3 * $Id: noekeon.h,v 1.2 2004/04/08 01:36:15 mdw Exp $
5 * The Noekeon block cipher
7 * (c) 2000 Straylight/Edgeware
10 /*----- Licensing notice --------------------------------------------------*
12 * This file is part of Catacomb.
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.
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.
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,
30 /*----- Notes on the Noekeon block cipher --------------------------------*
32 * A Nessie entry, by Joan Daemen, Michael Peeters, Gilles Van Assche and
33 * Vincent Rijmen, two of whom were the designers of the AES winner
34 * Rijndael. It's a simple cipher, based on Serpent-style bit-slicing.
35 * Speed is about middle-of-the-road -- about as fast as SAFER, faster than
39 #ifndef CATACOMB_NOEKEON_H
40 #define CATACOMB_NOEKEON_H
46 /*----- Header files ------------------------------------------------------*/
50 #include <mLib/bits.h>
52 /*----- Magical numbers ---------------------------------------------------*/
54 #define NOEKEON_BLKSZ 16
55 #define NOEKEON_KEYSZ 16
56 #define NOEKEON_CLASS (N, B, 128)
58 extern const octet noekeon_keysz
[];
60 /*----- Data structures ---------------------------------------------------*/
62 typedef struct noekeon_ctx
{
66 /*----- Functions provided ------------------------------------------------*/
68 /* --- @noekeon_init@ --- *
70 * Arguments: @noekeon_ctx *k@ = pointer to context to initialize
71 * @const void *buf@ = pointer to buffer of key material
72 * @size_t sz@ = size of the key material
76 * Use: Initializes a Noekeon context with a particular key. This
77 * uses indirect keying. The key must be 128 bits long.
80 extern void noekeon_init(noekeon_ctx */
*k*/
,
81 const void */
*buf*/
, size_t /*sz*/);
83 /* --- @noekeon_eblk@, @noekeon_dblk@ --- *
85 * Arguments: @const noekeon_ctx *k@ = pointer to Noekeon context
86 * @const uint32 s[4]@ = pointer to source block
87 * @uint32 d[4]@ = pointer to destination block
91 * Use: Low-level block encryption and decryption.
94 extern void noekeon_eblk(const noekeon_ctx */
*k*/
,
95 const uint32 */
*s*/
, uint32 */
*dst*/
);
96 extern void noekeon_dblk(const noekeon_ctx */
*k*/
,
97 const uint32 */
*s*/
, uint32 */
*dst*/
);
99 /*----- That's all, folks -------------------------------------------------*/