From: James Turner Date: Thu, 6 Feb 2014 10:42:41 +0000 (+0000) Subject: Replace md5 from RSA with OpenBSD version X-Git-Url: https://git.mxchange.org/?a=commitdiff_plain;h=4f5c51963698ef71e18bcdc235c1fd8b723e7728;p=simgear.git Replace md5 from RSA with OpenBSD version - no more BSD-with-advertising-license - files from http://sources.debian.net/src/dpkg/1.17.6/lib/compat (with SG_ prefixes to avoid collision issues) --- diff --git a/simgear/io/SVNReportParser.cxx b/simgear/io/SVNReportParser.cxx index d31d3276..72b61693 100644 --- a/simgear/io/SVNReportParser.cxx +++ b/simgear/io/SVNReportParser.cxx @@ -377,8 +377,9 @@ public: memset(&md5Context, 0, sizeof(SG_MD5_CTX)); SG_MD5Init(&md5Context); SG_MD5Update(&md5Context, (unsigned char*) output.data(), output.size()); - SG_MD5Final(&md5Context); - decodedFileMd5 = strutils::encodeHex(md5Context.digest, 16); + unsigned char digest[MD5_DIGEST_LENGTH]; + SG_MD5Final(digest, &md5Context); + decodedFileMd5 = strutils::encodeHex(digest, MD5_DIGEST_LENGTH); return true; } diff --git a/simgear/package/Install.cxx b/simgear/package/Install.cxx index d513786c..3a159816 100644 --- a/simgear/package/Install.cxx +++ b/simgear/package/Install.cxx @@ -89,13 +89,14 @@ protected: return; } - SG_MD5Final(&m_md5); + unsigned char digest[MD5_DIGEST_LENGTH]; + SG_MD5Final(digest, &m_md5); // convert final sum to hex const char hexChar[] = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'}; std::stringstream hexMd5; - for (int i=0; i<16;++i) { - hexMd5 << hexChar[m_md5.digest[i] >> 4]; - hexMd5 << hexChar[m_md5.digest[i] & 0x0f]; + for (int i=0; i> 4]; + hexMd5 << hexChar[digest[i] & 0x0f]; } if (hexMd5.str() != m_owner->package()->md5()) { diff --git a/simgear/package/md5.c b/simgear/package/md5.c index 93878e96..31a78d8b 100644 --- a/simgear/package/md5.c +++ b/simgear/package/md5.c @@ -1,266 +1,250 @@ -/* - ********************************************************************** - ** md5.c ** - ** RSA Data Security, Inc. MD5 Message Digest Algorithm ** - ** Created: 2/17/90 RLR ** - ** Revised: 1/91 SRD,AJ,BSK,JT Reference C Version ** - ********************************************************************** - */ +/* $OpenBSD: md5.c,v 1.7 2004/05/28 15:10:27 millert Exp $ */ /* - ********************************************************************** - ** Copyright (C) 1990, RSA Data Security, Inc. All rights reserved. ** - ** ** - ** License to copy and use this software is granted provided that ** - ** it is identified as the "RSA Data Security, Inc. MD5 Message ** - ** Digest Algorithm" in all material mentioning or referencing this ** - ** software or this function. ** - ** ** - ** License is also granted to make and use derivative works ** - ** provided that such works are identified as "derived from the RSA ** - ** Data Security, Inc. MD5 Message