1ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov//--------------------------------------------------------------------------------- 2ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov// 3ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov// Little Color Management System 4ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov// Copyright (c) 1998-2012 Marti Maria Saguer 5ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov// 6ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov// Permission is hereby granted, free of charge, to any person obtaining 7ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov// a copy of this software and associated documentation files (the "Software"), 8ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov// to deal in the Software without restriction, including without limitation 9ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov// the rights to use, copy, modify, merge, publish, distribute, sublicense, 10ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov// and/or sell copies of the Software, and to permit persons to whom the Software 11ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov// is furnished to do so, subject to the following conditions: 12ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov// 13ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov// The above copyright notice and this permission notice shall be included in 14ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov// all copies or substantial portions of the Software. 15ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov// 16ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 17ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO 18ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 19ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 20ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 21ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 22ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 23ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov// 24ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov//--------------------------------------------------------------------------------- 25ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 26ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov#include "lcms2_internal.h" 27ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 28ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov#ifdef CMS_USE_BIG_ENDIAN 29ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 30ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganovstatic 31ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganovvoid byteReverse(cmsUInt8Number * buf, cmsUInt32Number longs) 32ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov{ 33ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov do { 34ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 35ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov cmsUInt32Number t = _cmsAdjustEndianess32(*(cmsUInt32Number *) buf); 36ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov *(cmsUInt32Number *) buf = t; 37ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov buf += sizeof(cmsUInt32Number); 38ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 39ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } while (--longs); 40ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 41ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov} 42ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 43ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov#else 44ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov#define byteReverse(buf, len) 45ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov#endif 46ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 47ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 48ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganovtypedef struct { 49ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 50ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov cmsUInt32Number buf[4]; 51ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov cmsUInt32Number bits[2]; 52ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov cmsUInt8Number in[64]; 53ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov cmsContext ContextID; 54ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 55ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov} _cmsMD5; 56ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 57ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov#define F1(x, y, z) (z ^ (x & (y ^ z))) 58ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov#define F2(x, y, z) F1(z, x, y) 59ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov#define F3(x, y, z) (x ^ y ^ z) 60ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov#define F4(x, y, z) (y ^ (x | ~z)) 61ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 62ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov#define STEP(f, w, x, y, z, data, s) \ 63ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov ( w += f(x, y, z) + data, w = w<<s | w>>(32-s), w += x ) 64ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 65ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 66ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganovstatic 67ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganovvoid MD5_Transform(cmsUInt32Number buf[4], cmsUInt32Number in[16]) 68ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 69ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov{ 70ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov register cmsUInt32Number a, b, c, d; 71ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 72ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov a = buf[0]; 73ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov b = buf[1]; 74ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov c = buf[2]; 75ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov d = buf[3]; 76ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 77ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F1, a, b, c, d, in[0] + 0xd76aa478, 7); 78ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F1, d, a, b, c, in[1] + 0xe8c7b756, 12); 79ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F1, c, d, a, b, in[2] + 0x242070db, 17); 80ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F1, b, c, d, a, in[3] + 0xc1bdceee, 22); 81ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F1, a, b, c, d, in[4] + 0xf57c0faf, 7); 82ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F1, d, a, b, c, in[5] + 0x4787c62a, 12); 83ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F1, c, d, a, b, in[6] + 0xa8304613, 17); 84ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F1, b, c, d, a, in[7] + 0xfd469501, 22); 85ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F1, a, b, c, d, in[8] + 0x698098d8, 7); 86ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F1, d, a, b, c, in[9] + 0x8b44f7af, 