2 * Copyright 2006-2017 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
12 #include "internal/cryptlib.h"
13 #include <openssl/engine.h>
14 #include <openssl/evp.h>
15 #include <openssl/x509v3.h>
16 #include "internal/asn1_int.h"
17 #include "internal/evp_int.h"
18 #include "internal/numbers.h"
20 typedef int sk_cmp_fn_type(const char *const *a
, const char *const *b
);
22 static STACK_OF(EVP_PKEY_METHOD
) *app_pkey_methods
= NULL
;
24 /* This array needs to be in order of NIDs */
25 static const EVP_PKEY_METHOD
*standard_methods
[] = {
26 #ifndef OPENSSL_NO_RSA
32 #ifndef OPENSSL_NO_DSA
39 #ifndef OPENSSL_NO_CMAC
42 #ifndef OPENSSL_NO_RSA
48 #ifndef OPENSSL_NO_SCRYPT
56 #ifndef OPENSSL_NO_POLY1305
59 #ifndef OPENSSL_NO_SIPHASH
67 DECLARE_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD
*, const EVP_PKEY_METHOD
*,
70 static int pmeth_cmp(const EVP_PKEY_METHOD
*const *a
,
71 const EVP_PKEY_METHOD
*const *b
)
73 return ((*a
)->pkey_id
- (*b
)->pkey_id
);
76 IMPLEMENT_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD
*, const EVP_PKEY_METHOD
*,
79 const EVP_PKEY_METHOD
*EVP_PKEY_meth_find(int type
)
82 const EVP_PKEY_METHOD
*t
= &tmp
, **ret
;
84 if (app_pkey_methods
) {
86 idx
= sk_EVP_PKEY_METHOD_find(app_pkey_methods
, &tmp
);
88 return sk_EVP_PKEY_METHOD_value(app_pkey_methods
, idx
);
90 ret
= OBJ_bsearch_pmeth(&t
, standard_methods
,
91 sizeof(standard_methods
) /
92 sizeof(EVP_PKEY_METHOD
*));
98 static EVP_PKEY_CTX
*int_ctx_new(EVP_PKEY
*pkey
, ENGINE
*e
, int id
)
101 const EVP_PKEY_METHOD
*pmeth
;
103 if (!pkey
|| !pkey
->ameth
)
105 id
= pkey
->ameth
->pkey_id
;
107 #ifndef OPENSSL_NO_ENGINE
108 if (e
== NULL
&& pkey
!= NULL
)
110 /* Try to find an ENGINE which implements this method */
112 if (!ENGINE_init(e
)) {
113 EVPerr(EVP_F_INT_CTX_NEW
, ERR_R_ENGINE_LIB
);
117 e
= ENGINE_get_pkey_meth_engine(id
);
121 * If an ENGINE handled this method look it up. Otherwise use internal
126 pmeth
= ENGINE_get_pkey_meth(e
, id
);
129 pmeth
= EVP_PKEY_meth_find(id
);
132 #ifndef OPENSSL_NO_ENGINE
135 EVPerr(EVP_F_INT_CTX_NEW
, EVP_R_UNSUPPORTED_ALGORITHM
);
139 ret
= OPENSSL_zalloc(sizeof(*ret
));
141 #ifndef OPENSSL_NO_ENGINE
144 EVPerr(EVP_F_INT_CTX_NEW
, ERR_R_MALLOC_FAILURE
);
149 ret
->operation
= EVP_PKEY_OP_UNDEFINED
;
152 EVP_PKEY_up_ref(pkey
);
155 if (pmeth
->init(ret
) <= 0) {
157 EVP_PKEY_CTX_free(ret
);
165 EVP_PKEY_METHOD
*EVP_PKEY_meth_new(int id
, int flags
)
167 EVP_PKEY_METHOD
*pmeth
;
169 pmeth
= OPENSSL_zalloc(sizeof(*pmeth
));
174 pmeth
->flags
= flags
| EVP_PKEY_FLAG_DYNAMIC
