rijndael.h revision 76259 
1/*	$OpenBSD: rijndael.h,v 1.7 2001/03/01 03:38:33 deraadt Exp $	*/
2
3/* This is an independent implementation of the encryption algorithm:   */
4/*                                                                      */
5/*         RIJNDAEL by Joan Daemen and Vincent Rijmen                   */
6/*                                                                      */
7/* which is a candidate algorithm in the Advanced Encryption Standard   */
8/* programme of the US National Institute of Standards and Technology.  */
9/*                                                                      */
10/* Copyright in this implementation is held by Dr B R Gladman but I     */
11/* hereby give permission for its free direct or derivative use subject */
12/* to acknowledgment of its origin and compliance with any conditions   */
13/* that the originators of the algorithm place on its exploitation.     */
14/*                                                                      */
15/* Dr Brian Gladman (gladman@seven77.demon.co.uk) 14th January 1999     */
16
17#ifndef _RIJNDAEL_H_
18#define _RIJNDAEL_H_
19
20/* 1. Standard types for AES cryptography source code               */
21
22typedef u_int8_t   u1byte; /* an 8 bit unsigned character type */
23typedef u_int16_t  u2byte; /* a 16 bit unsigned integer type   */
24typedef u_int32_t  u4byte; /* a 32 bit unsigned integer type   */
25
26typedef int8_t     s1byte; /* an 8 bit signed character type   */
27typedef int16_t    s2byte; /* a 16 bit signed integer type     */
28typedef int32_t    s4byte; /* a 32 bit signed integer type     */
29
30typedef struct _rijndael_ctx {
31	u4byte  k_len;
32	int decrypt;
33	u4byte  e_key[64];
34	u4byte  d_key[64];
35} rijndael_ctx;
36
37
38/* 2. Standard interface for AES cryptographic routines             */
39
40/* These are all based on 32 bit unsigned values and will therefore */
41/* require endian conversions for big-endian architectures          */
42
43rijndael_ctx *rijndael_set_key  __P((rijndael_ctx *, const u4byte *, u4byte, int));
44void rijndael_encrypt __P((rijndael_ctx *, const u4byte *, u4byte *));
45void rijndael_decrypt __P((rijndael_ctx *, const u4byte *, u4byte *));
46
47#endif /* _RIJNDAEL_H_ */
48