2 * Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the Apache License 2.0 (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
11 * DSA low level APIs are deprecated for public use, but still ok for
14 #include "internal/deprecated.h"
17 #include "internal/cryptlib.h"
18 #include "internal/refcount.h"
19 #include "internal/namemap.h"
20 #include <openssl/bn.h>
21 #include <openssl/err.h>
22 #include <openssl/objects.h>
23 #include <openssl/evp.h>
24 #include <openssl/x509.h>
25 #include <openssl/rsa.h>
26 #include <openssl/dsa.h>
27 #include <openssl/dh.h>
28 #include <openssl/ec.h>
29 #include <openssl/cmac.h>
30 #include <openssl/engine.h>
31 #include <openssl/params.h>
32 #include <openssl/param_build.h>
33 #include <openssl/encoder.h>
34 #include <openssl/core_names.h>
36 #include "internal/ffc.h"
37 #include "crypto/asn1.h"
38 #include "crypto/evp.h"
39 #include "crypto/ec.h"
40 #include "crypto/ecx.h"
41 #include "internal/provider.h"
42 #include "evp_local.h"
44 #include "crypto/ec.h"
46 #include "e_os.h" /* strcasecmp on Windows */
48 static int pkey_set_type(EVP_PKEY
*pkey
, ENGINE
*e
, int type
, const char *str
,
49 int len
, EVP_KEYMGMT
*keymgmt
);
50 static void evp_pkey_free_it(EVP_PKEY
*key
);
54 /* The type of parameters selected in key parameter functions */
55 # define SELECT_PARAMETERS OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS
57 int EVP_PKEY_bits(const EVP_PKEY
*pkey
)
62 size
= pkey
->cache
.bits
;
63 if (pkey
->ameth
!= NULL
&& pkey
->ameth
->pkey_bits
!= NULL
)
64 size
= pkey
->ameth
->pkey_bits(pkey
);
66 return size
< 0 ? 0 : size
;
69 int EVP_PKEY_security_bits(const EVP_PKEY
*pkey
)
74 size
= pkey
->cache
.security_bits
;
75 if (pkey
->ameth
!= NULL
&& pkey
->ameth
->pkey_security_bits
!= NULL
)
76 size
= pkey
->ameth
->pkey_security_bits(pkey
);
78 return size
< 0 ? 0 : size
;
81 int EVP_PKEY_save_parameters(EVP_PKEY
*pkey
, int mode
)
83 # ifndef OPENSSL_NO_DSA
84 if (pkey
->type
== EVP_PKEY_DSA
) {
85 int ret
= pkey
->save_parameters
;
88 pkey
->save_parameters
= mode
;
92 # ifndef OPENSSL_NO_EC
93 if (pkey
->type
== EVP_PKEY_EC
) {
94 int ret
= pkey
->save_parameters
;
97 pkey
->save_parameters
= mode
;
104 int EVP_PKEY_set_ex_data(EVP_PKEY
*key
, int idx
, void *arg
)
106 return CRYPTO_set_ex_data(&key
->ex_data
, idx
, arg
);
109 void *EVP_PKEY_get_ex_data(const EVP_PKEY
*key
, int idx
)
111 return CRYPTO_get_ex_data(&key
->ex_data
, idx
);
114 int EVP_PKEY_copy_parameters(EVP_PKEY
*to
, const EVP_PKEY
*from
)
117 * Clean up legacy stuff from this function when legacy support is gone.
121 * If |to| is a legacy key and |from| isn't, we must downgrade |from|.
122 * If that fails, this function fails.
124 if (evp_pkey_is_legacy(to
) && evp_pkey_is_provided(from
))
125 if (!evp_pkey_downgrade((EVP_PKEY
*)from
))
129 * Make sure |to| is typed. Content is less important at this early
132 * 1. If |to| is untyped, assign |from|'s key type to it.
133 * 2. If |to| contains a legacy key, compare its |type| to |from|'s.
134 * (|from| was already downgraded above)
136 * If |to| is a provided key, there's nothing more to do here, functions
137 * like evp_keymgmt_util_copy() and evp_pkey_export_to_provider() called
138 * further down help us find out if they are the same or not.
140 if (evp_pkey_is_blank(to
)) {
141 if (evp_pkey_is_legacy(from
)) {
142 if (EVP_PKEY_set_type(to
, from
->type
) == 0)
145 if (EVP_PKEY_set_type_by_keymgmt(to
, from
->keymgmt
) == 0)
148 } else if (evp_pkey_is_legacy(to
)) {
149 if (to
->type
!= from
->type
) {
150 ERR_raise(ERR_LIB_EVP
, EVP_R_DIFFERENT_KEY_TYPES
);
155 if (EVP_PKEY_missing_parameters(from
)) {
156 ERR_raise(ERR_LIB_EVP
, EVP_R_MISSING_PARAMETERS
);
160 if (!EVP_PKEY_missing_parameters(to
)) {
161 if (EVP_PKEY_parameters_eq(to
, from
) == 1)
163 ERR_raise(ERR_LIB_EVP
, EVP_R_DIFFERENT_PARAMETERS
);
167 /* For purely provided keys, we just call the keymgmt utility */
168 if (to
->keymgmt
!= NULL
&& from
->keymgmt
!= NULL
)
169 return evp_keymgmt_util_copy(to
, (EVP_PKEY
*)from
, SELECT_PARAMETERS
);
172 * If |to| is provided, we know that |from| is legacy at this point.
173 * Try exporting |from| to |to|'s keymgmt, then use evp_keymgmt_copy()
174 * to copy the appropriate data to |to|'s keydata.
176 if (to
->keymgmt
!= NULL
) {
177 EVP_KEYMGMT
*to_keymgmt
= to
->keymgmt
;
179 evp_pkey_export_to_provider((EVP_PKEY
*)from
, NULL
, &to_keymgmt
,
183 * If we get a NULL, it could be an internal error, or it could be
184 * that there's a key mismatch. We're pretending the latter...
186 if (from_keydata
== NULL
) {
187 ERR_raise(ERR_LIB_EVP
, EVP_R_DIFFERENT_KEY_TYPES
);
190 return evp_keymgmt_copy(to
->keymgmt
, to
->keydata
, from_keydata
,
194 /* Both keys are legacy */
195 if (from
->ameth
!= NULL
&& from
->ameth
->param_copy
!= NULL
)
196 return from
->ameth
->param_copy(to
, from
);
201 int EVP_PKEY_missing_parameters(const EVP_PKEY
*pkey
)
204 if (pkey
->keymgmt
!= NULL
)
205 return !evp_keymgmt_util_has((EVP_PKEY
*)pkey
, SELECT_PARAMETERS
);
206 else if (pkey
->ameth
!= NULL
&& pkey
->ameth
->param_missing
!= NULL
)
207 return pkey
->ameth
->param_missing(pkey
);
213 * This function is called for any mixture of keys except pure legacy pair.
214 * TODO When legacy keys are gone, we replace a call to this functions with
215 * a call to evp_keymgmt_util_match().
217 static int evp_pkey_cmp_any(const EVP_PKEY
*a
, const EVP_PKEY
*b
,
220 EVP_KEYMGMT
*keymgmt1
= NULL
, *keymgmt2
= NULL
;
221 void *keydata1
= NULL
, *keydata2
= NULL
, *tmp_keydata
= NULL
;
223 /* If none of them are provided, this function shouldn't have been called */
224 if (!ossl_assert(evp_pkey_is_provided(a
) || evp_pkey_is_provided(b
)))
227 /* For purely provided keys, we just call the keymgmt utility */
228 if (evp_pkey_is_provided(a
) && evp_pkey_is_provided(b
))
229 return evp_keymgmt_util_match((EVP_PKEY
*)a
, (EVP_PKEY
*)b
, selection
);
232 * At this point, one of them is provided, the other not. This allows
233 * us to compare types using legacy NIDs.
235 if (evp_pkey_is_legacy(a
)
236 && !EVP_KEYMGMT_is_a(b
->keymgmt
, OBJ_nid2sn(a
->type
)))
237 return -1; /* not the same key type */
238 if (evp_pkey_is_legacy(b
)
239 && !EVP_KEYMGMT_is_a(a
->keymgmt
, OBJ_nid2sn(b
->type
)))
240 return -1; /* not the same key type */
243 * We've determined that they both are the same keytype, so the next
244 * step is to do a bit of cross export to ensure we have keydata for
245 * both keys in the same keymgmt.