;
178 void EVP_PKEY_meth_get0_info(int *ppkey_id
, int *pflags
,
179 const EVP_PKEY_METHOD
*meth
)
182 *ppkey_id
= meth
->pkey_id
;
184 *pflags
= meth
->flags
;
187 void EVP_PKEY_meth_copy(EVP_PKEY_METHOD
*dst
, const EVP_PKEY_METHOD
*src
)
190 dst
->init
= src
->init
;
191 dst
->copy
= src
->copy
;
192 dst
->cleanup
= src
->cleanup
;
194 dst
->paramgen_init
= src
->paramgen_init
;
195 dst
->paramgen
= src
->paramgen
;
197 dst
->keygen_init
= src
->keygen_init
;
198 dst
->keygen
= src
->keygen
;
200 dst
->sign_init
= src
->sign_init
;
201 dst
->sign
= src
->sign
;
203 dst
->verify_init
= src
->verify_init
;
204 dst
->verify
= src
->verify
;
206 dst
->verify_recover_init
= src
->verify_recover_init
;
207 dst
->verify_recover
= src
->verify_recover
;
209 dst
->signctx_init
= src
->signctx_init
;
210 dst
->signctx
= src
->signctx
;
212 dst
->verifyctx_init
= src
->verifyctx_init
;
213 dst
->verifyctx
= src
->verifyctx
;
215 dst
->encrypt_init
= src
->encrypt_init
;
216 dst
->encrypt
= src
->encrypt
;
218 dst
->decrypt_init
= src
->decrypt_init
;
219 dst
->decrypt
= src
->decrypt
;
221 dst
->derive_init
= src
->derive_init
;
222 dst
->derive
= src
->derive
;
224 dst
->ctrl
= src
->ctrl
;
225 dst
->ctrl_str
= src
->ctrl_str
;
227 dst
->check
= src
->check
;
230 void EVP_PKEY_meth_free(EVP_PKEY_METHOD
*pmeth
)
232 if (pmeth
&& (pmeth
->flags
& EVP_PKEY_FLAG_DYNAMIC
))
236 EVP_PKEY_CTX
*EVP_PKEY_CTX_new(EVP_PKEY
*pkey
, ENGINE
*e
)
238 return int_ctx_new(pkey
, e
, -1);
241 EVP_PKEY_CTX
*EVP_PKEY_CTX_new_id(int id
, ENGINE
*e
)
243 return int_ctx_new(NULL
, e
, id
);
246 EVP_PKEY_CTX
*EVP_PKEY_CTX_dup(EVP_PKEY_CTX
*pctx
)
249 if (!pctx
->pmeth
|| !pctx
->pmeth
->copy
)
251 #ifndef OPENSSL_NO_ENGINE
252 /* Make sure it's safe to copy a pkey context using an ENGINE */
253 if (pctx
->engine
&& !ENGINE_init(pctx
->engine
)) {
254 EVPerr(EVP_F_EVP_PKEY_CTX_DUP
, ERR_R_ENGINE_LIB
);
258 rctx
= OPENSSL_malloc(sizeof(*rctx
));
262 rctx
->pmeth
= pctx
->pmeth
;
263 #ifndef OPENSSL_NO_ENGINE
264 rctx
->engine
= pctx
->engine
;
268 EVP_PKEY_up_ref(pctx
->pkey
);
270 rctx
->pkey
= pctx
->pkey
;
273 EVP_PKEY_up_ref(pctx
->peerkey
);
275 rctx
->peerkey
= pctx
->peerkey
;
278 rctx
->app_data
= NULL
;
279 rctx
->operation
= pctx
->operation
;
281 if (pctx
->pmeth
->copy(rctx
, pctx
) > 0)
285 EVP_PKEY_CTX_free(rctx
);
290 int EVP_PKEY_meth_add0(const EVP_PKEY_METHOD
*pmeth
)
292 if (app_pkey_methods
== NULL
) {
293 app_pkey_methods
= sk_EVP_PKEY_METHOD_new(pmeth_cmp
);
294 if (app_pkey_methods
== NULL
)
297 if (!sk_EVP_PKEY_METHOD_push(app_pkey_methods
