This source file includes following definitions.
- sha512_process_block
- sha512_init_ctx
- sha512_finish_ctx
- sha512_process_bytes
- php_sha512_crypt_r
- php_sha512_crypt
- main
1
2
3
4
5 #include "php.h"
6 #include "php_main.h"
7
8 #include <errno.h>
9 #include <limits.h>
10 #ifdef PHP_WIN32
11 # define __alignof__ __alignof
12 # define alloca _alloca
13 #else
14 # ifndef HAVE_ALIGNOF
15 # include <stddef.h>
16 # define __alignof__(type) offsetof (struct { char c; type member;}, member)
17 # endif
18 # if HAVE_ATTRIBUTE_ALIGNED
19 # define ALIGNED(size) __attribute__ ((__aligned__ (size)))
20 # else
21 # define ALIGNED(size)
22 # endif
23 #endif
24
25 #include <stdio.h>
26 #include <stdlib.h>
27
28 #ifdef PHP_WIN32
29 # include <string.h>
30 #else
31 # include <sys/param.h>
32 # include <sys/types.h>
33 # if HAVE_STRING_H
34 # include <string.h>
35 # else
36 # include <strings.h>
37 # endif
38 #endif
39
40 extern void * __php_mempcpy(void * dst, const void * src, size_t len);
41 extern char * __php_stpncpy(char *dst, const char *src, size_t len);
42
43 #ifndef MIN
44 # define MIN(a, b) (((a) < (b)) ? (a) : (b))
45 #endif
46 #ifndef MAX
47 # define MAX(a, b) (((a) > (b)) ? (a) : (b))
48 #endif
49
50
51 #ifndef UINT64_C
52 # define UINT64_C(value) __CONCAT(value, ULL)
53 #endif
54
55
56 struct sha512_ctx
57 {
58 uint64_t H[8];
59
60 uint64_t total[2];
61 uint64_t buflen;
62 char buffer[256];
63 };
64
65
66 #if PHP_WIN32 || (!defined(WORDS_BIGENDIAN))
67 # define SWAP(n) \
68 (((n) << 56) \
69 | (((n) & 0xff00) << 40) \
70 | (((n) & 0xff0000) << 24) \
71 | (((n) & 0xff000000) << 8) \
72 | (((n) >> 8) & 0xff000000) \
73 | (((n) >> 24) & 0xff0000) \
74 | (((n) >> 40) & 0xff00) \
75 | ((n) >> 56))
76 #else
77 # define SWAP(n) (n)
78 #endif
79
80
81
82 static const unsigned char fillbuf[128] = { 0x80, 0 };
83
84
85 static const uint64_t K[80] = {
86 UINT64_C (0x428a2f98d728ae22), UINT64_C (0x7137449123ef65cd),
87 UINT64_C (0xb5c0fbcfec4d3b2f), UINT64_C (0xe9b5dba58189dbbc),
88 UINT64_C (0x3956c25bf348b538), UINT64_C (0x59f111f1b605d019),
89 UINT64_C (0x923f82a4af194f9b), UINT64_C (0xab1c5ed5da6d8118),
90 UINT64_C (0xd807aa98a3030242), UINT64_C (0x12835b0145706fbe),
91 UINT64_C (0x243185be4ee4b28c), UINT64_C (0x550c7dc3d5ffb4e2),
92 UINT64_C (0x72be5d74f27b896f), UINT64_C (0x80deb1fe3b1696b1),
93 UINT64_C (0x9bdc06a725c71235), UINT64_C (0xc19bf174cf692694),
94 UINT64_C (0xe49b69c19ef14ad2), UINT64_C (0xefbe4786384f25e3),
95 UINT64_C (0x0fc19dc68b8cd5b5), UINT64_C (0x240ca1cc77ac9c65),
96 UINT64_C (0x2de92c6f592b0275), UINT64_C (0x4a7484aa6ea6e483),
97 UINT64_C (0x5cb0a9dcbd41fbd4), UINT64_C (0x76f988da831153b5),
98 UINT64_C (0x983e5152ee66dfab), UINT64_C (0xa831c66d2db43210),
99 UINT64_C (0xb00327c898fb213f), UINT64_C (0xbf597fc7beef0ee4),
100 UINT64_C (0xc6e00bf33da88fc2), UINT64_C (0xd5a79147930aa725),
101 UINT64_C (0x06ca6351e003826f), UINT64_C (0x142929670a0e6e70),
102 UINT64_C (0x27b70a8546d22ffc), UINT64_C (0x2e1b21385c26c926),
103 UINT64_C (0x4d2c6dfc5ac42aed), UINT64_C (0x53380d139d95b3df),
