3 * Copyright 2006-2018 The OpenSSL Project Authors. All Rights Reserved.
5 * Licensed under the Apache License 2.0 (the "License"). You may not use
6 * this file except in compliance with the License. You can obtain a copy
7 * in the file LICENSE in the source distribution or at
8 * https://www.openssl.org/source/license.html
13 #include <openssl/engine.h>
14 #include <openssl/evp.h>
15 #include <openssl/x509v3.h>
16 #include <openssl/core_names.h>
17 #include <openssl/dh.h>
18 #include "internal/cryptlib.h"
19 #include "internal/asn1_int.h"
20 #include "internal/evp_int.h"
21 #include "internal/numbers.h"
24 typedef int sk_cmp_fn_type(const char *const *a, const char *const *b);
26 static STACK_OF(EVP_PKEY_METHOD) *app_pkey_methods = NULL;
28 /* This array needs to be in order of NIDs */
29 static const EVP_PKEY_METHOD *standard_methods[] = {
30 #ifndef OPENSSL_NO_RSA
36 #ifndef OPENSSL_NO_DSA
43 #ifndef OPENSSL_NO_CMAC
46 #ifndef OPENSSL_NO_RSA
52 #ifndef OPENSSL_NO_SCRYPT
61 #ifndef OPENSSL_NO_POLY1305
64 #ifndef OPENSSL_NO_SIPHASH
71 #ifndef OPENSSL_NO_SM2
76 DECLARE_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, const EVP_PKEY_METHOD *,
79 static int pmeth_cmp(const EVP_PKEY_METHOD *const *a,
80 const EVP_PKEY_METHOD *const *b)
82 return ((*a)->pkey_id - (*b)->pkey_id);
85 IMPLEMENT_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, const EVP_PKEY_METHOD *,
88 const EVP_PKEY_METHOD *EVP_PKEY_meth_find(int type)
91 const EVP_PKEY_METHOD *t = &tmp, **ret;
93 if (app_pkey_methods) {
95 idx = sk_EVP_PKEY_METHOD_find(app_pkey_methods, &tmp);
97 return sk_EVP_PKEY_METHOD_value(app_pkey_methods, idx);
99 ret = OBJ_bsearch_pmeth(&t, standard_methods,
100 sizeof(standard_methods) /
101 sizeof(EVP_PKEY_METHOD *));
107 static EVP_PKEY_CTX *int_ctx_new(EVP_PKEY *pkey, ENGINE *e, int id)
110 const EVP_PKEY_METHOD *pmeth = NULL;
113 * When using providers, the context is bound to the algo implementation
116 if (pkey == NULL && e == NULL && id == -1)
119 /* TODO(3.0) Legacy code should be removed when all is provider based */
126 #ifndef OPENSSL_NO_ENGINE
127 if (e == NULL && pkey != NULL)
128 e = pkey->pmeth_engine != NULL ? pkey->pmeth_engine : pkey->engine;
129 /* Try to find an ENGINE which implements this method */
131 if (!ENGINE_init(e)) {
132 EVPerr(EVP_F_INT_CTX_NEW, ERR_R_ENGINE_LIB);
136 e = ENGINE_get_pkey_meth_engine(id);
140 * If an ENGINE handled this method look it up. Otherwise use internal
144 pmeth = ENGINE_get_pkey_meth(e, id);
147 pmeth = EVP_PKEY_meth_find(id);
150 #ifndef OPENSSL_NO_ENGINE
153 EVPerr(EVP_F_INT_CTX_NEW, EVP_R_UNSUPPORTED_ALGORITHM);
159 ret = OPENSSL_zalloc(sizeof(*ret));
161 #ifndef OPENSSL_NO_ENGINE
164 EVPerr(EVP_F_INT_CTX_NEW, ERR_R_MALLOC_FAILURE);
