(svn r1026) -Add: [Network] Added unique id, so in network, each client has an
unique id (generated via md5)pull/155/head
truelight
20 years ago
parent
88827672ec
commit
b50b664f36
@ -0,0 +1,381 @@
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/*
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Copyright (C) 1999, 2000, 2002 Aladdin Enterprises. All rights reserved.
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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L. Peter Deutsch
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ghost@aladdin.com
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*/
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/* $Id: md5.c,v 1.6 2002/04/13 19:20:28 lpd Exp $ */
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/*
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Independent implementation of MD5 (RFC 1321).
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This code implements the MD5 Algorithm defined in RFC 1321, whose
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text is available at
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http://www.ietf.org/rfc/rfc1321.txt
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The code is derived from the text of the RFC, including the test suite
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(section A.5) but excluding the rest of Appendix A. It does not include
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any code or documentation that is identified in the RFC as being
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copyrighted.
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The original and principal author of md5.c is L. Peter Deutsch
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<ghost@aladdin.com>. Other authors are noted in the change history
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that follows (in reverse chronological order):
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2002-04-13 lpd Clarified derivation from RFC 1321; now handles byte order
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either statically or dynamically; added missing #include <string.h>
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in library.
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2002-03-11 lpd Corrected argument list for main(), and added int return
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type, in test program and T value program.
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2002-02-21 lpd Added missing #include <stdio.h> in test program.
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2000-07-03 lpd Patched to eliminate warnings about "constant is
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unsigned in ANSI C, signed in traditional"; made test program
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self-checking.
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1999-11-04 lpd Edited comments slightly for automatic TOC extraction.
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1999-10-18 lpd Fixed typo in header comment (ansi2knr rather than md5).
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1999-05-03 lpd Original version.
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*/
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#include "md5.h"
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#include <string.h>
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#undef BYTE_ORDER /* 1 = big-endian, -1 = little-endian, 0 = unknown */
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#ifdef ARCH_IS_BIG_ENDIAN
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# define BYTE_ORDER (ARCH_IS_BIG_ENDIAN ? 1 : -1)
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#else
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# define BYTE_ORDER 0
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#endif
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#define T_MASK ((md5_word_t)~0)
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#define T1 /* 0xd76aa478 */ (T_MASK ^ 0x28955b87)
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#define T2 /* 0xe8c7b756 */ (T_MASK ^ 0x173848a9)
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#define T3 0x242070db
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#define T4 /* 0xc1bdceee */ (T_MASK ^ 0x3e423111)
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#define T5 /* 0xf57c0faf */ (T_MASK ^ 0x0a83f050)
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#define T6 0x4787c62a
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#define T7 /* 0xa8304613 */ (T_MASK ^ 0x57cfb9ec)
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#define T8 /* 0xfd469501 */ (T_MASK ^ 0x02b96afe)
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#define T9 0x698098d8
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#define T10 /* 0x8b44f7af */ (T_MASK ^ 0x74bb0850)
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#define T11 /* 0xffff5bb1 */ (T_MASK ^ 0x0000a44e)
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#define T12 /* 0x895cd7be */ (T_MASK ^ 0x76a32841)
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#define T13 0x6b901122
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#define T14 /* 0xfd987193 */ (T_MASK ^ 0x02678e6c)
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#define T15 /* 0xa679438e */ (T_MASK ^ 0x5986bc71)
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#define T16 0x49b40821
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#define T17 /* 0xf61e2562 */ (T_MASK ^ 0x09e1da9d)
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#define T18 /* 0xc040b340 */ (T_MASK ^ 0x3fbf4cbf)
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#define T19 0x265e5a51
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#define T20 /* 0xe9b6c7aa */ (T_MASK ^ 0x16493855)
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#define T21 /* 0xd62f105d */ (T_MASK ^ 0x29d0efa2)
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#define T22 0x02441453
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#define T23 /* 0xd8a1e681 */ (T_MASK ^ 0x275e197e)
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#define T24 /* 0xe7d3fbc8 */ (T_MASK ^ 0x182c0437)
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#define T25 0x21e1cde6
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#define T26 /* 0xc33707d6 */ (T_MASK ^ 0x3cc8f829)
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#define T27 /* 0xf4d50d87 */ (T_MASK ^ 0x0b2af278)
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#define T28 0x455a14ed
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#define T29 /* 0xa9e3e905 */ (T_MASK ^ 0x561c16fa)
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#define T30 /* 0xfcefa3f8 */ (T_MASK ^ 0x03105c07)