, pmeth
))
299 sk_EVP_PKEY_METHOD_sort(app_pkey_methods
);
303 void evp_app_cleanup_int(void)
305 if (app_pkey_methods
!= NULL
)
306 sk_EVP_PKEY_METHOD_pop_free(app_pkey_methods
, EVP_PKEY_meth_free
);
309 int EVP_PKEY_meth_remove(const EVP_PKEY_METHOD
*pmeth
)
311 const EVP_PKEY_METHOD
*ret
;
313 ret
= sk_EVP_PKEY_METHOD_delete_ptr(app_pkey_methods
, pmeth
);
315 return ret
== NULL
? 0 : 1;
318 size_t EVP_PKEY_meth_get_count(void)
320 size_t rv
= OSSL_NELEM(standard_methods
);
322 if (app_pkey_methods
)
323 rv
+= sk_EVP_PKEY_METHOD_num(app_pkey_methods
);
327 const EVP_PKEY_METHOD
*EVP_PKEY_meth_get0(size_t idx
)
329 if (idx
< OSSL_NELEM(standard_methods
))
330 return standard_methods
[idx
];
331 if (app_pkey_methods
== NULL
)
333 idx
-= OSSL_NELEM(standard_methods
);
334 if (idx
>= (size_t)sk_EVP_PKEY_METHOD_num(app_pkey_methods
))
336 return sk_EVP_PKEY_METHOD_value(app_pkey_methods
, idx
);
339 void EVP_PKEY_CTX_free(EVP_PKEY_CTX
*ctx
)
343 if (ctx
->pmeth
&& ctx
->pmeth
->cleanup
)
344 ctx
->pmeth
->cleanup(ctx
);
345 EVP_PKEY_free(ctx
->pkey
);
346 EVP_PKEY_free(ctx
->peerkey
);
347 #ifndef OPENSSL_NO_ENGINE
348 ENGINE_finish(ctx
->engine
);
353 int EVP_PKEY_CTX_ctrl(EVP_PKEY_CTX
*ctx
, int keytype
, int optype
,
354 int cmd
, int p1
, void *p2
)
357 if (!ctx
|| !ctx
->pmeth
|| !ctx
->pmeth
->ctrl
) {
358 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL
, EVP_R_COMMAND_NOT_SUPPORTED
);
361 if ((keytype
!= -1) && (ctx
->pmeth
->pkey_id
!= keytype
))
364 if (ctx
->operation
== EVP_PKEY_OP_UNDEFINED
) {
365 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL
, EVP_R_NO_OPERATION_SET
);
369 if ((optype
!= -1) && !(ctx
->operation
& optype
)) {
370 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL
, EVP_R_INVALID_OPERATION
);
374 ret
= ctx
->pmeth
->ctrl(ctx
, cmd
, p1
, p2
);
377 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL
, EVP_R_COMMAND_NOT_SUPPORTED
);
383 int EVP_PKEY_CTX_ctrl_uint64(EVP_PKEY_CTX
*ctx
, int keytype
, int optype
,
384 int cmd
, uint64_t value
)
386 return EVP_PKEY_CTX_ctrl(ctx
, keytype
, optype
, cmd
, 0, &value
);
389 int EVP_PKEY_CTX_ctrl_str(EVP_PKEY_CTX
*ctx
,
390 const char *name
, const char *value
)
392 if (!ctx
|| !ctx
->pmeth
|| !ctx
->pmeth
->ctrl_str
) {
393 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL_STR
, EVP_R_COMMAND_NOT_SUPPORTED
);
396 if (strcmp(name
, "digest") == 0)
397 return EVP_PKEY_CTX_md(ctx
, EVP_PKEY_OP_TYPE_SIG
, EVP_PKEY_CTRL_MD
,
399 return ctx
->pmeth
->ctrl_str(ctx
, name
, value
);
