1 /*
2 +----------------------------------------------------------------------+
3 | Copyright (c) The PHP Group |
4 +----------------------------------------------------------------------+
5 | This source file is subject to version 3.01 of the PHP license, |
6 | that is bundled with this package in the file LICENSE, and is |
7 | available through the world-wide-web at the following url: |
8 | https://www.php.net/license/3_01.txt |
9 | If you did not receive a copy of the PHP license and are unable to |
10 | obtain it through the world-wide-web, please send a note to |
11 | license@php.net so we can mail you a copy immediately. |
12 +----------------------------------------------------------------------+
13 | Authors: Anthony Ferrara <ircmaxell@php.net> |
14 | Charles R. Portwood II <charlesportwoodii@erianna.com> |
15 +----------------------------------------------------------------------+
16 */
17
18 #include <stdlib.h>
19
20 #include "php.h"
21
22 #include "fcntl.h"
23 #include "php_password.h"
24 #include "php_crypt.h"
25 #include "base64.h"
26 #include "zend_interfaces.h"
27 #include "info.h"
28 #include "ext/random/php_random_csprng.h"
29 #include "password_arginfo.h"
30 #ifdef HAVE_ARGON2LIB
31 #include "argon2.h"
32 #endif
33
34 #ifdef PHP_WIN32
35 #include "win32/winutil.h"
36 #endif
37
38 static zend_array php_password_algos;
39
php_password_algo_register(const char * ident,const php_password_algo * algo)40 int php_password_algo_register(const char *ident, const php_password_algo *algo) {
41 zend_string *key = zend_string_init_interned(ident, strlen(ident), 1);
42 return zend_hash_add_ptr(&php_password_algos, key, (void *) algo) ? SUCCESS : FAILURE;
43 }
44
php_password_algo_unregister(const char * ident)45 void php_password_algo_unregister(const char *ident) {
46 zend_hash_str_del(&php_password_algos, ident, strlen(ident));
47 }
48
php_password_salt_to64(const char * str,const size_t str_len,const size_t out_len,char * ret)49 static int php_password_salt_to64(const char *str, const size_t str_len, const size_t out_len, char *ret) /* {{{ */
50 {
51 size_t pos = 0;
52 zend_string *buffer;
53 if ((int) str_len < 0) {
54 return FAILURE;
55 }
56 buffer = php_base64_encode((unsigned char*) str, str_len);
57 if (ZSTR_LEN(buffer) < out_len) {
58 /* Too short of an encoded string generated */
59 zend_string_release_ex(buffer, 0);
60 return FAILURE;
61 }
62 for (pos = 0; pos < out_len; pos++) {
63 if (ZSTR_VAL(buffer)[pos] == '+') {
64 ret[pos] = '.';
65 } else if (ZSTR_VAL(buffer)[pos] == '=') {
66 zend_string_free(buffer);
67 return FAILURE;
68 } else {
69 ret[pos] = ZSTR_VAL(buffer)[pos];
70 }
71 }
72 zend_string_free(buffer);
73 return SUCCESS;
74 }
75 /* }}} */
76
php_password_make_salt(size_t length)77 static zend_string* php_password_make_salt(size_t length) /* {{{ */
78 {
79 zend_string *ret, *buffer;
80
81 if (length > (INT_MAX / 3)) {
82 zend_value_error("Length is too large to safely generate");
83 return NULL;
84 }
85
86 buffer = zend_string_alloc(length * 3 / 4 + 1, 0);
87 if (FAILURE == php_random_bytes_throw(ZSTR_VAL(buffer), ZSTR_LEN(buffer))) {
88 zend_value_error("Unable to generate salt");
89 zend_string_release_ex(buffer, 0);