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#define T31 0x676f02d9
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#define T32 /* 0x8d2a4c8a */ (T_MASK ^ 0x72d5b375)
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#define T33 /* 0xfffa3942 */ (T_MASK ^ 0x0005c6bd)
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#define T34 /* 0x8771f681 */ (T_MASK ^ 0x788e097e)
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#define T35 0x6d9d6122
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#define T36 /* 0xfde5380c */ (T_MASK ^ 0x021ac7f3)
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#define T37 /* 0xa4beea44 */ (T_MASK ^ 0x5b4115bb)
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#define T38 0x4bdecfa9
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#define T39 /* 0xf6bb4b60 */ (T_MASK ^ 0x0944b49f)
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#define T40 /* 0xbebfbc70 */ (T_MASK ^ 0x4140438f)
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#define T41 0x289b7ec6
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#define T42 /* 0xeaa127fa */ (T_MASK ^ 0x155ed805)
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#define T43 /* 0xd4ef3085 */ (T_MASK ^ 0x2b10cf7a)
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#define T44 0x04881d05
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#define T45 /* 0xd9d4d039 */ (T_MASK ^ 0x262b2fc6)
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#define T46 /* 0xe6db99e5 */ (T_MASK ^ 0x1924661a)
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#define T47 0x1fa27cf8
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#define T48 /* 0xc4ac5665 */ (T_MASK ^ 0x3b53a99a)
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#define T49 /* 0xf4292244 */ (T_MASK ^ 0x0bd6ddbb)
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#define T50 0x432aff97
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#define T51 /* 0xab9423a7 */ (T_MASK ^ 0x546bdc58)
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#define T52 /* 0xfc93a039 */ (T_MASK ^ 0x036c5fc6)
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#define T53 0x655b59c3
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#define T54 /* 0x8f0ccc92 */ (T_MASK ^ 0x70f3336d)
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#define T55 /* 0xffeff47d */ (T_MASK ^ 0x00100b82)
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#define T56 /* 0x85845dd1 */ (T_MASK ^ 0x7a7ba22e)
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#define T57 0x6fa87e4f
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#define T58 /* 0xfe2ce6e0 */ (T_MASK ^ 0x01d3191f)
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#define T59 /* 0xa3014314 */ (T_MASK ^ 0x5cfebceb)
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#define T60 0x4e0811a1
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#define T61 /* 0xf7537e82 */ (T_MASK ^ 0x08ac817d)
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#define T62 /* 0xbd3af235 */ (T_MASK ^ 0x42c50dca)
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#define T63 0x2ad7d2bb
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#define T64 /* 0xeb86d391 */ (T_MASK ^ 0x14792c6e)
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static void
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md5_process(md5_state_t *pms, const md5_byte_t *data /*[64]*/)
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{
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md5_word_t
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a = pms->abcd[0], b = pms->abcd[1],
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c = pms->abcd[2], d = pms->abcd[3];
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md5_word_t t;
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#if BYTE_ORDER > 0
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/* Define storage only for big-endian CPUs. */
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md5_word_t X[16];
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#else
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/* Define storage for little-endian or both types of CPUs. */
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md5_word_t xbuf[16];
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const md5_word_t *X;
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#endif
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{
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#if BYTE_ORDER == 0
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/*
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* Determine dynamically whether this is a big-endian or
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* little-endian machine, since we can use a more efficient
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* algorithm on the latter.
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*/
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static const int w = 1;
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if (*((const md5_byte_t *)&w)) /* dynamic little-endian */
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#endif
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#if BYTE_ORDER <= 0 /* little-endian */
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{
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/*
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* On little-endian machines, we can process properly aligned
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* data without copying it.
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*/
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if (!((data - (const md5_byte_t *)0) & 3)) {
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/* data are properly aligned */
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X = (const md5_word_t *)data;
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} else {
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/* not aligned */
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memcpy(xbuf, data, 64);
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X = xbuf;
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}
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}
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#endif
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#if BYTE_ORDER == 0
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else /* dynamic big-endian */
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#endif
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#if BYTE_ORDER >= 0 /* big-endian */
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{
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/*
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* On big-endian machines, we must arrange the bytes in the
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* right order.
