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beecrypt/blockmode.c

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00001 
00007 /*
00008  * Copyright (c) 2000 Virtual Unlimited B.V.
00009  *
00010  * Author: Bob Deblier <bob@virtualunlimited.com>
00011  *
00012  * This library is free software; you can redistribute it and/or
00013  * modify it under the terms of the GNU Lesser General Public
00014  * License as published by the Free Software Foundation; either
00015  * version 2.1 of the License, or (at your option) any later version.
00016  *
00017  * This library is distributed in the hope that it will be useful,
00018  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00019  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00020  * Lesser General Public License for more details.
00021  *
00022  * You should have received a copy of the GNU Lesser General Public
00023  * License along with this library; if not, write to the Free Software
00024  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00025  *
00026  */
00027 
00028 #include "system.h"
00029 #include "blockmode.h"
00030 #include "mp32.h"
00031 #include "debug.h"
00032 
00033 int blockEncrypt(const blockCipher* bc, blockCipherParam* bp, cipherMode mode, int blocks, uint32* dst, const uint32* src)
00034 {
00035         if (bc->mode)
00036         {
00037                 register const blockMode* bm = bc->mode+mode;
00038 
00039                 if (bm)
00040                 {
00041                         register const blockModeEncrypt be = bm->encrypt;
00042 
00043                         if (be)
00044                                 return be(bp, blocks, dst, src);
00045                 }
00046         }
00047 
00048         return -1;
00049 }
00050 
00051 int blockDecrypt(const blockCipher* bc, blockCipherParam* bp, cipherMode mode, int blocks, uint32* dst, const uint32* src)
00052 {
00053         if (bc->mode)
00054         {
00055                 register const blockMode* bm = bc->mode+mode;
00056 
00057                 if (bm)
00058                 {
00059                         register const blockModeEncrypt bd = bm->decrypt;
00060 
00061                         if (bd)
00062                                 return bd(bp, blocks, dst, src);
00063                 }
00064         }
00065 
00066         return -1;
00067 }

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