1 | /* |
2 | +----------------------------------------------------------------------+ |
3 | | PHP Version 5 | |
4 | +----------------------------------------------------------------------+ |
5 | | Copyright (c) 1997-2015 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 | | Taken from: ext/standard/md5.c | |
16 | +----------------------------------------------------------------------+ |
17 | */ |
18 | |
19 | /* $Id$ */ |
20 | |
21 | #include "php_hash.h" |
22 | #include "php_hash_md.h" |
23 | |
24 | const php_hash_ops php_hash_md5_ops = { |
25 | (php_hash_init_func_t) PHP_MD5Init, |
26 | (php_hash_update_func_t) PHP_MD5Update, |
27 | (php_hash_final_func_t) PHP_MD5Final, |
28 | (php_hash_copy_func_t) php_hash_copy, |
29 | 16, |
30 | 64, |
31 | sizeof(PHP_MD5_CTX) |
32 | }; |
33 | |
34 | const php_hash_ops php_hash_md4_ops = { |
35 | (php_hash_init_func_t) PHP_MD4Init, |
36 | (php_hash_update_func_t) PHP_MD4Update, |
37 | (php_hash_final_func_t) PHP_MD4Final, |
38 | (php_hash_copy_func_t) php_hash_copy, |
39 | 16, |
40 | 64, |
41 | sizeof(PHP_MD4_CTX) |
42 | }; |
43 | |
44 | const php_hash_ops php_hash_md2_ops = { |
45 | (php_hash_init_func_t) PHP_MD2Init, |
46 | (php_hash_update_func_t) PHP_MD2Update, |
47 | (php_hash_final_func_t) PHP_MD2Final, |
48 | (php_hash_copy_func_t) php_hash_copy, |
49 | 16, |
50 | 16, |
51 | sizeof(PHP_MD2_CTX) |
52 | }; |
53 | |
54 | /* MD common stuff */ |
55 | |
56 | static const unsigned char PADDING[64] = |
57 | { |
58 | 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
59 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
60 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 |
61 | }; |
62 | |
63 | /* {{{ Encode |
64 | Encodes input (php_hash_uint32) into output (unsigned char). Assumes len is |
65 | a multiple of 4. |
66 | */ |
67 | static void Encode(unsigned char *output, php_hash_uint32 *input, unsigned int len) |
68 | { |
69 | unsigned int i, j; |
70 | |
71 | for (i = 0, j = 0; j < len; i++, j += 4) { |
72 | output[j] = (unsigned char) (input[i] & 0xff); |
73 | output[j + 1] = (unsigned char) ((input[i] >> 8) & 0xff); |
74 | output[j + 2] = (unsigned char) ((input[i] >> 16) & 0xff); |
75 | output[j + 3] = (unsigned char) ((input[i] >> 24) & 0xff); |
76 | } |
77 | } |
78 | /* }}} */ |
79 | |
80 | /* {{{ Decode |
81 | Decodes input (unsigned char) into output (php_hash_uint32). Assumes len is |
82 | a multiple of 4. |
83 | */ |
84 | static void Decode(php_hash_uint32 *output, const unsigned char *input, unsigned int len) |
85 | { |
86 | unsigned int i, j; |
87 | |
88 | for (i = 0, j = 0; j < len; i++, j += 4) |
89 | output[i] = ((php_hash_uint32) input[j]) | (((php_hash_uint32) input[j + 1]) << 8) | |
90 | (((php_hash_uint32) input[j + 2]) << 16) | (((php_hash_uint32) input[j + 3]) << 24); |
91 | } |
92 | /* }}} */ |
93 | |
94 | #ifdef PHP_HASH_MD5_NOT_IN_CORE |
95 | |
96 | /* MD5 */ |
97 | |
98 | PHP_HASH_API void make_digest(char *md5str, unsigned char *digest) |
99 | { |
100 | php_hash_bin2hex(md5str, digest, 16); |
101 | md5str[32] = '\0'; |
102 | } |
103 | |
