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1 | /* pmeth_lib.c */ | |
2 | /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL | |
3 | * project 2006. | |
4 | */ | |
5 | /* ==================================================================== | |
6 | * Copyright (c) 2006 The OpenSSL Project. All rights reserved. | |
7 | * | |
8 | * Redistribution and use in source and binary forms, with or without | |
9 | * modification, are permitted provided that the following conditions | |
10 | * are met: | |
11 | * | |
12 | * 1. Redistributions of source code must retain the above copyright | |
13 | * notice, this list of conditions and the following disclaimer. | |
14 | * | |
15 | * 2. Redistributions in binary form must reproduce the above copyright | |
16 | * notice, this list of conditions and the following disclaimer in | |
17 | * the documentation and/or other materials provided with the | |
18 | * distribution. | |
19 | * | |
20 | * 3. All advertising materials mentioning features or use of this | |
21 | * software must display the following acknowledgment: | |
22 | * "This product includes software developed by the OpenSSL Project | |
23 | * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" | |
24 | * | |
25 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | |
26 | * endorse or promote products derived from this software without | |
27 | * prior written permission. For written permission, please contact | |
28 | * licensing@OpenSSL.org. | |
29 | * | |
30 | * 5. Products derived from this software may not be called "OpenSSL" | |
31 | * nor may "OpenSSL" appear in their names without prior written | |
32 | * permission of the OpenSSL Project. | |
33 | * | |
34 | * 6. Redistributions of any form whatsoever must retain the following | |
35 | * acknowledgment: | |
36 | * "This product includes software developed by the OpenSSL Project | |
37 | * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" | |
38 | * | |
39 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | |
40 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
41 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
42 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | |
43 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
44 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
45 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
46 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
47 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
48 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
49 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
50 | * OF THE POSSIBILITY OF SUCH DAMAGE. | |
51 | * ==================================================================== | |
52 | * | |
53 | * This product includes cryptographic software written by Eric Young | |
54 | * (eay@cryptsoft.com). This product includes software written by Tim | |
55 | * Hudson (tjh@cryptsoft.com). | |
56 | * | |
57 | */ | |
58 | ||
59 | #include <stdio.h> | |
60 | #include <stdlib.h> | |
61 | #include "cryptlib.h" | |
62 | #include <openssl/objects.h> | |
63 | #include <openssl/evp.h> | |
64 | #ifndef OPENSSL_NO_ENGINE | |
