2 * Copyright 2020-2023 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 * ECDH/ECDSA low level APIs are deprecated for public use, but still ok for
14 #include "internal/deprecated.h"
17 #include <openssl/core_dispatch.h>
18 #include <openssl/core_names.h>
19 #include <openssl/bn.h>
20 #include <openssl/err.h>
21 #include <openssl/objects.h>
22 #include <openssl/proverr.h>
23 #include "crypto/bn.h"
24 #include "crypto/ec.h"
25 #include "prov/implementations.h"
26 #include "prov/providercommon.h"
27 #include "prov/provider_ctx.h"
28 #include "internal/param_build_set.h"
31 # ifndef OPENSSL_NO_SM2
32 # include "crypto/sm2.h"
36 static OSSL_FUNC_keymgmt_new_fn ec_newdata;
37 static OSSL_FUNC_keymgmt_gen_init_fn ec_gen_init;
38 static OSSL_FUNC_keymgmt_gen_set_template_fn ec_gen_set_template;
39 static OSSL_FUNC_keymgmt_gen_set_params_fn ec_gen_set_params;
40 static OSSL_FUNC_keymgmt_gen_settable_params_fn ec_gen_settable_params;
41 static OSSL_FUNC_keymgmt_gen_fn ec_gen;
42 static OSSL_FUNC_keymgmt_gen_cleanup_fn ec_gen_cleanup;
43 static OSSL_FUNC_keymgmt_load_fn ec_load;
44 static OSSL_FUNC_keymgmt_free_fn ec_freedata;
45 static OSSL_FUNC_keymgmt_get_params_fn ec_get_params;
46 static OSSL_FUNC_keymgmt_gettable_params_fn ec_gettable_params;
47 static OSSL_FUNC_keymgmt_set_params_fn ec_set_params;
48 static OSSL_FUNC_keymgmt_settable_params_fn ec_settable_params;
49 static OSSL_FUNC_keymgmt_has_fn ec_has;
50 static OSSL_FUNC_keymgmt_match_fn ec_match;
51 static OSSL_FUNC_keymgmt_validate_fn ec_validate;
52 static OSSL_FUNC_keymgmt_import_fn ec_import;
53 static OSSL_FUNC_keymgmt_import_types_fn ec_import_types;
54 static OSSL_FUNC_keymgmt_export_fn ec_export;
55 static OSSL_FUNC_keymgmt_export_types_fn ec_export_types;
56 static OSSL_FUNC_keymgmt_query_operation_name_fn ec_query_operation_name;
57 static OSSL_FUNC_keymgmt_dup_fn ec_dup;
59 # ifndef OPENSSL_NO_SM2
60 static OSSL_FUNC_keymgmt_new_fn sm2_newdata;
61 static OSSL_FUNC_keymgmt_gen_init_fn sm2_gen_init;
62 static OSSL_FUNC_keymgmt_gen_fn sm2_gen;
63 static OSSL_FUNC_keymgmt_get_params_fn sm2_get_params;
64 static OSSL_FUNC_keymgmt_gettable_params_fn sm2_gettable_params;
65 static OSSL_FUNC_keymgmt_settable_params_fn sm2_settable_params;
66 static OSSL_FUNC_keymgmt_import_fn sm2_import;
67 static OSSL_FUNC_keymgmt_query_operation_name_fn sm2_query_operation_name;
68 static OSSL_FUNC_keymgmt_validate_fn sm2_validate;
72 #define EC_DEFAULT_MD "SHA256"
73 #define EC_POSSIBLE_SELECTIONS \
74 (OSSL_KEYMGMT_SELECT_KEYPAIR | OSSL_KEYMGMT_SELECT_ALL_PARAMETERS)
75 #define SM2_DEFAULT_MD "SM3"
78 const char *ec_query_operation_name(int operation_id)
80 switch (operation_id) {
83 case OSSL_OP_SIGNATURE:
90 # ifndef OPENSSL_NO_SM2
92 const char *sm2_query_operation_name(int operation_id)
94 switch (operation_id) {
95 case OSSL_OP_SIGNATURE:
104 * Callers of key_to_params MUST make sure that domparams_to_params is also
107 * This function only exports the bare keypair, domain parameters and other
108 * parameters are exported separately.
111 int key_to_params(const EC_KEY *eckey, OSSL_PARAM_BLD *tmpl,
112 OSSL_PARAM params[], int include_private,
113 unsigned char **pub_key)
115 BIGNUM *x = NULL, *y = NULL;
116 const BIGNUM *priv_key = NULL;
117 const EC_POINT *pub_point = NULL;
118 const EC_GROUP *ecg = NULL;
119 size_t pub_key_len = 0;
121 BN_CTX *bnctx = NULL;
124 || (ecg = EC_KEY_get0_group(eckey)) == NULL)
127 priv_key = EC_KEY_get0_private_key(eckey);
128 pub_point = EC_KEY_get0_public_key(eckey);
130 if (pub_point != NULL) {
131 OSSL_PARAM *p = NULL, *px = NULL, *py = NULL;
133 * EC_POINT_point2buf() can generate random numbers in some
134 * implementations so we need to ensure we use the correct libctx.
136 bnctx = BN_CTX_new_ex(ossl_ec_key_get_libctx(eckey));
141 /* If we are doing a get then check first before decoding the point */
143 p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_PUB_KEY);
144 px = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_EC_PUB_X);
145 py = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_EC_PUB_Y);
148 if (p != NULL || tmpl != NULL) {
149 /* convert pub_point to a octet string according to the SECG standard */
150 point_conversion_form_t format = EC_KEY_get_conv_form(eckey);
152 if ((pub_key_len = EC_POINT_point2buf(ecg, pub_point,
154 pub_key, bnctx)) == 0
155 || !ossl_param_build_set_octet_string(tmpl, p,
156 OSSL_PKEY_PARAM_PUB_KEY,
157 *pub_key, pub_key_len))
160 if (px != NULL || py != NULL) {
162 x = BN_CTX_get(bnctx);
167 y = BN_CTX_get(bnctx);
172 if (!EC_POINT_get_affine_coordinates(ecg, pub_point, x, y, bnctx))
175 && !ossl_param_build_set_bn(tmpl, px,
176 OSSL_PKEY_PARAM_EC_PUB_X, x))
179 && !ossl_param_build_set_bn(tmpl, py,
180 OSSL_PKEY_PARAM_EC_PUB_Y, y))
185 if (priv_key != NULL && include_private) {
190 * Key import/export should never leak the bit length of the secret
193 * For this reason, on export we use padded BIGNUMs with fixed length.