104 | /* {{{ proto string md5(string str, [ bool raw_output]) |
105 | Calculate the md5 hash of a string */ |
106 | PHP_NAMED_FUNCTION(php_if_md5) |
107 | { |
108 | char *arg; |
109 | int arg_len; |
110 | zend_bool raw_output = 0; |
111 | char md5str[33]; |
112 | PHP_MD5_CTX context; |
113 | unsigned char digest[16]; |
114 | |
115 | if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|b" , &arg, &arg_len, &raw_output) == FAILURE) { |
116 | return; |
117 | } |
118 | |
119 | md5str[0] = '\0'; |
120 | PHP_MD5Init(&context); |
121 | PHP_MD5Update(&context, arg, arg_len); |
122 | PHP_MD5Final(digest, &context); |
123 | if (raw_output) { |
124 | RETURN_STRINGL(digest, 16, 1); |
125 | } else { |
126 | make_digest(md5str, digest); |
127 | RETVAL_STRING(md5str, 1); |
128 | } |
129 | |
130 | } |
131 | /* }}} */ |
132 | |
133 | /* {{{ proto string md5_file(string filename [, bool raw_output]) |
134 | Calculate the md5 hash of given filename */ |
135 | PHP_NAMED_FUNCTION(php_if_md5_file) |
136 | { |
137 | char *arg; |
138 | int arg_len; |
139 | zend_bool raw_output = 0; |
140 | char md5str[33]; |
141 | unsigned char buf[1024]; |
142 | unsigned char digest[16]; |
143 | PHP_MD5_CTX context; |
144 | int n; |
145 | php_stream *stream; |
146 | |
147 | if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "p|b" , &arg, &arg_len, &raw_output) == FAILURE) { |
148 | return; |
149 | } |
150 | |
151 | stream = php_stream_open_wrapper(arg, "rb" , REPORT_ERRORS, NULL); |
152 | if (!stream) { |
153 | RETURN_FALSE; |
154 | } |
155 | |
156 | PHP_MD5Init(&context); |
157 | |
158 | while ((n = php_stream_read(stream, buf, sizeof(buf))) > 0) { |
159 | PHP_MD5Update(&context, buf, n); |
160 | } |
161 | |
162 | PHP_MD5Final(digest, &context); |
163 | |
164 | php_stream_close(stream); |
165 | |
166 | if (n<0) { |
167 | RETURN_FALSE; |
168 | } |
169 | |
170 | if (raw_output) { |
171 | RETURN_STRINGL(digest, 16, 1); |
172 | } else { |
173 | make_digest(md5str, digest); |
174 | RETVAL_STRING(md5str, 1); |
175 | } |
176 | } |
177 | /* }}} */ |
178 | |
179 | /* |
180 | * The remaining code is the reference MD5 code (md5c.c) from rfc1321 |
181 | */ |
182 | /* MD5C.C - RSA Data Security, Inc., MD5 message-digest algorithm |
183 | */ |
184 | |
185 | /* Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All |
186 | rights reserved. |
187 | |
188 | License to copy and use this software is granted provided that it |
189 | is identified as the "RSA Data Security, Inc. MD5 Message-Digest |
190 | Algorithm" in all material mentioning or referencing this software |
191 | or this function. |
192 | |
193 | License is also granted to make and use derivative works provided |
194 | that such works are identified as "derived from the RSA Data |
195 | Security, Inc. MD5 Message-Digest Algorithm" in all material |
196 | mentioning or referencing the derived work. |
197 | |
198 | RSA Data Security, Inc. makes no representations concerning either |
199 | the merchantability of this software or the suitability of this |
200 | software for any particular purpose. It is provided "as is" |
