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