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diff --git a/src/lib/libcrypto/ec/ec_lib.c b/src/lib/libcrypto/ec/ec_lib.c
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1/* crypto/ec/ec_lib.c */
2/* ====================================================================
3 * Copyright (c) 1998-2001 The OpenSSL Project. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 *
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in
14 * the documentation and/or other materials provided with the
15 * distribution.
16 *
17 * 3. All advertising materials mentioning features or use of this
18 * software must display the following acknowledgment:
19 * "This product includes software developed by the OpenSSL Project
20 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
21 *
22 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
23 * endorse or promote products derived from this software without
24 * prior written permission. For written permission, please contact
25 * openssl-core@openssl.org.
26 *
27 * 5. Products derived from this software may not be called "OpenSSL"
28 * nor may "OpenSSL" appear in their names without prior written
29 * permission of the OpenSSL Project.
30 *
31 * 6. Redistributions of any form whatsoever must retain the following
32 * acknowledgment:
33 * "This product includes software developed by the OpenSSL Project
34 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
35 *
36 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
37 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
38 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
39 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
40 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
41 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
42 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
43 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
44 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
45 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
46 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
47 * OF THE POSSIBILITY OF SUCH DAMAGE.
48 * ====================================================================
49 *
50 * This product includes cryptographic software written by Eric Young
51 * (eay@cryptsoft.com). This product includes software written by Tim
52 * Hudson (tjh@cryptsoft.com).
53 *
54 */
55
56#include <string.h>
57
58#include <openssl/err.h>
59#include <openssl/opensslv.h>
60
61#include "ec_lcl.h"
62
63static const char EC_version[] = "EC" OPENSSL_VERSION_PTEXT;
64
65
66/* functions for EC_GROUP objects */
67
68EC_GROUP *EC_GROUP_new(const EC_METHOD *meth)
69 {
70 EC_GROUP *ret;
71
72 if (meth == NULL)
73 {
74 ECerr(EC_F_EC_GROUP_NEW, ERR_R_PASSED_NULL_PARAMETER);
75 return NULL;
76 }
77 if (meth->group_init == 0)
78 {
79 ECerr(EC_F_EC_GROUP_NEW, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
80 return NULL;
81 }
82
83 ret = OPENSSL_malloc(sizeof *ret);
84 if (ret == NULL)
85 {
86 ECerr(EC_F_EC_GROUP_NEW, ERR_R_MALLOC_FAILURE);
87 return NULL;
88 }
89
90 ret->meth = meth;
91
92 ret->extra_data = NULL;
93 ret->extra_data_dup_func = 0;
94 ret->extra_data_free_func = 0;
95 ret->extra_data_clear_free_func = 0;
96
97 if (!meth->group_init(ret))
98 {
99 OPENSSL_free(ret);
100 return NULL;
101 }
102
103 return ret;
104 }
105
106
107void EC_GROUP_free(EC_GROUP *group)
108 {
109 if (group->meth->group_finish != 0)
110 group->meth->group_finish(group);
111
112 EC_GROUP_free_extra_data(group);
113
114 OPENSSL_free(group);
115 }
116
117
118void EC_GROUP_clear_free(EC_GROUP *group)
119 {
120 if (group->meth->group_clear_finish != 0)
121 group->meth->group_clear_finish(group);
122 else if (group->meth != NULL && group->meth->group_finish != 0)
