wsutil/aes.h

   1 /**
   2  * aes.h
   3  *
   4  * Copied from airpdcap_rijndael.h
   5  *
   6  * $Id$
   7  *
   8  * @version 3.0 (December 2000)
   9  *
  10  * Optimised ANSI C code for the Rijndael cipher (now AES)
  11  *
  12  * @author Vincent Rijmen <vincent.rijmen@esat.kuleuven.ac.be>
  13  * @author Antoon Bosselaers <antoon.bosselaers@esat.kuleuven.ac.be>
  14  * @author Paulo Barreto <paulo.barreto@terra.com.br>
  15  *
  16  * This code is hereby placed in the public domain.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ''AS IS'' AND ANY EXPRESS
  19  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  20  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  21  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE
  22  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  23  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  24  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
  25  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  26  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
  27  * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
  28  * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  29  */
  30
  31 /* Note: copied AirPDcap/rijndael/rijndael.h */
  32
  33 #ifndef _AES
  34 #define _AES
  35
  36 #include "ws_symbol_export.h"
  37
  38 #define RIJNDAEL_MAXKC  (256/32)
  39 #define RIJNDAEL_MAXKB  (256/8)
  40 #define RIJNDAEL_MAXNR  14
  41
  42 typedef struct s_rijndael_ctx {
  43         gint     Nr;             /* key-length-dependent number of rounds */
  44         guint32  ek[4 * (RIJNDAEL_MAXNR + 1)];  /* encrypt key schedule */
  45         guint32  dk[4 * (RIJNDAEL_MAXNR + 1)];  /* decrypt key schedule */
  46 } rijndael_ctx;
  47
  48
  49 WS_DLL_PUBLIC
  50 void rijndael_set_key(
  51         rijndael_ctx *ctx,
  52         const guchar *key,
  53         gint bits);
  54
  55 WS_DLL_PUBLIC
  56 void rijndael_encrypt(
  57         const rijndael_ctx *ctx,
  58         const guchar *src,
  59         guchar *dst);
  60
  61 WS_DLL_PUBLIC
  62 void rijndael_decrypt(
  63         const rijndael_ctx *ctx,
  64         const guchar *src,
  65         guchar *dst);
  66
  67
  68 #endif