Annotation of embedaddon/php/ext/hash/hash_haval.c, revision 1.1.1.4
1.1 misho 1: /*
2: +----------------------------------------------------------------------+
3: | PHP Version 5 |
4: +----------------------------------------------------------------------+
1.1.1.4 ! misho 5: | Copyright (c) 1997-2014 The PHP Group |
1.1 misho 6: +----------------------------------------------------------------------+
7: | This source file is subject to version 3.01 of the PHP license, |
8: | that is bundled with this package in the file LICENSE, and is |
9: | available through the world-wide-web at the following url: |
10: | http://www.php.net/license/3_01.txt |
11: | If you did not receive a copy of the PHP license and are unable to |
12: | obtain it through the world-wide-web, please send a note to |
13: | license@php.net so we can mail you a copy immediately. |
14: +----------------------------------------------------------------------+
15: | Author: Sara Golemon <pollita@php.net> |
16: +----------------------------------------------------------------------+
17: */
18:
1.1.1.2 misho 19: /* $Id$ */
1.1 misho 20:
21: #include "php_hash.h"
22: #include "php_hash_haval.h"
23:
24: static const unsigned char PADDING[128] ={
25: 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
26: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
27: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
28: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
29: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
30: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
31: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
32: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
33:
34: static const php_hash_uint32 D0[8] = {
35: 0x243F6A88, 0x85A308D3, 0x13198A2E, 0x03707344, 0xA4093822, 0x299F31D0, 0x082EFA98, 0xEC4E6C89 };
36:
37: static const php_hash_uint32 K2[32] = {
38: 0x452821E6, 0x38D01377, 0xBE5466CF, 0x34E90C6C, 0xC0AC29B7, 0xC97C50DD, 0x3F84D5B5, 0xB5470917,
39: 0x9216D5D9, 0x8979FB1B, 0xD1310BA6, 0x98DFB5AC, 0x2FFD72DB, 0xD01ADFB7, 0xB8E1AFED, 0x6A267E96,
40: 0xBA7C9045, 0xF12C7F99, 0x24A19947, 0xB3916CF7, 0x0801F2E2, 0x858EFC16, 0x636920D8, 0x71574E69,
41: 0xA458FEA3, 0xF4933D7E, 0x0D95748F, 0x728EB658, 0x718BCD58, 0x82154AEE, 0x7B54A41D, 0xC25A59B5 };
42:
43: static const php_hash_uint32 K3[32] = {
44: 0x9C30D539, 0x2AF26013, 0xC5D1B023, 0x286085F0, 0xCA417918, 0xB8DB38EF, 0x8E79DCB0, 0x603A180E,
45: 0x6C9E0E8B, 0xB01E8A3E, 0xD71577C1, 0xBD314B27, 0x78AF2FDA, 0x55605C60, 0xE65525F3, 0xAA55AB94,
46: 0x57489862, 0x63E81440, 0x55CA396A, 0x2AAB10B6, 0xB4CC5C34, 0x1141E8CE, 0xA15486AF, 0x7C72E993,
47: 0xB3EE1411, 0x636FBC2A, 0x2BA9C55D, 0x741831F6, 0xCE5C3E16, 0x9B87931E, 0xAFD6BA33, 0x6C24CF5C };
48:
49: static const php_hash_uint32 K4[32] = {
