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airpdcap_rijndael.h

/**
 * airpdcap_rijndael.h
 *
 * $Id: airpdcap_rijndael.h 26035 2008-08-18 17:57:57Z gerald $
 *
 * @version 3.0 (December 2000)
 *
 * Optimised ANSI C code for the Rijndael cipher (now AES)
 *
 * @author Vincent Rijmen <vincent.rijmen@esat.kuleuven.ac.be>
 * @author Antoon Bosselaers <antoon.bosselaers@esat.kuleuven.ac.be>
 * @author Paulo Barreto <paulo.barreto@terra.com.br>
 *
 * This code is hereby placed in the public domain.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ''AS IS'' AND ANY EXPRESS
 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef     _AIRPDCAP_RIJNDAEL
#define     _AIRPDCAP_RIJNDAEL

/******************************************************************************/
/*    File includes                                                                                                                             */
/*                                                                                                                                                          */
#include "airpdcap_interop.h"
/*                                                                                                                                                          */
/*                                                                                                                                                          */
/******************************************************************************/

/******************************************************************************/
/*    Definitions                                                                                                                               */
/*                                                                                                                                                          */
/* Note: copied AirPDcap/rijndael/rijndael.h                                                                      */
#define RIJNDAEL_MAXKC  (256/32)
#define RIJNDAEL_MAXKB  (256/8)
#define RIJNDAEL_MAXNR  14
/*                                                                                                                                                          */
/******************************************************************************/

/******************************************************************************/
/*    Type definitions                                                                                                                    */
/*                                                                                                                                                          */
/* Note: copied AirPDcap/rijndael/rijndael.h                                                                      */
typedef struct s_rijndael_ctx {
      INT     Nr;             /* key-length-dependent number of rounds */
      UINT32 ek[4 * (RIJNDAEL_MAXNR + 1)];  /* encrypt key schedule */
      UINT32 dk[4 * (RIJNDAEL_MAXNR + 1)];  /* decrypt key schedule */
} rijndael_ctx;
/*                                                                                                                                                          */
/******************************************************************************/

/******************************************************************************/
/*    External function prototypes declarations                                                                   */
/*                                                                                                                                                          */
void rijndael_encrypt(
      const rijndael_ctx *ctx,
      const UCHAR *src,
      UCHAR *dst)
      ;


void rijndael_set_key(
      rijndael_ctx *ctx,
      const UCHAR *key,
      INT bits)
      ;

UCHAR AES_unwrap(UCHAR *kek, UINT16 key_len, UCHAR *cipher_text, UINT16 cipher_len, UCHAR *output);

/*                                                                                                                                                          */
/******************************************************************************/

/******************************************************************************/
/*    Block XOR macro definition                                                                                              */
/*                                                                                                                                                          */
#define XOR_BLOCK(b, a, len) \
      {                                   \
            INT i;                              \
            for (i = 0; i < (INT)(len); i++)    \
                  (b)[i] ^= (a)[i];       \
      }
/*                                                                                                                                                          */
/******************************************************************************/

#endif

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