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md5.hpp

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00001 /*
00002     Copyright 2005-2007 Adobe Systems Incorporated and others
00003     Distributed under the MIT License (see accompanying file LICENSE_1_0_0.txt
00004     or a copy at http://stlab.adobe.com/licenses.html)
00005 */
00006 
00007 /*************************************************************************************************/
00008 
00009 #ifndef ADOBE_MD5_HPP
00010 #define ADOBE_MD5_HPP
00011 
00012 #include <adobe/config.hpp>
00013 
00014 #include <boost/cstdint.hpp>
00015 #include <boost/array.hpp>
00016 
00017 #include <cstddef>
00018 
00019 /*************************************************************************************************/
00020 
00021 /*
00022     Relevant copyright information is provided below and may not be removed from this file. 
00023 
00024     Derived from the RSA Data Security, Inc. MD5 Message-Digest Algorithm.
00025 */
00026 
00027 /*************************************************************************************************/
00028 
00029 /*
00030     MD5C.C - RSA Data Security, Inc., MD5 message-digest algorithm
00031 
00032     Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All rights 
00033     reserved.
00034 
00035     License to copy and use this software is granted provided that it is 
00036     identified as the "RSA Data Security, Inc. MD5 Message-Digest Algorithm" in 
00037     all material mentioning or referencing this software or this function. 
00038 
00039     License is also granted to make and use derivative works provided that such 
00040     works are identified as "derived from the RSA Data Security, Inc. MD5 
00041     Message-Digest Algorithm" in all material mentioning or referencing the 
00042     derived work. 
00043     
00044     RSA Data Security, Inc. makes no representations concerning either the 
00045     merchantability of this software or the suitability of this software for 
00046     any particular purpose. It is provided "as is" without express or implied 
00047     warranty of any kind. 
00048     
00049     These notices must be retained in any copies of any part of this 
00050     documentation and/or software. 
00051 */
00052 
00053 /*************************************************************************************************/
00054 
00055 namespace adobe {
00056 
00093 /*************************************************************************************************/
00094 
00095 class md5_t
00096 {
00097 public:
00098     typedef boost::array<boost::uint8_t, 16> digest_t;
00099 
00100     md5_t();
00101 
00102     void update(void* input_block, std::size_t input_length);
00103 
00104     digest_t final();
00105 
00106 private:
00107     void reset();
00108 
00109     boost::uint32_t state_m[4];     /* state (ABCD) */
00110     boost::uint32_t count_m[2];     /* number of bits, modulo 2^64 (lsb first) */
00111     boost::uint8_t  buffer_m[64];   /* input buffer */
00112 };
00113 
00114 /*************************************************************************************************/
00115 
00126 inline md5_t::digest_t md5(void* input_block, std::size_t input_length)
00127 {
00128     md5_t m;
00129 
00130     m.update(input_block, input_length);
00131 
00132     return m.final();
00133 }
00134 
00135 /*************************************************************************************************/
00136 
00137 } // namespace adobe
00138 
00139 /*************************************************************************************************/
00140 
00141 #endif
00142 
00143 /*************************************************************************************************/

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