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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) return;
110
111 if (group->meth->group_finish != 0)
112 group->meth->group_finish(group);
113
114 EC_GROUP_free_extra_data(group);
115
116 OPENSSL_free(group);
117 }
118
119
120void EC_GROUP_clear_free(EC_GROUP *group)
121 {
122 if (!group) return;
123
124 if (group->meth->group_clear_finish != 0)
125 group->meth->group_clear_finish(group);
126 else if (group->meth != NULL && group->meth->group_finish != 0)
127 group->meth->group_finish(group);
128
129 EC_GROUP_clear_free_extra_data(group);
130
131 OPENSSL_cleanse(group, sizeof *group);
132 OPENSSL_free(group);
133 }
134
135
136int EC_GROUP_copy(EC_GROUP *dest, const EC_GROUP *src)
137 {
138 if (dest->meth->group_copy == 0)
139 {
140 ECerr(EC_F_EC_GROUP_COPY, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
141 return 0;
142 }
143 if (dest->meth != src->meth)
144 {
145 ECerr(EC_F_EC_GROUP_COPY, EC_R_INCOMPATIBLE_OBJECTS);
146 return 0;
147 }
148 if (dest == src)
149 return 1;
150
151 EC_GROUP_clear_free_extra_data(dest);
152 if (src->extra_data_dup_func)
153 {
154 if (src->extra_data != NULL)
155 {
156 dest->extra_data = src->extra_data_dup_func(src->extra_data);
157 if (dest->extra_data == NULL)
158 return 0;
159 }
160
161 dest->extra_data_dup_func = src->extra_data_dup_func;
162 dest->extra_data_free_func = src->extra_data_free_func;
163 dest->extra_data_clear_free_func = src->extra_data_clear_free_func;
164 }
165
166 return dest->meth->group_copy(dest, src);
167 }
168
169
170const EC_METHOD *EC_GROUP_method_of(const EC_GROUP *group)
171 {
172 return group->meth;
173 }
174
175
176int EC_GROUP_set_curve_GFp(EC_GROUP *group, const BIGNUM *p, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx)
177 {
178 if (group->meth->group_set_curve_GFp == 0)
179 {
180 ECerr(EC_F_EC_GROUP_SET_CURVE_GFP, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
181 return 0;
182 }
183 return group->meth->group_set_curve_GFp(group, p, a, b, ctx);
184 }
185
186
187int EC_GROUP_get_curve_GFp(const EC_GROUP *group, BIGNUM *p, BIGNUM *a, BIGNUM *b, BN_CTX *ctx)
188 {
189 if (group->meth->group_get_curve_GFp == 0)
190 {
191 ECerr(EC_F_EC_GROUP_GET_CURVE_GFP, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
192 return 0;
193 }
194 return group->meth->group_get_curve_GFp(group, p, a, b, ctx);
195 }
196
197
198int EC_GROUP_set_generator(EC_GROUP *group, const EC_POINT *generator, const BIGNUM *order, const BIGNUM *cofactor)
199 {
200 if (group->meth->group_set_generator == 0)
201 {
202 ECerr(EC_F_EC_GROUP_SET_GENERATOR, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
203 return 0;
204 }
205 return group->meth->group_set_generator(group, generator, order, cofactor);
206 }
207
208
209EC_POINT *EC_GROUP_get0_generator(const EC_GROUP *group)
210 {
211 if (group->meth->group_get0_generator == 0)
212 {
213 ECerr(EC_F_EC_GROUP_GET0_GENERATOR, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
214 return 0;
215 }
216 return group->meth->group_get0_generator(group);
217 }
218
219
220int EC_GROUP_get_order(const EC_GROUP *group, BIGNUM *order, BN_CTX *ctx)
221 {
