2 * Copyright 2006-2018 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
57 #ifndef OPENSSL_NO_POLY1305
60 #ifndef OPENSSL_NO_SIPHASH
69 DECLARE_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD
*, const EVP_PKEY_METHOD
*,
72 static int pmeth_cmp(const EVP_PKEY_METHOD
*const *a
,
73 const EVP_PKEY_METHOD
*const *b
)
75 return ((*a
)->pkey_id
- (*b
)->pkey_id
);
78 IMPLEMENT_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD
*, const EVP_PKEY_METHOD
*,
81 const EVP_PKEY_METHOD
*EVP_PKEY_meth_find(int type
)
84 const EVP_PKEY_METHOD
*t
= &tmp
, **ret
;
86 if (app_pkey_methods
) {
88 idx
= sk_EVP_PKEY_METHOD_find(app_pkey_methods
, &tmp
);
90 return sk_EVP_PKEY_METHOD_value(app_pkey_methods
, idx
);
92 ret
= OBJ_bsearch_pmeth(&t
, standard_methods
,
93 sizeof(standard_methods
) /
94 sizeof(EVP_PKEY_METHOD
*));
100 static EVP_PKEY_CTX
*int_ctx_new(EVP_PKEY
*pkey
, ENGINE
*e
, int id
)
103 const EVP_PKEY_METHOD
*pmeth
;
105 if (!pkey
|| !pkey
->ameth
)
107 id
= pkey
->ameth
->pkey_id
;
109 #ifndef OPENSSL_NO_ENGINE
110 if (e
== NULL
&& pkey
!= NULL
)
111 e
= pkey
->pmeth_engine
!= NULL
? pkey
->pmeth_engine
: pkey
->engine
;
112 /* Try to find an ENGINE which implements this method */
114 if (!ENGINE_init(e
)) {
115 EVPerr(EVP_F_INT_CTX_NEW
, ERR_R_ENGINE_LIB
);
119 e
= ENGINE_get_pkey_meth_engine(id
);
123 * If an ENGINE handled this method look it up. Otherwise use internal
128 pmeth
= ENGINE_get_pkey_meth(e
, id
);
131 pmeth
= EVP_PKEY_meth_find(id
);
134 #ifndef OPENSSL_NO_ENGINE
137 EVPerr(EVP_F_INT_CTX_NEW
, EVP_R_UNSUPPORTED_ALGORITHM
);
141 ret
= OPENSSL_zalloc(sizeof(*ret
));
143 #ifndef OPENSSL_NO_ENGINE
146 EVPerr(EVP_F_INT_CTX_NEW
, ERR_R_MALLOC_FAILURE
);
151 ret
->operation
= EVP_PKEY_OP_UNDEFINED
;
154 EVP_PKEY_up_ref(pkey
);
157 if (pmeth
->init(ret
) <= 0) {
159 EVP_PKEY_CTX_free(ret
);
167 EVP_PKEY_METHOD
*EVP_PKEY_meth_new(int id
, int flags
)
169 EVP_PKEY_METHOD
*pmeth
;
171 pmeth
= OPENSSL_zalloc(sizeof(*pmeth
));
176 pmeth
->flags
= flags
| EVP_PKEY_FLAG_DYNAMIC
;
180 void EVP_PKEY_meth_get0_info(int *ppkey_id
, int *pflags
,
181 const EVP_PKEY_METHOD
*meth
)
184 *ppkey_id
= meth
->pkey_id
;
186 *pflags
= meth
->flags
;
189 void EVP_PKEY_meth_copy(EVP_PKEY_METHOD
*dst
, const EVP_PKEY_METHOD
*src
)
192 dst
->init
= src
->init
;
193 dst
->copy
= src
->copy
;
194 dst
->cleanup
= src
->cleanup
;
196 dst
->paramgen_init
= src
->paramgen_init
;
197 dst
->paramgen
= src
->paramgen
;
199 dst
->keygen_init
= src
->keygen_init
;
200 dst
->keygen
= src
->keygen
;
202 dst
->sign_init
= src
->sign_init
;
203 dst