104 UINT64_C (0x650a73548baf63de), UINT64_C (0x766a0abb3c77b2a8),
105 UINT64_C (0x81c2c92e47edaee6), UINT64_C (0x92722c851482353b),
106 UINT64_C (0xa2bfe8a14cf10364), UINT64_C (0xa81a664bbc423001),
107 UINT64_C (0xc24b8b70d0f89791), UINT64_C (0xc76c51a30654be30),
108 UINT64_C (0xd192e819d6ef5218), UINT64_C (0xd69906245565a910),
109 UINT64_C (0xf40e35855771202a), UINT64_C (0x106aa07032bbd1b8),
110 UINT64_C (0x19a4c116b8d2d0c8), UINT64_C (0x1e376c085141ab53),
111 UINT64_C (0x2748774cdf8eeb99), UINT64_C (0x34b0bcb5e19b48a8),
112 UINT64_C (0x391c0cb3c5c95a63), UINT64_C (0x4ed8aa4ae3418acb),
113 UINT64_C (0x5b9cca4f7763e373), UINT64_C (0x682e6ff3d6b2b8a3),
114 UINT64_C (0x748f82ee5defb2fc), UINT64_C (0x78a5636f43172f60),
115 UINT64_C (0x84c87814a1f0ab72), UINT64_C (0x8cc702081a6439ec),
116 UINT64_C (0x90befffa23631e28), UINT64_C (0xa4506cebde82bde9),
117 UINT64_C (0xbef9a3f7b2c67915), UINT64_C (0xc67178f2e372532b),
118 UINT64_C (0xca273eceea26619c), UINT64_C (0xd186b8c721c0c207),
119 UINT64_C (0xeada7dd6cde0eb1e), UINT64_C (0xf57d4f7fee6ed178),
120 UINT64_C (0x06f067aa72176fba), UINT64_C (0x0a637dc5a2c898a6),
121 UINT64_C (0x113f9804bef90dae), UINT64_C (0x1b710b35131c471b),
122 UINT64_C (0x28db77f523047d84), UINT64_C (0x32caab7b40c72493),
123 UINT64_C (0x3c9ebe0a15c9bebc), UINT64_C (0x431d67c49c100d4c),
124 UINT64_C (0x4cc5d4becb3e42b6), UINT64_C (0x597f299cfc657e2a),
125 UINT64_C (0x5fcb6fab3ad6faec), UINT64_C (0x6c44198c4a475817)
126 };
127
128
129
130
131 static void
132 sha512_process_block(const void *buffer, size_t len, struct sha512_ctx *ctx) {
133 const uint64_t *words = buffer;
134 size_t nwords = len / sizeof(uint64_t);
135 uint64_t a = ctx->H[0];
136 uint64_t b = ctx->H[1];
137 uint64_t c = ctx->H[2];
138 uint64_t d = ctx->H[3];
139 uint64_t e = ctx->H[4];
140 uint64_t f = ctx->H[5];
141 uint64_t g = ctx->H[6];
142 uint64_t h = ctx->H[7];
143
144
145
146
147 ctx->total[0] += len;
148 if (ctx->total[0] < len) {
149 ++ctx->total[1];
150 }
151
152
153
154 while (nwords > 0) {
155 uint64_t W[80];
156 uint64_t a_save = a;
157 uint64_t b_save = b;
158 uint64_t c_save = c;
159 uint64_t d_save = d;
160 uint64_t e_save = e;
161 uint64_t f_save = f;
162 uint64_t g_save = g;
163 uint64_t h_save = h;
164 unsigned int t;
165
166
167 #define Ch(x, y, z) ((x & y) ^ (~x & z))
168 #define Maj(x, y, z) ((x & y) ^ (x & z) ^ (y & z))
169 #define S0(x) (CYCLIC (x, 28) ^ CYCLIC (x, 34) ^ CYCLIC (x, 39))
170 #define S1(x) (CYCLIC (x, 14) ^ CYCLIC (x, 18) ^ CYCLIC (x, 41))
171 #define R0(x) (CYCLIC (x, 1) ^ CYCLIC (x, 8) ^ (x >> 7))
172 #define R1(x) (CYCLIC (x, 19) ^ CYCLIC (x, 61) ^ (x >> 6))
173
174
175
176 #define CYCLIC(w, s) ((w >> s) | (w << (64 - s)))
177
178
179 for (t = 0; t < 16; ++t) {
180 W[t] = SWAP (*words);
181 ++words;
182 }
183
184 for (t = 16; t < 80; ++t) {
185 W[t] = R1 (W[t - 2]) + W[t - 7] + R0 (W[t - 15]) + W[t - 16];
186 }
187
188
189 for (t = 0; t < 80; ++t) {
190 uint64_t T1 = h + S1 (e) + Ch (e, f, g) + K[t] + W[t];
191 uint64_t T2 = S0 (a) + Maj (a, b, c);
