1 /* $OpenBSD: pmeth_lib.c,v 1.16 2019/11/01 15:08:57 jsing Exp $ */
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 <string.h>
62
63 #include <openssl/opensslconf.h>
64
65 #include <openssl/err.h>
66 #include <openssl/evp.h>
67 #include <openssl/objects.h>
68
69 #ifndef OPENSSL_NO_ENGINE
70 #include <openssl/engine.h>
71 #endif
72
73 #include "asn1_locl.h"
74 #include "evp_locl.h"
75
76 typedef int sk_cmp_fn_type(const char * const *a, const char * const *b);
77
78 DECLARE_STACK_OF(EVP_PKEY_METHOD)
79 STACK_OF(EVP_PKEY_METHOD) *app_pkey_methods = NULL;
80
81 extern const EVP_PKEY_METHOD rsa_pkey_meth, rsa_pss_pkey_meth;
82 extern const EVP_PKEY_METHOD dh_pkey_meth, dsa_pkey_meth;
83 extern const EVP_PKEY_METHOD ec_pkey_meth, hmac_pkey_meth, cmac_pkey_meth;
84 extern const EVP_PKEY_METHOD gostimit_pkey_meth, gostr01_pkey_meth;
85
86 static const EVP_PKEY_METHOD *standard_methods[] = {
87 #ifndef OPENSSL_NO_RSA
88 &rsa_pkey_meth,
89 #endif
90 #ifndef OPENSSL_NO_DH
91 &dh_pkey_meth,
92 #endif
93 #ifndef OPENSSL_NO_DSA
94 &dsa_pkey_meth,
95 #endif
96 #ifndef OPENSSL_NO_EC
97 &ec_pkey_meth,
98 #endif
99 #ifndef OPENSSL_NO_GOST
100 &gostr01_pkey_meth,
101 &gostimit_pkey_meth,
102 #endif
103 &hmac_pkey_meth,
104 &cmac_pkey_meth,
105 #ifndef OPENSSL_NO_RSA
106 &rsa_pss_pkey_meth,
107 #endif
108 };
109
110 static int pmeth_cmp_BSEARCH_CMP_FN(const void *, const void *);
111 static int pmeth_cmp(const EVP_PKEY_METHOD * const *, const EVP_PKEY_METHOD * const *);
112 static const EVP_PKEY_METHOD * *OBJ_bsearch_pmeth(const EVP_PKEY_METHOD * *key, const EVP_PKEY_METHOD * const *base, int num);
113
114 static int
pmeth_cmp(const EVP_PKEY_METHOD * const * a,const EVP_PKEY_METHOD * const * b)115 pmeth_cmp(const EVP_PKEY_METHOD * const *a, const EVP_PKEY_METHOD * const *b)
116 {
117 return ((*a)->pkey_id - (*b)->pkey_id);
118 }
119
120
121 static int
pmeth_cmp_BSEARCH_CMP_FN(const void * a_,const void * b_)122 pmeth_cmp_BSEARCH_CMP_FN(const void *a_, const void *b_)
123 {
124 const EVP_PKEY_METHOD * const *a = a_;
125 const EVP_PKEY_METHOD * const *b = b_;
126 return pmeth_cmp(a, b);
127 }
128
129 static const EVP_PKEY_METHOD * *
OBJ_bsearch_pmeth(const EVP_PKEY_METHOD ** key,const EVP_PKEY_METHOD * const * base,int num)130 OBJ_bsearch_pmeth(const EVP_PKEY_METHOD * *key, const EVP_PKEY_METHOD * const *base, int num)
131 {
132 return (const EVP_PKEY_METHOD * *)OBJ_bsearch_(key, base, num, sizeof(const EVP_PKEY_METHOD *),
133 pmeth_cmp_BSEARCH_CMP_FN);
134 }
135
136 const EVP_PKEY_METHOD *
EVP_PKEY_meth_find(int type)137 EVP_PKEY_meth_find(int type)
138 {
139 EVP_PKEY_METHOD tmp;