65 | #include <openssl/engine.h> | |
66 | #endif | |
67 | #include "asn1_locl.h" | |
68 | #include "evp_locl.h" | |
69 | ||
70 | typedef int sk_cmp_fn_type(const char * const *a, const char * const *b); | |
71 | ||
72 | DECLARE_STACK_OF(EVP_PKEY_METHOD) | |
73 | STACK_OF(EVP_PKEY_METHOD) *app_pkey_methods = NULL; | |
74 | ||
75 | extern const EVP_PKEY_METHOD rsa_pkey_meth, dh_pkey_meth, dsa_pkey_meth; | |
76 | extern const EVP_PKEY_METHOD ec_pkey_meth, hmac_pkey_meth, cmac_pkey_meth; | |
77 | extern const EVP_PKEY_METHOD dhx_pkey_meth; | |
78 | ||
79 | static const EVP_PKEY_METHOD *standard_methods[] = | |
80 | { | |
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 | { | |
119 | int idx; | |
120 | idx = sk_EVP_PKEY_METHOD_find(app_pkey_methods, &tmp); | |
121 | if (idx >= 0) | |
122 | return sk_EVP_PKEY_METHOD_value(app_pkey_methods, idx); | |
123 | } | |
124 | ret = OBJ_bsearch_pmeth(&t, standard_methods, | |
125 | sizeof(standard_methods)/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 | { | |
137 | if (!pkey || !pkey->ameth) | |
138 | return NULL; | |
139 | id = pkey->ameth->pkey_id; | |
140 | } | |
141 | #ifndef OPENSSL_NO_ENGINE | |
142 | if (pkey && pkey->engine) | |
143 | e = pkey->engine; | |
144 | /* Try to find an ENGINE which implements this method */ | |
145 | if (e) | |
146 | { | |
147 | if (!ENGINE_init(e)) | |
148 | { | |
149 | EVPerr(EVP_F_INT_CTX_NEW,ERR_R_ENGINE_LIB); | |
150 | return NULL; | |
151 | } | |
152 | } | |
153 | else | |
154 | e = ENGINE_get_pkey_meth_engine(id); | |
155 | ||
156 | /* If an ENGINE handled this method look it up. Othewise | |
157 | * use internal tables. | |
158 | */ | |
159 | ||
160 | if (e) | |
161 | pmeth = ENGINE_get_pkey_meth(e, id); | |
162 | else | |
163 | #endif | |
164 | pmeth = EVP_PKEY_meth_find(id); | |
165 | ||
166 | if (pmeth == NULL) | |
167 | { | |
168 | EVPerr(EVP_F_INT_CTX_NEW,EVP_R_UNSUPPORTED_ALGORITHM); | |
169 | return NULL; | |
170 | } | |
171 | ||
172 | ret = OPENSSL_malloc(sizeof(EVP_PKEY_CTX)); | |
173 | if (!ret) | |
174 | { | |
175 | #ifndef OPENSSL_NO_ENGINE | |
176 | if (e) | |
177 | ENGINE_finish(e); | |
178 | #endif | |
179 | EVPerr(EVP_F_INT_CTX_NEW,ERR_R_MALLOC_FAILURE); | |
180 | return NULL; | |
181 | } | |
182 | ret->engine = e; | |
183 | ret->pmeth = pmeth; | |
184 | ret->operation = EVP_PKEY_OP_UNDEFINED; | |
185 | ret->pkey = pkey; | |
186 | ret->peerkey = NULL; | |
187 | ret->pkey_gencb = 0; | |
188 | if (pkey) | |
189 | CRYPTO_add(&pkey->references,1,CRYPTO_LOCK_EVP_PKEY); | |
190 | ret->data = NULL; | |
191 | ||
192 | if (pmeth->init) | |
193 | { | |
194 | if (pmeth->init(ret) <= 0) | |
195 | { | |
196 | EVP_PKEY_CTX_free(ret); | |
197 | return NULL; | |
198 | } | |
199 | } | |
200 | ||
201 | return ret; | |
202 | } | |
203 | ||
204 | EVP_PKEY_METHOD* EVP_PKEY_meth_new(int id, int flags) | |
205 | { | |
206 | EVP_PKEY_METHOD *pmeth; | |
207 | pmeth = OPENSSL_malloc(sizeof(EVP_PKEY_METHOD)); | |
208 | if (!pmeth) | |
209 | return NULL; | |
210 | ||
211 | memset(pmeth, 0, sizeof(EVP_PKEY_METHOD)); | |
212 | ||
213 | pmeth->pkey_id = id; | |
214 | pmeth->flags = flags | EVP_PKEY_FLAG_DYNAMIC; | |
