X-Git-Url: https://git.distorted.org.uk/u/mdw/catacomb/blobdiff_plain/2e8eb64a72472bea4faba1cee5edde4fe3616808..0ba18b905ee653e04e60d31a0253b8adcd9b723b:/noekeon.h

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+/* -*-c-*-
+ *
+ * $Id: noekeon.h,v 1.1 2001/05/08 22:17:41 mdw Exp $
+ *
+ * The Noekeon block cipher
+ *
+ * (c) 2000 Straylight/Edgeware
+ */
+
+/*----- Licensing notice --------------------------------------------------* 
+ *
+ * This file is part of Catacomb.
+ *
+ * Catacomb is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Library General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ * 
+ * Catacomb 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 Library General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Library General Public
+ * License along with Catacomb; if not, write to the Free
+ * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ * MA 02111-1307, USA.
+ */
+
+/*----- Revision history --------------------------------------------------* 
+ *
+ * $Log: noekeon.h,v $
+ * Revision 1.1  2001/05/08 22:17:41  mdw
+ * New cipher Noekeon added.
+ *
+ * Revision 1.3  2001/05/07 17:31:53  mdw
+ * Separate out key scheduling.
+ *
+ * Revision 1.2  2000/10/08 15:48:58  mdw
+ * Update comments now that AES has been chosen.
+ *
+ * Revision 1.1  2000/06/17 11:56:07  mdw
+ * New cipher.
+ *
+ */
+
+/*----- Notes on the Noekeon block cipher --------------------------------*
+ *
+ * A Nessie entry, by Joan Daemen, Michael Peeters, Gilles Van Assche and
+ * Vincent Rijmen, two of whom were the designers of the AES winner
+ * Rijndael.  It's a simple cipher, based on Serpent-style bit-slicing.
+ * Speed is about middle-of-the-road -- about as fast as SAFER, faster than
+ * MARS.
+ */
+
+#ifndef CATACOMB_NOEKEON_H
+#define CATACOMB_NOEKEON_H
+
+#ifdef __cplusplus
+  extern "C" {
+#endif
+
+/*----- Header files ------------------------------------------------------*/
+
+#include <stddef.h>
+
+#include <mLib/bits.h>
+
+/*----- Magical numbers ---------------------------------------------------*/
+
+#define NOEKEON_BLKSZ 16
+#define NOEKEON_KEYSZ 16
+#define NOEKEON_CLASS (N, B, 128)
+
+extern const octet noekeon_keysz[];
+
+/*----- Data structures ---------------------------------------------------*/
+
+typedef struct noekeon_ctx {
+  uint32 k[4];
+} noekeon_ctx;
+
+/*----- Functions provided ------------------------------------------------*/
+
+/* --- @noekeon_init@ --- *
+ *
+ * Arguments:	@noekeon_ctx *k@ = pointer to context to initialize
+ *		@const void *buf@ = pointer to buffer of key material
+ *		@size_t sz@ = size of the key material
+ *
+ * Returns:	---
+ *
+ * Use:		Initializes a Noekeon context with a particular key.  This
+ *		uses indirect keying.  The key must be 128 bits long.
+ */
+
+extern void noekeon_init(noekeon_ctx */*k*/,
+			 const void */*buf*/, size_t /*sz*/);
+
+/* --- @noekeon_eblk@, @noekeon_dblk@ --- *
+ *
+ * Arguments:	@const noekeon_ctx *k@ = pointer to Noekeon context
+ *		@const uint32 s[4]@ = pointer to source block
+ *		@uint32 d[4]@ = pointer to destination block
+ *
+ * Returns:	---
+ *
+ * Use:		Low-level block encryption and decryption.
+ */
+
+extern void noekeon_eblk(const noekeon_ctx */*k*/,
+			 const uint32 */*s*/, uint32 */*dst*/);
+extern void noekeon_dblk(const noekeon_ctx */*k*/,
+			 const uint32 */*s*/, uint32 */*dst*/);
+
+/*----- That's all, folks -------------------------------------------------*/
+
+#ifdef __cplusplus
+  }
+#endif
+
+#endif