/* * Copyright (c) 2002 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * The contents of this file constitute Original Code as defined in and * are subject to the Apple Public Source License Version 1.1 (the * "License"). You may not use this file except in compliance with the * License. Please obtain a copy of the License at * http://www.apple.com/publicsource and read it before using this file. * * This Original Code and all software distributed under the License are * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the * License for the specific language governing rights and limitations * under the License. * * @APPLE_LICENSE_HEADER_END@ */ // mdc.h - written and placed in the public domain by Wei Dai #ifndef CRYPTOPP_MDC_H #define CRYPTOPP_MDC_H /** \file */ #include "cryptopp.h" #include "cryptopp_misc.h" NAMESPACE_BEGIN(CryptoPP) /// <a href="http://www.weidai.com/scan-mirror/cs.html#MDC">MDC</a> template <class T> class MDC : public FixedBlockSize<T::DIGESTSIZE>, public FixedKeyLength<T::BLOCKSIZE> { public: MDC(const byte *userKey, unsigned int = 0) : key(KEYLENGTH/4) { T::CorrectEndianess(key, (word32 *)userKey, KEYLENGTH); } void ProcessBlock(byte *inoutBlock) const { T::CorrectEndianess((word32 *)inoutBlock, (word32 *)inoutBlock, BLOCKSIZE); T::Transform((word32 *)inoutBlock, key); T::CorrectEndianess((word32 *)inoutBlock, (word32 *)inoutBlock, BLOCKSIZE); } void ProcessBlock(const byte *inBlock, byte *outBlock) const { T::CorrectEndianess((word32 *)outBlock, (word32 *)inBlock, BLOCKSIZE); T::Transform((word32 *)outBlock, key); T::CorrectEndianess((word32 *)outBlock, (word32 *)outBlock, BLOCKSIZE); } private: SecBlock<word32> key; }; NAMESPACE_END #endif