169 ret->operation = EVP_PKEY_OP_UNDEFINED;
172 EVP_PKEY_up_ref(pkey);
174 if (pmeth != NULL && pmeth->init != NULL) {
175 if (pmeth->init(ret) <= 0) {
177 EVP_PKEY_CTX_free(ret);
185 EVP_PKEY_METHOD *EVP_PKEY_meth_new(int id, int flags)
187 EVP_PKEY_METHOD *pmeth;
189 pmeth = OPENSSL_zalloc(sizeof(*pmeth));
191 EVPerr(EVP_F_EVP_PKEY_METH_NEW, ERR_R_MALLOC_FAILURE);
196 pmeth->flags = flags | EVP_PKEY_FLAG_DYNAMIC;
200 void EVP_PKEY_meth_get0_info(int *ppkey_id, int *pflags,
201 const EVP_PKEY_METHOD *meth)
204 *ppkey_id = meth->pkey_id;
206 *pflags = meth->flags;
209 void EVP_PKEY_meth_copy(EVP_PKEY_METHOD *dst, const EVP_PKEY_METHOD *src)
212 dst->init = src->init;
213 dst->copy = src->copy;
214 dst->cleanup = src->cleanup;
216 dst->paramgen_init = src->paramgen_init;
217 dst->paramgen = src->paramgen;
219 dst->keygen_init = src->keygen_init;
220 dst->keygen = src->keygen;
222 dst->sign_init = src->sign_init;
223 dst->sign = src->sign;
225 dst->verify_init = src->verify_init;
226 dst->verify = src->verify;
228 dst->verify_recover_init = src->verify_recover_init;
229 dst->verify_recover = src->verify_recover;
231 dst->signctx_init = src->signctx_init;
232 dst->signctx = src->signctx;
234 dst->verifyctx_init = src->verifyctx_init;
235 dst->verifyctx = src->verifyctx;
237 dst->encrypt_init = src->encrypt_init;
238 dst->encrypt = src->encrypt;
240 dst->decrypt_init = src->decrypt_init;
241 dst->decrypt = src->decrypt;
243 dst->derive_init = src->derive_init;
244 dst->derive = src->derive;
246 dst->ctrl = src->ctrl;
247 dst->ctrl_str = src->ctrl_str;
249 dst->check = src->check;
252 void EVP_PKEY_meth_free(EVP_PKEY_METHOD *pmeth)
254 if (pmeth && (pmeth->flags & EVP_PKEY_FLAG_DYNAMIC))
258 EVP_PKEY_CTX *EVP_PKEY_CTX_new(EVP_PKEY *pkey, ENGINE *e)
260 return int_ctx_new(pkey, e, -1);
263 EVP_PKEY_CTX *EVP_PKEY_CTX_new_id(int id, ENGINE *e)
265 return int_ctx_new(NULL, e, id);
268 EVP_PKEY_CTX *EVP_PKEY_CTX_dup(const EVP_PKEY_CTX *pctx)
272 if (((pctx->pmeth == NULL) || (pctx->pmeth->copy == NULL))
273 && pctx->exchprovctx == NULL)
275 #ifndef OPENSSL_NO_ENGINE
276 /* Make sure it's safe to copy a pkey context using an ENGINE */
277 if (pctx->engine && !ENGINE_init(pctx->engine)) {
278 EVPerr(EVP_F_EVP_PKEY_CTX_DUP, ERR_R_ENGINE_LIB);
282 rctx = OPENSSL_zalloc(sizeof(*rctx));
284 EVPerr(EVP_F_EVP_PKEY_CTX_DUP, ERR_R_MALLOC_FAILURE);
288 if (pctx->pkey != NULL)
289 EVP_PKEY_up_ref(pctx->pkey);
290 rctx->pkey = pctx->pkey;
291 rctx->operation = pctx->operation;
293 if (pctx->exchprovctx != NULL) {
294 if (!ossl_assert(pctx->exchange != NULL))
296 rctx->exchange = pctx->exchange;
297 if (!EVP_KEYEXCH_up_ref(rctx->exchange)) {
301 rctx->exchprovctx = pctx->exchange->dupctx(pctx->exchprovctx);
