1 /* $KAME: rijndael.h,v 1.6 2003/08/28 08:36:32 itojun Exp $ */ 2 /* $FreeBSD$ */ 3 4 /** 5 * rijndael-alg-fst.h 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 #ifndef __RIJNDAEL_H 31 #define __RIJNDAEL_H 32 33 #define RIJNDAEL_MAXKC (256/32) 34 #define RIJNDAEL_MAXKB (256/8) 35 #define RIJNDAEL_MAXNR 14 36 37 typedef struct { 38 int decrypt; 39 int Nr; /* key-length-dependent number of rounds */ 40 uint32_t ek[4 * (RIJNDAEL_MAXNR + 1)]; /* encrypt key schedule */ 41 uint32_t dk[4 * (RIJNDAEL_MAXNR + 1)]; /* decrypt key schedule */ 42 } rijndael_ctx; 43 44 void rijndael_set_key(rijndael_ctx *, const u_char *, int); 45 void rijndael_decrypt(const rijndael_ctx *, const u_char *, u_char *); 46 void rijndael_encrypt(const rijndael_ctx *, const u_char *, u_char *); 47 48 int rijndaelKeySetupEnc(u_int32_t [/*4*(Nr+1)*/], const u_int8_t [], int); 49 int rijndaelKeySetupDec(u_int32_t [/*4*(Nr+1)*/], const u_int8_t [], int); 50 void rijndaelEncrypt(const u_int32_t [/*4*(Nr+1)*/], int, 51 const u_int8_t[16], u_int8_t [16]); 52 void rijndaelDecrypt(const u_int32_t [/*4*(Nr+1)*/], int, 53 const u_int8_t [16], u_int8_t [16]); 54 55 #endif /* __RIJNDAEL_H */ 56