192 h = g;
193 g = f;
194 f = e;
195 e = d + T1;
196 d = c;
197 c = b;
198 b = a;
199 a = T1 + T2;
200 }
201
202
203
204 a += a_save;
205 b += b_save;
206 c += c_save;
207 d += d_save;
208 e += e_save;
209 f += f_save;
210 g += g_save;
211 h += h_save;
212
213
214 nwords -= 16;
215 }
216
217
218 ctx->H[0] = a;
219 ctx->H[1] = b;
220 ctx->H[2] = c;
221 ctx->H[3] = d;
222 ctx->H[4] = e;
223 ctx->H[5] = f;
224 ctx->H[6] = g;
225 ctx->H[7] = h;
226 }
227
228
229
230
231 static void sha512_init_ctx (struct sha512_ctx *ctx) {
232 ctx->H[0] = UINT64_C (0x6a09e667f3bcc908);
233 ctx->H[1] = UINT64_C (0xbb67ae8584caa73b);
234 ctx->H[2] = UINT64_C (0x3c6ef372fe94f82b);
235 ctx->H[3] = UINT64_C (0xa54ff53a5f1d36f1);
236 ctx->H[4] = UINT64_C (0x510e527fade682d1);
237 ctx->H[5] = UINT64_C (0x9b05688c2b3e6c1f);
238 ctx->H[6] = UINT64_C (0x1f83d9abfb41bd6b);
239 ctx->H[7] = UINT64_C (0x5be0cd19137e2179);
240
241 ctx->total[0] = ctx->total[1] = 0;
242 ctx->buflen = 0;
243 }
244
245
246
247
248
249
250
251 static void * sha512_finish_ctx (struct sha512_ctx *ctx, void *resbuf) {
252
253 uint64_t bytes = ctx->buflen;
254 size_t pad;
255 unsigned int i;
256
257
258 ctx->total[0] += bytes;
259 if (ctx->total[0] < bytes) {
260 ++ctx->total[1];
261 }
262
263 pad = bytes >= 112 ? 128 + 112 - (size_t)bytes : 112 - (size_t)bytes;
264 memcpy(&ctx->buffer[bytes], fillbuf, pad);
265
266
267 *(uint64_t *) &ctx->buffer[bytes + pad + 8] = SWAP(ctx->total[0] << 3);
268 *(uint64_t *) &ctx->buffer[bytes + pad] = SWAP((ctx->total[1] << 3) |
269 (ctx->total[0] >> 61));
270
271
272 sha512_process_block(ctx->buffer, (size_t)(bytes + pad + 16), ctx);
273
274
275 for (i = 0; i < 8; ++i) {
276 ((uint64_t *) resbuf)[i] = SWAP(ctx->H[i]);
277 }
278
279 return resbuf;
280 }
281
282 static void
283 sha512_process_bytes(const void *buffer, size_t len, struct sha512_ctx *ctx) {
284
285
286 if (ctx->buflen != 0) {
287 size_t left_over = (size_t)ctx->buflen;
288 size_t add = (size_t)(256 - left_over > len ? len : 256 - left_over);
289
290 memcpy(&ctx->buffer[left_over], buffer, add);
291 ctx->buflen += add;
292
293 if (ctx->buflen > 128) {
294 sha512_process_block(ctx->buffer, ctx->buflen & ~127, ctx);
295
296 ctx->buflen &= 127;
297
298 memcpy(ctx->buffer, &ctx->buffer[(left_over + add) & ~127],
299 (size_t)ctx->buflen);
300 }
301
302 buffer = (const char *) buffer + add;
303 len -= add;
304 }
305
306
307 if (len >= 128) {
308 #if !_STRING_ARCH_unaligned
309
310
311 # if __GNUC__ >= 2
312 # define UNALIGNED_P(p) (((uintptr_t) p) % __alignof__ (uint64_t) != 0)
313 # else
314 # define UNALIGNED_P(p) (((uintptr_t) p) % sizeof(uint64_t) != 0)
315 # endif
316 if (UNALIGNED_P(buffer))
317 while (len > 128) {
318 sha512_process_block(memcpy(ctx->buffer, buffer, 128), 128, ctx);
319 buffer = (const char *) buffer + 128;
320 len -= 128;
321 }
322 else
323 #endif
324 {
325 sha512_process_block(buffer, len & ~127, ctx);
326 buffer = (const char *) buffer + (len & ~127);
327 len &= 127;
328 }
329 }
330
331
332 if (len > 0) {