302 if (rctx->exchprovctx == NULL) {
303 EVP_KEYEXCH_free(rctx->exchange);
310 rctx->pmeth = pctx->pmeth;
311 #ifndef OPENSSL_NO_ENGINE
312 rctx->engine = pctx->engine;
316 EVP_PKEY_up_ref(pctx->peerkey);
317 rctx->peerkey = pctx->peerkey;
319 if (pctx->pmeth->copy(rctx, pctx) > 0)
323 EVP_PKEY_CTX_free(rctx);
328 int EVP_PKEY_meth_add0(const EVP_PKEY_METHOD *pmeth)
330 if (app_pkey_methods == NULL) {
331 app_pkey_methods = sk_EVP_PKEY_METHOD_new(pmeth_cmp);
332 if (app_pkey_methods == NULL){
333 EVPerr(EVP_F_EVP_PKEY_METH_ADD0, ERR_R_MALLOC_FAILURE);
337 if (!sk_EVP_PKEY_METHOD_push(app_pkey_methods, pmeth)) {
338 EVPerr(EVP_F_EVP_PKEY_METH_ADD0, ERR_R_MALLOC_FAILURE);
341 sk_EVP_PKEY_METHOD_sort(app_pkey_methods);
345 void evp_app_cleanup_int(void)
347 if (app_pkey_methods != NULL)
348 sk_EVP_PKEY_METHOD_pop_free(app_pkey_methods, EVP_PKEY_meth_free);
351 int EVP_PKEY_meth_remove(const EVP_PKEY_METHOD *pmeth)
353 const EVP_PKEY_METHOD *ret;
355 ret = sk_EVP_PKEY_METHOD_delete_ptr(app_pkey_methods, pmeth);
357 return ret == NULL ? 0 : 1;
360 size_t EVP_PKEY_meth_get_count(void)
362 size_t rv = OSSL_NELEM(standard_methods);
364 if (app_pkey_methods)
365 rv += sk_EVP_PKEY_METHOD_num(app_pkey_methods);
369 const EVP_PKEY_METHOD *EVP_PKEY_meth_get0(size_t idx)
371 if (idx < OSSL_NELEM(standard_methods))
372 return standard_methods[idx];
373 if (app_pkey_methods == NULL)
375 idx -= OSSL_NELEM(standard_methods);
376 if (idx >= (size_t)sk_EVP_PKEY_METHOD_num(app_pkey_methods))
378 return sk_EVP_PKEY_METHOD_value(app_pkey_methods, idx);
381 void EVP_PKEY_CTX_free(EVP_PKEY_CTX *ctx)
385 if (ctx->pmeth && ctx->pmeth->cleanup)
386 ctx->pmeth->cleanup(ctx);
388 if (ctx->exchprovctx != NULL && ctx->exchange != NULL)
389 ctx->exchange->freectx(ctx->exchprovctx);
391 EVP_KEYEXCH_free(ctx->exchange);
393 if (ctx->sigprovctx != NULL && ctx->signature != NULL)
394 ctx->signature->freectx(ctx->sigprovctx);
396 EVP_SIGNATURE_free(ctx->signature);
398 EVP_PKEY_free(ctx->pkey);
399 EVP_PKEY_free(ctx->peerkey);
400 #ifndef OPENSSL_NO_ENGINE
401 ENGINE_finish(ctx->engine);
406 int EVP_PKEY_CTX_set_params(EVP_PKEY_CTX *ctx, OSSL_PARAM *params)
408 if (ctx->exchprovctx != NULL && ctx->exchange != NULL)
409 return ctx->exchange->set_params(ctx->exchprovctx, params);
410 if (ctx->sigprovctx != NULL && ctx->signature != NULL)
411 return ctx->signature->set_params(ctx->sigprovctx, params);
415 #ifndef OPENSSL_NO_DH
416 int EVP_PKEY_CTX_set_dh_pad(EVP_PKEY_CTX *ctx, int pad)
418 OSSL_PARAM dh_pad_params[2];
419 unsigned int upad = pad;
421 /* TODO(3.0): Remove this eventually when no more legacy */
422 if (ctx->exchprovctx == NULL)
423 return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DH, EVP_PKEY_OP_DERIVE,
