xref: /PHP-7.3/ext/hash/hash_haval.c (revision 8d3f8ca1)
1 /*
2   +----------------------------------------------------------------------+
3   | PHP Version 7                                                        |
4   +----------------------------------------------------------------------+
5   | Copyright (c) 1997-2018 The PHP Group                                |
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 
19 #include "php_hash.h"
20 #include "php_hash_haval.h"
21 
22 static const unsigned char PADDING[128] ={
23 	1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
24 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
25 	0, 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 
32 static const uint32_t D0[8] = {
33 	0x243F6A88, 0x85A308D3, 0x13198A2E, 0x03707344, 0xA4093822, 0x299F31D0, 0x082EFA98, 0xEC4E6C89 };
34 
35 static const uint32_t K2[32] = {
36 	0x452821E6, 0x38D01377, 0xBE5466CF, 0x34E90C6C, 0xC0AC29B7, 0xC97C50DD, 0x3F84D5B5, 0xB5470917,
37 	0x9216D5D9, 0x8979FB1B, 0xD1310BA6, 0x98DFB5AC, 0x2FFD72DB, 0xD01ADFB7, 0xB8E1AFED, 0x6A267E96,
38 	0xBA7C9045, 0xF12C7F99, 0x24A19947, 0xB3916CF7, 0x0801F2E2, 0x858EFC16, 0x636920D8, 0x71574E69,
39 	0xA458FEA3, 0xF4933D7E, 0x0D95748F, 0x728EB658, 0x718BCD58, 0x82154AEE, 0x7B54A41D, 0xC25A59B5 };
40 
41 static const uint32_t K3[32] = {
42 	0x9C30D539, 0x2AF26013, 0xC5D1B023, 0x286085F0, 0xCA417918, 0xB8DB38EF, 0x8E79DCB0, 0x603A180E,
43 	0x6C9E0E8B, 0xB01E8A3E, 0xD71577C1, 0xBD314B27, 0x78AF2FDA, 0x55605C60, 0xE65525F3, 0xAA55AB94,
44 	0x57489862, 0x63E81440, 0x55CA396A, 0x2AAB10B6, 0xB4CC5C34, 0x1141E8CE, 0xA15486AF, 0x7C72E993,
45 	0xB3EE1411, 0x636FBC2A, 0x2BA9C55D, 0x741831F6, 0xCE5C3E16, 0x9B87931E, 0xAFD6BA33, 0x6C24CF5C };
46 
47 static const uint32_t K4[32] = {
48 	0x7A325381, 0x28958677, 0x3B8F4898, 0x6B4BB9AF, 0xC4BFE81B, 0x66282193, 0x61D809CC, 0xFB21A991,
49 	0x487CAC60, 0x5DEC8032, 0xEF845D5D, 0xE98575B1, 0xDC262302, 0xEB651B88, 0x23893E81, 0xD396ACC5,
50 	0x0F6D6FF3, 0x83F44239, 0x2E0B4482, 0xA4842004, 0x69C8F04A, 0x9E1F9B5E, 0x21C66842, 0xF6E96C9A,
51 	0x670C9C61, 0xABD388F0, 0x6A51A0D2, 0xD8542F68, 0x960FA728, 0xAB5133A3, 0x6EEF0B6C, 0x137A3BE4 };
52 
53 static const uint32_t K5[32] = {
54 	0xBA3BF050, 0x7EFB2A98, 0xA1F1651D, 0x39AF0176, 0x66CA593E, 0x82430E88, 0x8CEE8619, 0x456F9FB4,
55 	0x7D84A5C3, 0x3B8B5EBE, 0xE06F75D8, 0x85C12073, 0x401A449F, 0x56C16AA6, 0x4ED3AA62, 0x363F7706,
56 	0x1BFEDF72, 0x429B023D, 0x37D0D724, 0xD00A1248, 0xDB0FEAD3, 0x49F1C09B, 0x075372C9, 0x80991B7B,
57 	0x25D479D8, 0xF6E8DEF7, 0xE3FE501A, 0xB6794C3B, 0x976CE0BD, 0x04C006BA, 0xC1A94FB6, 0x409F60C4 };
