project_files/frontlib/md5/md5.c
author Wuzzy <Wuzzy2@mail.ru>
Mon, 13 Nov 2017 22:14:45 +0100
changeset 12836 8610462e3d33
parent 10017 de822cd3df3a
permissions -rw-r--r--
Remove 2 unused number tags in Construction Mode GUI These numbers are shown aside the power tag, but the numbers never change. They don't serve any purpose and are just visual clutter and annoying, since they partially overlap. They are probably a leftover from copying code over from other scripts. With this changeset, only the power and turn time are left visible, as it is supposed to.
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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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   253
          a = b + ((a + H(b,c,d) + X[k] + T[i]) <<< s). */
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diff changeset
   254
#define H(x, y, z) ((x) ^ (y) ^ (z))
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diff changeset
   255
#define SET(a, b, c, d, k, s, Ti)\
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   256
  t = a + H(b,c,d) + X[k] + Ti;\
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   257
  a = ROTATE_LEFT(t, s) + b
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diff changeset
   258
     /* Do the following 16 operations. */
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diff changeset
   259
    SET(a, b, c, d,  5,  4, T33);
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diff changeset
   260
    SET(d, a, b, c,  8, 11, T34);
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diff changeset
   261
    SET(c, d, a, b, 11, 16, T35);
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diff changeset
   262
    SET(b, c, d, a, 14, 23, T36);
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diff changeset
   263
    SET(a, b, c, d,  1,  4, T37);
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parents:
diff changeset
   264
    SET(d, a, b, c,  4, 11, T38);
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diff changeset
   265
    SET(c, d, a, b,  7, 16, T39);
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diff changeset
   266
    SET(b, c, d, a, 10, 23, T40);
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diff changeset
   267
    SET(a, b, c, d, 13,  4, T41);
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diff changeset
   268
    SET(d, a, b, c,  0, 11, T42);
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diff changeset
   269
    SET(c, d, a, b,  3, 16, T43);
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diff changeset
   270
    SET(b, c, d, a,  6, 23, T44);
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diff changeset
   271
    SET(a, b, c, d,  9,  4, T45);
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diff changeset
   272
    SET(d, a, b, c, 12, 11, T46);
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diff changeset
   273
    SET(c, d, a, b, 15, 16, T47);
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diff changeset
   274
    SET(b, c, d, a,  2, 23, T48);
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diff changeset
   275
#undef SET
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   276
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   277
     /* Round 4. */
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diff changeset
   278
     /* Let [abcd k s t] denote the operation
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diff changeset
   279
          a = b + ((a + I(b,c,d) + X[k] + T[i]) <<< s). */
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diff changeset
   280
#define I(x, y, z) ((y) ^ ((x) | ~(z)))
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diff changeset
   281
#define SET(a, b, c, d, k, s, Ti)\
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diff changeset
   282
  t = a + I(b,c,d) + X[k] + Ti;\
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diff changeset
   283
  a = ROTATE_LEFT(t, s) + b
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diff changeset
   284
     /* Do the following 16 operations. */
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diff changeset
   285
    SET(a, b, c, d,  0,  6, T49);
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parents:
diff changeset
   286
    SET(d, a, b, c,  7, 10, T50);
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diff changeset
   287
    SET(c, d, a, b, 14, 15, T51);
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diff changeset
   288
    SET(b, c, d, a,  5, 21, T52);
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parents:
diff changeset
   289
    SET(a, b, c, d, 12,  6, T53);
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parents:
diff changeset
   290
    SET(d, a, b, c,  3, 10, T54);
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parents:
diff changeset
   291
    SET(c, d, a, b, 10, 15, T55);
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parents:
diff changeset
   292
    SET(b, c, d, a,  1, 21, T56);
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parents:
diff changeset
   293
    SET(a, b, c, d,  8,  6, T57);
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parents:
diff changeset
   294
    SET(d, a, b, c, 15, 10, T58);
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diff changeset
   295
    SET(c, d, a, b,  6, 15, T59);
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diff changeset
   296
    SET(b, c, d, a, 13, 21, T60);
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diff changeset
   297
    SET(a, b, c, d,  4,  6, T61);
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parents:
diff changeset
   298
    SET(d, a, b, c, 11, 10, T62);
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parents:
diff changeset
   299
    SET(c, d, a, b,  2, 15, T63);
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parents:
diff changeset
   300
    SET(b, c, d, a,  9, 21, T64);
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parents:
diff changeset
   301
#undef SET
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diff changeset
   302
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diff changeset
   303
     /* Then perform the following additions. (That is increment each
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diff changeset
   304
        of the four registers by the value it had before this block
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parents:
diff changeset
   305
        was started.) */
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diff changeset
   306
    pms->abcd[0] += a;
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parents:
diff changeset
   307
    pms->abcd[1] += b;
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parents:
diff changeset
   308
    pms->abcd[2] += c;
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parents:
diff changeset
   309
    pms->abcd[3] += d;
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parents:
diff changeset
   310
}
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diff changeset
   311
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diff changeset
   312
void
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parents:
diff changeset
   313
md5_init(md5_state_t *pms)
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parents:
diff changeset
   314
{
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parents:
diff changeset
   315
    pms->count[0] = pms->count[1] = 0;
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parents:
diff changeset
   316
    pms->abcd[0] = 0x67452301;
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Medo <smaxein@googlemail.com>
parents:
diff changeset
   317
    pms->abcd[1] = /*0xefcdab89*/ T_MASK ^ 0x10325476;
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parents:
