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
!= NULL
&& evp_pkey_is_provided(pkey
))
1303 EVP_PKEY_set_octet_string_param(pkey
,
1304 OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY
,
1305 (unsigned char *)pub
, publen
);
1307 if (publen
> INT_MAX
)
1309 /* Historically this function was EVP_PKEY_set1_tls_encodedpoint */
1310 if (evp_pkey_asn1_ctrl(pkey
, ASN1_PKEY_CTRL_SET1_TLS_ENCPT
, publen
,
1316 size_t EVP_PKEY_get1_encoded_public_key(EVP_PKEY
*pkey
, unsigned char **ppub
)
1320 if (pkey
!= NULL
&& evp_pkey_is_provided(pkey
)) {
1321 size_t return_size
= OSSL_PARAM_UNMODIFIED
;
1324 * We know that this is going to fail, but it will give us a size
1327 EVP_PKEY_get_octet_string_param(pkey
,
1328 OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY
,
1329 NULL
, 0, &return_size
);
1330 if (return_size
== OSSL_PARAM_UNMODIFIED
)
1333 *ppub
= OPENSSL_malloc(return_size
);
1337 if (!EVP_PKEY_get_octet_string_param(pkey
,
1338 OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY
,
1339 *ppub
, return_size
, NULL
))
1345 rv
= evp_pkey_asn1_ctrl(pkey
, ASN1_PKEY_CTRL_GET1_TLS_ENCPT
, 0, ppub
);
1351 #endif /* FIPS_MODULE */
1353 /*- All methods below can also be used in FIPS_MODULE */
1356 * This reset function must be used very carefully, as it literally throws
1357 * away everything in an EVP_PKEY without freeing them, and may cause leaks
1358 * of memory, what have you.
1359 * The only reason we have this is to have the same code for EVP_PKEY_new()
1360 * and evp_pkey_downgrade().
1362 static int evp_pkey_reset_unlocked(EVP_PKEY
*pk
)
1367 if (pk
->lock
!= NULL
) {
1368 const size_t offset
= (unsigned char *)&pk
->lock
- (unsigned char *)pk
;
1370 memset(pk
, 0, offset
);
1371 memset((unsigned char *)pk
+ offset
+ sizeof(pk
->lock
),
1373 sizeof(*pk
) - offset
- sizeof(pk
->lock
));
1375 /* EVP_PKEY_new uses zalloc so no need to call memset if pk->lock is NULL */
1377 pk
->type
= EVP_PKEY_NONE
;
1378 pk
->save_type
= EVP_PKEY_NONE
;
1380 pk
->save_parameters
= 1;
1385 EVP_PKEY
*EVP_PKEY_new(void)
1387 EVP_PKEY
*ret
= OPENSSL_zalloc(sizeof(*ret
));
1390 ERR_raise(ERR_LIB_EVP
, ERR_R_MALLOC_FAILURE
);
1394 if (!evp_pkey_reset_unlocked(ret
))
1397 ret
->lock
= CRYPTO_THREAD_lock_new();
1398 if (ret
->lock
== NULL
) {
1399 EVPerr(ERR_LIB_EVP
, ERR_R_MALLOC_FAILURE
);
1404 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_EVP_PKEY
, ret
, &ret
->ex_data
)) {
1405 ERR_raise(ERR_LIB_EVP
, ERR_R_MALLOC_FAILURE
);
1412 CRYPTO_THREAD_lock_free(ret
->lock
);
1418 * Setup a public key management method.
1420 * For legacy keys, either |type| or |str| is expected to have the type
1421 * information. In this case, the setup consists of finding an ASN1 method
1422 * and potentially an ENGINE, and setting those fields in |pkey|.
1424 * For provider side keys, |keymgmt| is expected to be non-NULL. In this
1425 * case, the setup consists of setting the |keymgmt| field in |pkey|.
1427 * If pkey is NULL just return 1 or 0 if the key management method exists.