195 * When importing we also should make sure that, even if short lived,
196 * the newly created BIGNUM is marked with the BN_FLG_CONSTTIME flag as
197 * soon as possible, so that any processing of this BIGNUM might opt for
198 * constant time implementations in the backend.
200 * Setting the BN_FLG_CONSTTIME flag alone is never enough, we also have
201 * to preallocate the BIGNUM internal buffer to a fixed public size big
202 * enough that operations performed during the processing never trigger
203 * a realloc which would leak the size of the scalar through memory
209 * The order of the large prime subgroup of the curve is our choice for
210 * a fixed public size, as that is generally the upper bound for
211 * generating a private key in EC cryptosystems and should fit all valid
214 * For padding on export we just use the bit length of the order
215 * converted to bytes (rounding up).
217 * For preallocating the BIGNUM storage we look at the number of "words"
218 * required for the internal representation of the order, and we
219 * preallocate 2 extra "words" in case any of the subsequent processing
220 * might temporarily overflow the order length.
222 ecbits = EC_GROUP_order_bits(ecg);
225 sz = (ecbits + 7) / 8;
227 if (!ossl_param_build_set_bn_pad(tmpl, params,
228 OSSL_PKEY_PARAM_PRIV_KEY,
239 int otherparams_to_params(const EC_KEY *ec, OSSL_PARAM_BLD *tmpl,
242 int ecdh_cofactor_mode = 0, group_check = 0;
243 const char *name = NULL;
244 point_conversion_form_t format;
249 format = EC_KEY_get_conv_form(ec);
250 name = ossl_ec_pt_format_id2name((int)format);
252 && !ossl_param_build_set_utf8_string(tmpl, params,
253 OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT,
257 group_check = EC_KEY_get_flags(ec) & EC_FLAG_CHECK_NAMED_GROUP_MASK;
258 name = ossl_ec_check_group_type_id2name(group_check);
260 && !ossl_param_build_set_utf8_string(tmpl, params,
261 OSSL_PKEY_PARAM_EC_GROUP_CHECK_TYPE,
265 if ((EC_KEY_get_enc_flags(ec) & EC_PKEY_NO_PUBKEY) != 0
266 && !ossl_param_build_set_int(tmpl, params,
267 OSSL_PKEY_PARAM_EC_INCLUDE_PUBLIC, 0))
271 (EC_KEY_get_flags(ec) & EC_FLAG_COFACTOR_ECDH) ? 1 : 0;
272 return ossl_param_build_set_int(tmpl, params,
273 OSSL_PKEY_PARAM_USE_COFACTOR_ECDH,
278 void *ec_newdata(void *provctx)
280 if (!ossl_prov_is_running())
282 return EC_KEY_new_ex(PROV_LIBCTX_OF(provctx), NULL);
286 # ifndef OPENSSL_NO_SM2
288 void *sm2_newdata(void *provctx)
290 if (!ossl_prov_is_running())
292 return EC_KEY_new_by_curve_name_ex(PROV_LIBCTX_OF(provctx), NULL, NID_sm2);
298 void ec_freedata(void *keydata)
300 EC_KEY_free(keydata);
304 int ec_has(const void *keydata, int selection)
306 const EC_KEY *ec = keydata;
309 if (!ossl_prov_is_running() || ec == NULL)
311 if ((selection & EC_POSSIBLE_SELECTIONS) == 0)
312 return 1; /* the selection is not missing */
314 if ((selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0)
315 ok = ok && (EC_KEY_get0_public_key(ec) != NULL);
316 if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0)
317 ok = ok && (EC_KEY_get0_private_key(ec) != NULL);
318 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0)
319 ok = ok && (EC_KEY_get0_group(ec) != NULL);
321 * We consider OSSL_KEYMGMT_SELECT_OTHER_PARAMETERS to always be
322 * available, so no extra check is needed other than the previous one
323 * against EC_POSSIBLE_SELECTIONS.
328 static int ec_match(const void *keydata1, const void *keydata2, int selection)
330 const EC_KEY *ec1 = keydata1;
331 const EC_KEY *ec2 = keydata2;
332 const EC_GROUP *group_a = EC_KEY_get0_group(ec1);
333 const EC_GROUP *group_b = EC_KEY_get0_group(ec2);
337 if (!ossl_prov_is_running())
340 ctx = BN_CTX_new_ex(ossl_ec_key_get_libctx(ec1));
344 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0)
345 ok = ok && group_a != NULL && group_b != NULL
346 && EC_GROUP_cmp(group_a, group_b, ctx) == 0;
347 if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0) {
350 if ((selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0) {
351 const EC_POINT *pa = EC_KEY_get0_public_key(ec1);
352 const EC_POINT *pb = EC_KEY_get0_public_key(ec2);
354 if (pa != NULL && pb != NULL) {
355 ok = ok && EC_POINT_cmp(group_b, pa, pb, ctx) == 0;
360 && (selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0) {
361 const BIGNUM *pa = EC_KEY_get0_private_key(ec1);
362 const BIGNUM *pb = EC_KEY_get0_private_key(ec2);
364 if (pa != NULL && pb != NULL) {
365 ok = ok && BN_cmp(pa, pb) == 0;
369 ok = ok && key_checked;
375 static int common_check_sm2(const EC_KEY *ec, int sm2_wanted)
377 const EC_GROUP *ecg = NULL;
380 * sm2_wanted: import the keys or domparams only on SM2 Curve
381 * !sm2_wanted: import the keys or domparams only not on SM2 Curve
383 if ((ecg = EC_KEY_get0_group(ec)) == NULL
384 || (sm2_wanted ^ (EC_GROUP_get_curve_name(ecg) == NID_sm2)))
390 int common_import(void *keydata, int selection, const OSSL_PARAM params[],