201 | without express or implied warranty of any kind. |
202 | |
203 | These notices must be retained in any copies of any part of this |
204 | documentation and/or software. |
205 | */ |
206 | |
207 | /* Constants for MD5Transform routine. |
208 | */ |
209 | |
210 | #define S11 7 |
211 | #define S12 12 |
212 | #define S13 17 |
213 | #define S14 22 |
214 | #define S21 5 |
215 | #define S22 9 |
216 | #define S23 14 |
217 | #define S24 20 |
218 | #define S31 4 |
219 | #define S32 11 |
220 | #define S33 16 |
221 | #define S34 23 |
222 | #define S41 6 |
223 | #define S42 10 |
224 | #define S43 15 |
225 | #define S44 21 |
226 | |
227 | static void MD5Transform(php_hash_uint32[4], const unsigned char[64]); |
228 | |
229 | /* F, G, H and I are basic MD5 functions. |
230 | */ |
231 | #define F(x, y, z) (((x) & (y)) | ((~x) & (z))) |
232 | #define G(x, y, z) (((x) & (z)) | ((y) & (~z))) |
233 | #define H(x, y, z) ((x) ^ (y) ^ (z)) |
234 | #define I(x, y, z) ((y) ^ ((x) | (~z))) |
235 | |
236 | /* ROTATE_LEFT rotates x left n bits. |
237 | */ |
238 | #define ROTATE_LEFT(x, n) (((x) << (n)) | ((x) >> (32-(n)))) |
239 | |
240 | /* FF, GG, HH, and II transformations for rounds 1, 2, 3, and 4. |
241 | Rotation is separate from addition to prevent recomputation. |
242 | */ |
243 | #define FF(a, b, c, d, x, s, ac) { \ |
244 | (a) += F ((b), (c), (d)) + (x) + (php_hash_uint32)(ac); \ |
245 | (a) = ROTATE_LEFT ((a), (s)); \ |
246 | (a) += (b); \ |
247 | } |
248 | #define GG(a, b, c, d, x, s, ac) { \ |
249 | (a) += G ((b), (c), (d)) + (x) + (php_hash_uint32)(ac); \ |
250 | (a) = ROTATE_LEFT ((a), (s)); \ |
251 | (a) += (b); \ |
252 | } |
253 | #define HH(a, b, c, d, x, s, ac) { \ |
254 | (a) += H ((b), (c), (d)) + (x) + (php_hash_uint32)(ac); \ |
255 | (a) = ROTATE_LEFT ((a), (s)); \ |
256 | (a) += (b); \ |
257 | } |
258 | #define II(a, b, c, d, x, s, ac) { \ |
259 | (a) += I ((b), (c), (d)) + (x) + (php_hash_uint32)(ac); \ |
260 | (a) = ROTATE_LEFT ((a), (s)); \ |
261 | (a) += (b); \ |
262 | } |
263 | |
264 | /* {{{ PHP_MD5Init |
265 | * MD5 initialization. Begins an MD5 operation, writing a new context. |
266 | */ |
267 | PHP_HASH_API void PHP_MD5Init(PHP_MD5_CTX * context) |
268 | { |
269 | context->count[0] = context->count[1] = 0; |
270 | /* Load magic initialization constants. |
271 | */ |
272 | context->state[0] = 0x67452301; |
273 | context->state[1] = 0xefcdab89; |
274 | context->state[2] = 0x98badcfe; |
275 | context->state[3] = 0x10325476; |
276 | } |
277 | /* }}} */ |
278 | |
279 | /* {{{ PHP_MD5Update |
280 | MD5 block update operation. Continues an MD5 message-digest |
281 | operation, processing another message block, and updating the |
282 | context. |
283 | */ |
284 | PHP_HASH_API void PHP_MD5Update(PHP_MD5_CTX * context, const unsigned char *input, |
285 | unsigned int inputLen) |
286 | { |
287 | unsigned int i, index, partLen; |
288 | |
289 | /* Compute number of bytes mod 64 */ |
290 | index = (unsigned int) ((context->count[0] >> 3) & 0x3F); |
291 | |
292 | /* Update number of bits */ |
293 | if ((context->count[0] += ((php_hash_uint32) inputLen << 3)) |