->sign
= src
->sign
;
205 dst
->verify_init
= src
->verify_init
;
206 dst
->verify
= src
->verify
;
208 dst
->verify_recover_init
= src
->verify_recover_init
;
209 dst
->verify_recover
= src
->verify_recover
;
211 dst
->signctx_init
= src
->signctx_init
;
212 dst
->signctx
= src
->signctx
;
214 dst
->verifyctx_init
= src
->verifyctx_init
;
215 dst
->verifyctx
= src
->verifyctx
;
217 dst
->encrypt_init
= src
->encrypt_init
;
218 dst
->encrypt
= src
->encrypt
;
220 dst
->decrypt_init
= src
->decrypt_init
;
221 dst
->decrypt
= src
->decrypt
;
223 dst
->derive_init
= src
->derive_init
;
224 dst
->derive
= src
->derive
;
226 dst
->ctrl
= src
->ctrl
;
227 dst
->ctrl_str
= src
->ctrl_str
;
229 dst
->check
= src
->check
;
232 void EVP_PKEY_meth_free(EVP_PKEY_METHOD
*pmeth
)
234 if (pmeth
&& (pmeth
->flags
& EVP_PKEY_FLAG_DYNAMIC
))
238 EVP_PKEY_CTX
*EVP_PKEY_CTX_new(EVP_PKEY
*pkey
, ENGINE
*e
)
240 return int_ctx_new(pkey
, e
, -1);
243 EVP_PKEY_CTX
*EVP_PKEY_CTX_new_id(int id
, ENGINE
*e
)
245 return int_ctx_new(NULL
, e
, id
);
248 EVP_PKEY_CTX
*EVP_PKEY_CTX_dup(EVP_PKEY_CTX
*pctx
)
251 if (!pctx
->pmeth
|| !pctx
->pmeth
->copy
)
253 #ifndef OPENSSL_NO_ENGINE
254 /* Make sure it's safe to copy a pkey context using an ENGINE */
255 if (pctx
->engine
&& !ENGINE_init(pctx
->engine
)) {
256 EVPerr(EVP_F_EVP_PKEY_CTX_DUP
, ERR_R_ENGINE_LIB
);
260 rctx
= OPENSSL_malloc(sizeof(*rctx
));
264 rctx
->pmeth
= pctx
->pmeth
;
265 #ifndef OPENSSL_NO_ENGINE
266 rctx
->engine
= pctx
->engine
;
270 EVP_PKEY_up_ref(pctx
->pkey
);
272 rctx
->pkey
= pctx
->pkey
;
275 EVP_PKEY_up_ref(pctx
->peerkey
);
277 rctx
->peerkey
= pctx
->peerkey
;
280 rctx
->app_data
= NULL
;
281 rctx
->operation
= pctx
->operation
;
283 if (pctx
->pmeth
->copy(rctx
, pctx
) > 0)
287 EVP_PKEY_CTX_free(rctx
);
292 int EVP_PKEY_meth_add0(const EVP_PKEY_METHOD
*pmeth
)
294 if (app_pkey_methods
== NULL
) {
295 app_pkey_methods
= sk_EVP_PKEY_METHOD_new(pmeth_cmp
);
296 if (app_pkey_methods
== NULL
)
299 if (!sk_EVP_PKEY_METHOD_push(app_pkey_methods
, pmeth
))
301 sk_EVP_PKEY_METHOD_sort(app_pkey_methods
);
305 void evp_app_cleanup_int(void)
307 if (app_pkey_methods
!= NULL
)
308 sk_EVP_PKEY_METHOD_pop_free(app_pkey_methods
, EVP_PKEY_meth_free
);
311 int EVP_PKEY_meth_remove(const EVP_PKEY_METHOD
*pmeth
)
313 const EVP_PKEY_METHOD
*ret
;
315 ret
= sk_EVP_PKEY_METHOD_delete_ptr(app_pkey_methods
, pmeth
);
317 return ret
== NULL
? 0 : 1;
320 size_t EVP_PKEY_meth_get_count(void)
322 size_t rv
= OSSL_NELEM(standard_methods
);
324 if (app_pkey_methods
)
325 rv
+= sk_EVP_PKEY_METHOD_num(app_pkey_methods