393 EC_KEY *ec = keydata;
396 if (!ossl_prov_is_running() || ec == NULL)
400 * In this implementation, we can export/import only keydata in the
401 * following combinations:
402 * - domain parameters (+optional other params)
403 * - public key with associated domain parameters (+optional other params)
404 * - private key with associated domain parameters and optional public key
405 * (+optional other params)
408 * - domain parameters must always be requested
409 * - private key must be requested alongside public key
410 * - other parameters are always optional
412 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) == 0)
415 ok = ok && ossl_ec_group_fromdata(ec, params);
417 if (!common_check_sm2(ec, sm2_wanted))
420 if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0) {
421 int include_private =
422 selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY ? 1 : 0;
424 ok = ok && ossl_ec_key_fromdata(ec, params, include_private);
426 if ((selection & OSSL_KEYMGMT_SELECT_OTHER_PARAMETERS) != 0)
427 ok = ok && ossl_ec_key_otherparams_fromdata(ec, params);
433 int ec_import(void *keydata, int selection, const OSSL_PARAM params[])
435 return common_import(keydata, selection, params, 0);
439 # ifndef OPENSSL_NO_SM2
441 int sm2_import(void *keydata, int selection, const OSSL_PARAM params[])
443 return common_import(keydata, selection, params, 1);
449 int ec_export(void *keydata, int selection, OSSL_CALLBACK *param_cb,
452 EC_KEY *ec = keydata;
453 OSSL_PARAM_BLD *tmpl = NULL;
454 OSSL_PARAM *params = NULL;
455 unsigned char *pub_key = NULL, *genbuf = NULL;
456 BN_CTX *bnctx = NULL;
459 if (!ossl_prov_is_running() || ec == NULL)
463 * In this implementation, we can export/import only keydata in the
464 * following combinations:
465 * - domain parameters (+optional other params)
466 * - public key with associated domain parameters (+optional other params)
467 * - private key with associated public key and domain parameters
468 * (+optional other params)
471 * - domain parameters must always be requested
472 * - private key must be requested alongside public key
473 * - other parameters are always optional
475 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) == 0)
477 if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0
478 && (selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) == 0)
481 tmpl = OSSL_PARAM_BLD_new();
485 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0) {
486 bnctx = BN_CTX_new_ex(ossl_ec_key_get_libctx(ec));
492 ok = ok && ossl_ec_group_todata(EC_KEY_get0_group(ec), tmpl, NULL,
493 ossl_ec_key_get_libctx(ec),
494 ossl_ec_key_get0_propq(ec),
498 if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0) {
499 int include_private =
500 selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY ? 1 : 0;
502 ok = ok && key_to_params(ec, tmpl, NULL, include_private, &pub_key);
504 if ((selection & OSSL_KEYMGMT_SELECT_OTHER_PARAMETERS) != 0)
505 ok = ok && otherparams_to_params(ec, tmpl, NULL);
507 if (!ok || (params = OSSL_PARAM_BLD_to_param(tmpl)) == NULL) {
512 ok = param_cb(params, cbarg);
513 OSSL_PARAM_free(params);
515 OSSL_PARAM_BLD_free(tmpl);
516 OPENSSL_free(pub_key);
517 OPENSSL_free(genbuf);
523 /* IMEXPORT = IMPORT + EXPORT */
525 # define EC_IMEXPORTABLE_DOM_PARAMETERS \
526 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_GROUP_NAME, NULL, 0), \
527 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_ENCODING, NULL, 0), \
528 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT, NULL, 0),\
529 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_FIELD_TYPE, NULL, 0), \
530 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_P, NULL, 0), \
531 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_A, NULL, 0), \
532 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_B, NULL, 0), \
533 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_GENERATOR, NULL, 0), \
534 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_ORDER, NULL, 0), \
535 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_COFACTOR, NULL, 0), \
536 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_SEED, NULL, 0), \
537 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_DECODED_FROM_EXPLICIT_PARAMS, NULL)
539 # define EC_IMEXPORTABLE_PUBLIC_KEY \
540 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_PUB_KEY, NULL, 0)
541 # define EC_IMEXPORTABLE_PRIVATE_KEY \
542 OSSL_PARAM_BN(OSSL_PKEY_PARAM_PRIV_KEY, NULL, 0)
543 # define EC_IMEXPORTABLE_OTHER_PARAMETERS \
544 OSSL_PARAM_int(OSSL_PKEY_PARAM_USE_COFACTOR_ECDH, NULL), \
545 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_INCLUDE_PUBLIC, NULL)
548 * Include all the possible combinations of OSSL_PARAM arrays for
549 * ec_imexport_types().
551 * They are in a separate file as it is ~100 lines of unreadable and
552 * uninteresting machine generated stuff.
