18faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel/* 28faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel * written by Colin Plumb in 1993, no copyright is claimed. 38faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel * This code is in the public domain; do with it what you wish. 48faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel * 58faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel * Equivalent code is available from RSA Data Security, Inc. 68faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel * This code has been tested against that, and is equivalent, 78faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel * except that you don't need to include two pages of legalese 88faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel * with every copy. 98faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel * 108faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel * To compute the message digest of a chunk of bytes, declare an 118faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel * MD5Context structure, pass it to MD5Init, call MD5Update as 128faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel * needed on buffers full of bytes, and then call MD5Final, which 138faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel * will fill a supplied 16-byte array with the digest. 148faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel */ 158faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel 168faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel#include <string.h> 178faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel 188faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel#include "md5.h" 198faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel 208faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel#ifndef WORDS_BIGENDIAN 218faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel#define byteReverse(buf, len) /* Nothing */ 228faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel#else 238faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel/* 248faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel * Note: this code is harmless on little-endian machines. 258faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel */ 268faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedelstatic void byteReverse(unsigned char *buf, unsigned longs) 278faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel{ 288faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel u32 t; 298faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel do { 308faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel t = (u32) ((unsigned) buf[3] << 8 | buf[2]) << 16 | 318faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel ((unsigned) buf[1] << 8 | buf[0]); 328faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel *(u32 *) buf = t; 338faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel buf += 4; 348faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel } while (--longs); 358faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel} 368faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel#endif 378faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel 388faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedelstatic void MD5Transform(u32 buf[4], u32 const in[16]); 398faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel 408faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel/* 418faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel * Start MD5 accumulation. Set bit count to 0 and buffer to mysterious 428faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel * initialization constants. 438faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel */ 448faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedelvoid MD5Init(struct MD5Context *ctx) 458faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel{ 468faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel ctx->buf[0] = 0x67452301; 478faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel ctx->buf[1] = 0xefcdab89; 488faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel ctx->buf[2] = 0x98badcfe; 498faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel ctx->buf[3] = 0x10325476; 508faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel 518faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel ctx->bits[0] = 0; 528faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel ctx->bits[1] = 0; 538faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel} 548faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel 558faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel/* 568faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel * Update context to reflect the concatenation of another buffer full 578faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel * of bytes. 588faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel */ 598faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedelvoid MD5Update(struct MD5Context *ctx, unsigned char const *buf, unsigned len) 608faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel{ 618faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel u32 t; 628faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel 638faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel /* Update bitcount */ 648faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel 658faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel t = ctx->bits[0]; 668faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel if ((ctx->bits[0] = t + ((u32) len << 3)) < t) 678faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel ctx->bits[1]++; /* Carry from low to high */ 688faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel ctx->bits[1] += len >> 29; 698faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel 708faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel t = (t >> 3) & 0x3f; /* Bytes already in shsInfo->data */ 718faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel 728faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel /* Handle any leading odd-sized chunks */ 738faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel 748faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel if (t) { 758faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel unsigned char *p = (unsigned char *) ctx->in + t; 768faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel 778faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel t = 64 - t; 788faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel if (len < t) { 798faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel memcpy(p, buf, len); 808faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel return; 818faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel } 828faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel memcpy(p, buf, t); 838faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel byteReverse(ctx->in, 16); 848faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5Transform(ctx->buf, (u32 *) ctx->in); 858faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel buf += t; 868faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel len -= t; 878faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel } 888faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel /* Process data in 64-byte chunks */ 898faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel 908faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel while (len >= 64) { 918faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel memcpy(ctx->in, buf, 64); 928faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel byteReverse(ctx->in, 16); 938faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5Transform(ctx->buf, (u32 *) ctx->in); 948faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel buf += 64; 958faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel len -= 64; 968faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel } 978faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel 988faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel /* Handle any remaining bytes of data. */ 998faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel 1008faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel memcpy(ctx->in, buf, len); 1018faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel} 1028faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel 1038faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel/* 1048faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel * Final wrapup - pad to 64-byte boundary with the bit pattern 1058faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel * 1 0* (64-bit count of bits processed, MSB-first) 1068faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel */ 1078faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedelvoid MD5Final(unsigned char digest[16], struct MD5Context *ctx) 1088faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel{ 1098faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel unsigned count; 1108faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel unsigned char *p; 1118faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel 1128faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel /* Compute number of bytes mod 64 */ 1138faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel count = (ctx->bits[0] >> 3) & 0x3F; 1148faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel 1158faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel /* Set the first char of padding to 0x80. This is safe since there is 1168faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel always at least one byte free */ 1178faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel p = ctx->in + count; 1188faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel *p++ = 0x80; 1198faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel 1208faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel /* Bytes of padding needed to make 64 bytes */ 1218faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel count = 64 - 1 - count; 1228faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel 1238faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel /* Pad out to 56 mod 64 */ 1248faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel if (count < 8) { 1258faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel /* Two lots of padding: Pad the first block to 64 bytes */ 1268faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel memset(p, 0, count); 1278faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel byteReverse(ctx->in, 16); 1288faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5Transform(ctx->buf, (u32 *) ctx->in); 1298faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel 1308faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel /* Now fill the next block with 56 bytes */ 1318faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel memset(ctx->in, 0, 56); 1328faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel } else { 1338faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel /* Pad block to 56 bytes */ 1348faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel memset(p, 0, count - 8); 1358faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel } 1368faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel byteReverse(ctx->in, 14); 1378faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel 1388faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel /* Append length in bits and transform */ 1398faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel ((u32 *) ctx->in)[14] = ctx->bits[0]; 1408faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel ((u32 *) ctx->in)[15] = ctx->bits[1]; 1418faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel 1428faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5Transform(ctx->buf, (u32 *) ctx->in); 1438faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel byteReverse((unsigned char *) ctx->buf, 4); 1448faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel memcpy(digest, ctx->buf, 16); 1459c740008e87756445444ea3542c105a631a60cefHan Shen memset(ctx, 0, sizeof(*ctx)); /* In case it's sensitive */ 1468faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel} 1478faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel 1488faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel/* The four core functions - F1 is optimized somewhat */ 1498faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel 1508faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel/* #define F1(x, y, z) (x & y | ~x & z) */ 1518faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel#define F1(x, y, z) (z ^ (x & (y ^ z))) 1528faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel#define F2(x, y, z) F1(z, x, y) 1538faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel#define F3(x, y, z) (x ^ y ^ z) 1548faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel#define F4(x, y, z) (y ^ (x | ~z)) 1558faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel 1568faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel/* This is the central step in the MD5 algorithm. */ 1578faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel#define MD5STEP(f, w, x, y, z, data, s) \ 1588faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel ( w += f(x, y, z) + data, w = w<<s | w>>(32-s), w += x ) 1598faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel 1608faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel/* 1618faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel * The core of the MD5 algorithm, this alters an existing MD5 hash to 1628faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel * reflect the addition of 16 longwords of new data. MD5Update blocks 1638faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel * the data and converts bytes into longwords for this routine. 