215 | ||
216 | pmeth->init = 0; | |
217 | pmeth->copy = 0; | |
218 | pmeth->cleanup = 0; | |
219 | pmeth->paramgen_init = 0; | |
220 | pmeth->paramgen = 0; | |
221 | pmeth->keygen_init = 0; | |
222 | pmeth->keygen = 0; | |
223 | pmeth->sign_init = 0; | |
224 | pmeth->sign = 0; | |
225 | pmeth->verify_init = 0; | |
226 | pmeth->verify = 0; | |
227 | pmeth->verify_recover_init = 0; | |
228 | pmeth->verify_recover = 0; | |
229 | pmeth->signctx_init = 0; | |
230 | pmeth->signctx = 0; | |
231 | pmeth->verifyctx_init = 0; | |
232 | pmeth->verifyctx = 0; | |
233 | pmeth->encrypt_init = 0; | |
234 | pmeth->encrypt = 0; | |
235 | pmeth->decrypt_init = 0; | |
236 | pmeth->decrypt = 0; | |
237 | pmeth->derive_init = 0; | |
238 | pmeth->derive = 0; | |
239 | pmeth->ctrl = 0; | |
240 | pmeth->ctrl_str = 0; | |
241 | ||
242 | return pmeth; | |
243 | } | |
244 | ||
245 | void EVP_PKEY_meth_get0_info(int *ppkey_id, int *pflags, | |
246 | const EVP_PKEY_METHOD *meth) | |
247 | { | |
248 | if (ppkey_id) | |
249 | *ppkey_id = meth->pkey_id; | |
250 | if (pflags) | |
251 | *pflags = meth->flags; | |
252 | } | |
253 | ||
254 | void EVP_PKEY_meth_copy(EVP_PKEY_METHOD *dst, const EVP_PKEY_METHOD *src) | |
255 | { | |
256 | ||
257 | dst->init = src->init; | |
258 | dst->copy = src->copy; | |
259 | dst->cleanup = src->cleanup; | |
260 | ||
261 | dst->paramgen_init = src->paramgen_init; | |
262 | dst->paramgen = src->paramgen; | |
263 | ||
264 | dst->keygen_init = src->keygen_init; | |
265 | dst->keygen = src->keygen; | |
266 | ||
267 | dst->sign_init = src->sign_init; | |
268 | dst->sign = src->sign; | |
269 | ||
270 | dst->verify_init = src->verify_init; | |
271 | dst->verify = src->verify; | |
272 | ||
273 | dst->verify_recover_init = src->verify_recover_init; | |
274 | dst->verify_recover = src->verify_recover; | |
275 | ||
276 | dst->signctx_init = src->signctx_init; | |
277 | dst->signctx = src->signctx; | |
278 | ||
279 | dst->verifyctx_init = src->verifyctx_init; | |
280 | dst->verifyctx = src->verifyctx; | |
281 | ||
282 | dst->encrypt_init = src->encrypt_init; | |
283 | dst->encrypt = src->encrypt; | |
284 | ||
285 | dst->decrypt_init = src->decrypt_init; | |
286 | dst->decrypt = src->decrypt; | |
287 | ||
288 | dst->derive_init = src->derive_init; | |
289 | dst->derive = src->derive; | |
290 | ||
291 | dst->ctrl = src->ctrl; | |
292 | dst->ctrl_str = src->ctrl_str; | |
293 | } | |
294 | ||
295 | void EVP_PKEY_meth_free(EVP_PKEY_METHOD *pmeth) | |
296 | { | |
297 | if (pmeth && (pmeth->flags & EVP_PKEY_FLAG_DYNAMIC)) | |
298 | OPENSSL_free(pmeth); | |
299 | } | |
300 | ||
301 | EVP_PKEY_CTX *EVP_PKEY_CTX_new(EVP_PKEY *pkey, ENGINE *e) | |
302 | { | |
303 | return int_ctx_new(pkey, e, -1); | |
304 | } | |
305 | ||
306 | EVP_PKEY_CTX *EVP_PKEY_CTX_new_id(int id, ENGINE *e) | |
307 | { | |
308 | return int_ctx_new(NULL, e, id); | |
309 | } | |
310 | ||
311 | EVP_PKEY_CTX *EVP_PKEY_CTX_dup(EVP_PKEY_CTX *pctx) | |
312 | { | |
313 | EVP_PKEY_CTX *rctx; | |
314 | if (!pctx->pmeth || !pctx->pmeth->copy) | |
315 | return NULL; | |
316 | #ifndef OPENSSL_NO_ENGINE | |