554 #include "ec_kmgmt_imexport.inc"
557 const OSSL_PARAM *ec_imexport_types(int selection)
561 if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0)
563 if ((selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0)
565 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0)
567 if ((selection & OSSL_KEYMGMT_SELECT_OTHER_PARAMETERS) != 0)
569 return ec_types[type_select];
573 const OSSL_PARAM *ec_import_types(int selection)
575 return ec_imexport_types(selection);
579 const OSSL_PARAM *ec_export_types(int selection)
581 return ec_imexport_types(selection);
584 static int ec_get_ecm_params(const EC_GROUP *group, OSSL_PARAM params[])
586 #ifdef OPENSSL_NO_EC2M
590 unsigned int k1 = 0, k2 = 0, k3 = 0;
592 const char *basis_name = NULL;
593 int fid = EC_GROUP_get_field_type(group);
595 if (fid != NID_X9_62_characteristic_two_field)
598 basis_nid = EC_GROUP_get_basis_type(group);
599 if (basis_nid == NID_X9_62_tpBasis)
600 basis_name = SN_X9_62_tpBasis;
601 else if (basis_nid == NID_X9_62_ppBasis)
602 basis_name = SN_X9_62_ppBasis;
606 m = EC_GROUP_get_degree(group);
607 if (!ossl_param_build_set_int(NULL, params, OSSL_PKEY_PARAM_EC_CHAR2_M, m)
608 || !ossl_param_build_set_utf8_string(NULL, params,
609 OSSL_PKEY_PARAM_EC_CHAR2_TYPE,
613 if (basis_nid == NID_X9_62_tpBasis) {
614 if (!EC_GROUP_get_trinomial_basis(group, &k1)
615 || !ossl_param_build_set_int(NULL, params,
616 OSSL_PKEY_PARAM_EC_CHAR2_TP_BASIS,
620 if (!EC_GROUP_get_pentanomial_basis(group, &k1, &k2, &k3)
621 || !ossl_param_build_set_int(NULL, params,
622 OSSL_PKEY_PARAM_EC_CHAR2_PP_K1, (int)k1)
623 || !ossl_param_build_set_int(NULL, params,
624 OSSL_PKEY_PARAM_EC_CHAR2_PP_K2, (int)k2)
625 || !ossl_param_build_set_int(NULL, params,
626 OSSL_PKEY_PARAM_EC_CHAR2_PP_K3, (int)k3))
632 #endif /* OPENSSL_NO_EC2M */
636 int common_get_params(void *key, OSSL_PARAM params[], int sm2)
640 const EC_GROUP *ecg = NULL;
642 unsigned char *pub_key = NULL, *genbuf = NULL;
643 OSSL_LIB_CTX *libctx;
645 BN_CTX *bnctx = NULL;
647 ecg = EC_KEY_get0_group(eck);
649 ERR_raise(ERR_LIB_PROV, PROV_R_NO_PARAMETERS_SET);
653 libctx = ossl_ec_key_get_libctx(eck);
654 propq = ossl_ec_key_get0_propq(eck);
656 bnctx = BN_CTX_new_ex(libctx);
661 if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_MAX_SIZE)) != NULL
662 && !OSSL_PARAM_set_int(p, ECDSA_size(eck)))
664 if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_BITS)) != NULL
665 && !OSSL_PARAM_set_int(p, EC_GROUP_order_bits(ecg)))
667 if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_SECURITY_BITS)) != NULL) {
668 int ecbits, sec_bits;
670 ecbits = EC_GROUP_order_bits(ecg);
673 * The following estimates are based on the values published
674 * in Table 2 of "NIST Special Publication 800-57 Part 1 Revision 4"
675 * at http://dx.doi.org/10.6028/NIST.SP.800-57pt1r4 .
677 * Note that the above reference explicitly categorizes algorithms in a
678 * discrete set of values {80, 112, 128, 192, 256}, and that it is
679 * relevant only for NIST approved Elliptic Curves, while OpenSSL
680 * applies the same logic also to other curves.
682 * Classifications produced by other standardazing bodies might differ,
683 * so the results provided for "bits of security" by this provider are
684 * to be considered merely indicative, and it is the users'
685 * responsibility to compare these values against the normative
686 * references that may be relevant for their intent and purposes.
690 else if (ecbits >= 384)
692 else if (ecbits >= 256)
694 else if (ecbits >= 224)
696 else if (ecbits >= 160)
699 sec_bits = ecbits / 2;
701 if (!OSSL_PARAM_set_int(p, sec_bits))
705 if ((p = OSSL_PARAM_locate(params,
706 OSSL_PKEY_PARAM_EC_DECODED_FROM_EXPLICIT_PARAMS))
708 int explicitparams = EC_KEY_decoded_from_explicit_params(eck);
710 if (explicitparams < 0
711 || !OSSL_PARAM_set_int(p, explicitparams))
716 if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_DEFAULT_DIGEST)) != NULL
717 && !OSSL_PARAM_set_utf8_string(p, EC_DEFAULT_MD))
720 if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_DEFAULT_DIGEST)) != NULL
721 && !OSSL_PARAM_set_utf8_string(p, SM2_DEFAULT_MD))
725 /* SM2 doesn't support this PARAM */
727 p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_USE_COFACTOR_ECDH);
729 int ecdh_cofactor_mode = 0;
732 (EC_KEY_get_flags(eck) & EC_FLAG_COFACTOR_ECDH) ? 1 : 0;
734 if (!OSSL_PARAM_set_int(p, ecdh_cofactor_mode))
738 if ((p = OSSL_PARAM_locate(params,
739 OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY)) != NULL) {
740 const EC_POINT *ecp = EC_KEY_get0_public_key(key);
743 ERR_raise(ERR_LIB_PROV, PROV_R_NOT_A_PUBLIC_KEY);
746 p->return_size = EC_POINT_point2oct(ecg, ecp,
747 POINT_CONVERSION_UNCOMPRESSED,
748 p->data, p->data_size, bnctx);
749 if (p->return_size == 0)
753 ret = ec_get_ecm_params(ecg, params)
754 && ossl_ec_group_todata(ecg, NULL, params, libctx, propq, bnctx,
