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 "crypto/asn1.h"
20 #include "crypto/evp.h"
21 #include "internal/numbers.h"
22 #include "internal/provider.h"
23 #include "evp_local.h"
25 typedef const EVP_PKEY_METHOD
*(*pmeth_fn
)(void);
26 typedef int sk_cmp_fn_type(const char *const *a
, const char *const *b
);
28 static STACK_OF(EVP_PKEY_METHOD
) *app_pkey_methods
= NULL
;
30 /* This array needs to be in order of NIDs */
31 static pmeth_fn standard_methods
[] = {
32 #ifndef OPENSSL_NO_RSA
38 #ifndef OPENSSL_NO_DSA
45 #ifndef OPENSSL_NO_CMAC
48 #ifndef OPENSSL_NO_RSA
54 #ifndef OPENSSL_NO_SCRYPT
63 #ifndef OPENSSL_NO_POLY1305
66 #ifndef OPENSSL_NO_SIPHASH
73 #ifndef OPENSSL_NO_SM2
78 DECLARE_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD
*, pmeth_fn
, pmeth_func
);
80 static int pmeth_func_cmp(const EVP_PKEY_METHOD
*const *a
, pmeth_fn
const *b
)
82 return ((*a
)->pkey_id
- ((**b
)())->pkey_id
);
85 IMPLEMENT_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD
*, pmeth_fn
, pmeth_func
);
87 static int pmeth_cmp(const EVP_PKEY_METHOD
*const *a
,
88 const EVP_PKEY_METHOD
*const *b
)
90 return ((*a
)->pkey_id
- (*b
)->pkey_id
);
93 const EVP_PKEY_METHOD
*EVP_PKEY_meth_find(int type
)
97 const EVP_PKEY_METHOD
*t
= &tmp
;
100 if (app_pkey_methods
) {
102 idx
= sk_EVP_PKEY_METHOD_find(app_pkey_methods
, &tmp
);
104 return sk_EVP_PKEY_METHOD_value(app_pkey_methods
, idx
);
106 ret
= OBJ_bsearch_pmeth_func(&t
, standard_methods
,
107 sizeof(standard_methods
) /
109 if (ret
== NULL
|| *ret
== NULL
)
114 static EVP_PKEY_CTX
*int_ctx_new(EVP_PKEY
*pkey
, ENGINE
*e
,
115 const char *name
, const char *propquery
,
119 const EVP_PKEY_METHOD
*pmeth
= NULL
;
122 * When using providers, the context is bound to the algo implementation
125 if (pkey
== NULL
&& e
== NULL
&& id
== -1)
128 /* TODO(3.0) Legacy code should be removed when all is provider based */
135 name
= OBJ_nid2sn(id
);
137 #ifndef OPENSSL_NO_ENGINE
138 if (e
== NULL
&& pkey
!= NULL
)
139 e
= pkey
->pmeth_engine
!= NULL
? pkey
->pmeth_engine
: pkey
->engine
;
140 /* Try to find an ENGINE which implements this method */
142 if (!ENGINE_init(e
)) {
143 EVPerr(EVP_F_INT_CTX_NEW
, ERR_R_ENGINE_LIB
);
147 e
= ENGINE_get_pkey_meth_engine(id
);
151 * If an ENGINE handled this method look it up. Otherwise use internal
155 pmeth
= ENGINE_get_pkey_meth(e
, id
);
158 pmeth
= EVP_PKEY_meth_find(id
);
161 #ifndef OPENSSL_NO_ENGINE
164 EVPerr(EVP_F_INT_CTX_NEW
, EVP_R_UNSUPPORTED_ALGORITHM
);
170 ret
= OPENSSL_zalloc(sizeof(*ret
));
172 #ifndef OPENSSL_NO_ENGINE
175 EVPerr(EVP_F_INT_CTX_NEW
, ERR_R_MALLOC_FAILURE
);
178 ret
->algorithm
= name
;
179 ret
->propquery
= propquery
;
182 ret
->operation
= EVP_PKEY_OP_UNDEFINED
;
185 EVP_PKEY_up_ref(pkey
);
187 if (pmeth
!= NULL
&& pmeth
->init
!= NULL
) {
188 if (pmeth
->init(ret
) <= 0) {
190 EVP_PKEY_CTX_free(ret
);
198 void evp_pkey_ctx_free_old_ops(EVP_PKEY_CTX
*ctx
)
200 if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx
)) {
201 if (ctx
->op
.kex
.exchprovctx
!= NULL
&& ctx
->op
.kex
.exchange
!= NULL
)
202 ctx
->op
.kex
.exchange
->freectx(ctx
->op
.kex
.exchprovctx
);
203 EVP_KEYEXCH_free(ctx
->op
.kex
.exchange
);