317 | /* Make sure it's safe to copy a pkey context using an ENGINE */ | |
318 | if (pctx->engine && !ENGINE_init(pctx->engine)) | |
319 | { | |
320 | EVPerr(EVP_F_EVP_PKEY_CTX_DUP,ERR_R_ENGINE_LIB); | |
321 | return 0; | |
322 | } | |
323 | #endif | |
324 | rctx = OPENSSL_malloc(sizeof(EVP_PKEY_CTX)); | |
325 | if (!rctx) | |
326 | return NULL; | |
327 | ||
328 | rctx->pmeth = pctx->pmeth; | |
329 | #ifndef OPENSSL_NO_ENGINE | |
330 | rctx->engine = pctx->engine; | |
331 | #endif | |
332 | ||
333 | if (pctx->pkey) | |
334 | CRYPTO_add(&pctx->pkey->references,1,CRYPTO_LOCK_EVP_PKEY); | |
335 | ||
336 | rctx->pkey = pctx->pkey; | |
337 | ||
338 | if (pctx->peerkey) | |
339 | CRYPTO_add(&pctx->peerkey->references,1,CRYPTO_LOCK_EVP_PKEY); | |
340 | ||
341 | rctx->peerkey = pctx->peerkey; | |
342 | ||
343 | rctx->data = NULL; | |
344 | rctx->app_data = NULL; | |
345 | rctx->operation = pctx->operation; | |
346 | ||
347 | if (pctx->pmeth->copy(rctx, pctx) > 0) | |
348 | return rctx; | |
349 | ||
350 | EVP_PKEY_CTX_free(rctx); | |
351 | return NULL; | |
352 | ||
353 | } | |
354 | ||
355 | int EVP_PKEY_meth_add0(const EVP_PKEY_METHOD *pmeth) | |
356 | { | |
357 | if (app_pkey_methods == NULL) | |
358 | { | |
359 | app_pkey_methods = sk_EVP_PKEY_METHOD_new(pmeth_cmp); | |
360 | if (!app_pkey_methods) | |
361 | return 0; | |
362 | } | |
363 | if (!sk_EVP_PKEY_METHOD_push(app_pkey_methods, pmeth)) | |
364 | return 0; | |
365 | sk_EVP_PKEY_METHOD_sort(app_pkey_methods); | |
366 | return 1; | |
367 | } | |
368 | ||
369 | void EVP_PKEY_CTX_free(EVP_PKEY_CTX *ctx) | |
370 | { | |
371 | if (ctx == NULL) | |
372 | return; | |
373 | if (ctx->pmeth && ctx->pmeth->cleanup) | |
374 | ctx->pmeth->cleanup(ctx); | |
375 | if (ctx->pkey) | |
376 | EVP_PKEY_free(ctx->pkey); | |
377 | if (ctx->peerkey) | |
378 | EVP_PKEY_free(ctx->peerkey); | |
379 | #ifndef OPENSSL_NO_ENGINE | |
380 | if(ctx->engine) | |
381 | /* The EVP_PKEY_CTX we used belongs to an ENGINE, release the | |
382 | * functional reference we held for this reason. */ | |
383 | ENGINE_finish(ctx->engine); | |
384 | #endif | |
385 | OPENSSL_free(ctx); | |
386 | } | |
387 | ||
388 | int EVP_PKEY_CTX_ctrl(EVP_PKEY_CTX *ctx, int keytype, int optype, | |
389 | int cmd, int p1, void *p2) | |
390 | { | |
391 | int ret; | |
392 | if (!ctx || !ctx->pmeth || !ctx->pmeth->ctrl) | |
393 | { | |
394 | EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_COMMAND_NOT_SUPPORTED); | |
395 | return -2; | |
396 | } | |
397 | if ((keytype != -1) && (ctx->pmeth->pkey_id != keytype)) | |
398 | return -1; | |
399 | ||
400 | if (ctx->operation == EVP_PKEY_OP_UNDEFINED) | |
401 | { | |
402 | EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_NO_OPERATION_SET); | |
403 | return -1; | |
404 | } | |
405 | ||
406 | if ((optype != -1) && !(ctx->operation & optype)) | |
407 | { | |
408 | EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_INVALID_OPERATION); | |
409 | return -1; | |
410 | } | |
411 | ||
412 | ret = ctx->pmeth->ctrl(ctx, cmd, p1, p2); | |
413 | ||
414 | if (ret == -2) | |
415 | EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_COMMAND_NOT_SUPPORTED); | |