756 && key_to_params(eck, NULL, params, 1, &pub_key)
757 && otherparams_to_params(eck, NULL, params);
759 OPENSSL_free(genbuf);
760 OPENSSL_free(pub_key);
767 int ec_get_params(void *key, OSSL_PARAM params[])
769 return common_get_params(key, params, 0);
772 #ifndef OPENSSL_NO_EC2M
773 # define EC2M_GETTABLE_DOM_PARAMS \
774 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_CHAR2_M, NULL), \
775 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_CHAR2_TYPE, NULL, 0), \
776 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_CHAR2_TP_BASIS, NULL), \
777 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_CHAR2_PP_K1, NULL), \
778 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_CHAR2_PP_K2, NULL), \
779 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_CHAR2_PP_K3, NULL),
781 # define EC2M_GETTABLE_DOM_PARAMS
784 static const OSSL_PARAM ec_known_gettable_params[] = {
785 OSSL_PARAM_int(OSSL_PKEY_PARAM_BITS, NULL),
786 OSSL_PARAM_int(OSSL_PKEY_PARAM_SECURITY_BITS, NULL),
787 OSSL_PARAM_int(OSSL_PKEY_PARAM_MAX_SIZE, NULL),
788 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_DEFAULT_DIGEST, NULL, 0),
789 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY, NULL, 0),
790 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_DECODED_FROM_EXPLICIT_PARAMS, NULL),
791 EC_IMEXPORTABLE_DOM_PARAMETERS,
792 EC2M_GETTABLE_DOM_PARAMS
793 EC_IMEXPORTABLE_PUBLIC_KEY,
794 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_PUB_X, NULL, 0),
795 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_PUB_Y, NULL, 0),
796 EC_IMEXPORTABLE_PRIVATE_KEY,
797 EC_IMEXPORTABLE_OTHER_PARAMETERS,
802 const OSSL_PARAM *ec_gettable_params(void *provctx)
804 return ec_known_gettable_params;
807 static const OSSL_PARAM ec_known_settable_params[] = {
808 OSSL_PARAM_int(OSSL_PKEY_PARAM_USE_COFACTOR_ECDH, NULL),
809 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY, NULL, 0),
810 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_ENCODING, NULL, 0),
811 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT, NULL, 0),
812 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_SEED, NULL, 0),
813 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_INCLUDE_PUBLIC, NULL),
814 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_GROUP_CHECK_TYPE, NULL, 0),
819 const OSSL_PARAM *ec_settable_params(void *provctx)
821 return ec_known_settable_params;
825 int ec_set_params(void *key, const OSSL_PARAM params[])
836 if (!ossl_ec_group_set_params((EC_GROUP *)EC_KEY_get0_group(key), params))
839 p = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY);
841 BN_CTX *ctx = BN_CTX_new_ex(ossl_ec_key_get_libctx(key));
845 || p->data_type != OSSL_PARAM_OCTET_STRING
846 || !EC_KEY_oct2key(key, p->data, p->data_size, ctx))
853 return ossl_ec_key_otherparams_fromdata(eck, params);
857 # ifndef OPENSSL_NO_SM2
859 int sm2_get_params(void *key, OSSL_PARAM params[])
861 return common_get_params(key, params, 1);
864 static const OSSL_PARAM sm2_known_gettable_params[] = {
865 OSSL_PARAM_int(OSSL_PKEY_PARAM_BITS, NULL),
866 OSSL_PARAM_int(OSSL_PKEY_PARAM_SECURITY_BITS, NULL),
867 OSSL_PARAM_int(OSSL_PKEY_PARAM_MAX_SIZE, NULL),
868 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_DEFAULT_DIGEST, NULL, 0),
869 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY, NULL, 0),
870 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_DECODED_FROM_EXPLICIT_PARAMS, NULL),
871 EC_IMEXPORTABLE_DOM_PARAMETERS,
872 EC_IMEXPORTABLE_PUBLIC_KEY,
873 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_PUB_X, NULL, 0),
874 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_PUB_Y, NULL, 0),
875 EC_IMEXPORTABLE_PRIVATE_KEY,
880 const OSSL_PARAM *sm2_gettable_params(ossl_unused void *provctx)
882 return sm2_known_gettable_params;
885 static const OSSL_PARAM sm2_known_settable_params[] = {
886 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY, NULL, 0),
891 const OSSL_PARAM *sm2_settable_params(ossl_unused void *provctx)
893 return sm2_known_settable_params;
897 int sm2_validate(const void *keydata, int selection, int checktype)
899 const EC_KEY *eck = keydata;
903 if (!ossl_prov_is_running())
906 if ((selection & EC_POSSIBLE_SELECTIONS) == 0)
907 return 1; /* nothing to validate */
909 ctx = BN_CTX_new_ex(ossl_ec_key_get_libctx(eck));
913 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0)
914 ok = ok && EC_GROUP_check(EC_KEY_get0_group(eck), ctx);
916 if ((selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0) {
917 if (checktype == OSSL_KEYMGMT_VALIDATE_QUICK_CHECK)
918 ok = ok && ossl_ec_key_public_check_quick(eck, ctx);
920 ok = ok && ossl_ec_key_public_check(eck, ctx);
923 if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0)
924 ok = ok && ossl_sm2_key_private_check(eck);
926 if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) == OSSL_KEYMGMT_SELECT_KEYPAIR)
927 ok = ok && ossl_ec_key_pairwise_check(eck, ctx);
