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Ben Lindstromddb4f242001-05-10 23:26:11 +00001/* $OpenBSD: rijndael.h,v 1.8 2001/05/09 23:01:31 markus Exp $ */
Ben Lindstromb22c2b82001-03-05 06:50:47 +00002
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 */
Ben Lindstrom36579d32001-01-29 07:39:26 +000016
Ben Lindstromfa1b3d02000-12-10 01:55:37 +000017#ifndef _RIJNDAEL_H_
18#define _RIJNDAEL_H_
Damien Miller874d77b2000-10-14 16:23:11 +110019
Ben Lindstromfa1b3d02000-12-10 01:55:37 +000020#include "config.h"
Damien Miller59939352000-10-15 12:21:32 +110021
Ben Lindstromfa1b3d02000-12-10 01:55:37 +000022/* 1. Standard types for AES cryptography source code */
Damien Miller874d77b2000-10-14 16:23:11 +110023
Ben Lindstromfa1b3d02000-12-10 01:55:37 +000024typedef u_int8_t u1byte; /* an 8 bit unsigned character type */
25typedef u_int16_t u2byte; /* a 16 bit unsigned integer type */
26typedef u_int32_t u4byte; /* a 32 bit unsigned integer type */
Damien Miller874d77b2000-10-14 16:23:11 +110027
Ben Lindstromfa1b3d02000-12-10 01:55:37 +000028typedef int8_t s1byte; /* an 8 bit signed character type */
29typedef int16_t s2byte; /* a 16 bit signed integer type */
30typedef int32_t s4byte; /* a 32 bit signed integer type */
Damien Miller874d77b2000-10-14 16:23:11 +110031
Ben Lindstromfa1b3d02000-12-10 01:55:37 +000032typedef struct _rijndael_ctx {
33 u4byte k_len;
34 int decrypt;
35 u4byte e_key[64];
36 u4byte d_key[64];
37} rijndael_ctx;
Damien Miller874d77b2000-10-14 16:23:11 +110038
Ben Lindstromfa1b3d02000-12-10 01:55:37 +000039
40/* 2. Standard interface for AES cryptographic routines */
41
42/* These are all based on 32 bit unsigned values and will therefore */
43/* require endian conversions for big-endian architectures */
44
Ben Lindstromddb4f242001-05-10 23:26:11 +000045rijndael_ctx *
46rijndael_set_key __P((rijndael_ctx *, const u4byte *, const u4byte, int));
Ben Lindstromfa1b3d02000-12-10 01:55:37 +000047void rijndael_encrypt __P((rijndael_ctx *, const u4byte *, u4byte *));
48void rijndael_decrypt __P((rijndael_ctx *, const u4byte *, u4byte *));
49
50#endif /* _RIJNDAEL_H_ */