402 /* Utility functions to send a string of hex string to a ctrl */
404 int EVP_PKEY_CTX_str2ctrl(EVP_PKEY_CTX
*ctx
, int cmd
, const char *str
)
411 return ctx
->pmeth
->ctrl(ctx
, cmd
, len
, (void *)str
);
414 int EVP_PKEY_CTX_hex2ctrl(EVP_PKEY_CTX
*ctx
, int cmd
, const char *hex
)
420 bin
= OPENSSL_hexstr2buf(hex
, &binlen
);
423 if (binlen
<= INT_MAX
)
424 rv
= ctx
->pmeth
->ctrl(ctx
, cmd
, binlen
, bin
);
429 /* Pass a message digest to a ctrl */
430 int EVP_PKEY_CTX_md(EVP_PKEY_CTX
*ctx
, int optype
, int cmd
, const char *md
)
434 if (md
== NULL
|| (m
= EVP_get_digestbyname(md
)) == NULL
) {
435 EVPerr(EVP_F_EVP_PKEY_CTX_MD
, EVP_R_INVALID_DIGEST
);
438 return EVP_PKEY_CTX_ctrl(ctx
, -1, optype
, cmd
, 0, (void *)m
);
441 int EVP_PKEY_CTX_get_operation(EVP_PKEY_CTX
*ctx
)
443 return ctx
->operation
;
446 void EVP_PKEY_CTX_set0_keygen_info(EVP_PKEY_CTX
*ctx
, int *dat
, int datlen
)
448 ctx
->keygen_info
= dat
;
449 ctx
->keygen_info_count
= datlen
;
452 void EVP_PKEY_CTX_set_data(EVP_PKEY_CTX
*ctx
, void *data
)
457 void *EVP_PKEY_CTX_get_data(EVP_PKEY_CTX
*ctx
)
462 EVP_PKEY
*EVP_PKEY_CTX_get0_pkey(EVP_PKEY_CTX
*ctx
)
467 EVP_PKEY
*EVP_PKEY_CTX_get0_peerkey(EVP_PKEY_CTX
*ctx
)
472 void EVP_PKEY_CTX_set_app_data(EVP_PKEY_CTX
*ctx
, void *data
)
474 ctx
->app_data
= data
;
477 void *EVP_PKEY_CTX_get_app_data(EVP_PKEY_CTX
*ctx
)
479 return ctx
->app_data
;
482 void EVP_PKEY_meth_set_init(EVP_PKEY_METHOD
*pmeth
,
483 int (*init
) (EVP_PKEY_CTX
*ctx
))
488 void EVP_PKEY_meth_set_copy(EVP_PKEY_METHOD
*pmeth
,
489 int (*copy
) (EVP_PKEY_CTX
*dst
,
495 void EVP_PKEY_meth_set_cleanup(EVP_PKEY_METHOD
*pmeth
,
496 void (*cleanup
) (EVP_PKEY_CTX
*ctx
))
498 pmeth
->cleanup
= cleanup
;
501 void EVP_PKEY_meth_set_paramgen(EVP_PKEY_METHOD
*pmeth
,
502 int (*paramgen_init
) (EVP_PKEY_CTX
*ctx
),
503 int (*paramgen
) (EVP_PKEY_CTX
*ctx
,
506 pmeth
->paramgen_init
= paramgen_init
;
507 pmeth
->paramgen
= paramgen
;
510 void EVP_PKEY_meth_set_keygen(EVP_PKEY_METHOD
*pmeth
,
511 int (*keygen_init
) (EVP_PKEY_CTX
*ctx
),
512 int (*keygen
) (EVP_PKEY_CTX
*ctx
,
515 pmeth
->keygen_init
= keygen_init
;
516 pmeth
->keygen
= keygen
;
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
,
522 unsigned char *sig
, size_t *siglen
,
523 const unsigned char *tbs
,
526 pmeth
->sign_init
= sign_init
;
530 void EVP_PKEY_meth_set_verify(EVP_PKEY_METHOD
*pmeth
,
531 int (*verify_init
) (EVP_PKEY_CTX
*ctx
),
532 int (*verify
) (EVP_PKEY_CTX
*ctx
,
533 const unsigned char *sig
,
535 const unsigned char *tbs
,
538 pmeth
->verify_init
= verify_init
;
539 pmeth