333 size_t left_over = (size_t)ctx->buflen;
334
335 memcpy(&ctx->buffer[left_over], buffer, len);
336 left_over += len;
337 if (left_over >= 128) {
338 sha512_process_block(ctx->buffer, 128, ctx);
339 left_over -= 128;
340 memcpy(ctx->buffer, &ctx->buffer[128], left_over);
341 }
342 ctx->buflen = left_over;
343 }
344 }
345
346
347
348
349 static const char sha512_salt_prefix[] = "$6$";
350
351
352 static const char sha512_rounds_prefix[] = "rounds=";
353
354
355 #define SALT_LEN_MAX 16
356
357 #define ROUNDS_DEFAULT 5000
358
359 #define ROUNDS_MIN 1000
360
361 #define ROUNDS_MAX 999999999
362
363
364 static const char b64t[64] =
365 "./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
366
367
368 char *
369 php_sha512_crypt_r(const char *key, const char *salt, char *buffer, int buflen) {
370 #ifdef PHP_WIN32
371 # if _MSC <= 1300
372 # pragma pack(push, 16)
373 unsigned char alt_result[64];
374 unsigned char temp_result[64];
375 # pragma pack(pop)
376 # else
377 __declspec(align(64)) unsigned char alt_result[64];
378 __declspec(align(64)) unsigned char temp_result[64];
379 # endif
380 #else
381 unsigned char alt_result[64] ALIGNED(__alignof__ (uint64_t));
382 unsigned char temp_result[64] ALIGNED(__alignof__ (uint64_t));
383 #endif
384 struct sha512_ctx ctx;
385 struct sha512_ctx alt_ctx;
386 size_t salt_len;
387 size_t key_len;
388 size_t cnt;
389 char *cp;
390 char *copied_key = NULL;
391 char *copied_salt = NULL;
392 char *p_bytes;
393 char *s_bytes;
394
395 size_t rounds = ROUNDS_DEFAULT;
396 zend_bool rounds_custom = 0;
397
398
399
400 if (strncmp(sha512_salt_prefix, salt, sizeof(sha512_salt_prefix) - 1) == 0) {
401
402 salt += sizeof(sha512_salt_prefix) - 1;
403 }
404
405 if (strncmp(salt, sha512_rounds_prefix, sizeof(sha512_rounds_prefix) - 1) == 0) {
406 const char *num = salt + sizeof(sha512_rounds_prefix) - 1;
407 char *endp;
408 zend_ulong srounds = ZEND_STRTOUL(num, &endp, 10);
409
410 if (*endp == '$') {
411 salt = endp + 1;
412 rounds = MAX(ROUNDS_MIN, MIN(srounds, ROUNDS_MAX));
413 rounds_custom = 1;
414 }
415 }
416
417 salt_len = MIN(strcspn(salt, "$"), SALT_LEN_MAX);
418 key_len = strlen(key);
419
420 if ((key - (char *) 0) % __alignof__ (uint64_t) != 0) {
421 char *tmp = (char *) alloca (key_len + __alignof__ (uint64_t));
422 key = copied_key =
423 memcpy(tmp + __alignof__(uint64_t) - (tmp - (char *) 0) % __alignof__(uint64_t), key, key_len);
424 }
425
426 if ((salt - (char *) 0) % __alignof__ (uint64_t) != 0) {
427 char *tmp = (char *) alloca(salt_len + 1 + __alignof__(uint64_t));
428 salt = copied_salt = memcpy(tmp + __alignof__(uint64_t) - (tmp - (char *) 0) % __alignof__(uint64_t), salt, salt_len);
429 copied_salt[salt_len] = 0;
430 }
431
432
433 sha512_init_ctx(&ctx);
434
435
436 sha512_process_bytes(key, key_len, &ctx);
437
438
439
440
441 sha512_process_bytes(salt, salt_len, &ctx);
442
443
444
445
446 sha512_init_ctx(&alt_ctx);
447
448
449 sha512_process_bytes(key, key_len, &alt_ctx);
450
451
452 sha512_process_bytes(salt, salt_len, &alt_ctx);
453
454
