3 * $Id: storin.h,v 1.1 2000/05/21 11:28:30 mdw Exp $
5 * Block cipher optimized for DSPs
7 * (c) 2000 Mark Wooding
10 /*----- Licensing notice --------------------------------------------------*
12 * Copyright (c) 2000 Mark Wooding
13 * All rights reserved.
15 * Redistribution and use in source and binary forms, with or without
16 * modification, are permitted provided that the following conditions are
19 * 1. Redistributions of source code must retain the above copyright
20 * notice, this list of conditions and the following disclaimer.
22 * 2, Redistributions in binary form must reproduce the above copyright
23 * notice, this list of conditions and the following disclaimer in the
24 * documentation and/or other materials provided with the distribution.
26 * 3. The name of the authors may not be used to endorse or promote
27 * products derived from this software without specific prior written
30 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
31 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
32 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
33 * NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
34 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
35 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
36 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
37 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
38 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
39 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
40 * POSSIBILITY OF SUCH DAMAGE.
42 * Instead of accepting the above terms, you may redistribute and/or modify
43 * this software under the terms of either the GNU General Public License,
44 * or the GNU Library General Public License, published by the Free
45 * Software Foundation; either version 2 of the License, or (at your
46 * option) any later version.
49 /*----- Revision history --------------------------------------------------*
52 * Revision 1.1 2000/05/21 11:28:30 mdw
64 /*----- Header files ------------------------------------------------------*/
70 /*----- Magic numbers -----------------------------------------------------*/
72 #define STORIN_BLKSZ 12
73 #define STORIN_KEYSZ 12
74 #define STORIN_CLASS (N, L, 96)
76 #define STORIN_ROUNDS 8
78 /*----- Data structures ---------------------------------------------------*/
80 typedef struct storin_ctx
{
81 uint24 k
[4 * (STORIN_ROUNDS
+ 1)];
84 /*----- Functions provided ------------------------------------------------*/
86 /* --- @storin_init24@ --- *
88 * Arguments: @storin_ctx *k@ = pointer to cipher context to initialize
89 * @const uint24 *buf@ = pointer to buffer of key material
90 * @size_t sz@ = size of the key material
94 * Use: Initializes the cipher for use.
97 extern void storin_init24(storin_ctx */
*k*/
,
98 const uint24 */
*buf*/
, size_t /*sz*/);
100 /* --- @storin_eblk24@, @storin_dblk24@ --- *
102 * Arguments: @const storin_ctx *k@ = pointer to cipher context
103 * @const uint24 s[4]@ = pointer to source block
104 * @uint24 d[4]@ = pointer to destination block
108 * Use: Low-level block encryption and decryption.
111 extern void storin_eblk24(const storin_ctx */
*k*/
,
112 const uint24 */
*s*/
, uint24 */
*d*/
);
113 extern void storin_dblk24(const storin_ctx */
*k*/
,
114 const uint24 */
*s*/
, uint24 */
*d*/
);
116 /*----- That's all, folks -------------------------------------------------*/