204 } else if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx
)) {
205 if (ctx
->op
.sig
.sigprovctx
!= NULL
&& ctx
->op
.sig
.signature
!= NULL
)
206 ctx
->op
.sig
.signature
->freectx(ctx
->op
.sig
.sigprovctx
);
207 EVP_SIGNATURE_free(ctx
->op
.sig
.signature
);
211 EVP_PKEY_METHOD
*EVP_PKEY_meth_new(int id
, int flags
)
213 EVP_PKEY_METHOD
*pmeth
;
215 pmeth
= OPENSSL_zalloc(sizeof(*pmeth
));
217 EVPerr(EVP_F_EVP_PKEY_METH_NEW
, ERR_R_MALLOC_FAILURE
);
222 pmeth
->flags
= flags
| EVP_PKEY_FLAG_DYNAMIC
;
226 void EVP_PKEY_meth_get0_info(int *ppkey_id
, int *pflags
,
227 const EVP_PKEY_METHOD
*meth
)
230 *ppkey_id
= meth
->pkey_id
;
232 *pflags
= meth
->flags
;
235 void EVP_PKEY_meth_copy(EVP_PKEY_METHOD
*dst
, const EVP_PKEY_METHOD
*src
)
238 dst
->init
= src
->init
;
239 dst
->copy
= src
->copy
;
240 dst
->cleanup
= src
->cleanup
;
242 dst
->paramgen_init
= src
->paramgen_init
;
243 dst
->paramgen
= src
->paramgen
;
245 dst
->keygen_init
= src
->keygen_init
;
246 dst
->keygen
= src
->keygen
;
248 dst
->sign_init
= src
->sign_init
;
249 dst
->sign
= src
->sign
;
251 dst
->verify_init
= src
->verify_init
;
252 dst
->verify
= src
->verify
;
254 dst
->verify_recover_init
= src
->verify_recover_init
;
255 dst
->verify_recover
= src
->verify_recover
;
257 dst
->signctx_init
= src
->signctx_init
;
258 dst
->signctx
= src
->signctx
;
260 dst
->verifyctx_init
= src
->verifyctx_init
;
261 dst
->verifyctx
= src
->verifyctx
;
263 dst
->encrypt_init
= src
->encrypt_init
;
264 dst
->encrypt
= src
->encrypt
;
266 dst
->decrypt_init
= src
->decrypt_init
;
267 dst
->decrypt
= src
->decrypt
;
269 dst
->derive_init
= src
->derive_init
;
270 dst
->derive
= src
->derive
;
272 dst
->ctrl
= src
->ctrl
;
273 dst
->ctrl_str
= src
->ctrl_str
;
275 dst
->check
= src
->check
;
278 void EVP_PKEY_meth_free(EVP_PKEY_METHOD
*pmeth
)
280 if (pmeth
&& (pmeth
->flags
& EVP_PKEY_FLAG_DYNAMIC
))
284 EVP_PKEY_CTX
*EVP_PKEY_CTX_new(EVP_PKEY
*pkey
, ENGINE
*e
)
286 return int_ctx_new(pkey
, e
, NULL
, NULL
, -1);
289 EVP_PKEY_CTX
*EVP_PKEY_CTX_new_id(int id
, ENGINE
*e
)
291 return int_ctx_new(NULL
, e
, NULL
, NULL
, id
);
294 EVP_PKEY_CTX
*EVP_PKEY_CTX_new_provided(const char *name
,
295 const char *propquery
)
297 return int_ctx_new(NULL
, NULL
, name
, propquery
, -1);
300 EVP_PKEY_CTX
*EVP_PKEY_CTX_dup(const EVP_PKEY_CTX
*pctx
)
304 if (((pctx
->pmeth
== NULL
) || (pctx
->pmeth
->copy
== NULL
))
305 && ((EVP_PKEY_CTX_IS_DERIVE_OP(pctx
)
306 && pctx
->op
.kex
.exchprovctx
== NULL
)
307 || (EVP_PKEY_CTX_IS_SIGNATURE_OP(pctx
)
308 && pctx
->op
.sig
.sigprovctx
== NULL
)))
310 #ifndef OPENSSL_NO_ENGINE
311 /* Make sure it's safe to copy a pkey context using an ENGINE */
312 if (pctx
->engine
&& !ENGINE_init(pctx
->engine
)) {
313 EVPerr(EVP_F_EVP_PKEY_CTX_DUP
, ERR_R_ENGINE_LIB
);
317 rctx
= OPENSSL_zalloc(sizeof(*rctx
));
319 EVPerr(EVP_F_EVP_PKEY_CTX_DUP
, ERR_R_MALLOC_FAILURE
);
323 if (pctx
->pkey
!= NULL
)
324 EVP_PKEY_up_ref(pctx
->pkey
);
325 rctx
->pkey
= pctx
->pkey
;
326 rctx
->operation
= pctx
->operation
;
327 rctx
->algorithm
= pctx
->algorithm
;
328 rctx
->propquery
= pctx
->propquery
;
330 if (EVP_PKEY_CTX_IS_DERIVE_OP(pctx
)) {
331 if (pctx