455 sha512_process_bytes(key, key_len, &alt_ctx);
456
457
458
459 sha512_finish_ctx(&alt_ctx, alt_result);
460
461
462 for (cnt = key_len; cnt > 64; cnt -= 64) {
463 sha512_process_bytes(alt_result, 64, &ctx);
464 }
465 sha512_process_bytes(alt_result, cnt, &ctx);
466
467
468
469 for (cnt = key_len; cnt > 0; cnt >>= 1) {
470 if ((cnt & 1) != 0) {
471 sha512_process_bytes(alt_result, 64, &ctx);
472 } else {
473 sha512_process_bytes(key, key_len, &ctx);
474 }
475 }
476
477
478 sha512_finish_ctx(&ctx, alt_result);
479
480
481 sha512_init_ctx(&alt_ctx);
482
483
484 for (cnt = 0; cnt < key_len; ++cnt) {
485 sha512_process_bytes(key, key_len, &alt_ctx);
486 }
487
488
489 sha512_finish_ctx(&alt_ctx, temp_result);
490
491
492 cp = p_bytes = alloca(key_len);
493 for (cnt = key_len; cnt >= 64; cnt -= 64) {
494 cp = __php_mempcpy((void *) cp, (const void *)temp_result, 64);
495 }
496
497 memcpy(cp, temp_result, cnt);
498
499
500 sha512_init_ctx(&alt_ctx);
501
502
503 for (cnt = 0; cnt < (size_t) (16 + alt_result[0]); ++cnt) {
504 sha512_process_bytes(salt, salt_len, &alt_ctx);
505 }
506
507
508 sha512_finish_ctx(&alt_ctx, temp_result);
509
510
511 cp = s_bytes = alloca(salt_len);
512 for (cnt = salt_len; cnt >= 64; cnt -= 64) {
513 cp = __php_mempcpy(cp, temp_result, 64);
514 }
515 memcpy(cp, temp_result, cnt);
516
517
518
519 for (cnt = 0; cnt < rounds; ++cnt) {
520
521 sha512_init_ctx(&ctx);
522
523
524 if ((cnt & 1) != 0) {
525 sha512_process_bytes(p_bytes, key_len, &ctx);
526 } else {
527 sha512_process_bytes(alt_result, 64, &ctx);
528 }
529
530
531 if (cnt % 3 != 0) {
532 sha512_process_bytes(s_bytes, salt_len, &ctx);
533 }
534
535
536 if (cnt % 7 != 0) {
537 sha512_process_bytes(p_bytes, key_len, &ctx);
538 }
539
540
541 if ((cnt & 1) != 0) {
542 sha512_process_bytes(alt_result, 64, &ctx);
543 } else {
544 sha512_process_bytes(p_bytes, key_len, &ctx);
545 }
546
547
548 sha512_finish_ctx(&ctx, alt_result);
549 }
550
551
552
553 cp = __php_stpncpy(buffer, sha512_salt_prefix, MAX(0, buflen));
554 buflen -= sizeof(sha512_salt_prefix) - 1;
555
556 if (rounds_custom) {
557 #ifdef PHP_WIN32
558 int n = _snprintf(cp, MAX(0, buflen), "%s" ZEND_ULONG_FMT "$", sha512_rounds_prefix, rounds);
559 #else
560 int n = snprintf(cp, MAX(0, buflen), "%s%zu$", sha512_rounds_prefix, rounds);
561 #endif
562 cp += n;
563 buflen -= n;
564 }
565
566 cp = __php_stpncpy(cp, salt, MIN((size_t) MAX(0, buflen), salt_len));
567 buflen -= (int) MIN((size_t) MAX(0, buflen), salt_len);
568
569 if (buflen > 0) {
570 *cp++ = '$';
571 --buflen;
572 }
573
574 #define b64_from_24bit(B2, B1, B0, N) \
575 do { \
576 unsigned int w = ((B2) << 16) | ((B1) << 8) | (B0); \
577 int n = (N); \
578 while (n-- > 0 && buflen > 0) \
579 { \
580 *cp++ = b64t[w & 0x3f]; \
581 --buflen; \
582 w >>= 6; \
583 } \
584 } while (0)
585
586 b64_from_24bit(alt_result[0], alt_result[21], alt_result[42], 4);
587 b64_from_24bit(alt_result[22], alt_result[43], alt_result[1], 4);
588 b64_from_24bit(alt_result[44], alt_result[2], alt_result[23], 4);