50: 0x7A325381, 0x28958677, 0x3B8F4898, 0x6B4BB9AF, 0xC4BFE81B, 0x66282193, 0x61D809CC, 0xFB21A991,
51: 0x487CAC60, 0x5DEC8032, 0xEF845D5D, 0xE98575B1, 0xDC262302, 0xEB651B88, 0x23893E81, 0xD396ACC5,
52: 0x0F6D6FF3, 0x83F44239, 0x2E0B4482, 0xA4842004, 0x69C8F04A, 0x9E1F9B5E, 0x21C66842, 0xF6E96C9A,
53: 0x670C9C61, 0xABD388F0, 0x6A51A0D2, 0xD8542F68, 0x960FA728, 0xAB5133A3, 0x6EEF0B6C, 0x137A3BE4 };
54:
55: static const php_hash_uint32 K5[32] = {
56: 0xBA3BF050, 0x7EFB2A98, 0xA1F1651D, 0x39AF0176, 0x66CA593E, 0x82430E88, 0x8CEE8619, 0x456F9FB4,
57: 0x7D84A5C3, 0x3B8B5EBE, 0xE06F75D8, 0x85C12073, 0x401A449F, 0x56C16AA6, 0x4ED3AA62, 0x363F7706,
58: 0x1BFEDF72, 0x429B023D, 0x37D0D724, 0xD00A1248, 0xDB0FEAD3, 0x49F1C09B, 0x075372C9, 0x80991B7B,
59: 0x25D479D8, 0xF6E8DEF7, 0xE3FE501A, 0xB6794C3B, 0x976CE0BD, 0x04C006BA, 0xC1A94FB6, 0x409F60C4 };
60:
61: static const short I2[32] = { 5, 14, 26, 18, 11, 28, 7, 16, 0, 23, 20, 22, 1, 10, 4, 8,
62: 30, 3, 21, 9, 17, 24, 29, 6, 19, 12, 15, 13, 2, 25, 31, 27 };
63:
64: static const short I3[32] = { 19, 9, 4, 20, 28, 17, 8, 22, 29, 14, 25, 12, 24, 30, 16, 26,
65: 31, 15, 7, 3, 1, 0, 18, 27, 13, 6, 21, 10, 23, 11, 5, 2 };
66:
67: static const short I4[32] = { 24, 4, 0, 14, 2, 7, 28, 23, 26, 6, 30, 20, 18, 25, 19, 3,
68: 22, 11, 31, 21, 8, 27, 12, 9, 1, 29, 5, 15, 17, 10, 16, 13 };
69:
70: static const short I5[32] = { 27, 3, 21, 26, 17, 11, 20, 29, 19, 0, 12, 7, 13, 8, 31, 10,
71: 5, 9, 14, 30, 18, 6, 28, 24, 2, 23, 16, 22, 4, 1, 25, 15 };
72:
73: static const short M0[32] = { 0, 7, 6, 5, 4, 3, 2, 1, 0, 7, 6, 5, 4, 3, 2, 1,
74: 0, 7, 6, 5, 4, 3, 2, 1, 0, 7, 6, 5, 4, 3, 2, 1 };
75:
76: static const short M1[32] = { 1, 0, 7, 6, 5, 4, 3, 2, 1, 0, 7, 6, 5, 4, 3, 2,
77: 1, 0, 7, 6, 5, 4, 3, 2, 1, 0, 7, 6, 5, 4, 3, 2 };
78:
79: static const short M2[32] = { 2, 1, 0, 7, 6, 5, 4, 3, 2, 1, 0, 7, 6, 5, 4, 3,
80: 2, 1, 0, 7, 6, 5, 4, 3, 2, 1, 0, 7, 6, 5, 4, 3 };
81:
82: static const short M3[32] = { 3, 2, 1, 0, 7, 6, 5, 4, 3, 2, 1, 0, 7, 6, 5, 4,
83: 3, 2, 1, 0, 7, 6, 5, 4, 3, 2, 1, 0, 7, 6, 5, 4 };
84:
85: static const short M4[32] = { 4, 3, 2, 1, 0, 7, 6, 5, 4, 3, 2, 1, 0, 7, 6, 5,
86: 4, 3, 2, 1, 0, 7, 6, 5, 4, 3, 2, 1, 0, 7, 6, 5 };
87:
88: static const short M5[32] = { 5, 4, 3, 2, 1, 0, 7, 6, 5, 4, 3, 2, 1, 0, 7, 6,
89: 5, 4, 3, 2, 1, 0, 7, 6, 5, 4, 3, 2, 1, 0, 7, 6 };
90:
91: static const short M6[32] = { 6, 5, 4, 3, 2, 1, 0, 7, 6, 5, 4, 3, 2, 1, 0, 7,
92: 6, 5, 4, 3, 2, 1, 0, 7, 6, 5, 4, 3, 2, 1, 0, 7 };
93:
94: static const short M7[32] = { 7, 6, 5, 4, 3, 2, 1, 0, 7, 6, 5, 4, 3, 2, 1, 0,
95: 7, 6, 5, 4, 3, 2, 1, 0, 7, 6, 5, 4, 3, 2, 1, 0 };
96:
97: /* {{{ Encode
98: Encodes input (php_hash_uint32) into output (unsigned char). Assumes len is
99: a multiple of 4.
