1233d2500723e5594f3e7c70896ffeeef32b9c950ywan/* 2233d2500723e5594f3e7c70896ffeeef32b9c950ywan * This code implements the MD5 message-digest algorithm. 3233d2500723e5594f3e7c70896ffeeef32b9c950ywan * The algorithm is due to Ron Rivest. This code was 4233d2500723e5594f3e7c70896ffeeef32b9c950ywan * written by Colin Plumb in 1993, no copyright is claimed. 5233d2500723e5594f3e7c70896ffeeef32b9c950ywan * This code is in the public domain; do with it what you wish. 6233d2500723e5594f3e7c70896ffeeef32b9c950ywan * 7233d2500723e5594f3e7c70896ffeeef32b9c950ywan * Equivalent code is available from RSA Data Security, Inc. 8233d2500723e5594f3e7c70896ffeeef32b9c950ywan * This code has been tested against that, and is equivalent, 9233d2500723e5594f3e7c70896ffeeef32b9c950ywan * except that you don't need to include two pages of legalese 10233d2500723e5594f3e7c70896ffeeef32b9c950ywan * with every copy. 11233d2500723e5594f3e7c70896ffeeef32b9c950ywan * 12233d2500723e5594f3e7c70896ffeeef32b9c950ywan * To compute the message digest of a chunk of bytes, declare an 13233d2500723e5594f3e7c70896ffeeef32b9c950ywan * MD5Context structure, pass it to MD5Init, call MD5Update as 14233d2500723e5594f3e7c70896ffeeef32b9c950ywan * needed on buffers full of bytes, and then call MD5Final, which 15233d2500723e5594f3e7c70896ffeeef32b9c950ywan * will fill a supplied 16-byte array with the digest. 16233d2500723e5594f3e7c70896ffeeef32b9c950ywan * 17233d2500723e5594f3e7c70896ffeeef32b9c950ywan * Changed so as no longer to depend on Colin Plumb's `usual.h' header 18233d2500723e5594f3e7c70896ffeeef32b9c950ywan * definitions 19233d2500723e5594f3e7c70896ffeeef32b9c950ywan * - Ian Jackson <ian@chiark.greenend.org.uk>. 20233d2500723e5594f3e7c70896ffeeef32b9c950ywan * Still in the public domain. 21233d2500723e5594f3e7c70896ffeeef32b9c950ywan */ 22233d2500723e5594f3e7c70896ffeeef32b9c950ywan 23233d2500723e5594f3e7c70896ffeeef32b9c950ywan#include <string.h> /* for memcpy() */ 24233d2500723e5594f3e7c70896ffeeef32b9c950ywan 25233d2500723e5594f3e7c70896ffeeef32b9c950ywan#include "md5_utils.h" 26233d2500723e5594f3e7c70896ffeeef32b9c950ywan 27233d2500723e5594f3e7c70896ffeeef32b9c950ywanvoid 28233d2500723e5594f3e7c70896ffeeef32b9c950ywanbyteSwap(UWORD32 *buf, unsigned words) { 29233d2500723e5594f3e7c70896ffeeef32b9c950ywan md5byte *p; 30233d2500723e5594f3e7c70896ffeeef32b9c950ywan 31233d2500723e5594f3e7c70896ffeeef32b9c950ywan /* Only swap bytes for big endian machines */ 32233d2500723e5594f3e7c70896ffeeef32b9c950ywan int i = 1; 33233d2500723e5594f3e7c70896ffeeef32b9c950ywan 34233d2500723e5594f3e7c70896ffeeef32b9c950ywan if (*(char *)&i == 1) 35233d2500723e5594f3e7c70896ffeeef32b9c950ywan return; 36233d2500723e5594f3e7c70896ffeeef32b9c950ywan 37233d2500723e5594f3e7c70896ffeeef32b9c950ywan p = (md5byte *)buf; 38233d2500723e5594f3e7c70896ffeeef32b9c950ywan 39233d2500723e5594f3e7c70896ffeeef32b9c950ywan do { 40233d2500723e5594f3e7c70896ffeeef32b9c950ywan *buf++ = (UWORD32)((unsigned)p[3] << 8 | p[2]) << 16 | 41233d2500723e5594f3e7c70896ffeeef32b9c950ywan ((unsigned)p[1] << 8 | p[0]); 42233d2500723e5594f3e7c70896ffeeef32b9c950ywan p += 4; 43233d2500723e5594f3e7c70896ffeeef32b9c950ywan } while (--words); 44233d2500723e5594f3e7c70896ffeeef32b9c950ywan} 45233d2500723e5594f3e7c70896ffeeef32b9c950ywan 46233d2500723e5594f3e7c70896ffeeef32b9c950ywan/* 47233d2500723e5594f3e7c70896ffeeef32b9c950ywan * Start MD5 accumulation. Set bit count to 0 and buffer to mysterious 48233d2500723e5594f3e7c70896ffeeef32b9c950ywan * initialization constants. 