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 ctx
->op
.kex
.exchprovctx
= NULL
;
205 ctx
->op
.kex
.exchange
= NULL
;
206 } else if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx
)) {
207 if (ctx
->op
.sig
.sigprovctx
!= NULL
&& ctx
->op
.sig
.signature
!= NULL
)
208 ctx
->op
.sig
.signature
->freectx(ctx
->op
.sig
.sigprovctx
);
209 EVP_SIGNATURE_free(ctx
->op
.sig
.signature
);
210 ctx
->op
.sig
.sigprovctx
= NULL
;
211 ctx
->op
.sig
.signature
= NULL
;
215 EVP_PKEY_METHOD
*EVP_PKEY_meth_new(int id
, int flags
)
217 EVP_PKEY_METHOD
*pmeth
;
219 pmeth
= OPENSSL_zalloc(sizeof(*pmeth
));
221 EVPerr(EVP_F_EVP_PKEY_METH_NEW
, ERR_R_MALLOC_FAILURE
);
226 pmeth
->flags
= flags
| EVP_PKEY_FLAG_DYNAMIC
;
230 void EVP_PKEY_meth_get0_info(int *ppkey_id
, int *pflags
,
231 const EVP_PKEY_METHOD
*meth
)
234 *ppkey_id
= meth
->pkey_id
;
236 *pflags
= meth
->flags
;
239 void EVP_PKEY_meth_copy(EVP_PKEY_METHOD
*dst
, const EVP_PKEY_METHOD
*src
)
242 dst
->init
= src
->init
;
243 dst
->copy
= src
->copy
;
244 dst
->cleanup
= src
->cleanup
;
246 dst
->paramgen_init
= src
->paramgen_init
;
247 dst
->paramgen
= src
->paramgen
;
249 dst
->keygen_init
= src
->keygen_init
;
250 dst
->keygen
= src
->keygen
;
252 dst
->sign_init
= src
->sign_init
;
253 dst
->sign
= src
->sign
;
255 dst
->verify_init
= src
->verify_init
;
256 dst
->verify
= src
->verify
;
258 dst
->verify_recover_init
= src
->verify_recover_init
;
259 dst
->verify_recover
= src
->verify_recover
;
261 dst
->signctx_init
= src
->signctx_init
;
262 dst
->signctx
= src
->signctx
;
264 dst
->verifyctx_init
= src
->verifyctx_init
;
265 dst
->verifyctx
= src
->verifyctx
;
267 dst
->encrypt_init
= src
->encrypt_init
;
268 dst
->encrypt
= src
->encrypt
;
270 dst
->decrypt_init
= src
->decrypt_init
;
271 dst
->decrypt
= src
->decrypt
;
273 dst
->derive_init
= src
->derive_init
;
274 dst
->derive
= src
->derive
;
276 dst
->ctrl
= src
->ctrl
;
277 dst
->ctrl_str
= src
->ctrl_str
;
279 dst
->check
= src
->check
;
282 void EVP_PKEY_meth_free(EVP_PKEY_METHOD
*pmeth
)
284 if (pmeth
&& (pmeth
->flags
& EVP_PKEY_FLAG_DYNAMIC
))
288 EVP_PKEY_CTX
*EVP_PKEY_CTX_new(EVP_PKEY
*pkey
, ENGINE
*e
)
290 return int_ctx_new(pkey
, e
, NULL
, NULL
, -1);
293 EVP_PKEY_CTX
*EVP_PKEY_CTX_new_id(int id
, ENGINE
*e
)
295 return int_ctx_new(NULL
, e
, NULL
, NULL
, id
);
298 EVP_PKEY_CTX
*EVP_PKEY_CTX_new_provided(const char *name
,
299 const char *propquery
)
301 return int_ctx_new(NULL
, NULL
, name
, propquery
, -1);
304 EVP_PKEY_CTX
*EVP_PKEY_CTX_dup(const EVP_PKEY_CTX
*pctx
)
308 if (((pctx
->pmeth
== NULL
) || (pctx
->pmeth
->copy
== NULL
))
309 && ((EVP_PKEY_CTX_IS_DERIVE_OP(pctx
)
310 && pctx
->op
.kex
.exchprovctx
== NULL
)
311 || (EVP_PKEY_CTX_IS_SIGNATURE_OP(pctx
)
312 && pctx
->op
.sig
.sigprovctx
== NULL
)))
314 #ifndef OPENSSL_NO_ENGINE
