tests/test-gc-des.c

   1 /*
   2  * Copyright (C) 2005, 2010-2024 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_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     gc_cipher_handle ctx_array[64];
  47
  48     for (i = 0; i < 64; ++i)
  49       {
  50         gc_cipher_handle ctx;
  51
  52         rc = gc_cipher_open (GC_DES, GC_ECB, &ctx);
  53         if (rc != GC_OK)
  54           return 1;
  55
  56         rc = gc_cipher_setkey (ctx, 8, key);
  57         if (rc != GC_OK)
  58           return 1;
  59
  60         memcpy (temp1, input, 8);
  61         rc = gc_cipher_encrypt_inline (ctx, 8, temp1);
  62         if (rc != GC_OK)
  63           return 1;
  64
  65         memcpy (temp2, temp1, 8);
  66         rc = gc_cipher_encrypt_inline (ctx, 8, temp2);
  67         if (rc != GC_OK)
  68           return 1;
  69
  70         rc = gc_cipher_setkey (ctx, 8, temp2);
  71         if (rc != GC_OK)
  72           return 1;
  73
  74         memcpy (temp3, temp1, 8);
  75         rc = gc_cipher_decrypt_inline (ctx, 8, temp3);
  76         if (rc != GC_OK)
  77           return 1;
  78
  79         memcpy (key, temp3, 8);
  80         memcpy (input, temp1, 8);
  81
  82         ctx_array[i] = ctx;
  83       }
  84     if (memcmp (temp3, result, 8))
  85       return 1;
  86
  87     for (i = 0; i < 64; ++i)
  88       gc_cipher_close (ctx_array[i]);
  89   }
  90
  91   gc_done ();
  92
  93   return 0;
  94 }