1430 static int pkey_set_type(EVP_PKEY
*pkey
, ENGINE
*e
, int type
, const char *str
,
1431 int len
, EVP_KEYMGMT
*keymgmt
)
1434 const EVP_PKEY_ASN1_METHOD
*ameth
= NULL
;
1435 ENGINE
**eptr
= (e
== NULL
) ? &e
: NULL
;
1439 * The setups can't set both legacy and provider side methods.
1442 if (!ossl_assert(type
== EVP_PKEY_NONE
|| keymgmt
== NULL
)
1443 || !ossl_assert(e
== NULL
|| keymgmt
== NULL
)) {
1444 ERR_raise(ERR_LIB_EVP
, ERR_R_INTERNAL_ERROR
);
1452 free_it
= free_it
|| pkey
->pkey
.ptr
!= NULL
;
1454 free_it
= free_it
|| pkey
->keydata
!= NULL
;
1456 evp_pkey_free_it(pkey
);
1459 * If key type matches and a method exists then this lookup has
1460 * succeeded once so just indicate success.
1462 if (pkey
->type
!= EVP_PKEY_NONE
1463 && type
== pkey
->save_type
1464 && pkey
->ameth
!= NULL
)
1466 # ifndef OPENSSL_NO_ENGINE
1467 /* If we have ENGINEs release them */
1468 ENGINE_finish(pkey
->engine
);
1469 pkey
->engine
= NULL
;
1470 ENGINE_finish(pkey
->pmeth_engine
);
1471 pkey
->pmeth_engine
= NULL
;
1477 ameth
= EVP_PKEY_asn1_find_str(eptr
, str
, len
);
1478 else if (type
!= EVP_PKEY_NONE
)
1479 ameth
= EVP_PKEY_asn1_find(eptr
, type
);
1480 # ifndef OPENSSL_NO_ENGINE
1481 if (pkey
== NULL
&& eptr
!= NULL
)
1491 check
= check
&& ameth
== NULL
;
1493 check
= check
&& keymgmt
== NULL
;
1495 ERR_raise(ERR_LIB_EVP
, EVP_R_UNSUPPORTED_ALGORITHM
);
1500 if (keymgmt
!= NULL
&& !EVP_KEYMGMT_up_ref(keymgmt
)) {
1501 ERR_raise(ERR_LIB_EVP
, ERR_R_INTERNAL_ERROR
);
1505 pkey
->keymgmt
= keymgmt
;
1507 pkey
->save_type
= type
;
1512 * If the internal "origin" key is provider side, don't save |ameth|.
1513 * The main reason is that |ameth| is one factor to detect that the
1514 * internal "origin" key is a legacy one.
1516 if (keymgmt
== NULL
)
1517 pkey
->ameth
= ameth
;
1521 * The EVP_PKEY_ASN1_METHOD |pkey_id| retains its legacy key purpose
1522 * for any key type that has a legacy implementation, regardless of
1523 * if the internal key is a legacy or a provider side one. When
1524 * there is no legacy implementation for the key, the type becomes
1525 * EVP_PKEY_KEYMGMT, which indicates that one should be cautious
1526 * with functions that expect legacy internal keys.
1529 pkey
->type
= ameth
->pkey_id
;
1531 pkey
->type
= EVP_PKEY_KEYMGMT
;
1538 static void find_ameth(const char *name
, void *data
)
1540 const char **str
= data
;
1543 * The error messages from pkey_set_type() are uninteresting here,
1548 if (pkey_set_type(NULL
, NULL
, EVP_PKEY_NONE
, name
, strlen(name
),
1552 else if (str
[1] == NULL
)
1560 int EVP_PKEY_set_type_by_keymgmt(EVP_PKEY
*pkey
, EVP_KEYMGMT
*keymgmt
)
1563 # define EVP_PKEY_TYPE_STR str[0]
1564 # define EVP_PKEY_TYPE_STRLEN (str[0] == NULL ? -1 : (int)strlen(str[0]))
1566 * Find at most two strings that have an associated EVP_PKEY_ASN1_METHOD
1567 * Ideally, only one should be found. If two (or more) are found, the
1568 * match is ambiguous. This should never happen, but...
