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1 | /* pmeth_lib.c */ | |
2 | /* | |
3 | * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project | |
4 | * 2006. | |
5 | */ | |
6 | /* ==================================================================== | |
7 | * Copyright (c) 2006 The OpenSSL Project. All rights reserved. | |
8 | * | |
9 | * Redistribution and use in source and binary forms, with or without | |
10 | * modification, are permitted provided that the following conditions | |
11 | * are met: | |
12 | * | |
13 | * 1. Redistributions of source code must retain the above copyright | |
14 | * notice, this list of conditions and the following disclaimer. | |
15 | * | |
16 | * 2. Redistributions in binary form must reproduce the above copyright | |
17 | * notice, this list of conditions and the following disclaimer in | |
18 | * the documentation and/or other materials provided with the | |
19 | * distribution. | |
20 | * | |
21 | * 3. All advertising materials mentioning features or use of this | |
22 | * software must display the following acknowledgment: | |
23 | * "This product includes software developed by the OpenSSL Project | |
24 | * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" | |
25 | * | |
26 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | |
27 | * endorse or promote products derived from this software without | |
28 | * prior written permission. For written permission, please contact | |
29 | * licensing@OpenSSL.org. | |
30 | * | |
31 | * 5. Products derived from this software may not be called "OpenSSL" | |
32 | * nor may "OpenSSL" appear in their names without prior written | |
33 | * permission of the OpenSSL Project. | |
34 | * | |
35 | * 6. Redistributions of any form whatsoever must retain the following | |
36 | * acknowledgment: | |
37 | * "This product includes software developed by the OpenSSL Project | |
38 | * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" | |
39 | * | |
40 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | |
41 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
42 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
43 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | |
44 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
45 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
46 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
47 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
48 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
49 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
50 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
51 | * OF THE POSSIBILITY OF SUCH DAMAGE. | |
52 | * ==================================================================== | |
53 | * | |
54 | * This product includes cryptographic software written by Eric Young | |
55 | * (eay@cryptsoft.com). This product includes software written by Tim | |
56 | * Hudson (tjh@cryptsoft.com). | |
57 | * | |
58 | */ | |
59 | ||
60 | #include <stdio.h> | |
61 | #include <stdlib.h> | |
62 | #include "internal/cryptlib.h" | |
63 | #include <openssl/objects.h> | |
64 | #include <openssl/evp.h> | |
65 | #ifndef OPENSSL_NO_ENGINE | |
66 | # include <openssl/engine.h> | |