294 | < ((php_hash_uint32) inputLen << 3)) |
295 | context->count[1]++; |
296 | context->count[1] += ((php_hash_uint32) inputLen >> 29); |
297 | |
298 | partLen = 64 - index; |
299 | |
300 | /* Transform as many times as possible. |
301 | */ |
302 | if (inputLen >= partLen) { |
303 | memcpy |
304 | ((unsigned char*) & context->buffer[index], (unsigned char*) input, partLen); |
305 | MD5Transform(context->state, context->buffer); |
306 | |
307 | for (i = partLen; i + 63 < inputLen; i += 64) |
308 | MD5Transform(context->state, &input[i]); |
309 | |
310 | index = 0; |
311 | } else |
312 | i = 0; |
313 | |
314 | /* Buffer remaining input */ |
315 | memcpy |
316 | ((unsigned char*) & context->buffer[index], (unsigned char*) & input[i], |
317 | inputLen - i); |
318 | } |
319 | /* }}} */ |
320 | |
321 | /* {{{ PHP_MD5Final |
322 | MD5 finalization. Ends an MD5 message-digest operation, writing the |
323 | the message digest and zeroizing the context. |
324 | */ |
325 | PHP_HASH_API void PHP_MD5Final(unsigned char digest[16], PHP_MD5_CTX * context) |
326 | { |
327 | unsigned char bits[8]; |
328 | unsigned int index, padLen; |
329 | |
330 | /* Save number of bits */ |
331 | Encode(bits, context->count, 8); |
332 | |
333 | /* Pad out to 56 mod 64. |
334 | */ |
335 | index = (unsigned int) ((context->count[0] >> 3) & 0x3f); |
336 | padLen = (index < 56) ? (56 - index) : (120 - index); |
337 | PHP_MD5Update(context, PADDING, padLen); |
338 | |
339 | /* Append length (before padding) */ |
340 | PHP_MD5Update(context, bits, 8); |
341 | |
342 | /* Store state in digest */ |
343 | Encode(digest, context->state, 16); |
344 | |
345 | /* Zeroize sensitive information. |
346 | */ |
347 | memset((unsigned char*) context, 0, sizeof(*context)); |
348 | } |
349 | /* }}} */ |
350 | |
351 | /* {{{ MD5Transform |
352 | * MD5 basic transformation. Transforms state based on block. |
353 | */ |
354 | static void MD5Transform(state, block) |
355 | php_hash_uint32 state[4]; |
356 | const unsigned char block[64]; |
357 | { |
358 | php_hash_uint32 a = state[0], b = state[1], c = state[2], d = state[3], x[16]; |
359 | |
360 | Decode(x, block, 64); |
361 | |
362 | /* Round 1 */ |
363 | FF(a, b, c, d, x[0], S11, 0xd76aa478); /* 1 */ |
364 | FF(d, a, b, c, x[1], S12, 0xe8c7b756); /* 2 */ |
365 | FF(c, d, a, b, x[2], S13, 0x242070db); /* 3 */ |
366 | FF(b, c, d, a, x[3], S14, 0xc1bdceee); /* 4 */ |
367 | FF(a, b, c, d, x[4], S11, 0xf57c0faf); /* 5 */ |
368 | FF(d, a, b, c, x[5], S12, 0x4787c62a); /* 6 */ |
369 | FF(c, d, a, b, x[6], S13, 0xa8304613); /* 7 */ |
370 | FF(b, c, d, a, x[7], S14, 0xfd469501); /* 8 */ |
371 | FF(a, b, c, d, x[8], S11, 0x698098d8); /* 9 */ |
372 | FF(d, a, b, c, x[9], S12, 0x8b44f7af); /* 10 */ |
373 | FF(c, d, a, b, x[10], S13, 0xffff5bb1); /* 11 */ |
374 | FF(b, c, d, a, x[11], S14, 0x895cd7be); /* 12 */ |
375 | FF(a, b, c, d, x[12], S11, 0x6b901122); /* 13 */ |
376 | FF(d, a, b, c, x[13], S12, 0xfd987193); /* 14 */ |
377 | FF(c, d, a, b, x[14], S13, 0xa679438e); /* 15 */ |