);
329 const EVP_PKEY_METHOD
*EVP_PKEY_meth_get0(size_t idx
)
331 if (idx
< OSSL_NELEM(standard_methods
))
332 return standard_methods
[idx
];
333 if (app_pkey_methods
== NULL
)
335 idx
-= OSSL_NELEM(standard_methods
);
336 if (idx
>= (size_t)sk_EVP_PKEY_METHOD_num(app_pkey_methods
))
338 return sk_EVP_PKEY_METHOD_value(app_pkey_methods
, idx
);
341 void EVP_PKEY_CTX_free(EVP_PKEY_CTX
*ctx
)
345 if (ctx
->pmeth
&& ctx
->pmeth
->cleanup
)
346 ctx
->pmeth
->cleanup(ctx
);
347 EVP_PKEY_free(ctx
->pkey
);
348 EVP_PKEY_free(ctx
->peerkey
);
349 #ifndef OPENSSL_NO_ENGINE
350 ENGINE_finish(ctx
->engine
);
355 int EVP_PKEY_CTX_ctrl(EVP_PKEY_CTX
*ctx
, int keytype
, int optype
,
356 int cmd
, int p1
, void *p2
)
359 if (!ctx
|| !ctx
->pmeth
|| !ctx
->pmeth
->ctrl
) {
360 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL
, EVP_R_COMMAND_NOT_SUPPORTED
);
363 if ((keytype
!= -1) && (ctx
->pmeth
->pkey_id
!= keytype
))
366 if (ctx
->operation
== EVP_PKEY_OP_UNDEFINED
) {
367 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL
, EVP_R_NO_OPERATION_SET
);
371 if ((optype
!= -1) && !(ctx
->operation
& optype
)) {
372 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL
, EVP_R_INVALID_OPERATION
);
376 ret
= ctx
->pmeth
->ctrl(ctx
, cmd
, p1
, p2
);
379 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL
, EVP_R_COMMAND_NOT_SUPPORTED
);
385 int EVP_PKEY_CTX_ctrl_uint64(EVP_PKEY_CTX
*ctx
, int keytype
, int optype
,
386 int cmd
, uint64_t value
)
388 return EVP_PKEY_CTX_ctrl(ctx
, keytype
, optype
, cmd
, 0, &value
);
391 int EVP_PKEY_CTX_ctrl_str(EVP_PKEY_CTX
*ctx
,
392 const char *name
, const char *value
)
394 if (!ctx
|| !ctx
->pmeth
|| !ctx
->pmeth
->ctrl_str
) {
395 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL_STR
, EVP_R_COMMAND_NOT_SUPPORTED
);
398 if (strcmp(name
, "digest") == 0)
399 return EVP_PKEY_CTX_md(ctx
, EVP_PKEY_OP_TYPE_SIG
, EVP_PKEY_CTRL_MD
,
401 return ctx
->pmeth
->ctrl_str(ctx
, name
, value
);
404 /* Utility functions to send a string of hex string to a ctrl */
406 int EVP_PKEY_CTX_str2ctrl(EVP_PKEY_CTX
*ctx
, int cmd
, const char *str
)
413 return ctx
->pmeth
->ctrl(ctx
, cmd
, len
, (void *)str
);
416 int EVP_PKEY_CTX_hex2ctrl(EVP_PKEY_CTX
*ctx
, int cmd
, const char *hex
)
422 bin
= OPENSSL_hexstr2buf(hex
, &binlen
);
425 if (binlen
<= INT_MAX
)
426 rv
= ctx
->pmeth
->ctrl(ctx
, cmd
, binlen
, bin
);
431 /* Pass a message digest to a ctrl */
432 int EVP_PKEY_CTX_md(EVP_PKEY_CTX
*ctx
, int optype
, int cmd
, const char *md
)
436 if (md
== NULL
|| (m
= EVP_get_digestbyname(md
)) == NULL