58 
59 static const short I2[32] = {	 5, 14, 26, 18, 11, 28,  7, 16,  0, 23, 20, 22,  1, 10,  4,  8,
60 						30,  3, 21,  9, 17, 24, 29,  6, 19, 12, 15, 13,  2, 25, 31, 27 };
61 
62 static const short I3[32] = {	19,  9,  4, 20, 28, 17,  8, 22, 29, 14, 25, 12, 24, 30, 16, 26,
63 						31, 15,  7,  3,  1,  0, 18, 27, 13,  6, 21, 10, 23, 11,  5,  2 };
64 
65 static const short I4[32] = {	24,  4,  0, 14,  2,  7, 28, 23, 26,  6, 30, 20, 18, 25, 19,  3,
66 						22, 11, 31, 21,  8, 27, 12,  9,  1, 29,  5, 15, 17, 10, 16, 13 };
67 
68 static const short I5[32] = {	27,  3, 21, 26, 17, 11, 20, 29, 19,  0, 12,  7, 13,  8, 31, 10,
69 						 5,  9, 14, 30, 18,  6, 28, 24,  2, 23, 16, 22,  4,  1, 25, 15 };
70 
71 static const short M0[32] = {	0, 7, 6, 5, 4, 3, 2, 1, 0, 7, 6, 5, 4, 3, 2, 1,
72 						0, 7, 6, 5, 4, 3, 2, 1, 0, 7, 6, 5, 4, 3, 2, 1 };
73 
74 static const short M1[32] = {	1, 0, 7, 6, 5, 4, 3, 2, 1, 0, 7, 6, 5, 4, 3, 2,
75 						1, 0, 7, 6, 5, 4, 3, 2, 1, 0, 7, 6, 5, 4, 3, 2 };
76 
77 static const short M2[32] = {	2, 1, 0, 7, 6, 5, 4, 3, 2, 1, 0, 7, 6, 5, 4, 3,
78 						2, 1, 0, 7, 6, 5, 4, 3, 2, 1, 0, 7, 6, 5, 4, 3 };
79 
80 static const short M3[32] = {	3, 2, 1, 0, 7, 6, 5, 4, 3, 2, 1, 0, 7, 6, 5, 4,
81 						3, 2, 1, 0, 7, 6, 5, 4, 3, 2, 1, 0, 7, 6, 5, 4 };
82 
83 static const short M4[32] = {	4, 3, 2, 1, 0, 7, 6, 5, 4, 3, 2, 1, 0, 7, 6, 5,
84 						4, 3, 2, 1, 0, 7, 6, 5, 4, 3, 2, 1, 0, 7, 6, 5 };
85 
86 static const short M5[32] = {	5, 4, 3, 2, 1, 0, 7, 6, 5, 4, 3, 2, 1, 0, 7, 6,
87 						5, 4, 3, 2, 1, 0, 7, 6, 5, 4, 3, 2, 1, 0, 7, 6 };
88 
89 static const short M6[32] = {	6, 5, 4, 3, 2, 1, 0, 7, 6, 5, 4, 3, 2, 1, 0, 7,
90 						6, 5, 4, 3, 2, 1, 0, 7, 6, 5, 4, 3, 2, 1, 0, 7 };
91 
92 static const short M7[32] = {	7, 6, 5, 4, 3, 2, 1, 0, 7, 6, 5, 4, 3, 2, 1, 0,
93 						7, 6, 5, 4, 3, 2, 1, 0, 7, 6, 5, 4, 3, 2, 1, 0 };
94 
95 /* {{{ Encode
96    Encodes input (uint32_t) into output (unsigned char). Assumes len is
97    a multiple of 4.
98  */
Encode(unsigned char * output,uint32_t * input,unsigned int len)99 static void Encode(unsigned char *output, uint32_t *input, unsigned int len)
100 {
101 	unsigned int i, j;
102 
103 	for (i = 0, j = 0; j < len; i++, j += 4) {
104 		output[j] = (unsigned char) (input[i] & 0xff);
105 		output[j + 1] = (unsigned char) ((input[i] >> 8) & 0xff);
106 		output[j + 2] = (unsigned char) ((input[i] >> 16) & 0xff);
107 		output[j + 3] = (unsigned char) ((input[i] >> 24) & 0xff);
108 	}
109 }
110 /* }}} */
111 
112 /* {{{ Decode
113    Decodes input (unsigned char) into output (uint32_t). Assumes len is
114    a multiple of 4.