Digest Algorithm" in all ** - ** material mentioning or referencing the derived work. ** - ** ** - ** RSA Data Security, Inc. makes no representations concerning ** - ** either the merchantability of this software or the suitability ** - ** of this software for any particular purpose. It is provided "as ** - ** is" without express or implied warranty of any kind. ** - ** ** - ** These notices must be retained in any copies of any part of this ** - ** documentation and/or software. ** - ********************************************************************** + * This code implements the MD5 message-digest algorithm. + * The algorithm is due to Ron Rivest. This code was + * written by Colin Plumb in 1993, no copyright is claimed. + * This code is in the public domain; do with it what you wish. + * + * Equivalent code is available from RSA Data Security, Inc. + * This code has been tested against that, and is equivalent, + * except that you don't need to include two pages of legalese + * with every copy. + * + * To compute the message digest of a chunk of bytes, declare an + * MD5Context structure, pass it to MD5Init, call MD5Update as + * needed on buffers full of bytes, and then call MD5Final, which + * will fill a supplied 16-byte array with the digest. */ -/* -- include the following line if the md5.h header file is separate -- */ -#include "md5.h" - -/* forward declaration */ -static void Transform (); -static unsigned char PADDING[64] = { - 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 -}; - -/* F, G and H are basic MD5 functions: selection, majority, parity */ -#define F(x, y, z) (((x) & (y)) | ((~x) & (z))) -#define G(x, y, z) (((x) & (z)) | ((y) & (~z))) -#define H(x, y, z) ((x) ^ (y) ^ (z)) -#define I(x, y, z) ((y) ^ ((x) | (~z))) +#include +#include -/* ROTATE_LEFT rotates x left n bits */ -#define ROTATE_LEFT(x, n) (((x) << (n)) | ((x) >> (32-(n)))) +#include "md5.h" -/* FF, GG, HH, and II transformations for rounds 1, 2, 3, and 4 */ -/* Rotation is separate from addition to prevent recomputation */ -#define FF(a, b, c, d, x, s, ac) \ - {(a) += F ((b), (c), (d)) + (x) + (UINT4)(ac); \ - (a) = ROTATE_LEFT ((a), (s)); \ - (a) += (b); \ - } -#define GG(a, b, c, d, x, s, ac) \ - {(a) += G ((b), (c), (d)) + (x) + (UINT4)(ac); \ - (a) = ROTATE_LEFT ((a), (s)); \ - (a) += (b); \ - } -#define HH(a, b, c, d, x, s, ac) \ - {(a) += H ((b), (c), (d)) + (x) + (UINT4)(ac); \ - (a) = ROTATE_LEFT ((a), (s)); \ - (a) += (b); \ - } -#define II(a, b, c, d, x, s, ac) \ - {(a) += I ((b), (c), (d)) + (x) + (UINT4)(ac); \ - (a) = ROTATE_LEFT ((a), (s)); \ - (a) += (b); \ - } +#define PUT_64BIT_LE(cp, value) do { \ + (cp)[7] = (value) >> 56; \ + (cp)[6] = (value) >> 48; \ + (cp)[5] = (value) >> 40; \ + (cp)[4] = (value) >> 32; \ + (cp)[3] = (value) >> 24; \ + (cp)[2] = (value) >> 16; \ + (cp)[1] = (value) >> 8; \ + (cp)[0] = (value); } while (0) + +#define PUT_32BIT_LE(cp, value) do { \ + (cp)[3] = (value) >> 24; \ + (cp)[2] = (value) >> 16; \ + (cp)[1] = (value) >> 8; \ + (cp)[0] = (value); } while (0) + +static u_int8_t PADDING[MD5_BLOCK_LENGTH] = { + 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 +}; -void SG_MD5Init (SG_MD5_CTX *mdContext) +/* + * Start MD5 accumulation. Set bit count to 0 and buffer to mysterious + * initialization constants. + */ +void +SG_MD5Init(SG_MD5_CTX *ctx) { - mdContext->i[0] = mdContext->i[1] = (UINT4)0; - - /* Load magic initialization constants. - */ - mdContext->buf[0] = (UINT4)0x67452301; - mdContext->buf[1] = (UINT4)0xefcdab89; - mdContext->buf[2] = (UINT4)0x98badcfe; - mdContext->buf[3] = (UINT4)0x10325476; + ctx->count = 0; + ctx->state[0] = 0x67452301; + ctx->state[1] = 0xefcdab89; + ctx->state[2] = 0x98badcfe; + ctx->state[3] = 0x10325476; } -void SG_MD5Update (SG_MD5_CTX *mdContext, unsigned char *inBuf, unsigned int inLen) +/* + * Update context to reflect the concatenation of another buffer full + * of bytes. + */ +void +SG_MD5Update(SG_MD5_CTX *ctx, const unsigned char *input, size_t len) { - UINT4 in[16]; - int mdi; - unsigned int i, ii; - - /* compute number of bytes mod 64 */ - mdi = (int)((mdContext->i[0] >> 3) & 0x3F); - - /* update number of bits */ - if ((mdContext->i[0] + ((UINT4)inLen << 3)) < mdContext->i[0]) - mdContext->i[1]++; - mdContext->i[0] += ((UINT4)inLen << 3); - mdContext->i[1] += ((UINT4)inLen >> 29); - - while (inLen--) { - /* add new character to buffer, increment mdi */ - mdContext->in[mdi++] = *inBuf++; - - /* transform if necessary */ - if (mdi == 0x40) { - for (i = 0, ii = 0; i < 16; i++, ii += 4) - in[i] = (((UINT4)mdContext->in[ii+3]) << 24) | - (((UINT4)mdContext->in[ii+2]) << 16) | - (((UINT4)mdContext->in[ii+1]) << 8) | - ((UINT4)mdContext->in[ii]); - Transform (mdContext->buf, in); - mdi = 0; - } - } + size_t have, need; + + /* Check how many bytes we already have and how many more we need. */ + have = (size_t)((ctx->count >> 3) & (MD5_BLOCK_LENGTH - 1)); + need = MD5_BLOCK_LENGTH - have; + + /* Update bitcount */ + ctx->count += (u_int64_t)len << 3; + + if (len >= need) { + if (have != 0) { + memcpy(ctx->buffer + have, input, need); + SG_MD5Transform(ctx->state, ctx->buffer); + input += need; + len -= need; + have = 0; + } + + /* Process data in MD5_BLOCK_LENGTH-byte chunks. */ + while (len >= MD5_BLOCK_LENGTH) { + SG_MD5Transform(ctx->state, input); + input += MD5_BLOCK_LENGTH; + len -= MD5_BLOCK_LENGTH; + } + } + + /* Handle any remaining bytes of data. */ + if (len != 0) + memcpy(ctx->buffer + have, input, len); } -void SG_MD5Final (SG_MD5_CTX *mdContext) +/* + * Pad pad to 64-byte boundary with the bit pattern + * 1 0* (64-bit count of bits processed, MSB-first) + */ +void +SG_MD5Pad(SG_MD5_CTX *ctx) { - UINT4 in[16]; - int mdi; - unsigned int i, ii; - unsigned int padLen; - - /* save number of bits */ - in[14] = mdContext->i[0]; - in[15] = mdContext->i[1]; - - /* compute number of bytes mod 64 */ - mdi = (int)((mdContext->i[0] >> 3) & 0x3F); - - /* pad out to 56 mod 64 */ - padLen = (mdi < 56) ? (56 - mdi) : (120 - mdi); - SG_MD5Update (mdContext, PADDING, padLen); - - /* append length in bits and transform */ - for (i = 0, ii = 0; i < 14; i++, ii += 4) - in[i] = (((UINT4)mdContext->in[ii+3]) << 24) | - (((UINT4)mdContext->in[ii+2]) << 16) | - (((UINT4)mdContext->in[ii+1]) << 8) | - ((UINT4)mdContext->in[ii]); - Transform (mdContext->buf, in); - - /* store buffer in digest */ - for (i = 0, ii = 0; i < 4; i++, ii += 4) { - mdContext->digest[ii] = (unsigned char)(mdContext->buf[i] & 0xFF); - mdContext->digest[ii+1] = - (unsigned char)((mdContext->buf[i] >> 8) & 0xFF); - mdContext->digest[ii+2] = - (unsigned char)((mdContext->buf[i] >> 16) & 0xFF); - mdContext->digest[ii+3] = - (unsigned char)((mdContext->buf[i] >> 24) & 0xFF); - } + u_int8_t count[8]; + size_t padlen; + + /* Convert count to 8 bytes in little endian order. */ + PUT_64BIT_LE(count, ctx->count); + + /* Pad out to 56 mod 64. */ + padlen = MD5_BLOCK_LENGTH - + ((ctx->count >> 3) & (MD5_BLOCK_LENGTH - 1)); + if (padlen < 1 + 8) + padlen += MD5_BLOCK_LENGTH; + SG_MD5Update(ctx, PADDING, padlen - 8); /* padlen - 8 <= 64 */ + SG_MD5Update(ctx, count, 8); } -/* Basic MD5 step. Transform buf based on in. +/* + * Final wrapup--call MD5Pad, fill in digest and zero out ctx. */ -static void Transform (buf, in) -UINT4 *buf; -UINT4 *in; +void +SG_MD5Final(unsigned char digest[MD5_DIGEST_LENGTH], SG_MD5_CTX *ctx) { - UINT4 a = buf[0], b = buf[1], c = buf[2], d = buf[3]; - - /* Round 1 */ -#define S11 7 -#define S12 12 -#define S13 17 -#define S14 22 - FF ( a, b, c, d, in[ 0], S11, 3614090360); /* 1 */ - FF ( d, a, b, c, in[ 1], S12, 3905402710); /* 2 */ - FF ( c, d, a, b, in[ 2], S13, 606105819); /* 3 */ - FF ( b, c, d, a, in[ 3], S14, 3250441966); /* 4 */ - FF ( a, b, c, d, in[ 4], S11, 4118548399); /* 5 */ - FF ( d, a, b, c, in[ 5], S12, 1200080426); /* 6 */ - FF ( c, d, a, b, in[ 6], S13, 2821735955); /* 7 */ - FF ( b, c, d, a, in[ 7], S14, 4249261313); /* 8 */ - FF ( a, b, c, d, in[ 8], S11, 1770035416); /* 9 */ - FF ( d, a, b, c, in[ 9], S12, 2336552879); /* 10 */ - FF ( c, d, a, b, in[10], S13, 4294925233); /* 11 */ - FF ( b, c, d, a, in[11], S14, 2304563134); /* 12 */ - FF ( a, b, c, d, in[12], S11, 1804603682); /* 13 */ - FF ( d, a, b, c, in[13], S12, 4254626195); /* 14 */ - FF ( c, d, a, b, in[14], S13, 2792965006); /* 15 */ - FF ( b, c, d, a, in[15], S14, 1236535329); /* 16 */ + int i; + + SG_MD5Pad(ctx); + if (digest != NULL) { + for (i = 0; i < 4; i++) + PUT_32BIT_LE(digest + i * 