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"
22 #include "internal/provider.h"
25 typedef int sk_cmp_fn_type(const char *const *a, const char *const *b);
27 static STACK_OF(EVP_PKEY_METHOD) *app_pkey_methods = NULL;
29 /* This array needs to be in order of NIDs */
30 static const EVP_PKEY_METHOD *standard_methods[] = {
31 #ifndef OPENSSL_NO_RSA
37 #ifndef OPENSSL_NO_DSA
44 #ifndef OPENSSL_NO_CMAC
47 #ifndef OPENSSL_NO_RSA
53 #ifndef OPENSSL_NO_SCRYPT
62 #ifndef OPENSSL_NO_POLY1305
65 #ifndef OPENSSL_NO_SIPHASH
72 #ifndef OPENSSL_NO_SM2
77 DECLARE_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, const EVP_PKEY_METHOD *,
80 static int pmeth_cmp(const EVP_PKEY_METHOD *const *a,
81 const EVP_PKEY_METHOD *const *b)
83 return ((*a)->pkey_id - (*b)->pkey_id);
86 IMPLEMENT_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, const EVP_PKEY_METHOD *,
89 const EVP_PKEY_METHOD *EVP_PKEY_meth_find(int type)
92 const EVP_PKEY_METHOD *t = &tmp, **ret;
94 if (app_pkey_methods) {
96 idx = sk_EVP_PKEY_METHOD_find(app_pkey_methods, &tmp);
98 return sk_EVP_PKEY_METHOD_value(app_pkey_methods, idx);
100 ret = OBJ_bsearch_pmeth(&t, standard_methods,
101 sizeof(standard_methods) /
102 sizeof(EVP_PKEY_METHOD *));
108 static EVP_PKEY_CTX *int_ctx_new(EVP_PKEY *pkey, ENGINE *e, int id)
111 const EVP_PKEY_METHOD *pmeth = NULL;
114 * When using providers, the context is bound to the algo implementation
117 if (pkey == NULL && e == NULL && id == -1)
120 /* TODO(3.0) Legacy code should be removed when all is provider based */
127 #ifndef OPENSSL_NO_ENGINE
128 if (e == NULL && pkey != NULL)
129 e = pkey->pmeth_engine != NULL ? pkey->pmeth_engine : pkey->engine;
130 /* Try to find an ENGINE which implements this method */
132 if (!ENGINE_init(e)) {
133 EVPerr(EVP_F_INT_CTX_NEW, ERR_R_ENGINE_LIB);
137 e = ENGINE_get_pkey_meth_engine(id);
141 * If an ENGINE handled this method look it up. Otherwise use internal
145 pmeth = ENGINE_get_pkey_meth(e, id);
148 pmeth = EVP_PKEY_meth_find(id);
151 #ifndef OPENSSL_NO_ENGINE
154 EVPerr(EVP_F_INT_CTX_NEW, EVP_R_UNSUPPORTED_ALGORITHM);
160 ret = OPENSSL_zalloc(sizeof(*ret));
162 #ifndef OPENSSL_NO_ENGINE
165 EVPerr(EVP_F_INT_CTX_NEW, ERR_R_MALLOC_FAILURE);
170 ret->operation = EVP_PKEY_OP_UNDEFINED;
173 EVP_PKEY_up_ref(pkey);
175 if (pmeth != NULL && pmeth->init != NULL) {
176 if (pmeth->init(ret) <= 0) {
178 EVP_PKEY_CTX_free(ret);
186 EVP_PKEY_METHOD *EVP_PKEY_meth_new(int id, int flags)
188 EVP_PKEY_METHOD *pmeth;
190 pmeth = OPENSSL_zalloc(sizeof(*pmeth));
192 EVPerr(EVP_F_EVP_PKEY_METH_NEW, ERR_R_MALLOC_FAILURE);
197 pmeth->flags = flags | EVP_PKEY_FLAG_DYNAMIC;
201 void EVP_PKEY_meth_get0_info(int *ppkey_id, int *pflags,
202 const EVP_PKEY_METHOD *meth)
205 *ppkey_id = meth->pkey_id;
207 *pflags = meth->flags;