49233d2500723e5594f3e7c70896ffeeef32b9c950ywan */ 50233d2500723e5594f3e7c70896ffeeef32b9c950ywanvoid 51233d2500723e5594f3e7c70896ffeeef32b9c950ywanMD5Init(struct MD5Context *ctx) { 52233d2500723e5594f3e7c70896ffeeef32b9c950ywan ctx->buf[0] = 0x67452301; 53233d2500723e5594f3e7c70896ffeeef32b9c950ywan ctx->buf[1] = 0xefcdab89; 54233d2500723e5594f3e7c70896ffeeef32b9c950ywan ctx->buf[2] = 0x98badcfe; 55233d2500723e5594f3e7c70896ffeeef32b9c950ywan ctx->buf[3] = 0x10325476; 56233d2500723e5594f3e7c70896ffeeef32b9c950ywan 57233d2500723e5594f3e7c70896ffeeef32b9c950ywan ctx->bytes[0] = 0; 58233d2500723e5594f3e7c70896ffeeef32b9c950ywan ctx->bytes[1] = 0; 59233d2500723e5594f3e7c70896ffeeef32b9c950ywan} 60233d2500723e5594f3e7c70896ffeeef32b9c950ywan 61233d2500723e5594f3e7c70896ffeeef32b9c950ywan/* 62233d2500723e5594f3e7c70896ffeeef32b9c950ywan * Update context to reflect the concatenation of another buffer full 63233d2500723e5594f3e7c70896ffeeef32b9c950ywan * of bytes. 64233d2500723e5594f3e7c70896ffeeef32b9c950ywan */ 65233d2500723e5594f3e7c70896ffeeef32b9c950ywanvoid 66233d2500723e5594f3e7c70896ffeeef32b9c950ywanMD5Update(struct MD5Context *ctx, md5byte const *buf, unsigned len) { 67233d2500723e5594f3e7c70896ffeeef32b9c950ywan UWORD32 t; 68233d2500723e5594f3e7c70896ffeeef32b9c950ywan 69233d2500723e5594f3e7c70896ffeeef32b9c950ywan /* Update byte count */ 70233d2500723e5594f3e7c70896ffeeef32b9c950ywan 71233d2500723e5594f3e7c70896ffeeef32b9c950ywan t = ctx->bytes[0]; 72233d2500723e5594f3e7c70896ffeeef32b9c950ywan 73233d2500723e5594f3e7c70896ffeeef32b9c950ywan if ((ctx->bytes[0] = t + len) < t) 74233d2500723e5594f3e7c70896ffeeef32b9c950ywan ctx->bytes[1]++; /* Carry from low to high */ 75233d2500723e5594f3e7c70896ffeeef32b9c950ywan 76233d2500723e5594f3e7c70896ffeeef32b9c950ywan t = 64 - (t & 0x3f); /* Space available in ctx->in (at least 1) */ 77233d2500723e5594f3e7c70896ffeeef32b9c950ywan 78233d2500723e5594f3e7c70896ffeeef32b9c950ywan if (t > len) { 79233d2500723e5594f3e7c70896ffeeef32b9c950ywan memcpy((md5byte *)ctx->in + 64 - t, buf, len); 80233d2500723e5594f3e7c70896ffeeef32b9c950ywan return; 81233d2500723e5594f3e7c70896ffeeef32b9c950ywan } 82233d2500723e5594f3e7c70896ffeeef32b9c950ywan 83233d2500723e5594f3e7c70896ffeeef32b9c950ywan /* First chunk is an odd size */ 84233d2500723e5594f3e7c70896ffeeef32b9c950ywan memcpy((md5byte *)ctx->in + 64 - t, buf, t); 85233d2500723e5594f3e7c70896ffeeef32b9c950ywan byteSwap(ctx->in, 16); 86233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5Transform(ctx->buf, ctx->in); 87233d2500723e5594f3e7c70896ffeeef32b9c950ywan buf += t; 88233d2500723e5594f3e7c70896ffeeef32b9c950ywan len -= t; 89233d2500723e5594f3e7c70896ffeeef32b9c950ywan 90233d2500723e5594f3e7c70896ffeeef32b9c950ywan /* Process data in 64-byte chunks */ 91233d2500723e5594f3e7c70896ffeeef32b9c950ywan while (len >= 64) { 92233d2500723e5594f3e7c70896ffeeef32b9c950ywan memcpy(ctx->in, buf, 64); 93233d2500723e5594f3e7c70896ffeeef32b9c950ywan byteSwap(ctx->in, 16); 94233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5Transform(ctx->buf, ctx->in); 95233d2500723e5594f3e7c70896ffeeef32b9c950ywan buf += 64; 96233d2500723e5594f3e7c70896ffeeef32b9c950ywan len -= 64; 97233d2500723e5594f3e7c70896ffeeef32b9c950ywan } 98233d2500723e5594f3e7c70896ffeeef32b9c950ywan 99233d2500723e5594f3e7c70896ffeeef32b9c950ywan /* Handle any remaining bytes of data. */ 100233d2500723e5594f3e7c70896ffeeef32b9c950ywan memcpy(ctx->in, buf, len); 101233d2500723e5594f3e7c70896ffeeef32b9c950ywan} 102233d2500723e5594f3e7c70896ffeeef32b9c950ywan 103233d2500723e5594f3e7c70896ffeeef32b9c950ywan/* 104233d2500723e5594f3e7c70896ffeeef32b9c950ywan * Final wrapup - pad to 64-byte boundary with the bit pattern 105233d2500723e5594f3e7c70896ffeeef32b9c950ywan * 1 0* (64-bit count of bits processed, MSB-first) 106233d2500723e5594f3e7c70896ffeeef32b9c950ywan */ 107233d2500723e5594f3e7c70896ffeeef32b9c950ywanvoid 