1570 const char *str
[2] = { NULL
, NULL
};
1572 EVP_KEYMGMT_names_do_all(keymgmt
, find_ameth
, &str
);
1573 if (str
[1] != NULL
) {
1574 ERR_raise(ERR_LIB_EVP
, ERR_R_INTERNAL_ERROR
);
1578 # define EVP_PKEY_TYPE_STR NULL
1579 # define EVP_PKEY_TYPE_STRLEN -1
1581 return pkey_set_type(pkey
, NULL
, EVP_PKEY_NONE
,
1582 EVP_PKEY_TYPE_STR
, EVP_PKEY_TYPE_STRLEN
,
1585 #undef EVP_PKEY_TYPE_STR
1586 #undef EVP_PKEY_TYPE_STRLEN
1589 int EVP_PKEY_up_ref(EVP_PKEY
*pkey
)
1593 if (CRYPTO_UP_REF(&pkey
->references
, &i
, pkey
->lock
) <= 0)
1596 REF_PRINT_COUNT("EVP_PKEY", pkey
);
1597 REF_ASSERT_ISNT(i
< 2);
1598 return ((i
> 1) ? 1 : 0);
1602 void evp_pkey_free_legacy(EVP_PKEY
*x
)
1604 if (x
->ameth
!= NULL
) {
1605 if (x
->ameth
->pkey_free
!= NULL
)
1606 x
->ameth
->pkey_free(x
);
1609 # ifndef OPENSSL_NO_ENGINE
1610 ENGINE_finish(x
->engine
);
1612 ENGINE_finish(x
->pmeth_engine
);
1613 x
->pmeth_engine
= NULL
;
1616 #endif /* FIPS_MODULE */
1618 static void evp_pkey_free_it(EVP_PKEY
*x
)
1620 /* internal function; x is never NULL */
1622 evp_keymgmt_util_clear_operation_cache(x
, 1);
1624 evp_pkey_free_legacy(x
);
1627 if (x
->keymgmt
!= NULL
) {
1628 evp_keymgmt_freedata(x
->keymgmt
, x
->keydata
);
1629 EVP_KEYMGMT_free(x
->keymgmt
);
1633 x
->type
= EVP_PKEY_NONE
;
1636 void EVP_PKEY_free(EVP_PKEY
*x
)
1643 CRYPTO_DOWN_REF(&x
->references
, &i
, x
->lock
);
1644 REF_PRINT_COUNT("EVP_PKEY", x
);
1647 REF_ASSERT_ISNT(i
< 0);
1648 evp_pkey_free_it(x
);
1650 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_EVP_PKEY
, x
, &x
->ex_data
);
1652 CRYPTO_THREAD_lock_free(x
->lock
);
1654 sk_X509_ATTRIBUTE_pop_free(x
->attributes
, X509_ATTRIBUTE_free
);
1659 int EVP_PKEY_size(const EVP_PKEY
*pkey
)
1664 size
= pkey
->cache
.size
;
1666 if (pkey
->ameth
!= NULL
&& pkey
->ameth
->pkey_size
!= NULL
)
1667 size
= pkey
->ameth
->pkey_size(pkey
);
1670 return size
< 0 ? 0 : size
;
1673 void *evp_pkey_export_to_provider(EVP_PKEY
*pk
, OSSL_LIB_CTX
*libctx
,
1674 EVP_KEYMGMT
**keymgmt
,
1675 const char *propquery
)
1677 EVP_KEYMGMT
*allocated_keymgmt
= NULL
;
1678 EVP_KEYMGMT
*tmp_keymgmt
= NULL
;
1679 void *keydata
= NULL
;
1685 /* No key data => nothing to export */
1688 check
= check
&& pk
->pkey
.ptr
== NULL
;
1690 check
= check
&& pk
->keydata
== NULL
;
1695 if (pk
->pkey
.ptr
!= NULL
) {
1697 * If the legacy key doesn't have an dirty counter or export function,
1700 if (pk
->ameth
->dirty_cnt
== NULL
|| pk
->ameth
->export_to
== NULL
)
1705 if (keymgmt
!= NULL
) {
1706 tmp_keymgmt
= *keymgmt
;
1711 * If no keymgmt was given or found, get a default keymgmt. We do so by
1712 * letting EVP_PKEY_CTX_new_from_pkey() do it for us, then we steal it.