210 void EVP_PKEY_meth_copy(EVP_PKEY_METHOD *dst, const EVP_PKEY_METHOD *src)
213 dst->init = src->init;
214 dst->copy = src->copy;
215 dst->cleanup = src->cleanup;
217 dst->paramgen_init = src->paramgen_init;
218 dst->paramgen = src->paramgen;
220 dst->keygen_init = src->keygen_init;
221 dst->keygen = src->keygen;
223 dst->sign_init = src->sign_init;
224 dst->sign = src->sign;
226 dst->verify_init = src->verify_init;
227 dst->verify = src->verify;
229 dst->verify_recover_init = src->verify_recover_init;
230 dst->verify_recover = src->verify_recover;
232 dst->signctx_init = src->signctx_init;
233 dst->signctx = src->signctx;
235 dst->verifyctx_init = src->verifyctx_init;
236 dst->verifyctx = src->verifyctx;
238 dst->encrypt_init = src->encrypt_init;
239 dst->encrypt = src->encrypt;
241 dst->decrypt_init = src->decrypt_init;
242 dst->decrypt = src->decrypt;
244 dst->derive_init = src->derive_init;
245 dst->derive = src->derive;
247 dst->ctrl = src->ctrl;
248 dst->ctrl_str = src->ctrl_str;
250 dst->check = src->check;
253 void EVP_PKEY_meth_free(EVP_PKEY_METHOD *pmeth)
255 if (pmeth && (pmeth->flags & EVP_PKEY_FLAG_DYNAMIC))
259 EVP_PKEY_CTX *EVP_PKEY_CTX_new(EVP_PKEY *pkey, ENGINE *e)
261 return int_ctx_new(pkey, e, -1);
264 EVP_PKEY_CTX *EVP_PKEY_CTX_new_id(int id, ENGINE *e)
266 return int_ctx_new(NULL, e, id);
269 EVP_PKEY_CTX *EVP_PKEY_CTX_dup(const EVP_PKEY_CTX *pctx)
273 if (((pctx->pmeth == NULL) || (pctx->pmeth->copy == NULL))
274 && pctx->exchprovctx == NULL)
276 #ifndef OPENSSL_NO_ENGINE
277 /* Make sure it's safe to copy a pkey context using an ENGINE */
278 if (pctx->engine && !ENGINE_init(pctx->engine)) {
279 EVPerr(EVP_F_EVP_PKEY_CTX_DUP, ERR_R_ENGINE_LIB);
283 rctx = OPENSSL_zalloc(sizeof(*rctx));
285 EVPerr(EVP_F_EVP_PKEY_CTX_DUP, ERR_R_MALLOC_FAILURE);
289 if (pctx->pkey != NULL)
290 EVP_PKEY_up_ref(pctx->pkey);
291 rctx->pkey = pctx->pkey;
292 rctx->operation = pctx->operation;
294 if (pctx->exchprovctx != NULL) {
295 if (!ossl_assert(pctx->exchange != NULL))
297 rctx->exchange = pctx->exchange;
298 if (!EVP_KEYEXCH_up_ref(rctx->exchange)) {
302 rctx->exchprovctx = pctx->exchange->dupctx(pctx->exchprovctx);
303 if (rctx->exchprovctx == NULL) {
304 EVP_KEYEXCH_free(rctx->exchange);
311 rctx->pmeth = pctx->pmeth;
312 #ifndef OPENSSL_NO_ENGINE
313 rctx->engine = pctx->engine;
317 EVP_PKEY_up_ref(pctx->peerkey);
318 rctx->peerkey = pctx->peerkey;
320 if (pctx->pmeth->copy(rctx, pctx) > 0)
324 EVP_PKEY_CTX_free(rctx);
329 int EVP_PKEY_meth_add0(const EVP_PKEY_METHOD *pmeth)
331 if (app_pkey_methods == NULL) {
332 app_pkey_methods = sk_EVP_PKEY_METHOD_new(pmeth_cmp);
333 if (app_pkey_methods == NULL){
334 EVPerr(EVP_F_EVP_PKEY_METH_ADD0, ERR_R_MALLOC_FAILURE);
338 if (!sk_EVP_PKEY_METHOD_push(app_pkey_methods, pmeth)) {
339 EVPerr(EVP_F_EVP_PKEY_METH_ADD0, ERR_R_MALLOC_FAILURE);