140 const EVP_PKEY_METHOD *t = &tmp, **ret;
141
142 tmp.pkey_id = type;
143 if (app_pkey_methods) {
144 int idx;
145 idx = sk_EVP_PKEY_METHOD_find(app_pkey_methods, &tmp);
146 if (idx >= 0)
147 return sk_EVP_PKEY_METHOD_value(app_pkey_methods, idx);
148 }
149 ret = OBJ_bsearch_pmeth(&t, standard_methods,
150 sizeof(standard_methods)/sizeof(EVP_PKEY_METHOD *));
151 if (!ret || !*ret)
152 return NULL;
153 return *ret;
154 }
155
156 static EVP_PKEY_CTX *
int_ctx_new(EVP_PKEY * pkey,ENGINE * e,int id)157 int_ctx_new(EVP_PKEY *pkey, ENGINE *e, int id)
158 {
159 EVP_PKEY_CTX *ret;
160 const EVP_PKEY_METHOD *pmeth;
161
162 if (id == -1) {
163 if (!pkey || !pkey->ameth)
164 return NULL;
165 id = pkey->ameth->pkey_id;
166 }
167 #ifndef OPENSSL_NO_ENGINE
168 if (pkey && pkey->engine)
169 e = pkey->engine;
170 /* Try to find an ENGINE which implements this method */
171 if (e) {
172 if (!ENGINE_init(e)) {
173 EVPerror(ERR_R_ENGINE_LIB);
174 return NULL;
175 }
176 } else
177 e = ENGINE_get_pkey_meth_engine(id);
178
179 /* If an ENGINE handled this method look it up. Othewise
180 * use internal tables.
181 */
182
183 if (e)
184 pmeth = ENGINE_get_pkey_meth(e, id);
185 else
186 #endif
187 pmeth = EVP_PKEY_meth_find(id);
188
189 if (pmeth == NULL) {
190 EVPerror(EVP_R_UNSUPPORTED_ALGORITHM);
191 return NULL;
192 }
193
194 ret = malloc(sizeof(EVP_PKEY_CTX));
195 if (ret == NULL) {
196 #ifndef OPENSSL_NO_ENGINE
197 ENGINE_finish(e);
198 #endif
199 EVPerror(ERR_R_MALLOC_FAILURE);
200 return NULL;
201 }
202 ret->engine = e;
203 ret->pmeth = pmeth;
204 ret->operation = EVP_PKEY_OP_UNDEFINED;
205 ret->pkey = pkey;
206 ret->peerkey = NULL;
207 ret->pkey_gencb = 0;
208 if (pkey)
209 CRYPTO_add(&pkey->references, 1, CRYPTO_LOCK_EVP_PKEY);
210 ret->data = NULL;
211
212 if (pmeth->init) {
213 if (pmeth->init(ret) <= 0) {
214 EVP_PKEY_CTX_free(ret);
215 return NULL;
216 }
217 }
218
219 return ret;
220 }
221
222 EVP_PKEY_METHOD*
EVP_PKEY_meth_new(int id,int flags)223 EVP_PKEY_meth_new(int id, int flags)
224 {
225 EVP_PKEY_METHOD *pmeth;
226
227 pmeth = calloc(1, sizeof(EVP_PKEY_METHOD));
228 if (!pmeth)
229 return NULL;
230
231 pmeth->pkey_id = id;
232 pmeth->flags = flags | EVP_PKEY_FLAG_DYNAMIC;
233
234 pmeth->init = 0;
235 pmeth->copy = 0;
236 pmeth->cleanup = 0;
237 pmeth->paramgen_init = 0;
238 pmeth->paramgen = 0;
239 pmeth->keygen_init = 0;
240 pmeth->keygen = 0;
241 pmeth->sign_init = 0;
242 pmeth->sign = 0;
243 pmeth->verify_init = 0;
244 pmeth->verify = 0;
245 pmeth->verify_recover_init = 0;
246 pmeth->verify_recover = 0;
247 pmeth->signctx_init = 0;
248 pmeth->signctx = 0;
249 pmeth->verifyctx_init = 0;
