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Diffstat (limited to 'src/lib/libcrypto/ec/ec_lib.c')
-rw-r--r-- | src/lib/libcrypto/ec/ec_lib.c | 646 |
1 files changed, 646 insertions, 0 deletions
diff --git a/src/lib/libcrypto/ec/ec_lib.c b/src/lib/libcrypto/ec/ec_lib.c new file mode 100644 index 0000000000..e0d78d67fb --- /dev/null +++ b/src/lib/libcrypto/ec/ec_lib.c | |||
@@ -0,0 +1,646 @@ | |||
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 | |||
63 | static const char EC_version[] = "EC" OPENSSL_VERSION_PTEXT; | ||
64 | |||
65 | |||
66 | /* functions for EC_GROUP objects */ | ||
67 | |||
68 | EC_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 | |||
107 | void 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 | |||
118 | void 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 | |||
132 | int 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 | |||
166 | const EC_METHOD *EC_GROUP_method_of(const EC_GROUP *group) | ||
167 | { | ||
168 | return group->meth; | ||
169 | } | ||
170 | |||
171 | |||
172 | int 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 | |||
183 | int 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 | |||
194 | int 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 | |||
205 | EC_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 | |||
216 | int 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 | |||
227 | int 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 */ | ||
239 | int 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 */ | ||
260 | void *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 */ | ||
276 | void 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 */ | ||
288 | void 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 | |||
304 | EC_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 | |||
338 | void 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 | |||
346 | void 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 | |||
357 | int 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 | |||
375 | const EC_METHOD *EC_POINT_method_of(const EC_POINT *point) | ||
376 | { | ||
377 | return point->meth; | ||
378 | } | ||
379 | |||
380 | |||
381 | int 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 | |||
397 | int 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 | |||
414 | int 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 | |||
431 | int 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 | |||
448 | int 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 | |||
465 | int 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 | |||
482 | size_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 | |||
499 | int 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 | |||
516 | int 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 | |||
532 | int 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 | |||
548 | int 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 | |||
564 | int 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 | |||
580 | int 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 | |||
596 | int 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 | |||
612 | int 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 | |||
628 | int 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 | } | ||