90 return NULL;
91 }
92
93 ret = zend_string_alloc(length, 0);
94 if (php_password_salt_to64(ZSTR_VAL(buffer), ZSTR_LEN(buffer), length, ZSTR_VAL(ret)) == FAILURE) {
95 zend_value_error("Generated salt too short");
96 zend_string_release_ex(buffer, 0);
97 zend_string_release_ex(ret, 0);
98 return NULL;
99 }
100 zend_string_release_ex(buffer, 0);
101 ZSTR_VAL(ret)[length] = 0;
102 return ret;
103 }
104 /* }}} */
105
php_password_get_salt(zval * unused_,size_t required_salt_len,HashTable * options)106 static zend_string* php_password_get_salt(zval *unused_, size_t required_salt_len, HashTable *options) {
107 if (options && zend_hash_str_exists(options, "salt", sizeof("salt") - 1)) {
108 php_error_docref(NULL, E_WARNING, "The \"salt\" option has been ignored, since providing a custom salt is no longer supported");
109 }
110
111 return php_password_make_salt(required_salt_len);
112 }
113
114 /* bcrypt implementation */
115
php_password_bcrypt_valid(const zend_string * hash)116 static bool php_password_bcrypt_valid(const zend_string *hash) {
117 const char *h = ZSTR_VAL(hash);
118 return (ZSTR_LEN(hash) == 60) &&
119 (h[0] == '$') && (h[1] == '2') && (h[2] == 'y');
120 }
121
php_password_bcrypt_get_info(zval * return_value,const zend_string * hash)122 static int php_password_bcrypt_get_info(zval *return_value, const zend_string *hash) {
123 zend_long cost = PHP_PASSWORD_BCRYPT_COST;
124
125 if (!php_password_bcrypt_valid(hash)) {
126 /* Should never get called this way. */
127 return FAILURE;
128 }
129
130 sscanf(ZSTR_VAL(hash), "$2y$" ZEND_LONG_FMT "$", &cost);
131 add_assoc_long(return_value, "cost", cost);
132
133 return SUCCESS;
134 }
135
php_password_bcrypt_needs_rehash(const zend_string * hash,zend_array * options)136 static bool php_password_bcrypt_needs_rehash(const zend_string *hash, zend_array *options) {
137 zval *znew_cost;
138 zend_long old_cost = PHP_PASSWORD_BCRYPT_COST;
139 zend_long new_cost = PHP_PASSWORD_BCRYPT_COST;
140
141 if (!php_password_bcrypt_valid(hash)) {
142 /* Should never get called this way. */
143 return 1;
144 }
145
146 sscanf(ZSTR_VAL(hash), "$2y$" ZEND_LONG_FMT "$", &old_cost);
147 if (options && (znew_cost = zend_hash_str_find(options, "cost", sizeof("cost")-1)) != NULL) {
148 new_cost = zval_get_long(znew_cost);
149 }
150
151 return old_cost != new_cost;
152 }
153
php_password_bcrypt_verify(const zend_string * password,const zend_string * hash)154 static bool php_password_bcrypt_verify(const zend_string *password, const zend_string *hash) {
155 int status = 0;
156 zend_string *ret = php_crypt(ZSTR_VAL(password), (int)ZSTR_LEN(password), ZSTR_VAL(hash), (int)ZSTR_LEN(hash), 1);
157
158 if (!ret) {
159 return 0;
160 }
161
162 if (ZSTR_LEN(hash) < 13) {
163 zend_string_free(ret);
164 return 0;
165 }
166
167 /* We're using this method instead of == in order to provide
168 * resistance towards timing attacks. This is a constant time
169 * equality check that will always check every byte of both
170 * values. */
171 status = php_safe_bcmp(ret, hash);
172
173 zend_string_free(ret);
174 return status == 0;
175 }
176
php_password_bcrypt_hash(const zend_string * password,zend_array * options)177 static zend_string* php_password_bcrypt_hash(const zend_string *password, zend_array *options) {