100: */
101: static void Encode(unsigned char *output, php_hash_uint32 *input, unsigned int len)
102: {
103: unsigned int i, j;
104:
105: for (i = 0, j = 0; j < len; i++, j += 4) {
106: output[j] = (unsigned char) (input[i] & 0xff);
107: output[j + 1] = (unsigned char) ((input[i] >> 8) & 0xff);
108: output[j + 2] = (unsigned char) ((input[i] >> 16) & 0xff);
109: output[j + 3] = (unsigned char) ((input[i] >> 24) & 0xff);
110: }
111: }
112: /* }}} */
113:
114: /* {{{ Decode
115: Decodes input (unsigned char) into output (php_hash_uint32). Assumes len is
116: a multiple of 4.
117: */
118: static void Decode(php_hash_uint32 *output, const unsigned char *input, unsigned int len)
119: {
120: unsigned int i, j;
121:
122: for (i = 0, j = 0; j < len; i++, j += 4) {
123: output[i] = ((php_hash_uint32) input[j]) | (((php_hash_uint32) input[j + 1]) << 8) |
124: (((php_hash_uint32) input[j + 2]) << 16) | (((php_hash_uint32) input[j + 3]) << 24);
125: }
126: }
127: /* }}} */
128:
129: #define F1(x6,x5,x4,x3,x2,x1,x0) ( ((x1) & (x4)) ^ ((x2) & (x5)) ^ ((x3) & (x6)) ^ ((x0) & (x1)) ^ (x0) )
130: #define F2(x6,x5,x4,x3,x2,x1,x0) ( ((x1) & (x2) & (x3)) ^ ((x2) & (x4) & (x5)) ^ ((x1) & (x2)) ^ ((x1) & (x4)) ^ \
131: ((x2) & (x6)) ^ ((x3) & (x5)) ^ ((x4) & (x5)) ^ ((x0) & (x2)) ^ (x0) )
132: #define F3(x6,x5,x4,x3,x2,x1,x0) ( ((x1) & (x2) & (x3)) ^ ((x1) & (x4)) ^ ((x2) & (x5)) ^ ((x3) & (x6)) ^ ((x0) & (x3)) ^ (x0) )
133: #define F4(x6,x5,x4,x3,x2,x1,x0) ( ((x1) & (x2) & (x3)) ^ ((x2) & (x4) & (x5)) ^ ((x3) & (x4) & (x6)) ^ \
134: ((x1) & (x4)) ^ ((x2) & (x6)) ^ ((x3) & (x4)) ^ ((x3) & (x5)) ^ \
135: ((x3) & (x6)) ^ ((x4) & (x5)) ^ ((x4) & (x6)) ^ ((x0) & (x4)) ^ (x0) )
136: #define F5(x6,x5,x4,x3,x2,x1,x0) ( ((x1) & (x4)) ^ ((x2) & (x5)) ^ ((x3) & (x6)) ^ \
137: ((x0) & (x1) & (x2) & (x3)) ^ ((x0) & (x5)) ^ (x0) )
138:
139: #define ROTR(x,n) (((x) >> (n)) | ((x) << (32 - (n))))
140:
141:
142: /* {{{ PHP_3HAVALTransform
143: */
144: static void PHP_3HAVALTransform(php_hash_uint32 state[8], const unsigned char block[128])
145: {
146: php_hash_uint32 E[8];
147: php_hash_uint32 x[32];
148: int i;
149:
150: Decode(x, block, 128);
151:
152: for(i = 0; i < 8; i++) {
153: E[i] = state[i];
154: }
155:
156: for(i = 0; i < 32; i++) {
157: E[7 - (i % 8)] = ROTR(F1(E[M1[i]],E[M0[i]],E[M3[i]],E[M5[i]],E[M6[i]],E[M2[i]],E[M4[i]]),7) + ROTR(E[M7[i]],11) + x[i];
158: }
159: for(i = 0; i < 32; i++) {