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*/
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const md5_byte_t *xp = data;
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int i;
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# if BYTE_ORDER == 0
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X = xbuf; /* (dynamic only) */
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# else
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# define xbuf X /* (static only) */
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# endif
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for (i = 0; i < 16; ++i, xp += 4)
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xbuf[i] = xp[0] + (xp[1] << 8) + (xp[2] << 16) + (xp[3] << 24);
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}
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#endif
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}
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#define ROTATE_LEFT(x, n) (((x) << (n)) | ((x) >> (32 - (n))))
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/* Round 1. */
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/* Let [abcd k s i] denote the operation
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a = b + ((a + F(b,c,d) + X[k] + T[i]) <<< s). */
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#define F(x, y, z) (((x) & (y)) | (~(x) & (z)))
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#define SET(a, b, c, d, k, s, Ti)\
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t = a + F(b,c,d) + X[k] + Ti;\
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a = ROTATE_LEFT(t, s) + b
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/* Do the following 16 operations. */
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SET(a, b, c, d, 0, 7, T1);
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SET(d, a, b, c, 1, 12, T2);
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SET(c, d, a, b, 2, 17, T3);
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SET(b, c, d, a, 3, 22, T4);
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SET(a, b, c, d, 4, 7, T5);
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SET(d, a, b, c, 5, 12, T6);
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SET(c, d, a, b, 6, 17, T7);
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SET(b, c, d, a, 7, 22, T8);
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SET(a, b, c, d, 8, 7, T9);
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SET(d, a, b, c, 9, 12, T10);
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SET(c, d, a, b, 10, 17, T11);
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SET(b, c, d, a, 11, 22, T12);
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SET(a, b, c, d, 12, 7, T13);
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SET(d, a, b, c, 13, 12, T14);
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SET(c, d, a, b, 14, 17, T15);
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SET(b, c, d, a, 15, 22, T16);
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#undef SET
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/* Round 2. */
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/* Let [abcd k s i] denote the operation
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a = b + ((a + G(b,c,d) + X[k] + T[i]) <<< s). */
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#define G(x, y, z) (((x) & (z)) | ((y) & ~(z)))
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#define SET(a, b, c, d, k, s, Ti)\
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t = a + G(b,c,d) + X[k] + Ti;\
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a = ROTATE_LEFT(t, s) + b
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/* Do the following 16 operations. */
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SET(a, b, c, d, 1, 5, T17);
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SET(d, a, b, c, 6, 9, T18);
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SET(c, d, a, b, 11, 14, T19);
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SET(b, c, d, a, 0, 20, T20);
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SET(a, b, c, d, 5, 5, T21);
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SET(d, a, b, c, 10, 9, T22);
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SET(c, d, a, b, 15, 14, T23);
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SET(b, c, d, a, 4, 20, T24);
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SET(a, b, c, d, 9, 5, T25);
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SET(d, a, b, c, 14, 9, T26);
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SET(c, d, a, b, 3, 14, T27);
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SET(b, c, d, a, 8, 20, T28);
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SET(a, b, c, d, 13, 5, T29);
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SET(d, a, b, c, 2, 9, T30);
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SET(c, d, a, b, 7, 14, T31);
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SET(b, c, d, a, 12, 20, T32);
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#undef SET
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/* Round 3. */
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/* Let [abcd k s t] denote the operation
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a = b + ((a + H(b,c,d) + X[k] + T[i]) <<< s). */
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#define H(x, y, z) ((x) ^ (y) ^ (z))
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#define SET(a, b, c, d, k, s, Ti)\
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t = a + H(b,c,d) + X[k] + Ti;\
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a = ROTATE_LEFT(t, s) + b
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/* Do the following 16 operations. */
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SET(a, b, c, d, 5, 4, T33);
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SET(d, a, b, c, 8, 11, T34);
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SET(c, d, a, b, 11, 16, T35);
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SET(b, c, d, a, 14, 23, T36);
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SET(a, b, c, d, 1, 4, T37);
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SET(d, a, b, c, 4, 11, T38);
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SET(c, d, a, b, 7, 16, T39);
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SET(b, c, d, a, 10, 23, T40);
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SET(a, b, c, d, 13, 4, T41);
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SET(d, a, b, c, 0, 11, T42);
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SET(c, d, a, b, 3, 16, T43);
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SET(b, c, d, a, 6, 23, T44);
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SET(a, b, c, d, 9, 4, T45);
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SET(d, a, b, c, 12, 11, T46);
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SET(c, d, a, b, 15, 16, T47);