178 char hash_format[10];
179 size_t hash_format_len;
180 zend_string *result, *hash, *salt;
181 zval *zcost;
182 zend_long cost = PHP_PASSWORD_BCRYPT_COST;
183
184 if (memchr(ZSTR_VAL(password), '\0', ZSTR_LEN(password))) {
185 zend_value_error("Bcrypt password must not contain null character");
186 return NULL;
187 }
188
189 if (options && (zcost = zend_hash_str_find(options, "cost", sizeof("cost")-1)) != NULL) {
190 cost = zval_get_long(zcost);
191 }
192
193 if (cost < 4 || cost > 31) {
194 zend_value_error("Invalid bcrypt cost parameter specified: " ZEND_LONG_FMT, cost);
195 return NULL;
196 }
197
198 hash_format_len = snprintf(hash_format, sizeof(hash_format), "$2y$%02" ZEND_LONG_FMT_SPEC "$", cost);
199 if (!(salt = php_password_get_salt(NULL, Z_UL(22), options))) {
200 return NULL;
201 }
202 ZSTR_VAL(salt)[ZSTR_LEN(salt)] = 0;
203
204 hash = zend_string_alloc(ZSTR_LEN(salt) + hash_format_len, 0);
205 sprintf(ZSTR_VAL(hash), "%s%s", hash_format, ZSTR_VAL(salt));
206 ZSTR_VAL(hash)[hash_format_len + ZSTR_LEN(salt)] = 0;
207
208 zend_string_release_ex(salt, 0);
209
210 /* This cast is safe, since both values are defined here in code and cannot overflow */
211 result = php_crypt(ZSTR_VAL(password), (int)ZSTR_LEN(password), ZSTR_VAL(hash), (int)ZSTR_LEN(hash), 1);
212 zend_string_release_ex(hash, 0);
213
214 if (!result) {
215 return NULL;
216 }
217
218 if (ZSTR_LEN(result) < 13) {
219 zend_string_free(result);
220 return NULL;
221 }
222
223 return result;
224 }
225
226 const php_password_algo php_password_algo_bcrypt = {
227 "bcrypt",
228 php_password_bcrypt_hash,
229 php_password_bcrypt_verify,
230 php_password_bcrypt_needs_rehash,
231 php_password_bcrypt_get_info,
232 php_password_bcrypt_valid,
233 };
234
235
236 #ifdef HAVE_ARGON2LIB
237 /* argon2i/argon2id shared implementation */
238
extract_argon2_parameters(const zend_string * hash,zend_long * v,zend_long * memory_cost,zend_long * time_cost,zend_long * threads)239 static int extract_argon2_parameters(const zend_string *hash,
240 zend_long *v, zend_long *memory_cost,
241 zend_long *time_cost, zend_long *threads) /* {{{ */
242 {
243 const char *p = ZSTR_VAL(hash);
244 if (!hash || (ZSTR_LEN(hash) < sizeof("$argon2id$"))) {
245 return FAILURE;
246 }
247 if (!memcmp(p, "$argon2i$", sizeof("$argon2i$") - 1)) {
248 p += sizeof("$argon2i$") - 1;
249 } else if (!memcmp(p, "$argon2id$", sizeof("$argon2id$") - 1)) {
250 p += sizeof("$argon2id$") - 1;
251 } else {
252 return FAILURE;
253 }
254
255 sscanf(p, "v=" ZEND_LONG_FMT "$m=" ZEND_LONG_FMT ",t=" ZEND_LONG_FMT ",p=" ZEND_LONG_FMT,
256 v, memory_cost, time_cost, threads);
257
258 return SUCCESS;
259 }
260 /* }}} */
261
php_password_argon2_get_info(zval * return_value,const zend_string * hash)262 static int php_password_argon2_get_info(zval *return_value, const zend_string *hash) {
263 zend_long v = 0;
264 zend_long memory_cost = PHP_PASSWORD_ARGON2_MEMORY_COST;
265 zend_long time_cost = PHP_PASSWORD_ARGON2_TIME_COST;
266 zend_long threads = PHP_PASSWORD_ARGON2_THREADS;
267
268 extract_argon2_parameters(hash, &v, &memory_cost, &time_cost, &threads);
269