1714 if (tmp_keymgmt
== NULL
) {
1715 EVP_PKEY_CTX
*ctx
= EVP_PKEY_CTX_new_from_pkey(libctx
, pk
, propquery
);
1717 tmp_keymgmt
= ctx
->keymgmt
;
1718 ctx
->keymgmt
= NULL
;
1719 EVP_PKEY_CTX_free(ctx
);
1722 /* If there's still no keymgmt to be had, give up */
1723 if (tmp_keymgmt
== NULL
)
1727 if (pk
->pkey
.ptr
!= NULL
) {
1731 * If the legacy "origin" hasn't changed since last time, we try
1732 * to find our keymgmt in the operation cache. If it has changed,
1733 * |i| remains zero, and we will clear the cache further down.
1735 if (pk
->ameth
->dirty_cnt(pk
) == pk
->dirty_cnt_copy
) {
1736 if (!CRYPTO_THREAD_read_lock(pk
->lock
))
1738 i
= evp_keymgmt_util_find_operation_cache_index(pk
, tmp_keymgmt
);
1741 * If |tmp_keymgmt| is present in the operation cache, it means
1742 * that export doesn't need to be redone. In that case, we take
1743 * token copies of the cached pointers, to have token success
1746 if (i
< OSSL_NELEM(pk
->operation_cache
)
1747 && pk
->operation_cache
[i
].keymgmt
!= NULL
) {
1748 keydata
= pk
->operation_cache
[i
].keydata
;
1749 CRYPTO_THREAD_unlock(pk
->lock
);
1752 CRYPTO_THREAD_unlock(pk
->lock
);
1756 * TODO(3.0) Right now, we assume we have ample space. We will have
1757 * to think about a cache aging scheme, though, if |i| indexes outside
1760 if (!ossl_assert(i
< OSSL_NELEM(pk
->operation_cache
)))
1763 /* Make sure that the keymgmt key type matches the legacy NID */
1764 if (!ossl_assert(EVP_KEYMGMT_is_a(tmp_keymgmt
, OBJ_nid2sn(pk
->type
))))
1767 if ((keydata
= evp_keymgmt_newdata(tmp_keymgmt
)) == NULL
)
1770 if (!pk
->ameth
->export_to(pk
, keydata
, tmp_keymgmt
, libctx
, propquery
)) {
1771 evp_keymgmt_freedata(tmp_keymgmt
, keydata
);
1777 * If the dirty counter changed since last time, then clear the
1778 * operation cache. In that case, we know that |i| is zero. Just
1779 * in case this is a re-export, we increment then decrement the
1780 * keymgmt reference counter.
1782 if (!EVP_KEYMGMT_up_ref(tmp_keymgmt
)) { /* refcnt++ */
1783 evp_keymgmt_freedata(tmp_keymgmt
, keydata
);
1788 if (!CRYPTO_THREAD_write_lock(pk
->lock
))
1790 if (pk
->ameth
->dirty_cnt(pk
) != pk
->dirty_cnt_copy
1791 && !evp_keymgmt_util_clear_operation_cache(pk
, 0)) {
1792 CRYPTO_THREAD_unlock(pk
->lock
);
1793 evp_keymgmt_freedata(tmp_keymgmt
, keydata
);
1795 EVP_KEYMGMT_free(tmp_keymgmt
);
1798 EVP_KEYMGMT_free(tmp_keymgmt
); /* refcnt-- */
1800 /* Add the new export to the operation cache */
1801 if (!evp_keymgmt_util_cache_keydata(pk
, i
, tmp_keymgmt
, keydata
)) {
1802 CRYPTO_THREAD_unlock(pk
->lock
);
1803 evp_keymgmt_freedata(tmp_keymgmt
, keydata
);
1808 /* Synchronize the dirty count */
1809 pk
->dirty_cnt_copy
= pk
->ameth
->dirty_cnt(pk
);
1811 CRYPTO_THREAD_unlock(pk
->lock
);
1814 #endif /* FIPS_MODULE */
1816 keydata
= evp_keymgmt_util_export_to_provider(pk
, tmp_keymgmt
);
1820 * If nothing was exported, |tmp_keymgmt| might point at a freed
1821 * EVP_KEYMGMT, so we clear it to be safe. It shouldn't be useful for
1822 * the caller either way in that case.