123 group->meth->group_finish(group);
124
125 EC_GROUP_clear_free_extra_data(group);
126
127 memset(group, 0, sizeof *group);
128 OPENSSL_free(group);
129 }
130
131
132int EC_GROUP_copy(EC_GROUP *dest, const EC_GROUP *src)
133 {
134 if (dest->meth->group_copy == 0)
135 {
136 ECerr(EC_F_EC_GROUP_COPY, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
137 return 0;
138 }
139 if (dest->meth != src->meth)
140 {
141 ECerr(EC_F_EC_GROUP_COPY, EC_R_INCOMPATIBLE_OBJECTS);
142 return 0;
143 }
144 if (dest == src)
145 return 1;
146
147 EC_GROUP_clear_free_extra_data(dest);
148 if (src->extra_data_dup_func)
149 {
150 if (src->extra_data != NULL)
151 {
152 dest->extra_data = src->extra_data_dup_func(src->extra_data);
153 if (dest->extra_data == NULL)
154 return 0;
155 }
156
157 dest->extra_data_dup_func = src->extra_data_dup_func;
158 dest->extra_data_free_func = src->extra_data_free_func;
159 dest->extra_data_clear_free_func = src->extra_data_clear_free_func;
160 }
161
162 return dest->meth->group_copy(dest, src);
163 }
164
165
166const EC_METHOD *EC_GROUP_method_of(const EC_GROUP *group)
167 {
168 return group->meth;
169 }
170
171
172int EC_GROUP_set_curve_GFp(EC_GROUP *group, const BIGNUM *p, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx)
173 {
174 if (group->meth->group_set_curve_GFp == 0)
175 {
176 ECerr(EC_F_EC_GROUP_SET_CURVE_GFP, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
177 return 0;
178 }
179 return group->meth->group_set_curve_GFp(group, p, a, b, ctx);
180 }
181
182
183int EC_GROUP_get_curve_GFp(const EC_GROUP *group, BIGNUM *p, BIGNUM *a, BIGNUM *b, BN_CTX *ctx)
184 {
185 if (group->meth->group_get_curve_GFp == 0)
186 {
187 ECerr(EC_F_EC_GROUP_GET_CURVE_GFP, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
188 return 0;
189 }
190 return group->meth->group_get_curve_GFp(group, p, a, b, ctx);
191 }
192
193
194int EC_GROUP_set_generator(EC_GROUP *group, const EC_POINT *generator, const BIGNUM *order, const BIGNUM *cofactor)
195 {
196 if (group->meth->group_set_generator == 0)
197 {
198 ECerr(EC_F_EC_GROUP_SET_GENERATOR, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
199 return 0;
200 }
201 return group->meth->group_set_generator(group, generator, order, cofactor);
202 }
203
204
205EC_POINT *EC_GROUP_get0_generator(const EC_GROUP *group)
206 {
207 if (group->meth->group_get0_generator == 0)
208 {
209 ECerr(EC_F_EC_GROUP_GET0_GENERATOR, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
210 return 0;
211 }
212 return group->meth->group_get0_generator(group);
213 }
214
215
216int EC_GROUP_get_order(const EC_GROUP *group, BIGNUM *order, BN_CTX *ctx)
217 {
218 if (group->meth->group_get_order == 0)
219 {
220 ECerr(EC_F_EC_GROUP_GET_ORDER, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
221 return 0;
222 }
223 return group->meth->group_get_order(group, order, ctx);
224 }
225
226
227int EC_GROUP_get_cofactor(const EC_GROUP *group, BIGNUM *cofactor, BN_CTX *ctx)
228 {
229 if (group->meth->group_get_cofactor == 0)
230 {
231 ECerr(EC_F_EC_GROUP_GET_COFACTOR, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
232 return 0;
233 }
234 return group->meth->group_get_cofactor(group, cofactor, ctx);
235 }
236
237
238/* this has 'package' visibility */
239int EC_GROUP_set_extra_data(EC_GROUP *group, void *extra_data, void *(*extra_data_dup_func)(void *),
240 void (*extra_data_free_func)(void *), void (*extra_data_clear_free_func)(void *))
241 {
242 if ((group->extra_data != NULL)
243 || (group->extra_data_dup_func != 0)
244 || (group->extra_data_free_func != 0)
245 || (group->extra_data_clear_free_func != 0))
246 {
247 ECerr(EC_F_EC_GROUP_SET_EXTRA_DATA, EC_R_SLOT_FULL);
248 return 0;
249 }
250
251 group->extra_data = extra_data;
252 group->extra_data_dup_func = extra_data_dup_func;