1648faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel */ 1658faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedelstatic void MD5Transform(u32 buf[4], u32 const in[16]) 1668faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel{ 167f94e95832f0dbdee6f38d28a0060d1797e96412aYunlian Jiang u32 a, b, c, d; 1688faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel 1698faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel a = buf[0]; 1708faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel b = buf[1]; 1718faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel c = buf[2]; 1728faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel d = buf[3]; 1738faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel 1748faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F1, a, b, c, d, in[0] + 0xd76aa478, 7); 1758faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F1, d, a, b, c, in[1] + 0xe8c7b756, 12); 1768faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F1, c, d, a, b, in[2] + 0x242070db, 17); 1778faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F1, b, c, d, a, in[3] + 0xc1bdceee, 22); 1788faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F1, a, b, c, d, in[4] + 0xf57c0faf, 7); 1798faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F1, d, a, b, c, in[5] + 0x4787c62a, 12); 1808faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F1, c, d, a, b, in[6] + 0xa8304613, 17); 1818faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F1, b, c, d, a, in[7] + 0xfd469501, 22); 1828faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F1, a, b, c, d, in[8] + 0x698098d8, 7); 1838faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F1, d, a, b, c, in[9] + 0x8b44f7af, 12); 1848faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F1, c, d, a, b, in[10] + 0xffff5bb1, 17); 1858faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F1, b, c, d, a, in[11] + 0x895cd7be, 22); 1868faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F1, a, b, c, d, in[12] + 0x6b901122, 7); 1878faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F1, d, a, b, c, in[13] + 0xfd987193, 12); 1888faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F1, c, d, a, b, in[14] + 0xa679438e, 17); 1898faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F1, b, c, d, a, in[15] + 0x49b40821, 22); 1908faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel 1918faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F2, a, b, c, d, in[1] + 0xf61e2562, 5); 1928faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F2, d, a, b, c, in[6] + 0xc040b340, 9); 1938faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F2, c, d, a, b, in[11] + 0x265e5a51, 14); 1948faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20); 1958faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F2, a, b, c, d, in[5] + 0xd62f105d, 5); 1968faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F2, d, a, b, c, in[10] + 0x02441453, 9); 1978faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F2, c, d, a, b, in[15] + 0xd8a1e681, 14); 1988faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20); 1998faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F2, a, b, c, d, in[9] + 0x21e1cde6, 5); 2008faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F2, d, a, b, c, in[14] + 0xc33707d6, 9); 2018faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F2, c, d, a, b, in[3] + 0xf4d50d87, 14); 2028faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F2, b, c, d, a, in[8] + 0x455a14ed, 20); 2038faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F2, a, b, c, d, in[13] + 0xa9e3e905, 5); 2048faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F2, d, a, b, c, in[2] + 0xfcefa3f8, 9); 2058faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F2, c, d, a, b, in[7] + 0x676f02d9, 14); 2068faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20); 2078faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel 2088faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F3, a, b, c, d, in[5] + 0xfffa3942, 4); 2098faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F3, d, a, b, c, in[8] + 0x8771f681, 11); 2108faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F3, c, d, a, b, in[11] + 0x6d9d6122, 16); 2118faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F3, b, c, d, a, in[14] + 0xfde5380c, 23); 2128faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F3, a, b, c, d, in[1] + 0xa4beea44, 4); 2138faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F3, d, a, b, c, in[4] + 0x4bdecfa9, 11); 2148faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F3, c, d, a, b, in[7] + 0xf6bb4b60, 16); 2158faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F3, b, c, d, a, in[10] + 0xbebfbc70, 23); 2168faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F3, a, b, c, d, in[13] + 0x289b7ec6, 4); 2178faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F3, d, a, b, c, in[0] + 0xeaa127fa, 11); 2188faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F3, c, d, a, b, in[3] + 0xd4ef3085, 16); 2198faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F3, b, c, d, a, in[6] + 0x04881d05, 23); 2208faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F3, a, b, c, d, in[9] + 0xd9d4d039, 4); 2218faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F3, d, a, b, c, in[12] + 0xe6db99e5, 11); 2228faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F3, c, d, a, b, in[15] + 0x1fa27cf8, 16); 2238faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F3, b, c, d, a, in[2] + 0xc4ac5665, 23); 2248faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel 2258faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F4, a, b, c, d, in[0] + 0xf4292244, 6); 2268faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F4, d, a, b, c, in[7] + 0x432aff97, 10); 2278faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F4, c, d, a, b, in[14] + 0xab9423a7, 15); 2288faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F4, b, c, d, a, in[5] + 0xfc93a039, 21); 2298faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F4, a, b, c, d, in[12] + 0x655b59c3, 6); 2308faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F4, d, a, b, c, in[3] + 0x8f0ccc92, 10); 2318faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F4, c, d, a, b, in[10] + 0xffeff47d, 15); 2328faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F4, b, c, d, a, in[1] + 0x85845dd1, 21); 2338faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F4, a, b, c, d, in[8] + 0x6fa87e4f, 6); 2348faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10); 2358faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F4, c, d, a, b, in[6] + 0xa3014314, 15); 2368faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F4, b, c, d, a, in[13] + 0x4e0811a1, 21); 2378faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F4, a, b, c, d, in[4] + 0xf7537e82, 6); 2388faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F4, d, a, b, c, in[11] + 0xbd3af235, 10); 2398faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15); 2408faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel MD5STEP(F4, b, c, d, a, in[9] + 0xeb86d391, 21); 2418faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel 2428faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel buf[0] += a; 2438faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel buf[1] += b; 2448faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel buf[2] += c; 2458faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel buf[3] += d; 2468faad30e5a44271d9e50c4d75e1271018d7439b5Ilja H. Friedel} 247