115  */
Decode(uint32_t * output,const unsigned char * input,unsigned int len)116 static void Decode(uint32_t *output, const unsigned char *input, unsigned int len)
117 {
118 	unsigned int i, j;
119 
120 	for (i = 0, j = 0; j < len; i++, j += 4) {
121 		output[i] = ((uint32_t) input[j]) | (((uint32_t) input[j + 1]) << 8) |
122 			(((uint32_t) input[j + 2]) << 16) | (((uint32_t) input[j + 3]) << 24);
123 	}
124 }
125 /* }}} */
126 
127 #define F1(x6,x5,x4,x3,x2,x1,x0)	( ((x1) & (x4)) ^ ((x2) & (x5)) ^ ((x3) & (x6)) ^ ((x0) & (x1)) ^ (x0) )
128 #define F2(x6,x5,x4,x3,x2,x1,x0)	( ((x1) & (x2) & (x3)) ^ ((x2) & (x4) & (x5)) ^ ((x1) & (x2)) ^ ((x1) & (x4)) ^ \
129 									  ((x2) & (x6)) ^ ((x3) & (x5)) ^ ((x4) & (x5)) ^ ((x0) & (x2)) ^ (x0) )
130 #define F3(x6,x5,x4,x3,x2,x1,x0)	( ((x1) & (x2) & (x3)) ^ ((x1) & (x4)) ^ ((x2) & (x5)) ^ ((x3) & (x6)) ^ ((x0) & (x3)) ^ (x0) )
131 #define F4(x6,x5,x4,x3,x2,x1,x0)	( ((x1) & (x2) & (x3)) ^ ((x2) & (x4) & (x5)) ^ ((x3) & (x4) & (x6)) ^ \
132 									  ((x1) & (x4)) ^ ((x2) & (x6)) ^ ((x3) & (x4)) ^ ((x3) & (x5)) ^ \
133 									  ((x3) & (x6)) ^ ((x4) & (x5)) ^ ((x4) & (x6)) ^ ((x0) & (x4)) ^ (x0) )
134 #define F5(x6,x5,x4,x3,x2,x1,x0)	( ((x1) & (x4)) ^ ((x2) & (x5)) ^ ((x3) & (x6)) ^ \
135 									  ((x0) & (x1) & (x2) & (x3)) ^ ((x0) & (x5)) ^ (x0) )
136 
137 #define ROTR(x,n)	(((x) >> (n)) | ((x) << (32 - (n))))
138 
139 
140 /* {{{ PHP_3HAVALTransform
141  */
PHP_3HAVALTransform(uint32_t state[8],const unsigned char block[128])142 static void PHP_3HAVALTransform(uint32_t state[8], const unsigned char block[128])
143 {
144 	uint32_t E[8];
145 	uint32_t x[32];
146 	int i;
147 
148 	Decode(x, block, 128);
149 
150 	for(i = 0; i < 8; i++) {
151 		E[i] = state[i];
152 	}
153 
154 	for(i = 0; i < 32; i++) {
155 		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];
156 	}
157 	for(i = 0; i < 32; i++) {
158 		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];
159 	}
160 	for(i = 0; i < 32; i++) {
161 		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];
162 	}
163 
164 	/* Update digest */
165 	for(i = 0; i < 8; i++) {
166 		state[i] += E[i];
167 	}
168 
169 	/* Zeroize sensitive information. */
170 	ZEND_SECURE_ZERO((unsigned char*) x, sizeof(x));
171 }
172 /* }}} */
173 
174 /* {{{ PHP_4HAVALTransform
175  */
PHP_4HAVALTransform(uint32_t state[8],const unsigned char block[128])176 static void PHP_4HAVALTransform(uint32_t state[8], const unsigned char block[128])
177 {
178 	uint32_t E[8];
179 	uint32_t x[32];
180 	int i;
181 
182 	Decode(x, block, 128);
183 
184 	for(i = 0; i < 8; i++) {
185 		E[i] = state[i];
186 	}
187 
188 	for(i = 0; i < 32; i++) {
189 		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];
190 	}
191 	for(i = 0; i < 32; i++) {
192 		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];
193 	}
194 	for(i = 0; i < 32; i++) {
195 		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];
196 	}
197 	for(i = 0; i < 32; i++) {
198 		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];
199 	}
200 
201 	/* Update digest */
