Add arcfour module.

[gnulib.git] / tests / test-arcfour.c

diff --git a/tests/test-arcfour.c b/tests/test-arcfour.c
new file mode 100644 (file)
index 0000000..9540d01
--- /dev/null
+++ b/tests/test-arcfour.c
@@ -0,0 +1,73 @@
+/*
+ * 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 "arcfour.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;
+}