378 | FF(b, c, d, a, x[15], S14, 0x49b40821); /* 16 */ |
379 | |
380 | /* Round 2 */ |
381 | GG(a, b, c, d, x[1], S21, 0xf61e2562); /* 17 */ |
382 | GG(d, a, b, c, x[6], S22, 0xc040b340); /* 18 */ |
383 | GG(c, d, a, b, x[11], S23, 0x265e5a51); /* 19 */ |
384 | GG(b, c, d, a, x[0], S24, 0xe9b6c7aa); /* 20 */ |
385 | GG(a, b, c, d, x[5], S21, 0xd62f105d); /* 21 */ |
386 | GG(d, a, b, c, x[10], S22, 0x2441453); /* 22 */ |
387 | GG(c, d, a, b, x[15], S23, 0xd8a1e681); /* 23 */ |
388 | GG(b, c, d, a, x[4], S24, 0xe7d3fbc8); /* 24 */ |
389 | GG(a, b, c, d, x[9], S21, 0x21e1cde6); /* 25 */ |
390 | GG(d, a, b, c, x[14], S22, 0xc33707d6); /* 26 */ |
391 | GG(c, d, a, b, x[3], S23, 0xf4d50d87); /* 27 */ |
392 | GG(b, c, d, a, x[8], S24, 0x455a14ed); /* 28 */ |
393 | GG(a, b, c, d, x[13], S21, 0xa9e3e905); /* 29 */ |
394 | GG(d, a, b, c, x[2], S22, 0xfcefa3f8); /* 30 */ |
395 | GG(c, d, a, b, x[7], S23, 0x676f02d9); /* 31 */ |
396 | GG(b, c, d, a, x[12], S24, 0x8d2a4c8a); /* 32 */ |
397 | |
398 | /* Round 3 */ |
399 | HH(a, b, c, d, x[5], S31, 0xfffa3942); /* 33 */ |
400 | HH(d, a, b, c, x[8], S32, 0x8771f681); /* 34 */ |
401 | HH(c, d, a, b, x[11], S33, 0x6d9d6122); /* 35 */ |
402 | HH(b, c, d, a, x[14], S34, 0xfde5380c); /* 36 */ |
403 | HH(a, b, c, d, x[1], S31, 0xa4beea44); /* 37 */ |
404 | HH(d, a, b, c, x[4], S32, 0x4bdecfa9); /* 38 */ |
405 | HH(c, d, a, b, x[7], S33, 0xf6bb4b60); /* 39 */ |
406 | HH(b, c, d, a, x[10], S34, 0xbebfbc70); /* 40 */ |
407 | HH(a, b, c, d, x[13], S31, 0x289b7ec6); /* 41 */ |
408 | HH(d, a, b, c, x[0], S32, 0xeaa127fa); /* 42 */ |
409 | HH(c, d, a, b, x[3], S33, 0xd4ef3085); /* 43 */ |
410 | HH(b, c, d, a, x[6], S34, 0x4881d05); /* 44 */ |
411 | HH(a, b, c, d, x[9], S31, 0xd9d4d039); /* 45 */ |
412 | HH(d, a, b, c, x[12], S32, 0xe6db99e5); /* 46 */ |
413 | HH(c, d, a, b, x[15], S33, 0x1fa27cf8); /* 47 */ |
414 | HH(b, c, d, a, x[2], S34, 0xc4ac5665); /* 48 */ |
415 | |
416 | /* Round 4 */ |
417 | II(a, b, c, d, x[0], S41, 0xf4292244); /* 49 */ |
418 | II(d, a, b, c, x[7], S42, 0x432aff97); /* 50 */ |
419 | II(c, d, a, b, x[14], S43, 0xab9423a7); /* 51 */ |
420 | II(b, c, d, a, x[5], S44, 0xfc93a039); /* 52 */ |
421 | II(a, b, c, d, x[12], S41, 0x655b59c3); /* 53 */ |
422 | II(d, a, b, c, x[3], S42, 0x8f0ccc92); /* 54 */ |
423 | II(c, d, a, b, x[10], S43, 0xffeff47d); /* 55 */ |
424 | II(b, c, d, a, x[1], S44, 0x85845dd1); /* 56 */ |
425 | II(a, b, c, d, x[8], S41, 0x6fa87e4f); /* 57 */ |
426 | II(d, a, b, c, x[15], S42, 0xfe2ce6e0); /* 58 */ |
427 | II(c, d, a, b, x[6], S43, 0xa3014314); /* 59 */ |
428 | II(b, c, d, a, x[13], S44, 0x4e0811a1); /* 60 */ |
429 | II(a, b, c, d, x[4], S41, 0xf7537e82); /* 61 */ |
430 | II(d, a, b, c, x[11], S42, 0xbd3af235); /* 62 */ |
431 | II(c, d, a, b, x[2], S43, 0x2ad7d2bb); /* 63 */ |
432 | II(b, c, d, a, x[9], S44, 0xeb86d391); /* 64 */ |
433 | |
434 | state[0] += a; |
435 | state[1] += b; |
436 | state[2] += c; |
437 | state[3] += d; |
438 | |
439 | /* Zeroize sensitive information. */ |
440 | memset((unsigned char*) x, 0, sizeof(x)); |
441 | } |
442 | /* }}} */ |
443 | |
