00001 /* 00002 Copyright (C) 1999, 2002 Aladdin Enterprises. All rights reserved. 00003 00004 This software is provided 'as-is', without any express or implied 00005 warranty. In no event will the authors be held liable for any damages 00006 arising from the use of this software. 00007 00008 Permission is granted to anyone to use this software for any purpose, 00009 including commercial applications, and to alter it and redistribute it 00010 freely, subject to the following restrictions: 00011 00012 1. The origin of this software must not be misrepresented; you must not 00013 claim that you wrote the original software. If you use this software 00014 in a product, an acknowledgment in the product documentation would be 00015 appreciated but is not required. 00016 2. Altered source versions must be plainly marked as such, and must not be 00017 misrepresented as being the original software. 00018 3. This notice may not be removed or altered from any source distribution. 00019 00020 L. Peter Deutsch 00021 ghost@aladdin.com 00022 00023 */ 00024 /* $Id: md5.h,v 1.4 2002/04/13 19:20:28 lpd Exp $ */ 00025 /* 00026 Independent implementation of MD5 (RFC 1321). 00027 00028 This code implements the MD5 Algorithm defined in RFC 1321, whose 00029 text is available at 00030 http://www.ietf.org/rfc/rfc1321.txt 00031 The code is derived from the text of the RFC, including the test suite 00032 (section A.5) but excluding the rest of Appendix A. It does not include 00033 any code or documentation that is identified in the RFC as being 00034 copyrighted. 00035 00036 The original and principal author of md5.h is L. Peter Deutsch 00037 <ghost@aladdin.com>. Other authors are noted in the change history 00038 that follows (in reverse chronological order): 00039 00040 2002-04-13 lpd Removed support for non-ANSI compilers; removed 00041 references to Ghostscript; clarified derivation from RFC 1321; 00042 now handles byte order either statically or dynamically. 00043 1999-11-04 lpd Edited comments slightly for automatic TOC extraction. 00044 1999-10-18 lpd Fixed typo in header comment (ansi2knr rather than md5); 00045 added conditionalization for C++ compilation from Martin 00046 Purschke <purschke@bnl.gov>. 00047 1999-05-03 lpd Original version. 00048 */ 00049 00050 /* Copyright (C) 2008 PrimeBase Technologies GmbH, Germany 00051 * 00052 * PrimeBase S3Daemon 00053 * 00054 * This program is free software; you can redistribute it and/or modify 00055 * it under the terms of the GNU General Public License as published by 00056 * the Free Software Foundation; either version 2 of the License, or 00057 * (at your option) any later version. 00058 * 00059 * This program is distributed in the hope that it will be useful, 00060 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00061 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00062 * GNU General Public License for more details. 00063 * 00064 * You should have received a copy of the GNU General Public License 00065 * along with this program; if not, write to the Free Software 00066 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 00067 * 00068 * Modified by Barry Leslie on 10/17/08. 00069 * I have put a C++ wrapper around the data and functions to create an Md5 class. 00070 * 00071 */ 00072 #pragma once 00073 #ifndef md5_INCLUDED 00074 #define md5_INCLUDED 00075 00076 #include <string.h> 00077 00078 #include "CSDefs.h" 00079 00080 /* Define the state of the MD5 Algorithm. */ 00081 typedef unsigned int md5_word_t; 00082 00083 #define MD5_CHECKSUM_SIZE CHECKSUM_VALUE_SIZE 00084 #define MD5_CHECKSUM_STRING_SIZE (CHECKSUM_VALUE_SIZE * 2 + 1) 00085 00086 class CSMd5 { 00087 private: 00088 struct md5_state_s { 00089 md5_word_t count[2]; /* message length in bits, lsw first */ 00090 md5_word_t abcd[4]; /* digest buffer */ 00091 u_char buf[64]; /* accumulate block */ 00092 } md5_state; 00093 00094 u_char digest[MD5_CHECKSUM_SIZE]; 00095 char digest_cstr[MD5_CHECKSUM_STRING_SIZE]; 00096 00097 void md5_process(const u_char *data /*[64]*/); 00098 void md5_digest(); 00099 00100 public: 00101 CSMd5() { 00102 md5_init(); 00103 } 00104 00105 void md5_init(); 00106 00107 /* Append a string to the message. */ 00108 void md5_append(const u_char *data, int nbytes); 00109 00110 void md5_append(const char *data) { 00111 md5_append((const u_char *) data, strlen(data)); 00112 } 00113 00114 /* Finish the message and return the digest. */ 00115 00116 // Returns the raw bin digest. 00117 const u_char *md5_get_digest() { 00118 if (!digest_cstr[0]) 00119 md5_digest(); 00120 return digest; 00121 } 00122 00123 // Returns the bin/hex digest. 00124 void md5_get_digest(Md5Digest *d) { 00125 if (!digest_cstr[0]) 00126 md5_digest(); 00127 00128 memcpy(d->val, digest, CHECKSUM_VALUE_SIZE); 00129 } 00130 00131 // Returns the bin/hex digest. 00132 const char *md5_get_digest_cstr() { 00133 if (!digest_cstr[0]) 00134 md5_digest(); 00135 return digest_cstr; 00136 } 00137 00138 }; 00139 00140 #endif /* md5_INCLUDED */