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SET(b, c, d, a, 2, 23, T48);
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#undef SET
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/* Round 4. */
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/* Let [abcd k s t] denote the operation
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a = b + ((a + I(b,c,d) + X[k] + T[i]) <<< s). */
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#define I(x, y, z) ((y) ^ ((x) | ~(z)))
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#define SET(a, b, c, d, k, s, Ti)\
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t = a + I(b,c,d) + X[k] + Ti;\
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a = ROTATE_LEFT(t, s) + b
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/* Do the following 16 operations. */
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SET(a, b, c, d, 0, 6, T49);
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SET(d, a, b, c, 7, 10, T50);
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SET(c, d, a, b, 14, 15, T51);
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SET(b, c, d, a, 5, 21, T52);
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SET(a, b, c, d, 12, 6, T53);
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SET(d, a, b, c, 3, 10, T54);
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SET(c, d, a, b, 10, 15, T55);
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SET(b, c, d, a, 1, 21, T56);
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SET(a, b, c, d, 8, 6, T57);
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SET(d, a, b, c, 15, 10, T58);
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SET(c, d, a, b, 6, 15, T59);
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SET(b, c, d, a, 13, 21, T60);
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SET(a, b, c, d, 4, 6, T61);
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SET(d, a, b, c, 11, 10, T62);
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SET(c, d, a, b, 2, 15, T63);
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SET(b, c, d, a, 9, 21, T64);
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#undef SET
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/* Then perform the following additions. (That is increment each
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of the four registers by the value it had before this block
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was started.) */
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pms->abcd[0] += a;
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pms->abcd[1] += b;
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pms->abcd[2] += c;
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pms->abcd[3] += d;
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}
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void
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md5_init(md5_state_t *pms)
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{
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pms->count[0] = pms->count[1] = 0;
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pms->abcd[0] = 0x67452301;
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pms->abcd[1] = /*0xefcdab89*/ T_MASK ^ 0x10325476;
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pms->abcd[2] = /*0x98badcfe*/ T_MASK ^ 0x67452301;
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pms->abcd[3] = 0x10325476;
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}
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void
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md5_append(md5_state_t *pms, const md5_byte_t *data, int nbytes)
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{
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const md5_byte_t *p = data;
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int left = nbytes;
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int offset = (pms->count[0] >> 3) & 63;
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md5_word_t nbits = (md5_word_t)(nbytes << 3);
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if (nbytes <= 0)
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return;
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/* Update the message length. */
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pms->count[1] += nbytes >> 29;
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pms->count[0] += nbits;
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if (pms->count[0] < nbits)
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pms->count[1]++;
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/* Process an initial partial block. */
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if (offset) {
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int copy = (offset + nbytes > 64 ? 64 - offset : nbytes);
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memcpy(pms->buf + offset, p, copy);
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if (offset + copy < 64)
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return;
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p += copy;
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left -= copy;
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md5_process(pms, pms->buf);
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}
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/* Process full blocks. */
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for (; left >= 64; p += 64, left -= 64)
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md5_process(pms, p);
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/* Process a final partial block. */
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if (left)
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memcpy(pms->buf, p, left);
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}
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void
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md5_finish(md5_state_t *pms, md5_byte_t digest[16])
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{
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static const md5_byte_t pad[64] = {
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0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
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};
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md5_byte_t data[8];
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int i;
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/* Save the length before padding. */
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for (i = 0; i < 8; ++i)
|
||||
data[i] = (md5_byte_t)(pms->count[i >> 2] >> ((i & 3) << 3));
|
||||
/* Pad to 56 bytes mod 64. */
|
||||
md5_append(pms, pad, ((55 - (pms->count[0] >> 3)) & 63) + 1);
|
||||
/* Append the length. */
|
||||
md5_append(pms, data, 8);
|
||||
for (i = 0; i < 16; ++i)
|
||||
digest[i] = (md5_byte_t)(pms->abcd[i >> 2] >> ((i & 3) << 3));
|
||||
}
|
||||
@ -0,0 +1,91 @@
|
||||
/*
|
||||
Copyright (C) 1999, 2002 Aladdin Enterprises. All rights reserved.