342 sk_EVP_PKEY_METHOD_sort(app_pkey_methods);
346 void evp_app_cleanup_int(void)
348 if (app_pkey_methods != NULL)
349 sk_EVP_PKEY_METHOD_pop_free(app_pkey_methods, EVP_PKEY_meth_free);
352 int EVP_PKEY_meth_remove(const EVP_PKEY_METHOD *pmeth)
354 const EVP_PKEY_METHOD *ret;
356 ret = sk_EVP_PKEY_METHOD_delete_ptr(app_pkey_methods, pmeth);
358 return ret == NULL ? 0 : 1;
361 size_t EVP_PKEY_meth_get_count(void)
363 size_t rv = OSSL_NELEM(standard_methods);
365 if (app_pkey_methods)
366 rv += sk_EVP_PKEY_METHOD_num(app_pkey_methods);
370 const EVP_PKEY_METHOD *EVP_PKEY_meth_get0(size_t idx)
372 if (idx < OSSL_NELEM(standard_methods))
373 return standard_methods[idx];
374 if (app_pkey_methods == NULL)
376 idx -= OSSL_NELEM(standard_methods);
377 if (idx >= (size_t)sk_EVP_PKEY_METHOD_num(app_pkey_methods))
379 return sk_EVP_PKEY_METHOD_value(app_pkey_methods, idx);
382 void EVP_PKEY_CTX_free(EVP_PKEY_CTX *ctx)
386 if (ctx->pmeth && ctx->pmeth->cleanup)
387 ctx->pmeth->cleanup(ctx);
389 if (ctx->exchprovctx != NULL && ctx->exchange != NULL)
390 ctx->exchange->freectx(ctx->exchprovctx);
392 EVP_KEYEXCH_free(ctx->exchange);
394 if (ctx->sigprovctx != NULL && ctx->signature != NULL)
395 ctx->signature->freectx(ctx->sigprovctx);
397 EVP_SIGNATURE_free(ctx->signature);
399 EVP_PKEY_free(ctx->pkey);
400 EVP_PKEY_free(ctx->peerkey);
401 #ifndef OPENSSL_NO_ENGINE
402 ENGINE_finish(ctx->engine);
407 int EVP_PKEY_CTX_set_params(EVP_PKEY_CTX *ctx, OSSL_PARAM *params)
409 if (ctx->exchprovctx != NULL && ctx->exchange != NULL)
410 return ctx->exchange->set_params(ctx->exchprovctx, params);
411 if (ctx->sigprovctx != NULL && ctx->signature != NULL)
412 return ctx->signature->set_params(ctx->sigprovctx, params);
416 #ifndef OPENSSL_NO_DH
417 int EVP_PKEY_CTX_set_dh_pad(EVP_PKEY_CTX *ctx, int pad)
419 OSSL_PARAM dh_pad_params[2];
420 unsigned int upad = pad;
422 /* TODO(3.0): Remove this eventually when no more legacy */
423 if (ctx->exchprovctx == NULL)
424 return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DH, EVP_PKEY_OP_DERIVE,
425 EVP_PKEY_CTRL_DH_PAD, pad, NULL);
427 dh_pad_params[0] = OSSL_PARAM_construct_uint(OSSL_EXCHANGE_PARAM_PAD, &upad);
428 dh_pad_params[1] = OSSL_PARAM_construct_end();
430 return EVP_PKEY_CTX_set_params(ctx, dh_pad_params);
434 int EVP_PKEY_CTX_set_signature_md(EVP_PKEY_CTX *ctx, const EVP_MD *md)
436 OSSL_PARAM sig_md_params[3];
440 /* TODO(3.0): Remove this eventually when no more legacy */
441 if (ctx->sigprovctx == NULL)
442 return EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_TYPE_SIG,
443 EVP_PKEY_CTRL_MD, 0, (void *)(md));
448 mdsize = EVP_MD_size(md);
449 name = EVP_MD_name(md);
450 sig_md_params[0] = OSSL_PARAM_construct_utf8_string(
451 OSSL_SIGNATURE_PARAM_DIGEST,
453 * Cast away the const. This is read only so should