67 | #endif | |
68 | #include "internal/asn1_int.h" | |
69 | #include "internal/evp_int.h" | |
70 | ||
71 | typedef int sk_cmp_fn_type(const char *const *a, const char *const *b); | |
72 | ||
73 | DECLARE_STACK_OF(EVP_PKEY_METHOD) | |
74 | STACK_OF(EVP_PKEY_METHOD) *app_pkey_methods = NULL; | |
75 | ||
76 | extern const EVP_PKEY_METHOD rsa_pkey_meth, dh_pkey_meth, dsa_pkey_meth; | |
77 | extern const EVP_PKEY_METHOD ec_pkey_meth, hmac_pkey_meth, cmac_pkey_meth; | |
78 | extern const EVP_PKEY_METHOD dhx_pkey_meth; | |
79 | ||
80 | static const EVP_PKEY_METHOD *standard_methods[] = { | |
81 | #ifndef OPENSSL_NO_RSA | |
82 | &rsa_pkey_meth, | |
83 | #endif | |
84 | #ifndef OPENSSL_NO_DH | |
85 | &dh_pkey_meth, | |
86 | #endif | |
87 | #ifndef OPENSSL_NO_DSA | |
88 | &dsa_pkey_meth, | |
89 | #endif | |
90 | #ifndef OPENSSL_NO_EC | |
91 | &ec_pkey_meth, | |
92 | #endif | |
93 | &hmac_pkey_meth, | |
94 | &cmac_pkey_meth, | |
95 | #ifndef OPENSSL_NO_DH | |
96 | &dhx_pkey_meth | |
97 | #endif | |
98 | }; | |
99 | ||
100 | DECLARE_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, const EVP_PKEY_METHOD *, | |
101 | pmeth); | |
102 | ||
103 | static int pmeth_cmp(const EVP_PKEY_METHOD *const *a, | |
104 | const EVP_PKEY_METHOD *const *b) | |
105 | { | |
106 | return ((*a)->pkey_id - (*b)->pkey_id); | |
107 | } | |
108 | ||
109 | IMPLEMENT_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, const EVP_PKEY_METHOD *, | |
110 | pmeth); | |
111 | ||
112 | const EVP_PKEY_METHOD *EVP_PKEY_meth_find(int type) | |
113 | { | |
114 | EVP_PKEY_METHOD tmp; | |
115 | const EVP_PKEY_METHOD *t = &tmp, **ret; | |
116 | tmp.pkey_id = type; | |
117 | if (app_pkey_methods) { | |
118 | int idx; | |
119 | idx = sk_EVP_PKEY_METHOD_find(app_pkey_methods, &tmp); | |
120 | if (idx >= 0) | |
121 | return sk_EVP_PKEY_METHOD_value(app_pkey_methods, idx); | |
122 | } | |
123 | ret = OBJ_bsearch_pmeth(&t, standard_methods, | |
124 | sizeof(standard_methods) / | |
125 | sizeof(EVP_PKEY_METHOD *)); | |
126 | if (!ret || !*ret) | |
127 | return NULL; | |
128 | return *ret; | |
129 | } | |
130 | ||
131 | static EVP_PKEY_CTX *int_ctx_new(EVP_PKEY *pkey, ENGINE *e, int id) | |
132 | { | |
133 | EVP_PKEY_CTX *ret; | |
134 | const EVP_PKEY_METHOD *pmeth; | |
135 | if (id == -1) { | |
136 | if (!pkey || !pkey->ameth) | |
137 | return NULL; | |
138 | id = pkey->ameth->pkey_id; | |
139 | } | |
140 | #ifndef OPENSSL_NO_ENGINE | |
141 | if (pkey && pkey->engine) | |
142 | e = pkey->engine; | |
143 | /* Try to find an ENGINE which implements this method */ | |
144 | if (e) { | |
145 | if (!ENGINE_init(e)) { | |
146 | EVPerr(EVP_F_INT_CTX_NEW, ERR_R_ENGINE_LIB); | |
147 | return NULL; | |
148 | } | |
149 | } else | |
150 | e = ENGINE_get_pkey_meth_engine(id); | |
151 | ||
152 | /* | |
153 | * If an ENGINE handled this method look it up. Othewise use internal | |
154 | * tables. | |
155 | */ | |
156 | ||
157 | if (e) | |
158 | pmeth = ENGINE_get_pkey_meth(e, id); | |
159 | else | |
160 | #endif | |
161 | pmeth = EVP_PKEY_meth_find(id); | |
162 | ||
163 | if (pmeth == NULL) { | |
164 | EVPerr(EVP_F_INT_CTX_NEW, EVP_R_UNSUPPORTED_ALGORITHM); | |
165 | return NULL; | |
166 | } | |
167 | ||
