1/*	$OpenBSD: rijndael.h,v 1.12 2001/12/19 07:18:56 deraadt Exp $ */
2
3/**
4 * rijndael-alg-fst.h
5 *
6 * @version 3.0 (December 2000)
7 *
8 * Optimised ANSI C code for the Rijndael cipher (now AES)
9 *
10 * @author Vincent Rijmen <vincent.rijmen@esat.kuleuven.ac.be>
11 * @author Antoon Bosselaers <antoon.bosselaers@esat.kuleuven.ac.be>
12 * @author Paulo Barreto <paulo.barreto@terra.com.br>
13 *
14 * This code is hereby placed in the public domain.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ''AS IS'' AND ANY EXPRESS
17 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
23 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
24 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
25 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
26 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28#ifndef __RIJNDAEL_H
29#define __RIJNDAEL_H
30
31#define MAXKC	(256/32)
32#define MAXKB	(256/8)
33#define MAXNR	14
34
35typedef unsigned char	u8;
36typedef unsigned short	u16;
37typedef unsigned int	u32;
38
39/*  The structure for key information */
40typedef struct {
41	int	decrypt;
42	int	Nr;			/* key-length-dependent number of rounds */
43	u32	ek[4*(MAXNR + 1)];	/* encrypt key schedule */
44	u32	dk[4*(MAXNR + 1)];	/* decrypt key schedule */
45} rijndael_ctx;
46
47void	 rijndael_set_key(rijndael_ctx *, u_char *, int, int);
48void	 rijndael_decrypt(rijndael_ctx *, u_char *, u_char *);
49void	 rijndael_encrypt(rijndael_ctx *, u_char *, u_char *);
50
51#endif /* __RIJNDAEL_H */
52