424 EVP_PKEY_CTRL_DH_PAD, pad, NULL);
426 dh_pad_params[0] = OSSL_PARAM_construct_uint(OSSL_EXCHANGE_PARAM_PAD, &upad);
427 dh_pad_params[1] = OSSL_PARAM_construct_end();
429 return EVP_PKEY_CTX_set_params(ctx, dh_pad_params);
433 static int legacy_ctrl_to_param(EVP_PKEY_CTX *ctx, int keytype, int optype,
434 int cmd, int p1, void *p2)
437 #ifndef OPENSSL_NO_DH
438 case EVP_PKEY_CTRL_DH_PAD:
439 return EVP_PKEY_CTX_set_dh_pad(ctx, p1);
445 int EVP_PKEY_CTX_ctrl(EVP_PKEY_CTX *ctx, int keytype, int optype,
446 int cmd, int p1, void *p2)
451 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_COMMAND_NOT_SUPPORTED);
455 if (ctx->exchprovctx != NULL)
456 return legacy_ctrl_to_param(ctx, keytype, optype, cmd, p1, p2);
458 if (ctx->pmeth == NULL || ctx->pmeth->ctrl == NULL) {
459 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_COMMAND_NOT_SUPPORTED);
462 if ((keytype != -1) && (ctx->pmeth->pkey_id != keytype))
465 /* Skip the operation checks since this is called in a very early stage */
466 if (ctx->pmeth->digest_custom != NULL)
469 if (ctx->operation == EVP_PKEY_OP_UNDEFINED) {
470 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_NO_OPERATION_SET);
474 if ((optype != -1) && !(ctx->operation & optype)) {
475 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_INVALID_OPERATION);
480 ret = ctx->pmeth->ctrl(ctx, cmd, p1, p2);
483 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_COMMAND_NOT_SUPPORTED);
488 int EVP_PKEY_CTX_ctrl_uint64(EVP_PKEY_CTX *ctx, int keytype, int optype,
489 int cmd, uint64_t value)
491 return EVP_PKEY_CTX_ctrl(ctx, keytype, optype, cmd, 0, &value);
494 static int legacy_ctrl_str_to_param(EVP_PKEY_CTX *ctx, const char *name,
497 #ifndef OPENSSL_NO_DH
498 if (strcmp(name, "dh_pad") == 0) {
502 return EVP_PKEY_CTX_set_dh_pad(ctx, pad);
508 int EVP_PKEY_CTX_ctrl_str(EVP_PKEY_CTX *ctx,
509 const char *name, const char *value)
512 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL_STR, EVP_R_COMMAND_NOT_SUPPORTED);
516 if (ctx->exchprovctx != NULL)
517 return legacy_ctrl_str_to_param(ctx, name, value);
519 if (!ctx || !ctx->pmeth || !ctx->pmeth->ctrl_str) {
520 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL_STR, EVP_R_COMMAND_NOT_SUPPORTED);
523 if (strcmp(name, "digest") == 0)
524 return EVP_PKEY_CTX_md(ctx, EVP_PKEY_OP_TYPE_SIG, EVP_PKEY_CTRL_MD,
526 return ctx->pmeth->ctrl_str(ctx, name, value);
529 /* Utility functions to send a string of hex string to a ctrl */
531 int EVP_PKEY_CTX_str2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *str)
538 return ctx->pmeth->ctrl(ctx, cmd, len, (void *)str);
541 int EVP_PKEY_CTX_hex2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *hex)
547 bin = OPENSSL_hexstr2buf(hex, &binlen);