160: E[7 - (i % 8)] = ROTR(F2(E[M4[i]],E[M2[i]],E[M1[i]],E[M0[i]],E[M5[i]],E[M3[i]],E[M6[i]]),7) + ROTR(E[M7[i]],11) + x[I2[i]] + K2[i];
161: }
162: for(i = 0; i < 32; i++) {
163: E[7 - (i % 8)] = ROTR(F3(E[M6[i]],E[M1[i]],E[M2[i]],E[M3[i]],E[M4[i]],E[M5[i]],E[M0[i]]),7) + ROTR(E[M7[i]],11) + x[I3[i]] + K3[i];
164: }
165:
166: /* Update digest */
167: for(i = 0; i < 8; i++) {
168: state[i] += E[i];
169: }
170:
171: /* Zeroize sensitive information. */
172: memset((unsigned char*) x, 0, sizeof(x));
173: }
174: /* }}} */
175:
176: /* {{{ PHP_4HAVALTransform
177: */
178: static void PHP_4HAVALTransform(php_hash_uint32 state[8], const unsigned char block[128])
179: {
180: php_hash_uint32 E[8];
181: php_hash_uint32 x[32];
182: int i;
183:
184: Decode(x, block, 128);
185:
186: for(i = 0; i < 8; i++) {
187: E[i] = state[i];
188: }
189:
190: for(i = 0; i < 32; i++) {
191: E[7 - (i % 8)] = ROTR(F1(E[M2[i]],E[M6[i]],E[M1[i]],E[M4[i]],E[M5[i]],E[M3[i]],E[M0[i]]),7) + ROTR(E[M7[i]],11) + x[i];
192: }
193: for(i = 0; i < 32; i++) {
194: E[7 - (i % 8)] = ROTR(F2(E[M3[i]],E[M5[i]],E[M2[i]],E[M0[i]],E[M1[i]],E[M6[i]],E[M4[i]]),7) + ROTR(E[M7[i]],11) + x[I2[i]] + K2[i];
195: }
196: for(i = 0; i < 32; i++) {
197: E[7 - (i % 8)] = ROTR(F3(E[M1[i]],E[M4[i]],E[M3[i]],E[M6[i]],E[M0[i]],E[M2[i]],E[M5[i]]),7) + ROTR(E[M7[i]],11) + x[I3[i]] + K3[i];
198: }
199: for(i = 0; i < 32; i++) {
200: E[7 - (i % 8)] = ROTR(F4(E[M6[i]],E[M4[i]],E[M0[i]],E[M5[i]],E[M2[i]],E[M1[i]],E[M3[i]]),7) + ROTR(E[M7[i]],11) + x[I4[i]] + K4[i];
201: }
202:
203: /* Update digest */
204: for(i = 0; i < 8; i++) {
205: state[i] += E[i];
206: }
207:
208: /* Zeroize sensitive information. */
209: memset((unsigned char*) x, 0, sizeof(x));
210: }
211: /* }}} */
212:
213: /* {{{ PHP_5HAVALTransform
214: */
215: static void PHP_5HAVALTransform(php_hash_uint32 state[8], const unsigned char block[128])
216: {
217: php_hash_uint32 E[8];
218: php_hash_uint32 x[32];
219: int i;
220:
221: Decode(x, block, 128);
222:
223: for(i = 0; i < 8; i++) {
224: E[i] = state[i];
225: }
226: for(i = 0; i < 32; i++) {
227: E[7 - (i % 8)] = ROTR(F1(E[M3[i]],E[M4[i]],E[M1[i]],E[M0[i]],E[M5[i]],E[M2[i]],E[M6[i]]),7) + ROTR(E[M7[i]],11) + x[i];
228: }
229: for(i = 0; i < 32; i++) {
230: E[7 - (i % 8)] = ROTR(F2(E[M6[i]],E[M2[i]],E[M1[i]],E[M0[i]],E[M3[i]],E[M4[i]],E[M5[i]]),7) + ROTR(E[M7[i]],11) + x[I2[i]] + K2[i];
231: }
232: for(i = 0; i < 32; i++) {