->op
.kex
.exchange
!= NULL
) {
332 rctx
->op
.kex
.exchange
= pctx
->op
.kex
.exchange
;
333 if (!EVP_KEYEXCH_up_ref(rctx
->op
.kex
.exchange
)) {
338 if (pctx
->op
.kex
.exchprovctx
!= NULL
) {
339 if (!ossl_assert(pctx
->op
.kex
.exchange
!= NULL
))
341 rctx
->op
.kex
.exchprovctx
342 = pctx
->op
.kex
.exchange
->dupctx(pctx
->op
.kex
.exchprovctx
);
343 if (rctx
->op
.kex
.exchprovctx
== NULL
) {
344 EVP_KEYEXCH_free(rctx
->op
.kex
.exchange
);
350 } else if (EVP_PKEY_CTX_IS_SIGNATURE_OP(pctx
)) {
351 if (pctx
->op
.sig
.signature
!= NULL
) {
352 rctx
->op
.sig
.signature
= pctx
->op
.sig
.signature
;
353 if (!EVP_SIGNATURE_up_ref(rctx
->op
.sig
.signature
)) {
358 if (pctx
->op
.sig
.sigprovctx
!= NULL
) {
359 if (!ossl_assert(pctx
->op
.sig
.signature
!= NULL
))
361 rctx
->op
.sig
.sigprovctx
362 = pctx
->op
.sig
.signature
->dupctx(pctx
->op
.sig
.sigprovctx
);
363 if (rctx
->op
.sig
.sigprovctx
== NULL
) {
364 EVP_SIGNATURE_free(rctx
->op
.sig
.signature
);
372 rctx
->pmeth
= pctx
->pmeth
;
373 #ifndef OPENSSL_NO_ENGINE
374 rctx
->engine
= pctx
->engine
;
378 EVP_PKEY_up_ref(pctx
->peerkey
);
379 rctx
->peerkey
= pctx
->peerkey
;
381 if (pctx
->pmeth
->copy(rctx
, pctx
) > 0)
385 EVP_PKEY_CTX_free(rctx
);
390 int EVP_PKEY_meth_add0(const EVP_PKEY_METHOD
*pmeth
)
392 if (app_pkey_methods
== NULL
) {
393 app_pkey_methods
= sk_EVP_PKEY_METHOD_new(pmeth_cmp
);
394 if (app_pkey_methods
== NULL
){
395 EVPerr(EVP_F_EVP_PKEY_METH_ADD0
, ERR_R_MALLOC_FAILURE
);
399 if (!sk_EVP_PKEY_METHOD_push(app_pkey_methods
, pmeth
)) {
400 EVPerr(EVP_F_EVP_PKEY_METH_ADD0
, ERR_R_MALLOC_FAILURE
);
403 sk_EVP_PKEY_METHOD_sort(app_pkey_methods
);
407 void evp_app_cleanup_int(void)
409 if (app_pkey_methods
!= NULL
)
410 sk_EVP_PKEY_METHOD_pop_free(app_pkey_methods
, EVP_PKEY_meth_free
);
413 int EVP_PKEY_meth_remove(const EVP_PKEY_METHOD
*pmeth
)
415 const EVP_PKEY_METHOD
*ret
;
417 ret
= sk_EVP_PKEY_METHOD_delete_ptr(app_pkey_methods
, pmeth
);
419 return ret
== NULL
? 0 : 1;
422 size_t EVP_PKEY_meth_get_count(void)
424 size_t rv
= OSSL_NELEM(standard_methods
);
426 if (app_pkey_methods
)
427 rv
+= sk_EVP_PKEY_METHOD_num(app_pkey_methods
);
431 const EVP_PKEY_METHOD
*EVP_PKEY_meth_get0(size_t idx
)
433 if (idx
< OSSL_NELEM(standard_methods
))
434 return (standard_methods
[idx
])();
435 if (app_pkey_methods
== NULL
)
437 idx
-= OSSL_NELEM(standard_methods
);
438 if (idx
>= (size_t)sk_EVP_PKEY_METHOD_num(app_pkey_methods
))
440 return sk_EVP_PKEY_METHOD_value(app_pkey_methods
, idx
);
443 void EVP_PKEY_CTX_free(EVP_PKEY_CTX
*ctx
)
447 if (ctx
->pmeth
&& ctx
->pmeth
->cleanup
)
448 ctx
->pmeth
->cleanup(ctx
);
450 evp_pkey_ctx_free_old_ops(ctx
);
452 EVP_PKEY_free(ctx
->pkey
);
453 EVP_PKEY_free(ctx
->peerkey
);
454 #ifndef OPENSSL_NO_ENGINE
455 ENGINE_finish(ctx
->engine
);
460 int EVP_PKEY_CTX_get_params(EVP_PKEY_CTX
*ctx
, OSSL_PARAM
*params
)
462 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx
)
463 && ctx
->op
.sig
.sigprovctx
!= NULL
464 && ctx
->op
.sig
.signature
!= NULL
465 && ctx
->op
.sig
.signature
->get_ctx_params
!= NULL
)
466 return ctx
->op
.sig
.signature
->get_ctx_params(ctx
->op
.sig
.sigprovctx
,
471 const OSSL_PARAM
