1 /* $FreeBSD: releng/5.3/sys/opencrypto/rijndael.h 104476 2002-10-04 20:31:23Z sam $ */
2 /* $OpenBSD: rijndael.h,v 1.7 2001/12/19 17:42:24 markus Exp $ */
3
4 /**
5 * rijndael-alg-fst.h
6 *
7 * @version 3.0 (December 2000)
8 *
9 * Optimised ANSI C code for the Rijndael cipher (now AES)
10 *
11 * @author Vincent Rijmen <vincent.rijmen@esat.kuleuven.ac.be>
12 * @author Antoon Bosselaers <antoon.bosselaers@esat.kuleuven.ac.be>
13 * @author Paulo Barreto <paulo.barreto@terra.com.br>
14 *
15 * This code is hereby placed in the public domain.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ''AS IS'' AND ANY EXPRESS
18 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE
21 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
24 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
25 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
26 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
27 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29 #ifndef __RIJNDAEL_H
30 #define __RIJNDAEL_H
31
32 #define MAXKC (256/32)
33 #define MAXKB (256/8)
34 #define MAXNR 14
35
36 typedef unsigned char u8;
37 typedef unsigned short u16;
38 typedef unsigned int u32;
39
40 /* The structure for key information */
41 typedef struct {
42 int decrypt;
43 int Nr; /* key-length-dependent number of rounds */
44 u32 ek[4*(MAXNR + 1)]; /* encrypt key schedule */
45 u32 dk[4*(MAXNR + 1)]; /* decrypt key schedule */
46 } rijndael_ctx;
47
48 void rijndael_set_key(rijndael_ctx *, u_char *, int, int);
49 void rijndael_decrypt(rijndael_ctx *, u_char *, u_char *);
50 void rijndael_encrypt(rijndael_ctx *, u_char *, u_char *);
51
52 #endif /* __RIJNDAEL_H */
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