1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
|
/*
+----------------------------------------------------------------------+
| PHP Version 7 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2016 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Michael Wallner <mike@php.net> |
| Sara Golemon <pollita@php.net> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#include "php_hash.h"
#include "php_hash_tiger.h"
#include "php_hash_tiger_tables.h"
#if (defined(__APPLE__) || defined(__APPLE_CC__)) && (defined(__BIG_ENDIAN__) || defined(__LITTLE_ENDIAN__))
# if defined(__LITTLE_ENDIAN__)
# undef WORDS_BIGENDIAN
# else
# if defined(__BIG_ENDIAN__)
# define WORDS_BIGENDIAN
# endif
# endif
#endif
/* {{{ */
#define save_abc \
aa = a; \
bb = b; \
cc = c;
#define round(a,b,c,x,mul) \
c ^= x; \
a -= t1[(unsigned char)(c)] ^ \
t2[(unsigned char)(((uint32_t)(c))>>(2*8))] ^ \
t3[(unsigned char)((c)>>(4*8))] ^ \
t4[(unsigned char)(((uint32_t)((c)>>(4*8)))>>(2*8))] ; \
b += t4[(unsigned char)(((uint32_t)(c))>>(1*8))] ^ \
t3[(unsigned char)(((uint32_t)(c))>>(3*8))] ^ \
t2[(unsigned char)(((uint32_t)((c)>>(4*8)))>>(1*8))] ^ \
t1[(unsigned char)(((uint32_t)((c)>>(4*8)))>>(3*8))]; \
b *= mul;
#define pass(a,b,c,mul) \
round(a,b,c,x0,mul) \
round(b,c,a,x1,mul) \
round(c,a,b,x2,mul) \
round(a,b,c,x3,mul) \
round(b,c,a,x4,mul) \
round(c,a,b,x5,mul) \
round(a,b,c,x6,mul) \
round(b,c,a,x7,mul)
#define key_schedule \
x0 -= x7 ^ L64(0xA5A5A5A5A5A5A5A5); \
x1 ^= x0; \
x2 += x1; \
x3 -= x2 ^ ((~x1)<<19); \
x4 ^= x3; \
x5 += x4; \
x6 -= x5 ^ ((~x4)>>23); \
x7 ^= x6; \
x0 += x7; \
x1 -= x0 ^ ((~x7)<<19); \
x2 ^= x1; \
x3 += x2; \
x4 -= x3 ^ ((~x2)>>23); \
x5 ^= x4; \
x6 += x5; \
x7 -= x6 ^ L64(0x0123456789ABCDEF);
#define feedforward \
a ^= aa; \
b -= bb; \
c += cc;
#define compress(passes) \
save_abc \
pass(a,b,c,5) \
key_schedule \
pass(c,a,b,7) \
key_schedule \
pass(b,c,a,9) \
for(pass_no=0; pass_no<passes; pass_no++) { \
key_schedule \
pass(a,b,c,9) \
tmpa=a; a=c; c=b; b=tmpa; \
} \
feedforward
#define split_ex(str) \
x0=str[0]; x1=str[1]; x2=str[2]; x3=str[3]; \
x4=str[4]; x5=str[5]; x6=str[6]; x7=str[7];
#ifdef WORDS_BIGENDIAN
# define split(str) \
{ \
int i; \
uint64_t tmp[8]; \
\
for (i = 0; i < 64; ++i) { \
((unsigned char *) tmp)[i^7] = ((unsigned char *) str)[i]; \
} \
split_ex(tmp); \
}
#else
# define split split_ex
#endif
#define tiger_compress(passes, str, state) \
{ \
register uint64_t a, b, c, tmpa, x0, x1, x2, x3, x4, x5, x6, x7; \
uint64_t aa, bb, cc; \
unsigned int pass_no; \
\
a = state[0]; \
b = state[1]; \
c = state[2]; \
\
split(str); \
\
compress(passes); \
\
state[0] = a; \
state[1] = b; \
state[2] = c; \
}
/* }}} */
static inline void TigerFinalize(PHP_TIGER_CTX *context)
{
context->passed += (uint64_t) context->length << 3;
context->buffer[context->length++] = 0x1;
if (context->length % 8) {
memset(&context->buffer[context->length], 0, 8-context->length%8);
context->length += 8-context->length%8;
}
if (context->length > 56) {
memset(&context->buffer[context->length], 0, 64 - context->length);
tiger_compress(context->passes, ((uint64_t *) context->buffer), context->state);
memset(context->buffer, 0, 56);
} else {
memset(&context->buffer[context->length], 0, 56 - context->length);
}
#ifndef WORDS_BIGENDIAN
memcpy(&context->buffer[56], &context->passed, sizeof(uint64_t));
#else