*EVP_PKEY_CTX_gettable_params(EVP_PKEY_CTX
*ctx
)
473 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx
)
474 && ctx
->op
.sig
.signature
!= NULL
475 && ctx
->op
.sig
.signature
->gettable_ctx_params
!= NULL
)
476 return ctx
->op
.sig
.signature
->gettable_ctx_params();
481 int EVP_PKEY_CTX_set_params(EVP_PKEY_CTX
*ctx
, OSSL_PARAM
*params
)
483 if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx
)
484 && ctx
->op
.kex
.exchprovctx
!= NULL
485 && ctx
->op
.kex
.exchange
!= NULL
486 && ctx
->op
.kex
.exchange
->set_ctx_params
!= NULL
)
487 return ctx
->op
.kex
.exchange
->set_ctx_params(ctx
->op
.kex
.exchprovctx
,
489 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx
)
490 && ctx
->op
.sig
.sigprovctx
!= NULL
491 && ctx
->op
.sig
.signature
!= NULL
492 && ctx
->op
.sig
.signature
->set_ctx_params
!= NULL
)
493 return ctx
->op
.sig
.signature
->set_ctx_params(ctx
->op
.sig
.sigprovctx
,
498 const OSSL_PARAM
*EVP_PKEY_CTX_settable_params(EVP_PKEY_CTX
*ctx
)
500 if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx
)
501 && ctx
->op
.kex
.exchange
!= NULL
502 && ctx
->op
.kex
.exchange
->settable_ctx_params
!= NULL
)
503 return ctx
->op
.kex
.exchange
->settable_ctx_params();
504 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx
)
505 && ctx
->op
.sig
.signature
!= NULL
506 && ctx
->op
.sig
.signature
->settable_ctx_params
!= NULL
)
507 return ctx
->op
.sig
.signature
->settable_ctx_params();
512 #ifndef OPENSSL_NO_DH
513 int EVP_PKEY_CTX_set_dh_pad(EVP_PKEY_CTX
*ctx
, int pad
)
515 OSSL_PARAM dh_pad_params
[2];
516 unsigned int upad
= pad
;
518 /* We use EVP_PKEY_CTX_ctrl return values */
519 if (ctx
== NULL
|| !EVP_PKEY_CTX_IS_DERIVE_OP(ctx
)) {
520 ERR_raise(ERR_LIB_EVP
, EVP_R_COMMAND_NOT_SUPPORTED
);
524 /* TODO(3.0): Remove this eventually when no more legacy */
525 if (ctx
->op
.kex
.exchprovctx
== NULL
)
526 return EVP_PKEY_CTX_ctrl(ctx
, EVP_PKEY_DH
, EVP_PKEY_OP_DERIVE
,
527 EVP_PKEY_CTRL_DH_PAD
, pad
, NULL
);
529 dh_pad_params
[0] = OSSL_PARAM_construct_uint(OSSL_EXCHANGE_PARAM_PAD
, &upad
);
530 dh_pad_params
[1] = OSSL_PARAM_construct_end();
532 return EVP_PKEY_CTX_set_params(ctx
, dh_pad_params
);
536 int EVP_PKEY_CTX_get_signature_md(EVP_PKEY_CTX
*ctx
, const EVP_MD
**md
)
538 OSSL_PARAM sig_md_params
[3], *p
= sig_md_params
;
539 /* 80 should be big enough */
543 if (ctx
== NULL
|| !EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx
)) {
544 ERR_raise(ERR_LIB_EVP
, EVP_R_COMMAND_NOT_SUPPORTED
);
545 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
549 /* TODO(3.0): Remove this eventually when no more legacy */
550 if (ctx
->op
.sig
.sigprovctx
== NULL
)
551 return EVP_PKEY_CTX_ctrl(ctx
, -1, EVP_PKEY_OP_TYPE_SIG
,
552 EVP_PKEY_CTRL_GET_MD
, 0, (void *)(md
));
554 *p
++ = OSSL_PARAM_construct_utf8_string(OSSL_SIGNATURE_PARAM_DIGEST
,
557 *p
++ = OSSL_PARAM_construct_end();
559 if (!EVP_PKEY_CTX_get_params(ctx
, sig_md_params
))
562 tmp
= EVP_get_digestbyname(name
);
571 int EVP_PKEY_CTX_set_signature_md(EVP_PKEY_CTX
*ctx
, const EVP_MD
*md
)
573 OSSL_PARAM sig_md_params
[3], *p
= sig_md_params
;
577 if (ctx
== NULL
|| !EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx
)) {