247 keymgmt1
= a
->keymgmt
;
248 keydata1
= a
->keydata
;
249 keymgmt2
= b
->keymgmt
;
250 keydata2
= b
->keydata
;
252 if (keymgmt2
!= NULL
&& keymgmt2
->match
!= NULL
) {
254 evp_pkey_export_to_provider((EVP_PKEY
*)a
, NULL
, &keymgmt2
, NULL
);
255 if (tmp_keydata
!= NULL
) {
257 keydata1
= tmp_keydata
;
260 if (tmp_keydata
== NULL
&& keymgmt1
!= NULL
&& keymgmt1
->match
!= NULL
) {
262 evp_pkey_export_to_provider((EVP_PKEY
*)b
, NULL
, &keymgmt1
, NULL
);
263 if (tmp_keydata
!= NULL
) {
265 keydata2
= tmp_keydata
;
269 /* If we still don't have matching keymgmt implementations, we give up */
270 if (keymgmt1
!= keymgmt2
)
273 /* If the keymgmt implementations are NULL, the export failed */
274 if (keymgmt1
== NULL
)
277 return evp_keymgmt_match(keymgmt1
, keydata1
, keydata2
, selection
);
280 int EVP_PKEY_cmp_parameters(const EVP_PKEY
*a
, const EVP_PKEY
*b
)
282 return EVP_PKEY_parameters_eq(a
, b
);
285 int EVP_PKEY_parameters_eq(const EVP_PKEY
*a
, const EVP_PKEY
*b
)
288 * TODO: clean up legacy stuff from this function when legacy support
292 if (a
->keymgmt
!= NULL
|| b
->keymgmt
!= NULL
)
293 return evp_pkey_cmp_any(a
, b
, SELECT_PARAMETERS
);
295 /* All legacy keys */
296 if (a
->type
!= b
->type
)
298 if (a
->ameth
!= NULL
&& a
->ameth
->param_cmp
!= NULL
)
299 return a
->ameth
->param_cmp(a
, b
);
303 int EVP_PKEY_cmp(const EVP_PKEY
*a
, const EVP_PKEY
*b
)
305 return EVP_PKEY_eq(a
, b
);
308 int EVP_PKEY_eq(const EVP_PKEY
*a
, const EVP_PKEY
*b
)
311 * TODO: clean up legacy stuff from this function when legacy support
315 if (a
->keymgmt
!= NULL
|| b
->keymgmt
!= NULL
)
316 return evp_pkey_cmp_any(a
, b
, (SELECT_PARAMETERS
317 | OSSL_KEYMGMT_SELECT_PUBLIC_KEY
));
319 /* All legacy keys */
320 if (a
->type
!= b
->type
)
323 if (a
->ameth
!= NULL
) {
325 /* Compare parameters if the algorithm has them */
326 if (a
->ameth
->param_cmp
!= NULL
) {
327 ret
= a
->ameth
->param_cmp(a
, b
);
332 if (a
->ameth
->pub_cmp
!= NULL
)
333 return a
->ameth
->pub_cmp(a
, b
);
340 static EVP_PKEY
*new_raw_key_int(OSSL_LIB_CTX
*libctx
,
345 const unsigned char *key
,
349 EVP_PKEY
*pkey
= NULL
;
350 EVP_PKEY_CTX
*ctx
= NULL
;
351 const EVP_PKEY_ASN1_METHOD
*ameth
= NULL
;
354 # ifndef OPENSSL_NO_ENGINE
355 /* Check if there is an Engine for this type */
360 ameth
= EVP_PKEY_asn1_find_str(&tmpe
, strtype
, -1);
361 else if (nidtype
!= EVP_PKEY_NONE
)
362 ameth
= EVP_PKEY_asn1_find(&tmpe
, nidtype
);
364 /* If tmpe is NULL then no engine is claiming to support this type */
372 if (e
== NULL
&& ameth
== NULL
) {
374 * No engine is claiming to support this type, so lets see if we have
377 ctx
= EVP_PKEY_CTX_new_from_name(libctx
,
378 strtype
!= NULL
? strtype
379 : OBJ_nid2sn(nidtype
),
383 /* May fail if no provider available */
385 if (EVP_PKEY_key_fromdata_init(ctx
) == 1) {
386 OSSL_PARAM params
[] = { OSSL_PARAM_END
, OSSL_PARAM_END
};
388 ERR_clear_last_mark();
389 params
[0] = OSSL_PARAM_construct_octet_string(
390 key_is_priv
? OSSL_PKEY_PARAM_PRIV_KEY
391 : OSSL_PKEY_PARAM_PUB_KEY
,
394 if (EVP_PKEY_fromdata(ctx
, &pkey
, params
) != 1) {
395 ERR_raise(ERR_LIB_EVP
, EVP_R_KEY_SETUP_FAILED
);
399 EVP_PKEY_CTX_free(ctx
);
404 /* else not supported so fallback to legacy */
407 /* Legacy code path */
409 pkey
= EVP_PKEY_new();
411 ERR_raise(ERR_LIB_EVP
, ERR_R_MALLOC_FAILURE
);
415 if (!pkey_set_type(pkey
, e
, nidtype
, strtype
, -1, NULL
)) {
416 /* EVPerr already called */
420 if (!ossl_assert(pkey
->ameth
!= NULL
))
424 if (pkey
->ameth
->set_priv_key
== NULL
) {
425 ERR_raise(ERR_LIB_EVP
, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE
);
429 if (!pkey
->ameth
->set_priv_key(pkey
, key
, len
)) {
430 ERR_raise(ERR_LIB_EVP
, EVP_R_KEY_SETUP_FAILED
);
434 if (pkey
->ameth
->set_pub_key
== NULL
) {
435 ERR_raise(ERR_LIB_EVP
, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE
);
439 if (!pkey
->ameth
->set_pub_key(pkey
, key
, len
)) {
440 ERR_raise(ERR_LIB_EVP
, EVP_R_KEY_SETUP_FAILED
);
451 EVP_PKEY_CTX_free(ctx
);
455 EVP_PKEY
*EVP_PKEY_new_raw_private_key_ex(OSSL_LIB_CTX
*libctx
,
458 const unsigned char *priv
, size_t len
)
460 return new_raw_key_int(libctx
, keytype
, propq
, EVP_PKEY_NONE
, NULL
, priv
,
464 EVP_PKEY
*EVP_PKEY_new_raw_private_key(int type
, ENGINE
*e
,
465 const unsigned char *priv
,
468 return new_raw_key_int(NULL
, NULL
, NULL
, type
, e
, priv
, len
, 1);
471 EVP_PKEY
*EVP_PKEY_new_raw_public_key_ex(OSSL_LIB_CTX
*libctx
,
472 const char *keytype
, const char *propq
,
473 const unsigned char *pub
, size_t len
)
475 return new_raw_key_int(libctx
, keytype
, propq
, EVP_PKEY_NONE
, NULL
, pub
,
479 EVP_PKEY
*EVP_PKEY_new_raw_public_key(int type
, ENGINE
*e
,
480 const unsigned char *pub
,
483 return new_raw_key_int(NULL
, NULL
, NULL
, type
, e
, pub
, len
, 0);
486 struct raw_key_details_st
493 static OSSL_CALLBACK get_raw_key_details
;
494 static int get_raw_key_details(const OSSL_PARAM params
[], void *arg
)
496 const OSSL_PARAM
*p
= NULL
;
497 struct raw_key_details_st
*raw_key
= arg
;
499 if (raw_key
->selection
== OSSL_KEYMGMT_SELECT_PRIVATE_KEY
) {
500 if ((p
= OSSL_PARAM_locate_const(params
, OSSL_PKEY_PARAM_PRIV_KEY
))
502 return OSSL_PARAM_get_octet_string(p
, (void **)raw_key
->key
,
503 SIZE_MAX
, raw_key
->len
);
504 } else if (raw_key
->selection
== OSSL_KEYMGMT_SELECT_PUBLIC_KEY
) {
505 if ((p
= OSSL_PARAM_locate_const(params
, OSSL_PKEY_PARAM_PUB_KEY
))
507 return OSSL_PARAM_get_octet_string(p
, (void **)raw_key
->key
,
508 SIZE_MAX
, raw_key
->len
);
514 int EVP_PKEY_get_raw_private_key(const EVP_PKEY
*pkey
, unsigned char *priv
,
517 if (pkey
->keymgmt
!= NULL
) {
518 struct raw_key_details_st raw_key
;
520 raw_key
.key
= priv
== NULL
? NULL
: &priv
;
522 raw_key
.selection
= OSSL_KEYMGMT_SELECT_PRIVATE_KEY
;
524 return evp_keymgmt_util_export(pkey
, OSSL_KEYMGMT_SELECT_PRIVATE_KEY
,
525 get_raw_key_details
, &raw_key
);
528 if (pkey
->ameth
== NULL
) {
529 ERR_raise(ERR_LIB_EVP
, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE
);
533 if (pkey
->ameth
->get_priv_key
== NULL
) {
534 ERR_raise(ERR_LIB_EVP
, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE
);
538 if (!pkey
->ameth
->get_priv_key(pkey
, priv
, len
)) {
539 ERR_raise(ERR_LIB_EVP
, EVP_R_GET_RAW_KEY_FAILED
);
546 int EVP_PKEY_get_raw_public_key(const EVP_PKEY
*pkey
, unsigned char *pub
,
549 if (pkey
->keymgmt
!= NULL
) {
550 struct raw_key_details_st raw_key
;
552 raw_key
.key
= pub
== NULL
? NULL
: &pub
;
554 raw_key
.selection
= OSSL_KEYMGMT_SELECT_PUBLIC_KEY
;
556 return evp_keymgmt_util_export(pkey
, OSSL_KEYMGMT_SELECT_PUBLIC_KEY
,
557 get_raw_key_details
, &raw_key
);
560 if (pkey
->ameth
== NULL
) {
561 ERR_raise(ERR_LIB_EVP
, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE
);
565 if (pkey
->ameth
->get_pub_key
== NULL
) {
566 ERR_raise(ERR_LIB_EVP
, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE
);
570 if (!pkey
->ameth
->get_pub_key(pkey
, pub
, len
)) {
571 ERR_raise(ERR_LIB_EVP
, EVP_R_GET_RAW_KEY_FAILED
);
578 static EVP_PKEY