108233d2500723e5594f3e7c70896ffeeef32b9c950ywanMD5Final(md5byte digest[16], struct MD5Context *ctx) { 109233d2500723e5594f3e7c70896ffeeef32b9c950ywan int count = ctx->bytes[0] & 0x3f; /* Number of bytes in ctx->in */ 110233d2500723e5594f3e7c70896ffeeef32b9c950ywan md5byte *p = (md5byte *)ctx->in + count; 111233d2500723e5594f3e7c70896ffeeef32b9c950ywan 112233d2500723e5594f3e7c70896ffeeef32b9c950ywan /* Set the first char of padding to 0x80. There is always room. */ 113233d2500723e5594f3e7c70896ffeeef32b9c950ywan *p++ = 0x80; 114233d2500723e5594f3e7c70896ffeeef32b9c950ywan 115233d2500723e5594f3e7c70896ffeeef32b9c950ywan /* Bytes of padding needed to make 56 bytes (-8..55) */ 116233d2500723e5594f3e7c70896ffeeef32b9c950ywan count = 56 - 1 - count; 117233d2500723e5594f3e7c70896ffeeef32b9c950ywan 118233d2500723e5594f3e7c70896ffeeef32b9c950ywan if (count < 0) { /* Padding forces an extra block */ 119233d2500723e5594f3e7c70896ffeeef32b9c950ywan memset(p, 0, count + 8); 120233d2500723e5594f3e7c70896ffeeef32b9c950ywan byteSwap(ctx->in, 16); 121233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5Transform(ctx->buf, ctx->in); 122233d2500723e5594f3e7c70896ffeeef32b9c950ywan p = (md5byte *)ctx->in; 123233d2500723e5594f3e7c70896ffeeef32b9c950ywan count = 56; 124233d2500723e5594f3e7c70896ffeeef32b9c950ywan } 125233d2500723e5594f3e7c70896ffeeef32b9c950ywan 126233d2500723e5594f3e7c70896ffeeef32b9c950ywan memset(p, 0, count); 127233d2500723e5594f3e7c70896ffeeef32b9c950ywan byteSwap(ctx->in, 14); 128233d2500723e5594f3e7c70896ffeeef32b9c950ywan 129233d2500723e5594f3e7c70896ffeeef32b9c950ywan /* Append length in bits and transform */ 130233d2500723e5594f3e7c70896ffeeef32b9c950ywan ctx->in[14] = ctx->bytes[0] << 3; 131233d2500723e5594f3e7c70896ffeeef32b9c950ywan ctx->in[15] = ctx->bytes[1] << 3 | ctx->bytes[0] >> 29; 132233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5Transform(ctx->buf, ctx->in); 133233d2500723e5594f3e7c70896ffeeef32b9c950ywan 134233d2500723e5594f3e7c70896ffeeef32b9c950ywan byteSwap(ctx->buf, 4); 135233d2500723e5594f3e7c70896ffeeef32b9c950ywan memcpy(digest, ctx->buf, 16); 136233d2500723e5594f3e7c70896ffeeef32b9c950ywan memset(ctx, 0, sizeof(*ctx)); /* In case it's sensitive */ 137233d2500723e5594f3e7c70896ffeeef32b9c950ywan} 138233d2500723e5594f3e7c70896ffeeef32b9c950ywan 139233d2500723e5594f3e7c70896ffeeef32b9c950ywan#ifndef ASM_MD5 140233d2500723e5594f3e7c70896ffeeef32b9c950ywan 141233d2500723e5594f3e7c70896ffeeef32b9c950ywan/* The four core functions - F1 is optimized somewhat */ 142233d2500723e5594f3e7c70896ffeeef32b9c950ywan 143233d2500723e5594f3e7c70896ffeeef32b9c950ywan/* #define F1(x, y, z) (x & y | ~x & z) */ 144233d2500723e5594f3e7c70896ffeeef32b9c950ywan#define F1(x, y, z) (z ^ (x & (y ^ z))) 145233d2500723e5594f3e7c70896ffeeef32b9c950ywan#define F2(x, y, z) F1(z, x, y) 146233d2500723e5594f3e7c70896ffeeef32b9c950ywan#define F3(x, y, z) (x ^ y ^ z) 147233d2500723e5594f3e7c70896ffeeef32b9c950ywan#define F4(x, y, z) (y ^ (x | ~z)) 148233d2500723e5594f3e7c70896ffeeef32b9c950ywan 149233d2500723e5594f3e7c70896ffeeef32b9c950ywan/* This is the central step in the MD5 algorithm. */ 150233d2500723e5594f3e7c70896ffeeef32b9c950ywan#define MD5STEP(f,w,x,y,z,in,s) \ 151233d2500723e5594f3e7c70896ffeeef32b9c950ywan (w += f(x,y,z) + in, w = (w<<s | w>>(32-s)) + x) 152233d2500723e5594f3e7c70896ffeeef32b9c950ywan 153233d2500723e5594f3e7c70896ffeeef32b9c950ywan/* 154233d2500723e5594f3e7c70896ffeeef32b9c950ywan * The core of the MD5 algorithm, this alters an existing MD5 hash to 155233d2500723e5594f3e7c70896ffeeef32b9c950ywan * reflect the addition of 16 longwords of new data. MD5Update blocks 156233d2500723e5594f3e7c70896ffeeef32b9c950ywan * the data and converts bytes into longwords for this routine. 