kc3-lang/gnulib/tests/test-arcfour.c

• Show log

  Commit

• Hash : 7b089321
  Author :
  Date : 2025-01-01T09:24:36
  

  maint: run 'make update-copyright'
  

Download

• tests/test-arcfour.c

• /*
   * Copyright (C) 2005, 2010-2025 Free Software Foundation, Inc.
   * 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 3 of the License, 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, see <https://www.gnu.org/licenses/>.  */
  
  #include <config.h>
  
  #include "arcfour.h"
  
  #include <stdio.h>
  #include <string.h>
  
  int
  main (int argc, char *argv[])
  {
    arcfour_context 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];
  
    arcfour_setkey (&ctx, key_1, sizeof (key_1));
    arcfour_stream (&ctx, plaintext_1, scratch, sizeof (plaintext_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 */
  
    arcfour_setkey (&ctx, key_1, sizeof (key_1));
    arcfour_stream (&ctx, scratch, scratch, sizeof (plaintext_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;
      }
  
  
    return 0;
  }
  

Download