315 /* Make sure it's safe to copy a pkey context using an ENGINE */
316 if (pctx
->engine
&& !ENGINE_init(pctx
->engine
)) {
317 EVPerr(EVP_F_EVP_PKEY_CTX_DUP
, ERR_R_ENGINE_LIB
);
321 rctx
= OPENSSL_zalloc(sizeof(*rctx
));
323 EVPerr(EVP_F_EVP_PKEY_CTX_DUP
, ERR_R_MALLOC_FAILURE
);
327 if (pctx
->pkey
!= NULL
)
328 EVP_PKEY_up_ref(pctx
->pkey
);
329 rctx
->pkey
= pctx
->pkey
;
330 rctx
->operation
= pctx
->operation
;
331 rctx
->algorithm
= pctx
->algorithm
;
332 rctx
->propquery
= pctx
->propquery
;
334 if (EVP_PKEY_CTX_IS_DERIVE_OP(pctx
)) {
335 if (pctx
->op
.kex
.exchange
!= NULL
) {
336 rctx
->op
.kex
.exchange
= pctx
->op
.kex
.exchange
;
337 if (!EVP_KEYEXCH_up_ref(rctx
->op
.kex
.exchange
)) {
342 if (pctx
->op
.kex
.exchprovctx
!= NULL
) {
343 if (!ossl_assert(pctx
->op
.kex
.exchange
!= NULL
))
345 rctx
->op
.kex
.exchprovctx
346 = pctx
->op
.kex
.exchange
->dupctx(pctx
->op
.kex
.exchprovctx
);
347 if (rctx
->op
.kex
.exchprovctx
== NULL
) {
348 EVP_KEYEXCH_free(rctx
->op
.kex
.exchange
);
354 } else if (EVP_PKEY_CTX_IS_SIGNATURE_OP(pctx
)) {
355 if (pctx
->op
.sig
.signature
!= NULL
) {
356 rctx
->op
.sig
.signature
= pctx
->op
.sig
.signature
;
357 if (!EVP_SIGNATURE_up_ref(rctx
->op
.sig
.signature
)) {
362 if (pctx
->op
.sig
.sigprovctx
!= NULL
) {
363 if (!ossl_assert(pctx
->op
.sig
.signature
!= NULL
))
365 rctx
->op
.sig
.sigprovctx
366 = pctx
->op
.sig
.signature
->dupctx(pctx
->op
.sig
.sigprovctx
);
367 if (rctx
->op
.sig
.sigprovctx
== NULL
) {
368 EVP_SIGNATURE_free(rctx
->op
.sig
.signature
);
376 rctx
->pmeth
= pctx
->pmeth
;
377 #ifndef OPENSSL_NO_ENGINE
378 rctx
->engine
= pctx
->engine
;
382 EVP_PKEY_up_ref(pctx
->peerkey
);
383 rctx
->peerkey
= pctx
->peerkey
;
385 if (pctx
->pmeth
->copy(rctx
, pctx
) > 0)
389 EVP_PKEY_CTX_free(rctx
);
394 int EVP_PKEY_meth_add0(const EVP_PKEY_METHOD
*pmeth
)
396 if (app_pkey_methods
== NULL
) {
397 app_pkey_methods
= sk_EVP_PKEY_METHOD_new(pmeth_cmp
);
398 if (app_pkey_methods
== NULL
){
399 EVPerr(EVP_F_EVP_PKEY_METH_ADD0
, ERR_R_MALLOC_FAILURE
);
403 if (!sk_EVP_PKEY_METHOD_push(app_pkey_methods
, pmeth
)) {
404 EVPerr(EVP_F_EVP_PKEY_METH_ADD0
, ERR_R_MALLOC_FAILURE
);
407 sk_EVP_PKEY_METHOD_sort(app_pkey_methods
);
411 void evp_app_cleanup_int(void)
413 if (app_pkey_methods
!= NULL
)
414 sk_EVP_PKEY_METHOD_pop_free(app_pkey_methods
, EVP_PKEY_meth_free
);
417 int EVP_PKEY_meth_remove(const EVP_PKEY_METHOD
*pmeth
)
419 const EVP_PKEY_METHOD
*ret
;
421 ret
= sk_EVP_PKEY_METHOD_delete_ptr(app_pkey_methods
, pmeth
);
423 return ret
== NULL
? 0 : 1;
426 size_t EVP_PKEY_meth_get_count(void)
428 size_t rv
= OSSL_NELEM(standard_methods
);
430 if (app_pkey_methods
)
431 rv
+= sk_EVP_PKEY_METHOD_num(app_pkey_methods
);
435 const EVP_PKEY_METHOD
*EVP_PKEY_meth_get0(size_t idx
)
437 if (idx
