lib/rijndael-alg-fst.h

   1 /* rijndael-alg-fst.h --- Rijndael cipher implementation.
   2  * Copyright (C) 2005, 2009-2024 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
   6  * published by the Free Software Foundation; either version 2.1 of the
   7  * License, or (at your option) any later version.
   8  *
   9  * This file is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU Lesser 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 program.  If not, see <https://www.gnu.org/licenses/>.
  16  *
  17  */
  18
  19 /* Adapted for gnulib by Simon Josefsson. */
  20
  21 /**
  22  * rijndael-alg-fst.h
  23  *
  24  * @version 3.0 (December 2000)
  25  *
  26  * Optimised ANSI C code for the Rijndael cipher (now AES)
  27  *
  28  * @author Vincent Rijmen <vincent.rijmen@esat.kuleuven.ac.be>
  29  * @author Antoon Bosselaers <antoon.bosselaers@esat.kuleuven.ac.be>
  30  * @author Paulo Barreto <paulo.barreto@terra.com.br>
  31  *
  32  * This code is hereby placed in the public domain.
  33  *
  34  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ''AS IS'' AND ANY EXPRESS
  35  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  36  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  37  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE
  38  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  39  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  40  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
  41  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  42  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
  43  * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
  44  * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  45  */
  46 #ifndef __RIJNDAEL_ALG_FST_H
  47 #define __RIJNDAEL_ALG_FST_H
  48
  49 #include <stdint.h>
  50 #include <stddef.h>
  51
  52 #define RIJNDAEL_MAXKC (256/32)
  53 #define RIJNDAEL_MAXKB (256/8)
  54 #define RIJNDAEL_MAXNR 14
  55
  56 int rijndaelKeySetupEnc (uint32_t rk[ /*4*(Nr + 1) */ ],
  57                          const char cipherKey[], size_t keyBits);
  58 int rijndaelKeySetupDec (uint32_t rk[ /*4*(Nr + 1) */ ],
  59                          const char cipherKey[], size_t keyBits);
  60 void rijndaelEncrypt (const uint32_t rk[ /*4*(Nr + 1) */ ], size_t Nr,
  61                       const char pt[16], char ct[16]);
  62 void rijndaelDecrypt (const uint32_t rk[ /*4*(Nr + 1) */ ], size_t Nr,
  63                       const char ct[16], char pt[16]);
  64
  65 #endif /* __RIJNDAEL_ALG_FST_H */