1824 if (keydata
== NULL
)
1827 if (keymgmt
!= NULL
)
1828 *keymgmt
= tmp_keymgmt
;
1830 EVP_KEYMGMT_free(allocated_keymgmt
);
1835 int evp_pkey_copy_downgraded(EVP_PKEY
**dest
, const EVP_PKEY
*src
)
1837 if (!ossl_assert(dest
!= NULL
))
1840 if (evp_pkey_is_assigned(src
) && evp_pkey_is_provided(src
)) {
1841 EVP_KEYMGMT
*keymgmt
= src
->keymgmt
;
1842 void *keydata
= src
->keydata
;
1843 int type
= src
->type
;
1844 const char *keytype
= NULL
;
1846 keytype
= evp_first_name(EVP_KEYMGMT_provider(keymgmt
),
1850 * If the type is EVP_PKEY_NONE, then we have a problem somewhere
1851 * else in our code. If it's not one of the well known EVP_PKEY_xxx
1852 * values, it should at least be EVP_PKEY_KEYMGMT at this point.
1853 * TODO(3.0) remove this check when we're confident that the rest
1854 * of the code treats this correctly.
1856 if (!ossl_assert(type
!= EVP_PKEY_NONE
)) {
1857 ERR_raise_data(ERR_LIB_EVP
, ERR_R_INTERNAL_ERROR
,
1858 "keymgmt key type = %s but legacy type = EVP_PKEY_NONE",
1863 /* Prefer the legacy key type name for error reporting */
1864 if (type
!= EVP_PKEY_KEYMGMT
)
1865 keytype
= OBJ_nid2sn(type
);
1867 /* Make sure we have a clean slate to copy into */
1869 *dest
= EVP_PKEY_new();
1871 evp_pkey_free_it(*dest
);
1873 if (EVP_PKEY_set_type(*dest
, type
)) {
1874 /* If the key is typed but empty, we're done */
1875 if (keydata
== NULL
)
1878 if ((*dest
)->ameth
->import_from
== NULL
) {
1879 ERR_raise_data(ERR_LIB_EVP
, EVP_R_NO_IMPORT_FUNCTION
,
1880 "key type = %s", keytype
);
1883 * We perform the export in the same libctx as the keymgmt
1884 * that we are using.
1886 OSSL_LIB_CTX
*libctx
=
1887 ossl_provider_libctx(keymgmt
->prov
);
1888 EVP_PKEY_CTX
*pctx
=
1889 EVP_PKEY_CTX_new_from_pkey(libctx
, *dest
, NULL
);
1892 ERR_raise(ERR_LIB_EVP
, ERR_R_MALLOC_FAILURE
);
1895 && evp_keymgmt_export(keymgmt
, keydata
,
1896 OSSL_KEYMGMT_SELECT_ALL
,
1897 (*dest
)->ameth
->import_from
,
1899 /* Synchronize the dirty count */
1900 (*dest
)->dirty_cnt_copy
= (*dest
)->ameth
->dirty_cnt(*dest
);
1902 EVP_PKEY_CTX_free(pctx
);
1905 EVP_PKEY_CTX_free(pctx
);
1908 ERR_raise_data(ERR_LIB_EVP
, EVP_R_KEYMGMT_EXPORT_FAILURE
,
1909 "key type = %s", keytype
);
1916 int evp_pkey_downgrade(EVP_PKEY
*pk
)
1918 EVP_PKEY tmp_copy
; /* Stack allocated! */
1921 if (!ossl_assert(pk
!= NULL
))
1925 * Throughout this whole function, we must ensure that we lock / unlock
1926 * the exact same lock. Note that we do pass it around a bit.
