1 /* $OpenBSD: rijndael.h,v 1.12 2001/12/19 07:18:56 deraadt 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 (at) esat.kuleuven.ac.be> 11 * @author Antoon Bosselaers <antoon.bosselaers (at) esat.kuleuven.ac.be> 12 * @author Paulo Barreto <paulo.barreto (at) 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 #ifndef __RIJNDAEL_H 29 #define __RIJNDAEL_H 30 31 #define MAXKC (256/32) 32 #define MAXKB (256/8) 33 #define MAXNR 14 34 35 typedef unsigned char u8; 36 typedef unsigned short u16; 37 typedef unsigned int u32; 38 39 /* The structure for key information */ 40 typedef struct { 41 int decrypt; 42 int Nr; /* key-length-dependent number of rounds */ 43 u32 ek[4*(MAXNR + 1)]; /* encrypt key schedule */ 44 u32 dk[4*(MAXNR + 1)]; /* decrypt key schedule */ 45 } rijndael_ctx; 46 47 void rijndael_set_key(rijndael_ctx *, u_char *, int, int); 48 void rijndael_decrypt(rijndael_ctx *, u_char *, u_char *); 49 void rijndael_encrypt(rijndael_ctx *, u_char *, u_char *); 50 51 #endif /* __RIJNDAEL_H */ 52