*new_cmac_key_int(const unsigned char *priv
, size_t len
,
579 const char *cipher_name
,
580 const EVP_CIPHER
*cipher
,
581 OSSL_LIB_CTX
*libctx
,
582 const char *propq
, ENGINE
*e
)
584 # ifndef OPENSSL_NO_CMAC
585 # ifndef OPENSSL_NO_ENGINE
586 const char *engine_id
= e
!= NULL
? ENGINE_get_id(e
) : NULL
;
588 OSSL_PARAM params
[5], *p
= params
;
589 EVP_PKEY
*pkey
= NULL
;
593 cipher_name
= EVP_CIPHER_name(cipher
);
595 if (cipher_name
== NULL
) {
596 ERR_raise(ERR_LIB_EVP
, EVP_R_KEY_SETUP_FAILED
);
600 ctx
= EVP_PKEY_CTX_new_from_name(libctx
, "CMAC", propq
);
604 if (!EVP_PKEY_key_fromdata_init(ctx
)) {
605 ERR_raise(ERR_LIB_EVP
, EVP_R_KEY_SETUP_FAILED
);
609 *p
++ = OSSL_PARAM_construct_octet_string(OSSL_PKEY_PARAM_PRIV_KEY
,
611 *p
++ = OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_CIPHER
,
612 (char *)cipher_name
, 0);
614 *p
++ = OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_PROPERTIES
,
616 # ifndef OPENSSL_NO_ENGINE
617 if (engine_id
!= NULL
)
618 *p
++ = OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_ENGINE
,
619 (char *)engine_id
, 0);
621 *p
= OSSL_PARAM_construct_end();
623 if (!EVP_PKEY_fromdata(ctx
, &pkey
, params
)) {
624 ERR_raise(ERR_LIB_EVP
, EVP_R_KEY_SETUP_FAILED
);
629 EVP_PKEY_CTX_free(ctx
);
633 ERR_raise(ERR_LIB_EVP
, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE
);
638 EVP_PKEY
*EVP_PKEY_new_CMAC_key(ENGINE
*e
, const unsigned char *priv
,
639 size_t len
, const EVP_CIPHER
*cipher
)
641 return new_cmac_key_int(priv
, len
, NULL
, cipher
, NULL
, NULL
, e
);
644 int EVP_PKEY_set_type(EVP_PKEY
*pkey
, int type
)
646 return pkey_set_type(pkey
, NULL
, type
, NULL
, -1, NULL
);
649 int EVP_PKEY_set_type_str(EVP_PKEY
*pkey
, const char *str
, int len
)
651 return pkey_set_type(pkey
, NULL
, EVP_PKEY_NONE
, str
, len
, NULL
);
654 #ifndef OPENSSL_NO_DEPRECATED_3_0
655 int EVP_PKEY_set_alias_type(EVP_PKEY
*pkey
, int type
)
657 if (!evp_pkey_is_legacy(pkey
)) {
658 const char *name
= OBJ_nid2sn(type
);
660 if (name
!= NULL
&& EVP_PKEY_is_a(pkey
, name
))
663 ERR_raise(ERR_LIB_EVP
, EVP_R_INVALID_OPERATION
);
667 if (pkey
->type
== type
) {
668 return 1; /* it already is that type */
672 * The application is requesting to alias this to a different pkey type,
673 * but not one that resolves to the base type.
675 if (EVP_PKEY_type(type
) != EVP_PKEY_base_id(pkey
)) {
676 ERR_raise(ERR_LIB_EVP
, EVP_R_UNSUPPORTED_ALGORITHM
);
685 # ifndef OPENSSL_NO_ENGINE
686 int EVP_PKEY_set1_engine(EVP_PKEY
*pkey
, ENGINE
*e
)
689 if (!ENGINE_init(e
)) {
690 ERR_raise(ERR_LIB_EVP
, ERR_R_ENGINE_LIB
);
693 if (ENGINE_get_pkey_meth(e
, pkey
->type
) == NULL
) {
695 ERR_raise(ERR_LIB_EVP
, EVP_R_UNSUPPORTED_ALGORITHM
);
699 ENGINE_finish(pkey
->pmeth_engine
);
700 pkey
->pmeth_engine
= e
;
704 ENGINE
*EVP_PKEY_get0_engine(const EVP_PKEY
*pkey
)
709 int EVP_PKEY_assign(EVP_PKEY
*pkey
, int type
, void *key
)
713 #ifndef OPENSSL_NO_EC
714 if ((key
!= NULL
) && (EVP_PKEY_type(type
) == EVP_PKEY_EC
)) {
715 const EC_GROUP
*group
= EC_KEY_get0_group(key
);
717 if (group
!= NULL
&& EC_GROUP_get_curve_name(group
) == NID_sm2
)
718 alias
= EVP_PKEY_SM2
;
722 if (pkey
== NULL
|| !EVP_PKEY_set_type(pkey
, type
))
724 if (!EVP_PKEY_set_alias_type(pkey
, alias
))
726 pkey
->pkey
.ptr
= key
;
727 return (key
!= NULL
);
730 void *EVP_PKEY_get0(const EVP_PKEY
*pkey
)
734 if (!evp_pkey_downgrade((EVP_PKEY
*)pkey
)) {
735 ERR_raise(ERR_LIB_EVP
, EVP_R_INACCESSIBLE_KEY
);
738 return pkey
->pkey
.ptr
;
741 const unsigned char *EVP_PKEY_get0_hmac(const EVP_PKEY
*pkey
, size_t *len
)
743 ASN1_OCTET_STRING
*os
= NULL
;
744 if (pkey
->type
!= EVP_PKEY_HMAC
) {
745 ERR_raise(ERR_LIB_EVP
, EVP_R_EXPECTING_AN_HMAC_KEY
);
748 os
= EVP_PKEY_get0(pkey
);
753 # ifndef OPENSSL_NO_POLY1305
754 const unsigned char *EVP_PKEY_get0_poly1305(const EVP_PKEY
*pkey
, size_t *len
)
756 ASN1_OCTET_STRING
*os
= NULL
;
757 if (pkey
->type
!= EVP_PKEY_POLY1305
) {
758 ERR_raise(ERR_LIB_EVP
, EVP_R_EXPECTING_A_POLY1305_KEY
);
761 os
= EVP_PKEY_get0(pkey
);
767 # ifndef OPENSSL_NO_SIPHASH
768 const unsigned char *EVP_PKEY_get0_siphash(const EVP_PKEY
*pkey
, size_t *len
)
770 ASN1_OCTET_STRING
*os
= NULL
;
772 if (pkey
->type
!= EVP_PKEY_SIPHASH
) {
773 ERR_raise(ERR_LIB_EVP
, EVP_R_EXPECTING_A_SIPHASH_KEY
);
776 os
= EVP_PKEY_get0(pkey
);
782 # ifndef OPENSSL_NO_DSA
783 DSA
*EVP_PKEY_get0_DSA(const EVP_PKEY
*pkey
)
785 if (!evp_pkey_downgrade((EVP_PKEY
*)pkey
)) {
786 ERR_raise(ERR_LIB_EVP
, EVP_R_INACCESSIBLE_KEY
);
789 if (pkey
->type
!= EVP_PKEY_DSA
) {
790 ERR_raise(ERR_LIB_EVP
, EVP_R_EXPECTING_A_DSA_KEY
);
793 return pkey
->pkey
.dsa
;
796 int EVP_PKEY_set1_DSA(EVP_PKEY
*pkey
, DSA
*key
)
798 int ret
= EVP_PKEY_assign_DSA(pkey
, key
);
803 DSA
*EVP_PKEY_get1_DSA(EVP_PKEY
*pkey
)
805 DSA
*ret
= EVP_PKEY_get0_DSA(pkey
);
810 # endif /* OPENSSL_NO_DSA */
811 #endif /* FIPS_MODULE */
814 # ifndef OPENSSL_NO_EC
815 static ECX_KEY
*evp_pkey_get0_ECX_KEY(const EVP_PKEY
*pkey
, int type
)
817 if (!evp_pkey_downgrade((EVP_PKEY
*)pkey
)) {
818 ERR_raise(ERR_LIB_EVP
, EVP_R_INACCESSIBLE_KEY
);
821 if (EVP_PKEY_base_id(pkey
) != type
) {
822 ERR_raise(ERR_LIB_EVP
, EVP_R_EXPECTING_A_ECX_KEY
);
825 return pkey
->pkey
.ecx
;
828 static ECX_KEY
*evp_pkey_get1_ECX_KEY(EVP_PKEY
*pkey
, int type
)
830 ECX_KEY
*ret
= evp_pkey_get0_ECX_KEY(pkey
, type
);
836 # define IMPLEMENT_ECX_VARIANT(NAME) \
837 ECX_KEY *evp_pkey_get1_##NAME(EVP_PKEY *pkey) \
839 return evp_pkey_get1_ECX_KEY(pkey, EVP_PKEY_##NAME); \
841 IMPLEMENT_ECX_VARIANT(X25519
)
842 IMPLEMENT_ECX_VARIANT(X448
)
843 IMPLEMENT_ECX_VARIANT(ED25519
)
844 IMPLEMENT_ECX_VARIANT(ED448
)
848 # if !defined(OPENSSL_NO_DH) && !defined(OPENSSL_NO_DEPRECATED_3_0)
850 int EVP_PKEY_set1_DH(EVP_PKEY
*pkey
, DH
*key
)
852 int type
= DH_get0_q(key
) == NULL
? EVP_PKEY_DH
: EVP_PKEY_DHX
;
853 int ret
= EVP_PKEY_assign(pkey
, type
, key
);
860 DH
*EVP_PKEY_get0_DH(const EVP_PKEY
*pkey
)
862 if (!evp_pkey_downgrade((EVP_PKEY
*)pkey
)) {
863 ERR_raise(ERR_LIB_EVP
, EVP_R_INACCESSIBLE_KEY
);
866 if (pkey
->type
!= EVP_PKEY_DH
&& pkey
->type
!= EVP_PKEY_DHX
) {
867 ERR_raise(ERR_LIB_EVP
, EVP_R_EXPECTING_A_DH_KEY
);
870 return pkey
->pkey
.dh
;
873 DH
*EVP_PKEY_get1_DH(EVP_PKEY
*pkey
)
875 DH
*ret
= EVP_PKEY_get0_DH(pkey
);
882 int EVP_PKEY_type(int type
)
885 const EVP_PKEY_ASN1_METHOD
*ameth
;
887 ameth
= EVP_PKEY_asn1_find(&e
, type
);
889 ret
= ameth
->pkey_id
;
892 # ifndef OPENSSL_NO_ENGINE
898 int EVP_PKEY_id(const EVP_PKEY
*pkey
)
903 int EVP_PKEY_base_id(const EVP_PKEY
*pkey
)
905 return EVP_PKEY_type(pkey
->type
);
910 * These hard coded cases are pure hackery to get around the fact
911 * that names in crypto/objects/objects.txt are a mess. There is
912 * no "EC", and "RSA" leads to the NID for 2.5.8.1.1, an OID that's
913 * fallen out in favor of { pkcs-1 1 }, i.e. 1.2.840.113549.1.1.1,
914 * the NID of which is used for EVP_PKEY_RSA. Strangely enough,
915 * "DSA" is accurate... but still, better be safe and hard-code
916 * names that we know.
