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/* $KAME: rijndael.h,v 1.6 2003/08/28 08:36:32 itojun Exp $ */
/* $FreeBSD: release/9.1.0/sys/crypto/rijndael/rijndael.h 143431 2005-03-11 22:07:04Z ume $ */
/**
* rijndael-alg-fst.h
*
* @version 3.0 (December 2000)
*
* Optimised ANSI C code for the Rijndael cipher (now AES)
*
* @author Vincent Rijmen <vincent.rijmen@esat.kuleuven.ac.be>
* @author Antoon Bosselaers <antoon.bosselaers@esat.kuleuven.ac.be>
* @author Paulo Barreto <paulo.barreto@terra.com.br>
*
* This code is hereby placed in the public domain.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS ''AS IS'' AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __RIJNDAEL_H
#define __RIJNDAEL_H
#define RIJNDAEL_MAXKC (256/32)
#define RIJNDAEL_MAXKB (256/8)
#define RIJNDAEL_MAXNR 14
typedef struct {
int decrypt;
int Nr; /* key-length-dependent number of rounds */
uint32_t ek[4 * (RIJNDAEL_MAXNR + 1)]; /* encrypt key schedule */
uint32_t dk[4 * (RIJNDAEL_MAXNR + 1)]; /* decrypt key schedule */
} rijndael_ctx;
void rijndael_set_key(rijndael_ctx *, const u_char *, int);
void rijndael_decrypt(const rijndael_ctx *, const u_char *, u_char *);
void rijndael_encrypt(const rijndael_ctx *, const u_char *, u_char *);
int rijndaelKeySetupEnc(u_int32_t [/*4*(Nr+1)*/], const u_int8_t [], int);
int rijndaelKeySetupDec(u_int32_t [/*4*(Nr+1)*/], const u_int8_t [], int);
void rijndaelEncrypt(const u_int32_t [/*4*(Nr+1)*/], int,
const u_int8_t[16], u_int8_t [16]);
void rijndaelDecrypt(const u_int32_t [/*4*(Nr+1)*/], int,
const u_int8_t [16], u_int8_t [16]);
#endif /* __RIJNDAEL_H */