202 	for(i = 0; i < 8; i++) {
203 		state[i] += E[i];
204 	}
205 
206 	/* Zeroize sensitive information. */
207 	ZEND_SECURE_ZERO((unsigned char*) x, sizeof(x));
208 }
209 /* }}} */
210 
211 /* {{{ PHP_5HAVALTransform
212  */
PHP_5HAVALTransform(uint32_t state[8],const unsigned char block[128])213 static void PHP_5HAVALTransform(uint32_t state[8], const unsigned char block[128])
214 {
215 	uint32_t E[8];
216 	uint32_t x[32];
217 	int i;
218 
219 	Decode(x, block, 128);
220 
221 	for(i = 0; i < 8; i++) {
222 		E[i] = state[i];
223 	}
224 	for(i = 0; i < 32; i++) {
225 		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];
226 	}
227 	for(i = 0; i < 32; i++) {
228 		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];
229 	}
230 	for(i = 0; i < 32; i++) {
231 		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];
232 	}
233 	for(i = 0; i < 32; i++) {
234 		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];
235 	}
236 	for(i = 0; i < 32; i++) {
237 		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];
238 	}
239 
240 	/* Update digest */
241 	for(i = 0; i < 8; i++) {
242 		state[i] += E[i];
243 	}
244 
245 	/* Zeroize sensitive information. */
246 	ZEND_SECURE_ZERO((unsigned char*) x, sizeof(x));
247 }
248 /* }}} */
249 
250 #define PHP_HASH_HAVAL_INIT(p,b) \
251 const php_hash_ops php_hash_##p##haval##b##_ops = { \
252 	(php_hash_init_func_t) PHP_##p##HAVAL##b##Init, \
253 	(php_hash_update_func_t) PHP_HAVALUpdate, \
254 	(php_hash_final_func_t) PHP_HAVAL##b##Final, \
255 	(php_hash_copy_func_t) php_hash_copy, \
256 	((b) / 8), 128, sizeof(PHP_HAVAL_CTX), 1 }; \
257 PHP_HASH_API void PHP_##p##HAVAL##b##Init(PHP_HAVAL_CTX *context) \
258 {	int i; context->count[0] = 	context->count[1] = 	0; \
259 	for(i = 0; i < 8; i++) context->state[i] = D0[i]; \
260 	context->passes = p;	context->output = b; \
261 	context->Transform = PHP_##p##HAVALTransform; }
262 
263 PHP_HASH_HAVAL_INIT(3,128)
264 PHP_HASH_HAVAL_INIT(3,160)
265 PHP_HASH_HAVAL_INIT(3,192)
266 PHP_HASH_HAVAL_INIT(3,224)
267 PHP_HASH_HAVAL_INIT(3,256)
268 
269 PHP_HASH_HAVAL_INIT(4,128)
270 PHP_HASH_HAVAL_INIT(4,160)
271 PHP_HASH_HAVAL_INIT(4,192)
272 PHP_HASH_HAVAL_INIT(4,224)
273 PHP_HASH_HAVAL_INIT(4,256)
274 
275 PHP_HASH_HAVAL_INIT(5,128)
276 PHP_HASH_HAVAL_INIT(5,160)
277 PHP_HASH_HAVAL_INIT(5,192)
278 PHP_HASH_HAVAL_INIT(5,224)
279 PHP_HASH_HAVAL_INIT(5,256)
280 
281 /* {{{ PHP_HAVALUpdate
282  */
PHP_HAVALUpdate(PHP_HAVAL_CTX * context,const unsigned char * input,unsigned int inputLen)283 PHP_HASH_API void PHP_HAVALUpdate(PHP_HAVAL_CTX *context, const unsigned char *input, unsigned int inputLen)
284 {
285 	unsigned int i, index, partLen;
286 
287 	/* Compute number of bytes mod 128 */
288 	index = (unsigned int) ((context->count[0] >> 3) & 0x7F);
289 	/* Update number of bits */
290 	if ((context->count[0] += ((uint32_t) inputLen << 3)) < ((uint32_t) inputLen << 3)) {
291 		context->count[1]++;
292 	}
293 	context->count[1] += ((uint32_t) inputLen >> 29);
294 
295 	partLen = 128 - index;
296 
297 	/* Transform as many times as possible.