222 if (group->meth->group_get_order == 0)
223 {
224 ECerr(EC_F_EC_GROUP_GET_ORDER, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
225 return 0;
226 }
227 return group->meth->group_get_order(group, order, ctx);
228 }
229
230
231int EC_GROUP_get_cofactor(const EC_GROUP *group, BIGNUM *cofactor, BN_CTX *ctx)
232 {
233 if (group->meth->group_get_cofactor == 0)
234 {
235 ECerr(EC_F_EC_GROUP_GET_COFACTOR, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
236 return 0;
237 }
238 return group->meth->group_get_cofactor(group, cofactor, ctx);
239 }
240
241
242/* this has 'package' visibility */
243int EC_GROUP_set_extra_data(EC_GROUP *group, void *extra_data, void *(*extra_data_dup_func)(void *),
244 void (*extra_data_free_func)(void *), void (*extra_data_clear_free_func)(void *))
245 {
246 if ((group->extra_data != NULL)
247 || (group->extra_data_dup_func != 0)
248 || (group->extra_data_free_func != 0)
249 || (group->extra_data_clear_free_func != 0))
250 {
251 ECerr(EC_F_EC_GROUP_SET_EXTRA_DATA, EC_R_SLOT_FULL);
252 return 0;
253 }
254
255 group->extra_data = extra_data;
256 group->extra_data_dup_func = extra_data_dup_func;
257 group->extra_data_free_func = extra_data_free_func;
258 group->extra_data_clear_free_func = extra_data_clear_free_func;
259 return 1;
260 }
261
262
263/* this has 'package' visibility */
264void *EC_GROUP_get_extra_data(const EC_GROUP *group, void *(*extra_data_dup_func)(void *),
265 void (*extra_data_free_func)(void *), void (*extra_data_clear_free_func)(void *))
266 {
267 if ((group->extra_data_dup_func != extra_data_dup_func)
268 || (group->extra_data_free_func != extra_data_free_func)
269 || (group->extra_data_clear_free_func != extra_data_clear_free_func))
270 {
271#if 0 /* this was an error in 0.9.7, but that does not make a lot of sense */
272 ECerr(..._F_EC_GROUP_GET_EXTRA_DATA, ..._R_NO_SUCH_EXTRA_DATA);
273#endif
274 return NULL;
275 }
276
277 return group->extra_data;
278 }
279
280
281/* this has 'package' visibility */
282void EC_GROUP_free_extra_data(EC_GROUP *group)
283 {
284 if (group->extra_data_free_func)
285 group->extra_data_free_func(group->extra_data);
286 group->extra_data = NULL;
287 group->extra_data_dup_func = 0;
288 group->extra_data_free_func = 0;
289 group->extra_data_clear_free_func = 0;
290 }
291
292
293/* this has 'package' visibility */
294void EC_GROUP_clear_free_extra_data(EC_GROUP *group)
295 {
296 if (group->extra_data_clear_free_func)
297 group->extra_data_clear_free_func(group->extra_data);
298 else if (group->extra_data_free_func)
299 group->extra_data_free_func(group->extra_data);
300 group->extra_data = NULL;
301 group->extra_data_dup_func = 0;
302 group->extra_data_free_func = 0;
303 group->extra_data_clear_free_func = 0;
304 }
305
306
307
308/* functions for EC_POINT objects */
309
310EC_POINT *EC_POINT_new(const EC_GROUP *group)
311 {
312 EC_POINT *ret;
313
314 if (group == NULL)
315 {
316 ECerr(EC_F_EC_POINT_NEW, ERR_R_PASSED_NULL_PARAMETER);
317 return NULL;
318 }
319 if (group->meth->point_init == 0)
320 {
321 ECerr(EC_F_EC_POINT_NEW, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
322 return NULL;
323 }
324
