Rearrange the file tree.

[u/mdw/catacomb] / serpent.h

diff --git a/serpent.h b/serpent.h
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-/* -*-c-*-
- *
- * $Id: serpent.h,v 1.3 2004/04/08 01:36:15 mdw Exp $
- *
- * The Serpent 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.
- */
-
-/*----- Notes on the Serpent block cipher ---------------------------------*
- *
- * Serpent was designed and proposed for the AES contest by Ross Anderson,
- * Eli Biham and Lars Knudsen.  It's not particularly quick, but is
- * stunningly secure.  The best differential and linear attacks are
- * speculated to require %$2^{256}$% texts (it's a 128-bit block cipher).
- * The designers originally intended to file a patent, but failed to persue
- * it.  Use of the algorithm is completely unencumbered.
- */
-
-#ifndef CATACOMB_SERPENT_H
-#define CATACOMB_SERPENT_H
-
-#ifdef __cplusplus
-  extern "C" {
-#endif
-
-/*----- Header files ------------------------------------------------------*/
-
-#include <stddef.h>
-
-#include <mLib/bits.h>
-
-/*----- Magic numbers -----------------------------------------------------*/
-
-#define SERPENT_BLKSZ 16
-#define SERPENT_KEYSZ 32
-#define SERPENT_CLASS (N, L, 128)
-
-extern const octet serpent_keysz[];
-
-/*----- Data structures ---------------------------------------------------*/
-
-typedef struct serpent_ctx {
-  uint32 k[4 * 33];
-} serpent_ctx;
-
-/*----- Functions provided ------------------------------------------------*/
-
-/* --- @serpent_init@ --- *
- *
- * Arguments:  @serpent_ctx *k@ = pointer to context block to initialize
- *             @const void *buf@ = pointer to input buffer
- *             @size_t sz@ = size of input buffer
- *
- * Returns:    ---
- *
- * Use:                Initializes a Serpent context.  The key may be any length of
- *             up to 32 bytes (256 bits).
- */
-
-extern void serpent_init(serpent_ctx */*k*/,
-                        const void */*buf*/, size_t /*sz*/);
-
-/* --- @serpent_eblk@, @serpent_dblk@ --- *
- *
- * Arguments:  @const serpent_ctx *k@ = pointer to key context
- *             @const uint32 s[4]@ = pointer to source block
- *             @uint32 d[4]@ = pointer to destination block
- *
- * Returns:    ---
- *
- * Use:                Low-level block encryption.
- */
-
-extern void serpent_eblk(const serpent_ctx */*k*/,
-                        const uint32 */*s*/, uint32 */*d*/);
-extern void serpent_dblk(const serpent_ctx */*k*/,
-                        const uint32 */*s*/, uint32 */*d*/);
-
-/*----- That's all, folks -------------------------------------------------*/
-
-#ifdef __cplusplus
-  }
-#endif
-
-#endif