12); 87ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F1, c, d, a, b, in[10] + 0xffff5bb1, 17); 88ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F1, b, c, d, a, in[11] + 0x895cd7be, 22); 89ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F1, a, b, c, d, in[12] + 0x6b901122, 7); 90ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F1, d, a, b, c, in[13] + 0xfd987193, 12); 91ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F1, c, d, a, b, in[14] + 0xa679438e, 17); 92ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F1, b, c, d, a, in[15] + 0x49b40821, 22); 93ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 94ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F2, a, b, c, d, in[1] + 0xf61e2562, 5); 95ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F2, d, a, b, c, in[6] + 0xc040b340, 9); 96ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F2, c, d, a, b, in[11] + 0x265e5a51, 14); 97ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20); 98ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F2, a, b, c, d, in[5] + 0xd62f105d, 5); 99ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F2, d, a, b, c, in[10] + 0x02441453, 9); 100ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F2, c, d, a, b, in[15] + 0xd8a1e681, 14); 101ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20); 102ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F2, a, b, c, d, in[9] + 0x21e1cde6, 5); 103ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F2, d, a, b, c, in[14] + 0xc33707d6, 9); 104ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F2, c, d, a, b, in[3] + 0xf4d50d87, 14); 105ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F2, b, c, d, a, in[8] + 0x455a14ed, 20); 106ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F2, a, b, c, d, in[13] + 0xa9e3e905, 5); 107ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F2, d, a, b, c, in[2] + 0xfcefa3f8, 9); 108ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F2, c, d, a, b, in[7] + 0x676f02d9, 14); 109ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20); 110ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 111ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F3, a, b, c, d, in[5] + 0xfffa3942, 4); 112ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F3, d, a, b, c, in[8] + 0x8771f681, 11); 113ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F3, c, d, a, b, in[11] + 0x6d9d6122, 16); 114ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F3, b, c, d, a, in[14] + 0xfde5380c, 23); 115ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F3, a, b, c, d, in[1] + 0xa4beea44, 4); 116ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F3, d, a, b, c, in[4] + 0x4bdecfa9, 11); 117ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F3, c, d, a, b, in[7] + 0xf6bb4b60, 16); 118ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F3, b, c, d, a, in[10] + 0xbebfbc70, 23); 119ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F3, a, b, c, d, in[13] + 0x289b7ec6, 4); 120ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F3, d, a, b, c, in[0] + 0xeaa127fa, 11); 121ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F3, c, d, a, b, in[3] + 0xd4ef3085, 16); 122ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F3, b, c, d, a, in[6] + 0x04881d05, 23); 123ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F3, a, b, c, d, in[9] + 0xd9d4d039, 4); 124ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F3, d, a, b, c, in[12] + 0xe6db99e5, 11); 125ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F3, c, d, a, b, in[15] + 0x1fa27cf8, 16); 126ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F3, b, c, d, a, in[2] + 0xc4ac5665, 23); 127ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 128ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F4, a, b, c, d, in[0] + 0xf4292244, 6); 129ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F4, d, a, b, c, in[7] + 0x432aff97, 10); 130ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F4, c, d, a, b, in[14] + 0xab9423a7, 15); 131ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F4, b, c, d, a, in[5] + 0xfc93a039, 21); 132ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F4, a, b, c, d, in[12] + 0x655b59c3, 6); 133ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F4, d, a, b, c, in[3] + 0x8f0ccc92, 10); 134ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F4, c, d, a, b, in[10] + 0xffeff47d, 15); 135ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F4, b, c, d, a, in[1] + 0x85845dd1, 21); 136ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F4, a, b, c, d, in[8] + 0x6fa87e4f, 6); 137ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10); 138ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F4, c, d, a, b, in[6] + 0xa3014314, 15); 139ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F4, b, c, d, a, in[13] + 0x4e0811a1, 21); 140ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F4, a, b, c, d, in[4] + 0xf7537e82, 6); 141ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F4, d, a, b, c, in[11] + 0xbd3af235, 10); 142ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15); 143ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov STEP(F4, b, c, d, a, in[9] + 0xeb86d391, 21); 144ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 145ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov buf[0] += a; 146ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov buf[1] += b; 147ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov buf[2] += c; 148ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov buf[3] += d; 149ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov} 150ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 151ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 152ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov// Create a MD5 object 153ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganovstatic 154ee451cb395940862dad63c85adfe8f2fd55e864cSvet GanovcmsHANDLE MD5alloc(cmsContext ContextID) 155ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov{ 156ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov _cmsMD5* ctx = (_cmsMD5*) _cmsMallocZero(ContextID, sizeof(_cmsMD5)); 157ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov if (ctx == NULL) return NULL; 158ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 159ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov ctx ->ContextID = ContextID; 160ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 161ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov ctx->buf[0] = 0x67452301; 162ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov ctx->buf[1] = 0xefcdab89; 163ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov ctx->buf[2] = 0x98badcfe; 164ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov ctx->buf[3] = 0x10325476; 165ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 166ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov ctx->bits[0] = 0; 167ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov ctx->bits[1] = 0; 168ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 169ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov return (cmsHANDLE) ctx; 170ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov} 171ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 172ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 173ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganovstatic 174ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganovvoid MD5add(cmsHANDLE Handle, cmsUInt8Number* buf, cmsUInt32Number len) 175ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov{ 176ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov _cmsMD5* ctx = (_cmsMD5*) Handle; 177ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov cmsUInt32Number t; 178ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 179ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov t = ctx->bits[0]; 180ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov if ((ctx->bits[0] = t + (len << 3)) < t) 181ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov ctx->bits[1]++; 182ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 183ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov ctx->bits[1] += len >> 29; 184ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 185ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov t = (t >> 3) & 0x3f; 186ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 187ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov if (t) { 188ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 189ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov cmsUInt8Number *p = (cmsUInt8Number *) ctx->in + t; 190ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 191ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov t = 64 - t; 192ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov if (len < t) { 193ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov memmove(p, buf, len); 194ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov return; 195ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 196ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 197ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov memmove(p, buf, t); 198ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov byteReverse(ctx->in, 16); 199ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 200ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov MD5_Transform(ctx->buf, (cmsUInt32Number *) ctx->in); 201ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov buf += t; 202ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov len -= t; 203ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 204ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 205ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov while (len >= 64) { 206ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov memmove(ctx->in, buf, 64); 207ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov byteReverse(ctx->in, 16); 208ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov MD5_Transform(ctx->buf, (cmsUInt32Number *) ctx->in); 209ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov buf += 64; 210ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov len -= 64; 211ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 212ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 213ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov memmove(ctx->in, buf, len); 214ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov} 215ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 216ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov// Destroy the object and return the checksum 217ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganovstatic 218ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganovvoid MD5finish(cmsProfileID* ProfileID, cmsHANDLE Handle) 219ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov{ 220ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov _cmsMD5* ctx = (_cmsMD5*) Handle; 221ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov cmsUInt32Number count; 222ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov cmsUInt8Number *p; 223ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 224ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov count = (ctx->bits[0] >> 3) & 0x3F; 225ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 226ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov p = ctx->in + count; 227ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov *p++ = 0x80; 228ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 229ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov count = 64 - 1 - count; 230ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 231ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov if (count < 8) { 232ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 233ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov memset(p, 0, count); 234ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov byteReverse(ctx->in, 16); 235ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov MD5_Transform(ctx->buf, (cmsUInt32Number *) ctx->in); 236ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 237ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov memset(ctx->in, 0, 56); 238ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } else { 239ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov memset(p, 0, count - 8); 240ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 241ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov byteReverse(ctx->in, 14); 242ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 243ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov ((cmsUInt32Number *) ctx->in)[14] = ctx->bits[0]; 244ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov ((cmsUInt32Number *) ctx->in)[15] = ctx->bits[1]; 245ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 246ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov MD5_Transform(ctx->buf, (cmsUInt32Number *) ctx->in); 247ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 248ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov byteReverse((cmsUInt8Number *) ctx->buf, 4); 249ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov memmove(ProfileID ->ID8, ctx->buf, 16); 250ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 251ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov _cmsFree(ctx ->ContextID, ctx); 252ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov} 253ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 254ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 255ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 256ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov// Assuming io points to an ICC profile, compute and store MD5 checksum 257ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov// In the header, rendering intentent, attributes and ID should be set to zero 258ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov// before