) {
437 EVPerr(EVP_F_EVP_PKEY_CTX_MD
, EVP_R_INVALID_DIGEST
);
440 return EVP_PKEY_CTX_ctrl(ctx
, -1, optype
, cmd
, 0, (void *)m
);
443 int EVP_PKEY_CTX_get_operation(EVP_PKEY_CTX
*ctx
)
445 return ctx
->operation
;
448 void EVP_PKEY_CTX_set0_keygen_info(EVP_PKEY_CTX
*ctx
, int *dat
, int datlen
)
450 ctx
->keygen_info
= dat
;
451 ctx
->keygen_info_count
= datlen
;
454 void EVP_PKEY_CTX_set_data(EVP_PKEY_CTX
*ctx
, void *data
)
459 void *EVP_PKEY_CTX_get_data(EVP_PKEY_CTX
*ctx
)
464 EVP_PKEY
*EVP_PKEY_CTX_get0_pkey(EVP_PKEY_CTX
*ctx
)
469 EVP_PKEY
*EVP_PKEY_CTX_get0_peerkey(EVP_PKEY_CTX
*ctx
)
474 void EVP_PKEY_CTX_set_app_data(EVP_PKEY_CTX
*ctx
, void *data
)
476 ctx
->app_data
= data
;
479 void *EVP_PKEY_CTX_get_app_data(EVP_PKEY_CTX
*ctx
)
481 return ctx
->app_data
;
484 void EVP_PKEY_meth_set_init(EVP_PKEY_METHOD
*pmeth
,
485 int (*init
) (EVP_PKEY_CTX
*ctx
))
490 void EVP_PKEY_meth_set_copy(EVP_PKEY_METHOD
*pmeth
,
491 int (*copy
) (EVP_PKEY_CTX
*dst
,
497 void EVP_PKEY_meth_set_cleanup(EVP_PKEY_METHOD
*pmeth
,
498 void (*cleanup
) (EVP_PKEY_CTX
*ctx
))
500 pmeth
->cleanup
= cleanup
;
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
,
508 pmeth
->paramgen_init
= paramgen_init
;
509 pmeth
->paramgen
= paramgen
;
512 void EVP_PKEY_meth_set_keygen(EVP_PKEY_METHOD
*pmeth
,
513 int (*keygen_init
) (EVP_PKEY_CTX
*ctx
),
514 int (*keygen
) (EVP_PKEY_CTX
*ctx
,
517 pmeth
->keygen_init
= keygen_init
;
518 pmeth
->keygen
= keygen
;
521 void EVP_PKEY_meth_set_sign(EVP_PKEY_METHOD
*pmeth
,
522 int (*sign_init
) (EVP_PKEY_CTX
*ctx
),
523 int (*sign
) (EVP_PKEY_CTX
*ctx
,
524 unsigned char *sig
, size_t *siglen
,
525 const unsigned char *tbs
,
528 pmeth
->sign_init
= sign_init
;
532 void EVP_PKEY_meth_set_verify(EVP_PKEY_METHOD
*pmeth
,
533 int (*verify_init
) (EVP_PKEY_CTX
*ctx
),
534 int (*verify
) (EVP_PKEY_CTX
*ctx
,
535 const unsigned char *sig
,
537 const unsigned char *tbs
,
540 pmeth
->verify_init
= verify_init
;
541 pmeth
->verify
= verify
;
544 void EVP_PKEY_meth_set_verify_recover(EVP_PKEY_METHOD
*pmeth
,
545 int (*verify_recover_init
) (EVP_PKEY_CTX
547 int (*verify_recover
) (EVP_PKEY_CTX
556 pmeth
->verify_recover_init
= verify_recover_init
;
557 pmeth
->verify_recover
= verify_recover
;
560 void EVP_PKEY_meth_set_signctx(EVP_PKEY_METHOD
*pmeth
,
561 int (*signctx_init
) (EVP_PKEY_CTX
*ctx
,
563 int (*signctx
) (EVP_PKEY_CTX
*ctx
,
568 pmeth
->signctx_init
= signctx_init
;
569 pmeth
->signctx
= signctx
;
572 void EVP_PKEY_meth_set_verifyctx(EVP_PKEY_METHOD
*pmeth
,
573 int (*verifyctx_init
) (EVP_PKEY_CTX
*ctx
,