917 * On a similar topic, EVP_PKEY_type(EVP_PKEY_SM2) will result in
918 * EVP_PKEY_EC, because of aliasing.
919 * TODO Clean this away along with all other #legacy support.
921 static const OSSL_ITEM standard_name2type
[] = {
922 { EVP_PKEY_RSA
, "RSA" },
923 { EVP_PKEY_RSA_PSS
, "RSA-PSS" },
924 { EVP_PKEY_EC
, "EC" },
925 { EVP_PKEY_ED25519
, "ED25519" },
926 { EVP_PKEY_ED448
, "ED448" },
927 { EVP_PKEY_X25519
, "X25519" },
928 { EVP_PKEY_X448
, "X448" },
929 { EVP_PKEY_SM2
, "SM2" },
930 { EVP_PKEY_DH
, "DH" },
931 { EVP_PKEY_DHX
, "X9.42 DH" },
932 { EVP_PKEY_DHX
, "DHX" },
933 { EVP_PKEY_DSA
, "DSA" },
936 int evp_pkey_name2type(const char *name
)
941 for (i
= 0; i
< OSSL_NELEM(standard_name2type
); i
++) {
942 if (strcasecmp(name
, standard_name2type
[i
].ptr
) == 0)
943 return (int)standard_name2type
[i
].id
;
946 if ((type
= EVP_PKEY_type(OBJ_sn2nid(name
))) != NID_undef
)
948 return EVP_PKEY_type(OBJ_ln2nid(name
));
951 const char *evp_pkey_type2name(int type
)
955 for (i
= 0; i
< OSSL_NELEM(standard_name2type
); i
++) {
956 if (type
== (int)standard_name2type
[i
].id
)
957 return standard_name2type
[i
].ptr
;
960 return OBJ_nid2sn(type
);
964 int EVP_PKEY_is_a(const EVP_PKEY
*pkey
, const char *name
)
967 if (pkey
->keymgmt
== NULL
) {
968 int type
= evp_pkey_name2type(name
);
970 return pkey
->type
== type
;
973 return EVP_KEYMGMT_is_a(pkey
->keymgmt
, name
);
976 void EVP_PKEY_typenames_do_all(const EVP_PKEY
*pkey
,
977 void (*fn
)(const char *name
, void *data
),
980 if (!evp_pkey_is_typed(pkey
))
983 if (!evp_pkey_is_provided(pkey
)) {
984 const char *name
= OBJ_nid2sn(EVP_PKEY_id(pkey
));
989 EVP_KEYMGMT_names_do_all(pkey
->keymgmt
, fn
, data
);
992 int EVP_PKEY_can_sign(const EVP_PKEY
*pkey
)
994 if (pkey
->keymgmt
== NULL
) {
995 switch (EVP_PKEY_base_id(pkey
)) {
998 #ifndef OPENSSL_NO_DSA
1002 #ifndef OPENSSL_NO_EC
1003 case EVP_PKEY_ED25519
:
1004 case EVP_PKEY_ED448
:
1006 case EVP_PKEY_EC
: /* Including SM2 */
1007 return EC_KEY_can_sign(pkey
->pkey
.ec
);
1013 const OSSL_PROVIDER
*prov
= EVP_KEYMGMT_provider(pkey
->keymgmt
);
1014 OSSL_LIB_CTX
*libctx
= ossl_provider_libctx(prov
);
1015 const char *supported_sig
=
1016 pkey
->keymgmt
->query_operation_name
!= NULL
1017 ? pkey
->keymgmt
->query_operation_name(OSSL_OP_SIGNATURE
)
1018 : evp_first_name(prov
, pkey
->keymgmt
->name_id
);
1019 EVP_SIGNATURE
*signature
= NULL
;
1021 signature
= EVP_SIGNATURE_fetch(libctx
, supported_sig
, NULL
);
1022 if (signature
!= NULL
) {
1023 EVP_SIGNATURE_free(signature
);
1030 static int print_reset_indent(BIO
**out
, int pop_f_prefix
, long saved_indent
)
1032 BIO_set_indent(*out
, saved_indent
);
1034 BIO
*next
= BIO_pop(*out
);
1042 static int print_set_indent(BIO
**out
, int *pop_f_prefix
, long *saved_indent
,
1048 long i
= BIO_get_indent(*out
);
1050 *saved_indent
= (i
< 0 ? 0 : i
);
1051 if (BIO_set_indent(*out
, indent
) <= 0) {
1052 if ((*out
= BIO_push(BIO_new(BIO_f_prefix()), *out
)) == NULL
)
1056 if (BIO_set_indent(*out
, indent
) <= 0) {
1057 print_reset_indent(out
, *pop_f_prefix
, *saved_indent
);
1064 static int unsup_alg(BIO
*out
, const EVP_PKEY
*pkey
, int indent
,
1067 return BIO_indent(out
, indent
, 128)
1068 && BIO_printf(out
, "%s algorithm \"%s\" unsupported\n",
1069 kstr
, OBJ_nid2ln(pkey
->type
)) > 0;
1072 static int print_pkey(const EVP_PKEY
*pkey
, BIO
*out
, int indent
,
1073 int selection
/* For provided encoding */,
1074 const char *propquery
/* For provided encoding */,
1075 int (*legacy_print
)(BIO
*out
, const EVP_PKEY
*pkey
,
1076 int indent
, ASN1_PCTX
*pctx
),
1077 ASN1_PCTX
*legacy_pctx
/* For legacy print */)
1081 OSSL_ENCODER_CTX
*ctx
= NULL
;
1082 int ret
= -2; /* default to unsupported */
1084 if (!print_set_indent(&out
, &pop_f_prefix
, &saved_indent
, indent
))
1087 ctx
= OSSL_ENCODER_CTX_new_by_EVP_PKEY(pkey
, selection
, "TEXT", NULL
,
1089 if (OSSL_ENCODER_CTX_get_num_encoders(ctx
) != 0)
1090 ret
= OSSL_ENCODER_to_bio(ctx
, out
);
1091 OSSL_ENCODER_CTX_free(ctx
);
1096 /* legacy fallback */
1097 if (legacy_print
!= NULL
)
1098 ret
= legacy_print(out
, pkey
, 0, legacy_pctx
);
1100 ret
= unsup_alg(out
, pkey
, 0, "Public Key");
1103 print_reset_indent(&out
, pop_f_prefix
, saved_indent
);
1107 int EVP_PKEY_print_public(BIO
*out
, const EVP_PKEY
*pkey
,
1108 int indent
, ASN1_PCTX
*pctx
)
1110 return print_pkey(pkey
, out
, indent
, EVP_PKEY_PUBLIC_KEY
, NULL
,
1111 (pkey
->ameth
!= NULL
? pkey
->ameth
->pub_print
: NULL
),
1115 int EVP_PKEY_print_private(BIO
*out
, const EVP_PKEY
*pkey
,
1116 int indent
, ASN1_PCTX
*pctx
)
1118 return print_pkey(pkey
, out
, indent
, EVP_PKEY_KEYPAIR
, NULL
,
1119 (pkey
->ameth
!= NULL
? pkey
->ameth
->priv_print
: NULL
),
1123 int EVP_PKEY_print_params(BIO
*out
, const EVP_PKEY
*pkey
,
1124 int indent
, ASN1_PCTX
*pctx
)
1126 return print_pkey(pkey
, out
, indent
, EVP_PKEY_KEY_PARAMETERS
, NULL
,
1127 (pkey
->ameth
!= NULL
? pkey
->ameth
->param_print
: NULL
),
1131 static void mdname2nid(const char *mdname
, void *data
)
1133 int *nid
= (int *)data
;
1135 if (*nid
!= NID_undef
)
1138 *nid
= OBJ_sn2nid(mdname
);
1139 if (*nid
== NID_undef
)
1140 *nid
= OBJ_ln2nid(mdname
);
1143 static int legacy_asn1_ctrl_to_param(EVP_PKEY
*pkey
, int op
,
1144 int arg1
, void *arg2
)
1146 if (pkey
->keymgmt
== NULL
)
1149 case ASN1_PKEY_CTRL_DEFAULT_MD_NID
:
1151 char mdname
[80] = "";
1152 int rv
= EVP_PKEY_get_default_digest_name(pkey
, mdname
,
1157 OSSL_LIB_CTX
*libctx
= ossl_provider_libctx(pkey
->keymgmt
->prov
);
1158 /* Make sure the MD is in the namemap if available */
1159 EVP_MD
*md
= EVP_MD_fetch(libctx
, mdname
, NULL
);
1160 OSSL_NAMEMAP
*namemap
= ossl_namemap_stored(libctx
);
1161 int nid
= NID_undef
;
1164 * The only reason to fetch the MD was to make sure it is in the
1165 * namemap. We can immediately free it.