< OSSL_NELEM(standard_methods
))
438 return (standard_methods
[idx
])();
439 if (app_pkey_methods
== NULL
)
441 idx
-= OSSL_NELEM(standard_methods
);
442 if (idx
>= (size_t)sk_EVP_PKEY_METHOD_num(app_pkey_methods
))
444 return sk_EVP_PKEY_METHOD_value(app_pkey_methods
, idx
);
447 void EVP_PKEY_CTX_free(EVP_PKEY_CTX
*ctx
)
451 if (ctx
->pmeth
&& ctx
->pmeth
->cleanup
)
452 ctx
->pmeth
->cleanup(ctx
);
454 evp_pkey_ctx_free_old_ops(ctx
);
456 EVP_PKEY_free(ctx
->pkey
);
457 EVP_PKEY_free(ctx
->peerkey
);
458 #ifndef OPENSSL_NO_ENGINE
459 ENGINE_finish(ctx
->engine
);
464 int EVP_PKEY_CTX_get_params(EVP_PKEY_CTX
*ctx
, OSSL_PARAM
*params
)
466 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx
)
467 && ctx
->op
.sig
.sigprovctx
!= NULL
468 && ctx
->op
.sig
.signature
!= NULL
469 && ctx
->op
.sig
.signature
->get_ctx_params
!= NULL
)
470 return ctx
->op
.sig
.signature
->get_ctx_params(ctx
->op
.sig
.sigprovctx
,
475 const OSSL_PARAM
*EVP_PKEY_CTX_gettable_params(EVP_PKEY_CTX
*ctx
)
477 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx
)
478 && ctx
->op
.sig
.signature
!= NULL
479 && ctx
->op
.sig
.signature
->gettable_ctx_params
!= NULL
)
480 return ctx
->op
.sig
.signature
->gettable_ctx_params();
485 int EVP_PKEY_CTX_set_params(EVP_PKEY_CTX
*ctx
, OSSL_PARAM
*params
)
487 if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx
)
488 && ctx
->op
.kex
.exchprovctx
!= NULL
489 && ctx
->op
.kex
.exchange
!= NULL
490 && ctx
->op
.kex
.exchange
->set_ctx_params
!= NULL
)
491 return ctx
->op
.kex
.exchange
->set_ctx_params(ctx
->op
.kex
.exchprovctx
,
493 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx
)
494 && ctx
->op
.sig
.sigprovctx
!= NULL
495 && ctx
->op
.sig
.signature
!= NULL
496 && ctx
->op
.sig
.signature
->set_ctx_params
!= NULL
)
497 return ctx
->op
.sig
.signature
->set_ctx_params(ctx
->op
.sig
.sigprovctx
,
502 const OSSL_PARAM
*EVP_PKEY_CTX_settable_params(EVP_PKEY_CTX
*ctx
)
504 if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx
)
505 && ctx
->op
.kex
.exchange
!= NULL
506 && ctx
->op
.kex
.exchange
->settable_ctx_params
!= NULL
)
507 return ctx
->op
.kex
.exchange
->settable_ctx_params();
508 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx
)
509 && ctx
->op
.sig
.signature
!= NULL
510 && ctx
->op
.sig
.signature
->settable_ctx_params
!= NULL
)
511 return ctx
->op
.sig
.signature
->settable_ctx_params();
516 #ifndef OPENSSL_NO_DH
517 int EVP_PKEY_CTX_set_dh_pad(EVP_PKEY_CTX
*ctx
, int pad
)
519 OSSL_PARAM dh_pad_params
[2];
520 unsigned int upad
= pad
;
522 /* We use EVP_PKEY_CTX_ctrl return values */
523 if (ctx
== NULL
|| !EVP_PKEY_CTX_IS_DERIVE_OP(ctx
)) {
524 ERR_raise(ERR_LIB_EVP
, EVP_R_COMMAND_NOT_SUPPORTED
);
528 /* TODO(3.0): Remove this eventually when no more legacy */
529 if (ctx
->op
.kex
.exchprovctx
== NULL
)