298 	 */
299 	if (inputLen >= partLen) {
300 		memcpy((unsigned char*) & context->buffer[index], (unsigned char*) input, partLen);
301 		context->Transform(context->state, context->buffer);
302 
303 		for (i = partLen; i + 127 < inputLen; i += 128) {
304 			context->Transform(context->state, &input[i]);
305 		}
306 
307 		index = 0;
308 	} else {
309 		i = 0;
310 	}
311 
312 	/* Buffer remaining input */
313 	memcpy((unsigned char*) &context->buffer[index], (unsigned char*) &input[i], inputLen - i);
314 }
315 /* }}} */
316 
317 #define PHP_HASH_HAVAL_VERSION	0x01
318 
319 /* {{{ PHP_HAVAL128Final
320  */
PHP_HAVAL128Final(unsigned char * digest,PHP_HAVAL_CTX * context)321 PHP_HASH_API void PHP_HAVAL128Final(unsigned char *digest, PHP_HAVAL_CTX * context)
322 {
323 	unsigned char bits[10];
324 	unsigned int index, padLen;
325 
326 	/* Version, Passes, and Digest Length */
327 	bits[0] =	(PHP_HASH_HAVAL_VERSION & 0x07) |
328 				((context->passes & 0x07) << 3) |
329 				((context->output & 0x03) << 6);
330 	bits[1] = (context->output >> 2);
331 
332 	/* Save number of bits */
333 	Encode(bits + 2, context->count, 8);
334 
335 	/* Pad out to 118 mod 128.
336 	 */
337 	index = (unsigned int) ((context->count[0] >> 3) & 0x7f);
338 	padLen = (index < 118) ? (118 - index) : (246 - index);
339 	PHP_HAVALUpdate(context, PADDING, padLen);
340 
341 	/* Append version, passes, digest length, and message length */
342 	PHP_HAVALUpdate(context, bits, 10);
343 
344 	/* Store state in digest */
345 	context->state[3] += (context->state[7] & 0xFF000000) |
346 						 (context->state[6] & 0x00FF0000) |
347 						 (context->state[5] & 0x0000FF00) |
348 						 (context->state[4] & 0x000000FF);
349 
350 	context->state[2] += (((context->state[7] & 0x00FF0000) |
351 						   (context->state[6] & 0x0000FF00) |
352 						   (context->state[5] & 0x000000FF)) << 8) |
353 						  ((context->state[4] & 0xFF000000) >> 24);
354 
355 	context->state[1] += (((context->state[7] & 0x0000FF00) |
356 						   (context->state[6] & 0x000000FF)) << 16) |
357 						 (((context->state[5] & 0xFF000000) |
358 						   (context->state[4] & 0x00FF0000)) >> 16);
359 
360 	context->state[0] +=  ((context->state[7] & 0x000000FF) << 24) |
361 						 (((context->state[6] & 0xFF000000) |
362 						   (context->state[5] & 0x00FF0000) |
363 						   (context->state[4] & 0x0000FF00)) >> 8);
364 
365 	Encode(digest, context->state, 16);
366 
367 	/* Zeroize sensitive information.