416 | ||
417 | return ret; | |
418 | ||
419 | } | |
420 | ||
421 | int EVP_PKEY_CTX_ctrl_str(EVP_PKEY_CTX *ctx, | |
422 | const char *name, const char *value) | |
423 | { | |
424 | if (!ctx || !ctx->pmeth || !ctx->pmeth->ctrl_str) | |
425 | { | |
426 | EVPerr(EVP_F_EVP_PKEY_CTX_CTRL_STR, | |
427 | EVP_R_COMMAND_NOT_SUPPORTED); | |
428 | return -2; | |
429 | } | |
430 | if (!strcmp(name, "digest")) | |
431 | { | |
432 | const EVP_MD *md; | |
433 | if (!value || !(md = EVP_get_digestbyname(value))) | |
434 | { | |
435 | EVPerr(EVP_F_EVP_PKEY_CTX_CTRL_STR, | |
436 | EVP_R_INVALID_DIGEST); | |
437 | return 0; | |
438 | } | |
439 | return EVP_PKEY_CTX_set_signature_md(ctx, md); | |
440 | } | |
441 | return ctx->pmeth->ctrl_str(ctx, name, value); | |
442 | } | |
443 | ||
444 | int EVP_PKEY_CTX_get_operation(EVP_PKEY_CTX *ctx) | |
445 | { | |
446 | return ctx->operation; | |
447 | } | |
448 | ||
449 | void EVP_PKEY_CTX_set0_keygen_info(EVP_PKEY_CTX *ctx, int *dat, int datlen) | |
450 | { | |
451 | ctx->keygen_info = dat; | |
452 | ctx->keygen_info_count = datlen; | |
453 | } | |
454 | ||
455 | void EVP_PKEY_CTX_set_data(EVP_PKEY_CTX *ctx, void *data) | |
456 | { | |
457 | ctx->data = data; | |
458 | } | |
459 | ||
460 | void *EVP_PKEY_CTX_get_data(EVP_PKEY_CTX *ctx) | |
461 | { | |
462 | return ctx->data; | |
463 | } | |
464 | ||
465 | EVP_PKEY *EVP_PKEY_CTX_get0_pkey(EVP_PKEY_CTX *ctx) | |
466 | { | |
467 | return ctx->pkey; | |
468 | } | |
469 | ||
470 | EVP_PKEY *EVP_PKEY_CTX_get0_peerkey(EVP_PKEY_CTX *ctx) | |
471 | { | |
472 | return ctx->peerkey; | |
473 | } | |
474 | ||
475 | void EVP_PKEY_CTX_set_app_data(EVP_PKEY_CTX *ctx, void *data) | |
476 | { | |
477 | ctx->app_data = data; | |
478 | } | |
479 | ||
480 | void *EVP_PKEY_CTX_get_app_data(EVP_PKEY_CTX *ctx) | |
481 | { | |
482 | return ctx->app_data; | |
483 | } | |
484 | ||
485 | void EVP_PKEY_meth_set_init(EVP_PKEY_METHOD *pmeth, | |
486 | int (*init)(EVP_PKEY_CTX *ctx)) | |
487 | { | |
488 | pmeth->init = init; | |
489 | } | |
490 | ||
491 | void EVP_PKEY_meth_set_copy(EVP_PKEY_METHOD *pmeth, | |
492 | int (*copy)(EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src)) | |
493 | { | |
494 | pmeth->copy = copy; | |
495 | } | |
496 | ||
497 | void EVP_PKEY_meth_set_cleanup(EVP_PKEY_METHOD *pmeth, | |
498 | void (*cleanup)(EVP_PKEY_CTX *ctx)) | |
499 | { | |
500 | pmeth->cleanup = cleanup; | |
501 | } | |
502 | ||
503 | void EVP_PKEY_meth_set_paramgen(EVP_PKEY_METHOD *pmeth, | |
504 | int (*paramgen_init)(EVP_PKEY_CTX *ctx), | |
505 | int (*paramgen)(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)) | |
506 | { | |
507 | pmeth->paramgen_init = paramgen_init; | |
508 | pmeth->paramgen = paramgen; | |
509 | } | |
510 | ||
511 | void EVP_PKEY_meth_set_keygen(EVP_PKEY_METHOD *pmeth, | |
512 | int (*keygen_init)(EVP_PKEY_CTX *ctx), | |
513 | int (*keygen)(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)) | |
514 | { | |
515 | pmeth->keygen_init = keygen_init; | |
516 | pmeth->keygen = keygen; | |
517 | } | |
518 | ||
519 | void EVP_PKEY_meth_set_sign(EVP_PKEY_METHOD *pmeth, | |
520 | int (*sign_init)(EVP_PKEY_CTX *ctx), | |
