lgl/rijndael-alg-fst.h

   1 /* rijndael-alg-fst.h --- Rijndael cipher implementation.
   2  * Copyright (C) 2005 Free Software Foundation, Inc.
   3  *
   4  * This file is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU Lesser General Public License as published
   6  * by the Free Software Foundation; either version 2.1, or (at your
   7  * option) any later version.
   8  *
   9  * This file is distributed in the hope that it will be useful, but
  10  * WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public License
  15  * along with this file; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  17  * 02110-1301, USA.
  18  *
  19  */
  20
  21 /* Adapted for gnulib by Simon Josefsson. */
  22
  23 /**
  24  * rijndael-alg-fst.h
  25  *
  26  * @version 3.0 (December 2000)
  27  *
  28  * Optimised ANSI C code for the Rijndael cipher (now AES)
  29  *
  30  * @author Vincent Rijmen <vincent.rijmen@esat.kuleuven.ac.be>
  31  * @author Antoon Bosselaers <antoon.bosselaers@esat.kuleuven.ac.be>
  32  * @author Paulo Barreto <paulo.barreto@terra.com.br>
  33  *
  34  * This code is hereby placed in the public domain.
  35  *
  36  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ''AS IS'' AND ANY EXPRESS
  37  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  38  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  39  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE
  40  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  41  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  42  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
  43  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  44  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
  45  * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
  46  * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  47  */
  48 #ifndef __RIJNDAEL_ALG_FST_H
  49 #define __RIJNDAEL_ALG_FST_H
  50
  51 #include <stdint.h>
  52 #include <stddef.h>
  53
  54 #define RIJNDAEL_MAXKC (256/32)
  55 #define RIJNDAEL_MAXKB (256/8)
  56 #define RIJNDAEL_MAXNR 14
  57
  58 int rijndaelKeySetupEnc (uint32_t rk[ /*4*(Nr + 1) */ ],
  59                          const char cipherKey[], size_t keyBits);
  60 int rijndaelKeySetupDec (uint32_t rk[ /*4*(Nr + 1) */ ],
  61                          const char cipherKey[], size_t keyBits);
  62 void rijndaelEncrypt (const uint32_t rk[ /*4*(Nr + 1) */ ], size_t Nr,
  63                       const char pt[16], char ct[16]);
  64 void rijndaelDecrypt (const uint32_t rk[ /*4*(Nr + 1) */ ], size_t Nr,
  65                       const char ct[16], char pt[16]);
  66
  67 #endif /* __RIJNDAEL_ALG_FST_H */