157233d2500723e5594f3e7c70896ffeeef32b9c950ywan */ 158233d2500723e5594f3e7c70896ffeeef32b9c950ywanvoid 159233d2500723e5594f3e7c70896ffeeef32b9c950ywanMD5Transform(UWORD32 buf[4], UWORD32 const in[16]) { 160233d2500723e5594f3e7c70896ffeeef32b9c950ywan register UWORD32 a, b, c, d; 161233d2500723e5594f3e7c70896ffeeef32b9c950ywan 162233d2500723e5594f3e7c70896ffeeef32b9c950ywan a = buf[0]; 163233d2500723e5594f3e7c70896ffeeef32b9c950ywan b = buf[1]; 164233d2500723e5594f3e7c70896ffeeef32b9c950ywan c = buf[2]; 165233d2500723e5594f3e7c70896ffeeef32b9c950ywan d = buf[3]; 166233d2500723e5594f3e7c70896ffeeef32b9c950ywan 167233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F1, a, b, c, d, in[0] + 0xd76aa478, 7); 168233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F1, d, a, b, c, in[1] + 0xe8c7b756, 12); 169233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F1, c, d, a, b, in[2] + 0x242070db, 17); 170233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F1, b, c, d, a, in[3] + 0xc1bdceee, 22); 171233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F1, a, b, c, d, in[4] + 0xf57c0faf, 7); 172233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F1, d, a, b, c, in[5] + 0x4787c62a, 12); 173233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F1, c, d, a, b, in[6] + 0xa8304613, 17); 174233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F1, b, c, d, a, in[7] + 0xfd469501, 22); 175233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F1, a, b, c, d, in[8] + 0x698098d8, 7); 176233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F1, d, a, b, c, in[9] + 0x8b44f7af, 12); 177233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F1, c, d, a, b, in[10] + 0xffff5bb1, 17); 178233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F1, b, c, d, a, in[11] + 0x895cd7be, 22); 179233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F1, a, b, c, d, in[12] + 0x6b901122, 7); 180233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F1, d, a, b, c, in[13] + 0xfd987193, 12); 181233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F1, c, d, a, b, in[14] + 0xa679438e, 17); 182233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F1, b, c, d, a, in[15] + 0x49b40821, 22); 183233d2500723e5594f3e7c70896ffeeef32b9c950ywan 184233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F2, a, b, c, d, in[1] + 0xf61e2562, 5); 185233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F2, d, a, b, c, in[6] + 0xc040b340, 9); 186233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F2, c, d, a, b, in[11] + 0x265e5a51, 14); 187233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20); 188233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F2, a, b, c, d, in[5] + 0xd62f105d, 5); 189233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F2, d, a, b, c, in[10] + 0x02441453, 9); 190233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F2, c, d, a, b, in[15] + 0xd8a1e681, 14); 191233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20); 192233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F2, a, b, c, d, in[9] + 0x21e1cde6, 5); 193233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F2, d, a, b, c, in[14] + 0xc33707d6, 9); 194233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F2, c, d, a, b, in[3] + 0xf4d50d87, 14); 195233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F2, b, c, d, a, in[8] + 0x455a14ed, 20); 196233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F2, a, b, c, d, in[13] + 0xa9e3e905, 5); 197233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F2, d, a, b, c, in[2] + 0xfcefa3f8, 9); 198233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F2, c, d, a, b, in[7] + 0x676f02d9, 14); 