00001 /* 00002 Copyright (C) 1999 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 /* 00025 Independent implementation of MD5 (RFC 1321). 00026 00027 This code implements the MD5 Algorithm defined in RFC 1321. 00028 It is derived directly from the text of the RFC and not from the 00029 reference implementation. 00030 00031 The original and principal author of md5.h is L. Peter Deutsch 00032 <ghost@aladdin.com>. Other authors are noted in the change history 00033 that follows (in reverse chronological order): 00034 00035 1999-11-04 lpd Edited comments slightly for automatic TOC extraction. 00036 1999-10-18 lpd Fixed typo in header comment (ansi2knr rather than md5); 00037 added conditionalization for C++ compilation from Martin 00038 Purschke <purschke@bnl.gov>. 00039 1999-05-03 lpd Original version. 00040 */ 00041 00042 /* $OrigId: md5.h,v 1.2 2001/03/26 08:57:14 matz Exp $ */ 00043 /* $RoughId: md5.h,v 1.3 2002/02/24 08:14:31 knu Exp $ */ 00044 /* $Id: md5.h 28341 2010-06-16 09:38:14Z knu $ */ 00045 00046 #ifndef MD5_INCLUDED 00047 # define MD5_INCLUDED 00048 00049 #include "../defs.h" 00050 00051 /* 00052 * This code has some adaptations for the Ghostscript environment, but it 00053 * will compile and run correctly in any environment with 8-bit chars and 00054 * 32-bit ints. Specifically, it assumes that if the following are 00055 * defined, they have the same meaning as in Ghostscript: P1, P2, P3. 00056 */ 00057 00058 /* Define the state of the MD5 Algorithm. */ 00059 typedef struct md5_state_s { 00060 uint32_t count[2]; /* message length in bits, lsw first */ 00061 uint32_t state[4]; /* digest buffer */ 00062 uint8_t buffer[64]; /* accumulate block */ 00063 } MD5_CTX; 00064 00065 #ifdef RUBY 00066 /* avoid name clash */ 00067 #define MD5_Init rb_Digest_MD5_Init 00068 #define MD5_Update rb_Digest_MD5_Update 00069 #define MD5_Finish rb_Digest_MD5_Finish 00070 #endif 00071 00072 void MD5_Init _((MD5_CTX *pms)); 00073 void MD5_Update _((MD5_CTX *pms, const uint8_t *data, size_t nbytes)); 00074 void MD5_Finish _((MD5_CTX *pms, uint8_t *digest)); 00075 00076 #define MD5_BLOCK_LENGTH 64 00077 #define MD5_DIGEST_LENGTH 16 00078 #define MD5_DIGEST_STRING_LENGTH (MD5_DIGEST_LENGTH * 2 + 1) 00079 00080 #endif /* MD5_INCLUDED */ 00081