270 add_assoc_long(return_value, "memory_cost", memory_cost);
271 add_assoc_long(return_value, "time_cost", time_cost);
272 add_assoc_long(return_value, "threads", threads);
273
274 return SUCCESS;
275 }
276
php_password_argon2_needs_rehash(const zend_string * hash,zend_array * options)277 static bool php_password_argon2_needs_rehash(const zend_string *hash, zend_array *options) {
278 zend_long v = 0;
279 zend_long new_memory_cost = PHP_PASSWORD_ARGON2_MEMORY_COST, memory_cost = 0;
280 zend_long new_time_cost = PHP_PASSWORD_ARGON2_TIME_COST, time_cost = 0;
281 zend_long new_threads = PHP_PASSWORD_ARGON2_THREADS, threads = 0;
282 zval *option_buffer;
283
284 if (options && (option_buffer = zend_hash_str_find(options, "memory_cost", sizeof("memory_cost")-1)) != NULL) {
285 new_memory_cost = zval_get_long(option_buffer);
286 }
287
288 if (options && (option_buffer = zend_hash_str_find(options, "time_cost", sizeof("time_cost")-1)) != NULL) {
289 new_time_cost = zval_get_long(option_buffer);
290 }
291
292 if (options && (option_buffer = zend_hash_str_find(options, "threads", sizeof("threads")-1)) != NULL) {
293 new_threads = zval_get_long(option_buffer);
294 }
295
296 extract_argon2_parameters(hash, &v, &memory_cost, &time_cost, &threads);
297
298 return (new_time_cost != time_cost) ||
299 (new_memory_cost != memory_cost) ||
300 (new_threads != threads);
301 }
302
php_password_argon2_hash(const zend_string * password,zend_array * options,argon2_type type)303 static zend_string *php_password_argon2_hash(const zend_string *password, zend_array *options, argon2_type type) {
304 zval *option_buffer;
305 zend_string *salt, *out, *encoded;
306 size_t time_cost = PHP_PASSWORD_ARGON2_TIME_COST;
307 size_t memory_cost = PHP_PASSWORD_ARGON2_MEMORY_COST;
308 size_t threads = PHP_PASSWORD_ARGON2_THREADS;
309 size_t encoded_len;
310 int status = 0;
311
312 if (options && (option_buffer = zend_hash_str_find(options, "memory_cost", sizeof("memory_cost")-1)) != NULL) {
313 memory_cost = zval_get_long(option_buffer);
314 }
315
316 if (memory_cost > ARGON2_MAX_MEMORY || memory_cost < ARGON2_MIN_MEMORY) {
317 zend_value_error("Memory cost is outside of allowed memory range");
318 return NULL;
319 }
320
321 if (options && (option_buffer = zend_hash_str_find(options, "time_cost", sizeof("time_cost")-1)) != NULL) {
322 time_cost = zval_get_long(option_buffer);
323 }
324
325 if (time_cost > ARGON2_MAX_TIME || time_cost < ARGON2_MIN_TIME) {
326 zend_value_error("Time cost is outside of allowed time range");
327 return NULL;
328 }
329
330 if (options && (option_buffer = zend_hash_str_find(options, "threads", sizeof("threads")-1)) != NULL) {
331 threads = zval_get_long(option_buffer);
332 }
333
334 if (threads > ARGON2_MAX_LANES || threads == 0) {
335 zend_value_error("Invalid number of threads");
336 return NULL;
337 }
338
339 if (!(salt = php_password_get_salt(NULL, Z_UL(16), options))) {
340 return NULL;
341 }
342
343 out = zend_string_alloc(32, 0);
344 encoded_len = argon2_encodedlen(
345 time_cost,
346 memory_cost,
347 threads,
348 (uint32_t)ZSTR_LEN(salt),
349 ZSTR_LEN(out),
350 type
351 );
352
353 encoded = zend_string_alloc(encoded_len - 1, 0);
354 status = argon2_hash(