->verify
= verify
;
542 void EVP_PKEY_meth_set_verify_recover(EVP_PKEY_METHOD
*pmeth
,
543 int (*verify_recover_init
) (EVP_PKEY_CTX
545 int (*verify_recover
) (EVP_PKEY_CTX
554 pmeth
->verify_recover_init
= verify_recover_init
;
555 pmeth
->verify_recover
= verify_recover
;
558 void EVP_PKEY_meth_set_signctx(EVP_PKEY_METHOD
*pmeth
,
559 int (*signctx_init
) (EVP_PKEY_CTX
*ctx
,
561 int (*signctx
) (EVP_PKEY_CTX
*ctx
,
566 pmeth
->signctx_init
= signctx_init
;
567 pmeth
->signctx
= signctx
;
570 void EVP_PKEY_meth_set_verifyctx(EVP_PKEY_METHOD
*pmeth
,
571 int (*verifyctx_init
) (EVP_PKEY_CTX
*ctx
,
573 int (*verifyctx
) (EVP_PKEY_CTX
*ctx
,
574 const unsigned char *sig
,
578 pmeth
->verifyctx_init
= verifyctx_init
;
579 pmeth
->verifyctx
= verifyctx
;
582 void EVP_PKEY_meth_set_encrypt(EVP_PKEY_METHOD
*pmeth
,
583 int (*encrypt_init
) (EVP_PKEY_CTX
*ctx
),
584 int (*encryptfn
) (EVP_PKEY_CTX
*ctx
,
587 const unsigned char *in
,
590 pmeth
->encrypt_init
= encrypt_init
;
591 pmeth
->encrypt
= encryptfn
;
594 void EVP_PKEY_meth_set_decrypt(EVP_PKEY_METHOD
*pmeth
,
595 int (*decrypt_init
) (EVP_PKEY_CTX
*ctx
),
596 int (*decrypt
) (EVP_PKEY_CTX
*ctx
,
599 const unsigned char *in
,
602 pmeth
->decrypt_init
= decrypt_init
;
603 pmeth
->decrypt
= decrypt
;
606 void EVP_PKEY_meth_set_derive(EVP_PKEY_METHOD
*pmeth
,
607 int (*derive_init
) (EVP_PKEY_CTX
*ctx
),
608 int (*derive
) (EVP_PKEY_CTX
*ctx
,
612 pmeth
->derive_init
= derive_init
;
613 pmeth
->derive
= derive
;
616 void EVP_PKEY_meth_set_ctrl(EVP_PKEY_METHOD
*pmeth
,
617 int (*ctrl
) (EVP_PKEY_CTX
*ctx
, int type
, int p1
,
619 int (*ctrl_str
) (EVP_PKEY_CTX
*ctx
,
624 pmeth
->ctrl_str
= ctrl_str
;
627 void EVP_PKEY_meth_set_check(EVP_PKEY_METHOD
*pmeth
,
628 int (*check
) (EVP_PKEY
*pkey
))
630 pmeth
->check
= check
;
633 void EVP_PKEY_meth_get_init(EVP_PKEY_METHOD
*pmeth
,
634 int (**pinit
) (EVP_PKEY_CTX
*ctx
))
636 *pinit
= pmeth
->init
;
639 void EVP_PKEY_meth_get_copy(EVP_PKEY_METHOD
*pmeth
,
640 int (**pcopy
) (EVP_PKEY_CTX
*dst
,
643 *pcopy
= pmeth
->copy
;
646 void EVP_PKEY_meth_get_cleanup(EVP_PKEY_METHOD
*pmeth
,
647 void (**pcleanup
) (EVP_PKEY_CTX
*ctx
))
649 *pcleanup
= pmeth
->cleanup
;
652 void EVP_PKEY_meth_get_paramgen(EVP_PKEY_METHOD
*pmeth
,
653 int (**pparamgen_init
) (EVP_PKEY_CTX
*ctx
),
654 int (**pparamgen
) (EVP_PKEY_CTX
*ctx
,
658 *pparamgen_init
= pmeth
->paramgen_init
;
660 *pparamgen
= pmeth
->paramgen
;
663 void EVP_PKEY_meth_get_keygen(EVP_PKEY_METHOD
*pmeth
,
664 int (**pkeygen_init
) (EVP_PKEY_CTX
*ctx
),
665 int (**pkeygen