1168 mdnum
= ossl_namemap_name2num(namemap
, mdname
);
1173 * We have the namemap number - now we need to find the
1176 ossl_namemap_doall_names(namemap
, mdnum
, mdname2nid
, &nid
);
1186 static int evp_pkey_asn1_ctrl(EVP_PKEY
*pkey
, int op
, int arg1
, void *arg2
)
1188 if (pkey
->ameth
== NULL
)
1189 return legacy_asn1_ctrl_to_param(pkey
, op
, arg1
, arg2
);
1190 if (pkey
->ameth
->pkey_ctrl
== NULL
)
1192 return pkey
->ameth
->pkey_ctrl(pkey
, op
, arg1
, arg2
);
1195 int EVP_PKEY_get_default_digest_nid(EVP_PKEY
*pkey
, int *pnid
)
1197 return evp_pkey_asn1_ctrl(pkey
, ASN1_PKEY_CTRL_DEFAULT_MD_NID
, 0, pnid
);
1200 int EVP_PKEY_get_default_digest_name(EVP_PKEY
*pkey
,
1201 char *mdname
, size_t mdname_sz
)
1203 if (pkey
->ameth
== NULL
)
1204 return evp_keymgmt_util_get_deflt_digest_name(pkey
->keymgmt
,
1209 int nid
= NID_undef
;
1210 int rv
= EVP_PKEY_get_default_digest_nid(pkey
, &nid
);
1211 const char *name
= rv
> 0 ? OBJ_nid2sn(nid
) : NULL
;
1214 OPENSSL_strlcpy(mdname
, name
, mdname_sz
);
1219 int EVP_PKEY_get_group_name(const EVP_PKEY
*pkey
, char *gname
, size_t gname_sz
,
1222 if (evp_pkey_is_legacy(pkey
)) {
1223 const char *name
= NULL
;
1225 switch (EVP_PKEY_base_id(pkey
)) {
1226 #ifndef OPENSSL_NO_EC
1229 const EC_GROUP
*grp
= EC_KEY_get0_group(EVP_PKEY_get0_EC_KEY(pkey
));
1230 int nid
= NID_undef
;
1233 nid
= EC_GROUP_get_curve_name(grp
);
1234 if (nid
!= NID_undef
)
1235 name
= ec_curve_nid2name(nid
);
1239 #ifndef OPENSSL_NO_DH
1242 DH
*dh
= EVP_PKEY_get0_DH(pkey
);
1243 int uid
= DH_get_nid(dh
);
1245 if (uid
!= NID_undef
) {
1246 const DH_NAMED_GROUP
*dh_group
=
1247 ossl_ffc_uid_to_dh_named_group(uid
);
1249 name
= ossl_ffc_named_group_get_name(dh_group
);
1258 if (gname_len
!= NULL
)
1259 *gname_len
= (name
== NULL
? 0 : strlen(name
));
1262 OPENSSL_strlcpy(gname
, name
, gname_sz
);
1265 } else if (evp_pkey_is_provided(pkey
)) {
1266 if (EVP_PKEY_get_utf8_string_param(pkey
, OSSL_PKEY_PARAM_GROUP_NAME
,
1267 gname
, gname_sz
, gname_len
))
1270 ERR_raise(ERR_LIB_EVP
, EVP_R_INVALID_KEY
);
1274 ERR_raise(ERR_LIB_EVP
, EVP_R_UNSUPPORTED_KEY_TYPE
);
1278 int EVP_PKEY_supports_digest_nid(EVP_PKEY
*pkey
, int nid
)
1280 int rv
, default_nid
;
1282 rv
= evp_pkey_asn1_ctrl(pkey
, ASN1_PKEY_CTRL_SUPPORTS_MD_NID
, nid
, NULL
);
1285 * If there is a mandatory default digest and this isn't it, then
1286 * the answer is 'no'.
1288 rv
= EVP_PKEY_get_default_digest_nid(pkey
, &default_nid
);
1290 return (nid
== default_nid
);
1291 /* zero is an error from EVP_PKEY_get_default_digest_nid() */
1298 int EVP_PKEY_set1_encoded_public_key(EVP_PKEY
*pkey
, const unsigned char *pub
,
1301 if (pkey
->ameth
== NULL
) {
1302 OSSL_PARAM params
[2] = { OSSL_PARAM_END
, OSSL_PARAM_END
};
1304 if (pkey
->keymgmt
== NULL
|| pkey
->keydata
== NULL
)
1308 OSSL_PARAM_construct_octet_string(OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY
,
1309 (unsigned char *)pub
, publen
);
1310 return evp_keymgmt_set_params(pkey
->keymgmt
, pkey
->keydata
, params
);
1313 if (publen
> INT_MAX
)
1315 /* Historically this function was EVP_PKEY_set1_tls_encodedpoint */
1316 if (evp_pkey_asn1_ctrl(pkey
, ASN1_PKEY_CTRL_SET1_TLS_ENCPT
, publen
,
1322 size_t EVP_PKEY_get1_encoded_public_key(EVP_PKEY
*pkey
, unsigned char **ppub
)
1326 if (pkey
->ameth
== NULL
) {
1327 OSSL_PARAM params
[2] = { OSSL_PARAM_END
, OSSL_PARAM_END
};
1329 if (pkey
->keymgmt
== NULL
|| pkey
->keydata
== NULL
)
1333 OSSL_PARAM_construct_octet_string(OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY
,
1335 if (!evp_keymgmt_get_params(pkey
->keymgmt
, pkey
->keydata
, params
))
1338 *ppub
= OPENSSL_malloc(params
[0].return_size
);
1343 OSSL_PARAM_construct_octet_string(OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY
,
1344 *ppub
, params
[0].return_size
);
1345 if (!evp_keymgmt_get_params(pkey
->keymgmt
, pkey
->keydata
, params
))
1348 return params
[0].return_size
;
1352 rv
= evp_pkey_asn1_ctrl(pkey
, ASN1_PKEY_CTRL_GET1_TLS_ENCPT
, 0, ppub
);
1358 #endif /* FIPS_MODULE */
1360 /*- All methods below can also be used in FIPS_MODULE */
1363 * This reset function must be used very carefully, as it literally throws
1364 * away everything in an EVP_PKEY without freeing them, and may cause leaks
1365 * of memory, what have you.
1366 * The only reason we have this is to have the same code for EVP_PKEY_new()
1367 * and evp_pkey_downgrade().
1369 static int evp_pkey_reset_unlocked(EVP_PKEY
*pk
)
1374 if (pk
->lock
!= NULL
) {
1375 const size_t offset
= (unsigned char *)&pk
->lock
- (unsigned char *)pk
;
1377 memset(pk
, 0, offset
);
1378 memset((unsigned char *)pk
+ offset
+ sizeof(pk
->lock
),
1380 sizeof(*pk
) - offset
- sizeof(pk
->lock
));
1382 /* EVP_PKEY_new uses zalloc so no need to call memset if pk->lock is NULL */
1384 pk
->type
= EVP_PKEY_NONE
;
1385 pk
->save_type
= EVP_PKEY_NONE
;
1387 pk
->save_parameters
= 1;
1392 EVP_PKEY
*EVP_PKEY_new(void)
1394 EVP_PKEY
*ret
= OPENSSL_zalloc(sizeof(*ret
));
1397 ERR_raise(ERR_LIB_EVP
, ERR_R_MALLOC_FAILURE
);
1401 if (!evp_pkey_reset_unlocked(ret
))
1404 ret
->lock
= CRYPTO_THREAD_lock_new();
1405 if (ret
->lock
== NULL
) {
1406 EVPerr(ERR_LIB_EVP
, ERR_R_MALLOC_FAILURE
);
1411 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_EVP_PKEY
, ret
, &ret
->ex_data
)) {
1412 ERR_raise(ERR_LIB_EVP
, ERR_R_MALLOC_FAILURE
);
1419 CRYPTO_THREAD_lock_free(ret
->lock
);
1425 * Setup a public key management method.
1427 * For legacy keys, either |type| or |str| is expected to have the type
1428 * information. In this case, the setup consists of finding an ASN1 method
1429 * and potentially an ENGINE, and setting those fields in |pkey|.
1431 * For provider side keys, |keymgmt| is expected to be non-NULL. In this
1432 * case, the setup consists of setting the |keymgmt| field in |pkey|.
1434 * If pkey is NULL just return 1 or 0 if the key management method exists.
