138 lines
3.9 KiB
C++
138 lines
3.9 KiB
C++
/*
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Copyright (C) 1999, 2002 Aladdin Enterprises. All rights reserved.
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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L. Peter Deutsch
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ghost@aladdin.com
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*/
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/* $Id: md5.h,v 1.4 2002/04/13 19:20:28 lpd Exp $ */
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/*
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Independent implementation of MD5 (RFC 1321).
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This code implements the MD5 Algorithm defined in RFC 1321, whose
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text is available at
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http://www.ietf.org/rfc/rfc1321.txt
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The code is derived from the text of the RFC, including the test suite
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(section A.5) but excluding the rest of Appendix A. It does not include
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any code or documentation that is identified in the RFC as being
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copyrighted.
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The original and principal author of md5.h is L. Peter Deutsch
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<ghost@aladdin.com>. Other authors are noted in the change history
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that follows (in reverse chronological order):
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2002-04-13 lpd Removed support for non-ANSI compilers; removed
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references to Ghostscript; clarified derivation from RFC 1321;
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now handles byte order either statically or dynamically.
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1999-11-04 lpd Edited comments slightly for automatic TOC extraction.
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1999-10-18 lpd Fixed typo in header comment (ansi2knr rather than md5);
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added conditionalization for C++ compilation from Martin
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Purschke <purschke@bnl.gov>.
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1999-05-03 lpd Original version.
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*/
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#ifndef MD5_H__
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#define MD5_H__
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#include "macros.h"
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#include <string>
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namespace gloox
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{
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/**
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* @brief An MD% implementation.
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*
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* This is an implementation of the Message Digest Algorithm as decribed in RFC 1321.
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* The original code has been taken from an implementation by L. Peter Deutsch.
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*
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* @author Jakob Schroeter <js@camaya.net>
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* @since 0.9
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*/
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class GLOOX_API MD5
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{
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public:
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/**
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* Constructs a new MD5 object.
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*/
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MD5();
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/**
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* Virtual Destructor.
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*/
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virtual ~MD5();
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/**
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* Use this function to feed the hash.
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* @param data The data to hash.
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* @param bytes The size of @c data in bytes.
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*/
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void feed( const unsigned char* data, int bytes );
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/**
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* Use this function to feed the hash.
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* @param data The data to hash.
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*/
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void feed( const std::string& data );
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/**
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* This function is used to finalize the hash operation. Use it after the last feed() and
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* before calling hex().
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*/
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void finalize();
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/**
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* Use this function to retrieve the hash value in hex.
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* @return The hash in hex notation.
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*/
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const std::string hex();
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/**
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* Use this function to retrieve the raw binary hash.
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* @return The raw binary hash.
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*/
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const std::string binary();
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/**
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* Use this function to reset the hash.
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*/
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void reset();
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private:
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struct MD5State
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{
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unsigned int count[2]; /* message length in bits, lsw first */
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unsigned int abcd[4]; /* digest buffer */
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unsigned char buf[64]; /* accumulate block */
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} m_state;
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void init();
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void process( const unsigned char* data );
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static const unsigned char pad[64];
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bool m_finished;
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};
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}
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#endif // MD5_H__
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