AppleCSP/AES/rijndael-alg-ref.h

   1 /*
   2  * Copyright (c) 2000-2001 Apple Computer, Inc. All Rights Reserved.
   3  *
   4  * The contents of this file constitute Original Code as defined in and are
   5  * subject to the Apple Public Source License Version 1.2 (the 'License').
   6  * You may not use this file except in compliance with the License. Please obtain
   7  * a copy of the License at http://www.apple.com/publicsource and read it before
   8  * using this file.
   9  *
  10  * This Original Code and all software distributed under the License are
  11  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS
  12  * OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, INCLUDING WITHOUT
  13  * LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
  14  * PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. Please see the License for the
  15  * specific language governing rights and limitations under the License.
  16  */
  17
  18
  19 /* rijndael-alg-ref.h   v2.0   August '99
  20  * Reference ANSI C code
  21  * authors: Paulo Barreto
  22  *          Vincent Rijmen
  23  */
  24 #ifndef __RIJNDAEL_ALG_H
  25 #define __RIJNDAEL_ALG_H
  26
  27 #ifdef  __APPLE__
  28 #define MIN_AES_KEY_BITS                128
  29 #define MID_AES_KEY_BITS                192
  30 #define MAX_AES_KEY_BITS                256
  31
  32 #define MIN_AES_BLOCK_BITS              128
  33 #define MID_AES_BLOCK_BITS              192
  34 #define MAX_AES_BLOCK_BITS              256
  35 #endif
  36 #define MAXBC                           (MAX_AES_BLOCK_BITS/32)
  37 #define MAXKC                           (MAX_AES_KEY_BITS/32)
  38 #define MAXROUNDS                       14
  39
  40 #ifdef  __cplusplus
  41 extern "C" {
  42 #endif
  43
  44 typedef unsigned char           word8;
  45 typedef unsigned short          word16;
  46 typedef unsigned long           word32;
  47
  48
  49 int rijndaelKeySched (word8 k[4][MAXKC], int keyBits, int blockBits,
  50                 word8 rk[MAXROUNDS+1][4][MAXBC]);
  51 int rijndaelEncrypt (word8 a[4][MAXBC], int keyBits, int blockBits,
  52                 word8 rk[MAXROUNDS+1][4][MAXBC]);
  53 #ifndef __APPLE__
  54 int rijndaelEncryptRound (word8 a[4][MAXBC], int keyBits, int blockBits,
  55                 word8 rk[MAXROUNDS+1][4][MAXBC], int rounds);
  56 #endif
  57 int rijndaelDecrypt (word8 a[4][MAXBC], int keyBits, int blockBits,
  58                 word8 rk[MAXROUNDS+1][4][MAXBC]);
  59 #ifndef __APPLE__
  60 int rijndaelDecryptRound (word8 a[4][MAXBC], int keyBits, int blockBits,
  61                 word8 rk[MAXROUNDS+1][4][MAXBC], int rounds);
  62 #endif
  63
  64 /*
  65  * Optimized routines for 128-bit block and key.
  66  */
  67 #define ROUNDS_128_OPT  10
  68 #define BC_128_OPT              4
  69 #define KC_128_OPT              4
  70
  71 /*
  72  * These require 32-bit word-aligned a, k, and rk arrays
  73  */
  74 int rijndaelKeySched128 (word8 k[4][KC_128_OPT],
  75         word8 rk[MAXROUNDS+1][4][MAXBC]);
  76 int rijndaelEncrypt128 (word8 a[4][BC_128_OPT],
  77         word8 rk[MAXROUNDS+1][4][MAXBC]);
  78 int rijndaelDecrypt128 (word8 a[4][BC_128_OPT],
  79         word8 rk[MAXROUNDS+1][4][MAXBC]);
  80
  81 #ifdef  __cplusplus
  82 }
  83 #endif
  84
  85 #endif /* __RIJNDAEL_ALG_H */