gloox  1.0.1
md5.h
1 /*
2  Copyright (C) 1999, 2002 Aladdin Enterprises. All rights reserved.
3 
4  This software is provided 'as-is', without any express or implied
5  warranty. In no event will the authors be held liable for any damages
6  arising from the use of this software.
7 
8  Permission is granted to anyone to use this software for any purpose,
9  including commercial applications, and to alter it and redistribute it
10  freely, subject to the following restrictions:
11 
12  1. The origin of this software must not be misrepresented; you must not
13  claim that you wrote the original software. If you use this software
14  in a product, an acknowledgment in the product documentation would be
15  appreciated but is not required.
16  2. Altered source versions must be plainly marked as such, and must not be
17  misrepresented as being the original software.
18  3. This notice may not be removed or altered from any source distribution.
19 
20  L. Peter Deutsch
21  ghost@aladdin.com
22 
23  */
24 /* $Id: md5.h,v 1.4 2002/04/13 19:20:28 lpd Exp $ */
25 /*
26  Independent implementation of MD5 (RFC 1321).
27 
28  This code implements the MD5 Algorithm defined in RFC 1321, whose
29  text is available at
30  http://www.ietf.org/rfc/rfc1321.txt
31  The code is derived from the text of the RFC, including the test suite
32  (section A.5) but excluding the rest of Appendix A. It does not include
33  any code or documentation that is identified in the RFC as being
34  copyrighted.
35 
36  The original and principal author of md5.h is L. Peter Deutsch
37  <ghost@aladdin.com>. Other authors are noted in the change history
38  that follows (in reverse chronological order):
39 
40  2002-04-13 lpd Removed support for non-ANSI compilers; removed
41  references to Ghostscript; clarified derivation from RFC 1321;
42  now handles byte order either statically or dynamically.
43  1999-11-04 lpd Edited comments slightly for automatic TOC extraction.
44  1999-10-18 lpd Fixed typo in header comment (ansi2knr rather than md5);
45  added conditionalization for C++ compilation from Martin
46  Purschke <purschke@bnl.gov>.
47  1999-05-03 lpd Original version.
48  */
49 
50 #ifndef MD5_H__
51 #define MD5_H__
52 
53 #include "macros.h"
54 
55 #include <string>
56 
57 namespace gloox
58 {
59 
69  class GLOOX_API MD5
70  {
71  public:
75  MD5();
76 
80  virtual ~MD5();
81 
87  void feed( const unsigned char* data, int bytes );
88 
93  void feed( const std::string& data );
94 
99  void finalize();
100 
105  const std::string hex();
106 
111  const std::string binary();
112 
116  void reset();
117 
118  private:
119  struct MD5State
120  {
121  unsigned int count[2]; /* message length in bits, lsw first */
122  unsigned int abcd[4]; /* digest buffer */
123  unsigned char buf[64]; /* accumulate block */
124  } m_state;
125 
126  void init();
127  void process( const unsigned char* data );
128 
129  static const unsigned char pad[64];
130 
131  bool m_finished;
132 
133  };
134 
135 }
136 
137 #endif // MD5_H__