325 ret = OPENSSL_malloc(sizeof *ret);
326 if (ret == NULL)
327 {
328 ECerr(EC_F_EC_POINT_NEW, ERR_R_MALLOC_FAILURE);
329 return NULL;
330 }
331
332 ret->meth = group->meth;
333
334 if (!ret->meth->point_init(ret))
335 {
336 OPENSSL_free(ret);
337 return NULL;
338 }
339
340 return ret;
341 }
342
343
344void EC_POINT_free(EC_POINT *point)
345 {
346 if (!point) return;
347
348 if (point->meth->point_finish != 0)
349 point->meth->point_finish(point);
350 OPENSSL_free(point);
351 }
352
353
354void EC_POINT_clear_free(EC_POINT *point)
355 {
356 if (!point) return;
357
358 if (point->meth->point_clear_finish != 0)
359 point->meth->point_clear_finish(point);
360 else if (point->meth != NULL && point->meth->point_finish != 0)
361 point->meth->point_finish(point);
362 OPENSSL_cleanse(point, sizeof *point);
363 OPENSSL_free(point);
364 }
365
366
367int EC_POINT_copy(EC_POINT *dest, const EC_POINT *src)
368 {
369 if (dest->meth->point_copy == 0)
370 {
371 ECerr(EC_F_EC_POINT_COPY, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
372 return 0;
373 }
374 if (dest->meth != src->meth)
375 {
376 ECerr(EC_F_EC_POINT_COPY, EC_R_INCOMPATIBLE_OBJECTS);
377 return 0;
378 }
379 if (dest == src)
380 return 1;
381 return dest->meth->point_copy(dest, src);
382 }
383
384
385const EC_METHOD *EC_POINT_method_of(const EC_POINT *point)
386 {
387 return point->meth;
388 }
389
390
391int EC_POINT_set_to_infinity(const EC_GROUP *group, EC_POINT *point)
392 {
393 if (group->meth->point_set_to_infinity == 0)
394 {
395 ECerr(EC_F_EC_POINT_SET_TO_INFINITY, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
396 return 0;
397 }
398 if (group->meth != point->meth)
399 {
400 ECerr(EC_F_EC_POINT_SET_TO_INFINITY, EC_R_INCOMPATIBLE_OBJECTS);
401 return 0;
402 }
403 return group->meth->point_set_to_infinity(group, point);
404 }
405
406
407int EC_POINT_set_Jprojective_coordinates_GFp(const EC_GROUP *group, EC_POINT *point,
408 const BIGNUM *x, const BIGNUM *y, const BIGNUM *z, BN_CTX *ctx)
409 {
410 if (group->meth->point_set_Jprojective_coordinates_GFp == 0)
411 {
412 ECerr(EC_F_EC_POINT_SET_JPROJECTIVE_COORDINATES_GFP, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
413 return 0;
414 }
415 if (group->meth != point->meth)
416 {
417 ECerr(EC_F_EC_POINT_SET_JPROJECTIVE_COORDINATES_GFP, EC_R_INCOMPATIBLE_OBJECTS);
418 return 0;
419 }
420 return group->meth->point_set_Jprojective_coordinates_GFp(group, point, x, y, z, ctx);
421 }
422
423
424int EC_POINT_get_Jprojective_coordinates_GFp(const EC_GROUP *group, const EC_POINT *point,
425 BIGNUM *x, BIGNUM *y, BIGNUM *z, BN_CTX *ctx)
426 {
427 if (group->meth->point_get_Jprojective_coordinates_GFp == 0)
428 {
429 ECerr(EC_F_EC_POINT_GET_JPROJECTIVE_COORDINATES_GFP, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
430 return 0;
431 }
432 if (group->meth != point->meth)
433 {
434 ECerr(EC_F_EC_POINT_GET_JPROJECTIVE_COORDINATES_GFP, EC_R_INCOMPATIBLE_OBJECTS);
435 return 0;
436 }
437 return group->meth->point_get_Jprojective_coordinates_GFp(group, point, x, y, z, ctx);
438 }
439
440
441int EC_POINT_set_affine_coordinates_GFp(const EC_GROUP *group, EC_POINT *point,
442 const BIGNUM *x, const BIGNUM *y, BN_CTX *ctx)