250 pmeth->verifyctx = 0;
251 pmeth->encrypt_init = 0;
252 pmeth->encrypt = 0;
253 pmeth->decrypt_init = 0;
254 pmeth->decrypt = 0;
255 pmeth->derive_init = 0;
256 pmeth->derive = 0;
257 pmeth->ctrl = 0;
258 pmeth->ctrl_str = 0;
259
260 return pmeth;
261 }
262
263 void
EVP_PKEY_meth_get0_info(int * ppkey_id,int * pflags,const EVP_PKEY_METHOD * meth)264 EVP_PKEY_meth_get0_info(int *ppkey_id, int *pflags, const EVP_PKEY_METHOD *meth)
265 {
266 if (ppkey_id)
267 *ppkey_id = meth->pkey_id;
268 if (pflags)
269 *pflags = meth->flags;
270 }
271
272 void
EVP_PKEY_meth_copy(EVP_PKEY_METHOD * dst,const EVP_PKEY_METHOD * src)273 EVP_PKEY_meth_copy(EVP_PKEY_METHOD *dst, const EVP_PKEY_METHOD *src)
274 {
275 dst->init = src->init;
276 dst->copy = src->copy;
277 dst->cleanup = src->cleanup;
278
279 dst->paramgen_init = src->paramgen_init;
280 dst->paramgen = src->paramgen;
281
282 dst->keygen_init = src->keygen_init;
283 dst->keygen = src->keygen;
284
285 dst->sign_init = src->sign_init;
286 dst->sign = src->sign;
287
288 dst->verify_init = src->verify_init;
289 dst->verify = src->verify;
290
291 dst->verify_recover_init = src->verify_recover_init;
292 dst->verify_recover = src->verify_recover;
293
294 dst->signctx_init = src->signctx_init;
295 dst->signctx = src->signctx;
296
297 dst->verifyctx_init = src->verifyctx_init;
298 dst->verifyctx = src->verifyctx;
299
300 dst->encrypt_init = src->encrypt_init;
301 dst->encrypt = src->encrypt;
302
303 dst->decrypt_init = src->decrypt_init;
304 dst->decrypt = src->decrypt;
305
306 dst->derive_init = src->derive_init;
307 dst->derive = src->derive;
308
309 dst->ctrl = src->ctrl;
310 dst->ctrl_str = src->ctrl_str;
311 }
312
313 void
EVP_PKEY_meth_free(EVP_PKEY_METHOD * pmeth)314 EVP_PKEY_meth_free(EVP_PKEY_METHOD *pmeth)
315 {
316 if (pmeth && (pmeth->flags & EVP_PKEY_FLAG_DYNAMIC))
317 free(pmeth);
318 }
319
320 EVP_PKEY_CTX *
EVP_PKEY_CTX_new(EVP_PKEY * pkey,ENGINE * e)321 EVP_PKEY_CTX_new(EVP_PKEY *pkey, ENGINE *e)
322 {
323 return int_ctx_new(pkey, e, -1);
324 }
325
326 EVP_PKEY_CTX *
EVP_PKEY_CTX_new_id(int id,ENGINE * e)327 EVP_PKEY_CTX_new_id(int id, ENGINE *e)
328 {
329 return int_ctx_new(NULL, e, id);
330 }
331
332 EVP_PKEY_CTX *
EVP_PKEY_CTX_dup(EVP_PKEY_CTX * pctx)333 EVP_PKEY_CTX_dup(EVP_PKEY_CTX *pctx)
334 {
335 EVP_PKEY_CTX *rctx;
336
337 if (!pctx->pmeth || !pctx->pmeth->copy)
338 return NULL;
339 #ifndef OPENSSL_NO_ENGINE
340 /* Make sure it's safe to copy a pkey context using an ENGINE */
341 if (pctx->engine && !ENGINE_init(pctx->engine)) {
342 EVPerror(ERR_R_ENGINE_LIB);
343 return 0;
344 }
345 #endif