530 return EVP_PKEY_CTX_ctrl(ctx
, EVP_PKEY_DH
, EVP_PKEY_OP_DERIVE
,
531 EVP_PKEY_CTRL_DH_PAD
, pad
, NULL
);
533 dh_pad_params
[0] = OSSL_PARAM_construct_uint(OSSL_EXCHANGE_PARAM_PAD
, &upad
);
534 dh_pad_params
[1] = OSSL_PARAM_construct_end();
536 return EVP_PKEY_CTX_set_params(ctx
, dh_pad_params
);
540 int EVP_PKEY_CTX_get_signature_md(EVP_PKEY_CTX
*ctx
, const EVP_MD
**md
)
542 OSSL_PARAM sig_md_params
[3], *p
= sig_md_params
;
543 /* 80 should be big enough */
547 if (ctx
== NULL
|| !EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx
)) {
548 ERR_raise(ERR_LIB_EVP
, EVP_R_COMMAND_NOT_SUPPORTED
);
549 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
553 /* TODO(3.0): Remove this eventually when no more legacy */
554 if (ctx
->op
.sig
.sigprovctx
== NULL
)
555 return EVP_PKEY_CTX_ctrl(ctx
, -1, EVP_PKEY_OP_TYPE_SIG
,
556 EVP_PKEY_CTRL_GET_MD
, 0, (void *)(md
));
558 *p
++ = OSSL_PARAM_construct_utf8_string(OSSL_SIGNATURE_PARAM_DIGEST
,
561 *p
++ = OSSL_PARAM_construct_end();
563 if (!EVP_PKEY_CTX_get_params(ctx
, sig_md_params
))
566 tmp
= EVP_get_digestbyname(name
);
575 int EVP_PKEY_CTX_set_signature_md(EVP_PKEY_CTX
*ctx
, const EVP_MD
*md
)
577 OSSL_PARAM sig_md_params
[3], *p
= sig_md_params
;
581 if (ctx
== NULL
|| !EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx
)) {
582 ERR_raise(ERR_LIB_EVP
, EVP_R_COMMAND_NOT_SUPPORTED
);
583 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
587 /* TODO(3.0): Remove this eventually when no more legacy */
588 if (ctx
->op
.sig
.sigprovctx
== NULL
)
589 return EVP_PKEY_CTX_ctrl(ctx
, -1, EVP_PKEY_OP_TYPE_SIG
,
590 EVP_PKEY_CTRL_MD
, 0, (void *)(md
));
596 mdsize
= EVP_MD_size(md
);
597 name
= EVP_MD_name(md
);
600 *p
++ = OSSL_PARAM_construct_utf8_string(OSSL_SIGNATURE_PARAM_DIGEST
,
602 * Cast away the const. This is read
603 * only so should be safe
607 *p
++ = OSSL_PARAM_construct_size_t(OSSL_SIGNATURE_PARAM_DIGEST_SIZE
,
609 *p
++ = OSSL_PARAM_construct_end();
611 return EVP_PKEY_CTX_set_params(ctx
, sig_md_params
);
614 static int legacy_ctrl_to_param(EVP_PKEY_CTX
*ctx
, int keytype
, int optype
,
615 int cmd
, int p1
, void *p2
)
618 #ifndef OPENSSL_NO_DH
619 case EVP_PKEY_CTRL_DH_PAD
:
620 return EVP_PKEY_CTX_set_dh_pad(ctx
, p1
);
622 case EVP_PKEY_CTRL_MD
:
623 return EVP_PKEY_CTX_set_signature_md(ctx
, p2
);
624 case EVP_PKEY_CTRL_GET_MD
:
625 return EVP_PKEY_CTX_get_signature_md(ctx
, p2
);
630 int EVP_PKEY_CTX_ctrl(EVP_PKEY_CTX
*ctx
, int keytype
, int optype
,
631 int cmd
, int p1
, void *p2
)
636 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL
, EVP_R_COMMAND_NOT_SUPPORTED
);
640 if ((EVP_PKEY_CTX_IS_DERIVE_OP(ctx
) && ctx
->op
.kex
.exchprovctx
!= NULL
)
641 || (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx
)
642 && ctx
->op
.sig
.sigprovctx
!= NULL
))
643 return legacy_ctrl_to_param(ctx
