* Added CAST128.

Rev: src/nettle/Makefile.am:1.8
Rev: src/nettle/cast128.c:1.1
Rev: src/nettle/cast128.h:1.1
Rev: src/nettle/cast128_sboxes.h:1.1

1 files changed, 64 insertions, 0 deletions

diff --git a/cast128.h b/cast128.h
new file mode 100644
index 00000000..fb6e0e31
--- /dev/null
+++ b/cast128.h
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+/* cast128.h
+ *
+ * The CAST-128 block cipher.
+ */
+
+/*	CAST-128 in C
+ *	Written by Steve Reid <sreid@sea-to-sky.net>
+ *	100% Public Domain - no warranty
+ *	Released 1997.10.11
+ */
+
+/* nettle, low-level cryptographics library
+ *
+ * Copyright (C) 2001 Niels Möller
+ *  
+ * The nettle library is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or (at your
+ * option) any later version.
+ * 
+ * The nettle library 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 Lesser General Public
+ * License for more details.
+ * 
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with the GNU MP Library; see the file COPYING.LIB.  If not, write to
+ * the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ * MA 02111-1307, USA.
+ */
+ 
+#ifndef NETTLE_CAST128_H_INCLUDED
+#define NETTLE_CAST128_H_INCLUDED
+
+#include <stdint.h>
+
+#define CAST128_BLOCK_SIZE 8
+
+/* Variable key size between 40 and 128. */
+#define CAST128_MIN_KEY_SIZE 5
+#define CAST128_MAX_KEY_SIZE 16
+
+#define CAST128_KEY_SIZE 16
+
+struct cast128_ctx
+{
+  uint32_t keys[32];  /* Key, after expansion */
+  unsigned rounds;    /* Number of rounds to use, 12 or 16 */
+};
+
+void
+cast128_set_key(struct cast128_ctx *ctx,
+		unsigned length, const uint8_t *key);
+
+void
+cast128_encrypt(struct cast128_ctx *ctx,
+		unsigned length, uint8_t *dst,
+		const uint8_t *src);
+void
+cast128_decrypt(struct cast128_ctx *ctx,
+		unsigned length, uint8_t *dst,
+		const uint8_t *src);
+
+#endif /* NETTLE_CAST128_H_INCLUDED */