1928 if (!CRYPTO_THREAD_write_lock(pk
->lock
))
1931 /* If this isn't an assigned provider side key, we're done */
1932 if (!evp_pkey_is_assigned(pk
) || !evp_pkey_is_provided(pk
)) {
1938 * To be able to downgrade, we steal the contents of |pk|, then reset
1939 * it, and finally try to make it a downgraded copy. If any of that
1940 * fails, we restore the copied contents into |pk|.
1942 tmp_copy
= *pk
; /* |tmp_copy| now owns THE lock */
1944 if (evp_pkey_reset_unlocked(pk
)
1945 && evp_pkey_copy_downgraded(&pk
, &tmp_copy
)) {
1947 /* Restore the common attributes, then empty |tmp_copy| */
1948 pk
->references
= tmp_copy
.references
;
1949 pk
->attributes
= tmp_copy
.attributes
;
1950 pk
->save_parameters
= tmp_copy
.save_parameters
;
1951 pk
->ex_data
= tmp_copy
.ex_data
;
1953 /* Ensure that stuff we've copied won't be freed */
1954 tmp_copy
.lock
= NULL
;
1955 tmp_copy
.attributes
= NULL
;
1956 memset(&tmp_copy
.ex_data
, 0, sizeof(tmp_copy
.ex_data
));
1959 * Save the provider side data in the operation cache, so they'll
1960 * find it again. |pk| is new, so it's safe to assume slot zero
1962 * Note that evp_keymgmt_util_cache_keydata() increments keymgmt's
1963 * reference count, so we need to decrement it, or there will be a
1966 evp_keymgmt_util_cache_keydata(pk
, 0, tmp_copy
.keymgmt
,
1968 EVP_KEYMGMT_free(tmp_copy
.keymgmt
);
1971 * Clear keymgmt and keydata from |tmp_copy|, or they'll get
1972 * inadvertently freed.
1974 tmp_copy
.keymgmt
= NULL
;
1975 tmp_copy
.keydata
= NULL
;
1977 evp_pkey_free_it(&tmp_copy
);
1980 /* Restore the original key */
1985 if (!CRYPTO_THREAD_unlock(pk
->lock
))
1989 #endif /* FIPS_MODULE */
1991 int EVP_PKEY_get_bn_param(const EVP_PKEY
*pkey
, const char *key_name
,
1995 OSSL_PARAM params
[2];
1996 unsigned char buffer
[2048];
1997 unsigned char *buf
= NULL
;
2000 if (key_name
== NULL
2003 || !evp_pkey_is_provided(pkey
))
2006 memset(buffer
, 0, sizeof(buffer
));
2007 params
[0] = OSSL_PARAM_construct_BN(key_name
, buffer
, sizeof(buffer
));
2008 params
[1] = OSSL_PARAM_construct_end();
2009 if (!EVP_PKEY_get_params(pkey
, params
)) {
2010 if (!OSSL_PARAM_modified(params
) || params
[0].return_size
== 0)
2012 buf_sz
= params
[0].return_size
;
2014 * If it failed because the buffer was too small then allocate the
2015 * required buffer size and retry.