199233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20); 200233d2500723e5594f3e7c70896ffeeef32b9c950ywan 201233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F3, a, b, c, d, in[5] + 0xfffa3942, 4); 202233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F3, d, a, b, c, in[8] + 0x8771f681, 11); 203233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F3, c, d, a, b, in[11] + 0x6d9d6122, 16); 204233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F3, b, c, d, a, in[14] + 0xfde5380c, 23); 205233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F3, a, b, c, d, in[1] + 0xa4beea44, 4); 206233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F3, d, a, b, c, in[4] + 0x4bdecfa9, 11); 207233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F3, c, d, a, b, in[7] + 0xf6bb4b60, 16); 208233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F3, b, c, d, a, in[10] + 0xbebfbc70, 23); 209233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F3, a, b, c, d, in[13] + 0x289b7ec6, 4); 210233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F3, d, a, b, c, in[0] + 0xeaa127fa, 11); 211233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F3, c, d, a, b, in[3] + 0xd4ef3085, 16); 212233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F3, b, c, d, a, in[6] + 0x04881d05, 23); 213233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F3, a, b, c, d, in[9] + 0xd9d4d039, 4); 214233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F3, d, a, b, c, in[12] + 0xe6db99e5, 11); 215233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F3, c, d, a, b, in[15] + 0x1fa27cf8, 16); 216233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F3, b, c, d, a, in[2] + 0xc4ac5665, 23); 217233d2500723e5594f3e7c70896ffeeef32b9c950ywan 218233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F4, a, b, c, d, in[0] + 0xf4292244, 6); 219233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F4, d, a, b, c, in[7] + 0x432aff97, 10); 220233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F4, c, d, a, b, in[14] + 0xab9423a7, 15); 221233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F4, b, c, d, a, in[5] + 0xfc93a039, 21); 222233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F4, a, b, c, d, in[12] + 0x655b59c3, 6); 223233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F4, d, a, b, c, in[3] + 0x8f0ccc92, 10); 224233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F4, c, d, a, b, in[10] + 0xffeff47d, 15); 225233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F4, b, c, d, a, in[1] + 0x85845dd1, 21); 226233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F4, a, b, c, d, in[8] + 0x6fa87e4f, 6); 227233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10); 228233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F4, c, d, a, b, in[6] + 0xa3014314, 15); 229233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F4, b, c, d, a, in[13] + 0x4e0811a1, 21); 230233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F4, a, b, c, d, in[4] + 0xf7537e82, 6); 231233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F4, d, a, b, c, in[11] + 0xbd3af235, 10); 232233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15); 233233d2500723e5594f3e7c70896ffeeef32b9c950ywan MD5STEP(F4, b, c, d, a, in[9] + 0xeb86d391, 21); 234233d2500723e5594f3e7c70896ffeeef32b9c950ywan 235233d2500723e5594f3e7c70896ffeeef32b9c950ywan buf[0] += a; 236233d2500723e5594f3e7c70896ffeeef32b9c950ywan buf[1] += b; 237233d2500723e5594f3e7c70896ffeeef32b9c950ywan buf[2] += c; 238233d2500723e5594f3e7c70896ffeeef32b9c950ywan buf[3] += d; 239233d2500723e5594f3e7c70896ffeeef32b9c950ywan} 240233d2500723e5594f3e7c70896ffeeef32b9c950ywan 241233d2500723e5594f3e7c70896ffeeef32b9c950ywan#endif 242