443 {
444 if (group->meth->point_set_affine_coordinates_GFp == 0)
445 {
446 ECerr(EC_F_EC_POINT_SET_AFFINE_COORDINATES_GFP, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
447 return 0;
448 }
449 if (group->meth != point->meth)
450 {
451 ECerr(EC_F_EC_POINT_SET_AFFINE_COORDINATES_GFP, EC_R_INCOMPATIBLE_OBJECTS);
452 return 0;
453 }
454 return group->meth->point_set_affine_coordinates_GFp(group, point, x, y, ctx);
455 }
456
457
458int EC_POINT_get_affine_coordinates_GFp(const EC_GROUP *group, const EC_POINT *point,
459 BIGNUM *x, BIGNUM *y, BN_CTX *ctx)
460 {
461 if (group->meth->point_get_affine_coordinates_GFp == 0)
462 {
463 ECerr(EC_F_EC_POINT_GET_AFFINE_COORDINATES_GFP, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
464 return 0;
465 }
466 if (group->meth != point->meth)
467 {
468 ECerr(EC_F_EC_POINT_GET_AFFINE_COORDINATES_GFP, EC_R_INCOMPATIBLE_OBJECTS);
469 return 0;
470 }
471 return group->meth->point_get_affine_coordinates_GFp(group, point, x, y, ctx);
472 }
473
474
475int EC_POINT_set_compressed_coordinates_GFp(const EC_GROUP *group, EC_POINT *point,
476 const BIGNUM *x, int y_bit, BN_CTX *ctx)
477 {
478 if (group->meth->point_set_compressed_coordinates_GFp == 0)
479 {
480 ECerr(EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GFP, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
481 return 0;
482 }
483 if (group->meth != point->meth)
484 {
485 ECerr(EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GFP, EC_R_INCOMPATIBLE_OBJECTS);
486 return 0;
487 }
488 return group->meth->point_set_compressed_coordinates_GFp(group, point, x, y_bit, ctx);
489 }
490
491
492size_t EC_POINT_point2oct(const EC_GROUP *group, const EC_POINT *point, point_conversion_form_t form,
493 unsigned char *buf, size_t len, BN_CTX *ctx)
494 {
495 if (group->meth->point2oct == 0)
496 {
497 ECerr(EC_F_EC_POINT_POINT2OCT, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
498 return 0;
499 }
500 if (group->meth != point->meth)
501 {
502 ECerr(EC_F_EC_POINT_POINT2OCT, EC_R_INCOMPATIBLE_OBJECTS);
503 return 0;
504 }
505 return group->meth->point2oct(group, point, form, buf, len, ctx);
506 }
507
508
509int EC_POINT_oct2point(const EC_GROUP *group, EC_POINT *point,
510 const unsigned char *buf, size_t len, BN_CTX *ctx)
511 {
512 if (group->meth->oct2point == 0)
513 {
514 ECerr(EC_F_EC_POINT_OCT2POINT, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
515 return 0;
516 }
517 if (group->meth != point->meth)
518 {
519 ECerr(EC_F_EC_POINT_OCT2POINT, EC_R_INCOMPATIBLE_OBJECTS);
520 return 0;
521 }
522 return group->meth->oct2point(group, point, buf, len, ctx);
523 }
524
525
526int EC_POINT_add(const EC_GROUP *group, EC_POINT *r, const EC_POINT *a, const EC_POINT *b, BN_CTX *ctx)
527 {
528 if (group->meth->add == 0)
529 {
530 ECerr(EC_F_EC_POINT_ADD, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
531 return 0;
532 }
533 if ((group->meth != r->meth) || (r->meth != a->meth) || (a->meth != b->meth))
534 {
535 ECerr(EC_F_EC_POINT_ADD, EC_R_INCOMPATIBLE_OBJECTS);
536 return 0;
537 }
538 return group->meth->add(group, r, a, b, ctx);
539 }
540
541