444 | #endif /* PHP_HASH_MD5_NOT_IN_CORE */ |
445 | |
446 | /* MD4 */ |
447 | |
448 | #define MD4_F(x,y,z) ((z) ^ ((x) & ((y) ^ (z)))) |
449 | #define MD4_G(x,y,z) (((x) & ((y) | (z))) | ((y) & (z))) |
450 | #define MD4_H(x,y,z) ((x) ^ (y) ^ (z)) |
451 | |
452 | #define ROTL32(s,v) (((v) << (s)) | ((v) >> (32 - (s)))) |
453 | |
454 | #define MD4_R1(a,b,c,d,k,s) a = ROTL32(s, a + MD4_F(b,c,d) + x[k]) |
455 | #define MD4_R2(a,b,c,d,k,s) a = ROTL32(s, a + MD4_G(b,c,d) + x[k] + 0x5A827999) |
456 | #define MD4_R3(a,b,c,d,k,s) a = ROTL32(s, a + MD4_H(b,c,d) + x[k] + 0x6ED9EBA1) |
457 | |
458 | static void MD4Transform(php_hash_uint32 state[4], const unsigned char block[64]) |
459 | { |
460 | php_hash_uint32 a = state[0], b = state[1], c = state[2], d = state[3], x[16]; |
461 | |
462 | Decode(x, block, 64); |
463 | |
464 | /* Round 1 */ |
465 | MD4_R1(a,b,c,d, 0, 3); |
466 | MD4_R1(d,a,b,c, 1, 7); |
467 | MD4_R1(c,d,a,b, 2,11); |
468 | MD4_R1(b,c,d,a, 3,19); |
469 | MD4_R1(a,b,c,d, 4, 3); |
470 | MD4_R1(d,a,b,c, 5, 7); |
471 | MD4_R1(c,d,a,b, 6,11); |
472 | MD4_R1(b,c,d,a, 7,19); |
473 | MD4_R1(a,b,c,d, 8, 3); |
474 | MD4_R1(d,a,b,c, 9, 7); |
475 | MD4_R1(c,d,a,b,10,11); |
476 | MD4_R1(b,c,d,a,11,19); |
477 | MD4_R1(a,b,c,d,12, 3); |
478 | MD4_R1(d,a,b,c,13, 7); |
479 | MD4_R1(c,d,a,b,14,11); |
480 | MD4_R1(b,c,d,a,15,19); |
481 | |
482 | /* Round 2 */ |
483 | MD4_R2(a,b,c,d, 0, 3); |
484 | MD4_R2(d,a,b,c, 4, 5); |
485 | MD4_R2(c,d,a,b, 8, 9); |
486 | MD4_R2(b,c,d,a,12,13); |
487 | MD4_R2(a,b,c,d, 1, 3); |
488 | MD4_R2(d,a,b,c, 5, 5); |
489 | MD4_R2(c,d,a,b, 9, 9); |
490 | MD4_R2(b,c,d,a,13,13); |
491 | MD4_R2(a,b,c,d, 2, 3); |
492 | MD4_R2(d,a,b,c, 6, 5); |
493 | MD4_R2(c,d,a,b,10, 9); |
494 | MD4_R2(b,c,d,a,14,13); |
495 | MD4_R2(a,b,c,d, 3, 3); |
496 | MD4_R2(d,a,b,c, 7, 5); |
497 | MD4_R2(c,d,a,b,11, 9); |
498 | MD4_R2(b,c,d,a,15,13); |
499 | |
500 | /* Round 3 */ |
501 | MD4_R3(a,b,c,d, 0, 3); |
502 | MD4_R3(d,a,b,c, 8, 9); |
503 | MD4_R3(c,d,a,b, 4,11); |
504 | MD4_R3(b,c,d,a,12,15); |
505 | MD4_R3(a,b,c,d, 2, 3); |
506 | MD4_R3(d,a,b,c,10, 9); |
507 | MD4_R3(c,d,a,b, 6,11); |
508 | MD4_R3(b,c,d,a,14,15); |
509 | MD4_R3(a,b,c,d, 1, 3); |
510 | MD4_R3(d,a,b,c, 9, 9); |
511 | MD4_R3(c,d,a,b, 5,11); |
512 | MD4_R3(b,c,d,a,13,15); |
513 | MD4_R3(a,b,c,d, 3, 3); |
514 | MD4_R3(d,a,b,c,11, 9); |
515 | MD4_R3(c,d,a,b, 7,11); |
516 | MD4_R3(b,c,d,a,15,15); |
517 | |
518 | state[0] += a; |
519 | state[1] += b; |
520 | state[2] += c; |
521 | state[3] += d; |
522 | } |
523 | |
524 | /* {{{ PHP_MD4Init |
525 | * MD4 initialization. Begins an MD4 operation, writing a new context. |
526 | */ |
527 | PHP_HASH_API void PHP_MD4Init(PHP_MD4_CTX * context) |
528 | { |
529 | context->count[0] = context->count[1] = 0; |
530 | /* Load magic initialization constants. |
531 | */ |
532 | context->state[0] = 0x67452301; |
533 | context->state[1] = 0xefcdab89; |
534 | context->state[2] = 0x98badcfe; |
535 | context->state[3] = 0x10325476; |
536 | } |
537 | /* }}} */ |
538 | |
539 | /* {{{ PHP_MD4Update |
540 | MD4 block update operation. Continues an MD4 message-digest |