578 ERR_raise(ERR_LIB_EVP
, EVP_R_COMMAND_NOT_SUPPORTED
);
579 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
583 /* TODO(3.0): Remove this eventually when no more legacy */
584 if (ctx
->op
.sig
.sigprovctx
== NULL
)
585 return EVP_PKEY_CTX_ctrl(ctx
, -1, EVP_PKEY_OP_TYPE_SIG
,
586 EVP_PKEY_CTRL_MD
, 0, (void *)(md
));
592 mdsize
= EVP_MD_size(md
);
593 name
= EVP_MD_name(md
);
596 *p
++ = OSSL_PARAM_construct_utf8_string(OSSL_SIGNATURE_PARAM_DIGEST
,
598 * Cast away the const. This is read
599 * only so should be safe
603 *p
++ = OSSL_PARAM_construct_size_t(OSSL_SIGNATURE_PARAM_DIGEST_SIZE
,
605 *p
++ = OSSL_PARAM_construct_end();
607 return EVP_PKEY_CTX_set_params(ctx
, sig_md_params
);
610 static int legacy_ctrl_to_param(EVP_PKEY_CTX
*ctx
, int keytype
, int optype
,
611 int cmd
, int p1
, void *p2
)
614 #ifndef OPENSSL_NO_DH
615 case EVP_PKEY_CTRL_DH_PAD
:
616 return EVP_PKEY_CTX_set_dh_pad(ctx
, p1
);
618 case EVP_PKEY_CTRL_MD
:
619 return EVP_PKEY_CTX_set_signature_md(ctx
, p2
);
620 case EVP_PKEY_CTRL_GET_MD
:
621 return EVP_PKEY_CTX_get_signature_md(ctx
, p2
);
626 int EVP_PKEY_CTX_ctrl(EVP_PKEY_CTX
*ctx
, int keytype
, int optype
,
627 int cmd
, int p1
, void *p2
)
632 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL
, EVP_R_COMMAND_NOT_SUPPORTED
);
636 if ((EVP_PKEY_CTX_IS_DERIVE_OP(ctx
) && ctx
->op
.kex
.exchprovctx
!= NULL
)
637 || (EVP_PKEY_CTX_IS_DERIVE_OP(ctx
)
638 && ctx
->op
.sig
.sigprovctx
!= NULL
))
639 return legacy_ctrl_to_param(ctx
, keytype
, optype
, cmd
, p1
, p2
);
641 if (ctx
->pmeth
== NULL
|| ctx
->pmeth
->ctrl
== NULL
) {
642 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL
, EVP_R_COMMAND_NOT_SUPPORTED
);
645 if ((keytype
!= -1) && (ctx
->pmeth
->pkey_id
!= keytype
))
648 /* Skip the operation checks since this is called in a very early stage */
649 if (ctx
->pmeth
->digest_custom
!= NULL
)
652 if (ctx
->operation
== EVP_PKEY_OP_UNDEFINED
) {
653 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL
, EVP_R_NO_OPERATION_SET
);
657 if ((optype
!= -1) && !(ctx
->operation
& optype
)) {
658 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL
, EVP_R_INVALID_OPERATION
);
663 ret
= ctx
->pmeth
->ctrl(ctx
, cmd
, p1
, p2
);
666 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL
, EVP_R_COMMAND_NOT_SUPPORTED
);
671 int EVP_PKEY_CTX_ctrl_uint64(EVP_PKEY_CTX
*ctx
, int keytype
, int optype
,
672 int cmd
, uint64_t value
)
674 return EVP_PKEY_CTX_ctrl(ctx
, keytype
, optype
, cmd
, 0, &value
);
677 static int legacy_ctrl_str_to_param(EVP_PKEY_CTX
*ctx
, const char *name
,
680 #ifndef OPENSSL_NO_DH
681 if (strcmp(name
, "dh_pad") == 0) {
685 return EVP_PKEY_CTX_set_dh_pad(ctx
, pad
);
688 if (strcmp(name
, "digest") == 0) {
692 if (!EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx
) || ctx
->op
.sig
.signature
== NULL
)
694 md
= EVP_MD_fetch(ossl_provider_library_context(ctx
->op
.sig
.signature
->prov
),
698 ret
= EVP_PKEY_CTX_set_signature_md(ctx
, md
);
699 EVP_MD_meth_free(md
);
706 int EVP_PKEY_CTX_ctrl_str(EVP_PKEY_CTX
*ctx
,
707 const char *name
, const char *value
)
710 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL_STR
, EVP_R_COMMAND_NOT_SUPPORTED
);