550 if (binlen <= INT_MAX)
551 rv = ctx->pmeth->ctrl(ctx, cmd, binlen, bin);
556 /* Pass a message digest to a ctrl */
557 int EVP_PKEY_CTX_md(EVP_PKEY_CTX *ctx, int optype, int cmd, const char *md)
561 if (md == NULL || (m = EVP_get_digestbyname(md)) == NULL) {
562 EVPerr(EVP_F_EVP_PKEY_CTX_MD, EVP_R_INVALID_DIGEST);
565 return EVP_PKEY_CTX_ctrl(ctx, -1, optype, cmd, 0, (void *)m);
568 int EVP_PKEY_CTX_get_operation(EVP_PKEY_CTX *ctx)
570 return ctx->operation;
573 void EVP_PKEY_CTX_set0_keygen_info(EVP_PKEY_CTX *ctx, int *dat, int datlen)
575 ctx->keygen_info = dat;
576 ctx->keygen_info_count = datlen;
579 void EVP_PKEY_CTX_set_data(EVP_PKEY_CTX *ctx, void *data)
584 void *EVP_PKEY_CTX_get_data(const EVP_PKEY_CTX *ctx)
589 EVP_PKEY *EVP_PKEY_CTX_get0_pkey(EVP_PKEY_CTX *ctx)
594 EVP_PKEY *EVP_PKEY_CTX_get0_peerkey(EVP_PKEY_CTX *ctx)
599 void EVP_PKEY_CTX_set_app_data(EVP_PKEY_CTX *ctx, void *data)
601 ctx->app_data = data;
604 void *EVP_PKEY_CTX_get_app_data(EVP_PKEY_CTX *ctx)
606 return ctx->app_data;
609 void EVP_PKEY_meth_set_init(EVP_PKEY_METHOD *pmeth,
610 int (*init) (EVP_PKEY_CTX *ctx))
615 void EVP_PKEY_meth_set_copy(EVP_PKEY_METHOD *pmeth,
616 int (*copy) (EVP_PKEY_CTX *dst,
617 const EVP_PKEY_CTX *src))
622 void EVP_PKEY_meth_set_cleanup(EVP_PKEY_METHOD *pmeth,
623 void (*cleanup) (EVP_PKEY_CTX *ctx))
625 pmeth->cleanup = cleanup;
628 void EVP_PKEY_meth_set_paramgen(EVP_PKEY_METHOD *pmeth,
629 int (*paramgen_init) (EVP_PKEY_CTX *ctx),
630 int (*paramgen) (EVP_PKEY_CTX *ctx,
633 pmeth->paramgen_init = paramgen_init;
634 pmeth->paramgen = paramgen;
637 void EVP_PKEY_meth_set_keygen(EVP_PKEY_METHOD *pmeth,
638 int (*keygen_init) (EVP_PKEY_CTX *ctx),
639 int (*keygen) (EVP_PKEY_CTX *ctx,
642 pmeth->keygen_init = keygen_init;
643 pmeth->keygen = keygen;
646 void EVP_PKEY_meth_set_sign(EVP_PKEY_METHOD *pmeth,
647 int (*sign_init) (EVP_PKEY_CTX *ctx),
648 int (*sign) (EVP_PKEY_CTX *ctx,
649 unsigned char *sig, size_t *siglen,
650 const unsigned char *tbs,
653 pmeth->sign_init = sign_init;
657 void EVP_PKEY_meth_set_verify(EVP_PKEY_METHOD *pmeth,
658 int (*verify_init) (EVP_PKEY_CTX *ctx),
659 int (*verify) (EVP_PKEY_CTX *ctx,
660 const unsigned char *sig,
662 const unsigned char *tbs,
665 pmeth->verify_init = verify_init;
666 pmeth->verify = verify;
669 void EVP_PKEY_meth_set_verify_recover(EVP_PKEY_METHOD *pmeth,
670 int (*verify_recover_init) (EVP_PKEY_CTX
672 int (*verify_recover) (EVP_PKEY_CTX
681 pmeth->verify_recover_init = verify_recover_init;
682 pmeth->verify_recover = verify_recover;
685 void EVP_PKEY_meth_set_signctx(EVP_PKEY_METHOD *pmeth,
686 int (*signctx_init) (EVP_PKEY_CTX *ctx,
688 int (*signctx) (EVP_PKEY_CTX *ctx,
693 pmeth->signctx_init = signctx_init;
