tests/test-gc-arcfour.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   /* Test vector from Cryptlib via Libgcrypt labeled there: "from the
  29      State/Commerce Department". */
  30   static char key_1[] = { 0x61, 0x8A, 0x63, 0xD2, 0xFB };
  31   static char plaintext_1[] = { 0xDC, 0xEE, 0x4C, 0xF9, 0x2C };
  32   static const char ciphertext_1[] = { 0xF1, 0x38, 0x29, 0xC9, 0xDE };
  33   char scratch[16];
  34   Gc_rc rc;
  35
  36   rc = gc_init ();
  37   if (rc != GC_OK)
  38     {
  39       printf ("gc_init() failed\n");
  40       return 1;
  41     }
  42
  43   rc = gc_cipher_open (GC_ARCFOUR40, GC_STREAM, &ctx);
  44   if (rc != GC_OK)
  45     return 1;
  46
  47   rc = gc_cipher_setkey (ctx, sizeof (key_1), key_1);
  48   if (rc != GC_OK)
  49     return 1;
  50
  51   memcpy (scratch, plaintext_1, sizeof (plaintext_1));
  52   rc = gc_cipher_encrypt_inline (ctx, sizeof (plaintext_1), scratch);
  53   if (rc != GC_OK)
  54     return 1;
  55
  56   if (memcmp (scratch, ciphertext_1, sizeof (ciphertext_1)))
  57     {
  58       size_t i;
  59       printf ("expected:\n");
  60       for (i = 0; i < 5; i++)
  61         printf ("%02x ", scratch[i] & 0xFF);
  62       printf ("\ncomputed:\n");
  63       for (i = 0; i < 5; i++)
  64         printf ("%02x ", ciphertext_1[i] & 0xFF);
  65       printf ("\n");
  66       return 1;
  67     }
  68
  69   /* decrypt */
  70
  71   rc = gc_cipher_setkey (ctx, sizeof (key_1), key_1);
  72   if (rc != GC_OK)
  73     return 1;
  74
  75   rc = gc_cipher_decrypt_inline (ctx, sizeof (plaintext_1), scratch);
  76   if (rc != GC_OK)
  77     return 1;
  78
  79   if (memcmp (scratch, plaintext_1, sizeof (plaintext_1)))
  80     {
  81       size_t i;
  82       printf ("expected:\n");
  83       for (i = 0; i < 5; i++)
  84         printf ("%02x ", plaintext_1[i] & 0xFF);
  85       printf ("\ncomputed:\n");
  86       for (i = 0; i < 5; i++)
  87         printf ("%02x ", scratch[i] & 0xFF);
  88       printf ("\n");
  89       return 1;
  90     }
  91
  92   gc_done ();
  93
  94   return 0;
  95 }