575 int (*verifyctx
) (EVP_PKEY_CTX
*ctx
,
576 const unsigned char *sig
,
580 pmeth
->verifyctx_init
= verifyctx_init
;
581 pmeth
->verifyctx
= verifyctx
;
584 void EVP_PKEY_meth_set_encrypt(EVP_PKEY_METHOD
*pmeth
,
585 int (*encrypt_init
) (EVP_PKEY_CTX
*ctx
),
586 int (*encryptfn
) (EVP_PKEY_CTX
*ctx
,
589 const unsigned char *in
,
592 pmeth
->encrypt_init
= encrypt_init
;
593 pmeth
->encrypt
= encryptfn
;
596 void EVP_PKEY_meth_set_decrypt(EVP_PKEY_METHOD
*pmeth
,
597 int (*decrypt_init
) (EVP_PKEY_CTX
*ctx
),
598 int (*decrypt
) (EVP_PKEY_CTX
*ctx
,
601 const unsigned char *in
,
604 pmeth
->decrypt_init
= decrypt_init
;
605 pmeth
->decrypt
= decrypt
;
608 void EVP_PKEY_meth_set_derive(EVP_PKEY_METHOD
*pmeth
,
609 int (*derive_init
) (EVP_PKEY_CTX
*ctx
),
610 int (*derive
) (EVP_PKEY_CTX
*ctx
,
614 pmeth
->derive_init
= derive_init
;
615 pmeth
->derive
= derive
;
618 void EVP_PKEY_meth_set_ctrl(EVP_PKEY_METHOD
*pmeth
,
619 int (*ctrl
) (EVP_PKEY_CTX
*ctx
, int type
, int p1
,
621 int (*ctrl_str
) (EVP_PKEY_CTX
*ctx
,
626 pmeth
->ctrl_str
= ctrl_str
;
629 void EVP_PKEY_meth_set_check(EVP_PKEY_METHOD
*pmeth
,
630 int (*check
) (EVP_PKEY
*pkey
))
632 pmeth
->check
= check
;
635 void EVP_PKEY_meth_set_public_check(EVP_PKEY_METHOD
*pmeth
,
636 int (*check
) (EVP_PKEY
*pkey
))
638 pmeth
->public_check
= check
;
641 void EVP_PKEY_meth_set_param_check(EVP_PKEY_METHOD
*pmeth
,
642 int (*check
) (EVP_PKEY
*pkey
))
644 pmeth
->param_check
= check
;
647 void EVP_PKEY_meth_get_init(const EVP_PKEY_METHOD
*pmeth
,
648 int (**pinit
) (EVP_PKEY_CTX
*ctx
))
650 *pinit
= pmeth
->init
;
653 void EVP_PKEY_meth_get_copy(const EVP_PKEY_METHOD
*pmeth
,
654 int (**pcopy
) (EVP_PKEY_CTX
*dst
,
657 *pcopy
= pmeth
->copy
;
660 void EVP_PKEY_meth_get_cleanup(const EVP_PKEY_METHOD
*pmeth
,
661 void (**pcleanup
) (EVP_PKEY_CTX
*ctx
))
663 *pcleanup
= pmeth
->cleanup
;
666 void EVP_PKEY_meth_get_paramgen(const EVP_PKEY_METHOD
*pmeth
,
667 int (**pparamgen_init
) (EVP_PKEY_CTX
*ctx
),
668 int (**pparamgen
) (EVP_PKEY_CTX
*ctx
,
672 *pparamgen_init
= pmeth
->paramgen_init
;
674 *pparamgen
= pmeth
->paramgen
;
677 void EVP_PKEY_meth_get_keygen(const EVP_PKEY_METHOD
*pmeth
,
678 int (**pkeygen_init
) (EVP_PKEY_CTX
*ctx
),
679 int (**pkeygen
) (EVP_PKEY_CTX
*ctx
,
683 *pkeygen_init
= pmeth
->keygen_init
;
685 *pkeygen
= pmeth
->keygen
;
688 void EVP_PKEY_meth_get_sign(const EVP_PKEY_METHOD
*pmeth
,
689 int (**psign_init
) (EVP_PKEY_CTX
*ctx
),
690 int (**psign
) (EVP_PKEY_CTX
*ctx
,
691 unsigned char *sig
, size_t *siglen
,
692 const unsigned char *tbs
,
696 *psign_init