diff changeset
   318
    pms->abcd[2] = /*0x98badcfe*/ T_MASK ^ 0x67452301;
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parents:
diff changeset
   319
    pms->abcd[3] = 0x10325476;
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parents:
diff changeset
   320
}
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parents:
diff changeset
   321
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parents:
diff changeset
   322
void
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parents:
diff changeset
   323
md5_append(md5_state_t *pms, const md5_byte_t *data, int nbytes)
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parents:
diff changeset
   324
{
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parents:
diff changeset
   325
    const md5_byte_t *p = data;
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parents:
diff changeset
   326
    int left = nbytes;
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parents:
diff changeset
   327
    int offset = (pms->count[0] >> 3) & 63;
5b0aeef8ba2a More progress on the netplay part of the frontlib
Medo <smaxein@googlemail.com>
parents:
diff changeset
   328
    md5_word_t nbits = (md5_word_t)(nbytes << 3);
5b0aeef8ba2a More progress on the netplay part of the frontlib
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parents:
diff changeset
   329
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parents:
diff changeset
   330
    if (nbytes <= 0)
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diff changeset
   331
    return;
7269
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parents:
diff changeset
   332
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parents:
diff changeset
   333
    /* Update the message length. */
5b0aeef8ba2a More progress on the netplay part of the frontlib
Medo <smaxein@googlemail.com>
parents:
diff changeset
   334
    pms->count[1] += nbytes >> 29;
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Medo <smaxein@googlemail.com>
parents:
diff changeset
   335
    pms->count[0] += nbits;
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parents:
diff changeset
   336
    if (pms->count[0] < nbits)
10017
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parents: 7269
diff changeset
   337
    pms->count[1]++;
7269
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parents:
diff changeset
   338
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parents:
diff changeset
   339
    /* Process an initial partial block. */
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parents:
diff changeset
   340
    if (offset) {
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diff changeset
   341
    int copy = (offset + nbytes > 64 ? 64 - offset : nbytes);
7269
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parents:
diff changeset
   342
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diff changeset
   343
    memcpy(pms->buf + offset, p, copy);
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diff changeset
   344
    if (offset + copy < 64)
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parents: 7269
diff changeset
   345
        return;
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diff changeset
   346
    p += copy;
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parents: 7269
diff changeset
   347
    left -= copy;
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parents: 7269
diff changeset
   348
    md5_process(pms, pms->buf);
7269
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parents:
diff changeset
   349
    }
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parents:
diff changeset
   350
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parents:
diff changeset
   351
    /* Process full blocks. */
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parents:
diff changeset
   352
    for (; left >= 64; p += 64, left -= 64)
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diff changeset
   353
    md5_process(pms, p);
7269
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parents:
diff changeset
   354
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parents:
diff changeset
   355
    /* Process a final partial block. */
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parents:
diff changeset
   356
    if (left)
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diff changeset
   357
    memcpy(pms->buf, p, left);
7269
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parents:
diff changeset
   358
}
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parents:
diff changeset
   359
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Medo <smaxein@googlemail.com>
parents:
diff changeset
   360
void
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Medo <smaxein@googlemail.com>
parents:
diff changeset
   361
md5_finish(md5_state_t *pms, md5_byte_t digest[16])
5b0aeef8ba2a More progress on the netplay part of the frontlib
Medo <smaxein@googlemail.com>
parents:
diff changeset
   362
{
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Medo <smaxein@googlemail.com>
parents:
diff changeset
   363
    static const md5_byte_t pad[64] = {
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diff changeset
   364
    0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
de822cd3df3a fixwhitespace and dos2unix
koda
parents: 7269
diff changeset
   365
    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
de822cd3df3a fixwhitespace and dos2unix
koda
parents: 7269
diff changeset
   366
    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
de822cd3df3a fixwhitespace and dos2unix
koda
parents: 7269
diff changeset
   367
    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
7269
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parents:
diff changeset
   368
    };
5b0aeef8ba2a More progress on the netplay part of the frontlib
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parents:
diff changeset
   369
    md5_byte_t data[8];
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Medo <smaxein@googlemail.com>
parents:
diff changeset
   370
    int i;
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Medo <smaxein@googlemail.com>
parents:
diff changeset
   371
5b0aeef8ba2a More progress on the netplay part of the frontlib
Medo <smaxein@googlemail.com>
parents:
diff changeset
   372
    /* Save the length before padding. */
5b0aeef8ba2a More progress on the netplay part of the frontlib
Medo <smaxein@googlemail.com>
parents:
diff changeset
   373
    for (i = 0; i < 8; ++i)
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parents: 7269
diff changeset
   374
    data[i] = (md5_byte_t)(pms->count[i >> 2] >> ((i & 3) << 3));
7269
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Medo <smaxein@googlemail.com>
parents:
diff changeset
   375
    /* Pad to 56 bytes mod 64. */
5b0aeef8ba2a More progress on the netplay part of the frontlib
Medo <smaxein@googlemail.com>
parents:
diff changeset
   376
    md5_append(pms, pad, ((55 - (pms->count[0] >> 3)) & 63) + 1);
5b0aeef8ba2a More progress on the netplay part of the frontlib
Medo <smaxein@googlemail.com>
parents:
diff changeset
   377
    /* Append the length. */
5b0aeef8ba2a More progress on the netplay part of the frontlib
Medo <smaxein@googlemail.com>
parents:
diff changeset
   378
    md5_append(pms, data, 8);
5b0aeef8ba2a More progress on the netplay part of the frontlib
Medo <smaxein@googlemail.com>
parents:
diff changeset
   379
    for (i = 0; i < 16; ++i)
10017
de822cd3df3a fixwhitespace and dos2unix
koda
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    digest[i] = (md5_byte_t)(pms->abcd[i >> 2] >> ((i & 3) << 3));
7269
5b0aeef8ba2a More progress on the netplay part of the frontlib
Medo <smaxein@googlemail.com>
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   381
}