1437 static int pkey_set_type(EVP_PKEY
*pkey
, ENGINE
*e
, int type
, const char *str
,
1438 int len
, EVP_KEYMGMT
*keymgmt
)
1441 const EVP_PKEY_ASN1_METHOD
*ameth
= NULL
;
1442 ENGINE
**eptr
= (e
== NULL
) ? &e
: NULL
;
1446 * The setups can't set both legacy and provider side methods.
1449 if (!ossl_assert(type
== EVP_PKEY_NONE
|| keymgmt
== NULL
)
1450 || !ossl_assert(e
== NULL
|| keymgmt
== NULL
)) {
1451 ERR_raise(ERR_LIB_EVP
, ERR_R_INTERNAL_ERROR
);
1459 free_it
= free_it
|| pkey
->pkey
.ptr
!= NULL
;
1461 free_it
= free_it
|| pkey
->keydata
!= NULL
;
1463 evp_pkey_free_it(pkey
);
1466 * If key type matches and a method exists then this lookup has
1467 * succeeded once so just indicate success.
1469 if (pkey
->type
!= EVP_PKEY_NONE
1470 && type
== pkey
->save_type
1471 && pkey
->ameth
!= NULL
)
1473 # ifndef OPENSSL_NO_ENGINE
1474 /* If we have ENGINEs release them */
1475 ENGINE_finish(pkey
->engine
);
1476 pkey
->engine
= NULL
;
1477 ENGINE_finish(pkey
->pmeth_engine
);
1478 pkey
->pmeth_engine
= NULL
;
1484 ameth
= EVP_PKEY_asn1_find_str(eptr
, str
, len
);
1485 else if (type
!= EVP_PKEY_NONE
)
1486 ameth
= EVP_PKEY_asn1_find(eptr
, type
);
1487 # ifndef OPENSSL_NO_ENGINE
1488 if (pkey
== NULL
&& eptr
!= NULL
)
1498 check
= check
&& ameth
== NULL
;
1500 check
= check
&& keymgmt
== NULL
;
1502 ERR_raise(ERR_LIB_EVP
, EVP_R_UNSUPPORTED_ALGORITHM
);
1507 if (keymgmt
!= NULL
&& !EVP_KEYMGMT_up_ref(keymgmt
)) {
1508 ERR_raise(ERR_LIB_EVP
, ERR_R_INTERNAL_ERROR
);
1512 pkey
->keymgmt
= keymgmt
;
1514 pkey
->save_type
= type
;
1519 * If the internal "origin" key is provider side, don't save |ameth|.
1520 * The main reason is that |ameth| is one factor to detect that the
1521 * internal "origin" key is a legacy one.
1523 if (keymgmt
== NULL
)
1524 pkey
->ameth
= ameth
;
1528 * The EVP_PKEY_ASN1_METHOD |pkey_id| retains its legacy key purpose
1529 * for any key type that has a legacy implementation, regardless of
1530 * if the internal key is a legacy or a provider side one. When
1531 * there is no legacy implementation for the key, the type becomes
1532 * EVP_PKEY_KEYMGMT, which indicates that one should be cautious
1533 * with functions that expect legacy internal keys.
1536 pkey
->type
= ameth
->pkey_id
;
1538 pkey
->type
= EVP_PKEY_KEYMGMT
;
1545 static void find_ameth(const char *name
, void *data
)
1547 const char **str
= data
;
1550 * The error messages from pkey_set_type() are uninteresting here,
1555 if (pkey_set_type(NULL
, NULL
, EVP_PKEY_NONE
, name
, strlen(name
),
1559 else if (str
[1] == NULL
)
1567 int EVP_PKEY_set_type_by_keymgmt(EVP_PKEY
*pkey
, EVP_KEYMGMT
*keymgmt
)
1570 # define EVP_PKEY_TYPE_STR str[0]
1571 # define EVP_PKEY_TYPE_STRLEN (str[0] == NULL ? -1 : (int)strlen(str[0]))
1573 * Find at most two strings that have an associated EVP_PKEY_ASN1_METHOD
1574 * Ideally, only one should be found. If two (or more) are found, the
1575 * match is ambiguous. This should never happen, but...
1577 const char *str
[2] = { NULL
, NULL
};
1579 EVP_KEYMGMT_names_do_all(keymgmt
, find_ameth
, &str
);
1580 if (str
[1] != NULL
) {
1581 ERR_raise(ERR_LIB_EVP
, ERR_R_INTERNAL_ERROR
);
1585 # define EVP_PKEY_TYPE_STR NULL
1586 # define EVP_PKEY_TYPE_STRLEN -1
1588 return pkey_set_type(pkey
, NULL
, EVP_PKEY_NONE
,
1589 EVP_PKEY_TYPE_STR
, EVP_PKEY_TYPE_STRLEN
,
1592 #undef EVP_PKEY_TYPE_STR
1593 #undef EVP_PKEY_TYPE_STRLEN
1596 int EVP_PKEY_up_ref(EVP_PKEY
*pkey
)
1600 if (CRYPTO_UP_REF(&pkey
->references
, &i
, pkey
->lock
) <= 0)
1603 REF_PRINT_COUNT("EVP_PKEY", pkey
);
1604 REF_ASSERT_ISNT(i
< 2);
1605 return ((i
> 1) ? 1 : 0);
1609 void evp_pkey_free_legacy(EVP_PKEY
*x
)
1611 if (x
->ameth
!= NULL
) {
1612 if (x
->ameth
->pkey_free
!= NULL
)
1613 x
->ameth
->pkey_free(x
);
1616 # ifndef OPENSSL_NO_ENGINE
1617 ENGINE_finish(x
->engine
);
1619 ENGINE_finish(x
->pmeth_engine
);
1620 x
->pmeth_engine
= NULL
;
1623 #endif /* FIPS_MODULE */
1625 static void evp_pkey_free_it(EVP_PKEY
*x
)
1627 /* internal function; x is never NULL */
1629 evp_keymgmt_util_clear_operation_cache(x
, 1);
1631 evp_pkey_free_legacy(x
);
1634 if (x
->keymgmt
!= NULL
) {
1635 evp_keymgmt_freedata(x
->keymgmt
, x
->keydata
);
1636 EVP_KEYMGMT_free(x
->keymgmt
);
1640 x
->type
= EVP_PKEY_NONE
;
1643 void EVP_PKEY_free(EVP_PKEY
*x
)
1650 CRYPTO_DOWN_REF(&x
->references
, &i
, x
->lock
);
1651 REF_PRINT_COUNT("EVP_PKEY", x
);
1654 REF_ASSERT_ISNT(i
< 0);
1655 evp_pkey_free_it(x
);
1657 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_EVP_PKEY
, x
, &x
->ex_data
);
1659 CRYPTO_THREAD_lock_free(x
->lock
);
1661 sk_X509_ATTRIBUTE_pop_free(x
->attributes
, X509_ATTRIBUTE_free
);
1666 int EVP_PKEY_size(const EVP_PKEY
*pkey
)
1671 size
= pkey
->cache
.size
;
1673 if (pkey
->ameth
!= NULL
&& pkey
->ameth
->pkey_size
!= NULL
)
1674 size
= pkey
->ameth
->pkey_size(pkey
);
1677 return size
< 0 ? 0 : size
;
1680 void *evp_pkey_export_to_provider(EVP_PKEY
*pk
, OSSL_LIB_CTX
*libctx
,
1681 EVP_KEYMGMT
**keymgmt
,
1682 const char *propquery
)
1684 EVP_KEYMGMT
*allocated_keymgmt
= NULL
;
1685 EVP_KEYMGMT
*tmp_keymgmt
= NULL
;
1686 void *keydata
= NULL
;
1692 /* No key data => nothing to export */
1695 check
= check
&& pk
->pkey
.ptr
== NULL
;
1697 check
= check
&& pk
->keydata
== NULL
;
1702 if (pk
->pkey
.ptr
!= NULL
) {
1704 * If the legacy key doesn't have an dirty counter or export function,
1707 if (pk
->ameth
->dirty_cnt
== NULL
|| pk
->ameth
->export_to
== NULL
)
1712 if (keymgmt
!= NULL
) {
1713 tmp_keymgmt
= *keymgmt
;
1718 * If no keymgmt was given or found, get a default keymgmt. We do so by
1719 * letting EVP_PKEY_CTX_new_from_pkey() do it for us, then we steal it.
1721 if (tmp_keymgmt
== NULL
) {
1722 EVP_PKEY_CTX
*ctx
= EVP_PKEY_CTX_new_from_pkey(libctx
, pk
, propquery
);
1724 tmp_keymgmt
= ctx
->keymgmt
;
1725 ctx
->keymgmt
= NULL
;
1726 EVP_PKEY_CTX_free(ctx
);
1729 /* If there's still no keymgmt to be had, give up */
1730 if (tmp_keymgmt
== NULL
)
1734 if (pk
->pkey
.ptr
!= NULL
) {
1738 * If the legacy "origin" hasn't changed since last time, we try
1739 * to find our keymgmt in the operation cache. If it has changed,
1740 * |i| remains zero, and we will clear the cache further down.