694 pmeth->signctx = signctx;
697 void EVP_PKEY_meth_set_verifyctx(EVP_PKEY_METHOD *pmeth,
698 int (*verifyctx_init) (EVP_PKEY_CTX *ctx,
700 int (*verifyctx) (EVP_PKEY_CTX *ctx,
701 const unsigned char *sig,
705 pmeth->verifyctx_init = verifyctx_init;
706 pmeth->verifyctx = verifyctx;
709 void EVP_PKEY_meth_set_encrypt(EVP_PKEY_METHOD *pmeth,
710 int (*encrypt_init) (EVP_PKEY_CTX *ctx),
711 int (*encryptfn) (EVP_PKEY_CTX *ctx,
714 const unsigned char *in,
717 pmeth->encrypt_init = encrypt_init;
718 pmeth->encrypt = encryptfn;
721 void EVP_PKEY_meth_set_decrypt(EVP_PKEY_METHOD *pmeth,
722 int (*decrypt_init) (EVP_PKEY_CTX *ctx),
723 int (*decrypt) (EVP_PKEY_CTX *ctx,
726 const unsigned char *in,
729 pmeth->decrypt_init = decrypt_init;
730 pmeth->decrypt = decrypt;
733 void EVP_PKEY_meth_set_derive(EVP_PKEY_METHOD *pmeth,
734 int (*derive_init) (EVP_PKEY_CTX *ctx),
735 int (*derive) (EVP_PKEY_CTX *ctx,
739 pmeth->derive_init = derive_init;
740 pmeth->derive = derive;
743 void EVP_PKEY_meth_set_ctrl(EVP_PKEY_METHOD *pmeth,
744 int (*ctrl) (EVP_PKEY_CTX *ctx, int type, int p1,
746 int (*ctrl_str) (EVP_PKEY_CTX *ctx,
751 pmeth->ctrl_str = ctrl_str;
754 void EVP_PKEY_meth_set_check(EVP_PKEY_METHOD *pmeth,
755 int (*check) (EVP_PKEY *pkey))
757 pmeth->check = check;
760 void EVP_PKEY_meth_set_public_check(EVP_PKEY_METHOD *pmeth,
761 int (*check) (EVP_PKEY *pkey))
763 pmeth->public_check = check;
766 void EVP_PKEY_meth_set_param_check(EVP_PKEY_METHOD *pmeth,
767 int (*check) (EVP_PKEY *pkey))
769 pmeth->param_check = check;
772 void EVP_PKEY_meth_set_digest_custom(EVP_PKEY_METHOD *pmeth,
773 int (*digest_custom) (EVP_PKEY_CTX *ctx,
776 pmeth->digest_custom = digest_custom;
779 void EVP_PKEY_meth_get_init(const EVP_PKEY_METHOD *pmeth,
780 int (**pinit) (EVP_PKEY_CTX *ctx))
782 *pinit = pmeth->init;
785 void EVP_PKEY_meth_get_copy(const EVP_PKEY_METHOD *pmeth,
786 int (**pcopy) (EVP_PKEY_CTX *dst,
787 const EVP_PKEY_CTX *src))
789 *pcopy = pmeth->copy;
792 void EVP_PKEY_meth_get_cleanup(const EVP_PKEY_METHOD *pmeth,
793 void (**pcleanup) (EVP_PKEY_CTX *ctx))
795 *pcleanup = pmeth->cleanup;
798 void EVP_PKEY_meth_get_paramgen(const EVP_PKEY_METHOD *pmeth,
799 int (**pparamgen_init) (EVP_PKEY_CTX *ctx),
800 int (**pparamgen) (EVP_PKEY_CTX *ctx,
804 *pparamgen_init = pmeth->paramgen_init;
806 *pparamgen = pmeth->paramgen;
809 void EVP_PKEY_meth_get_keygen(const EVP_PKEY_METHOD *pmeth,
810 int (**pkeygen_init) (EVP_PKEY_CTX *ctx),
811 int (**pkeygen) (EVP_PKEY_CTX *ctx,
815 *pkeygen_init = pmeth->keygen_init;
817 *pkeygen = pmeth->keygen;
820 void EVP_PKEY_meth_get_sign(const EVP_PKEY_METHOD *pmeth,
821 int (**psign_init) (EVP_PKEY_CTX *ctx),
822 int (**psign) (EVP_PKEY_CTX *ctx,
823 unsigned char *sig, size_t *siglen,
