view tests/test-gc-arcfour.c @ 7376:5b76a3b030e7

.
author Karl Berry <karl@freefriends.org>
date Wed, 27 Sep 2006 07:37:50 +0000
parents ee289f3e3269
children 633babea5f62
line wrap: on
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/*
 * Copyright (C) 2005 Free Software Foundation
 * Written by Simon Josefsson
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2, or (at your option)
 * any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301, USA.  */

#ifdef HAVE_CONFIG_H
# include <config.h>
#endif

#include <stdio.h>
#include <string.h>
#include "gc.h"

int
main (int argc, char *argv[])
{
  gc_cipher_handle ctx;
  /* Test vector from Cryptlib via Libgcrypt labeled there: "from the
     State/Commerce Department". */
  static char key_1[] = { 0x61, 0x8A, 0x63, 0xD2, 0xFB };
  static char plaintext_1[] = { 0xDC, 0xEE, 0x4C, 0xF9, 0x2C };
  static const char ciphertext_1[] = { 0xF1, 0x38, 0x29, 0xC9, 0xDE };
  char scratch[16];
  Gc_rc rc;

  rc = gc_init ();
  if (rc != GC_OK)
    {
      printf ("gc_init() failed\n");
      return 1;
    }

  rc = gc_cipher_open (GC_ARCFOUR40, GC_STREAM, &ctx);
  if (rc != GC_OK)
    return 1;

  rc = gc_cipher_setkey (ctx, sizeof (key_1), key_1);
  if (rc != GC_OK)
    return 1;

  memcpy (scratch, plaintext_1, sizeof (plaintext_1));
  rc = gc_cipher_encrypt_inline (ctx, sizeof (plaintext_1), scratch);
  if (rc != GC_OK)
    return 1;

  if (memcmp (scratch, ciphertext_1, sizeof (ciphertext_1)))
    {
      size_t i;
      printf ("expected:\n");
      for (i = 0; i < 5; i++)
	printf ("%02x ", scratch[i] & 0xFF);
      printf ("\ncomputed:\n");
      for (i = 0; i < 5; i++)
	printf ("%02x ", ciphertext_1[i] & 0xFF);
      printf ("\n");
      return 1;
    }

  /* decrypt */

  rc = gc_cipher_setkey (ctx, sizeof (key_1), key_1);
  if (rc != GC_OK)
    return 1;

  rc = gc_cipher_decrypt_inline (ctx, sizeof (plaintext_1), scratch);
  if (rc != GC_OK)
    return 1;

  if (memcmp (scratch, plaintext_1, sizeof (plaintext_1)))
    {
      size_t i;
      printf ("expected:\n");
      for (i = 0; i < 5; i++)
	printf ("%02x ", plaintext_1[i] & 0xFF);
      printf ("\ncomputed:\n");
      for (i = 0; i < 5; i++)
	printf ("%02x ", scratch[i] & 0xFF);
      printf ("\n");
      return 1;
    }

  gc_done ();

  return 0;
}