589 b64_from_24bit(alt_result[3], alt_result[24], alt_result[45], 4);
590 b64_from_24bit(alt_result[25], alt_result[46], alt_result[4], 4);
591 b64_from_24bit(alt_result[47], alt_result[5], alt_result[26], 4);
592 b64_from_24bit(alt_result[6], alt_result[27], alt_result[48], 4);
593 b64_from_24bit(alt_result[28], alt_result[49], alt_result[7], 4);
594 b64_from_24bit(alt_result[50], alt_result[8], alt_result[29], 4);
595 b64_from_24bit(alt_result[9], alt_result[30], alt_result[51], 4);
596 b64_from_24bit(alt_result[31], alt_result[52], alt_result[10], 4);
597 b64_from_24bit(alt_result[53], alt_result[11], alt_result[32], 4);
598 b64_from_24bit(alt_result[12], alt_result[33], alt_result[54], 4);
599 b64_from_24bit(alt_result[34], alt_result[55], alt_result[13], 4);
600 b64_from_24bit(alt_result[56], alt_result[14], alt_result[35], 4);
601 b64_from_24bit(alt_result[15], alt_result[36], alt_result[57], 4);
602 b64_from_24bit(alt_result[37], alt_result[58], alt_result[16], 4);
603 b64_from_24bit(alt_result[59], alt_result[17], alt_result[38], 4);
604 b64_from_24bit(alt_result[18], alt_result[39], alt_result[60], 4);
605 b64_from_24bit(alt_result[40], alt_result[61], alt_result[19], 4);
606 b64_from_24bit(alt_result[62], alt_result[20], alt_result[41], 4);
607 b64_from_24bit(0, 0, alt_result[63], 2);
608
609 if (buflen <= 0) {
610 errno = ERANGE;
611 buffer = NULL;
612 } else {
613 *cp = '\0';
614 }
615
616
617
618
619
620 sha512_init_ctx(&ctx);
621 sha512_finish_ctx(&ctx, alt_result);
622 ZEND_SECURE_ZERO(temp_result, sizeof(temp_result));
623 ZEND_SECURE_ZERO(p_bytes, key_len);
624 ZEND_SECURE_ZERO(s_bytes, salt_len);
625 ZEND_SECURE_ZERO(&ctx, sizeof(ctx));
626 ZEND_SECURE_ZERO(&alt_ctx, sizeof(alt_ctx));
627 if (copied_key != NULL) {
628 ZEND_SECURE_ZERO(copied_key, key_len);
629 }
630 if (copied_salt != NULL) {
631 ZEND_SECURE_ZERO(copied_salt, salt_len);
632 }
633
634 return buffer;
635 }
636
637
638
639
640 char *
641 php_sha512_crypt(const char *key, const char *salt) {
642
643
644
645
646 ZEND_TLS char *buffer;
647 ZEND_TLS int buflen = 0;
648 int needed = (int)(sizeof(sha512_salt_prefix) - 1
649 + sizeof(sha512_rounds_prefix) + 9 + 1
650 + strlen(salt) + 1 + 86 + 1);
651
652 if (buflen < needed) {
653 char *new_buffer = (char *) realloc(buffer, needed);
654 if (new_buffer == NULL) {
655 return NULL;
656 }
657
658 buffer = new_buffer;
659 buflen = needed;
660 }
661
662 return php_sha512_crypt_r (key, salt, buffer, buflen);
663 }
664
665 #ifdef TEST
666 static const struct {
667 const char *input;
668 const char result[64];
669 } tests[] =
670 {
671
672 { "abc",
673 "\xdd\xaf\x35\xa1\x93\x61\x7a\xba\xcc\x41\x73\x49\xae\x20\x41\x31"
674 "\x12\xe6\xfa\x4e\x89\xa9\x7e\xa2\x0a\x9e\xee\xe6\x4b\x55\xd3\x9a"
675 "\x21\x92\x99\x2a\x27\x4f\xc1\xa8\x36\xba\x3c\x23\xa3\xfe\xeb\xbd"
676 "\x45\x4d\x44\x23\x64\x3c\xe8\x0e\x2a\x9a\xc9\x4f\xa5\x4c\xa4\x9f" },
677
678 { "abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmn"
679 "hijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu",
