sys/crypto/rijndael/rijndael-api.c

   1 /*      $FreeBSD: src/sys/crypto/rijndael/rijndael-api.c,v 1.2 2008/01/15 18:34:47 sobomax Exp $        */
   2 /*      $KAME: rijndael.c,v 1.3 2003/08/28 14:20:22 itojun Exp $        */
   3
   4 /*
   5  * rijndael-alg-fst.c
   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
  30 #include <sys/types.h>
  31 #ifdef _KERNEL
  32 #include <sys/systm.h>
  33 #endif
  34
  35 #include <crypto/rijndael/rijndael.h>
  36
  37 void
  38 rijndael_set_key(rijndael_ctx *ctx, const u_char *key, int bits)
  39 {
  40
  41         ctx->Nr = rijndaelKeySetupEnc(ctx->ek, key, bits);
  42         rijndaelKeySetupDec(ctx->dk, key, bits);
  43 }
  44
  45 void
  46 rijndael_decrypt(const rijndael_ctx *ctx, const u_char *src, u_char *dst)
  47 {
  48
  49         rijndaelDecrypt(ctx->dk, ctx->Nr, src, dst);
  50 }
  51
  52 void
  53 rijndael_encrypt(const rijndael_ctx *ctx, const u_char *src, u_char *dst)
  54 {
  55
  56         rijndaelEncrypt(ctx->ek, ctx->Nr, src, dst);
  57 }