4, ctx->state[i]); + memset(ctx, 0, sizeof(*ctx)); + } +} - /* Round 2 */ -#define S21 5 -#define S22 9 -#define S23 14 -#define S24 20 - GG ( a, b, c, d, in[ 1], S21, 4129170786); /* 17 */ - GG ( d, a, b, c, in[ 6], S22, 3225465664); /* 18 */ - GG ( c, d, a, b, in[11], S23, 643717713); /* 19 */ - GG ( b, c, d, a, in[ 0], S24, 3921069994); /* 20 */ - GG ( a, b, c, d, in[ 5], S21, 3593408605); /* 21 */ - GG ( d, a, b, c, in[10], S22, 38016083); /* 22 */ - GG ( c, d, a, b, in[15], S23, 3634488961); /* 23 */ - GG ( b, c, d, a, in[ 4], S24, 3889429448); /* 24 */ - GG ( a, b, c, d, in[ 9], S21, 568446438); /* 25 */ - GG ( d, a, b, c, in[14], S22, 3275163606); /* 26 */ - GG ( c, d, a, b, in[ 3], S23, 4107603335); /* 27 */ - GG ( b, c, d, a, in[ 8], S24, 1163531501); /* 28 */ - GG ( a, b, c, d, in[13], S21, 2850285829); /* 29 */ - GG ( d, a, b, c, in[ 2], S22, 4243563512); /* 30 */ - GG ( c, d, a, b, in[ 7], S23, 1735328473); /* 31 */ - GG ( b, c, d, a, in[12], S24, 2368359562); /* 32 */ - /* Round 3 */ -#define S31 4 -#define S32 11 -#define S33 16 -#define S34 23 - HH ( a, b, c, d, in[ 5], S31, 4294588738); /* 33 */ - HH ( d, a, b, c, in[ 8], S32, 2272392833); /* 34 */ - HH ( c, d, a, b, in[11], S33, 1839030562); /* 35 */ - HH ( b, c, d, a, in[14], S34, 4259657740); /* 36 */ - HH ( a, b, c, d, in[ 1], S31, 2763975236); /* 37 */ - HH ( d, a, b, c, in[ 4], S32, 1272893353); /* 38 */ - HH ( c, d, a, b, in[ 7], S33, 4139469664); /* 39 */ - HH ( b, c, d, a, in[10], S34, 3200236656); /* 40 */ - HH ( a, b, c, d, in[13], S31, 681279174); /* 41 */ - HH ( d, a, b, c, in[ 0], S32, 3936430074); /* 42 */ - HH ( c, d, a, b, in[ 3], S33, 3572445317); /* 43 */ - HH ( b, c, d, a, in[ 6], S34, 76029189); /* 44 */ - HH ( a, b, c, d, in[ 9], S31, 3654602809); /* 45 */ - HH ( d, a, b, c, in[12], S32, 3873151461); /* 46 */ - HH ( c, d, a, b, in[15], S33, 530742520); /* 47 */ - HH ( b, c, d, a, in[ 2], S34, 3299628645); /* 48 */ +/* The four core functions - F1 is optimized somewhat */ - /* Round 4 */ -#define S41 6 -#define S42 10 -#define S43 15 -#define S44 21 - II ( a, b, c, d, in[ 0], S41, 4096336452); /* 49 */ - II ( d, a, b, c, in[ 7], S42, 1126891415); /* 50 */ - II ( c, d, a, b, in[14], S43, 2878612391); /* 51 */ - II ( b, c, d, a, in[ 5], S44, 4237533241); /* 52 */ - II ( a, b, c, d, in[12], S41, 1700485571); /* 53 */ - II ( d, a, b, c, in[ 3], S42, 2399980690); /* 54 */ - II ( c, d, a, b, in[10], S43, 4293915773); /* 55 */ - II ( b, c, d, a, in[ 1], S44, 2240044497); /* 56 */ - II ( a, b, c, d, in[ 8], S41, 1873313359); /* 57 */ - II ( d, a, b, c, in[15], S42, 4264355552); /* 58 */ - II ( c, d, a, b, in[ 6], S43, 2734768916); /* 59 */ - II ( b, c, d, a, in[13], S44, 1309151649); /* 60 */ - II ( a, b, c, d, in[ 4], S41, 4149444226); /* 61 */ - II ( d, a, b, c, in[11], S42, 3174756917); /* 62 */ - II ( c, d, a, b, in[ 2], S43, 718787259); /* 63 */ - II ( b, c, d, a, in[ 9], S44, 3951481745); /* 64 */ +/* #define F1(x, y, z) (x & y | ~x & z) */ +#define F1(x, y, z) (z ^ (x & (y ^ z))) +#define F2(x, y, z) F1(z, x, y) +#define F3(x, y, z) (x ^ y ^ z) +#define F4(x, y, z) (y ^ (x | ~z)) - buf[0] += a; - buf[1] += b; - buf[2] += c; - buf[3] += d; -} +/* This is the central step in the MD5 algorithm. */ +#define MD5STEP(f, w, x, y, z, data, s) \ + ( w += f(x, y, z) + data, w = w<>(32-s), w += x ) +/* + * The core of the MD5 algorithm, this alters an existing MD5 hash to + * reflect the addition of 16 longwords of new data. MD5Update blocks + * the data and converts bytes into longwords for this routine. + */ +void +SG_MD5Transform(u_int32_t state[4], const u_int8_t block[MD5_BLOCK_LENGTH]) +{ + u_int32_t a, b, c, d, in[MD5_BLOCK_LENGTH / 4]; + +#ifndef WORDS_BIGENDIAN + memcpy(in, block, sizeof(in)); +#else + for (a = 0; a < MD5_BLOCK_LENGTH / 4; a++) { + in[a] = (u_int32_t)( + (u_int32_t)(block[a * 4 + 0]) | + (u_int32_t)(block[a * 4 + 1]) << 8 | + (u_int32_t)(block[a * 4 + 2]) << 16 | + (u_int32_t)(block[a * 4 + 3]) << 24); + } +#endif + + a = state[0]; + b = state[1]; + c = state[2]; + d = state[3]; + + MD5STEP(F1, a, b, c, d, in[ 0] + 0xd76aa478, 7); + MD5STEP(F1, d, a, b, c, in[ 1] + 0xe8c7b756, 12); + MD5STEP(F1, c, d, a, b, in[ 2] + 0x242070db, 17); + MD5STEP(F1, b, c, d, a, in[ 3] + 0xc1bdceee, 22); + MD5STEP(F1, a, b, c, d, in[ 4] + 0xf57c0faf, 7); + MD5STEP(F1, d, a, b, c, in[ 5] + 0x4787c62a, 12); + MD5STEP(F1, c, d, a, b, in[ 6] + 0xa8304613, 17); + MD5STEP(F1, b, c, d, a, in[ 7] + 0xfd469501, 22); + MD5STEP(F1, a, b, c, d, in[ 8] + 0x698098d8, 7); + MD5STEP(F1, d, a, b, c, in[ 9] + 0x8b44f7af, 12); + MD5STEP(F1, c, d, a, b, in[10] + 0xffff5bb1, 17); + MD5STEP(F1, b, c, d, a, in[11] + 0x895cd7be, 22); + MD5STEP(F1, a, b, c, d, in[12] + 0x6b901122, 7); + MD5STEP(F1, d, a, b, c, in[13] + 0xfd987193, 12); + MD5STEP(F1, c, d, a, b, in[14] + 0xa679438e, 17); + MD5STEP(F1, b, c, d, a, in[15] + 0x49b40821, 22); + + MD5STEP(F2, a, b, c, d, in[ 1] + 0xf61e2562, 5); + MD5STEP(F2, d, a, b, c, in[ 6] + 0xc040b340, 9); + MD5STEP(F2, c, d, a, b, in[11] + 0x265e5a51, 14); + MD5STEP(F2, b, c, d, a, in[ 0] + 0xe9b6c7aa, 20); + MD5STEP(F2, a, b, c, d, in[ 5] + 0xd62f105d, 5); + MD5STEP(F2, d, a, b, c, in[10] + 0x02441453, 9); + MD5STEP(F2, c, d, a, b, in[15] + 0xd8a1e681, 14); + MD5STEP(F2, b, c, d, a, in[ 4] + 0xe7d3fbc8, 20); + MD5STEP(F2, a, b, c, d, in[ 9] + 0x21e1cde6, 5); + MD5STEP(F2, d, a, b, c, in[14] + 0xc33707d6, 9); + MD5STEP(F2, c, d, a, b, in[ 3] + 0xf4d50d87, 14); + MD5STEP(F2, b, c, d, a, in[ 8] + 0x455a14ed, 20); + MD5STEP(F2, a, b, c, d, in[13] + 0xa9e3e905, 5); + MD5STEP(F2, d, a, b, c, in[ 2] + 0xfcefa3f8, 9); + MD5STEP(F2, c, d, a, b, in[ 7] + 0x676f02d9, 