680 "\x8e\x95\x9b\x75\xda\xe3\x13\xda\x8c\xf4\xf7\x28\x14\xfc\x14\x3f"
681 "\x8f\x77\x79\xc6\xeb\x9f\x7f\xa1\x72\x99\xae\xad\xb6\x88\x90\x18"
682 "\x50\x1d\x28\x9e\x49\x00\xf7\xe4\x33\x1b\x99\xde\xc4\xb5\x43\x3a"
683 "\xc7\xd3\x29\xee\xb6\xdd\x26\x54\x5e\x96\xe5\x5b\x87\x4b\xe9\x09" },
684
685 { "",
686 "\xcf\x83\xe1\x35\x7e\xef\xb8\xbd\xf1\x54\x28\x50\xd6\x6d\x80\x07"
687 "\xd6\x20\xe4\x05\x0b\x57\x15\xdc\x83\xf4\xa9\x21\xd3\x6c\xe9\xce"
688 "\x47\xd0\xd1\x3c\x5d\x85\xf2\xb0\xff\x83\x18\xd2\x87\x7e\xec\x2f"
689 "\x63\xb9\x31\xbd\x47\x41\x7a\x81\xa5\x38\x32\x7a\xf9\x27\xda\x3e" },
690 { "a",
691 "\x1f\x40\xfc\x92\xda\x24\x16\x94\x75\x09\x79\xee\x6c\xf5\x82\xf2"
692 "\xd5\xd7\xd2\x8e\x18\x33\x5d\xe0\x5a\xbc\x54\xd0\x56\x0e\x0f\x53"
693 "\x02\x86\x0c\x65\x2b\xf0\x8d\x56\x02\x52\xaa\x5e\x74\x21\x05\x46"
694 "\xf3\x69\xfb\xbb\xce\x8c\x12\xcf\xc7\x95\x7b\x26\x52\xfe\x9a\x75" },
695 { "message digest",
696 "\x10\x7d\xbf\x38\x9d\x9e\x9f\x71\xa3\xa9\x5f\x6c\x05\x5b\x92\x51"
697 "\xbc\x52\x68\xc2\xbe\x16\xd6\xc1\x34\x92\xea\x45\xb0\x19\x9f\x33"
698 "\x09\xe1\x64\x55\xab\x1e\x96\x11\x8e\x8a\x90\x5d\x55\x97\xb7\x20"
699 "\x38\xdd\xb3\x72\xa8\x98\x26\x04\x6d\xe6\x66\x87\xbb\x42\x0e\x7c" },
700 { "abcdefghijklmnopqrstuvwxyz",
701 "\x4d\xbf\xf8\x6c\xc2\xca\x1b\xae\x1e\x16\x46\x8a\x05\xcb\x98\x81"
702 "\xc9\x7f\x17\x53\xbc\xe3\x61\x90\x34\x89\x8f\xaa\x1a\xab\xe4\x29"
703 "\x95\x5a\x1b\xf8\xec\x48\x3d\x74\x21\xfe\x3c\x16\x46\x61\x3a\x59"
704 "\xed\x54\x41\xfb\x0f\x32\x13\x89\xf7\x7f\x48\xa8\x79\xc7\xb1\xf1" },
705 { "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
706 "\x20\x4a\x8f\xc6\xdd\xa8\x2f\x0a\x0c\xed\x7b\xeb\x8e\x08\xa4\x16"
707 "\x57\xc1\x6e\xf4\x68\xb2\x28\xa8\x27\x9b\xe3\x31\xa7\x03\xc3\x35"
708 "\x96\xfd\x15\xc1\x3b\x1b\x07\xf9\xaa\x1d\x3b\xea\x57\x78\x9c\xa0"
709 "\x31\xad\x85\xc7\xa7\x1d\xd7\x03\x54\xec\x63\x12\x38\xca\x34\x45" },
710 { "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789",
711 "\x1e\x07\xbe\x23\xc2\x6a\x86\xea\x37\xea\x81\x0c\x8e\xc7\x80\x93"
712 "\x52\x51\x5a\x97\x0e\x92\x53\xc2\x6f\x53\x6c\xfc\x7a\x99\x96\xc4"
713 "\x5c\x83\x70\x58\x3e\x0a\x78\xfa\x4a\x90\x04\x1d\x71\xa4\xce\xab"
714 "\x74\x23\xf1\x9c\x71\xb9\xd5\xa3\xe0\x12\x49\xf0\xbe\xbd\x58\x94" },
715 { "123456789012345678901234567890123456789012345678901234567890"
716 "12345678901234567890",
717 "\x72\xec\x1e\xf1\x12\x4a\x45\xb0\x47\xe8\xb7\xc7\x5a\x93\x21\x95"
718 "\x13\x5b\xb6\x1d\xe2\x4e\xc0\xd1\x91\x40\x42\x24\x6e\x0a\xec\x3a"
719 "\x23\x54\xe0\x93\xd7\x6f\x30\x48\xb4\x56\x76\x43\x46\x90\x0c\xb1"
720 "\x30\xd2\xa4\xfd\x5d\xd1\x6a\xbb\x5e\x30\xbc\xb8\x50\xde\xe8\x43" }
721 };
722 #define ntests (sizeof (tests) / sizeof (tests[0]))
723
724
725 static const struct
726 {
727 const char *salt;
728 const char *input;
729 const char *expected;
730 } tests2[] = {
731 { "$6$saltstring", "Hello world!",
732 "$6$saltstring$svn8UoSVapNtMuq1ukKS4tPQd8iKwSMHWjl/O817G3uBnIFNjnQJu"
733 "esI68u4OTLiBFdcbYEdFCoEOfaS35inz1"},
734 { "$6$rounds=10000$saltstringsaltstring", "Hello world!",
735 "$6$rounds=10000$saltstringsaltst$OW1/O6BYHV6BcXZu8QVeXbDWra3Oeqh0sb"