168 | ret = OPENSSL_zalloc(sizeof(*ret)); | |
169 | if (!ret) { | |
170 | #ifndef OPENSSL_NO_ENGINE | |
171 | if (e) | |
172 | ENGINE_finish(e); | |
173 | #endif | |
174 | EVPerr(EVP_F_INT_CTX_NEW, ERR_R_MALLOC_FAILURE); | |
175 | return NULL; | |
176 | } | |
177 | ret->engine = e; | |
178 | ret->pmeth = pmeth; | |
179 | ret->operation = EVP_PKEY_OP_UNDEFINED; | |
180 | ret->pkey = pkey; | |
181 | if (pkey) | |
182 | CRYPTO_add(&pkey->references, 1, CRYPTO_LOCK_EVP_PKEY); | |
183 | ||
184 | if (pmeth->init) { | |
185 | if (pmeth->init(ret) <= 0) { | |
186 | EVP_PKEY_CTX_free(ret); | |
187 | return NULL; | |
188 | } | |
189 | } | |
190 | ||
191 | return ret; | |
192 | } | |
193 | ||
194 | EVP_PKEY_METHOD *EVP_PKEY_meth_new(int id, int flags) | |
195 | { | |
196 | EVP_PKEY_METHOD *pmeth; | |
197 | ||
198 | pmeth = OPENSSL_zalloc(sizeof(*pmeth)); | |
199 | if (!pmeth) | |
200 | return NULL; | |
201 | ||
202 | pmeth->pkey_id = id; | |
203 | pmeth->flags = flags | EVP_PKEY_FLAG_DYNAMIC; | |
204 | return pmeth; | |
205 | } | |
206 | ||
207 | void EVP_PKEY_meth_get0_info(int *ppkey_id, int *pflags, | |
208 | const EVP_PKEY_METHOD *meth) | |
209 | { | |
210 | if (ppkey_id) | |
211 | *ppkey_id = meth->pkey_id; | |
212 | if (pflags) | |
213 | *pflags = meth->flags; | |
214 | } | |
215 | ||
216 | void EVP_PKEY_meth_copy(EVP_PKEY_METHOD *dst, const EVP_PKEY_METHOD *src) | |
217 | { | |
218 | ||
219 | dst->init = src->init; | |
220 | dst->copy = src->copy; | |
221 | dst->cleanup = src->cleanup; | |
222 | ||
223 | dst->paramgen_init = src->paramgen_init; | |
224 | dst->paramgen = src->paramgen; | |
225 | ||
226 | dst->keygen_init = src->keygen_init; | |
227 | dst->keygen = src->keygen; | |
228 | ||
229 | dst->sign_init = src->sign_init; | |
230 | dst->sign = src->sign; | |
231 | ||
232 | dst->verify_init = src->verify_init; | |
233 | dst->verify = src->verify; | |
234 | ||
235 | dst->verify_recover_init = src->verify_recover_init; | |
236 | dst->verify_recover = src->verify_recover; | |
237 | ||
238 | dst->signctx_init = src->signctx_init; | |
239 | dst->signctx = src->signctx; | |
240 | ||
241 | dst->verifyctx_init = src->verifyctx_init; | |
242 | dst->verifyctx = src->verifyctx; | |
243 | ||
244 | dst->encrypt_init = src->encrypt_init; | |
245 | dst->encrypt = src->encrypt; | |
246 | ||
247 | dst->decrypt_init = src->decrypt_init; | |
248 | dst->decrypt = src->decrypt; | |
249 | ||
250 | dst->derive_init = src->derive_init; | |
251 | dst->derive = src->derive; | |
252 | ||
253 | dst->ctrl = src->ctrl; | |
254 | dst->ctrl_str = src->ctrl_str; | |
255 | } | |
256 | ||
257 | void EVP_PKEY_meth_free(EVP_PKEY_METHOD *pmeth) | |
258 | { | |
259 | if (pmeth && (pmeth->flags & EVP_PKEY_FLAG_DYNAMIC)) | |
260 | OPENSSL_free(pmeth); | |
261 | } | |
262 | ||
263 | EVP_PKEY_CTX *EVP_PKEY_CTX_new(EVP_PKEY *pkey, ENGINE *e) | |
264 | { | |
265 | return int_ctx_new(pkey, e, -1); | |
266 | } | |
267 | ||
268 | EVP_PKEY_CTX *EVP_PKEY_CTX_new_id(int id, ENGINE *e) | |
269 | { | |
270 | return int_ctx_new(NULL, e, id); | |
271 | } | |
272 | ||
273 | EVP_PKEY_CTX *EVP_PKEY_CTX_dup(EVP_PKEY_CTX *pctx) | |
274 | { | |
275 | EVP_PKEY_CTX *rctx; | |
276 | if (!pctx->pmeth || !pctx->pmeth->copy) | |