14); + MD5STEP(F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20); + + MD5STEP(F3, a, b, c, d, in[ 5] + 0xfffa3942, 4); + MD5STEP(F3, d, a, b, c, in[ 8] + 0x8771f681, 11); + MD5STEP(F3, c, d, a, b, in[11] + 0x6d9d6122, 16); + MD5STEP(F3, b, c, d, a, in[14] + 0xfde5380c, 23); + MD5STEP(F3, a, b, c, d, in[ 1] + 0xa4beea44, 4); + MD5STEP(F3, d, a, b, c, in[ 4] + 0x4bdecfa9, 11); + MD5STEP(F3, c, d, a, b, in[ 7] + 0xf6bb4b60, 16); + MD5STEP(F3, b, c, d, a, in[10] + 0xbebfbc70, 23); + MD5STEP(F3, a, b, c, d, in[13] + 0x289b7ec6, 4); + MD5STEP(F3, d, a, b, c, in[ 0] + 0xeaa127fa, 11); + MD5STEP(F3, c, d, a, b, in[ 3] + 0xd4ef3085, 16); + MD5STEP(F3, b, c, d, a, in[ 6] + 0x04881d05, 23); + MD5STEP(F3, a, b, c, d, in[ 9] + 0xd9d4d039, 4); + MD5STEP(F3, d, a, b, c, in[12] + 0xe6db99e5, 11); + MD5STEP(F3, c, d, a, b, in[15] + 0x1fa27cf8, 16); + MD5STEP(F3, b, c, d, a, in[2 ] + 0xc4ac5665, 23); + + MD5STEP(F4, a, b, c, d, in[ 0] + 0xf4292244, 6); + MD5STEP(F4, d, a, b, c, in[7 ] + 0x432aff97, 10); + MD5STEP(F4, c, d, a, b, in[14] + 0xab9423a7, 15); + MD5STEP(F4, b, c, d, a, in[5 ] + 0xfc93a039, 21); + MD5STEP(F4, a, b, c, d, in[12] + 0x655b59c3, 6); + MD5STEP(F4, d, a, b, c, in[3 ] + 0x8f0ccc92, 10); + MD5STEP(F4, c, d, a, b, in[10] + 0xffeff47d, 15); + MD5STEP(F4, b, c, d, a, in[1 ] + 0x85845dd1, 21); + MD5STEP(F4, a, b, c, d, in[8 ] + 0x6fa87e4f, 6); + MD5STEP(F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10); + MD5STEP(F4, c, d, a, b, in[6 ] + 0xa3014314, 15); + MD5STEP(F4, b, c, d, a, in[13] + 0x4e0811a1, 21); + MD5STEP(F4, a, b, c, d, in[4 ] + 0xf7537e82, 6); + MD5STEP(F4, d, a, b, c, in[11] + 0xbd3af235, 10); + MD5STEP(F4, c, d, a, b, in[2 ] + 0x2ad7d2bb, 15); + MD5STEP(F4, b, c, d, a, in[9 ] + 0xeb86d391, 21); + + state[0] += a; + state[1] += b; + state[2] += c; + state[3] += d; +} \ No newline at end of file diff --git a/simgear/package/md5.h b/simgear/package/md5.h index d1823da9..0c157367 100644 --- a/simgear/package/md5.h +++ b/simgear/package/md5.h @@ -1,68 +1,46 @@ -#ifndef SG_PACKAGE_MD5_H -#define SG_PACKAGE_MD5_H + /* $OpenBSD: md5.h,v 1.15 2004/05/03 17:30:14 millert Exp $ */ /* - ********************************************************************** - ** md5.h -- Header file for implementation of MD5 ** - ** RSA Data Security, Inc. MD5 Message Digest Algorithm ** - ** Created: 2/17/90 RLR ** - ** Revised: 12/27/90 SRD,AJ,BSK,JT Reference C version ** - ** Revised (for MD5): RLR 4/27/91 ** - ** -- G modified to have y&~z instead of y&z ** - ** -- FF, GG, HH modified to add in last register done ** - ** -- Access pattern: round 2 works mod 5, round 3 works mod 3 ** - ** -- distinct additive constant for each step ** - ** -- round 4 added, working mod 7 ** - ********************************************************************** + * This code implements the MD5 message-digest