233: E[7 - (i % 8)] = ROTR(F3(E[M2[i]],E[M6[i]],E[M0[i]],E[M4[i]],E[M3[i]],E[M1[i]],E[M5[i]]),7) + ROTR(E[M7[i]],11) + x[I3[i]] + K3[i];
234: }
235: for(i = 0; i < 32; i++) {
236: E[7 - (i % 8)] = ROTR(F4(E[M1[i]],E[M5[i]],E[M3[i]],E[M2[i]],E[M0[i]],E[M4[i]],E[M6[i]]),7) + ROTR(E[M7[i]],11) + x[I4[i]] + K4[i];
237: }
238: for(i = 0; i < 32; i++) {
239: E[7 - (i % 8)] = ROTR(F5(E[M2[i]],E[M5[i]],E[M0[i]],E[M6[i]],E[M4[i]],E[M3[i]],E[M1[i]]),7) + ROTR(E[M7[i]],11) + x[I5[i]] + K5[i];
240: }
241:
242: /* Update digest */
243: for(i = 0; i < 8; i++) {
244: state[i] += E[i];
245: }
246:
247: /* Zeroize sensitive information. */
248: memset((unsigned char*) x, 0, sizeof(x));
249: }
250: /* }}} */
251:
252: #define PHP_HASH_HAVAL_INIT(p,b) \
253: const php_hash_ops php_hash_##p##haval##b##_ops = { \
254: (php_hash_init_func_t) PHP_##p##HAVAL##b##Init, \
255: (php_hash_update_func_t) PHP_HAVALUpdate, \
256: (php_hash_final_func_t) PHP_HAVAL##b##Final, \
257: (php_hash_copy_func_t) php_hash_copy, \
258: ((b) / 8), 128, sizeof(PHP_HAVAL_CTX) }; \
259: PHP_HASH_API void PHP_##p##HAVAL##b##Init(PHP_HAVAL_CTX *context) \
260: { int i; context->count[0] = context->count[1] = 0; \
261: for(i = 0; i < 8; i++) context->state[i] = D0[i]; \
262: context->passes = p; context->output = b; \
263: context->Transform = PHP_##p##HAVALTransform; }
264:
265: PHP_HASH_HAVAL_INIT(3,128)
266: PHP_HASH_HAVAL_INIT(3,160)
267: PHP_HASH_HAVAL_INIT(3,192)
268: PHP_HASH_HAVAL_INIT(3,224)
269: PHP_HASH_HAVAL_INIT(3,256)
270:
271: PHP_HASH_HAVAL_INIT(4,128)
272: PHP_HASH_HAVAL_INIT(4,160)
273: PHP_HASH_HAVAL_INIT(4,192)
274: PHP_HASH_HAVAL_INIT(4,224)
275: PHP_HASH_HAVAL_INIT(4,256)
276:
277: PHP_HASH_HAVAL_INIT(5,128)
278: PHP_HASH_HAVAL_INIT(5,160)
279: PHP_HASH_HAVAL_INIT(5,192)
280: PHP_HASH_HAVAL_INIT(5,224)
281: PHP_HASH_HAVAL_INIT(5,256)
282:
283: /* {{{ PHP_HAVALUpdate
284: */
285: PHP_HASH_API void PHP_HAVALUpdate(PHP_HAVAL_CTX *context, const unsigned char *input, unsigned int inputLen)
286: {
287: unsigned int i, index, partLen;
288:
289: /* Compute number of bytes mod 128 */
290: index = (unsigned int) ((context->count[0] >> 3) & 0x7F);
291: /* Update number of bits */
292: if ((context->count[0] += ((php_hash_uint32) inputLen << 3)) < ((php_hash_uint32) inputLen << 3)) {
293: context->count[1]++;
294: }
295: context->count[1] += ((php_hash_uint32) inputLen >> 29);
296:
297: partLen = 128 - index;
298:
299: /* Transform as many times as possible.