) (EVP_PKEY_CTX
*ctx
,
669 *pkeygen_init
= pmeth
->keygen_init
;
671 *pkeygen
= pmeth
->keygen
;
674 void EVP_PKEY_meth_get_sign(EVP_PKEY_METHOD
*pmeth
,
675 int (**psign_init
) (EVP_PKEY_CTX
*ctx
),
676 int (**psign
) (EVP_PKEY_CTX
*ctx
,
677 unsigned char *sig
, size_t *siglen
,
678 const unsigned char *tbs
,
682 *psign_init
= pmeth
->sign_init
;
684 *psign
= pmeth
->sign
;
687 void EVP_PKEY_meth_get_verify(EVP_PKEY_METHOD
*pmeth
,
688 int (**pverify_init
) (EVP_PKEY_CTX
*ctx
),
689 int (**pverify
) (EVP_PKEY_CTX
*ctx
,
690 const unsigned char *sig
,
692 const unsigned char *tbs
,
696 *pverify_init
= pmeth
->verify_init
;
698 *pverify
= pmeth
->verify
;
701 void EVP_PKEY_meth_get_verify_recover(EVP_PKEY_METHOD
*pmeth
,
702 int (**pverify_recover_init
) (EVP_PKEY_CTX
704 int (**pverify_recover
) (EVP_PKEY_CTX
713 if (pverify_recover_init
)
714 *pverify_recover_init
= pmeth
->verify_recover_init
;
716 *pverify_recover
= pmeth
->verify_recover
;
719 void EVP_PKEY_meth_get_signctx(EVP_PKEY_METHOD
*pmeth
,
720 int (**psignctx_init
) (EVP_PKEY_CTX
*ctx
,
722 int (**psignctx
) (EVP_PKEY_CTX
*ctx
,
728 *psignctx_init
= pmeth
->signctx_init
;
730 *psignctx
= pmeth
->signctx
;
733 void EVP_PKEY_meth_get_verifyctx(EVP_PKEY_METHOD
*pmeth
,
734 int (**pverifyctx_init
) (EVP_PKEY_CTX
*ctx
,
736 int (**pverifyctx
) (EVP_PKEY_CTX
*ctx
,
737 const unsigned char *sig
,
742 *pverifyctx_init
= pmeth
->verifyctx_init
;
744 *pverifyctx
= pmeth
->verifyctx
;
747 void EVP_PKEY_meth_get_encrypt(EVP_PKEY_METHOD
*pmeth
,
748 int (**pencrypt_init
) (EVP_PKEY_CTX
*ctx
),
749 int (**pencryptfn
) (EVP_PKEY_CTX
*ctx
,
752 const unsigned char *in
,
756 *pencrypt_init
= pmeth
->encrypt_init
;
758 *pencryptfn
= pmeth
->encrypt
;
761 void EVP_PKEY_meth_get_decrypt(EVP_PKEY_METHOD
*pmeth
,
762 int (**pdecrypt_init
) (EVP_PKEY_CTX
*ctx
),
763 int (**pdecrypt
) (EVP_PKEY_CTX
*ctx
,
766 const unsigned char *in
,
770 *pdecrypt_init
= pmeth
->decrypt_init
;
772 *pdecrypt
= pmeth
->decrypt
;
775 void EVP_PKEY_meth_get_derive(EVP_PKEY_METHOD
*pmeth
,
776 int (**pderive_init
) (EVP_PKEY_CTX
*ctx
),
777 int (**pderive
) (EVP_PKEY_CTX
*ctx
,
782 *pderive_init
= pmeth
->derive_init
;
784 *pderive
= pmeth
->derive
;
787 void EVP_PKEY_meth_get_ctrl(EVP_PKEY_METHOD
*pmeth
,
788 int (**pctrl
) (EVP_PKEY_CTX
*ctx
, int type
, int p1
,
790 int (**pctrl_str
) (EVP_PKEY_CTX
*ctx
,
795 *pctrl
= pmeth
->ctrl
;
797 *pctrl_str
= pmeth
->ctrl_str
;
800 void EVP_PKEY_meth_get_check(EVP_PKEY_METHOD
*pmeth
,
801 int (**pcheck
) (EVP_PKEY
*pkey
))
804 *pcheck
= pmeth
->check
;