2017 buf
= OPENSSL_zalloc(buf_sz
);
2020 params
[0].data
= buf
;
2021 params
[0].data_size
= buf_sz
;
2023 if (!EVP_PKEY_get_params(pkey
, params
))
2026 /* Fail if the param was not found */
2027 if (!OSSL_PARAM_modified(params
))
2029 ret
= OSSL_PARAM_get_BN(params
, bn
);
2035 int EVP_PKEY_get_octet_string_param(const EVP_PKEY
*pkey
, const char *key_name
,
2036 unsigned char *buf
, size_t max_buf_sz
,
2039 OSSL_PARAM params
[2];
2040 int ret1
= 0, ret2
= 0;
2042 if (key_name
== NULL
2044 || !evp_pkey_is_provided(pkey
))
2047 params
[0] = OSSL_PARAM_construct_octet_string(key_name
, buf
, max_buf_sz
);
2048 params
[1] = OSSL_PARAM_construct_end();
2049 if ((ret1
= EVP_PKEY_get_params(pkey
, params
)))
2050 ret2
= OSSL_PARAM_modified(params
);
2051 if (ret2
&& out_sz
!= NULL
)
2052 *out_sz
= params
[0].return_size
;
2053 return ret1
&& ret2
;
2056 int EVP_PKEY_get_utf8_string_param(const EVP_PKEY
*pkey
, const char *key_name
,
2057 char *str
, size_t max_buf_sz
,
2060 OSSL_PARAM params
[2];
2061 int ret1
= 0, ret2
= 0;
2063 if (key_name
== NULL
)
2066 params
[0] = OSSL_PARAM_construct_utf8_string(key_name
, str
, max_buf_sz
);
2067 params
[1] = OSSL_PARAM_construct_end();
2068 if ((ret1
= EVP_PKEY_get_params(pkey
, params
)))
2069 ret2
= OSSL_PARAM_modified(params
);
2070 if (ret2
&& out_sz
!= NULL
)
2071 *out_sz
= params
[0].return_size
;
2072 return ret1
&& ret2
;
2075 int EVP_PKEY_get_int_param(const EVP_PKEY
*pkey
, const char *key_name
,
2078 OSSL_PARAM params
[2];
2080 if (key_name
== NULL
)
2083 params
[0] = OSSL_PARAM_construct_int(key_name
, out
);
2084 params
[1] = OSSL_PARAM_construct_end();
2085 return EVP_PKEY_get_params(pkey
, params
)
2086 && OSSL_PARAM_modified(params
);
2089 int EVP_PKEY_get_size_t_param(const EVP_PKEY
*pkey
, const char *key_name
,
2092 OSSL_PARAM params
[2];
2094 if (key_name
== NULL
)
2097 params
[0] = OSSL_PARAM_construct_size_t(key_name
, out
);
2098 params
[1] = OSSL_PARAM_construct_end();
2099 return EVP_PKEY_get_params(pkey
, params
)
2100 && OSSL_PARAM_modified(params
);
2103 int EVP_PKEY_set_int_param(EVP_PKEY
*pkey
, const char *key_name
, int in
)
2105 OSSL_PARAM params
[2];
2107 if (key_name
== NULL
)
2110 params
[0] = OSSL_PARAM_construct_int(key_name
, &in
);
2111 params
[1] = OSSL_PARAM_construct_end();
2112 return EVP_PKEY_set_params(pkey
, params
);
2115 int EVP_PKEY_set_size_t_param(EVP_PKEY
*pkey
, const char *key_name
, size_t in
)
2117 OSSL_PARAM params
[2];
2119 if (key_name
== NULL
)
2122 params
[0] = OSSL_PARAM_construct_size_t(key_name
, &in
);
2123 params
[1] = OSSL_PARAM_construct_end();
2124 return EVP_PKEY_set_params(pkey
, params
);
2127 int EVP_PKEY_set_bn_param(EVP_PKEY
*pkey
, const char *key_name
,
2130 OSSL_PARAM params
[2];
2131 unsigned char buffer
[2048];
2134 if (key_name
== NULL
2137 || !evp_pkey_is_provided(pkey
))
2140 bsize
= BN_num_bytes(bn
);
2141 if (!ossl_assert(bsize
<= (int)sizeof(buffer
)))
2144 if (BN_bn2nativepad(bn
, buffer