300: */
301: if (inputLen >= partLen) {
302: memcpy((unsigned char*) & context->buffer[index], (unsigned char*) input, partLen);
303: context->Transform(context->state, context->buffer);
304:
305: for (i = partLen; i + 127 < inputLen; i += 128) {
306: context->Transform(context->state, &input[i]);
307: }
308:
309: index = 0;
310: } else {
311: i = 0;
312: }
313:
314: /* Buffer remaining input */
315: memcpy((unsigned char*) &context->buffer[index], (unsigned char*) &input[i], inputLen - i);
316: }
317: /* }}} */
318:
319: #define PHP_HASH_HAVAL_VERSION 0x01
320:
321: /* {{{ PHP_HAVAL128Final
322: */
323: PHP_HASH_API void PHP_HAVAL128Final(unsigned char *digest, PHP_HAVAL_CTX * context)
324: {
325: unsigned char bits[10];
326: unsigned int index, padLen;
327:
328: /* Version, Passes, and Digest Length */
329: bits[0] = (PHP_HASH_HAVAL_VERSION & 0x07) |
330: ((context->passes & 0x07) << 3) |
331: ((context->output & 0x03) << 6);
332: bits[1] = (context->output >> 2);
333:
334: /* Save number of bits */
335: Encode(bits + 2, context->count, 8);
336:
337: /* Pad out to 118 mod 128.
338: */
339: index = (unsigned int) ((context->count[0] >> 3) & 0x3f);
340: padLen = (index < 118) ? (118 - index) : (246 - index);
341: PHP_HAVALUpdate(context, PADDING, padLen);
342:
343: /* Append version, passes, digest length, and message length */
344: PHP_HAVALUpdate(context, bits, 10);
345:
346: /* Store state in digest */
347: context->state[3] += (context->state[7] & 0xFF000000) |
348: (context->state[6] & 0x00FF0000) |
349: (context->state[5] & 0x0000FF00) |
350: (context->state[4] & 0x000000FF);
351:
352: context->state[2] += (((context->state[7] & 0x00FF0000) |
353: (context->state[6] & 0x0000FF00) |
354: (context->state[5] & 0x000000FF)) << 8) |
355: ((context->state[4] & 0xFF000000) >> 24);
356:
357: context->state[1] += (((context->state[7] & 0x0000FF00) |
358: (context->state[6] & 0x000000FF)) << 16) |
359: (((context->state[5] & 0xFF000000) |
360: (context->state[4] & 0x00FF0000)) >> 16);
361:
362: context->state[0] += ((context->state[7] & 0x000000FF) << 24) |
363: (((context->state[6] & 0xFF000000) |
364: (context->state[5] & 0x00FF0000) |
365: (context->state[4] & 0x0000FF00)) >> 8);
366:
367: Encode(digest, context->state, 16);
368:
369: /* Zeroize sensitive information.
