
  31   rc = gc_init ();
  32   if (rc != GC_OK)
  33     {
  34       printf ("gc_init() failed\n");
  35       return 1;
  36     }
  37
  38   /*
  39    * DES Maintenance Test
  40    */
  41   {
  42     int i;
  43     char key[8] = { 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55 };
  44     char input[8] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
  45     char result[8] = { 0x24, 0x6e, 0x9d, 0xb9, 0xc5, 0x50, 0x38, 0x1a };
  46     char temp1[8], temp2[8], temp3[8];
  47
  48     for (i = 0; i < 64; ++i)
  49       {
  50
  51         rc = gc_cipher_open (GC_DES, GC_ECB, &ctx);
  52         if (rc != GC_OK)
  53           return 1;
  54
  55         rc = gc_cipher_setkey (ctx, 8, key);
  56         if (rc != GC_OK)
  57           return 1;
  58
  59         memcpy (temp1, input, 8);
  60         rc = gc_cipher_encrypt_inline (ctx, 8, temp1);
  61         if (rc != GC_OK)
  62           return 1;
  63
  64         memcpy (temp2, temp1, 8);
  65         rc = gc_cipher_encrypt_inline (ctx, 8, temp2);
  66         if (rc != GC_OK)
  67           return 1;
  68
  69         rc = gc_cipher_setkey (ctx, 8, temp2);
  70         if (rc != GC_OK)
  71           return 1;
  72
  73         memcpy (temp3, temp1, 8);
  74         rc = gc_cipher_decrypt_inline (ctx, 8, temp3);
  75         if (rc != GC_OK)
  76           return 1;
  77
  78         memcpy (key, temp3, 8);
  79         memcpy (input, temp1, 8);
  80       }
  81     if (memcmp (temp3, result, 8))
  82       return 1;
  83   }
  84
  85   gc_done ();
  86
  87   return 0;
  88 }