1742 if (pk
->ameth
->dirty_cnt(pk
) == pk
->dirty_cnt_copy
) {
1743 if (!CRYPTO_THREAD_read_lock(pk
->lock
))
1745 i
= evp_keymgmt_util_find_operation_cache_index(pk
, tmp_keymgmt
);
1748 * If |tmp_keymgmt| is present in the operation cache, it means
1749 * that export doesn't need to be redone. In that case, we take
1750 * token copies of the cached pointers, to have token success
1753 if (i
< OSSL_NELEM(pk
->operation_cache
)
1754 && pk
->operation_cache
[i
].keymgmt
!= NULL
) {
1755 keydata
= pk
->operation_cache
[i
].keydata
;
1756 CRYPTO_THREAD_unlock(pk
->lock
);
1759 CRYPTO_THREAD_unlock(pk
->lock
);
1763 * TODO(3.0) Right now, we assume we have ample space. We will have
1764 * to think about a cache aging scheme, though, if |i| indexes outside
1767 if (!ossl_assert(i
< OSSL_NELEM(pk
->operation_cache
)))
1770 /* Make sure that the keymgmt key type matches the legacy NID */
1771 if (!ossl_assert(EVP_KEYMGMT_is_a(tmp_keymgmt
, OBJ_nid2sn(pk
->type
))))
1774 if ((keydata
= evp_keymgmt_newdata(tmp_keymgmt
)) == NULL
)
1777 if (!pk
->ameth
->export_to(pk
, keydata
, tmp_keymgmt
, libctx
, propquery
)) {
1778 evp_keymgmt_freedata(tmp_keymgmt
, keydata
);
1784 * If the dirty counter changed since last time, then clear the
1785 * operation cache. In that case, we know that |i| is zero. Just
1786 * in case this is a re-export, we increment then decrement the
1787 * keymgmt reference counter.
1789 if (!EVP_KEYMGMT_up_ref(tmp_keymgmt
)) { /* refcnt++ */
1790 evp_keymgmt_freedata(tmp_keymgmt
, keydata
);
1795 if (!CRYPTO_THREAD_write_lock(pk
->lock
))
1797 if (pk
->ameth
->dirty_cnt(pk
) != pk
->dirty_cnt_copy
1798 && !evp_keymgmt_util_clear_operation_cache(pk
, 0)) {
1799 CRYPTO_THREAD_unlock(pk
->lock
);
1800 evp_keymgmt_freedata(tmp_keymgmt
, keydata
);
1802 EVP_KEYMGMT_free(tmp_keymgmt
);
1805 EVP_KEYMGMT_free(tmp_keymgmt
); /* refcnt-- */
1807 /* Add the new export to the operation cache */
1808 if (!evp_keymgmt_util_cache_keydata(pk
, i
, tmp_keymgmt
, keydata
)) {
1809 CRYPTO_THREAD_unlock(pk
->lock
);
1810 evp_keymgmt_freedata(tmp_keymgmt
, keydata
);
1815 /* Synchronize the dirty count */
1816 pk
->dirty_cnt_copy
= pk
->ameth
->dirty_cnt(pk
);
1818 CRYPTO_THREAD_unlock(pk
->lock
);
1821 #endif /* FIPS_MODULE */
1823 keydata
= evp_keymgmt_util_export_to_provider(pk
, tmp_keymgmt
);
1827 * If nothing was exported, |tmp_keymgmt| might point at a freed
1828 * EVP_KEYMGMT, so we clear it to be safe. It shouldn't be useful for
1829 * the caller either way in that case.
1831 if (keydata
== NULL
)
1834 if (keymgmt
!= NULL
)
1835 *keymgmt
= tmp_keymgmt
;
1837 EVP_KEYMGMT_free(allocated_keymgmt
);
1842 int evp_pkey_copy_downgraded(EVP_PKEY
**dest
, const EVP_PKEY
*src
)
1844 if (!ossl_assert(dest
!= NULL
))
1847 if (evp_pkey_is_assigned(src
) && evp_pkey_is_provided(src
)) {
1848 EVP_KEYMGMT
*keymgmt
= src
->keymgmt
;
1849 void *keydata
= src
->keydata
;
1850 int type
= src
->type
;
1851 const char *keytype
= NULL
;
1853 keytype
= evp_first_name(EVP_KEYMGMT_provider(keymgmt
),
1857 * If the type is EVP_PKEY_NONE, then we have a problem somewhere
1858 * else in our code. If it's not one of the well known EVP_PKEY_xxx
1859 * values, it should at least be EVP_PKEY_KEYMGMT at this point.
1860 * TODO(3.0) remove this check when we're confident that the rest
1861 * of the code treats this correctly.
1863 if (!ossl_assert(type
!= EVP_PKEY_NONE
)) {
1864 ERR_raise_data(ERR_LIB_EVP
, ERR_R_INTERNAL_ERROR
,
1865 "keymgmt key type = %s but legacy type = EVP_PKEY_NONE",
1870 /* Prefer the legacy key type name for error reporting */
1871 if (type
!= EVP_PKEY_KEYMGMT
)
1872 keytype
= OBJ_nid2sn(type
);
1874 /* Make sure we have a clean slate to copy into */
1876 *dest
= EVP_PKEY_new();
1878 evp_pkey_free_it(*dest
);
1880 if (EVP_PKEY_set_type(*dest
, type
)) {
1881 /* If the key is typed but empty, we're done */
1882 if (keydata
== NULL
)
1885 if ((*dest
)->ameth
->import_from
== NULL
) {
1886 ERR_raise_data(ERR_LIB_EVP
, EVP_R_NO_IMPORT_FUNCTION
,
1887 "key type = %s", keytype
);
1890 * We perform the export in the same libctx as the keymgmt
1891 * that we are using.
1893 OSSL_LIB_CTX
*libctx
=
1894 ossl_provider_libctx(keymgmt
->prov
);
1895 EVP_PKEY_CTX
*pctx
=
1896 EVP_PKEY_CTX_new_from_pkey(libctx
, *dest
, NULL
);
1899 ERR_raise(ERR_LIB_EVP
, ERR_R_MALLOC_FAILURE
);
1902 && evp_keymgmt_export(keymgmt
, keydata
,
1903 OSSL_KEYMGMT_SELECT_ALL
,
1904 (*dest
)->ameth
->import_from
,
1906 /* Synchronize the dirty count */
1907 (*dest
)->dirty_cnt_copy
= (*dest
)->ameth
->dirty_cnt(*dest
);
1909 EVP_PKEY_CTX_free(pctx
);
1912 EVP_PKEY_CTX_free(pctx
);
1915 ERR_raise_data(ERR_LIB_EVP
, EVP_R_KEYMGMT_EXPORT_FAILURE
,
1916 "key type = %s", keytype
);
1923 int evp_pkey_downgrade(EVP_PKEY
*pk
)
1925 EVP_PKEY tmp_copy
; /* Stack allocated! */
1928 if (!ossl_assert(pk
!= NULL
))
1932 * Throughout this whole function, we must ensure that we lock / unlock
1933 * the exact same lock. Note that we do pass it around a bit.
1935 if (!CRYPTO_THREAD_write_lock(pk
->lock
))
1938 /* If this isn't an assigned provider side key, we're done */
1939 if (!evp_pkey_is_assigned(pk
) || !evp_pkey_is_provided(pk
)) {
1945 * To be able to downgrade, we steal the contents of |pk|, then reset
1946 * it, and finally try to make it a downgraded copy. If any of that
1947 * fails, we restore the copied contents into |pk|.
1949 tmp_copy
= *pk
; /* |tmp_copy| now owns THE lock */
1951 if (evp_pkey_reset_unlocked(pk
)
1952 && evp_pkey_copy_downgraded(&pk
, &tmp_copy
)) {
1954 /* Restore the common attributes, then empty |tmp_copy| */
1955 pk
->references
= tmp_copy
.references
;
1956 pk
->attributes
= tmp_copy
.attributes
;
1957 pk
->save_parameters
= tmp_copy
.save_parameters
;
1958 pk
->ex_data
= tmp_copy
.ex_data
;
1960 /* Ensure that stuff we've copied won't be freed */
1961 tmp_copy
.lock
= NULL
;
1962 tmp_copy
.attributes
= NULL
;
1963 memset(&tmp_copy
.ex_data
, 0, sizeof(tmp_copy
.ex_data
));
1966 * Save the provider side data in the operation cache, so they'll
1967 * find it again. |pk| is new, so it's safe to assume slot zero
1969 * Note that evp_keymgmt_util_cache_keydata() increments keymgmt's
1970 * reference count, so we need to decrement it, or there will be a
1973 evp_keymgmt_util_cache_keydata(pk
, 0, tmp_copy
.keymgmt
,
1975 EVP_KEYMGMT_free(tmp_copy
.keymgmt
);
1978 * Clear keymgmt and keydata from |tmp_copy|, or they'll get
1979 * inadvertently freed.
1981 tmp_copy
.keymgmt
= NULL
;
1982 tmp_copy
.keydata
= NULL
;
1984 evp_pkey_free_it(&tmp_copy
);
1987 /* Restore the original key */
1992 if (!CRYPTO_THREAD_unlock(pk
->lock
))
1996 #endif /* FIPS_MODULE */
1998 const OSSL_PARAM
*EVP_PKEY_gettable_params(const EVP_PKEY
*pkey
)
2001 || pkey
->keymgmt
== NULL
2002 || pkey
->keydata
== NULL
)
2004 return EVP_KEYMGMT_gettable_params(pkey
->keymgmt
);
2007 int EVP_PKEY_get_bn_param(const EVP_PKEY
*pkey
, const char *key_name
,
2011 OSSL_PARAM params
[2];
2012 unsigned char buffer
[2048];
2013 unsigned char *buf
= NULL
;
2017 || pkey
->keymgmt
== NULL
2018 || pkey
->keydata
== NULL
2023 memset(buffer
, 0, sizeof(buffer
));
2024 params
[0] = OSSL_PARAM_construct_BN(key_name
, buffer
, sizeof(buffer
));
2025 params
[1] = OSSL_PARAM_construct_end();
2026 if (!evp_keymgmt_get_params(pkey
->keymgmt
, pkey
->keydata
, params
)) {
2027 if (!OSSL_PARAM_modified(params
) || params
[0].return_size
== 0)
2029 buf_sz
= params
[0].return_size
;
2031 * If it failed because the buffer was too small then allocate the
2032 * required buffer size and retry.