context->buffer[56] = (unsigned char) (context->passed & 0xff);
context->buffer[57] = (unsigned char) ((context->passed >> 8) & 0xff);
context->buffer[58] = (unsigned char) ((context->passed >> 16) & 0xff);
context->buffer[59] = (unsigned char) ((context->passed >> 24) & 0xff);
context->buffer[60] = (unsigned char) ((context->passed >> 32) & 0xff);
context->buffer[61] = (unsigned char) ((context->passed >> 40) & 0xff);
context->buffer[62] = (unsigned char) ((context->passed >> 48) & 0xff);
context->buffer[63] = (unsigned char) ((context->passed >> 56) & 0xff);
#endif
tiger_compress(context->passes, ((uint64_t *) context->buffer), context->state);
}
static inline void TigerDigest(unsigned char *digest_str, unsigned int digest_len, PHP_TIGER_CTX *context)
{
unsigned int i;
for (i = 0; i < digest_len; ++i) {
digest_str[i] = (unsigned char) ((context->state[i/8] >> (8 * (i%8))) & 0xff);
}
}
PHP_HASH_API void PHP_3TIGERInit(PHP_TIGER_CTX *context)
{
memset(context, 0, sizeof(*context));
context->state[0] = L64(0x0123456789ABCDEF);
context->state[1] = L64(0xFEDCBA9876543210);
context->state[2] = L64(0xF096A5B4C3B2E187);
}
PHP_HASH_API void PHP_4TIGERInit(PHP_TIGER_CTX *context)
{
memset(context, 0, sizeof(*context));
context->passes = 1;
context->state[0] = L64(0x0123456789ABCDEF);
context->state[1] = L64(0xFEDCBA9876543210);
context->state[2] = L64(0xF096A5B4C3B2E187);
}
PHP_HASH_API void PHP_TIGERUpdate(PHP_TIGER_CTX *context, const unsigned char *input, size_t len)
{
if (context->length + len < 64) {
memcpy(&context->buffer[context->length], input, len);
context->length += len;
} else {
size_t i = 0, r = (context->length + len) % 64;
if (context->length) {
i = 64 - context->length;
memcpy(&context->buffer[context->length], input, i);
tiger_compress(context->passes, ((const uint64_t *) context->buffer), context->state);
ZEND_SECURE_ZERO(context->buffer, 64);
context->passed += 512;
}
for (; i + 64 <= len; i += 64) {
memcpy(context->buffer, &input[i], 64);
tiger_compress(context->passes, ((const uint64_t *) context->buffer), context->state);
context->passed += 512;
}
ZEND_SECURE_ZERO(&context->buffer[r], 64-r);
memcpy(context->buffer, &input[i], r);
context->length = r;
}
}
PHP_HASH_API void PHP_TIGER128Final(unsigned char digest[16], PHP_TIGER_CTX *context)
{
TigerFinalize(context);
TigerDigest(digest, 16, context);
ZEND_SECURE_ZERO(context, sizeof(*context));
}
PHP_HASH_API void PHP_TIGER160Final(unsigned char digest[20], PHP_TIGER_CTX *context)
{
TigerFinalize(context);
TigerDigest(digest, 20, context);
ZEND_SECURE_ZERO(context, sizeof(*context));
}
PHP_HASH_API void PHP_TIGER192Final(unsigned char digest[24], PHP_TIGER_CTX *context)
{
TigerFinalize(context);
TigerDigest(digest, 24, context);
ZEND_SECURE_ZERO(context, sizeof(*context));
}
#define PHP_HASH_TIGER_OPS(p, b) \
const php_hash_ops php_hash_##p##tiger##b##_ops = { \
(php_hash_init_func_t) PHP_##p##TIGERInit, \
(php_hash_update_func_t) PHP_TIGERUpdate, \
(php_hash_final_func_t) PHP_TIGER##b##Final, \
(php_hash_copy_func_t) php_hash_copy, \
b/8, \
64, \
sizeof(PHP_TIGER_CTX) \
}
PHP_HASH_TIGER_OPS(3, 128);
PHP_HASH_TIGER_OPS(3, 160);
PHP_HASH_TIGER_OPS(3, 192);
PHP_HASH_TIGER_OPS(4, 128);
PHP_HASH_TIGER_OPS(4, 160);
PHP_HASH_TIGER_OPS(4, 192);
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
* vim600: sw=4 ts=4 fdm=marker
* vim<600: sw=4 ts=4
*/
|