458 sig_md_params[1] = OSSL_PARAM_construct_size_t(OSSL_SIGNATURE_PARAM_DIGEST_SIZE,
460 sig_md_params[2] = OSSL_PARAM_construct_end();
462 return EVP_PKEY_CTX_set_params(ctx, sig_md_params);
466 static int legacy_ctrl_to_param(EVP_PKEY_CTX *ctx, int keytype, int optype,
467 int cmd, int p1, void *p2)
470 #ifndef OPENSSL_NO_DH
471 case EVP_PKEY_CTRL_DH_PAD:
472 return EVP_PKEY_CTX_set_dh_pad(ctx, p1);
474 case EVP_PKEY_CTRL_MD:
475 return EVP_PKEY_CTX_set_signature_md(ctx, p2);
480 int EVP_PKEY_CTX_ctrl(EVP_PKEY_CTX *ctx, int keytype, int optype,
481 int cmd, int p1, void *p2)
486 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_COMMAND_NOT_SUPPORTED);
490 if (ctx->exchprovctx != NULL || ctx->sigprovctx != NULL)
491 return legacy_ctrl_to_param(ctx, keytype, optype, cmd, p1, p2);
493 if (ctx->pmeth == NULL || ctx->pmeth->ctrl == NULL) {
494 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_COMMAND_NOT_SUPPORTED);
497 if ((keytype != -1) && (ctx->pmeth->pkey_id != keytype))
500 /* Skip the operation checks since this is called in a very early stage */
501 if (ctx->pmeth->digest_custom != NULL)
504 if (ctx->operation == EVP_PKEY_OP_UNDEFINED) {
505 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_NO_OPERATION_SET);
509 if ((optype != -1) && !(ctx->operation & optype)) {
510 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_INVALID_OPERATION);
515 ret = ctx->pmeth->ctrl(ctx, cmd, p1, p2);
518 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_COMMAND_NOT_SUPPORTED);
523 int EVP_PKEY_CTX_ctrl_uint64(EVP_PKEY_CTX *ctx, int keytype, int optype,
524 int cmd, uint64_t value)
526 return EVP_PKEY_CTX_ctrl(ctx, keytype, optype, cmd, 0, &value);
529 static int legacy_ctrl_str_to_param(EVP_PKEY_CTX *ctx, const char *name,
532 #ifndef OPENSSL_NO_DH
533 if (strcmp(name, "dh_pad") == 0) {
537 return EVP_PKEY_CTX_set_dh_pad(ctx, pad);
540 if (strcmp(name, "digest") == 0) {
543 = EVP_MD_fetch(ossl_provider_library_context(ctx->signature->prov),
547 ret = EVP_PKEY_CTX_set_signature_md(ctx, md);
548 EVP_MD_meth_free(md);
555 int EVP_PKEY_CTX_ctrl_str(EVP_PKEY_CTX *ctx,
556 const char *name, const char *value)
559 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL_STR, EVP_R_COMMAND_NOT_SUPPORTED);
563 if (ctx->exchprovctx != NULL || ctx->sigprovctx != NULL)
564 return legacy_ctrl_str_to_param(ctx, name, value);
566 if (!ctx || !ctx->pmeth || !ctx->pmeth->ctrl_str) {
567 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL_STR, EVP_R_COMMAND_NOT_SUPPORTED);
570 if (strcmp(name, "digest") == 0)
571 return EVP_PKEY_CTX_md(ctx, EVP_PKEY_OP_TYPE_SIG, EVP_PKEY_CTRL_MD,
573 return ctx->pmeth->ctrl_str(ctx, name, value);
576 /* Utility functions to send a string of hex string to a ctrl */
578 int EVP_PKEY_CTX_str2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *str)