936 int ec_validate(const void *keydata, int selection, int checktype)
938 const EC_KEY *eck = keydata;
942 if (!ossl_prov_is_running())
945 if ((selection & EC_POSSIBLE_SELECTIONS) == 0)
946 return 1; /* nothing to validate */
948 ctx = BN_CTX_new_ex(ossl_ec_key_get_libctx(eck));
952 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0) {
953 int flags = EC_KEY_get_flags(eck);
955 if ((flags & EC_FLAG_CHECK_NAMED_GROUP) != 0)
956 ok = ok && EC_GROUP_check_named_curve(EC_KEY_get0_group(eck),
957 (flags & EC_FLAG_CHECK_NAMED_GROUP_NIST) != 0, ctx) > 0;
959 ok = ok && EC_GROUP_check(EC_KEY_get0_group(eck), ctx);
962 if ((selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0) {
963 if (checktype == OSSL_KEYMGMT_VALIDATE_QUICK_CHECK)
964 ok = ok && ossl_ec_key_public_check_quick(eck, ctx);
966 ok = ok && ossl_ec_key_public_check(eck, ctx);
969 if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0)
970 ok = ok && ossl_ec_key_private_check(eck);
972 if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) == OSSL_KEYMGMT_SELECT_KEYPAIR)
973 ok = ok && ossl_ec_key_pairwise_check(eck, ctx);
980 OSSL_LIB_CTX *libctx;
986 BIGNUM *p, *a, *b, *order, *cofactor;
987 unsigned char *gen, *seed;
988 size_t gen_len, seed_len;
992 unsigned char *dhkem_ikm;
996 static void *ec_gen_init(void *provctx, int selection,
997 const OSSL_PARAM params[])
999 OSSL_LIB_CTX *libctx = PROV_LIBCTX_OF(provctx);
1000 struct ec_gen_ctx *gctx = NULL;
1002 if (!ossl_prov_is_running() || (selection & (EC_POSSIBLE_SELECTIONS)) == 0)
1005 if ((gctx = OPENSSL_zalloc(sizeof(*gctx))) != NULL) {
1006 gctx->libctx = libctx;
1007 gctx->selection = selection;
1008 gctx->ecdh_mode = 0;
1009 if (!ec_gen_set_params(gctx, params)) {
1018 # ifndef OPENSSL_NO_SM2
1019 static void *sm2_gen_init(void *provctx, int selection,
1020 const OSSL_PARAM params[])
1022 struct ec_gen_ctx *gctx = ec_gen_init(provctx, selection, params);
1025 if (gctx->group_name != NULL)
1027 if ((gctx->group_name = OPENSSL_strdup("sm2")) != NULL)
1029 ec_gen_cleanup(gctx);
1036 static int ec_gen_set_group(void *genctx, const EC_GROUP *src)
1038 struct ec_gen_ctx *gctx = genctx;
1041 group = EC_GROUP_dup(src);
1042 if (group == NULL) {
1043 ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_CURVE);
1046 EC_GROUP_free(gctx->gen_group);
1047 gctx->gen_group = group;
1051 static int ec_gen_set_template(void *genctx, void *templ)
1053 struct ec_gen_ctx *gctx = genctx;
1055 const EC_GROUP *ec_group;
1057 if (!ossl_prov_is_running() || gctx == NULL || ec == NULL)
1059 if ((ec_group = EC_KEY_get0_group(ec)) == NULL)
1061 return ec_gen_set_group(gctx, ec_group);
1064 #define COPY_INT_PARAM(params, key, val) \
1065 p = OSSL_PARAM_locate_const(params, key); \
1066 if (p != NULL && !OSSL_PARAM_get_int(p, &val)) \
1069 #define COPY_UTF8_PARAM(params, key, val) \
1070 p = OSSL_PARAM_locate_const(params, key); \
1072 if (p->data_type != OSSL_PARAM_UTF8_STRING) \
1074 OPENSSL_free(val); \
1075 val = OPENSSL_strdup(p->data); \
1080 #define COPY_OCTET_PARAM(params, key, val, len) \
1081 p = OSSL_PARAM_locate_const(params, key); \
1083 if (p->data_type != OSSL_PARAM_OCTET_STRING) \
1085 OPENSSL_free(val); \
1086 len = p->data_size; \
1087 val = OPENSSL_memdup(p->data, p->data_size); \
1092 #define COPY_BN_PARAM(params, key, bn) \
1093 p = OSSL_PARAM_locate_const(params, key); \
1097 if (bn == NULL || !OSSL_PARAM_get_BN(p, &bn)) \
1101 static int ec_gen_set_params(void *genctx, const OSSL_PARAM params[])
1104 struct ec_gen_ctx *gctx = genctx;
1105 const OSSL_PARAM *p;
1106 EC_GROUP *group = NULL;
1108 COPY_INT_PARAM(params, OSSL_PKEY_PARAM_USE_COFACTOR_ECDH, gctx->ecdh_mode);
1110 COPY_UTF8_PARAM(params, OSSL_PKEY_PARAM_GROUP_NAME, gctx->group_name);
1111 COPY_UTF8_PARAM(params, OSSL_PKEY_PARAM_EC_FIELD_TYPE, gctx->field_type);
1112 COPY_UTF8_PARAM(params, OSSL_PKEY_PARAM_EC_ENCODING, gctx->encoding);
1113 COPY_UTF8_PARAM(params, OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT, gctx->pt_format);
1114 COPY_UTF8_PARAM(params, OSSL_PKEY_PARAM_EC_GROUP_CHECK_TYPE, gctx->group_check);
1116 COPY_BN_PARAM(params, OSSL_PKEY_PARAM_EC_P, gctx->p);
1117 COPY_BN_PARAM(params, OSSL_PKEY_PARAM_EC_A, gctx->a);
1118 COPY_BN_PARAM(params, OSSL_PKEY_PARAM_EC_B, gctx->b);
1119 COPY_BN_PARAM(params, OSSL_PKEY_PARAM_EC_ORDER, gctx->order);
1120 COPY_BN_PARAM(params, OSSL_PKEY_PARAM_EC_COFACTOR, gctx->cofactor);
1122 COPY_OCTET_PARAM(params, OSSL_PKEY_PARAM_EC_SEED, gctx->seed, gctx->seed_len);
1123 COPY_OCTET_PARAM(params, OSSL_PKEY_PARAM_EC_GENERATOR, gctx->gen,
1126 COPY_OCTET_PARAM(params, OSSL_PKEY_PARAM_DHKEM_IKM, gctx->dhkem_ikm,
1127 gctx->dhkem_ikmlen);
1131 EC_GROUP_free(group);
1135 static int ec_gen_set_group_from_params(struct ec_gen_ctx *gctx)
1138 OSSL_PARAM_BLD *bld;
1139 OSSL_PARAM *params = NULL;
1140 EC_GROUP *group = NULL;
1142 bld = OSSL_PARAM_BLD_new();