, keytype
, optype
, cmd
, p1
, p2
);
645 if (ctx
->pmeth
== NULL
|| ctx
->pmeth
->ctrl
== NULL
) {
646 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL
, EVP_R_COMMAND_NOT_SUPPORTED
);
649 if ((keytype
!= -1) && (ctx
->pmeth
->pkey_id
!= keytype
))
652 /* Skip the operation checks since this is called in a very early stage */
653 if (ctx
->pmeth
->digest_custom
!= NULL
)
656 if (ctx
->operation
== EVP_PKEY_OP_UNDEFINED
) {
657 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL
, EVP_R_NO_OPERATION_SET
);
661 if ((optype
!= -1) && !(ctx
->operation
& optype
)) {
662 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL
, EVP_R_INVALID_OPERATION
);
667 ret
= ctx
->pmeth
->ctrl(ctx
, cmd
, p1
, p2
);
670 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL
, EVP_R_COMMAND_NOT_SUPPORTED
);
675 int EVP_PKEY_CTX_ctrl_uint64(EVP_PKEY_CTX
*ctx
, int keytype
, int optype
,
676 int cmd
, uint64_t value
)
678 return EVP_PKEY_CTX_ctrl(ctx
, keytype
, optype
, cmd
, 0, &value
);
681 static int legacy_ctrl_str_to_param(EVP_PKEY_CTX
*ctx
, const char *name
,
684 #ifndef OPENSSL_NO_DH
685 if (strcmp(name
, "dh_pad") == 0) {
689 return EVP_PKEY_CTX_set_dh_pad(ctx
, pad
);
692 if (strcmp(name
, "digest") == 0) {
696 if (!EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx
) || ctx
->op
.sig
.signature
== NULL
)
698 md
= EVP_MD_fetch(ossl_provider_library_context(ctx
->op
.sig
.signature
->prov
),
702 ret
= EVP_PKEY_CTX_set_signature_md(ctx
, md
);
703 EVP_MD_meth_free(md
);
710 int EVP_PKEY_CTX_ctrl_str(EVP_PKEY_CTX
*ctx
,
711 const char *name
, const char *value
)
714 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL_STR
, EVP_R_COMMAND_NOT_SUPPORTED
);
718 if ((EVP_PKEY_CTX_IS_DERIVE_OP(ctx
) && ctx
->op
.kex
.exchprovctx
!= NULL
)
719 || (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx
)
720 && ctx
->op
.sig
.sigprovctx
!= NULL
))
721 return legacy_ctrl_str_to_param(ctx
, name
, value
);
723 if (!ctx
|| !ctx
->pmeth
|| !ctx
->pmeth
->ctrl_str
) {
724 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL_STR
, EVP_R_COMMAND_NOT_SUPPORTED
);
727 if (strcmp(name
, "digest") == 0)
728 return EVP_PKEY_CTX_md(ctx
, EVP_PKEY_OP_TYPE_SIG
, EVP_PKEY_CTRL_MD
,
730 return ctx
->pmeth
->ctrl_str(ctx
, name
, value
);
733 /* Utility functions to send a string of hex string to a ctrl */
735 int EVP_PKEY_CTX_str2ctrl(EVP_PKEY_CTX
*ctx
, int cmd
, const char *str
)
742 return ctx
->pmeth
->ctrl(ctx
, cmd
, len
, (void *)str
);
745 int EVP_PKEY_CTX_hex2ctrl(EVP_PKEY_CTX
*ctx
, int cmd
, const char *hex
)
751 bin
= OPENSSL_hexstr2buf(hex
, &binlen
);
754 if (binlen
<= INT_MAX
)
755 rv
= ctx
->pmeth
->ctrl(ctx
, cmd
, binlen
, bin
);
760 /* Pass a message digest to a ctrl */
761 int EVP_PKEY_CTX_md(EVP_PKEY_CTX
*ctx
, int optype
, int cmd
, const char *md