346 rctx = malloc(sizeof(EVP_PKEY_CTX));
347 if (!rctx)
348 return NULL;
349
350 rctx->pmeth = pctx->pmeth;
351 #ifndef OPENSSL_NO_ENGINE
352 rctx->engine = pctx->engine;
353 #endif
354
355 if (pctx->pkey)
356 CRYPTO_add(&pctx->pkey->references, 1, CRYPTO_LOCK_EVP_PKEY);
357
358 rctx->pkey = pctx->pkey;
359
360 if (pctx->peerkey)
361 CRYPTO_add(&pctx->peerkey->references, 1, CRYPTO_LOCK_EVP_PKEY);
362
363 rctx->peerkey = pctx->peerkey;
364
365 rctx->data = NULL;
366 rctx->app_data = NULL;
367 rctx->operation = pctx->operation;
368
369 if (pctx->pmeth->copy(rctx, pctx) > 0)
370 return rctx;
371
372 EVP_PKEY_CTX_free(rctx);
373 return NULL;
374 }
375
376 int
EVP_PKEY_meth_add0(const EVP_PKEY_METHOD * pmeth)377 EVP_PKEY_meth_add0(const EVP_PKEY_METHOD *pmeth)
378 {
379 if (app_pkey_methods == NULL) {
380 app_pkey_methods = sk_EVP_PKEY_METHOD_new(pmeth_cmp);
381 if (!app_pkey_methods)
382 return 0;
383 }
384 if (!sk_EVP_PKEY_METHOD_push(app_pkey_methods, pmeth))
385 return 0;
386 sk_EVP_PKEY_METHOD_sort(app_pkey_methods);
387 return 1;
388 }
389
390 void
EVP_PKEY_CTX_free(EVP_PKEY_CTX * ctx)391 EVP_PKEY_CTX_free(EVP_PKEY_CTX *ctx)
392 {
393 if (ctx == NULL)
394 return;
395 if (ctx->pmeth && ctx->pmeth->cleanup)
396 ctx->pmeth->cleanup(ctx);
397 EVP_PKEY_free(ctx->pkey);
398 EVP_PKEY_free(ctx->peerkey);
399 #ifndef OPENSSL_NO_ENGINE
400 ENGINE_finish(ctx->engine);
401 #endif
402 free(ctx);
403 }
404
405 int
EVP_PKEY_CTX_ctrl(EVP_PKEY_CTX * ctx,int keytype,int optype,int cmd,int p1,void * p2)406 EVP_PKEY_CTX_ctrl(EVP_PKEY_CTX *ctx, int keytype, int optype, int cmd,
407 int p1, void *p2)
408 {
409 int ret;
410
411 if (!ctx || !ctx->pmeth || !ctx->pmeth->ctrl) {
412 EVPerror(EVP_R_COMMAND_NOT_SUPPORTED);
413 return -2;
414 }
415 if ((keytype != -1) && (ctx->pmeth->pkey_id != keytype))
416 return -1;
417
418 if (ctx->operation == EVP_PKEY_OP_UNDEFINED) {
419 EVPerror(EVP_R_NO_OPERATION_SET);
420 return -1;
421 }
422
423 if ((optype != -1) && !(ctx->operation & optype)) {
424 EVPerror(EVP_R_INVALID_OPERATION);
425 return -1;
426 }
427
428 ret = ctx->pmeth->ctrl(ctx, cmd, p1, p2);
429
430 if (ret == -2)
431 EVPerror(EVP_R_COMMAND_NOT_SUPPORTED);
432
433 return ret;
434
435 }
436
437 int
EVP_PKEY_CTX_ctrl_str(EVP_PKEY_CTX * ctx,const char * name,const char * value)438 EVP_PKEY_CTX_ctrl_str(EVP_PKEY_CTX *ctx, const char *name, const char *value)
439 {
440 if (!ctx || !ctx->pmeth || !ctx->pmeth->ctrl_str) {
441 EVPerror(EVP_R_COMMAND_NOT_SUPPORTED);
442 return -2;
443 }
444 if (!strcmp(name, "digest")) {
445 return EVP_PKEY_CTX_md(ctx, EVP_PKEY_OP_TYPE_SIG,
446 EVP_PKEY_CTRL_MD, value);
447 }
