2 * Copyright 2020-2022 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);
164 y = BN_CTX_get(bnctx);
166 if (!EC_POINT_get_affine_coordinates(ecg, pub_point, x, y, bnctx))
169 && !ossl_param_build_set_bn(tmpl, px,
170 OSSL_PKEY_PARAM_EC_PUB_X, x))
173 && !ossl_param_build_set_bn(tmpl, py,
174 OSSL_PKEY_PARAM_EC_PUB_Y, y))
179 if (priv_key != NULL && include_private) {
184 * Key import/export should never leak the bit length of the secret
187 * For this reason, on export we use padded BIGNUMs with fixed length.
189 * When importing we also should make sure that, even if short lived,
190 * the newly created BIGNUM is marked with the BN_FLG_CONSTTIME flag as
191 * soon as possible, so that any processing of this BIGNUM might opt for
192 * constant time implementations in the backend.
194 * Setting the BN_FLG_CONSTTIME flag alone is never enough, we also have
195 * to preallocate the BIGNUM internal buffer to a fixed public size big
196 * enough that operations performed during the processing never trigger
197 * a realloc which would leak the size of the scalar through memory
203 * The order of the large prime subgroup of the curve is our choice for
204 * a fixed public size, as that is generally the upper bound for
205 * generating a private key in EC cryptosystems and should fit all valid
208 * For padding on export we just use the bit length of the order
209 * converted to bytes (rounding up).
211 * For preallocating the BIGNUM storage we look at the number of "words"
212 * required for the internal representation of the order, and we
213 * preallocate 2 extra "words" in case any of the subsequent processing
214 * might temporarily overflow the order length.
216 ecbits = EC_GROUP_order_bits(ecg);
219 sz = (ecbits + 7) / 8;
221 if (!ossl_param_build_set_bn_pad(tmpl, params,
222 OSSL_PKEY_PARAM_PRIV_KEY,
233 int otherparams_to_params(const EC_KEY *ec, OSSL_PARAM_BLD *tmpl,
236 int ecdh_cofactor_mode = 0, group_check = 0;
237 const char *name = NULL;
238 point_conversion_form_t format;
243 format = EC_KEY_get_conv_form(ec);
244 name = ossl_ec_pt_format_id2name((int)format);
246 && !ossl_param_build_set_utf8_string(tmpl, params,
247 OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT,
251 group_check = EC_KEY_get_flags(ec) & EC_FLAG_CHECK_NAMED_GROUP_MASK;
252 name = ossl_ec_check_group_type_id2name(group_check);
254 && !ossl_param_build_set_utf8_string(tmpl, params,
255 OSSL_PKEY_PARAM_EC_GROUP_CHECK_TYPE,
259 if ((EC_KEY_get_enc_flags(ec) & EC_PKEY_NO_PUBKEY) != 0
260 && !ossl_param_build_set_int(tmpl, params,
261 OSSL_PKEY_PARAM_EC_INCLUDE_PUBLIC, 0))
265 (EC_KEY_get_flags(ec) & EC_FLAG_COFACTOR_ECDH) ? 1 : 0;
266 return ossl_param_build_set_int(tmpl, params,
267 OSSL_PKEY_PARAM_USE_COFACTOR_ECDH,
272 void *ec_newdata(void *provctx)
274 if (!ossl_prov_is_running())
276 return EC_KEY_new_ex(PROV_LIBCTX_OF(provctx), NULL);
280 # ifndef OPENSSL_NO_SM2
282 void *sm2_newdata(void *provctx)
284 if (!ossl_prov_is_running())
286 return EC_KEY_new_by_curve_name_ex(PROV_LIBCTX_OF(provctx), NULL, NID_sm2);
292 void ec_freedata(void *keydata)
294 EC_KEY_free(keydata);
298 int ec_has(const void *keydata, int selection)
300 const EC_KEY *ec = keydata;
303 if (!ossl_prov_is_running() || ec == NULL)
305 if ((selection & EC_POSSIBLE_SELECTIONS) == 0)
306 return 1; /* the selection is not missing */
308 if ((selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0)
309 ok = ok && (EC_KEY_get0_public_key(ec) != NULL);
310 if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0)
311 ok = ok && (EC_KEY_get0_private_key(ec) != NULL);
312 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0)
313 ok = ok && (EC_KEY_get0_group(ec) != NULL);
315 * We consider OSSL_KEYMGMT_SELECT_OTHER_PARAMETERS to always be
316 * available, so no extra check is needed other than the previous one
317 * against EC_POSSIBLE_SELECTIONS.