253 group->extra_data_free_func = extra_data_free_func;
254 group->extra_data_clear_free_func = extra_data_clear_free_func;
255 return 1;
256 }
257
258
259/* this has 'package' visibility */
260void *EC_GROUP_get_extra_data(const EC_GROUP *group, void *(*extra_data_dup_func)(void *),
261 void (*extra_data_free_func)(void *), void (*extra_data_clear_free_func)(void *))
262 {
263 if ((group->extra_data_dup_func != extra_data_dup_func)
264 || (group->extra_data_free_func != extra_data_free_func)
265 || (group->extra_data_clear_free_func != extra_data_clear_free_func))
266 {
267 ECerr(EC_F_EC_GROUP_GET_EXTRA_DATA, EC_R_NO_SUCH_EXTRA_DATA);
268 return NULL;
269 }
270
271 return group->extra_data;
272 }
273
274
275/* this has 'package' visibility */
276void EC_GROUP_free_extra_data(EC_GROUP *group)
277 {
278 if (group->extra_data_free_func)
279 group->extra_data_free_func(group->extra_data);
280 group->extra_data = NULL;
281 group->extra_data_dup_func = 0;
282 group->extra_data_free_func = 0;
283 group->extra_data_clear_free_func = 0;
284 }
285
286
287/* this has 'package' visibility */
288void EC_GROUP_clear_free_extra_data(EC_GROUP *group)
289 {
290 if (group->extra_data_clear_free_func)
291 group->extra_data_clear_free_func(group->extra_data);
292 else if (group->extra_data_free_func)
293 group->extra_data_free_func(group->extra_data);
294 group->extra_data = NULL;
295 group->extra_data_dup_func = 0;
296 group->extra_data_free_func = 0;
297 group->extra_data_clear_free_func = 0;
298 }
299
300
301
302/* functions for EC_POINT objects */
303
304EC_POINT *EC_POINT_new(const EC_GROUP *group)
305 {
306 EC_POINT *ret;
307
308 if (group == NULL)
309 {
310 ECerr(EC_F_EC_POINT_NEW, ERR_R_PASSED_NULL_PARAMETER);
311 return NULL;
312 }
313 if (group->meth->point_init == 0)
314 {
315 ECerr(EC_F_EC_POINT_NEW, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
316 return NULL;
317 }
318
319 ret = OPENSSL_malloc(sizeof *ret);
320 if (ret == NULL)
321 {
322 ECerr(EC_F_EC_POINT_NEW, ERR_R_MALLOC_FAILURE);
323 return NULL;
324 }
325
326 ret->meth = group->meth;
327
328 if (!ret->meth->point_init(ret))
329 {
330 OPENSSL_free(ret);
331 return NULL;
332 }
333
334 return ret;
335 }
336
337
338void EC_POINT_free(EC_POINT *point)
339 {
340 if (point->meth->point_finish != 0)
341 point->meth->point_finish(point);
342 OPENSSL_free(point);
343 }
344
345
346void EC_POINT_clear_free(EC_POINT *point)
347 {
348 if (point->meth->point_clear_finish != 0)
349 point->meth->point_clear_finish(point);
350 else if (point->meth != NULL && point->meth->point_finish != 0)
351 point->meth->point_finish(point);
352 memset(point, 0, sizeof *point);
353 OPENSSL_free(point);
354 }
355
356
357int EC_POINT_copy(EC_POINT *dest, const EC_POINT *src)
358 {
359 if (dest->meth->point_copy == 0)
360 {
361 ECerr(EC_F_EC_POINT_COPY, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
362 return 0;
363 }
364 if (dest->meth != src->meth)
365 {
366 ECerr(EC_F_EC_POINT_COPY, EC_R_INCOMPATIBLE_OBJECTS);
367 return 0;
368 }
369 if (dest == src)
370 return 1;
371 return dest->meth->point_copy(dest, src);
372 }
373
374
375const EC_METHOD *EC_POINT_method_of(const EC_POINT *point)
376 {
377 return point->meth;
378 }
379
380
381int EC_POINT_set_to_infinity(const EC_GROUP *group, EC_POINT *point)
382 {
383 if (group->meth->point_set_to_infinity == 0)
384 {
385 ECerr(EC_F_EC_POINT_SET_TO_INFINITY, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
386 return 0;
387 }
388 if (group->meth != point->meth)
389 {
390 ECerr(EC_F_EC_POINT_SET_TO_INFINITY, EC_R_INCOMPATIBLE_OBJECTS);
391 return 0;
392 }
393 return group->meth->point_set_to_infinity(group, point);
394 }
395
396
397int EC_POINT_set_Jprojective_coordinates_GFp(const EC_GROUP *group, EC_POINT *point,
