00001 /* $Id: md5.h 11695 2007-12-25 13:59:21Z skidd13 $ */ 00002 00005 /* 00006 Copyright (C) 1999, 2002 Aladdin Enterprises. All rights reserved. 00007 00008 This software is provided 'as-is', without any express or implied 00009 warranty. In no event will the authors be held liable for any damages 00010 arising from the use of this software. 00011 00012 Permission is granted to anyone to use this software for any purpose, 00013 including commercial applications, and to alter it and redistribute it 00014 freely, subject to the following restrictions: 00015 00016 1. The origin of this software must not be misrepresented; you must not 00017 claim that you wrote the original software. If you use this software 00018 in a product, an acknowledgment in the product documentation would be 00019 appreciated but is not required. 00020 2. Altered source versions must be plainly marked as such, and must not be 00021 misrepresented as being the original software. 00022 3. This notice may not be removed or altered from any source distribution. 00023 00024 L. Peter Deutsch 00025 ghost@aladdin.com 00026 00027 */ 00028 00029 /* 00030 Independent implementation of MD5 (RFC 1321). 00031 00032 This code implements the MD5 Algorithm defined in RFC 1321, whose 00033 text is available at 00034 http://www.ietf.org/rfc/rfc1321.txt 00035 The code is derived from the text of the RFC, including the test suite 00036 (section A.5) but excluding the rest of Appendix A. It does not include 00037 any code or documentation that is identified in the RFC as being 00038 copyrighted. 00039 00040 The original and principal author of md5.h is L. Peter Deutsch 00041 <ghost@aladdin.com>. Other authors are noted in the change history 00042 that follows (in reverse chronological order): 00043 00044 2007-12-24 Changed to C++ and adapted to OpenTTD source 00045 2002-04-13 lpd Removed support for non-ANSI compilers; removed 00046 references to Ghostscript; clarified derivation from RFC 1321; 00047 now handles byte order either statically or dynamically. 00048 1999-11-04 lpd Edited comments slightly for automatic TOC extraction. 00049 1999-10-18 lpd Fixed typo in header comment (ansi2knr rather than md5); 00050 added conditionalization for C++ compilation from Martin 00051 Purschke <purschke@bnl.gov>. 00052 1999-05-03 lpd Original version. 00053 */ 00054 00055 #ifndef MD5_INCLUDED 00056 #define MD5_INCLUDED 00057 00058 /* 00059 * This package supports both compile-time and run-time determination of CPU 00060 * byte order. If ARCH_IS_BIG_ENDIAN is defined as 0, the code will be 00061 * compiled to run only on little-endian CPUs; if ARCH_IS_BIG_ENDIAN is 00062 * defined as non-zero, the code will be compiled to run only on big-endian 00063 * CPUs; if ARCH_IS_BIG_ENDIAN is not defined, the code will be compiled to 00064 * run on either big- or little-endian CPUs, but will run slightly less 00065 * efficiently on either one than if ARCH_IS_BIG_ENDIAN is defined. 00066 */ 00067 00068 struct Md5 { 00069 private: 00070 uint32 count[2]; 00071 uint32 abcd[4]; 00072 uint8 buf[64]; 00073 00074 void Process(const uint8 *data); 00075 00076 public: 00077 Md5(); 00078 void Append(const void *data, const size_t nbytes); 00079 void Finish(uint8 digest[16]); 00080 }; 00081 00082 #endif /* MD5_INCLUDED */