322 static int ec_match(const void *keydata1, const void *keydata2, int selection)
324 const EC_KEY *ec1 = keydata1;
325 const EC_KEY *ec2 = keydata2;
326 const EC_GROUP *group_a = EC_KEY_get0_group(ec1);
327 const EC_GROUP *group_b = EC_KEY_get0_group(ec2);
331 if (!ossl_prov_is_running())
334 ctx = BN_CTX_new_ex(ossl_ec_key_get_libctx(ec1));
338 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0)
339 ok = ok && group_a != NULL && group_b != NULL
340 && EC_GROUP_cmp(group_a, group_b, ctx) == 0;
341 if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0) {
344 if ((selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0) {
345 const EC_POINT *pa = EC_KEY_get0_public_key(ec1);
346 const EC_POINT *pb = EC_KEY_get0_public_key(ec2);
348 if (pa != NULL && pb != NULL) {
349 ok = ok && EC_POINT_cmp(group_b, pa, pb, ctx) == 0;
354 && (selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0) {
355 const BIGNUM *pa = EC_KEY_get0_private_key(ec1);
356 const BIGNUM *pb = EC_KEY_get0_private_key(ec2);
358 if (pa != NULL && pb != NULL) {
359 ok = ok && BN_cmp(pa, pb) == 0;
363 ok = ok && key_checked;
369 static int common_check_sm2(const EC_KEY *ec, int sm2_wanted)
371 const EC_GROUP *ecg = NULL;
374 * sm2_wanted: import the keys or domparams only on SM2 Curve
375 * !sm2_wanted: import the keys or domparams only not on SM2 Curve
377 if ((ecg = EC_KEY_get0_group(ec)) == NULL
378 || (sm2_wanted ^ (EC_GROUP_get_curve_name(ecg) == NID_sm2)))
384 int common_import(void *keydata, int selection, const OSSL_PARAM params[],
387 EC_KEY *ec = keydata;
390 if (!ossl_prov_is_running() || ec == NULL)
394 * In this implementation, we can export/import only keydata in the
395 * following combinations:
396 * - domain parameters (+optional other params)
397 * - public key with associated domain parameters (+optional other params)
398 * - private key with associated domain parameters and optional public key
399 * (+optional other params)
402 * - domain parameters must always be requested
403 * - private key must be requested alongside public key
404 * - other parameters are always optional
406 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) == 0)
409 ok = ok && ossl_ec_group_fromdata(ec, params);
411 if (!common_check_sm2(ec, sm2_wanted))
414 if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0) {
415 int include_private =
416 selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY ? 1 : 0;
418 ok = ok && ossl_ec_key_fromdata(ec, params, include_private);
420 if ((selection & OSSL_KEYMGMT_SELECT_OTHER_PARAMETERS) != 0)
421 ok = ok && ossl_ec_key_otherparams_fromdata(ec, params);
427 int ec_import(void *keydata, int selection, const OSSL_PARAM params[])
429 return common_import(keydata, selection, params, 0);
433 # ifndef OPENSSL_NO_SM2
435 int sm2_import(void *keydata, int selection, const OSSL_PARAM params[])
437 return common_import(keydata, selection, params, 1);
443 int ec_export(void *keydata, int selection, OSSL_CALLBACK *param_cb,
446 EC_KEY *ec = keydata;
447 OSSL_PARAM_BLD *tmpl = NULL;
448 OSSL_PARAM *params = NULL;
449 unsigned char *pub_key = NULL, *genbuf = NULL;
450 BN_CTX *bnctx = NULL;
453 if (!ossl_prov_is_running() || ec == NULL)
457 * In this implementation, we can export/import only keydata in the
458 * following combinations:
459 * - domain parameters (+optional other params)
460 * - public key with associated domain parameters (+optional other params)
461 * - private key with associated public key and domain parameters
462 * (+optional other params)
465 * - domain parameters must always be requested
466 * - private key must be requested alongside public key
467 * - other parameters are always optional
469 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) == 0)
471 if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0