585 return ctx->pmeth->ctrl(ctx, cmd, len, (void *)str);
588 int EVP_PKEY_CTX_hex2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *hex)
594 bin = OPENSSL_hexstr2buf(hex, &binlen);
597 if (binlen <= INT_MAX)
598 rv = ctx->pmeth->ctrl(ctx, cmd, binlen, bin);
603 /* Pass a message digest to a ctrl */
604 int EVP_PKEY_CTX_md(EVP_PKEY_CTX *ctx, int optype, int cmd, const char *md)
608 if (md == NULL || (m = EVP_get_digestbyname(md)) == NULL) {
609 EVPerr(EVP_F_EVP_PKEY_CTX_MD, EVP_R_INVALID_DIGEST);
612 return EVP_PKEY_CTX_ctrl(ctx, -1, optype, cmd, 0, (void *)m);
615 int EVP_PKEY_CTX_get_operation(EVP_PKEY_CTX *ctx)
617 return ctx->operation;
620 void EVP_PKEY_CTX_set0_keygen_info(EVP_PKEY_CTX *ctx, int *dat, int datlen)
622 ctx->keygen_info = dat;
623 ctx->keygen_info_count = datlen;
626 void EVP_PKEY_CTX_set_data(EVP_PKEY_CTX *ctx, void *data)
631 void *EVP_PKEY_CTX_get_data(const EVP_PKEY_CTX *ctx)
636 EVP_PKEY *EVP_PKEY_CTX_get0_pkey(EVP_PKEY_CTX *ctx)
641 EVP_PKEY *EVP_PKEY_CTX_get0_peerkey(EVP_PKEY_CTX *ctx)
646 void EVP_PKEY_CTX_set_app_data(EVP_PKEY_CTX *ctx, void *data)
648 ctx->app_data = data;
651 void *EVP_PKEY_CTX_get_app_data(EVP_PKEY_CTX *ctx)
653 return ctx->app_data;
656 void EVP_PKEY_meth_set_init(EVP_PKEY_METHOD *pmeth,
657 int (*init) (EVP_PKEY_CTX *ctx))
662 void EVP_PKEY_meth_set_copy(EVP_PKEY_METHOD *pmeth,
663 int (*copy) (EVP_PKEY_CTX *dst,
664 const EVP_PKEY_CTX *src))
669 void EVP_PKEY_meth_set_cleanup(EVP_PKEY_METHOD *pmeth,
670 void (*cleanup) (EVP_PKEY_CTX *ctx))
672 pmeth->cleanup = cleanup;
675 void EVP_PKEY_meth_set_paramgen(EVP_PKEY_METHOD *pmeth,
676 int (*paramgen_init) (EVP_PKEY_CTX *ctx),
677 int (*paramgen) (EVP_PKEY_CTX *ctx,
680 pmeth->paramgen_init = paramgen_init;
681 pmeth->paramgen = paramgen;
684 void EVP_PKEY_meth_set_keygen(EVP_PKEY_METHOD *pmeth,
685 int (*keygen_init) (EVP_PKEY_CTX *ctx),
686 int (*keygen) (EVP_PKEY_CTX *ctx,
689 pmeth->keygen_init = keygen_init;
690 pmeth->keygen = keygen;
693 void EVP_PKEY_meth_set_sign(EVP_PKEY_METHOD *pmeth,
694 int (*sign_init) (EVP_PKEY_CTX *ctx),
695 int (*sign) (EVP_PKEY_CTX *ctx,
696 unsigned char *sig, size_t *siglen,
697 const unsigned char *tbs,
700 pmeth->sign_init = sign_init;
704 void EVP_PKEY_meth_set_verify(EVP_PKEY_METHOD *pmeth,
705 int (*verify_init) (EVP_PKEY_CTX *ctx),
706 int (*verify) (EVP_PKEY_CTX *ctx,
707 const unsigned char *sig,
709 const unsigned char *tbs,
712 pmeth->verify_init = verify_init;
713 pmeth->verify = verify;
716 void EVP_PKEY_meth_set_verify_recover(EVP_PKEY_METHOD *pmeth,
717 int (*verify_recover_init) (EVP_PKEY_CTX
719 int (*verify_recover) (EVP_PKEY_CTX
728 pmeth->verify_recover_init = verify_recover_init;
729 pmeth->verify_recover = verify_recover;
732 void EVP_PKEY_meth_set_signctx(EVP_PKEY_METHOD *pmeth,