277 | return NULL; | |
278 | #ifndef OPENSSL_NO_ENGINE | |
279 | /* Make sure it's safe to copy a pkey context using an ENGINE */ | |
280 | if (pctx->engine && !ENGINE_init(pctx->engine)) { | |
281 | EVPerr(EVP_F_EVP_PKEY_CTX_DUP, ERR_R_ENGINE_LIB); | |
282 | return 0; | |
283 | } | |
284 | #endif | |
285 | rctx = OPENSSL_malloc(sizeof(*rctx)); | |
286 | if (!rctx) | |
287 | return NULL; | |
288 | ||
289 | rctx->pmeth = pctx->pmeth; | |
290 | #ifndef OPENSSL_NO_ENGINE | |
291 | rctx->engine = pctx->engine; | |
292 | #endif | |
293 | ||
294 | if (pctx->pkey) | |
295 | CRYPTO_add(&pctx->pkey->references, 1, CRYPTO_LOCK_EVP_PKEY); | |
296 | ||
297 | rctx->pkey = pctx->pkey; | |
298 | ||
299 | if (pctx->peerkey) | |
300 | CRYPTO_add(&pctx->peerkey->references, 1, CRYPTO_LOCK_EVP_PKEY); | |
301 | ||
302 | rctx->peerkey = pctx->peerkey; | |
303 | ||
304 | rctx->data = NULL; | |
305 | rctx->app_data = NULL; | |
306 | rctx->operation = pctx->operation; | |
307 | ||
308 | if (pctx->pmeth->copy(rctx, pctx) > 0) | |
309 | return rctx; | |
310 | ||
311 | EVP_PKEY_CTX_free(rctx); | |
312 | return NULL; | |
313 | ||
314 | } | |
315 | ||
316 | int EVP_PKEY_meth_add0(const EVP_PKEY_METHOD *pmeth) | |
317 | { | |
318 | if (app_pkey_methods == NULL) { | |
319 | app_pkey_methods = sk_EVP_PKEY_METHOD_new(pmeth_cmp); | |
320 | if (!app_pkey_methods) | |
321 | return 0; | |
322 | } | |
323 | if (!sk_EVP_PKEY_METHOD_push(app_pkey_methods, pmeth)) | |
324 | return 0; | |
325 | sk_EVP_PKEY_METHOD_sort(app_pkey_methods); | |
326 | return 1; | |
327 | } | |
328 | ||
329 | void EVP_PKEY_CTX_free(EVP_PKEY_CTX *ctx) | |
330 | { | |
331 | if (ctx == NULL) | |
332 | return; | |
333 | if (ctx->pmeth && ctx->pmeth->cleanup) | |
334 | ctx->pmeth->cleanup(ctx); | |
335 | EVP_PKEY_free(ctx->pkey); | |
336 | EVP_PKEY_free(ctx->peerkey); | |
337 | #ifndef OPENSSL_NO_ENGINE | |
338 | if (ctx->engine) | |
339 | /* | |
340 | * The EVP_PKEY_CTX we used belongs to an ENGINE, release the | |
341 | * functional reference we held for this reason. | |
342 | */ | |
343 | ENGINE_finish(ctx->engine); | |
344 | #endif | |
345 | OPENSSL_free(ctx); | |
346 | } | |
347 | ||
348 | int EVP_PKEY_CTX_ctrl(EVP_PKEY_CTX *ctx, int keytype, int optype, | |
349 | int cmd, int p1, void *p2) | |
350 | { | |
351 | int ret; | |
352 | if (!ctx || !ctx->pmeth || !ctx->pmeth->ctrl) { | |
353 | EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_COMMAND_NOT_SUPPORTED); | |
354 | return -2; | |
355 | } | |
356 | if ((keytype != -1) && (ctx->pmeth->pkey_id != keytype)) | |
357 | return -1; | |
358 | ||
359 | if (ctx->operation == EVP_PKEY_OP_UNDEFINED) { | |
360 | EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_NO_OPERATION_SET); | |
361 | return -1; | |
362 | } | |
363 | ||
364 | if ((optype != -1) && !(ctx->operation & optype)) { | |
365 | EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_INVALID_OPERATION); | |
366 | return -1; | |
367 | } | |
368 | ||
369 | ret = ctx->pmeth->ctrl(ctx, cmd, p1, p2); | |
370 | ||
371 | if (ret == -2) | |
372 | EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_COMMAND_NOT_SUPPORTED); | |
373 | ||
374 | return ret; | |
375 | ||
376 | } | |
377 | ||