472 && (selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) == 0)
475 tmpl = OSSL_PARAM_BLD_new();
479 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0) {
480 bnctx = BN_CTX_new_ex(ossl_ec_key_get_libctx(ec));
486 ok = ok && ossl_ec_group_todata(EC_KEY_get0_group(ec), tmpl, NULL,
487 ossl_ec_key_get_libctx(ec),
488 ossl_ec_key_get0_propq(ec),
492 if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0) {
493 int include_private =
494 selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY ? 1 : 0;
496 ok = ok && key_to_params(ec, tmpl, NULL, include_private, &pub_key);
498 if ((selection & OSSL_KEYMGMT_SELECT_OTHER_PARAMETERS) != 0)
499 ok = ok && otherparams_to_params(ec, tmpl, NULL);
501 if (!ok || (params = OSSL_PARAM_BLD_to_param(tmpl)) == NULL) {
506 ok = param_cb(params, cbarg);
507 OSSL_PARAM_free(params);
509 OSSL_PARAM_BLD_free(tmpl);
510 OPENSSL_free(pub_key);
511 OPENSSL_free(genbuf);
517 /* IMEXPORT = IMPORT + EXPORT */
519 # define EC_IMEXPORTABLE_DOM_PARAMETERS \
520 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_GROUP_NAME, NULL, 0), \
521 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_ENCODING, NULL, 0), \
522 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT, NULL, 0),\
523 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_FIELD_TYPE, NULL, 0), \
524 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_P, NULL, 0), \
525 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_A, NULL, 0), \
526 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_B, NULL, 0), \
527 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_GENERATOR, NULL, 0), \
528 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_ORDER, NULL, 0), \
529 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_COFACTOR, NULL, 0), \
530 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_SEED, NULL, 0), \
531 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_DECODED_FROM_EXPLICIT_PARAMS, NULL)
533 # define EC_IMEXPORTABLE_PUBLIC_KEY \
534 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_PUB_KEY, NULL, 0)
535 # define EC_IMEXPORTABLE_PRIVATE_KEY \
536 OSSL_PARAM_BN(OSSL_PKEY_PARAM_PRIV_KEY, NULL, 0)
537 # define EC_IMEXPORTABLE_OTHER_PARAMETERS \
538 OSSL_PARAM_int(OSSL_PKEY_PARAM_USE_COFACTOR_ECDH, NULL), \
539 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_INCLUDE_PUBLIC, NULL)
542 * Include all the possible combinations of OSSL_PARAM arrays for
543 * ec_imexport_types().
545 * They are in a separate file as it is ~100 lines of unreadable and
546 * uninteresting machine generated stuff.
548 #include "ec_kmgmt_imexport.inc"
551 const OSSL_PARAM *ec_imexport_types(int selection)
555 if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0)
557 if ((selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0)
559 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0)
561 if ((selection & OSSL_KEYMGMT_SELECT_OTHER_PARAMETERS) != 0)
563 return ec_types[type_select];
567 const OSSL_PARAM *ec_import_types(int selection)
569 return ec_imexport_types(selection);
573 const OSSL_PARAM *ec_export_types(int selection)
575 return ec_imexport_types(selection);
578 static int ec_get_ecm_params(const EC_GROUP *group, OSSL_PARAM params[])
580 #ifdef OPENSSL_NO_EC2M
584 unsigned int k1 = 0, k2 = 0, k3 = 0;
586 const char *basis_name = NULL;
587 int fid = EC_GROUP_get_field_type(group);
589 if (fid != NID_X9_62_characteristic_two_field)
592 basis_nid = EC_GROUP_get_basis_type(group);
593 if (basis_nid == NID_X9_62_tpBasis)
594 basis_name = SN_X9_62_tpBasis;
595 else if (basis_nid == NID_X9_62_ppBasis)
596 basis_name = SN_X9_62_ppBasis;
600 m = EC_GROUP_get_degree(group);
601 if (!ossl_param_build_set_int(NULL, params, OSSL_PKEY_PARAM_EC_CHAR2_M, m)
602 || !ossl_param_build_set_utf8_string(NULL, params,
603 OSSL_PKEY_PARAM_EC_CHAR2_TYPE,