541 | operation, processing another message block, and updating the |
542 | context. |
543 | */ |
544 | PHP_HASH_API void PHP_MD4Update(PHP_MD4_CTX * context, const unsigned char *input, unsigned int inputLen) |
545 | { |
546 | unsigned int i, index, partLen; |
547 | |
548 | /* Compute number of bytes mod 64 */ |
549 | index = (unsigned int) ((context->count[0] >> 3) & 0x3F); |
550 | |
551 | /* Update number of bits */ |
552 | if ((context->count[0] += ((php_hash_uint32) inputLen << 3)) |
553 | < ((php_hash_uint32) inputLen << 3)) |
554 | context->count[1]++; |
555 | context->count[1] += ((php_hash_uint32) inputLen >> 29); |
556 | |
557 | partLen = 64 - index; |
558 | |
559 | /* Transform as many times as possible. |
560 | */ |
561 | if (inputLen >= partLen) { |
562 | memcpy((unsigned char*) & context->buffer[index], (unsigned char*) input, partLen); |
563 | MD4Transform(context->state, context->buffer); |
564 | |
565 | for (i = partLen; i + 63 < inputLen; i += 64) { |
566 | MD4Transform(context->state, &input[i]); |
567 | } |
568 | |
569 | index = 0; |
570 | } else { |
571 | i = 0; |
572 | } |
573 | |
574 | /* Buffer remaining input */ |
575 | memcpy((unsigned char*) & context->buffer[index], (unsigned char*) & input[i], inputLen - i); |
576 | } |
577 | /* }}} */ |
578 | |
579 | /* {{{ PHP_MD4Final |
580 | MD4 finalization. Ends an MD4 message-digest operation, writing the |
581 | the message digest and zeroizing the context. |
582 | */ |
583 | PHP_HASH_API void PHP_MD4Final(unsigned char digest[16], PHP_MD4_CTX * context) |
584 | { |
585 | unsigned char bits[8]; |
586 | unsigned int index, padLen; |
587 | |
588 | /* Save number of bits */ |
589 | Encode(bits, context->count, 8); |
590 | |
591 | /* Pad out to 56 mod 64. |
592 | */ |
593 | index = (unsigned int) ((context->count[0] >> 3) & 0x3f); |
594 | padLen = (index < 56) ? (56 - index) : (120 - index); |
595 | PHP_MD4Update(context, PADDING, padLen); |
596 | |
597 | /* Append length (before padding) */ |
598 | PHP_MD4Update(context, bits, 8); |
599 | |
600 | /* Store state in digest */ |
601 | Encode(digest, context->state, 16); |
602 | |
603 | /* Zeroize sensitive information. |
604 | */ |
605 | memset((unsigned char*) context, 0, sizeof(*context)); |
606 | } |
607 | /* }}} */ |
608 | |
609 | /* MD2 */ |
610 | |
611 | static const unsigned char MD2_S[256] = { |
612 | 41, 46, 67, 201, 162, 216, 124, 1, 61, 54, 84, 161, 236, 240, 6, 19, |
613 | 98, 167, 5, 243, 192, 199, 115, 140, 152, 147, 43, 217, 188, 76, 130, 202, |
614 | 30, 155, 87, 60, 253, 212, 224, 22, 103, 66, 111, 24, 138, 23, 229, 18, |
615 | 190, 78, 196, 214, 218, 158, 222, 73, 160, 251, 245, 142, 187, 47, 238, 122, |
616 | 169, 104, 121, 145, 21, 178, 7, 63, 148, 194, 16, 137, 11, 34, 95, 33, |
617 | 128, 127, 93, 154, 90, 144, 50, 39, 53, 62, 204, 231, 191, 247, 151, 3, |
618 | 255, 25, 48, 179, 72, 165, 181, 209, 215, 94, 146, 42, 172, 86, 170, 198, |
619 | 79, 184, 56, 210, 150, 164, 125, 182, 118, 252, 107, 226, 156, 116, 4, 241, |
620 | 69, 157, 112, 89, 100, 113, 135, 32, 134, 91, 207, 101, 230, 45, 168, 2, |