370: */
371: memset((unsigned char*) context, 0, sizeof(*context));
372: }
373: /* }}} */
374:
375: /* {{{ PHP_HAVAL160Final
376: */
377: PHP_HASH_API void PHP_HAVAL160Final(unsigned char *digest, PHP_HAVAL_CTX * context)
378: {
379: unsigned char bits[10];
380: unsigned int index, padLen;
381:
382: /* Version, Passes, and Digest Length */
383: bits[0] = (PHP_HASH_HAVAL_VERSION & 0x07) |
384: ((context->passes & 0x07) << 3) |
385: ((context->output & 0x03) << 6);
386: bits[1] = (context->output >> 2);
387:
388: /* Save number of bits */
389: Encode(bits + 2, context->count, 8);
390:
391: /* Pad out to 118 mod 128.
392: */
393: index = (unsigned int) ((context->count[0] >> 3) & 0x3f);
394: padLen = (index < 118) ? (118 - index) : (246 - index);
395: PHP_HAVALUpdate(context, PADDING, padLen);
396:
397: /* Append version, passes, digest length, and message length */
398: PHP_HAVALUpdate(context, bits, 10);
399:
400: /* Store state in digest */
401: context->state[4] += ((context->state[7] & 0xFE000000) |
402: (context->state[6] & 0x01F80000) |
403: (context->state[5] & 0x0007F000)) >> 12;
404:
405: context->state[3] += ((context->state[7] & 0x01F80000) |
406: (context->state[6] & 0x0007F000) |
407: (context->state[5] & 0x00000FC0)) >> 6;
408:
409: context->state[2] += (context->state[7] & 0x0007F000) |
410: (context->state[6] & 0x00000FC0) |
411: (context->state[5] & 0x0000003F);
412:
413: context->state[1] += ROTR((context->state[7] & 0x00000FC0) |
414: (context->state[6] & 0x0000003F) |
415: (context->state[5] & 0xFE000000), 25);
416:
417: context->state[0] += ROTR((context->state[7] & 0x0000003F) |
418: (context->state[6] & 0xFE000000) |
419: (context->state[5] & 0x01F80000), 19);
420:
421: Encode(digest, context->state, 20);
422:
423: /* Zeroize sensitive information.
424: */
425: memset((unsigned char*) context, 0, sizeof(*context));
426: }
427: /* }}} */
428:
429: /* {{{ PHP_HAVAL192Final
430: */
431: PHP_HASH_API void PHP_HAVAL192Final(unsigned char *digest, PHP_HAVAL_CTX * context)
432: {
433: unsigned char bits[10];
434: unsigned int index, padLen;
435:
436: /* Version, Passes, and Digest Length */
437: bits[0] = (PHP_HASH_HAVAL_VERSION & 0x07) |
438: ((context->passes & 0x07) << 3) |
439: ((context->output & 0x03) << 6);
440: bits[1] = (context->output >> 2);
441:
442: /* Save number of bits */
443: Encode(bits + 2, context->count, 8);
444:
445: /* Pad out to 118 mod 128.
446: */
447: index = (unsigned int) ((context->count[0] >> 3) & 0x3f);
448: padLen = (index < 118) ? (118 - index) : (246 - index);
449: PHP_HAVALUpdate(context, PADDING, padLen);
450:
451: /* Append version, passes, digest length, and message length */
452: PHP_HAVALUpdate(context, bits, 10);
453:
454: /* Store state in digest */
455: context->state[5] += ((context->state[7] & 0xFC000000) | (context->state[6] & 0x03E00000)) >> 21;
456: context->state[4] += ((context->state[7] & 0x03E00000) | (context->state[6] & 0x001F0000)) >> 16;
457: context->state[3] += ((context->state[7] & 0x001F0000) | (context->state[6] & 0x0000FC00)) >> 10;
458: context->state[2] += ((context->state[7] & 0x0000FC00) | (context->state[6] & 0x000003E0)) >> 5;
459: context->state[1] += (context->state[7] & 0x000003E0) | (context->state[6] & 0x0000001F);
460: context->state[0] += ROTR((context->state[7] & 0x0000001F) | (context->state[6] & 0xFC000000), 26);
461: Encode(digest, context->state, 24);
462:
463: /* Zeroize sensitive information.