378 | int EVP_PKEY_CTX_ctrl_str(EVP_PKEY_CTX *ctx, | |
379 | const char *name, const char *value) | |
380 | { | |
381 | if (!ctx || !ctx->pmeth || !ctx->pmeth->ctrl_str) { | |
382 | EVPerr(EVP_F_EVP_PKEY_CTX_CTRL_STR, EVP_R_COMMAND_NOT_SUPPORTED); | |
383 | return -2; | |
384 | } | |
385 | if (strcmp(name, "digest") == 0) { | |
386 | const EVP_MD *md; | |
387 | if (value == NULL || (md = EVP_get_digestbyname(value)) == NULL) { | |
388 | EVPerr(EVP_F_EVP_PKEY_CTX_CTRL_STR, EVP_R_INVALID_DIGEST); | |
389 | return 0; | |
390 | } | |
391 | return EVP_PKEY_CTX_set_signature_md(ctx, md); | |
392 | } | |
393 | return ctx->pmeth->ctrl_str(ctx, name, value); | |
394 | } | |
395 | ||
396 | int EVP_PKEY_CTX_get_operation(EVP_PKEY_CTX *ctx) | |
397 | { | |
398 | return ctx->operation; | |
399 | } | |
400 | ||
401 | void EVP_PKEY_CTX_set0_keygen_info(EVP_PKEY_CTX *ctx, int *dat, int datlen) | |
402 | { | |
403 | ctx->keygen_info = dat; | |
404 | ctx->keygen_info_count = datlen; | |
405 | } | |
406 | ||
407 | void EVP_PKEY_CTX_set_data(EVP_PKEY_CTX *ctx, void *data) | |
408 | { | |
409 | ctx->data = data; | |
410 | } | |
411 | ||
412 | void *EVP_PKEY_CTX_get_data(EVP_PKEY_CTX *ctx) | |
413 | { | |
414 | return ctx->data; | |
415 | } | |
416 | ||
417 | EVP_PKEY *EVP_PKEY_CTX_get0_pkey(EVP_PKEY_CTX *ctx) | |
418 | { | |
419 | return ctx->pkey; | |
420 | } | |
421 | ||
422 | EVP_PKEY *EVP_PKEY_CTX_get0_peerkey(EVP_PKEY_CTX *ctx) | |
423 | { | |
424 | return ctx->peerkey; | |
425 | } | |
426 | ||
427 | void EVP_PKEY_CTX_set_app_data(EVP_PKEY_CTX *ctx, void *data) | |
428 | { | |
429 | ctx->app_data = data; | |
430 | } | |
431 | ||
432 | void *EVP_PKEY_CTX_get_app_data(EVP_PKEY_CTX *ctx) | |
433 | { | |
434 | return ctx->app_data; | |
435 | } | |
436 | ||
437 | void EVP_PKEY_meth_set_init(EVP_PKEY_METHOD *pmeth, | |
438 | int (*init) (EVP_PKEY_CTX *ctx)) | |
439 | { | |
440 | pmeth->init = init; | |
441 | } | |
442 | ||
443 | void EVP_PKEY_meth_set_copy(EVP_PKEY_METHOD *pmeth, | |
444 | int (*copy) (EVP_PKEY_CTX *dst, | |
445 | EVP_PKEY_CTX *src)) | |
446 | { | |
447 | pmeth->copy = copy; | |
448 | } | |
449 | ||
450 | void EVP_PKEY_meth_set_cleanup(EVP_PKEY_METHOD *pmeth, | |
451 | void (*cleanup) (EVP_PKEY_CTX *ctx)) | |
452 | { | |
453 | pmeth->cleanup = cleanup; | |
454 | } | |
455 | ||
456 | void EVP_PKEY_meth_set_paramgen(EVP_PKEY_METHOD *pmeth, | |
457 | int (*paramgen_init) (EVP_PKEY_CTX *ctx), | |
458 | int (*paramgen) (EVP_PKEY_CTX *ctx, | |
459 | EVP_PKEY *pkey)) | |
460 | { | |
461 | pmeth->paramgen_init = paramgen_init; | |
462 | pmeth->paramgen = paramgen; | |
463 | } | |
464 | ||
465 | void EVP_PKEY_meth_set_keygen(EVP_PKEY_METHOD *pmeth, | |
466 | int (*keygen_init) (EVP_PKEY_CTX *ctx), | |
467 | int (*keygen) (EVP_PKEY_CTX *ctx, | |
468 | EVP_PKEY *pkey)) | |
469 | { | |
470 | pmeth->keygen_init = keygen_init; | |
471 | pmeth->keygen = keygen; | |
472 | } | |
473 | ||
474 | void EVP_PKEY_meth_set_sign(EVP_PKEY_METHOD *pmeth, | |
475 | int (*sign_init) (EVP_PKEY_CTX *ctx), | |
476 | int (*sign) (EVP_PKEY_CTX *ctx, | |
477 | unsigned char *sig, size_t *siglen, | |
478 | const unsigned char *tbs, | |
479 | size_t tbslen)) | |
480 | { | |