368 	 */
369 	ZEND_SECURE_ZERO((unsigned char*) context, sizeof(*context));
370 }
371 /* }}} */
372 
373 /* {{{ PHP_HAVAL160Final
374  */
PHP_HAVAL160Final(unsigned char * digest,PHP_HAVAL_CTX * context)375 PHP_HASH_API void PHP_HAVAL160Final(unsigned char *digest, PHP_HAVAL_CTX * context)
376 {
377 	unsigned char bits[10];
378 	unsigned int index, padLen;
379 
380 	/* Version, Passes, and Digest Length */
381 	bits[0] =	(PHP_HASH_HAVAL_VERSION & 0x07) |
382 				((context->passes & 0x07) << 3) |
383 				((context->output & 0x03) << 6);
384 	bits[1] = (context->output >> 2);
385 
386 	/* Save number of bits */
387 	Encode(bits + 2, context->count, 8);
388 
389 	/* Pad out to 118 mod 128.
390 	 */
391 	index = (unsigned int) ((context->count[0] >> 3) & 0x7f);
392 	padLen = (index < 118) ? (118 - index) : (246 - index);
393 	PHP_HAVALUpdate(context, PADDING, padLen);
394 
395 	/* Append version, passes, digest length, and message length */
396 	PHP_HAVALUpdate(context, bits, 10);
397 
398 	/* Store state in digest */
399 	context->state[4] += ((context->state[7] & 0xFE000000) |
400 						  (context->state[6] & 0x01F80000) |
401 						  (context->state[5] & 0x0007F000)) >> 12;
402 
403 	context->state[3] += ((context->state[7] & 0x01F80000) |
404 						  (context->state[6] & 0x0007F000) |
405 						  (context->state[5] & 0x00000FC0)) >> 6;
406 
407 	context->state[2] +=  (context->state[7] & 0x0007F000) |
408 						  (context->state[6] & 0x00000FC0) |
409 						  (context->state[5] & 0x0000003F);
410 
411 	context->state[1] += ROTR((context->state[7] & 0x00000FC0) |
412 							  (context->state[6] & 0x0000003F) |
413 							  (context->state[5] & 0xFE000000), 25);
414 
415 	context->state[0] += ROTR((context->state[7] & 0x0000003F) |
416 							  (context->state[6] & 0xFE000000) |
417 							  (context->state[5] & 0x01F80000), 19);
418 
419 	Encode(digest, context->state, 20);
420 
421 	/* Zeroize sensitive information.
422 	 */
423 	ZEND_SECURE_ZERO((unsigned char*) context, sizeof(*context));
424 }
425 /* }}} */
426 
427 /* {{{ PHP_HAVAL192Final
428  */
PHP_HAVAL192Final(unsigned char * digest,PHP_HAVAL_CTX * context)429 PHP_HASH_API void PHP_HAVAL192Final(unsigned char *digest, PHP_HAVAL_CTX * context)
430 {
431 	unsigned char bits[10];
432 	unsigned int index, padLen;
433 
434 	/* Version, Passes, and Digest Length */
435 	bits[0] =	(PHP_HASH_HAVAL_VERSION & 0x07) |
436 				((context->passes & 0x07) << 3) |
437 				((context->output & 0x03) << 6);
438 	bits[1] = (context->output >> 2);
439 
440 	/* Save number of bits */
441 	Encode(bits + 2, context->count, 8);
442 
443 	/* Pad out to 118 mod 128.
444 	 */
445 	index = (unsigned int) ((context->count[0] >> 3) & 0x7f);
446 	padLen = (index < 118) ? (118 - index) : (246 - index);
447 	PHP_HAVALUpdate(context, PADDING, padLen);
448 
449 	/* Append version, passes, digest length, and message length */
450 	PHP_HAVALUpdate(context, bits, 10);
451 
452 	/* Store state in digest */
453 	context->state[5] += ((context->state[7] & 0xFC000000) | (context->state[6] & 0x03E00000)) >> 21;
454 	context->state[4] += ((context->state[7] & 0x03E00000) | (context->state[6] & 0x001F0000)) >> 16;
455 	context->state[3] += ((context->state[7] & 0x001F0000) | (context->state[6] & 0x0000FC00)) >> 10;
456 	context->state[2] += ((context->state[7] & 0x0000FC00) | (context->state[6] & 0x000003E0)) >>  5;
457 	context->state[1] +=  (context->state[7] & 0x000003E0) | (context->state[6] & 0x0000001F);
458 	context->state[0] += ROTR((context->state[7] & 0x0000001F) | (context->state[6] & 0xFC000000), 26);
459 	Encode(digest, context->state, 24);
460 
461 	/* Zeroize sensitive information.
