sys/crypto/rijndael/rijndael.h

   1 /*      $KAME: rijndael.h,v 1.6 2003/08/28 08:36:32 itojun 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
  29 #ifndef __RIJNDAEL_H
  30 #define __RIJNDAEL_H
  31
  32 #define RIJNDAEL_MAXKC  (256/32)
  33 #define RIJNDAEL_MAXKB  (256/8)
  34 #define RIJNDAEL_MAXNR  14
  35
  36 typedef struct {
  37         int     decrypt;
  38         int     Nr;             /* key-length-dependent number of rounds */
  39         uint32_t ek[4 * (RIJNDAEL_MAXNR + 1)];  /* encrypt key schedule */
  40         uint32_t dk[4 * (RIJNDAEL_MAXNR + 1)];  /* decrypt key schedule */
  41 } rijndael_ctx;
  42
  43 void    rijndael_set_key(rijndael_ctx *, const u_char *, int);
  44 void    rijndael_decrypt(const rijndael_ctx *, const u_char *, u_char *);
  45 void    rijndael_encrypt(const rijndael_ctx *, const u_char *, u_char *);
  46
  47 int     rijndaelKeySetupEnc(uint32_t [/*4*(Nr+1)*/], const uint8_t [], int);
  48 int     rijndaelKeySetupDec(uint32_t [/*4*(Nr+1)*/], const uint8_t [], int);
  49 void    rijndaelEncrypt(const uint32_t [/*4*(Nr+1)*/], int,
  50         const uint8_t[16], uint8_t [16]);
  51 void    rijndaelDecrypt(const uint32_t [/*4*(Nr+1)*/], int,
  52         const uint8_t [16], uint8_t [16]);
  53
  54 #endif /* __RIJNDAEL_H */