481 | pmeth->sign_init = sign_init; | |
482 | pmeth->sign = sign; | |
483 | } | |
484 | ||
485 | void EVP_PKEY_meth_set_verify(EVP_PKEY_METHOD *pmeth, | |
486 | int (*verify_init) (EVP_PKEY_CTX *ctx), | |
487 | int (*verify) (EVP_PKEY_CTX *ctx, | |
488 | const unsigned char *sig, | |
489 | size_t siglen, | |
490 | const unsigned char *tbs, | |
491 | size_t tbslen)) | |
492 | { | |
493 | pmeth->verify_init = verify_init; | |
494 | pmeth->verify = verify; | |
495 | } | |
496 | ||
497 | void EVP_PKEY_meth_set_verify_recover(EVP_PKEY_METHOD *pmeth, | |
498 | int (*verify_recover_init) (EVP_PKEY_CTX | |
499 | *ctx), | |
500 | int (*verify_recover) (EVP_PKEY_CTX | |
501 | *ctx, | |
502 | unsigned char | |
503 | *sig, | |
504 | size_t *siglen, | |
505 | const unsigned | |
506 | char *tbs, | |
507 | size_t tbslen)) | |
508 | { | |
509 | pmeth->verify_recover_init = verify_recover_init; | |
510 | pmeth->verify_recover = verify_recover; | |
511 | } | |
512 | ||
513 | void EVP_PKEY_meth_set_signctx(EVP_PKEY_METHOD *pmeth, | |
514 | int (*signctx_init) (EVP_PKEY_CTX *ctx, | |
515 | EVP_MD_CTX *mctx), | |
516 | int (*signctx) (EVP_PKEY_CTX *ctx, | |
517 | unsigned char *sig, | |
518 | size_t *siglen, | |
519 | EVP_MD_CTX *mctx)) | |
520 | { | |
521 | pmeth->signctx_init = signctx_init; | |
522 | pmeth->signctx = signctx; | |
523 | } | |
524 | ||
525 | void EVP_PKEY_meth_set_verifyctx(EVP_PKEY_METHOD *pmeth, | |
526 | int (*verifyctx_init) (EVP_PKEY_CTX *ctx, | |
527 | EVP_MD_CTX *mctx), | |
528 | int (*verifyctx) (EVP_PKEY_CTX *ctx, | |
529 | const unsigned char *sig, | |
530 | int siglen, | |
531 | EVP_MD_CTX *mctx)) | |
532 | { | |
533 | pmeth->verifyctx_init = verifyctx_init; | |
534 | pmeth->verifyctx = verifyctx; | |
535 | } | |
536 | ||
537 | void EVP_PKEY_meth_set_encrypt(EVP_PKEY_METHOD *pmeth, | |
538 | int (*encrypt_init) (EVP_PKEY_CTX *ctx), | |
539 | int (*encryptfn) (EVP_PKEY_CTX *ctx, | |
540 | unsigned char *out, | |
541 | size_t *outlen, | |
542 | const unsigned char *in, | |
543 | size_t inlen)) | |
544 | { | |
545 | pmeth->encrypt_init = encrypt_init; | |
546 | pmeth->encrypt = encryptfn; | |
547 | } | |
548 | ||
549 | void EVP_PKEY_meth_set_decrypt(EVP_PKEY_METHOD *pmeth, | |
550 | int (*decrypt_init) (EVP_PKEY_CTX *ctx), | |
551 | int (*decrypt) (EVP_PKEY_CTX *ctx, | |
552 | unsigned char *out, | |
553 | size_t *outlen, | |
554 | const unsigned char *in, | |
555 | size_t inlen)) | |
556 | { | |
557 | pmeth->decrypt_init = decrypt_init; | |
558 | pmeth->decrypt = decrypt; | |
559 | } | |
560 | ||
561 | void EVP_PKEY_meth_set_derive(EVP_PKEY_METHOD *pmeth, | |
562 | int (*derive_init) (EVP_PKEY_CTX *ctx), | |
563 | int (*derive) (EVP_PKEY_CTX *ctx, | |
564 | unsigned char *key, | |
565 | size_t *keylen)) | |
566 | { | |
567 | pmeth->derive_init = derive_init; | |
568 | pmeth->derive = derive; | |
569 | } | |
570 | ||
571 | void EVP_PKEY_meth_set_ctrl(EVP_PKEY_METHOD *pmeth, | |
572 | int (*ctrl) (EVP_PKEY_CTX *ctx, int type, int p1, | |
573 | void *p2), | |
574 | int (*ctrl_str) (EVP_PKEY_CTX *ctx, | |
575 | const char *type, | |
576 | const char *value)) | |
577 | { | |
578 | pmeth->ctrl = ctrl; | |
579 | pmeth->ctrl_str = ctrl_str; | |
580 | } |