736 "HbbMCVNSnCM/UrjmM0Dp8vOuZeHBy/YTBmSK6H9qs/y3RnOaw5v." },
737 { "$6$rounds=5000$toolongsaltstring", "This is just a test",
738 "$6$rounds=5000$toolongsaltstrin$lQ8jolhgVRVhY4b5pZKaysCLi0QBxGoNeKQ"
739 "zQ3glMhwllF7oGDZxUhx1yxdYcz/e1JSbq3y6JMxxl8audkUEm0" },
740 { "$6$rounds=1400$anotherlongsaltstring",
741 "a very much longer text to encrypt. This one even stretches over more"
742 "than one line.",
743 "$6$rounds=1400$anotherlongsalts$POfYwTEok97VWcjxIiSOjiykti.o/pQs.wP"
744 "vMxQ6Fm7I6IoYN3CmLs66x9t0oSwbtEW7o7UmJEiDwGqd8p4ur1" },
745 { "$6$rounds=77777$short",
746 "we have a short salt string but not a short password",
747 "$6$rounds=77777$short$WuQyW2YR.hBNpjjRhpYD/ifIw05xdfeEyQoMxIXbkvr0g"
748 "ge1a1x3yRULJ5CCaUeOxFmtlcGZelFl5CxtgfiAc0" },
749 { "$6$rounds=123456$asaltof16chars..", "a short string",
750 "$6$rounds=123456$asaltof16chars..$BtCwjqMJGx5hrJhZywWvt0RLE8uZ4oPwc"
751 "elCjmw2kSYu.Ec6ycULevoBK25fs2xXgMNrCzIMVcgEJAstJeonj1" },
752 { "$6$rounds=10$roundstoolow", "the minimum number is still observed",
753 "$6$rounds=1000$roundstoolow$kUMsbe306n21p9R.FRkW3IGn.S9NPN0x50YhH1x"
754 "hLsPuWGsUSklZt58jaTfF4ZEQpyUNGc0dqbpBYYBaHHrsX." },
755 };
756 #define ntests2 (sizeof (tests2) / sizeof (tests2[0]))
757
758
759 int main (void) {
760 struct sha512_ctx ctx;
761 char sum[64];
762 int result = 0;
763 int cnt;
764 int i;
765 char buf[1000];
766 static const char expected[64] =
767 "\xe7\x18\x48\x3d\x0c\xe7\x69\x64\x4e\x2e\x42\xc7\xbc\x15\xb4\x63"
768 "\x8e\x1f\x98\xb1\x3b\x20\x44\x28\x56\x32\xa8\x03\xaf\xa9\x73\xeb"
769 "\xde\x0f\xf2\x44\x87\x7e\xa6\x0a\x4c\xb0\x43\x2c\xe5\x77\xc3\x1b"
770 "\xeb\x00\x9c\x5c\x2c\x49\xaa\x2e\x4e\xad\xb2\x17\xad\x8c\xc0\x9b";
771
772 for (cnt = 0; cnt < (int) ntests; ++cnt) {
773 sha512_init_ctx (&ctx);
774 sha512_process_bytes (tests[cnt].input, strlen (tests[cnt].input), &ctx);
775 sha512_finish_ctx (&ctx, sum);
776 if (memcmp (tests[cnt].result, sum, 64) != 0) {
777 printf ("test %d run %d failed\n", cnt, 1);
778 result = 1;
779 }
780
781 sha512_init_ctx (&ctx);
782 for (i = 0; tests[cnt].input[i] != '\0'; ++i) {
783 sha512_process_bytes (&tests[cnt].input[i], 1, &ctx);
784 }
785 sha512_finish_ctx (&ctx, sum);
786 if (memcmp (tests[cnt].result, sum, 64) != 0) {
787 printf ("test %d run %d failed\n", cnt, 2);
788 result = 1;
789 }
790 }
791
792
793
794 memset (buf, 'a', sizeof (buf));
795 sha512_init_ctx (&ctx);
796 for (i = 0; i < 1000; ++i) {
797 sha512_process_bytes (buf, sizeof (buf), &ctx);
798 }
799
800 sha512_finish_ctx (&ctx, sum);
801 if (memcmp (expected, sum, 64) != 0) {
802 printf ("test %d failed\n", cnt);
803 result = 1;
804 }
805
806 for (cnt = 0; cnt < ntests2; ++cnt) {
807 char *cp = php_sha512_crypt(tests2[cnt].input, tests2[cnt].salt);
808
809 if (strcmp (cp, tests2[cnt].expected) != 0) {
810 printf ("test %d: expected \"%s\", got \"%s\"\n",
811 cnt, tests2[cnt].expected, cp);
812 result = 1;
813 }
814 }
815
816 if (result == 0) {
817 puts ("all tests OK");
818 }
819
820 return result;
821 }
822 #endif