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00001 #ifndef FWCore_Utilities_md5_h 00002 #define FWCore_Utilities_md5_h 00003 00004 /* 00005 Copyright (C) 1999, 2002 Aladdin Enterprises. All rights reserved. 00006 00007 This software is provided 'as-is', without any express or implied 00008 warranty. In no event will the authors be held liable for any damages 00009 arising from the use of this software. 00010 00011 Permission is granted to anyone to use this software for any purpose, 00012 including commercial applications, and to alter it and redistribute it 00013 freely, subject to the following restrictions: 00014 00015 1. The origin of this software must not be misrepresented; you must not 00016 claim that you wrote the original software. If you use this software 00017 in a product, an acknowledgment in the product documentation would be 00018 appreciated but is not required. 00019 2. Altered source versions must be plainly marked as such, and must not be 00020 misrepresented as being the original software. 00021 3. This notice may not be removed or altered from any source distribution. 00022 00023 L. Peter Deutsch 00024 ghost@aladdin.com 00025 00026 */ 00027 /* $Id: md5.h,v 1.3 2007/06/14 02:00:58 wmtan Exp $ */ 00028 /* 00029 Independent implementation of MD5 (RFC 1321). 00030 00031 This code implements the MD5 Algorithm defined in RFC 1321, whose 00032 text is available at 00033 https://www.ietf.org/rfc/rfc1321.txt 00034 The code is derived from the text of the RFC, including the test suite 00035 (section A.5) but excluding the rest of Appendix A. It does not include 00036 any code or documentation that is identified in the RFC as being 00037 copyrighted. 00038 00039 The original and principal author of md5.h is L. Peter Deutsch 00040 <ghost@aladdin.com>. Other authors are noted in the change history 00041 that follows (in reverse chronological order): 00042 00043 2002-04-13 lpd Removed support for non-ANSI compilers; removed 00044 references to Ghostscript; clarified derivation from RFC 1321; 00045 now handles byte order either statically or dynamically. 00046 1999-11-04 lpd Edited comments slightly for automatic TOC extraction. 00047 1999-10-18 lpd Fixed typo in header comment (ansi2knr rather than md5); 00048 added conditionalization for C++ compilation from Martin 00049 Purschke <purschke@bnl.gov>. 00050 1999-05-03 lpd Original version. 00051 */ 00052 00053 /* 00054 * This package supports both compile-time and run-time determination of CPU 00055 * byte order. If ARCH_IS_BIG_ENDIAN is defined as 0, the code will be 00056 * compiled to run only on little-endian CPUs; if ARCH_IS_BIG_ENDIAN is 00057 * defined as non-zero, the code will be compiled to run only on big-endian 00058 * CPUs; if ARCH_IS_BIG_ENDIAN is not defined, the code will be compiled to 00059 * run on either big- or little-endian CPUs, but will run slightly less 00060 * efficiently on either one than if ARCH_IS_BIG_ENDIAN is defined. 00061 */ 00062 00063 typedef unsigned char md5_byte_t; /* 8-bit byte */ 00064 typedef unsigned int md5_word_t; /* 32-bit word */ 00065 00066 /* Define the state of the MD5 Algorithm. */ 00067 typedef struct md5_state_s { 00068 md5_word_t count[2]; /* message length in bits, lsw first */ 00069 md5_word_t abcd[4]; /* digest buffer */ 00070 md5_byte_t buf[64]; /* accumulate block */ 00071 } md5_state_t; 00072 00073 #ifdef __cplusplus 00074 extern "C" 00075 { 00076 #endif 00077 00078 /* Initialize the algorithm. */ 00079 void md5_init(md5_state_t *pms); 00080 00081 /* Append a string to the message. */ 00082 void md5_append(md5_state_t *pms, const md5_byte_t *data, int nbytes); 00083 00084 /* Finish the message and return the digest. */ 00085 void md5_finish(md5_state_t *pms, md5_byte_t digest[16]); 00086 00087 #ifdef __cplusplus 00088 } /* end extern "C" */ 00089 #endif 00090 00091 #endif 00092
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