398 const BIGNUM *x, const BIGNUM *y, const BIGNUM *z, BN_CTX *ctx)
399 {
400 if (group->meth->point_set_Jprojective_coordinates_GFp == 0)
401 {
402 ECerr(EC_F_EC_POINT_SET_JPROJECTIVE_COORDINATES_GFP, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
403 return 0;
404 }
405 if (group->meth != point->meth)
406 {
407 ECerr(EC_F_EC_POINT_SET_JPROJECTIVE_COORDINATES_GFP, EC_R_INCOMPATIBLE_OBJECTS);
408 return 0;
409 }
410 return group->meth->point_set_Jprojective_coordinates_GFp(group, point, x, y, z, ctx);
411 }
412
413
414int EC_POINT_get_Jprojective_coordinates_GFp(const EC_GROUP *group, const EC_POINT *point,
415 BIGNUM *x, BIGNUM *y, BIGNUM *z, BN_CTX *ctx)
416 {
417 if (group->meth->point_get_Jprojective_coordinates_GFp == 0)
418 {
419 ECerr(EC_F_EC_POINT_GET_JPROJECTIVE_COORDINATES_GFP, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
420 return 0;
421 }
422 if (group->meth != point->meth)
423 {
424 ECerr(EC_F_EC_POINT_GET_JPROJECTIVE_COORDINATES_GFP, EC_R_INCOMPATIBLE_OBJECTS);
425 return 0;
426 }
427 return group->meth->point_get_Jprojective_coordinates_GFp(group, point, x, y, z, ctx);
428 }
429
430
431int EC_POINT_set_affine_coordinates_GFp(const EC_GROUP *group, EC_POINT *point,
432 const BIGNUM *x, const BIGNUM *y, BN_CTX *ctx)
433 {
434 if (group->meth->point_set_affine_coordinates_GFp == 0)
435 {
436 ECerr(EC_F_EC_POINT_SET_AFFINE_COORDINATES_GFP, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
437 return 0;
438 }
439 if (group->meth != point->meth)
440 {
441 ECerr(EC_F_EC_POINT_SET_AFFINE_COORDINATES_GFP, EC_R_INCOMPATIBLE_OBJECTS);
442 return 0;
443 }
444 return group->meth->point_set_affine_coordinates_GFp(group, point, x, y, ctx);
445 }
446
447
448int EC_POINT_get_affine_coordinates_GFp(const EC_GROUP *group, const EC_POINT *point,
449 BIGNUM *x, BIGNUM *y, BN_CTX *ctx)
450 {
451 if (group->meth->point_get_affine_coordinates_GFp == 0)
452 {
453 ECerr(EC_F_EC_POINT_GET_AFFINE_COORDINATES_GFP, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
454 return 0;
455 }
456 if (group->meth != point->meth)
457 {
458 ECerr(EC_F_EC_POINT_GET_AFFINE_COORDINATES_GFP, EC_R_INCOMPATIBLE_OBJECTS);
459 return 0;
460 }
461 return group->meth->point_get_affine_coordinates_GFp(group, point, x, y, ctx);
462 }
463
464
465int EC_POINT_set_compressed_coordinates_GFp(const EC_GROUP *group, EC_POINT *point,
466 const BIGNUM *x, int y_bit, BN_CTX *ctx)
467 {
468 if (group->meth->point_set_compressed_coordinates_GFp == 0)
469 {
470 ECerr(EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GFP, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
471 return 0;
472 }
473 if (group->meth != point->meth)
474 {
475 ECerr(EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GFP, EC_R_INCOMPATIBLE_OBJECTS);
476 return 0;
477 }
478 return group->meth->point_set_compressed_coordinates_GFp(group, point, x, y_bit, ctx);
479 }
480
481
482size_t EC_POINT_point2oct(const EC_GROUP *group, const EC_POINT *point, point_conversion_form_t form,
483 unsigned char *buf, size_t len, BN_CTX *ctx)
484 {
485 if (group->meth->point2oct == 0)
486 {
487 ECerr(EC_F_EC_POINT_POINT2OCT, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
488 return 0;
489 }
490 if (group->meth != point->meth)
491 {
492 ECerr(EC_F_EC_POINT_POINT2OCT, EC_R_INCOMPATIBLE_OBJECTS);
493 return 0;
494 }
495 return group->meth->point2oct(group, point, form, buf, len, ctx);
496 }
497
498
499int EC_POINT_oct2point(const EC_GROUP *group, EC_POINT *point,
500 const unsigned char *buf, size_t len, BN_CTX *ctx)
501 {
502 if (group->meth->oct2point == 0)
503 {
504 ECerr(EC_F_EC_POINT_OCT2POINT, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
505 return 0;
506 }
507 if (group->meth != point->meth)
508 {