355 time_cost,
356 memory_cost,
357 threads,
358 ZSTR_VAL(password),
359 ZSTR_LEN(password),
360 ZSTR_VAL(salt),
361 ZSTR_LEN(salt),
362 ZSTR_VAL(out),
363 ZSTR_LEN(out),
364 ZSTR_VAL(encoded),
365 encoded_len,
366 type,
367 ARGON2_VERSION_NUMBER
368 );
369
370 zend_string_release_ex(out, 0);
371 zend_string_release_ex(salt, 0);
372
373 if (status != ARGON2_OK) {
374 zend_string_efree(encoded);
375 zend_value_error("%s", argon2_error_message(status));
376 return NULL;
377 }
378
379 ZSTR_VAL(encoded)[ZSTR_LEN(encoded)] = 0;
380 return encoded;
381 }
382
383 /* argon2i specific methods */
384
php_password_argon2i_verify(const zend_string * password,const zend_string * hash)385 static bool php_password_argon2i_verify(const zend_string *password, const zend_string *hash) {
386 return ARGON2_OK == argon2_verify(ZSTR_VAL(hash), ZSTR_VAL(password), ZSTR_LEN(password), Argon2_i);
387 }
388
php_password_argon2i_hash(const zend_string * password,zend_array * options)389 static zend_string *php_password_argon2i_hash(const zend_string *password, zend_array *options) {
390 return php_password_argon2_hash(password, options, Argon2_i);
391 }
392
393 const php_password_algo php_password_algo_argon2i = {
394 "argon2i",
395 php_password_argon2i_hash,
396 php_password_argon2i_verify,
397 php_password_argon2_needs_rehash,
398 php_password_argon2_get_info,
399 NULL,
400 };
401
402 /* argon2id specific methods */
403
php_password_argon2id_verify(const zend_string * password,const zend_string * hash)404 static bool php_password_argon2id_verify(const zend_string *password, const zend_string *hash) {
405 return ARGON2_OK == argon2_verify(ZSTR_VAL(hash), ZSTR_VAL(password), ZSTR_LEN(password), Argon2_id);
406 }
407
php_password_argon2id_hash(const zend_string * password,zend_array * options)408 static zend_string *php_password_argon2id_hash(const zend_string *password, zend_array *options) {
409 return php_password_argon2_hash(password, options, Argon2_id);
410 }
411
412 const php_password_algo php_password_algo_argon2id = {
413 "argon2id",
414 php_password_argon2id_hash,
415 php_password_argon2id_verify,
416 php_password_argon2_needs_rehash,
417 php_password_argon2_get_info,
418 NULL,
419 };
420 #endif
421
PHP_MINIT_FUNCTION(password)422 PHP_MINIT_FUNCTION(password) /* {{{ */
423 {
424 zend_hash_init(&php_password_algos, 4, NULL, ZVAL_PTR_DTOR, 1);
425
426 register_password_symbols(module_number);
427
428 if (FAILURE == php_password_algo_register("2y", &php_password_algo_bcrypt)) {
429 return FAILURE;
430 }
431
432 #ifdef HAVE_ARGON2LIB
433 if (FAILURE == php_password_algo_register("argon2i", &php_password_algo_argon2i)) {
434 return FAILURE;
435 }
436 if (FAILURE == php_password_algo_register("argon2id", &php_password_algo_argon2id)) {
437 return FAILURE;
438 }
439 #endif
440
441 return SUCCESS;
442 }
443 /* }}} */
444
PHP_MSHUTDOWN_FUNCTION(password)445 PHP_MSHUTDOWN_FUNCTION(password) /* {{{ */
446 {
447 #ifdef ZTS
448 if (!tsrm_is_main_thread()) {
449 return SUCCESS;
450 }
451 #endif
452 zend_hash_destroy(&php_password_algos);
453 return SUCCESS;
454 }
455 /* }}} */
456
php_password_algo_default(void)457 const php_password_algo* php_password_algo_default(void) {