1146 if (gctx->encoding != NULL
1147 && !OSSL_PARAM_BLD_push_utf8_string(bld, OSSL_PKEY_PARAM_EC_ENCODING,
1151 if (gctx->pt_format != NULL
1152 && !OSSL_PARAM_BLD_push_utf8_string(bld,
1153 OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT,
1154 gctx->pt_format, 0))
1157 if (gctx->group_name != NULL) {
1158 if (!OSSL_PARAM_BLD_push_utf8_string(bld, OSSL_PKEY_PARAM_GROUP_NAME,
1159 gctx->group_name, 0))
1161 /* Ignore any other parameters if there is a group name */
1163 } else if (gctx->field_type != NULL) {
1164 if (!OSSL_PARAM_BLD_push_utf8_string(bld, OSSL_PKEY_PARAM_EC_FIELD_TYPE,
1165 gctx->field_type, 0))
1173 || gctx->order == NULL
1174 || !OSSL_PARAM_BLD_push_BN(bld, OSSL_PKEY_PARAM_EC_P, gctx->p)
1175 || !OSSL_PARAM_BLD_push_BN(bld, OSSL_PKEY_PARAM_EC_A, gctx->a)
1176 || !OSSL_PARAM_BLD_push_BN(bld, OSSL_PKEY_PARAM_EC_B, gctx->b)
1177 || !OSSL_PARAM_BLD_push_BN(bld, OSSL_PKEY_PARAM_EC_ORDER, gctx->order))
1180 if (gctx->cofactor != NULL
1181 && !OSSL_PARAM_BLD_push_BN(bld, OSSL_PKEY_PARAM_EC_COFACTOR,
1185 if (gctx->seed != NULL
1186 && !OSSL_PARAM_BLD_push_octet_string(bld, OSSL_PKEY_PARAM_EC_SEED,
1187 gctx->seed, gctx->seed_len))
1190 if (gctx->gen == NULL
1191 || !OSSL_PARAM_BLD_push_octet_string(bld, OSSL_PKEY_PARAM_EC_GENERATOR,
1192 gctx->gen, gctx->gen_len))
1195 params = OSSL_PARAM_BLD_to_param(bld);
1198 group = EC_GROUP_new_from_params(params, gctx->libctx, NULL);
1202 EC_GROUP_free(gctx->gen_group);
1203 gctx->gen_group = group;
1207 OSSL_PARAM_free(params);
1208 OSSL_PARAM_BLD_free(bld);
1212 static const OSSL_PARAM *ec_gen_settable_params(ossl_unused void *genctx,
1213 ossl_unused void *provctx)
1215 static OSSL_PARAM settable[] = {
1216 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_GROUP_NAME, NULL, 0),
1217 OSSL_PARAM_int(OSSL_PKEY_PARAM_USE_COFACTOR_ECDH, NULL),
1218 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_ENCODING, NULL, 0),
1219 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT, NULL, 0),
1220 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_FIELD_TYPE, NULL, 0),
1221 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_P, NULL, 0),
1222 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_A, NULL, 0),
1223 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_B, NULL, 0),
1224 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_GENERATOR, NULL, 0),
1225 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_ORDER, NULL, 0),
1226 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_COFACTOR, NULL, 0),
1227 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_SEED, NULL, 0),
1228 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_DHKEM_IKM, NULL, 0),
1235 static int ec_gen_assign_group(EC_KEY *ec, EC_GROUP *group)
1237 if (group == NULL) {
1238 ERR_raise(ERR_LIB_PROV, PROV_R_NO_PARAMETERS_SET);
1241 return EC_KEY_set_group(ec, group) > 0;
1245 * The callback arguments (osslcb & cbarg) are not used by EC_KEY generation
1247 static void *ec_gen(void *genctx, OSSL_CALLBACK *osslcb, void *cbarg)
1249 struct ec_gen_ctx *gctx = genctx;
1253 if (!ossl_prov_is_running()
1255 || (ec = EC_KEY_new_ex(gctx->libctx, NULL)) == NULL)
1258 if (gctx->gen_group == NULL) {
1259 if (!ec_gen_set_group_from_params(gctx))
1262 if (gctx->encoding != NULL) {
1263 int flags = ossl_ec_encoding_name2id(gctx->encoding);
1267 EC_GROUP_set_asn1_flag(gctx->gen_group, flags);
1269 if (gctx->pt_format != NULL) {
1270 int format = ossl_ec_pt_format_name2id(gctx->pt_format);
1274 EC_GROUP_set_point_conversion_form(gctx->gen_group, format);
1278 /* We must always assign a group, no matter what */
1279 ret = ec_gen_assign_group(ec, gctx->gen_group);
1281 /* Whether you want it or not, you get a keypair, not just one half */
1282 if ((gctx->selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0) {
1284 if (gctx->dhkem_ikm != NULL && gctx->dhkem_ikmlen != 0)
1285 ret = ret && ossl_ec_generate_key_dhkem(ec, gctx->dhkem_ikm,
1286 gctx->dhkem_ikmlen);
1289 ret = ret && EC_KEY_generate_key(ec);
1292 if (gctx->ecdh_mode != -1)
1293 ret = ret && ossl_ec_set_ecdh_cofactor_mode(ec, gctx->ecdh_mode);
1295 if (gctx->group_check != NULL)
1296 ret = ret && ossl_ec_set_check_group_type_from_name(ec,
1301 /* Something went wrong, throw the key away */
1307 # ifndef OPENSSL_NO_SM2
1309 * The callback arguments (osslcb & cbarg) are not used by EC_KEY generation
1311 static void *sm2_gen(void *genctx, OSSL_CALLBACK *osslcb, void *cbarg)
1313 struct ec_gen_ctx *gctx = genctx;
1318 || (ec = EC_KEY_new_ex(gctx->libctx, NULL)) == NULL)
1321 if (gctx->gen_group == NULL) {
1322 if (!ec_gen_set_group_from_params(gctx))
1325 if (gctx->encoding) {
1326 int flags = ossl_ec_encoding_name2id(gctx->encoding);
1330 EC_GROUP_set_asn1_flag(gctx->gen_group, flags);
1332 if (gctx->pt_format != NULL) {
1333 int format = ossl_ec_pt_format_name2id(gctx->pt_format);
