--- /dev/null
+/* cast6-sbox.h */
+/*
+ This file is part of the AVR-Crypto-Lib.
+ Copyright (C) 2008 Daniel Otte (daniel.otte@rub.de)
+
+ 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 <http://www.gnu.org/licenses/>.
+*/
+/*
+ * File: cast6-sbox.h
+ * Author: Daniel Otte
+ * Date: 26.07.2006
+ * License: GPL
+ * Description: sboxes for CAST6 (aka CAST-256) cipher algorithm as described in RFC 2612.
+ *
+ */
+
+#ifndef CAST6_SBOX_H_
+#define CAST6_SBOX_H_
+
+#include <avr/pgmspace.h>
+#include <stdint.h>
+
+extern const uint32_t s1[] ;
+extern const uint32_t s2[] ;
+extern const uint32_t s3[] ;
+extern const uint32_t s4[] ;
+
+#endif
+