458 return &php_password_algo_bcrypt;
459 }
460
php_password_algo_find(const zend_string * ident)461 const php_password_algo* php_password_algo_find(const zend_string *ident) {
462 zval *tmp;
463
464 if (!ident) {
465 return NULL;
466 }
467
468 tmp = zend_hash_find(&php_password_algos, (zend_string*)ident);
469 if (!tmp || (Z_TYPE_P(tmp) != IS_PTR)) {
470 return NULL;
471 }
472
473 return Z_PTR_P(tmp);
474 }
475
php_password_algo_find_zval(zend_string * arg_str,zend_long arg_long,bool arg_is_null)476 static const php_password_algo* php_password_algo_find_zval(zend_string *arg_str, zend_long arg_long, bool arg_is_null) {
477 if (arg_is_null) {
478 return php_password_algo_default();
479 }
480
481 if (arg_str) {
482 return php_password_algo_find(arg_str);
483 }
484
485 switch (arg_long) {
486 case 0: return php_password_algo_default();
487 case 1: return &php_password_algo_bcrypt;
488 #ifdef HAVE_ARGON2LIB
489 case 2: return &php_password_algo_argon2i;
490 case 3: return &php_password_algo_argon2id;
491 #else
492 case 2:
493 {
494 zend_string *n = ZSTR_INIT_LITERAL("argon2i", 0);
495 const php_password_algo* ret = php_password_algo_find(n);
496 zend_string_release(n);
497 return ret;
498 }
499 case 3:
500 {
501 zend_string *n = ZSTR_INIT_LITERAL("argon2id", 0);
502 const php_password_algo* ret = php_password_algo_find(n);
503 zend_string_release(n);
504 return ret;
505 }
506 #endif
507 }
508
509 return NULL;
510 }
511
php_password_algo_extract_ident(const zend_string * hash)512 zend_string *php_password_algo_extract_ident(const zend_string* hash) {
513 const char *ident, *ident_end;
514
515 if (!hash || ZSTR_LEN(hash) < 3) {
516 /* Minimum prefix: "$x$" */
517 return NULL;
518 }
519
520 ident = ZSTR_VAL(hash) + 1;
521 ident_end = strchr(ident, '$');
522 if (!ident_end) {
523 /* No terminating '$' */
524 return NULL;
525 }
526
527 return zend_string_init(ident, ident_end - ident, 0);
528 }
529
php_password_algo_identify_ex(const zend_string * hash,const php_password_algo * default_algo)530 const php_password_algo* php_password_algo_identify_ex(const zend_string* hash, const php_password_algo *default_algo) {
531 const php_password_algo *algo;
532 zend_string *ident = php_password_algo_extract_ident(hash);
533
534 if (!ident) {
535 return default_algo;
536 }
537
538 algo = php_password_algo_find(ident);
539 zend_string_release(ident);
540 return (!algo || (algo->valid && !algo->valid(hash))) ? default_algo : algo;
541 }
542
543 /* {{{ Retrieves information about a given hash */
PHP_FUNCTION(password_get_info)544 PHP_FUNCTION(password_get_info)
545 {
546 const php_password_algo *algo;
547 zend_string *hash, *ident;
548 zval options;
549
550 ZEND_PARSE_PARAMETERS_START(1, 1)
551 Z_PARAM_STR(hash)
552 ZEND_PARSE_PARAMETERS_END();
553
554 array_init(return_value);
555 array_init(&options);
556
557 ident = php_password_algo_extract_ident(hash);
558 algo = php_password_algo_find(ident);
559 if (!algo || (algo->valid && !algo->valid(hash))) {
560 if (ident) {
561 zend_string_release(ident);
562 }
563 add_assoc_null(return_value, "algo");
564 add_assoc_string(return_value, "algoName", "unknown");
565 add_assoc_zval(return_value, "options", &options);