448 return ctx->pmeth->ctrl_str(ctx, name, value);
449 }
450
451 int
EVP_PKEY_CTX_md(EVP_PKEY_CTX * ctx,int optype,int cmd,const char * md_name)452 EVP_PKEY_CTX_md(EVP_PKEY_CTX *ctx, int optype, int cmd, const char *md_name)
453 {
454 const EVP_MD *md;
455
456 if ((md = EVP_get_digestbyname(md_name)) == NULL) {
457 EVPerror(EVP_R_INVALID_DIGEST);
458 return 0;
459 }
460 return EVP_PKEY_CTX_ctrl(ctx, -1, optype, cmd, 0, (void *)md);
461 }
462
463 int
EVP_PKEY_CTX_get_operation(EVP_PKEY_CTX * ctx)464 EVP_PKEY_CTX_get_operation(EVP_PKEY_CTX *ctx)
465 {
466 return ctx->operation;
467 }
468
469 void
EVP_PKEY_CTX_set0_keygen_info(EVP_PKEY_CTX * ctx,int * dat,int datlen)470 EVP_PKEY_CTX_set0_keygen_info(EVP_PKEY_CTX *ctx, int *dat, int datlen)
471 {
472 ctx->keygen_info = dat;
473 ctx->keygen_info_count = datlen;
474 }
475
476 void
EVP_PKEY_CTX_set_data(EVP_PKEY_CTX * ctx,void * data)477 EVP_PKEY_CTX_set_data(EVP_PKEY_CTX *ctx, void *data)
478 {
479 ctx->data = data;
480 }
481
482 void *
EVP_PKEY_CTX_get_data(EVP_PKEY_CTX * ctx)483 EVP_PKEY_CTX_get_data(EVP_PKEY_CTX *ctx)
484 {
485 return ctx->data;
486 }
487
488 EVP_PKEY *
EVP_PKEY_CTX_get0_pkey(EVP_PKEY_CTX * ctx)489 EVP_PKEY_CTX_get0_pkey(EVP_PKEY_CTX *ctx)
490 {
491 return ctx->pkey;
492 }
493
494 EVP_PKEY *
EVP_PKEY_CTX_get0_peerkey(EVP_PKEY_CTX * ctx)495 EVP_PKEY_CTX_get0_peerkey(EVP_PKEY_CTX *ctx)
496 {
497 return ctx->peerkey;
498 }
499
500 void
EVP_PKEY_CTX_set_app_data(EVP_PKEY_CTX * ctx,void * data)501 EVP_PKEY_CTX_set_app_data(EVP_PKEY_CTX *ctx, void *data)
502 {
503 ctx->app_data = data;
504 }
505
506 void *
EVP_PKEY_CTX_get_app_data(EVP_PKEY_CTX * ctx)507 EVP_PKEY_CTX_get_app_data(EVP_PKEY_CTX *ctx)
508 {
509 return ctx->app_data;
510 }
511
512 void
EVP_PKEY_meth_set_init(EVP_PKEY_METHOD * pmeth,int (* init)(EVP_PKEY_CTX * ctx))513 EVP_PKEY_meth_set_init(EVP_PKEY_METHOD *pmeth,
514 int (*init)(EVP_PKEY_CTX *ctx))
515 {
516 pmeth->init = init;
517 }
518
519 void
EVP_PKEY_meth_set_copy(EVP_PKEY_METHOD * pmeth,int (* copy)(EVP_PKEY_CTX * dst,EVP_PKEY_CTX * src))520 EVP_PKEY_meth_set_copy(EVP_PKEY_METHOD *pmeth,
521 int (*copy)(EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src))
522 {
523 pmeth->copy = copy;
524 }
525
526 void
EVP_PKEY_meth_set_cleanup(EVP_PKEY_METHOD * pmeth,void (* cleanup)(EVP_PKEY_CTX * ctx))527 EVP_PKEY_meth_set_cleanup(EVP_PKEY_METHOD *pmeth,
528 void (*cleanup)(EVP_PKEY_CTX *ctx))
529 {
530 pmeth->cleanup = cleanup;
531 }
532
533 void
EVP_PKEY_meth_set_paramgen(EVP_PKEY_METHOD * pmeth,int (* paramgen_init)(EVP_PKEY_CTX * ctx),int (* paramgen)(EVP_PKEY_CTX * ctx,EVP_PKEY * pkey))534 EVP_PKEY_meth_set_paramgen(EVP_PKEY_METHOD *pmeth,