824 const unsigned char *tbs,
828 *psign_init = pmeth->sign_init;
830 *psign = pmeth->sign;
833 void EVP_PKEY_meth_get_verify(const EVP_PKEY_METHOD *pmeth,
834 int (**pverify_init) (EVP_PKEY_CTX *ctx),
835 int (**pverify) (EVP_PKEY_CTX *ctx,
836 const unsigned char *sig,
838 const unsigned char *tbs,
842 *pverify_init = pmeth->verify_init;
844 *pverify = pmeth->verify;
847 void EVP_PKEY_meth_get_verify_recover(const EVP_PKEY_METHOD *pmeth,
848 int (**pverify_recover_init) (EVP_PKEY_CTX
850 int (**pverify_recover) (EVP_PKEY_CTX
859 if (pverify_recover_init)
860 *pverify_recover_init = pmeth->verify_recover_init;
862 *pverify_recover = pmeth->verify_recover;
865 void EVP_PKEY_meth_get_signctx(const EVP_PKEY_METHOD *pmeth,
866 int (**psignctx_init) (EVP_PKEY_CTX *ctx,
868 int (**psignctx) (EVP_PKEY_CTX *ctx,
874 *psignctx_init = pmeth->signctx_init;
876 *psignctx = pmeth->signctx;
879 void EVP_PKEY_meth_get_verifyctx(const EVP_PKEY_METHOD *pmeth,
880 int (**pverifyctx_init) (EVP_PKEY_CTX *ctx,
882 int (**pverifyctx) (EVP_PKEY_CTX *ctx,
883 const unsigned char *sig,
888 *pverifyctx_init = pmeth->verifyctx_init;
890 *pverifyctx = pmeth->verifyctx;
893 void EVP_PKEY_meth_get_encrypt(const EVP_PKEY_METHOD *pmeth,
894 int (**pencrypt_init) (EVP_PKEY_CTX *ctx),
895 int (**pencryptfn) (EVP_PKEY_CTX *ctx,
898 const unsigned char *in,
902 *pencrypt_init = pmeth->encrypt_init;
904 *pencryptfn = pmeth->encrypt;
907 void EVP_PKEY_meth_get_decrypt(const EVP_PKEY_METHOD *pmeth,
908 int (**pdecrypt_init) (EVP_PKEY_CTX *ctx),
909 int (**pdecrypt) (EVP_PKEY_CTX *ctx,
912 const unsigned char *in,
916 *pdecrypt_init = pmeth->decrypt_init;
918 *pdecrypt = pmeth->decrypt;
921 void EVP_PKEY_meth_get_derive(const EVP_PKEY_METHOD *pmeth,
922 int (**pderive_init) (EVP_PKEY_CTX *ctx),
923 int (**pderive) (EVP_PKEY_CTX *ctx,
928 *pderive_init = pmeth->derive_init;
930 *pderive = pmeth->derive;
933 void EVP_PKEY_meth_get_ctrl(const EVP_PKEY_METHOD *pmeth,
934 int (**pctrl) (EVP_PKEY_CTX *ctx, int type, int p1,
936 int (**pctrl_str) (EVP_PKEY_CTX *ctx,
941 *pctrl = pmeth->ctrl;
943 *pctrl_str = pmeth->ctrl_str;
946 void EVP_PKEY_meth_get_check(const EVP_PKEY_METHOD *pmeth,
947 int (**pcheck) (EVP_PKEY *pkey))
950 *pcheck = pmeth->check;
953 void EVP_PKEY_meth_get_public_check(const EVP_PKEY_METHOD *pmeth,
954 int (**pcheck) (EVP_PKEY *pkey))
957 *pcheck = pmeth->public_check;
960 void EVP_PKEY_meth_get_param_check(const EVP_PKEY_METHOD *pmeth,
961 int (**pcheck) (EVP_PKEY *pkey))
964 *pcheck = pmeth->param_check;
967 void EVP_PKEY_meth_get_digest_custom(EVP_PKEY_METHOD *pmeth,
968 int (**pdigest_custom) (EVP_PKEY_CTX *ctx,
971 if (pdigest_custom != NULL)
972 *pdigest_custom = pmeth->digest_custom;