607 if (basis_nid == NID_X9_62_tpBasis) {
608 if (!EC_GROUP_get_trinomial_basis(group, &k1)
609 || !ossl_param_build_set_int(NULL, params,
610 OSSL_PKEY_PARAM_EC_CHAR2_TP_BASIS,
614 if (!EC_GROUP_get_pentanomial_basis(group, &k1, &k2, &k3)
615 || !ossl_param_build_set_int(NULL, params,
616 OSSL_PKEY_PARAM_EC_CHAR2_PP_K1, (int)k1)
617 || !ossl_param_build_set_int(NULL, params,
618 OSSL_PKEY_PARAM_EC_CHAR2_PP_K2, (int)k2)
619 || !ossl_param_build_set_int(NULL, params,
620 OSSL_PKEY_PARAM_EC_CHAR2_PP_K3, (int)k3))
626 #endif /* OPENSSL_NO_EC2M */
630 int common_get_params(void *key, OSSL_PARAM params[], int sm2)
634 const EC_GROUP *ecg = NULL;
636 unsigned char *pub_key = NULL, *genbuf = NULL;
637 OSSL_LIB_CTX *libctx;
639 BN_CTX *bnctx = NULL;
641 ecg = EC_KEY_get0_group(eck);
643 ERR_raise(ERR_LIB_PROV, PROV_R_NO_PARAMETERS_SET);
647 libctx = ossl_ec_key_get_libctx(eck);
648 propq = ossl_ec_key_get0_propq(eck);
650 bnctx = BN_CTX_new_ex(libctx);
655 if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_MAX_SIZE)) != NULL
656 && !OSSL_PARAM_set_int(p, ECDSA_size(eck)))
658 if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_BITS)) != NULL
659 && !OSSL_PARAM_set_int(p, EC_GROUP_order_bits(ecg)))
661 if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_SECURITY_BITS)) != NULL) {
662 int ecbits, sec_bits;
664 ecbits = EC_GROUP_order_bits(ecg);
667 * The following estimates are based on the values published
668 * in Table 2 of "NIST Special Publication 800-57 Part 1 Revision 4"
669 * at http://dx.doi.org/10.6028/NIST.SP.800-57pt1r4 .
671 * Note that the above reference explicitly categorizes algorithms in a
672 * discrete set of values {80, 112, 128, 192, 256}, and that it is
673 * relevant only for NIST approved Elliptic Curves, while OpenSSL
674 * applies the same logic also to other curves.
676 * Classifications produced by other standardazing bodies might differ,
677 * so the results provided for "bits of security" by this provider are
678 * to be considered merely indicative, and it is the users'
679 * responsibility to compare these values against the normative
680 * references that may be relevant for their intent and purposes.
684 else if (ecbits >= 384)
686 else if (ecbits >= 256)
688 else if (ecbits >= 224)
690 else if (ecbits >= 160)
693 sec_bits = ecbits / 2;
695 if (!OSSL_PARAM_set_int(p, sec_bits))
699 if ((p = OSSL_PARAM_locate(params,
700 OSSL_PKEY_PARAM_EC_DECODED_FROM_EXPLICIT_PARAMS))
702 int explicitparams = EC_KEY_decoded_from_explicit_params(eck);
704 if (explicitparams < 0
705 || !OSSL_PARAM_set_int(p, explicitparams))
710 if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_DEFAULT_DIGEST)) != NULL
711 && !OSSL_PARAM_set_utf8_string(p, EC_DEFAULT_MD))
714 if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_DEFAULT_DIGEST)) != NULL
715 && !OSSL_PARAM_set_utf8_string(p, SM2_DEFAULT_MD))
719 /* SM2 doesn't support this PARAM */
721 p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_USE_COFACTOR_ECDH);
723 int ecdh_cofactor_mode = 0;
726 (EC_KEY_get_flags(eck) & EC_FLAG_COFACTOR_ECDH) ? 1 : 0;
728 if (!OSSL_PARAM_set_int(p, ecdh_cofactor_mode))
732 if ((p = OSSL_PARAM_locate(params,
733 OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY)) != NULL) {
734 const EC_POINT *ecp = EC_KEY_get0_public_key(key);
737 ERR_raise(ERR_LIB_PROV, PROV_R_NOT_A_PUBLIC_KEY);
740 p->return_size = EC_POINT_point2oct(ecg, ecp,
741 POINT_CONVERSION_UNCOMPRESSED,
742 p->data, p->return_size, bnctx);
743 if (p->return_size == 0)
747 ret = ec_get_ecm_params(ecg, params)
748 && ossl_ec_group_todata(ecg, NULL, params, libctx, propq, bnctx,
750 && key_to_params(eck, NULL, params, 1, &pub_key)
751 && otherparams_to_params(eck, NULL, params);
753 OPENSSL_free(genbuf);
754 OPENSSL_free(pub_key);