733 int (*signctx_init) (EVP_PKEY_CTX *ctx,
735 int (*signctx) (EVP_PKEY_CTX *ctx,
740 pmeth->signctx_init = signctx_init;
741 pmeth->signctx = signctx;
744 void EVP_PKEY_meth_set_verifyctx(EVP_PKEY_METHOD *pmeth,
745 int (*verifyctx_init) (EVP_PKEY_CTX *ctx,
747 int (*verifyctx) (EVP_PKEY_CTX *ctx,
748 const unsigned char *sig,
752 pmeth->verifyctx_init = verifyctx_init;
753 pmeth->verifyctx = verifyctx;
756 void EVP_PKEY_meth_set_encrypt(EVP_PKEY_METHOD *pmeth,
757 int (*encrypt_init) (EVP_PKEY_CTX *ctx),
758 int (*encryptfn) (EVP_PKEY_CTX *ctx,
761 const unsigned char *in,
764 pmeth->encrypt_init = encrypt_init;
765 pmeth->encrypt = encryptfn;
768 void EVP_PKEY_meth_set_decrypt(EVP_PKEY_METHOD *pmeth,
769 int (*decrypt_init) (EVP_PKEY_CTX *ctx),
770 int (*decrypt) (EVP_PKEY_CTX *ctx,
773 const unsigned char *in,
776 pmeth->decrypt_init = decrypt_init;
777 pmeth->decrypt = decrypt;
780 void EVP_PKEY_meth_set_derive(EVP_PKEY_METHOD *pmeth,
781 int (*derive_init) (EVP_PKEY_CTX *ctx),
782 int (*derive) (EVP_PKEY_CTX *ctx,
786 pmeth->derive_init = derive_init;
787 pmeth->derive = derive;
790 void EVP_PKEY_meth_set_ctrl(EVP_PKEY_METHOD *pmeth,
791 int (*ctrl) (EVP_PKEY_CTX *ctx, int type, int p1,
793 int (*ctrl_str) (EVP_PKEY_CTX *ctx,
798 pmeth->ctrl_str = ctrl_str;
801 void EVP_PKEY_meth_set_check(EVP_PKEY_METHOD *pmeth,
802 int (*check) (EVP_PKEY *pkey))
804 pmeth->check = check;
807 void EVP_PKEY_meth_set_public_check(EVP_PKEY_METHOD *pmeth,
808 int (*check) (EVP_PKEY *pkey))
810 pmeth->public_check = check;
813 void EVP_PKEY_meth_set_param_check(EVP_PKEY_METHOD *pmeth,
814 int (*check) (EVP_PKEY *pkey))
816 pmeth->param_check = check;
819 void EVP_PKEY_meth_set_digest_custom(EVP_PKEY_METHOD *pmeth,
820 int (*digest_custom) (EVP_PKEY_CTX *ctx,
823 pmeth->digest_custom = digest_custom;
826 void EVP_PKEY_meth_get_init(const EVP_PKEY_METHOD *pmeth,
827 int (**pinit) (EVP_PKEY_CTX *ctx))
829 *pinit = pmeth->init;
832 void EVP_PKEY_meth_get_copy(const EVP_PKEY_METHOD *pmeth,
833 int (**pcopy) (EVP_PKEY_CTX *dst,
834 const EVP_PKEY_CTX *src))
836 *pcopy = pmeth->copy;
839 void EVP_PKEY_meth_get_cleanup(const EVP_PKEY_METHOD *pmeth,
840 void (**pcleanup) (EVP_PKEY_CTX *ctx))
842 *pcleanup = pmeth->cleanup;
845 void EVP_PKEY_meth_get_paramgen(const EVP_PKEY_METHOD *pmeth,
846 int (**pparamgen_init) (EVP_PKEY_CTX *ctx),
847 int (**pparamgen) (EVP_PKEY_CTX *ctx,
851 *pparamgen_init = pmeth->paramgen_init;
853 *pparamgen = pmeth->paramgen;
856 void EVP_PKEY_meth_get_keygen(const EVP_PKEY_METHOD *pmeth,
857 int (**pkeygen_init) (EVP_PKEY_CTX *ctx),
858 int (**pkeygen) (EVP_PKEY_CTX *ctx,
862 *pkeygen_init = pmeth->keygen_init;
864 *pkeygen = pmeth->keygen;
867 void EVP_PKEY_meth_get_sign(const EVP_PKEY_METHOD *pmeth,
868 int (**psign_init) (EVP_PKEY_CTX *ctx),