535 int (*paramgen_init)(EVP_PKEY_CTX *ctx),
536 int (*paramgen)(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey))
537 {
538 pmeth->paramgen_init = paramgen_init;
539 pmeth->paramgen = paramgen;
540 }
541
542 void
EVP_PKEY_meth_set_keygen(EVP_PKEY_METHOD * pmeth,int (* keygen_init)(EVP_PKEY_CTX * ctx),int (* keygen)(EVP_PKEY_CTX * ctx,EVP_PKEY * pkey))543 EVP_PKEY_meth_set_keygen(EVP_PKEY_METHOD *pmeth,
544 int (*keygen_init)(EVP_PKEY_CTX *ctx),
545 int (*keygen)(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey))
546 {
547 pmeth->keygen_init = keygen_init;
548 pmeth->keygen = keygen;
549 }
550
551 void
EVP_PKEY_meth_set_sign(EVP_PKEY_METHOD * pmeth,int (* sign_init)(EVP_PKEY_CTX * ctx),int (* sign)(EVP_PKEY_CTX * ctx,unsigned char * sig,size_t * siglen,const unsigned char * tbs,size_t tbslen))552 EVP_PKEY_meth_set_sign(EVP_PKEY_METHOD *pmeth,
553 int (*sign_init)(EVP_PKEY_CTX *ctx),
554 int (*sign)(EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
555 const unsigned char *tbs, size_t tbslen))
556 {
557 pmeth->sign_init = sign_init;
558 pmeth->sign = sign;
559 }
560
561 void
EVP_PKEY_meth_set_verify(EVP_PKEY_METHOD * pmeth,int (* verify_init)(EVP_PKEY_CTX * ctx),int (* verify)(EVP_PKEY_CTX * ctx,const unsigned char * sig,size_t siglen,const unsigned char * tbs,size_t tbslen))562 EVP_PKEY_meth_set_verify(EVP_PKEY_METHOD *pmeth,
563 int (*verify_init)(EVP_PKEY_CTX *ctx),
564 int (*verify)(EVP_PKEY_CTX *ctx, const unsigned char *sig, size_t siglen,
565 const unsigned char *tbs, size_t tbslen))
566 {
567 pmeth->verify_init = verify_init;
568 pmeth->verify = verify;
569 }
570
571 void
EVP_PKEY_meth_set_verify_recover(EVP_PKEY_METHOD * pmeth,int (* verify_recover_init)(EVP_PKEY_CTX * ctx),int (* verify_recover)(EVP_PKEY_CTX * ctx,unsigned char * sig,size_t * siglen,const unsigned char * tbs,size_t tbslen))572 EVP_PKEY_meth_set_verify_recover(EVP_PKEY_METHOD *pmeth,
573 int (*verify_recover_init)(EVP_PKEY_CTX *ctx),
574 int (*verify_recover)(EVP_PKEY_CTX *ctx,
575 unsigned char *sig, size_t *siglen,
576 const unsigned char *tbs, size_t tbslen))
577 {
578 pmeth->verify_recover_init = verify_recover_init;
579 pmeth->verify_recover = verify_recover;
580 }
581
582 void
EVP_PKEY_meth_set_signctx(EVP_PKEY_METHOD * pmeth,int (* signctx_init)(EVP_PKEY_CTX * ctx,EVP_MD_CTX * mctx),int (* signctx)(EVP_PKEY_CTX * ctx,unsigned char * sig,size_t * siglen,EVP_MD_CTX * mctx))583 EVP_PKEY_meth_set_signctx(EVP_PKEY_METHOD *pmeth,
584 int (*signctx_init)(EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx),
