git.distorted.org.uk Git - u/mdw/catacomb/blob - rijndael256.h

   1 /* -*-c-*-
   2  *
   3  * $Id: rijndael256.h,v 1.1 2001/05/07 17:32:03 mdw Exp $
   4  *
   5  * The Rijndael block cipher, 256-bit version
   6  *
   7  * (c) 2001 Straylight/Edgeware
   8  */
   9
  10 /*----- Licensing notice --------------------------------------------------*
  11  *
  12  * This file is part of Catacomb.
  13  *
  14  * Catacomb is free software; you can redistribute it and/or modify
  15  * it under the terms of the GNU Library General Public License as
  16  * published by the Free Software Foundation; either version 2 of the
  17  * License, or (at your option) any later version.
  18  *
  19  * Catacomb is distributed in the hope that it will be useful,
  20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22  * GNU Library General Public License for more details.
  23  *
  24  * You should have received a copy of the GNU Library General Public
  25  * License along with Catacomb; if not, write to the Free
  26  * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
  27  * MA 02111-1307, USA.
  28  */
  29
  30 /*----- Revision history --------------------------------------------------*
  31  *
  32  * $Log: rijndael256.h,v $
  33  * Revision 1.1  2001/05/07 17:32:03  mdw
  34  * New Rijndael block sizes.
  35  *
  36  */
  37
  38 #ifndef CATACOMB_RIJNDAEL256_H
  39 #define CATACOMB_RIJNDAEL256_H
  40
  41 #ifdef __cplusplus
  42   extern "C" {
  43 #endif
  44
  45 /*----- Header files ------------------------------------------------------*/
  46
  47 #ifndef CATACOMB_RIJNDAEL_H
  48 #  include "rijndael.h"
  49 #endif
  50
  51 /*----- Magical numbers ---------------------------------------------------*/
  52
  53 #define RIJNDAEL256_BLKSZ 32
  54 #define RIJNDAEL256_KEYSZ 32
  55 #define RIJNDAEL256_CLASS (N, L, 256)
  56
  57 #define rijndael256_keysz rijndael_keysz
  58
  59 /*----- Data structures ---------------------------------------------------*/
  60
  61 typedef struct rijndael_ctx rijndael256_ctx;
  62
  63 /*----- Functions provided ------------------------------------------------*/
  64
  65 /* --- @rijndael256_init@ --- *
  66  *
  67  * Arguments:   @rijndael_ctx *k@ = pointer to context to initialize
  68  *              @const void *buf@ = pointer to buffer of key material
  69  *              @size_t sz@ = size of the key material
  70  *
  71  * Returns:     ---
  72  *
  73  * Use:         Initializes a Rijndael context with a particular key.  This
  74  *              implementation of Rijndael doesn't impose any particular
  75  *              limits on the key size except that it must be multiple of 4
  76  *              bytes long.  256 bits seems sensible, though.
  77  */
  78
  79 extern void rijndael256_init(rijndael_ctx */*k*/,
  80                           const void */*buf*/, size_t /*sz*/);
  81
  82 /* --- @rijndael_eblk@, @rijndael_dblk@ --- *
  83  *
  84  * Arguments:   @const rijndael_ctx *k@ = pointer to Rijndael context
  85  *              @const uint32 s[4]@ = pointer to source block
  86  *              @uint32 d[4]@ = pointer to destination block
  87  *
  88  * Returns:     ---
  89  *
  90  * Use:         Low-level block encryption and decryption.
  91  */
  92
  93 extern void rijndael256_eblk(const rijndael_ctx */*k*/,
  94                              const uint32 */*s*/, uint32 */*dst*/);
  95 extern void rijndael256_dblk(const rijndael_ctx */*k*/,
  96                              const uint32 */*s*/, uint32 */*dst*/);
  97
  98 /*----- That's all, folks -------------------------------------------------*/
  99
 100 #ifdef __cplusplus
 101   }
 102 #endif
 103
 104 #endif