869 int (**psign) (EVP_PKEY_CTX *ctx,
870 unsigned char *sig, size_t *siglen,
871 const unsigned char *tbs,
875 *psign_init = pmeth->sign_init;
877 *psign = pmeth->sign;
880 void EVP_PKEY_meth_get_verify(const EVP_PKEY_METHOD *pmeth,
881 int (**pverify_init) (EVP_PKEY_CTX *ctx),
882 int (**pverify) (EVP_PKEY_CTX *ctx,
883 const unsigned char *sig,
885 const unsigned char *tbs,
889 *pverify_init = pmeth->verify_init;
891 *pverify = pmeth->verify;
894 void EVP_PKEY_meth_get_verify_recover(const EVP_PKEY_METHOD *pmeth,
895 int (**pverify_recover_init) (EVP_PKEY_CTX
897 int (**pverify_recover) (EVP_PKEY_CTX
906 if (pverify_recover_init)
907 *pverify_recover_init = pmeth->verify_recover_init;
909 *pverify_recover = pmeth->verify_recover;
912 void EVP_PKEY_meth_get_signctx(const EVP_PKEY_METHOD *pmeth,
913 int (**psignctx_init) (EVP_PKEY_CTX *ctx,
915 int (**psignctx) (EVP_PKEY_CTX *ctx,
921 *psignctx_init = pmeth->signctx_init;
923 *psignctx = pmeth->signctx;
926 void EVP_PKEY_meth_get_verifyctx(const EVP_PKEY_METHOD *pmeth,
927 int (**pverifyctx_init) (EVP_PKEY_CTX *ctx,
929 int (**pverifyctx) (EVP_PKEY_CTX *ctx,
930 const unsigned char *sig,
935 *pverifyctx_init = pmeth->verifyctx_init;
937 *pverifyctx = pmeth->verifyctx;
940 void EVP_PKEY_meth_get_encrypt(const EVP_PKEY_METHOD *pmeth,
941 int (**pencrypt_init) (EVP_PKEY_CTX *ctx),
942 int (**pencryptfn) (EVP_PKEY_CTX *ctx,
945 const unsigned char *in,
949 *pencrypt_init = pmeth->encrypt_init;
951 *pencryptfn = pmeth->encrypt;
954 void EVP_PKEY_meth_get_decrypt(const EVP_PKEY_METHOD *pmeth,
955 int (**pdecrypt_init) (EVP_PKEY_CTX *ctx),
956 int (**pdecrypt) (EVP_PKEY_CTX *ctx,
959 const unsigned char *in,
963 *pdecrypt_init = pmeth->decrypt_init;
965 *pdecrypt = pmeth->decrypt;
968 void EVP_PKEY_meth_get_derive(const EVP_PKEY_METHOD *pmeth,
969 int (**pderive_init) (EVP_PKEY_CTX *ctx),
970 int (**pderive) (EVP_PKEY_CTX *ctx,
975 *pderive_init = pmeth->derive_init;
977 *pderive = pmeth->derive;
980 void EVP_PKEY_meth_get_ctrl(const EVP_PKEY_METHOD *pmeth,
981 int (**pctrl) (EVP_PKEY_CTX *ctx, int type, int p1,
983 int (**pctrl_str) (EVP_PKEY_CTX *ctx,
988 *pctrl = pmeth->ctrl;
990 *pctrl_str = pmeth->ctrl_str;
993 void EVP_PKEY_meth_get_check(const EVP_PKEY_METHOD *pmeth,
994 int (**pcheck) (EVP_PKEY *pkey))
997 *pcheck = pmeth->check;
1000 void EVP_PKEY_meth_get_public_check(const EVP_PKEY_METHOD *pmeth,
1001 int (**pcheck) (EVP_PKEY *pkey))
1004 *pcheck = pmeth->public_check;
1007 void EVP_PKEY_meth_get_param_check(const EVP_PKEY_METHOD *pmeth,
1008 int (**pcheck) (EVP_PKEY *pkey))
1011 *pcheck = pmeth->param_check;
1014 void EVP_PKEY_meth_get_digest_custom(EVP_PKEY_METHOD *pmeth,
1015 int (**pdigest_custom) (EVP_PKEY_CTX *ctx,
1018 if (pdigest_custom != NULL)
1019 *pdigest_custom = pmeth->digest_custom;