1337 EC_GROUP_set_point_conversion_form(gctx->gen_group, format);
1341 /* We must always assign a group, no matter what */
1342 ret = ec_gen_assign_group(ec, gctx->gen_group);
1344 /* Whether you want it or not, you get a keypair, not just one half */
1345 if ((gctx->selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0)
1346 ret = ret && EC_KEY_generate_key(ec);
1351 /* Something went wrong, throw the key away */
1358 static void ec_gen_cleanup(void *genctx)
1360 struct ec_gen_ctx *gctx = genctx;
1365 OPENSSL_clear_free(gctx->dhkem_ikm, gctx->dhkem_ikmlen);
1366 EC_GROUP_free(gctx->gen_group);
1370 BN_free(gctx->order);
1371 BN_free(gctx->cofactor);
1372 OPENSSL_free(gctx->group_name);
1373 OPENSSL_free(gctx->field_type);
1374 OPENSSL_free(gctx->pt_format);
1375 OPENSSL_free(gctx->encoding);
1376 OPENSSL_free(gctx->seed);
1377 OPENSSL_free(gctx->gen);
1381 static void *common_load(const void *reference, size_t reference_sz,
1386 if (ossl_prov_is_running() && reference_sz == sizeof(ec)) {
1387 /* The contents of the reference is the address to our object */
1388 ec = *(EC_KEY **)reference;
1390 if (!common_check_sm2(ec, sm2_wanted))
1393 /* We grabbed, so we detach it */
1394 *(EC_KEY **)reference = NULL;
1400 static void *ec_load(const void *reference, size_t reference_sz)
1402 return common_load(reference, reference_sz, 0);
1406 # ifndef OPENSSL_NO_SM2
1407 static void *sm2_load(const void *reference, size_t reference_sz)
1409 return common_load(reference, reference_sz, 1);
1414 static void *ec_dup(const void *keydata_from, int selection)
1416 if (ossl_prov_is_running())
1417 return ossl_ec_key_dup(keydata_from, selection);
1421 const OSSL_DISPATCH ossl_ec_keymgmt_functions[] = {
1422 { OSSL_FUNC_KEYMGMT_NEW, (void (*)(void))ec_newdata },
1423 { OSSL_FUNC_KEYMGMT_GEN_INIT, (void (*)(void))ec_gen_init },
1424 { OSSL_FUNC_KEYMGMT_GEN_SET_TEMPLATE,
1425 (void (*)(void))ec_gen_set_template },
1426 { OSSL_FUNC_KEYMGMT_GEN_SET_PARAMS, (void (*)(void))ec_gen_set_params },
1427 { OSSL_FUNC_KEYMGMT_GEN_SETTABLE_PARAMS,
1428 (void (*)(void))ec_gen_settable_params },
1429 { OSSL_FUNC_KEYMGMT_GEN, (void (*)(void))ec_gen },
1430 { OSSL_FUNC_KEYMGMT_GEN_CLEANUP, (void (*)(void))ec_gen_cleanup },
1431 { OSSL_FUNC_KEYMGMT_LOAD, (void (*)(void))ec_load },
1432 { OSSL_FUNC_KEYMGMT_FREE, (void (*)(void))ec_freedata },
1433 { OSSL_FUNC_KEYMGMT_GET_PARAMS, (void (*) (void))ec_get_params },
1434 { OSSL_FUNC_KEYMGMT_GETTABLE_PARAMS, (void (*) (void))ec_gettable_params },
1435 { OSSL_FUNC_KEYMGMT_SET_PARAMS, (void (*) (void))ec_set_params },
1436 { OSSL_FUNC_KEYMGMT_SETTABLE_PARAMS, (void (*) (void))ec_settable_params },
1437 { OSSL_FUNC_KEYMGMT_HAS, (void (*)(void))ec_has },
1438 { OSSL_FUNC_KEYMGMT_MATCH, (void (*)(void))ec_match },
1439 { OSSL_FUNC_KEYMGMT_VALIDATE, (void (*)(void))ec_validate },
1440 { OSSL_FUNC_KEYMGMT_IMPORT, (void (*)(void))ec_import },
1441 { OSSL_FUNC_KEYMGMT_IMPORT_TYPES, (void (*)(void))ec_import_types },
1442 { OSSL_FUNC_KEYMGMT_EXPORT, (void (*)(void))ec_export },
1443 { OSSL_FUNC_KEYMGMT_EXPORT_TYPES, (void (*)(void))ec_export_types },
1444 { OSSL_FUNC_KEYMGMT_QUERY_OPERATION_NAME,
1445 (void (*)(void))ec_query_operation_name },
1446 { OSSL_FUNC_KEYMGMT_DUP, (void (*)(void))ec_dup },
1451 # ifndef OPENSSL_NO_SM2
1452 const OSSL_DISPATCH ossl_sm2_keymgmt_functions[] = {
1453 { OSSL_FUNC_KEYMGMT_NEW, (void (*)(void))sm2_newdata },
1454 { OSSL_FUNC_KEYMGMT_GEN_INIT, (void (*)(void))sm2_gen_init },
1455 { OSSL_FUNC_KEYMGMT_GEN_SET_TEMPLATE,
1456 (void (*)(void))ec_gen_set_template },
1457 { OSSL_FUNC_KEYMGMT_GEN_SET_PARAMS, (void (*)(void))ec_gen_set_params },
1458 { OSSL_FUNC_KEYMGMT_GEN_SETTABLE_PARAMS,
1459 (void (*)(void))ec_gen_settable_params },
1460 { OSSL_FUNC_KEYMGMT_GEN, (void (*)(void))sm2_gen },
1461 { OSSL_FUNC_KEYMGMT_GEN_CLEANUP, (void (*)(void))ec_gen_cleanup },
1462 { OSSL_FUNC_KEYMGMT_LOAD, (void (*)(void))sm2_load },
1463 { OSSL_FUNC_KEYMGMT_FREE, (void (*)(void))ec_freedata },
1464 { OSSL_FUNC_KEYMGMT_GET_PARAMS, (void (*) (void))sm2_get_params },
1465 { OSSL_FUNC_KEYMGMT_GETTABLE_PARAMS, (void (*) (void))sm2_gettable_params },
1466 { OSSL_FUNC_KEYMGMT_SET_PARAMS, (void (*) (void))ec_set_params },
1467 { OSSL_FUNC_KEYMGMT_SETTABLE_PARAMS, (void (*) (void))sm2_settable_params },
1468 { OSSL_FUNC_KEYMGMT_HAS, (void (*)(void))ec_has },
1469 { OSSL_FUNC_KEYMGMT_MATCH, (void (*)(void))ec_match },
1470 { OSSL_FUNC_KEYMGMT_VALIDATE, (void (*)(void))sm2_validate },
1471 { OSSL_FUNC_KEYMGMT_IMPORT, (void (*)(void))sm2_import },
1472 { OSSL_FUNC_KEYMGMT_IMPORT_TYPES, (void (*)(void))ec_import_types },
1473 { OSSL_FUNC_KEYMGMT_EXPORT, (void (*)(void))ec_export },
1474 { OSSL_FUNC_KEYMGMT_EXPORT_TYPES, (void (*)(void))ec_export_types },
1475 { OSSL_FUNC_KEYMGMT_QUERY_OPERATION_NAME,
1476 (void (*)(void))sm2_query_operation_name },
1477 { OSSL_FUNC_KEYMGMT_DUP, (void (*)(void))ec_dup },