509 ECerr(EC_F_EC_POINT_OCT2POINT, EC_R_INCOMPATIBLE_OBJECTS);
510 return 0;
511 }
512 return group->meth->oct2point(group, point, buf, len, ctx);
513 }
514
515
516int EC_POINT_add(const EC_GROUP *group, EC_POINT *r, const EC_POINT *a, const EC_POINT *b, BN_CTX *ctx)
517 {
518 if (group->meth->add == 0)
519 {
520 ECerr(EC_F_EC_POINT_ADD, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
521 return 0;
522 }
523 if ((group->meth != r->meth) || (r->meth != a->meth) || (a->meth != b->meth))
524 {
525 ECerr(EC_F_EC_POINT_ADD, EC_R_INCOMPATIBLE_OBJECTS);
526 return 0;
527 }
528 return group->meth->add(group, r, a, b, ctx);
529 }
530
531
532int EC_POINT_dbl(const EC_GROUP *group, EC_POINT *r, const EC_POINT *a, BN_CTX *ctx)
533 {
534 if (group->meth->dbl == 0)
535 {
536 ECerr(EC_F_EC_POINT_DBL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
537 return 0;
538 }
539 if ((group->meth != r->meth) || (r->meth != a->meth))
540 {
541 ECerr(EC_F_EC_POINT_DBL, EC_R_INCOMPATIBLE_OBJECTS);
542 return 0;
543 }
544 return group->meth->dbl(group, r, a, ctx);
545 }
546
547
548int EC_POINT_invert(const EC_GROUP *group, EC_POINT *a, BN_CTX *ctx)
549 {
550 if (group->meth->dbl == 0)
551 {
552 ECerr(EC_F_EC_POINT_DBL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
553 return 0;
554 }
555 if (group->meth != a->meth)
556 {
557 ECerr(EC_F_EC_POINT_DBL, EC_R_INCOMPATIBLE_OBJECTS);
558 return 0;
559 }
560 return group->meth->invert(group, a, ctx);
561 }
562
563
564int EC_POINT_is_at_infinity(const EC_GROUP *group, const EC_POINT *point)
565 {
566 if (group->meth->is_at_infinity == 0)
567 {
568 ECerr(EC_F_EC_POINT_IS_AT_INFINITY, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
569 return 0;
570 }
571 if (group->meth != point->meth)
572 {
573 ECerr(EC_F_EC_POINT_IS_AT_INFINITY, EC_R_INCOMPATIBLE_OBJECTS);
574 return 0;
575 }
576 return group->meth->is_at_infinity(group, point);
577 }
578
579
580int EC_POINT_is_on_curve(const EC_GROUP *group, const EC_POINT *point, BN_CTX *ctx)
581 {
582 if (group->meth->is_on_curve == 0)
583 {
584 ECerr(EC_F_EC_POINT_IS_ON_CURVE, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
585 return 0;
586 }
587 if (group->meth != point->meth)
588 {
589 ECerr(EC_F_EC_POINT_IS_ON_CURVE, EC_R_INCOMPATIBLE_OBJECTS);
590 return 0;
591 }
592 return group->meth->is_on_curve(group, point, ctx);
593 }
594
595
596int EC_POINT_cmp(const EC_GROUP *group, const EC_POINT *a, const EC_POINT *b, BN_CTX *ctx)
597 {
598 if (group->meth->point_cmp == 0)
599 {
600 ECerr(EC_F_EC_POINT_CMP, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
601 return 0;
602 }
603 if ((group->meth != a->meth) || (a->meth != b->meth))
604 {
605 ECerr(EC_F_EC_POINT_CMP, EC_R_INCOMPATIBLE_OBJECTS);
606 return 0;
607 }
608 return group->meth->point_cmp(group, a, b, ctx);
609 }
610
611
612int EC_POINT_make_affine(const EC_GROUP *group, EC_POINT *point, BN_CTX *ctx)
613 {
614 if (group->meth->make_affine == 0)
615 {
616 ECerr(EC_F_EC_POINT_MAKE_AFFINE, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
617 return 0;
618 }
619 if (group->meth != point->meth)
620 {
621 ECerr(EC_F_EC_POINT_MAKE_AFFINE, EC_R_INCOMPATIBLE_OBJECTS);
622 return 0;
623 }
624 return group->meth->make_affine(group, point, ctx);
625 }
626
627
628int EC_POINTs_make_affine(const EC_GROUP *group, size_t num, EC_POINT *points[], BN_CTX *ctx)
629 {
630 size_t i;
631
632 if (group->meth->points_make_affine == 0)
633 {
634 ECerr(EC_F_EC_POINTS_MAKE_AFFINE, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
635 return 0;
636 }
637 for (i = 0; i < num; i++)
638 {
639 if (group->meth != points[i]->meth)
640 {
641 ECerr(EC_F_EC_POINTS_MAKE_AFFINE, EC_R_INCOMPATIBLE_OBJECTS);
642 return 0;
643 }
644 }
645 return group->meth->points_make_affine(group, num, points, ctx);
646 }