)
765 if (md
== NULL
|| (m
= EVP_get_digestbyname(md
)) == NULL
) {
766 EVPerr(EVP_F_EVP_PKEY_CTX_MD
, EVP_R_INVALID_DIGEST
);
769 return EVP_PKEY_CTX_ctrl(ctx
, -1, optype
, cmd
, 0, (void *)m
);
772 int EVP_PKEY_CTX_get_operation(EVP_PKEY_CTX
*ctx
)
774 return ctx
->operation
;
777 void EVP_PKEY_CTX_set0_keygen_info(EVP_PKEY_CTX
*ctx
, int *dat
, int datlen
)
779 ctx
->keygen_info
= dat
;
780 ctx
->keygen_info_count
= datlen
;
783 void EVP_PKEY_CTX_set_data(EVP_PKEY_CTX
*ctx
, void *data
)
788 void *EVP_PKEY_CTX_get_data(const EVP_PKEY_CTX
*ctx
)
793 EVP_PKEY
*EVP_PKEY_CTX_get0_pkey(EVP_PKEY_CTX
*ctx
)
798 EVP_PKEY
*EVP_PKEY_CTX_get0_peerkey(EVP_PKEY_CTX
*ctx
)
803 void EVP_PKEY_CTX_set_app_data(EVP_PKEY_CTX
*ctx
, void *data
)
805 ctx
->app_data
= data
;
808 void *EVP_PKEY_CTX_get_app_data(EVP_PKEY_CTX
*ctx
)
810 return ctx
->app_data
;
813 void EVP_PKEY_meth_set_init(EVP_PKEY_METHOD
*pmeth
,
814 int (*init
) (EVP_PKEY_CTX
*ctx
))
819 void EVP_PKEY_meth_set_copy(EVP_PKEY_METHOD
*pmeth
,
820 int (*copy
) (EVP_PKEY_CTX
*dst
,
821 const EVP_PKEY_CTX
*src
))
826 void EVP_PKEY_meth_set_cleanup(EVP_PKEY_METHOD
*pmeth
,
827 void (*cleanup
) (EVP_PKEY_CTX
*ctx
))
829 pmeth
->cleanup
= cleanup
;
832 void EVP_PKEY_meth_set_paramgen(EVP_PKEY_METHOD
*pmeth
,
833 int (*paramgen_init
) (EVP_PKEY_CTX
*ctx
),
834 int (*paramgen
) (EVP_PKEY_CTX
*ctx
,
837 pmeth
->paramgen_init
= paramgen_init
;
838 pmeth
->paramgen
= paramgen
;
841 void EVP_PKEY_meth_set_keygen(EVP_PKEY_METHOD
*pmeth
,
842 int (*keygen_init
) (EVP_PKEY_CTX
*ctx
),
843 int (*keygen
) (EVP_PKEY_CTX
*ctx
,
846 pmeth
->keygen_init
= keygen_init
;
847 pmeth
->keygen
= keygen
;
850 void EVP_PKEY_meth_set_sign(EVP_PKEY_METHOD
*pmeth
,
851 int (*sign_init
) (EVP_PKEY_CTX
*ctx
),
852 int (*sign
) (EVP_PKEY_CTX
*ctx
,
853 unsigned char *sig
, size_t *siglen
,
854 const unsigned char *tbs
,
857 pmeth
->sign_init
= sign_init
;
861 void EVP_PKEY_meth_set_verify(EVP_PKEY_METHOD
*pmeth
,
862 int (*verify_init
) (EVP_PKEY_CTX
*ctx
),
863 int (*verify
) (EVP_PKEY_CTX
*ctx
,
864 const unsigned char *sig
,
866 const unsigned char *tbs
,
869 pmeth
->verify_init
= verify_init
;
870 pmeth
->verify
= verify
;
873 void EVP_PKEY_meth_set_verify_recover(EVP_PKEY_METHOD
*pmeth
,
874 int (*verify_recover_init
) (EVP_PKEY_CTX
876 int (*verify_recover
) (EVP_PKEY_CTX
885 pmeth
->verify_recover_init
= verify_recover_init
;
886 pmeth
->verify_recover
= verify_recover
;
889 void EVP_PKEY_meth_set_signctx(EVP_PKEY_METHOD
*pmeth
,
890 int (*signctx_init
) (EVP_PKEY_CTX
*ctx
,
892 int (*signctx
) (EVP_PKEY_CTX
*ctx
,
897 pmeth
->signctx_init
= signctx_init
;
898 pmeth
->signctx
= signctx
;
901 void EVP_PKEY_meth_set_verifyctx(EVP_PKEY_METHOD
*pmeth
,
902 int (*verifyctx_init
) (EVP_PKEY_CTX
*ctx
,
904 int (*verifyctx
) (EVP_PKEY_CTX
*ctx
,