521 | int (*sign)(EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen, | |
522 | const unsigned char *tbs, size_t tbslen)) | |
523 | { | |
524 | pmeth->sign_init = sign_init; | |
525 | pmeth->sign = sign; | |
526 | } | |
527 | ||
528 | void EVP_PKEY_meth_set_verify(EVP_PKEY_METHOD *pmeth, | |
529 | int (*verify_init)(EVP_PKEY_CTX *ctx), | |
530 | int (*verify)(EVP_PKEY_CTX *ctx, const unsigned char *sig, size_t siglen, | |
531 | const unsigned char *tbs, size_t tbslen)) | |
532 | { | |
533 | pmeth->verify_init = verify_init; | |
534 | pmeth->verify = verify; | |
535 | } | |
536 | ||
537 | void EVP_PKEY_meth_set_verify_recover(EVP_PKEY_METHOD *pmeth, | |
538 | int (*verify_recover_init)(EVP_PKEY_CTX *ctx), | |
539 | int (*verify_recover)(EVP_PKEY_CTX *ctx, | |
540 | unsigned char *sig, size_t *siglen, | |
541 | const unsigned char *tbs, size_t tbslen)) | |
542 | { | |
543 | pmeth->verify_recover_init = verify_recover_init; | |
544 | pmeth->verify_recover = verify_recover; | |
545 | } | |
546 | ||
547 | void EVP_PKEY_meth_set_signctx(EVP_PKEY_METHOD *pmeth, | |
548 | int (*signctx_init)(EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx), | |
549 | int (*signctx)(EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen, | |
550 | EVP_MD_CTX *mctx)) | |
551 | { | |
552 | pmeth->signctx_init = signctx_init; | |
553 | pmeth->signctx = signctx; | |
554 | } | |
555 | ||
556 | void EVP_PKEY_meth_set_verifyctx(EVP_PKEY_METHOD *pmeth, | |
557 | int (*verifyctx_init)(EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx), | |
558 | int (*verifyctx)(EVP_PKEY_CTX *ctx, const unsigned char *sig,int siglen, | |
559 | EVP_MD_CTX *mctx)) | |
560 | { | |
561 | pmeth->verifyctx_init = verifyctx_init; | |
562 | pmeth->verifyctx = verifyctx; | |
563 | } | |
564 | ||
565 | void EVP_PKEY_meth_set_encrypt(EVP_PKEY_METHOD *pmeth, | |
566 | int (*encrypt_init)(EVP_PKEY_CTX *ctx), | |
567 | int (*encryptfn)(EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen, | |
568 | const unsigned char *in, size_t inlen)) | |
569 | { | |
570 | pmeth->encrypt_init = encrypt_init; | |
571 | pmeth->encrypt = encryptfn; | |
572 | } | |
573 | ||
574 | void EVP_PKEY_meth_set_decrypt(EVP_PKEY_METHOD *pmeth, | |
575 | int (*decrypt_init)(EVP_PKEY_CTX *ctx), | |
576 | int (*decrypt)(EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen, | |
577 | const unsigned char *in, size_t inlen)) | |
578 | { | |
579 | pmeth->decrypt_init = decrypt_init; | |
580 | pmeth->decrypt = decrypt; | |
581 | } | |
582 | ||
583 | void EVP_PKEY_meth_set_derive(EVP_PKEY_METHOD *pmeth, | |
584 | int (*derive_init)(EVP_PKEY_CTX *ctx), | |
585 | int (*derive)(EVP_PKEY_CTX *ctx, unsigned char *key, size_t *keylen)) | |
586 | { | |
587 | pmeth->derive_init = derive_init; | |
588 | pmeth->derive = derive; | |
589 | } | |
590 | ||
591 | void EVP_PKEY_meth_set_ctrl(EVP_PKEY_METHOD *pmeth, | |
592 | int (*ctrl)(EVP_PKEY_CTX *ctx, int type, int p1, void *p2), | |
593 | int (*ctrl_str)(EVP_PKEY_CTX *ctx, const char *type, const char *value)) | |
594 | { | |
595 | pmeth->ctrl = ctrl; | |
596 | pmeth->ctrl_str = ctrl_str; | |
597 | } |