464: */
465: memset((unsigned char*) context, 0, sizeof(*context));
466: }
467: /* }}} */
468:
469: /* {{{ PHP_HAVAL224Final
470: */
471: PHP_HASH_API void PHP_HAVAL224Final(unsigned char *digest, PHP_HAVAL_CTX * context)
472: {
473: unsigned char bits[10];
474: unsigned int index, padLen;
475:
476: /* Version, Passes, and Digest Length */
477: bits[0] = (PHP_HASH_HAVAL_VERSION & 0x07) |
478: ((context->passes & 0x07) << 3) |
479: ((context->output & 0x03) << 6);
480: bits[1] = (context->output >> 2);
481:
482: /* Save number of bits */
483: Encode(bits + 2, context->count, 8);
484:
485: /* Pad out to 118 mod 128.
486: */
487: index = (unsigned int) ((context->count[0] >> 3) & 0x3f);
488: padLen = (index < 118) ? (118 - index) : (246 - index);
489: PHP_HAVALUpdate(context, PADDING, padLen);
490:
491: /* Append version, passes, digest length, and message length */
492: PHP_HAVALUpdate(context, bits, 10);
493:
494: /* Store state in digest */
495: context->state[6] += context->state[7] & 0x0000000F;
496: context->state[5] += (context->state[7] >> 4) & 0x0000001F;
497: context->state[4] += (context->state[7] >> 9) & 0x0000000F;
498: context->state[3] += (context->state[7] >> 13) & 0x0000001F;
499: context->state[2] += (context->state[7] >> 18) & 0x0000000F;
500: context->state[1] += (context->state[7] >> 22) & 0x0000001F;
501: context->state[0] += (context->state[7] >> 27) & 0x0000001F;
502: Encode(digest, context->state, 28);
503:
504: /* Zeroize sensitive information.
505: */
506: memset((unsigned char*) context, 0, sizeof(*context));
507: }
508: /* }}} */
509:
510: /* {{{ PHP_HAVAL256Final
511: */
512: PHP_HASH_API void PHP_HAVAL256Final(unsigned char *digest, PHP_HAVAL_CTX * context)
513: {
514: unsigned char bits[10];
515: unsigned int index, padLen;
516:
517: /* Version, Passes, and Digest Length */
518: bits[0] = (PHP_HASH_HAVAL_VERSION & 0x07) |
519: ((context->passes & 0x07) << 3) |
520: ((context->output & 0x03) << 6);
521: bits[1] = (context->output >> 2);
522:
523: /* Save number of bits */
524: Encode(bits + 2, context->count, 8);
525:
526: /* Pad out to 118 mod 128.
527: */
528: index = (unsigned int) ((context->count[0] >> 3) & 0x3f);
529: padLen = (index < 118) ? (118 - index) : (246 - index);
530: PHP_HAVALUpdate(context, PADDING, padLen);
531:
532: /* Append version, passes, digest length, and message length */
533: PHP_HAVALUpdate(context, bits, 10);
534:
535: /* Store state in digest */
536: Encode(digest, context->state, 32);
537:
538: /* Zeroize sensitive information.
539: */
540: memset((unsigned char*) context, 0, sizeof(*context));
541: }
542: /* }}} */
543:
544: /*
545: * Local variables:
546: * tab-width: 4
547: * c-basic-offset: 4
548: * End:
549: * vim600: sw=4 ts=4 fdm=marker
550: * vim<600: sw=4 ts=4
551: */
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