714 if ((EVP_PKEY_CTX_IS_DERIVE_OP(ctx
) && ctx
->op
.kex
.exchprovctx
!= NULL
)
715 || (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx
)
716 && ctx
->op
.sig
.sigprovctx
!= NULL
))
717 return legacy_ctrl_str_to_param(ctx
, name
, value
);
719 if (!ctx
|| !ctx
->pmeth
|| !ctx
->pmeth
->ctrl_str
) {
720 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL_STR
, EVP_R_COMMAND_NOT_SUPPORTED
);
723 if (strcmp(name
, "digest") == 0)
724 return EVP_PKEY_CTX_md(ctx
, EVP_PKEY_OP_TYPE_SIG
, EVP_PKEY_CTRL_MD
,
726 return ctx
->pmeth
->ctrl_str(ctx
, name
, value
);
729 /* Utility functions to send a string of hex string to a ctrl */
731 int EVP_PKEY_CTX_str2ctrl(EVP_PKEY_CTX
*ctx
, int cmd
, const char *str
)
738 return ctx
->pmeth
->ctrl(ctx
, cmd
, len
, (void *)str
);
741 int EVP_PKEY_CTX_hex2ctrl(EVP_PKEY_CTX
*ctx
, int cmd
, const char *hex
)
747 bin
= OPENSSL_hexstr2buf(hex
, &binlen
);
750 if (binlen
<= INT_MAX
)
751 rv
= ctx
->pmeth
->ctrl(ctx
, cmd
, binlen
, bin
);
756 /* Pass a message digest to a ctrl */
757 int EVP_PKEY_CTX_md(EVP_PKEY_CTX
*ctx
, int optype
, int cmd
, const char *md
)
761 if (md
== NULL
|| (m
= EVP_get_digestbyname(md
)) == NULL
) {
762 EVPerr(EVP_F_EVP_PKEY_CTX_MD
, EVP_R_INVALID_DIGEST
);
765 return EVP_PKEY_CTX_ctrl(ctx
, -1, optype
, cmd
, 0, (void *)m
);
768 int EVP_PKEY_CTX_get_operation(EVP_PKEY_CTX
*ctx
)
770 return ctx
->operation
;
773 void EVP_PKEY_CTX_set0_keygen_info(EVP_PKEY_CTX
*ctx
, int *dat
, int datlen
)
775 ctx
->keygen_info
= dat
;
776 ctx
->keygen_info_count
= datlen
;
779 void EVP_PKEY_CTX_set_data(EVP_PKEY_CTX
*ctx
, void *data
)
784 void *EVP_PKEY_CTX_get_data(const EVP_PKEY_CTX
*ctx
)
789 EVP_PKEY
*EVP_PKEY_CTX_get0_pkey(EVP_PKEY_CTX
*ctx
)
794 EVP_PKEY
*EVP_PKEY_CTX_get0_peerkey(EVP_PKEY_CTX
*ctx
)
799 void EVP_PKEY_CTX_set_app_data(EVP_PKEY_CTX
*ctx
, void *data
)
801 ctx
->app_data
= data
;
804 void *EVP_PKEY_CTX_get_app_data(EVP_PKEY_CTX
*ctx
)
806 return ctx
->app_data
;
809 void EVP_PKEY_meth_set_init(EVP_PKEY_METHOD
*pmeth
,
810 int (*init
) (EVP_PKEY_CTX
*ctx
))
815 void EVP_PKEY_meth_set_copy(EVP_PKEY_METHOD
*pmeth
,
816 int (*copy
) (EVP_PKEY_CTX
*dst
,
817 const EVP_PKEY_CTX
*src
))
822 void EVP_PKEY_meth_set_cleanup(EVP_PKEY_METHOD
*pmeth
,
823 void (*cleanup
) (EVP_PKEY_CTX
*ctx
))
825 pmeth
->cleanup
= cleanup
;
828 void EVP_PKEY_meth_set_paramgen(EVP_PKEY_METHOD
*pmeth
,
829 int (*paramgen_init
) (EVP_PKEY_CTX
*ctx
),
830 int (*paramgen
) (EVP_PKEY_CTX
*ctx
,
833 pmeth
->paramgen_init
= paramgen_init
;
834 pmeth
->paramgen
= paramgen
;
837 void EVP_PKEY_meth_set_keygen(EVP_PKEY_METHOD
*pmeth
,
838 int (*keygen_init
) (EVP_PKEY_CTX
*ctx
),
839 int (*keygen
) (EVP_PKEY_CTX
*ctx
,
842 pmeth
->keygen_init
= keygen_init
;
843 pmeth
->keygen
= keygen
;
846 void EVP_PKEY_meth_set_sign(EVP_PKEY_METHOD
*pmeth
,
847 int (*sign_init
) (EVP_PKEY_CTX
*ctx
),
848 int (*sign
) (EVP_PKEY_CTX
*ctx
,
849 unsigned char *sig
, size_t *siglen
,
850 const unsigned char *tbs
,
853 pmeth
->sign_init
= sign_init
;
857 void EVP_PKEY_meth_set_verify(EVP_PKEY_METHOD
*pmeth
,
858 int (*verify_init
) (EVP_PKEY_CTX
*ctx
),
859 int (*verify
) (EVP_PKEY_CTX
*ctx
,
860 const unsigned char *sig