905 const unsigned char *sig
,
909 pmeth
->verifyctx_init
= verifyctx_init
;
910 pmeth
->verifyctx
= verifyctx
;
913 void EVP_PKEY_meth_set_encrypt(EVP_PKEY_METHOD
*pmeth
,
914 int (*encrypt_init
) (EVP_PKEY_CTX
*ctx
),
915 int (*encryptfn
) (EVP_PKEY_CTX
*ctx
,
918 const unsigned char *in
,
921 pmeth
->encrypt_init
= encrypt_init
;
922 pmeth
->encrypt
= encryptfn
;
925 void EVP_PKEY_meth_set_decrypt(EVP_PKEY_METHOD
*pmeth
,
926 int (*decrypt_init
) (EVP_PKEY_CTX
*ctx
),
927 int (*decrypt
) (EVP_PKEY_CTX
*ctx
,
930 const unsigned char *in
,
933 pmeth
->decrypt_init
= decrypt_init
;
934 pmeth
->decrypt
= decrypt
;
937 void EVP_PKEY_meth_set_derive(EVP_PKEY_METHOD
*pmeth
,
938 int (*derive_init
) (EVP_PKEY_CTX
*ctx
),
939 int (*derive
) (EVP_PKEY_CTX
*ctx
,
943 pmeth
->derive_init
= derive_init
;
944 pmeth
->derive
= derive
;
947 void EVP_PKEY_meth_set_ctrl(EVP_PKEY_METHOD
*pmeth
,
948 int (*ctrl
) (EVP_PKEY_CTX
*ctx
, int type
, int p1
,
950 int (*ctrl_str
) (EVP_PKEY_CTX
*ctx
,
955 pmeth
->ctrl_str
= ctrl_str
;
958 void EVP_PKEY_meth_set_check(EVP_PKEY_METHOD
*pmeth
,
959 int (*check
) (EVP_PKEY
*pkey
))
961 pmeth
->check
= check
;
964 void EVP_PKEY_meth_set_public_check(EVP_PKEY_METHOD
*pmeth
,
965 int (*check
) (EVP_PKEY
*pkey
))
967 pmeth
->public_check
= check
;
970 void EVP_PKEY_meth_set_param_check(EVP_PKEY_METHOD
*pmeth
,
971 int (*check
) (EVP_PKEY
*pkey
))
973 pmeth
->param_check
= check
;
976 void EVP_PKEY_meth_set_digest_custom(EVP_PKEY_METHOD
*pmeth
,
977 int (*digest_custom
) (EVP_PKEY_CTX
*ctx
,
980 pmeth
->digest_custom
= digest_custom
;
983 void EVP_PKEY_meth_get_init(const EVP_PKEY_METHOD
*pmeth
,
984 int (**pinit
) (EVP_PKEY_CTX
*ctx
))
986 *pinit
= pmeth
->init
;
989 void EVP_PKEY_meth_get_copy(const EVP_PKEY_METHOD
*pmeth
,
990 int (**pcopy
) (EVP_PKEY_CTX
*dst
,
991 const EVP_PKEY_CTX
*src
))
993 *pcopy
= pmeth
->copy
;
996 void EVP_PKEY_meth_get_cleanup(const EVP_PKEY_METHOD
*pmeth
,
997 void (**pcleanup
) (EVP_PKEY_CTX
*ctx
))
999 *pcleanup
= pmeth
->cleanup
;
1002 void EVP_PKEY_meth_get_paramgen(const EVP_PKEY_METHOD
*pmeth
,
1003 int (**pparamgen_init
) (EVP_PKEY_CTX
*ctx
),
1004 int (**pparamgen
) (EVP_PKEY_CTX
*ctx
,
1008 *pparamgen_init
= pmeth
->paramgen_init
;
1010 *pparamgen
= pmeth
->paramgen
;
1013 void EVP_PKEY_meth_get_keygen(const EVP_PKEY_METHOD
*pmeth
,
1014 int (**pkeygen_init
) (EVP_PKEY_CTX
*ctx
),
1015 int (**pkeygen
) (EVP_PKEY_CTX
*ctx
,
1019 *pkeygen_init
= pmeth
->keygen_init
;
1021 *pkeygen
= pmeth
->keygen
;
1024 void EVP_PKEY_meth_get_sign(const EVP_PKEY_METHOD
*pmeth
,
1025 int (**psign_init
) (EVP_PKEY_CTX
*ctx
),
1026 int (**psign
) (EVP_PKEY_CTX
*ctx
,
1027 unsigned char *sig
, size_t *siglen
,
1028 const unsigned char *tbs
,
1032 *psign_init
= pmeth
->sign_init
;
1034 *psign
= pmeth
->sign
;