computing MD5 checksum (per 6.1.13 in ICC spec) 259ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 260ee451cb395940862dad63c85adfe8f2fd55e864cSvet GanovcmsBool CMSEXPORT cmsMD5computeID(cmsHPROFILE hProfile) 261ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov{ 262ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov cmsContext ContextID; 263ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov cmsUInt32Number BytesNeeded; 264ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov cmsUInt8Number* Mem = NULL; 265ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov cmsHANDLE MD5 = NULL; 266ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov _cmsICCPROFILE* Icc = (_cmsICCPROFILE*) hProfile; 267ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov _cmsICCPROFILE Keep; 268ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 269ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov _cmsAssert(hProfile != NULL); 270ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 271ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov ContextID = cmsGetProfileContextID(hProfile); 272ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 273ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov // Save a copy of the profile header 274ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov memmove(&Keep, Icc, sizeof(_cmsICCPROFILE)); 275ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 276ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov // Set RI, attributes and ID 277ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov memset(&Icc ->attributes, 0, sizeof(Icc ->attributes)); 278ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov Icc ->RenderingIntent = 0; 279ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov memset(&Icc ->ProfileID, 0, sizeof(Icc ->ProfileID)); 280ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 281ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov // Compute needed storage 282ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov if (!cmsSaveProfileToMem(hProfile, NULL, &BytesNeeded)) goto Error; 283ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 284ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov // Allocate memory 285ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov Mem = (cmsUInt8Number*) _cmsMalloc(ContextID, BytesNeeded); 286ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov if (Mem == NULL) goto Error; 287ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 288ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov // Save to temporary storage 289ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov if (!cmsSaveProfileToMem(hProfile, Mem, &BytesNeeded)) goto Error; 290ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 291ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov // Create MD5 object 292ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov MD5 = MD5alloc(ContextID); 293ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov if (MD5 == NULL) goto Error; 294ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 295ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov // Add all bytes 296ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov MD5add(MD5, Mem, BytesNeeded); 297ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 298ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov // Temp storage is no longer needed 299ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov _cmsFree(ContextID, Mem); 300ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 301ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov // Restore header 302ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov memmove(Icc, &Keep, sizeof(_cmsICCPROFILE)); 303ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 304ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov // And store the ID 305ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov MD5finish(&Icc ->ProfileID, MD5); 306ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov return TRUE; 307ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 308ee451cb395940862dad63c85adfe8f2fd55e864cSvet GanovError: 309ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 310ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov // Free resources as something went wrong 311ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov // "MD5" cannot be other than NULL here, so no need to free it 312ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov if (Mem != NULL) _cmsFree(ContextID, Mem); 313ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov memmove(Icc, &Keep, sizeof(_cmsICCPROFILE)); 314ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov return FALSE; 315ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov} 316ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 317ee451cb395940862dad63c85adfe8f2fd55e864cSvet GanovcmsBool CMSEXPORT cmsMD5computeIDExt(const void* buf, unsigned long size, unsigned char ProfileID[16]) 318ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov{ 319ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov cmsHANDLE MD5; 320ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov cmsUInt8Number* Mem; 321ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 322ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov if (buf == NULL) 323ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov return FALSE; 324ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov MD5 = NULL; 325ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov Mem = (cmsUInt8Number*)_cmsMalloc(NULL,size); 326ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov memmove(Mem,buf,size); 327ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov // Create MD5 object 328ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov MD5 = MD5alloc(NULL); 329ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov if (MD5 == NULL) goto Error; 330ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 331ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov // Add all bytes 332ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov MD5add(MD5, Mem, size); 333ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 334ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov // Temp storage is no longer needed 335ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov _cmsFree(NULL, Mem); 336ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 337ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov // And store the ID 338ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov MD5finish((cmsProfileID*)ProfileID, MD5); 339ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov return TRUE; 340ee451cb395940862dad63c85adfe8f2fd55e864cSvet GanovError: 341ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov if (MD5 != NULL) _cmsFree(NULL, MD5); 342ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov return FALSE; 343ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov} 344