621 | 27, 96, 37, 173, 174, 176, 185, 246, 28, 70, 97, 105, 52, 64, 126, 15, |
622 | 85, 71, 163, 35, 221, 81, 175, 58, 195, 92, 249, 206, 186, 197, 234, 38, |
623 | 44, 83, 13, 110, 133, 40, 132, 9, 211, 223, 205, 244, 65, 129, 77, 82, |
624 | 106, 220, 55, 200, 108, 193, 171, 250, 36, 225, 123, 8, 12, 189, 177, 74, |
625 | 120, 136, 149, 139, 227, 99, 232, 109, 233, 203, 213, 254, 59, 0, 29, 57, |
626 | 242, 239, 183, 14, 102, 88, 208, 228, 166, 119, 114, 248, 235, 117, 75, 10, |
627 | 49, 68, 80, 180, 143, 237, 31, 26, 219, 153, 141, 51, 159, 17, 131, 20 }; |
628 | |
629 | PHP_HASH_API void PHP_MD2Init(PHP_MD2_CTX *context) |
630 | { |
631 | memset(context, 0, sizeof(PHP_MD2_CTX)); |
632 | } |
633 | |
634 | static void MD2_Transform(PHP_MD2_CTX *context, const unsigned char *block) |
635 | { |
636 | unsigned char i,j,t = 0; |
637 | |
638 | for(i = 0; i < 16; i++) { |
639 | context->state[16+i] = block[i]; |
640 | context->state[32+i] = (context->state[16+i] ^ context->state[i]); |
641 | } |
642 | |
643 | for(i = 0; i < 18; i++) { |
644 | for(j = 0; j < 48; j++) { |
645 | t = context->state[j] = context->state[j] ^ MD2_S[t]; |
646 | } |
647 | t += i; |
648 | } |
649 | |
650 | /* Update checksum -- must be after transform to avoid fouling up last message block */ |
651 | t = context->checksum[15]; |
652 | for(i = 0; i < 16; i++) { |
653 | t = context->checksum[i] ^= MD2_S[block[i] ^ t]; |
654 | } |
655 | } |
656 | |
657 | PHP_HASH_API void PHP_MD2Update(PHP_MD2_CTX *context, const unsigned char *buf, unsigned int len) |
658 | { |
659 | const unsigned char *p = buf, *e = buf + len; |
660 | |
661 | if (context->in_buffer) { |
662 | if (context->in_buffer + len < 16) { |
663 | /* Not enough for block, just pass into buffer */ |
664 | memcpy(context->buffer + context->in_buffer, p, len); |
665 | context->in_buffer += len; |
666 | return; |
667 | } |
668 | /* Put buffered data together with inbound for a single block */ |
669 | memcpy(context->buffer + context->in_buffer, p, 16 - context->in_buffer); |
670 | MD2_Transform(context, context->buffer); |
671 | p += 16 - context->in_buffer; |
672 | context->in_buffer = 0; |
673 | } |
674 | |
675 | /* Process as many whole blocks as remain */ |
676 | while ((p + 16) <= e) { |
677 | MD2_Transform(context, p); |
678 | p += 16; |
679 | } |
680 | |
681 | /* Copy remaining data to buffer */ |
682 | if (p < e) { |
683 | memcpy(context->buffer, p, e - p); |
684 | context->in_buffer = e - p; |
685 | } |
686 | } |
687 | |
688 | PHP_HASH_API void PHP_MD2Final(unsigned char output[16], PHP_MD2_CTX *context) |
689 | { |
690 | memset(context->buffer + context->in_buffer, 16 - context->in_buffer, 16 - context->in_buffer); |
691 | MD2_Transform(context, context->buffer); |
692 | MD2_Transform(context, context->checksum); |
693 | |
694 | memcpy(output, context->state, 16); |
695 | } |
696 | |
697 | /* |
698 | * Local variables: |
699 | * tab-width: 4 |
700 | * c-basic-offset: 4 |
701 | * End: |
702 | * vim600: sw=4 ts=4 fdm=marker |
703 | * vim<600: sw=4 ts=4 |
704 | */ |
705 | |