sys/crypto/rijndael/rijndael.c

   1 /*      $NetBSD: rijndael.c,v 1.6.4.4 2005/03/04 16:40:52 skrll Exp $   */
   2
   3 /**
   4  * rijndael-alg-fst.c
   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 #include <sys/cdefs.h>
  30 __KERNEL_RCSID(0, "$NetBSD: rijndael.c,v 1.6.4.4 2005/03/04 16:40:52 skrll Exp $");
  31
  32 #include <sys/types.h>
  33 #include <sys/systm.h>
  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 }