algorithm. + * The algorithm is due to Ron Rivest. This code was + * written by Colin Plumb in 1993, no copyright is claimed. + * This code is in the public domain; do with it what you wish. + * + * Equivalent code is available from RSA Data Security, Inc. + * This code has been tested against that, and is equivalent, + * except that you don't need to include two pages of legalese + * with every copy. */ -/* - ********************************************************************** - ** Copyright (C) 1990, RSA Data Security, Inc. All rights reserved. ** - ** ** - ** License to copy and use this software is granted provided that ** - ** it is identified as the "RSA Data Security, Inc. MD5 Message ** - ** Digest Algorithm" in all material mentioning or referencing this ** - ** software or this function. ** - ** ** - ** License is also granted to make and use derivative works ** - ** provided that such works are identified as "derived from the RSA ** - ** Data Security, Inc. MD5 Message Digest Algorithm" in all ** - ** material mentioning or referencing the derived work. ** - ** ** - ** RSA Data Security, Inc. makes no representations concerning ** - ** either the merchantability of this software or the suitability ** - ** of this software for any particular purpose. It is provided "as ** - ** is" without express or implied warranty of any kind. ** - ** ** - ** These notices must be retained in any copies of any part of this ** - ** documentation and/or software. ** - ********************************************************************** - */ +#ifndef _MD5_H_ +#define _MD5_H_ #ifdef __cplusplus extern "C" { #endif -/* typedef a 32 bit type */ -typedef unsigned int UINT4; +#define MD5_BLOCK_LENGTH 64 +#define MD5_DIGEST_LENGTH 16 +#define MD5_DIGEST_STRING_LENGTH (MD5_DIGEST_LENGTH * 2 + 1) -/* Data structure for MD5 (Message Digest) computation */ -typedef struct { - UINT4 i[2]; /* number of _bits_ handled mod 2^64 */ - UINT4 buf[4]; /* scratch buffer */ - unsigned char in[64]; /* input buffer */ - unsigned char digest[16]; /* actual digest after MD5Final call */ +typedef struct MD5Context { + u_int32_t state[4]; /* state */ + u_int64_t count; /* number of bits, mod 2^64 */ + u_int8_t buffer[MD5_BLOCK_LENGTH]; /* input buffer */ } SG_MD5_CTX; -void SG_MD5Init (SG_MD5_CTX *mdContext); -void SG_MD5Update (SG_MD5_CTX *mdContext, unsigned char *inBuf, unsigned int inLen); -void SG_MD5Final (SG_MD5_CTX *mdContext); +void SG_MD5Init(SG_MD5_CTX *); +void SG_MD5Update(SG_MD5_CTX *, const u_int8_t *, size_t); +void SG_MD5Pad(SG_MD5_CTX *); +void SG_MD5Final(u_int8_t [MD5_DIGEST_LENGTH], SG_MD5_CTX *); +void SG_MD5Transform(u_int32_t [4], const u_int8_t [MD5_BLOCK_LENGTH]); #ifdef __cplusplus } // of extern C #endif + +#endif /* _MD5_H_ */ + -#endif // of SG_PACKAGE_MD5_H \ No newline at end of file