,
862 const unsigned char *tbs
,
865 pmeth
->verify_init
= verify_init
;
866 pmeth
->verify
= verify
;
869 void EVP_PKEY_meth_set_verify_recover(EVP_PKEY_METHOD
*pmeth
,
870 int (*verify_recover_init
) (EVP_PKEY_CTX
872 int (*verify_recover
) (EVP_PKEY_CTX
881 pmeth
->verify_recover_init
= verify_recover_init
;
882 pmeth
->verify_recover
= verify_recover
;
885 void EVP_PKEY_meth_set_signctx(EVP_PKEY_METHOD
*pmeth
,
886 int (*signctx_init
) (EVP_PKEY_CTX
*ctx
,
888 int (*signctx
) (EVP_PKEY_CTX
*ctx
,
893 pmeth
->signctx_init
= signctx_init
;
894 pmeth
->signctx
= signctx
;
897 void EVP_PKEY_meth_set_verifyctx(EVP_PKEY_METHOD
*pmeth
,
898 int (*verifyctx_init
) (EVP_PKEY_CTX
*ctx
,
900 int (*verifyctx
) (EVP_PKEY_CTX
*ctx
,
901 const unsigned char *sig
,
905 pmeth
->verifyctx_init
= verifyctx_init
;
906 pmeth
->verifyctx
= verifyctx
;
909 void EVP_PKEY_meth_set_encrypt(EVP_PKEY_METHOD
*pmeth
,
910 int (*encrypt_init
) (EVP_PKEY_CTX
*ctx
),
911 int (*encryptfn
) (EVP_PKEY_CTX
*ctx
,
914 const unsigned char *in
,
917 pmeth
->encrypt_init
= encrypt_init
;
918 pmeth
->encrypt
= encryptfn
;
921 void EVP_PKEY_meth_set_decrypt(EVP_PKEY_METHOD
*pmeth
,
922 int (*decrypt_init
) (EVP_PKEY_CTX
*ctx
),
923 int (*decrypt
) (EVP_PKEY_CTX
*ctx
,
926 const unsigned char *in
,
929 pmeth
->decrypt_init
= decrypt_init
;
930 pmeth
->decrypt
= decrypt
;
933 void EVP_PKEY_meth_set_derive(EVP_PKEY_METHOD
*pmeth
,
934 int (*derive_init
) (EVP_PKEY_CTX
*ctx
),
935 int (*derive
) (EVP_PKEY_CTX
*ctx
,
939 pmeth
->derive_init
= derive_init
;
940 pmeth
->derive
= derive
;
943 void EVP_PKEY_meth_set_ctrl(EVP_PKEY_METHOD
*pmeth
,
944 int (*ctrl
) (EVP_PKEY_CTX
*ctx
, int type
, int p1
,
946 int (*ctrl_str
) (EVP_PKEY_CTX
*ctx
,
951 pmeth
->ctrl_str
= ctrl_str
;
954 void EVP_PKEY_meth_set_check(EVP_PKEY_METHOD
*pmeth
,
955 int (*check
) (EVP_PKEY
*pkey
))
957 pmeth
->check
= check
;
960 void EVP_PKEY_meth_set_public_check(EVP_PKEY_METHOD
*pmeth
,
961 int (*check
) (EVP_PKEY
*pkey
))
963 pmeth
->public_check
= check
;
966 void EVP_PKEY_meth_set_param_check(EVP_PKEY_METHOD
*pmeth
,
967 int (*check
) (EVP_PKEY
*pkey
))
969 pmeth
->param_check
= check
;
972 void EVP_PKEY_meth_set_digest_custom(EVP_PKEY_METHOD
*pmeth
,
973 int (*digest_custom
) (EVP_PKEY_CTX
*ctx
,
976 pmeth
->digest_custom
= digest_custom
;
979 void EVP_PKEY_meth_get_init(const EVP_PKEY_METHOD
*pmeth
,
980 int (**pinit
) (EVP_PKEY_CTX
*ctx
))
982 *pinit
= pmeth
->init
;
985 void EVP_PKEY_meth_get_copy(const EVP_PKEY_METHOD
*pmeth
,
986 int (**pcopy
) (EVP_PKEY_CTX
*dst
,
987 const EVP_PKEY_CTX
*src
))
989 *pcopy
= pmeth
->copy
;
992 void EVP_PKEY_meth_get_cleanup(const EVP_PKEY_METHOD
*pmeth
,
993 void (**pcleanup
) (EVP_PKEY_CTX
*ctx
))
995 *pcleanup
= pmeth
->cleanup
;
998 void EVP_PKEY_meth_get_paramgen(const EVP_PKEY_METHOD
*pmeth
,
999 int (**pparamgen_init
) (EVP_PKEY_CTX
*ctx
),
1000 int (**pparamgen
) (EVP_PKEY_CTX
*ctx
,
1004 *pparamgen_init
= pmeth
->paramgen_init
;
1006 *pparamgen
= pmeth
->paramgen
;
1009 void EVP_PKEY_meth_get_keygen(const EVP_PKEY_METHOD
*pmeth
,
1010 int (**pkeygen_init
) (EVP_PKEY_CTX
*ctx
),
1011 int (**pkeygen
) (EVP_PKEY_CTX
*ctx
,
1015 *pkeygen_init