542int EC_POINT_dbl(const EC_GROUP *group, EC_POINT *r, const EC_POINT *a, BN_CTX *ctx)
543 {
544 if (group->meth->dbl == 0)
545 {
546 ECerr(EC_F_EC_POINT_DBL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
547 return 0;
548 }
549 if ((group->meth != r->meth) || (r->meth != a->meth))
550 {
551 ECerr(EC_F_EC_POINT_DBL, EC_R_INCOMPATIBLE_OBJECTS);
552 return 0;
553 }
554 return group->meth->dbl(group, r, a, ctx);
555 }
556
557
558int EC_POINT_invert(const EC_GROUP *group, EC_POINT *a, BN_CTX *ctx)
559 {
560 if (group->meth->dbl == 0)
561 {
562 ECerr(EC_F_EC_POINT_DBL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
563 return 0;
564 }
565 if (group->meth != a->meth)
566 {
567 ECerr(EC_F_EC_POINT_DBL, EC_R_INCOMPATIBLE_OBJECTS);
568 return 0;
569 }
570 return group->meth->invert(group, a, ctx);
571 }
572
573
574int EC_POINT_is_at_infinity(const EC_GROUP *group, const EC_POINT *point)
575 {
576 if (group->meth->is_at_infinity == 0)
577 {
578 ECerr(EC_F_EC_POINT_IS_AT_INFINITY, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
579 return 0;
580 }
581 if (group->meth != point->meth)
582 {
583 ECerr(EC_F_EC_POINT_IS_AT_INFINITY, EC_R_INCOMPATIBLE_OBJECTS);
584 return 0;
585 }
586 return group->meth->is_at_infinity(group, point);
587 }
588
589
590int EC_POINT_is_on_curve(const EC_GROUP *group, const EC_POINT *point, BN_CTX *ctx)
591 {
592 if (group->meth->is_on_curve == 0)
593 {
594 ECerr(EC_F_EC_POINT_IS_ON_CURVE, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
595 return 0;
596 }
597 if (group->meth != point->meth)
598 {
599 ECerr(EC_F_EC_POINT_IS_ON_CURVE, EC_R_INCOMPATIBLE_OBJECTS);
600 return 0;
601 }
602 return group->meth->is_on_curve(group, point, ctx);
603 }
604
605
606int EC_POINT_cmp(const EC_GROUP *group, const EC_POINT *a, const EC_POINT *b, BN_CTX *ctx)
607 {
608 if (group->meth->point_cmp == 0)
609 {
610 ECerr(EC_F_EC_POINT_CMP, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
611 return 0;
612 }
613 if ((group->meth != a->meth) || (a->meth != b->meth))
614 {
615 ECerr(EC_F_EC_POINT_CMP, EC_R_INCOMPATIBLE_OBJECTS);
616 return 0;
617 }
618 return group->meth->point_cmp(group, a, b, ctx);
619 }
620
621
622int EC_POINT_make_affine(const EC_GROUP *group, EC_POINT *point, BN_CTX *ctx)
623 {
624 if (group->meth->make_affine == 0)
625 {
626 ECerr(EC_F_EC_POINT_MAKE_AFFINE, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
627 return 0;
628 }
629 if (group->meth != point->meth)
630 {
631 ECerr(EC_F_EC_POINT_MAKE_AFFINE, EC_R_INCOMPATIBLE_OBJECTS);
632 return 0;
633 }
634 return group->meth->make_affine(group, point, ctx);
635 }
636
637
638int EC_POINTs_make_affine(const EC_GROUP *group, size_t num, EC_POINT *points[], BN_CTX *ctx)
639 {
640 size_t i;
641
642 if (group->meth->points_make_affine == 0)
643 {
644 ECerr(EC_F_EC_POINTS_MAKE_AFFINE, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
645 return 0;
646 }
647 for (i = 0; i < num; i++)
648 {
649 if (group->meth != points[i]->meth)
650 {
651 ECerr(EC_F_EC_POINTS_MAKE_AFFINE, EC_R_INCOMPATIBLE_OBJECTS);
652 return 0;
653 }
654 }
655 return group->meth->points_make_affine(group, num, points, ctx);
656 }
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