566 return;
567 }
568
569 add_assoc_str(return_value, "algo", php_password_algo_extract_ident(hash));
570 zend_string_release(ident);
571
572 add_assoc_string(return_value, "algoName", algo->name);
573 if (algo->get_info) {
574 algo->get_info(&options, hash);
575 }
576 add_assoc_zval(return_value, "options", &options);
577 }
578 /** }}} */
579
580 /* {{{ Determines if a given hash requires re-hashing based upon parameters */
PHP_FUNCTION(password_needs_rehash)581 PHP_FUNCTION(password_needs_rehash)
582 {
583 const php_password_algo *old_algo, *new_algo;
584 zend_string *hash;
585 zend_string *new_algo_str;
586 zend_long new_algo_long = 0;
587 bool new_algo_is_null;
588 zend_array *options = NULL;
589
590 ZEND_PARSE_PARAMETERS_START(2, 3)
591 Z_PARAM_STR(hash)
592 Z_PARAM_STR_OR_LONG_OR_NULL(new_algo_str, new_algo_long, new_algo_is_null)
593 Z_PARAM_OPTIONAL
594 Z_PARAM_ARRAY_HT(options)
595 ZEND_PARSE_PARAMETERS_END();
596
597 new_algo = php_password_algo_find_zval(new_algo_str, new_algo_long, new_algo_is_null);
598 if (!new_algo) {
599 /* Unknown new algorithm, never prompt to rehash. */
600 RETURN_FALSE;
601 }
602
603 old_algo = php_password_algo_identify_ex(hash, NULL);
604 if (old_algo != new_algo) {
605 /* Different algorithm preferred, always rehash. */
606 RETURN_TRUE;
607 }
608
609 RETURN_BOOL(old_algo->needs_rehash(hash, options));
610 }
611 /* }}} */
612
613 /* {{{ Verify a hash created using crypt() or password_hash() */
PHP_FUNCTION(password_verify)614 PHP_FUNCTION(password_verify)
615 {
616 zend_string *password, *hash;
617 const php_password_algo *algo;
618
619 ZEND_PARSE_PARAMETERS_START(2, 2)
620 Z_PARAM_STR(password)
621 Z_PARAM_STR(hash)
622 ZEND_PARSE_PARAMETERS_END();
623
624 algo = php_password_algo_identify(hash);
625 RETURN_BOOL(algo && (!algo->verify || algo->verify(password, hash)));
626 }
627 /* }}} */
628
629 /* {{{ Hash a password */
PHP_FUNCTION(password_hash)630 PHP_FUNCTION(password_hash)
631 {
632 zend_string *password, *digest = NULL;
633 zend_string *algo_str;
634 zend_long algo_long = 0;
635 bool algo_is_null;
636 const php_password_algo *algo;
637 zend_array *options = NULL;
638
639 ZEND_PARSE_PARAMETERS_START(2, 3)
640 Z_PARAM_STR(password)
641 Z_PARAM_STR_OR_LONG_OR_NULL(algo_str, algo_long, algo_is_null)
642 Z_PARAM_OPTIONAL
643 Z_PARAM_ARRAY_HT(options)
644 ZEND_PARSE_PARAMETERS_END();
645
646 algo = php_password_algo_find_zval(algo_str, algo_long, algo_is_null);
647 if (!algo) {
648 zend_argument_value_error(2, "must be a valid password hashing algorithm");
649 RETURN_THROWS();
650 }
651
652 digest = algo->hash(password, options);
653 if (!digest) {
654 if (!EG(exception)) {
655 zend_throw_error(NULL, "Password hashing failed for unknown reason");
656 }
657 RETURN_THROWS();
658 }
659
660 RETURN_NEW_STR(digest);
661 }
662 /* }}} */
663
664 /* {{{ */
PHP_FUNCTION(password_algos)665 PHP_FUNCTION(password_algos) {
666 zend_string *algo;
667
668 ZEND_PARSE_PARAMETERS_NONE();
669
670 array_init(return_value);
671 ZEND_HASH_MAP_FOREACH_STR_KEY(&php_password_algos, algo) {
672 add_next_index_str(return_value, zend_string_copy(algo));
673 } ZEND_HASH_FOREACH_END();
674 }
675 /* }}} */
676