585 int (*signctx)(EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
586 EVP_MD_CTX *mctx))
587 {
588 pmeth->signctx_init = signctx_init;
589 pmeth->signctx = signctx;
590 }
591
592 void
EVP_PKEY_meth_set_verifyctx(EVP_PKEY_METHOD * pmeth,int (* verifyctx_init)(EVP_PKEY_CTX * ctx,EVP_MD_CTX * mctx),int (* verifyctx)(EVP_PKEY_CTX * ctx,const unsigned char * sig,int siglen,EVP_MD_CTX * mctx))593 EVP_PKEY_meth_set_verifyctx(EVP_PKEY_METHOD *pmeth,
594 int (*verifyctx_init)(EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx),
595 int (*verifyctx)(EVP_PKEY_CTX *ctx, const unsigned char *sig, int siglen,
596 EVP_MD_CTX *mctx))
597 {
598 pmeth->verifyctx_init = verifyctx_init;
599 pmeth->verifyctx = verifyctx;
600 }
601
602 void
EVP_PKEY_meth_set_encrypt(EVP_PKEY_METHOD * pmeth,int (* encrypt_init)(EVP_PKEY_CTX * ctx),int (* encryptfn)(EVP_PKEY_CTX * ctx,unsigned char * out,size_t * outlen,const unsigned char * in,size_t inlen))603 EVP_PKEY_meth_set_encrypt(EVP_PKEY_METHOD *pmeth,
604 int (*encrypt_init)(EVP_PKEY_CTX *ctx),
605 int (*encryptfn)(EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen,
606 const unsigned char *in, size_t inlen))
607 {
608 pmeth->encrypt_init = encrypt_init;
609 pmeth->encrypt = encryptfn;
610 }
611
612 void
EVP_PKEY_meth_set_decrypt(EVP_PKEY_METHOD * pmeth,int (* decrypt_init)(EVP_PKEY_CTX * ctx),int (* decrypt)(EVP_PKEY_CTX * ctx,unsigned char * out,size_t * outlen,const unsigned char * in,size_t inlen))613 EVP_PKEY_meth_set_decrypt(EVP_PKEY_METHOD *pmeth,
614 int (*decrypt_init)(EVP_PKEY_CTX *ctx),
615 int (*decrypt)(EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen,
616 const unsigned char *in, size_t inlen))
617 {
618 pmeth->decrypt_init = decrypt_init;
619 pmeth->decrypt = decrypt;
620 }
621
622 void
EVP_PKEY_meth_set_derive(EVP_PKEY_METHOD * pmeth,int (* derive_init)(EVP_PKEY_CTX * ctx),int (* derive)(EVP_PKEY_CTX * ctx,unsigned char * key,size_t * keylen))623 EVP_PKEY_meth_set_derive(EVP_PKEY_METHOD *pmeth,
624 int (*derive_init)(EVP_PKEY_CTX *ctx),
625 int (*derive)(EVP_PKEY_CTX *ctx, unsigned char *key, size_t *keylen))
626 {
627 pmeth->derive_init = derive_init;
628 pmeth->derive = derive;
629 }
630
631 void
EVP_PKEY_meth_set_ctrl(EVP_PKEY_METHOD * pmeth,int (* ctrl)(EVP_PKEY_CTX * ctx,int type,int p1,void * p2),int (* ctrl_str)(EVP_PKEY_CTX * ctx,const char * type,const char * value))632 EVP_PKEY_meth_set_ctrl(EVP_PKEY_METHOD *pmeth,
633 int (*ctrl)(EVP_PKEY_CTX *ctx, int type, int p1, void *p2),
634 int (*ctrl_str)(EVP_PKEY_CTX *ctx, const char *type, const char *value))
635 {
636 pmeth->ctrl = ctrl;
637 pmeth->ctrl_str = ctrl_str;
638 }
639