= pmeth
->keygen_init
;
1017 *pkeygen
= pmeth
->keygen
;
1020 void EVP_PKEY_meth_get_sign(const EVP_PKEY_METHOD
*pmeth
,
1021 int (**psign_init
) (EVP_PKEY_CTX
*ctx
),
1022 int (**psign
) (EVP_PKEY_CTX
*ctx
,
1023 unsigned char *sig
, size_t *siglen
,
1024 const unsigned char *tbs
,
1028 *psign_init
= pmeth
->sign_init
;
1030 *psign
= pmeth
->sign
;
1033 void EVP_PKEY_meth_get_verify(const EVP_PKEY_METHOD
*pmeth
,
1034 int (**pverify_init
) (EVP_PKEY_CTX
*ctx
),
1035 int (**pverify
) (EVP_PKEY_CTX
*ctx
,
1036 const unsigned char *sig
,
1038 const unsigned char *tbs
,
1042 *pverify_init
= pmeth
->verify_init
;
1044 *pverify
= pmeth
->verify
;
1047 void EVP_PKEY_meth_get_verify_recover(const EVP_PKEY_METHOD
*pmeth
,
1048 int (**pverify_recover_init
) (EVP_PKEY_CTX
1050 int (**pverify_recover
) (EVP_PKEY_CTX
1059 if (pverify_recover_init
)
1060 *pverify_recover_init
= pmeth
->verify_recover_init
;
1061 if (pverify_recover
)
1062 *pverify_recover
= pmeth
->verify_recover
;
1065 void EVP_PKEY_meth_get_signctx(const EVP_PKEY_METHOD
*pmeth
,
1066 int (**psignctx_init
) (EVP_PKEY_CTX
*ctx
,
1068 int (**psignctx
) (EVP_PKEY_CTX
*ctx
,
1074 *psignctx_init
= pmeth
->signctx_init
;
1076 *psignctx
= pmeth
->signctx
;
1079 void EVP_PKEY_meth_get_verifyctx(const EVP_PKEY_METHOD
*pmeth
,
1080 int (**pverifyctx_init
) (EVP_PKEY_CTX
*ctx
,
1082 int (**pverifyctx
) (EVP_PKEY_CTX
*ctx
,
1083 const unsigned char *sig
,
1087 if (pverifyctx_init
)
1088 *pverifyctx_init
= pmeth
->verifyctx_init
;
1090 *pverifyctx
= pmeth
->verifyctx
;
1093 void EVP_PKEY_meth_get_encrypt(const EVP_PKEY_METHOD
*pmeth
,
1094 int (**pencrypt_init
) (EVP_PKEY_CTX
*ctx
),
1095 int (**pencryptfn
) (EVP_PKEY_CTX
*ctx
,
1098 const unsigned char *in
,
1102 *pencrypt_init
= pmeth
->encrypt_init
;
1104 *pencryptfn
= pmeth
->encrypt
;
1107 void EVP_PKEY_meth_get_decrypt(const EVP_PKEY_METHOD
*pmeth
,
1108 int (**pdecrypt_init
) (EVP_PKEY_CTX
*ctx
),
1109 int (**pdecrypt
) (EVP_PKEY_CTX
*ctx
,
1112 const unsigned char *in
,
1116 *pdecrypt_init
= pmeth
->decrypt_init
;
1118 *pdecrypt
= pmeth
->decrypt
;
1121 void EVP_PKEY_meth_get_derive(const EVP_PKEY_METHOD
*pmeth
,
1122 int (**pderive_init
) (EVP_PKEY_CTX
*ctx
),
1123 int (**pderive
) (EVP_PKEY_CTX
*ctx
,
1128 *pderive_init
= pmeth
->derive_init
;
1130 *pderive
= pmeth
->derive
;
1133 void EVP_PKEY_meth_get_ctrl(const EVP_PKEY_METHOD
*pmeth
,
1134 int (**pctrl
) (EVP_PKEY_CTX
*ctx
, int type
, int p1
,
1136 int (**pctrl_str
) (EVP_PKEY_CTX
*ctx
,
1141 *pctrl
= pmeth
->ctrl
;
1143 *pctrl_str
= pmeth
->ctrl_str
;
1146 void EVP_PKEY_meth_get_check(const EVP_PKEY_METHOD
*pmeth
,
1147 int (**pcheck
) (EVP_PKEY
*pkey
))
1150 *pcheck
= pmeth
->check
;
1153 void EVP_PKEY_meth_get_public_check(const EVP_PKEY_METHOD
*pmeth
,
1154 int (**pcheck
) (EVP_PKEY
*pkey
))
1157 *pcheck
= pmeth
->public_check
;
1160 void EVP_PKEY_meth_get_param_check(const EVP_PKEY_METHOD
*pmeth
,
1161 int (**pcheck
) (EVP_PKEY
*pkey
))
1164 *pcheck
= pmeth
->param_check
;
1167 void EVP_PKEY_meth_get_digest_custom(EVP_PKEY_METHOD
*pmeth
,
1168 int (**pdigest_custom
) (EVP_PKEY_CTX
*ctx
,
1171 if (pdigest_custom
!= NULL
)
1172 *pdigest_custom
= pmeth
->digest_custom
;