1037 void EVP_PKEY_meth_get_verify(const EVP_PKEY_METHOD
*pmeth
,
1038 int (**pverify_init
) (EVP_PKEY_CTX
*ctx
),
1039 int (**pverify
) (EVP_PKEY_CTX
*ctx
,
1040 const unsigned char *sig
,
1042 const unsigned char *tbs
,
1046 *pverify_init
= pmeth
->verify_init
;
1048 *pverify
= pmeth
->verify
;
1051 void EVP_PKEY_meth_get_verify_recover(const EVP_PKEY_METHOD
*pmeth
,
1052 int (**pverify_recover_init
) (EVP_PKEY_CTX
1054 int (**pverify_recover
) (EVP_PKEY_CTX
1063 if (pverify_recover_init
)
1064 *pverify_recover_init
= pmeth
->verify_recover_init
;
1065 if (pverify_recover
)
1066 *pverify_recover
= pmeth
->verify_recover
;
1069 void EVP_PKEY_meth_get_signctx(const EVP_PKEY_METHOD
*pmeth
,
1070 int (**psignctx_init
) (EVP_PKEY_CTX
*ctx
,
1072 int (**psignctx
) (EVP_PKEY_CTX
*ctx
,
1078 *psignctx_init
= pmeth
->signctx_init
;
1080 *psignctx
= pmeth
->signctx
;
1083 void EVP_PKEY_meth_get_verifyctx(const EVP_PKEY_METHOD
*pmeth
,
1084 int (**pverifyctx_init
) (EVP_PKEY_CTX
*ctx
,
1086 int (**pverifyctx
) (EVP_PKEY_CTX
*ctx
,
1087 const unsigned char *sig
,
1091 if (pverifyctx_init
)
1092 *pverifyctx_init
= pmeth
->verifyctx_init
;
1094 *pverifyctx
= pmeth
->verifyctx
;
1097 void EVP_PKEY_meth_get_encrypt(const EVP_PKEY_METHOD
*pmeth
,
1098 int (**pencrypt_init
) (EVP_PKEY_CTX
*ctx
),
1099 int (**pencryptfn
) (EVP_PKEY_CTX
*ctx
,
1102 const unsigned char *in
,
1106 *pencrypt_init
= pmeth
->encrypt_init
;
1108 *pencryptfn
= pmeth
->encrypt
;
1111 void EVP_PKEY_meth_get_decrypt(const EVP_PKEY_METHOD
*pmeth
,
1112 int (**pdecrypt_init
) (EVP_PKEY_CTX
*ctx
),
1113 int (**pdecrypt
) (EVP_PKEY_CTX
*ctx
,
1116 const unsigned char *in
,
1120 *pdecrypt_init
= pmeth
->decrypt_init
;
1122 *pdecrypt
= pmeth
->decrypt
;
1125 void EVP_PKEY_meth_get_derive(const EVP_PKEY_METHOD
*pmeth
,
1126 int (**pderive_init
) (EVP_PKEY_CTX
*ctx
),
1127 int (**pderive
) (EVP_PKEY_CTX
*ctx
,
1132 *pderive_init
= pmeth
->derive_init
;
1134 *pderive
= pmeth
->derive
;
1137 void EVP_PKEY_meth_get_ctrl(const EVP_PKEY_METHOD
*pmeth
,
1138 int (**pctrl
) (EVP_PKEY_CTX
*ctx
, int type
, int p1
,
1140 int (**pctrl_str
) (EVP_PKEY_CTX
*ctx
,
1145 *pctrl
= pmeth
->ctrl
;
1147 *pctrl_str
= pmeth
->ctrl_str
;
1150 void EVP_PKEY_meth_get_check(const EVP_PKEY_METHOD
*pmeth
,
1151 int (**pcheck
) (EVP_PKEY
*pkey
))
1154 *pcheck
= pmeth
->check
;
1157 void EVP_PKEY_meth_get_public_check(const EVP_PKEY_METHOD
*pmeth
,
1158 int (**pcheck
) (EVP_PKEY
*pkey
))
1161 *pcheck
= pmeth
->public_check
;
1164 void EVP_PKEY_meth_get_param_check(const EVP_PKEY_METHOD
*pmeth
,
1165 int (**pcheck
) (EVP_PKEY
*pkey
))
1168 *pcheck
= pmeth
->param_check
;
1171 void EVP_PKEY_meth_get_digest_custom(EVP_PKEY_METHOD
*pmeth
,
1172 int (**pdigest_custom
) (EVP_PKEY_CTX
*ctx
,
1175 if (pdigest_custom
!= NULL
)
1176 *pdigest_custom
= pmeth
->digest_custom
;