, bsize
) < 0)
2146 params
[0] = OSSL_PARAM_construct_BN(key_name
, buffer
, bsize
);
2147 params
[1] = OSSL_PARAM_construct_end();
2148 return EVP_PKEY_set_params(pkey
, params
);
2151 int EVP_PKEY_set_utf8_string_param(EVP_PKEY
*pkey
, const char *key_name
,
2154 OSSL_PARAM params
[2];
2156 if (key_name
== NULL
)
2159 params
[0] = OSSL_PARAM_construct_utf8_string(key_name
, (char *)str
, 0);
2160 params
[1] = OSSL_PARAM_construct_end();
2161 return EVP_PKEY_set_params(pkey
, params
);
2164 int EVP_PKEY_set_octet_string_param(EVP_PKEY
*pkey
, const char *key_name
,
2165 const unsigned char *buf
, size_t bsize
)
2167 OSSL_PARAM params
[2];
2169 if (key_name
== NULL
)
2172 params
[0] = OSSL_PARAM_construct_octet_string(key_name
,
2173 (unsigned char *)buf
, bsize
);
2174 params
[1] = OSSL_PARAM_construct_end();
2175 return EVP_PKEY_set_params(pkey
, params
);
2178 const OSSL_PARAM
*EVP_PKEY_settable_params(const EVP_PKEY
*pkey
)
2180 return (pkey
!= NULL
&& evp_pkey_is_provided(pkey
))
2181 ? EVP_KEYMGMT_settable_params(pkey
->keymgmt
)
2185 int EVP_PKEY_set_params(EVP_PKEY
*pkey
, OSSL_PARAM params
[])
2191 return evp_pkey_is_provided(pkey
)
2192 && evp_keymgmt_set_params(pkey
->keymgmt
, pkey
->keydata
, params
);
2195 const OSSL_PARAM
*EVP_PKEY_gettable_params(const EVP_PKEY
*pkey
)
2197 return (pkey
!= NULL
&& evp_pkey_is_provided(pkey
))
2198 ? EVP_KEYMGMT_gettable_params(pkey
->keymgmt
)
2202 int EVP_PKEY_get_params(const EVP_PKEY
*pkey
, OSSL_PARAM params
[])
2205 && evp_pkey_is_provided(pkey
)
2206 && evp_keymgmt_get_params(pkey
->keymgmt
, pkey
->keydata
, params
);
2210 int EVP_PKEY_get_ec_point_conv_form(const EVP_PKEY
*pkey
)
2218 if (pkey
->keymgmt
== NULL
2219 || pkey
->keydata
== NULL
) {
2220 #ifndef OPENSSL_NO_EC
2221 /* Might work through the legacy route */
2222 EC_KEY
*ec
= EVP_PKEY_get0_EC_KEY(pkey
);
2227 return EC_KEY_get_conv_form(ec
);
2233 if (!EVP_PKEY_get_utf8_string_param(pkey
,
2234 OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT
,
2235 name
, sizeof(name
), &name_len
))
2238 if (strcmp(name
, "uncompressed") == 0)
2239 return POINT_CONVERSION_UNCOMPRESSED
;
2241 if (strcmp(name
, "compressed") == 0)
2242 return POINT_CONVERSION_COMPRESSED
;
2244 if (strcmp(name
, "hybrid") == 0)
2245 return POINT_CONVERSION_HYBRID
;
2250 int EVP_PKEY_get_field_type(const EVP_PKEY
*pkey
)
2258 if (pkey
->keymgmt
== NULL
2259 || pkey
->keydata
== NULL
) {
2260 #ifndef OPENSSL_NO_EC
2261 /* Might work through the legacy route */
2262 EC_KEY
*ec
= EVP_PKEY_get0_EC_KEY(pkey
);
2263 const EC_GROUP
*grp
;
2267 grp
= EC_KEY_get0_group(ec
);
2271 return EC_GROUP_get_field_type(grp
);
2277 if (!EVP_PKEY_get_utf8_string_param(pkey
, OSSL_PKEY_PARAM_EC_FIELD_TYPE
,
2278 fstr
, sizeof(fstr
), &fstrlen
))
2281 if (strcmp(fstr
, SN_X9_62_prime_field
) == 0)
2282 return NID_X9_62_prime_field
;
2283 else if (strcmp(fstr
, SN_X9_62_characteristic_two_field
))
2284 return NID_X9_62_characteristic_two_field
;