mirror of
https://github.com/pocoproject/poco.git
synced 2025-11-04 04:09:57 +01:00
118 lines
3.7 KiB
C++
118 lines
3.7 KiB
C++
//
|
|
// MD5Engine.h
|
|
//
|
|
// $Id: //poco/1.4/Foundation/include/Poco/MD5Engine.h#1 $
|
|
//
|
|
// Library: Foundation
|
|
// Package: Crypt
|
|
// Module: MD5Engine
|
|
//
|
|
// Definition of class MD5Engine.
|
|
//
|
|
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
|
|
// and Contributors.
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person or organization
|
|
// obtaining a copy of the software and accompanying documentation covered by
|
|
// this license (the "Software") to use, reproduce, display, distribute,
|
|
// execute, and transmit the Software, and to prepare derivative works of the
|
|
// Software, and to permit third-parties to whom the Software is furnished to
|
|
// do so, all subject to the following:
|
|
//
|
|
// The copyright notices in the Software and this entire statement, including
|
|
// the above license grant, this restriction and the following disclaimer,
|
|
// must be included in all copies of the Software, in whole or in part, and
|
|
// all derivative works of the Software, unless such copies or derivative
|
|
// works are solely in the form of machine-executable object code generated by
|
|
// a source language processor.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
|
|
// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
|
|
// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
|
|
// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
|
// DEALINGS IN THE SOFTWARE.
|
|
//
|
|
//
|
|
// MD5 (RFC 1321) algorithm:
|
|
// Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All
|
|
// rights reserved.
|
|
//
|
|
// License to copy and use this software is granted provided that it
|
|
// is identified as the "RSA Data Security, Inc. MD5 Message-Digest
|
|
// Algorithm" in all material mentioning or referencing this software
|
|
// or this function.
|
|
//
|
|
// License is also granted to make and use derivative works provided
|
|
// that such works are identified as "derived from the RSA Data
|
|
// Security, Inc. MD5 Message-Digest Algorithm" in all material
|
|
// mentioning or referencing the derived work.
|
|
//
|
|
// RSA Data Security, Inc. makes no representations concerning either
|
|
// the merchantability of this software or the suitability of this
|
|
// software for any particular purpose. It is provided "as is"
|
|
// without express or implied warranty of any kind.
|
|
//
|
|
// These notices must be retained in any copies of any part of this
|
|
// documentation and/or software.
|
|
//
|
|
|
|
|
|
#ifndef Foundation_MD5Engine_INCLUDED
|
|
#define Foundation_MD5Engine_INCLUDED
|
|
|
|
|
|
#include "Poco/Foundation.h"
|
|
#include "Poco/DigestEngine.h"
|
|
|
|
|
|
namespace Poco {
|
|
|
|
|
|
class Foundation_API MD5Engine: public DigestEngine
|
|
/// This class implementes the MD5 message digest algorithm,
|
|
/// described in RFC 1321.
|
|
{
|
|
public:
|
|
enum
|
|
{
|
|
BLOCK_SIZE = 64,
|
|
DIGEST_SIZE = 16
|
|
};
|
|
|
|
MD5Engine();
|
|
~MD5Engine();
|
|
|
|
std::size_t digestLength() const;
|
|
void reset();
|
|
const DigestEngine::Digest& digest();
|
|
|
|
protected:
|
|
void updateImpl(const void* data, std::size_t length);
|
|
|
|
private:
|
|
static void transform(UInt32 state[4], const unsigned char block[64]);
|
|
static void encode(unsigned char* output, const UInt32* input, std::size_t len);
|
|
static void decode(UInt32* output, const unsigned char* input, std::size_t len);
|
|
|
|
struct Context
|
|
{
|
|
UInt32 state[4]; // state (ABCD)
|
|
UInt32 count[2]; // number of bits, modulo 2^64 (lsb first)
|
|
unsigned char buffer[64]; // input buffer
|
|
};
|
|
|
|
Context _context;
|
|
DigestEngine::Digest _digest;
|
|
|
|
MD5Engine(const MD5Engine&);
|
|
MD5Engine& operator = (const MD5Engine&);
|
|
};
|
|
|
|
|
|
} // namespace Poco
|
|
|
|
|
|
#endif // Foundation_MD5Engine_INCLUDED
|