2034 buf
= OPENSSL_zalloc(buf_sz
);
2037 params
[0].data
= buf
;
2038 params
[0].data_size
= buf_sz
;
2040 if (!evp_keymgmt_get_params(pkey
->keymgmt
, pkey
->keydata
, params
))
2043 /* Fail if the param was not found */
2044 if (!OSSL_PARAM_modified(params
))
2046 ret
= OSSL_PARAM_get_BN(params
, bn
);
2052 int EVP_PKEY_get_octet_string_param(const EVP_PKEY
*pkey
, const char *key_name
,
2053 unsigned char *buf
, size_t max_buf_sz
,
2056 OSSL_PARAM params
[2];
2059 || pkey
->keymgmt
== NULL
2060 || pkey
->keydata
== NULL
2061 || key_name
== NULL
)
2064 params
[0] = OSSL_PARAM_construct_octet_string(key_name
, buf
, max_buf_sz
);
2065 params
[1] = OSSL_PARAM_construct_end();
2066 if (!evp_keymgmt_get_params(pkey
->keymgmt
, pkey
->keydata
, params
)
2067 || !OSSL_PARAM_modified(params
))
2070 *out_sz
= params
[0].return_size
;
2074 int EVP_PKEY_get_utf8_string_param(const EVP_PKEY
*pkey
, const char *key_name
,
2075 char *str
, size_t max_buf_sz
,
2078 OSSL_PARAM params
[2];
2081 || pkey
->keymgmt
== NULL
2082 || pkey
->keydata
== NULL
2083 || key_name
== NULL
)
2086 params
[0] = OSSL_PARAM_construct_utf8_string(key_name
, str
, max_buf_sz
);
2087 params
[1] = OSSL_PARAM_construct_end();
2088 if (!evp_keymgmt_get_params(pkey
->keymgmt
, pkey
->keydata
, params
)
2089 || !OSSL_PARAM_modified(params
))
2092 *out_sz
= params
[0].return_size
;
2096 int EVP_PKEY_get_int_param(const EVP_PKEY
*pkey
, const char *key_name
,
2099 OSSL_PARAM params
[2];
2102 || pkey
->keymgmt
== NULL
2103 || pkey
->keydata
== NULL
2104 || key_name
== NULL
)
2107 params
[0] = OSSL_PARAM_construct_int(key_name
, out
);
2108 params
[1] = OSSL_PARAM_construct_end();
2109 if (!evp_keymgmt_get_params(pkey
->keymgmt
, pkey
->keydata
, params
)
2110 || !OSSL_PARAM_modified(params
))
2115 int EVP_PKEY_get_size_t_param(const EVP_PKEY
*pkey
, const char *key_name
,
2118 OSSL_PARAM params
[2];
2121 || pkey
->keymgmt
== NULL
2122 || pkey
->keydata
== NULL
2123 || key_name
== NULL
)
2126 params
[0] = OSSL_PARAM_construct_size_t(key_name
, out
);
2127 params
[1] = OSSL_PARAM_construct_end();
2128 if (!evp_keymgmt_get_params(pkey
->keymgmt
, pkey
->keydata
, params
)
2129 || !OSSL_PARAM_modified(params
))
2134 int EVP_PKEY_set_int_param(EVP_PKEY
*pkey
, const char *key_name
, int in
)
2136 OSSL_PARAM params
[2];
2139 || pkey
->keymgmt
== NULL
2140 || pkey
->keydata
== NULL
2141 || key_name
== NULL
)
2144 params
[0] = OSSL_PARAM_construct_int(key_name
, &in
);
2145 params
[1] = OSSL_PARAM_construct_end();
2146 return evp_keymgmt_set_params(pkey
->keymgmt
, pkey
->keydata
, params
);
2149 int EVP_PKEY_set_size_t_param(EVP_PKEY
*pkey
, const char *key_name
, size_t in
)
2151 OSSL_PARAM params
[2];
2154 || pkey
->keymgmt
== NULL
2155 || pkey
->keydata
== NULL
2156 || key_name
== NULL
)
2159 params
[0] = OSSL_PARAM_construct_size_t(key_name
, &in
);
2160 params
[1] = OSSL_PARAM_construct_end();
2161 return evp_keymgmt_set_params(pkey
->keymgmt
, pkey
->keydata
, params
);
2164 int EVP_PKEY_set_bn_param(EVP_PKEY
*pkey
, const char *key_name
, BIGNUM
*bn
)
2166 OSSL_PARAM params
[2];
2167 unsigned char buffer
[2048];
2171 || pkey
->keymgmt
== NULL
2172 || pkey
->keydata
== NULL
2177 bsize
= BN_num_bytes(bn
);
2178 if (!ossl_assert(bsize
<= (int)sizeof(buffer
)))
2181 if (BN_bn2nativepad(bn
, buffer
, bsize
) < 0)
2183 params
[0] = OSSL_PARAM_construct_BN(key_name
, buffer
, bsize
);
2184 params
[1] = OSSL_PARAM_construct_end();
2185 return evp_keymgmt_set_params(pkey
->keymgmt
, pkey
->keydata
, params
);
2188 int EVP_PKEY_set_utf8_string_param(EVP_PKEY
*pkey
, const char *key_name
,
2191 OSSL_PARAM params
[2];
2194 || pkey
->keymgmt
== NULL
2195 || pkey
->keydata
== NULL
2196 || key_name
== NULL
)
2199 params
[0] = OSSL_PARAM_construct_utf8_string(key_name
, str
, 0);
2200 params
[1] = OSSL_PARAM_construct_end();
2201 return evp_keymgmt_set_params(pkey
->keymgmt
, pkey
->keydata
, params
);
2204 int EVP_PKEY_set_octet_string_param(EVP_PKEY
*pkey
, const char *key_name
,
2205 unsigned char *buf
, size_t bsize
)
2207 OSSL_PARAM params
[2];
2210 || pkey
->keymgmt
== NULL
2211 || pkey
->keydata
== NULL
2212 || key_name
== NULL
)
2215 params
[0] = OSSL_PARAM_construct_octet_string(key_name
, buf
, bsize
);
2216 params
[1] = OSSL_PARAM_construct_end();
2217 return evp_keymgmt_set_params(pkey
->keymgmt
, pkey
->keydata
, params
);
2220 const OSSL_PARAM
*EVP_PKEY_settable_params(EVP_PKEY
*pkey
)
2223 || pkey
->keymgmt
== NULL
2224 || pkey
->keydata
== NULL
)
2226 return EVP_KEYMGMT_settable_params(pkey
->keymgmt
);
2229 int EVP_PKEY_set_params(EVP_PKEY
*pkey
, OSSL_PARAM params
[])
2232 || pkey
->keymgmt
== NULL
2233 || pkey
->keydata
== NULL
)
2235 return evp_keymgmt_set_params(pkey
->keymgmt
, pkey
->keydata
, params
);
2239 int EVP_PKEY_get_ec_point_conv_form(const EVP_PKEY
*pkey
)
2247 if (pkey
->keymgmt
== NULL
2248 || pkey
->keydata
== NULL
) {
2249 #ifndef OPENSSL_NO_EC
2250 /* Might work through the legacy route */
2251 EC_KEY
*ec
= EVP_PKEY_get0_EC_KEY(pkey
);
2256 return EC_KEY_get_conv_form(ec
);
2262 if (!EVP_PKEY_get_utf8_string_param(pkey
,
2263 OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT
,
2264 name
, sizeof(name
), &name_len
))
2267 if (strcmp(name
, "uncompressed") == 0)
2268 return POINT_CONVERSION_UNCOMPRESSED
;
2270 if (strcmp(name
, "compressed") == 0)
2271 return POINT_CONVERSION_COMPRESSED
;
2273 if (strcmp(name
, "hybrid") == 0)
2274 return POINT_CONVERSION_HYBRID
;
2279 int EVP_PKEY_get_field_type(const EVP_PKEY
*pkey
)
2287 if (pkey
->keymgmt
== NULL
2288 || pkey
->keydata
== NULL
) {
2289 #ifndef OPENSSL_NO_EC
2290 /* Might work through the legacy route */
2291 EC_KEY
*ec
= EVP_PKEY_get0_EC_KEY(pkey
);
2292 const EC_GROUP
*grp
;
2296 grp
= EC_KEY_get0_group(ec
);
2300 return EC_GROUP_get_field_type(grp
);
2306 if (!EVP_PKEY_get_utf8_string_param(pkey
, OSSL_PKEY_PARAM_EC_FIELD_TYPE
,
2307 fstr
, sizeof(fstr
), &fstrlen
))
2310 if (strcmp(fstr
, SN_X9_62_prime_field
) == 0)
2311 return NID_X9_62_prime_field
;
2312 else if (strcmp(fstr
, SN_X9_62_characteristic_two_field
))
2313 return NID_X9_62_characteristic_two_field
;