761 int ec_get_params(void *key, OSSL_PARAM params[])
763 return common_get_params(key, params, 0);
766 #ifndef OPENSSL_NO_EC2M
767 # define EC2M_GETTABLE_DOM_PARAMS \
768 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_CHAR2_M, NULL), \
769 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_CHAR2_TYPE, NULL, 0), \
770 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_CHAR2_TP_BASIS, NULL), \
771 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_CHAR2_PP_K1, NULL), \
772 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_CHAR2_PP_K2, NULL), \
773 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_CHAR2_PP_K3, NULL),
775 # define EC2M_GETTABLE_DOM_PARAMS
778 static const OSSL_PARAM ec_known_gettable_params[] = {
779 OSSL_PARAM_int(OSSL_PKEY_PARAM_BITS, NULL),
780 OSSL_PARAM_int(OSSL_PKEY_PARAM_SECURITY_BITS, NULL),
781 OSSL_PARAM_int(OSSL_PKEY_PARAM_MAX_SIZE, NULL),
782 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_DEFAULT_DIGEST, NULL, 0),
783 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY, NULL, 0),
784 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_DECODED_FROM_EXPLICIT_PARAMS, NULL),
785 EC_IMEXPORTABLE_DOM_PARAMETERS,
786 EC2M_GETTABLE_DOM_PARAMS
787 EC_IMEXPORTABLE_PUBLIC_KEY,
788 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_PUB_X, NULL, 0),
789 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_PUB_Y, NULL, 0),
790 EC_IMEXPORTABLE_PRIVATE_KEY,
791 EC_IMEXPORTABLE_OTHER_PARAMETERS,
796 const OSSL_PARAM *ec_gettable_params(void *provctx)
798 return ec_known_gettable_params;
801 static const OSSL_PARAM ec_known_settable_params[] = {
802 OSSL_PARAM_int(OSSL_PKEY_PARAM_USE_COFACTOR_ECDH, NULL),
803 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY, NULL, 0),
804 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_ENCODING, NULL, 0),
805 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT, NULL, 0),
806 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_SEED, NULL, 0),
807 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_INCLUDE_PUBLIC, NULL),
808 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_GROUP_CHECK_TYPE, NULL, 0),
813 const OSSL_PARAM *ec_settable_params(void *provctx)
815 return ec_known_settable_params;
819 int ec_set_params(void *key, const OSSL_PARAM params[])
830 if (!ossl_ec_group_set_params((EC_GROUP *)EC_KEY_get0_group(key), params))
833 p = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY);
835 BN_CTX *ctx = BN_CTX_new_ex(ossl_ec_key_get_libctx(key));
839 || p->data_type != OSSL_PARAM_OCTET_STRING
840 || !EC_KEY_oct2key(key, p->data, p->data_size, ctx))
847 return ossl_ec_key_otherparams_fromdata(eck, params);
851 # ifndef OPENSSL_NO_SM2
853 int sm2_get_params(void *key, OSSL_PARAM params[])
855 return common_get_params(key, params, 1);
858 static const OSSL_PARAM sm2_known_gettable_params[] = {
859 OSSL_PARAM_int(OSSL_PKEY_PARAM_BITS, NULL),
860 OSSL_PARAM_int(OSSL_PKEY_PARAM_SECURITY_BITS, NULL),
861 OSSL_PARAM_int(OSSL_PKEY_PARAM_MAX_SIZE, NULL),
862 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_DEFAULT_DIGEST, NULL, 0),
863 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY, NULL, 0),
864 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_DECODED_FROM_EXPLICIT_PARAMS, NULL),
865 EC_IMEXPORTABLE_DOM_PARAMETERS,
866 EC_IMEXPORTABLE_PUBLIC_KEY,
867 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_PUB_X, NULL, 0),
868 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_PUB_Y, NULL, 0),
869 EC_IMEXPORTABLE_PRIVATE_KEY,
874 const OSSL_PARAM *sm2_gettable_params(ossl_unused void *provctx)
876 return sm2_known_gettable_params;
879 static const OSSL_PARAM sm2_known_settable_params[] = {
880 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY, NULL, 0),
885 const OSSL_PARAM *sm2_settable_params(ossl_unused void *provctx)
887 return sm2_known_settable_params;