|
||||
|
||||
This software is provided 'as-is', without any express or implied
|
||||
warranty. In no event will the authors be held liable for any damages
|
||||
arising from the use of this software.
|
||||
|
||||
Permission is granted to anyone to use this software for any purpose,
|
||||
including commercial applications, and to alter it and redistribute it
|
||||
freely, subject to the following restrictions:
|
||||
|
||||
1. The origin of this software must not be misrepresented; you must not
|
||||
claim that you wrote the original software. If you use this software
|
||||
in a product, an acknowledgment in the product documentation would be
|
||||
appreciated but is not required.
|
||||
2. Altered source versions must be plainly marked as such, and must not be
|
||||
misrepresented as being the original software.
|
||||
3. This notice may not be removed or altered from any source distribution.
|
||||
|
||||
L. Peter Deutsch
|
||||
ghost@aladdin.com
|
||||
|
||||
*/
|
||||
/* $Id: md5.h,v 1.4 2002/04/13 19:20:28 lpd Exp $ */
|
||||
/*
|
||||
Independent implementation of MD5 (RFC 1321).
|
||||
|
||||
This code implements the MD5 Algorithm defined in RFC 1321, whose
|
||||
text is available at
|
||||
http://www.ietf.org/rfc/rfc1321.txt
|
||||
The code is derived from the text of the RFC, including the test suite
|
||||
(section A.5) but excluding the rest of Appendix A. It does not include
|
||||
any code or documentation that is identified in the RFC as being
|
||||
copyrighted.
|
||||
|
||||
The original and principal author of md5.h is L. Peter Deutsch
|
||||
<ghost@aladdin.com>. Other authors are noted in the change history
|
||||
that follows (in reverse chronological order):
|
||||
|
||||
2002-04-13 lpd Removed support for non-ANSI compilers; removed
|
||||
references to Ghostscript; clarified derivation from RFC 1321;
|
||||
now handles byte order either statically or dynamically.
|
||||
1999-11-04 lpd Edited comments slightly for automatic TOC extraction.
|
||||
1999-10-18 lpd Fixed typo in header comment (ansi2knr rather than md5);
|
||||
added conditionalization for C++ compilation from Martin
|
||||
Purschke <purschke@bnl.gov>.
|
||||
1999-05-03 lpd Original version.
|
||||
*/
|
||||
|
||||
#ifndef md5_INCLUDED
|
||||
# define md5_INCLUDED
|
||||
|
||||
/*
|
||||
* This package supports both compile-time and run-time determination of CPU
|
||||
* byte order. If ARCH_IS_BIG_ENDIAN is defined as 0, the code will be
|
||||
* compiled to run only on little-endian CPUs; if ARCH_IS_BIG_ENDIAN is
|
||||
* defined as non-zero, the code will be compiled to run only on big-endian
|
||||
* CPUs; if ARCH_IS_BIG_ENDIAN is not defined, the code will be compiled to
|
||||
* run on either big- or little-endian CPUs, but will run slightly less
|
||||
* efficiently on either one than if ARCH_IS_BIG_ENDIAN is defined.
|
||||
*/
|
||||
|
||||
typedef unsigned char md5_byte_t; /* 8-bit byte */
|
||||
typedef unsigned int md5_word_t; /* 32-bit word */
|
||||
|
||||
/* Define the state of the MD5 Algorithm. */
|
||||
typedef struct md5_state_s {
|
||||
md5_word_t count[2]; /* message length in bits, lsw first */
|
||||
md5_word_t abcd[4]; /* digest buffer */
|
||||
md5_byte_t buf[64]; /* accumulate block */
|
||||
} md5_state_t;
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C"
|
||||
{
|
||||
#endif
|
||||
|
||||
/* Initialize the algorithm. */
|
||||
void md5_init(md5_state_t *pms);
|
||||
|
||||
/* Append a string to the message. */
|
||||
void md5_append(md5_state_t *pms, const md5_byte_t *data, int nbytes);
|
||||
|
||||
/* Finish the message and return the digest. */
|
||||
void md5_finish(md5_state_t *pms, md5_byte_t digest[16]);
|
||||
|
||||
#ifdef __cplusplus
|
||||
} /* end extern "C" */
|
||||
#endif
|
||||
|
||||
#endif /* md5_INCLUDED */
|
||||
Loading…
Reference in New Issue