462 	 */
463 	ZEND_SECURE_ZERO((unsigned char*) context, sizeof(*context));
464 }
465 /* }}} */
466 
467 /* {{{ PHP_HAVAL224Final
468  */
PHP_HAVAL224Final(unsigned char * digest,PHP_HAVAL_CTX * context)469 PHP_HASH_API void PHP_HAVAL224Final(unsigned char *digest, PHP_HAVAL_CTX * context)
470 {
471 	unsigned char bits[10];
472 	unsigned int index, padLen;
473 
474 	/* Version, Passes, and Digest Length */
475 	bits[0] =	(PHP_HASH_HAVAL_VERSION & 0x07) |
476 				((context->passes & 0x07) << 3) |
477 				((context->output & 0x03) << 6);
478 	bits[1] = (context->output >> 2);
479 
480 	/* Save number of bits */
481 	Encode(bits + 2, context->count, 8);
482 
483 	/* Pad out to 118 mod 128.
484 	 */
485 	index = (unsigned int) ((context->count[0] >> 3) & 0x7f);
486 	padLen = (index < 118) ? (118 - index) : (246 - index);
487 	PHP_HAVALUpdate(context, PADDING, padLen);
488 
489 	/* Append version, passes, digest length, and message length */
490 	PHP_HAVALUpdate(context, bits, 10);
491 
492 	/* Store state in digest */
493 	context->state[6] +=  context->state[7]        & 0x0000000F;
494 	context->state[5] += (context->state[7] >>  4) & 0x0000001F;
495 	context->state[4] += (context->state[7] >>  9) & 0x0000000F;
496 	context->state[3] += (context->state[7] >> 13) & 0x0000001F;
497 	context->state[2] += (context->state[7] >> 18) & 0x0000000F;
498 	context->state[1] += (context->state[7] >> 22) & 0x0000001F;
499 	context->state[0] += (context->state[7] >> 27) & 0x0000001F;
500 	Encode(digest, context->state, 28);
501 
502 	/* Zeroize sensitive information.
503 	 */
504 	ZEND_SECURE_ZERO((unsigned char*) context, sizeof(*context));
505 }
506 /* }}} */
507 
508 /* {{{ PHP_HAVAL256Final
509  */
PHP_HAVAL256Final(unsigned char * digest,PHP_HAVAL_CTX * context)510 PHP_HASH_API void PHP_HAVAL256Final(unsigned char *digest, PHP_HAVAL_CTX * context)
511 {
512 	unsigned char bits[10];
513 	unsigned int index, padLen;
514 
515 	/* Version, Passes, and Digest Length */
516 	bits[0] =	(PHP_HASH_HAVAL_VERSION & 0x07) |
517 				((context->passes & 0x07) << 3) |
518 				((context->output & 0x03) << 6);
519 	bits[1] = (context->output >> 2);
520 
521 	/* Save number of bits */
522 	Encode(bits + 2, context->count, 8);
523 
524 	/* Pad out to 118 mod 128.
525 	 */
526 	index = (unsigned int) ((context->count[0] >> 3) & 0x7f);
527 	padLen = (index < 118) ? (118 - index) : (246 - index);
528 	PHP_HAVALUpdate(context, PADDING, padLen);
529 
530 	/* Append version, passes, digest length, and message length */
531 	PHP_HAVALUpdate(context, bits, 10);
532 
533 	/* Store state in digest */
534 	Encode(digest, context->state, 32);
535 
536 	/* Zeroize sensitive information.
537 	 */
538 	ZEND_SECURE_ZERO((unsigned char*) context, sizeof(*context));
539 }
540 /* }}} */
541 
542 /*
543  * Local variables:
544  * tab-width: 4
545  * c-basic-offset: 4
546  * End:
547  * vim600: sw=4 ts=4 fdm=marker
548  * vim<600: sw=4 ts=4
549  */
550