= pmeth
->sign_init
;
698 *psign
= pmeth
->sign
;
701 void EVP_PKEY_meth_get_verify(const EVP_PKEY_METHOD
*pmeth
,
702 int (**pverify_init
) (EVP_PKEY_CTX
*ctx
),
703 int (**pverify
) (EVP_PKEY_CTX
*ctx
,
704 const unsigned char *sig
,
706 const unsigned char *tbs
,
710 *pverify_init
= pmeth
->verify_init
;
712 *pverify
= pmeth
->verify
;
715 void EVP_PKEY_meth_get_verify_recover(const EVP_PKEY_METHOD
*pmeth
,
716 int (**pverify_recover_init
) (EVP_PKEY_CTX
718 int (**pverify_recover
) (EVP_PKEY_CTX
727 if (pverify_recover_init
)
728 *pverify_recover_init
= pmeth
->verify_recover_init
;
730 *pverify_recover
= pmeth
->verify_recover
;
733 void EVP_PKEY_meth_get_signctx(const EVP_PKEY_METHOD
*pmeth
,
734 int (**psignctx_init
) (EVP_PKEY_CTX
*ctx
,
736 int (**psignctx
) (EVP_PKEY_CTX
*ctx
,
742 *psignctx_init
= pmeth
->signctx_init
;
744 *psignctx
= pmeth
->signctx
;
747 void EVP_PKEY_meth_get_verifyctx(const EVP_PKEY_METHOD
*pmeth
,
748 int (**pverifyctx_init
) (EVP_PKEY_CTX
*ctx
,
750 int (**pverifyctx
) (EVP_PKEY_CTX
*ctx
,
751 const unsigned char *sig
,
756 *pverifyctx_init
= pmeth
->verifyctx_init
;
758 *pverifyctx
= pmeth
->verifyctx
;
761 void EVP_PKEY_meth_get_encrypt(const EVP_PKEY_METHOD
*pmeth
,
762 int (**pencrypt_init
) (EVP_PKEY_CTX
*ctx
),
763 int (**pencryptfn
) (EVP_PKEY_CTX
*ctx
,
766 const unsigned char *in
,
770 *pencrypt_init
= pmeth
->encrypt_init
;
772 *pencryptfn
= pmeth
->encrypt
;
775 void EVP_PKEY_meth_get_decrypt(const EVP_PKEY_METHOD
*pmeth
,
776 int (**pdecrypt_init
) (EVP_PKEY_CTX
*ctx
),
777 int (**pdecrypt
) (EVP_PKEY_CTX
*ctx
,
780 const unsigned char *in
,
784 *pdecrypt_init
= pmeth
->decrypt_init
;
786 *pdecrypt
= pmeth
->decrypt
;
789 void EVP_PKEY_meth_get_derive(const EVP_PKEY_METHOD
*pmeth
,
790 int (**pderive_init
) (EVP_PKEY_CTX
*ctx
),
791 int (**pderive
) (EVP_PKEY_CTX
*ctx
,
796 *pderive_init
= pmeth
->derive_init
;
798 *pderive
= pmeth
->derive
;
801 void EVP_PKEY_meth_get_ctrl(const EVP_PKEY_METHOD
*pmeth
,
802 int (**pctrl
) (EVP_PKEY_CTX
*ctx
, int type
, int p1
,
804 int (**pctrl_str
) (EVP_PKEY_CTX
*ctx
,
809 *pctrl
= pmeth
->ctrl
;
811 *pctrl_str
= pmeth
->ctrl_str
;
814 void EVP_PKEY_meth_get_check(const EVP_PKEY_METHOD
*pmeth
,
815 int (**pcheck
) (EVP_PKEY
*pkey
))
818 *pcheck
= pmeth
->check
;
821 void EVP_PKEY_meth_get_public_check(const EVP_PKEY_METHOD
*pmeth
,
822 int (**pcheck
) (EVP_PKEY
*pkey
))
825 *pcheck
= pmeth
->public_check
;
828 void EVP_PKEY_meth_get_param_check(const EVP_PKEY_METHOD
*pmeth
,
829 int (**pcheck
) (EVP_PKEY
*pkey
))
832 *pcheck
= pmeth
->param_check
;