891 int sm2_validate(const void *keydata, int selection, int checktype)
893 const EC_KEY *eck = keydata;
897 if (!ossl_prov_is_running())
900 if ((selection & EC_POSSIBLE_SELECTIONS) == 0)
901 return 1; /* nothing to validate */
903 ctx = BN_CTX_new_ex(ossl_ec_key_get_libctx(eck));
907 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0)
908 ok = ok && EC_GROUP_check(EC_KEY_get0_group(eck), ctx);
910 if ((selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0) {
911 if (checktype == OSSL_KEYMGMT_VALIDATE_QUICK_CHECK)
912 ok = ok && ossl_ec_key_public_check_quick(eck, ctx);
914 ok = ok && ossl_ec_key_public_check(eck, ctx);
917 if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0)
918 ok = ok && ossl_sm2_key_private_check(eck);
920 if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) == OSSL_KEYMGMT_SELECT_KEYPAIR)
921 ok = ok && ossl_ec_key_pairwise_check(eck, ctx);
930 int ec_validate(const void *keydata, int selection, int checktype)
932 const EC_KEY *eck = keydata;
936 if (!ossl_prov_is_running())
939 if ((selection & EC_POSSIBLE_SELECTIONS) == 0)
940 return 1; /* nothing to validate */
942 ctx = BN_CTX_new_ex(ossl_ec_key_get_libctx(eck));
946 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0) {
947 int flags = EC_KEY_get_flags(eck);
949 if ((flags & EC_FLAG_CHECK_NAMED_GROUP) != 0)
950 ok = ok && EC_GROUP_check_named_curve(EC_KEY_get0_group(eck),
951 (flags & EC_FLAG_CHECK_NAMED_GROUP_NIST) != 0, ctx) > 0;
953 ok = ok && EC_GROUP_check(EC_KEY_get0_group(eck), ctx);
956 if ((selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0) {
957 if (checktype == OSSL_KEYMGMT_VALIDATE_QUICK_CHECK)
958 ok = ok && ossl_ec_key_public_check_quick(eck, ctx);
960 ok = ok && ossl_ec_key_public_check(eck, ctx);
963 if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0)
964 ok = ok && ossl_ec_key_private_check(eck);
966 if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) == OSSL_KEYMGMT_SELECT_KEYPAIR)
967 ok = ok && ossl_ec_key_pairwise_check(eck, ctx);
974 OSSL_LIB_CTX *libctx;
980 BIGNUM *p, *a, *b, *order, *cofactor;
981 unsigned char *gen, *seed;
982 size_t gen_len, seed_len;
986 unsigned char *dhkem_ikm;
990 static void *ec_gen_init(void *provctx, int selection,
991 const OSSL_PARAM params[])
993 OSSL_LIB_CTX *libctx = PROV_LIBCTX_OF(provctx);
994 struct ec_gen_ctx *gctx = NULL;
996 if (!ossl_prov_is_running() || (selection & (EC_POSSIBLE_SELECTIONS)) == 0)
999 if ((gctx = OPENSSL_zalloc(sizeof(*gctx))) != NULL) {
1000 gctx->libctx = libctx;
1001 gctx->selection = selection;
1002 gctx->ecdh_mode = 0;
1004 if (!ec_gen_set_params(gctx, params)) {
1012 # ifndef OPENSSL_NO_SM2
1013 static void *sm2_gen_init(void *provctx, int selection,
1014 const OSSL_PARAM params[])
1016 struct ec_gen_ctx *gctx = ec_gen_init(provctx, selection, params);
1019 if (gctx->group_name != NULL)
1021 if ((gctx->group_name = OPENSSL_strdup("sm2")) != NULL)
1023 ec_gen_cleanup(gctx);
1030 static int ec_gen_set_group(void *genctx, const EC_GROUP *src)
1032 struct ec_gen_ctx *gctx = genctx;
1035 group = EC_GROUP_dup(src);
1036 if (group == NULL) {
1037 ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_CURVE);
1040 EC_GROUP_free(gctx->gen_group);
1041 gctx->gen_group = group;
1045 static int ec_gen_set_template(void *genctx, void *templ)
1047 struct ec_gen_ctx *gctx = genctx;
1049 const EC_GROUP *ec_group;
1051 if (!ossl_prov_is_running() || gctx == NULL || ec == NULL)
1053 if ((ec_group = EC_KEY_get0_group(ec)) == NULL)
1055 return ec_gen_set_group(gctx, ec_group);
1058 #define COPY_INT_PARAM(params, key, val) \
1059 p = OSSL_PARAM_locate_const(params, key); \
1060 if (p != NULL && !OSSL_PARAM_get_int(p, &val)) \
1063 #define COPY_UTF8_PARAM(params, key, val) \
1064 p = OSSL_PARAM_locate_const(params, key); \
1066 if (p->data_type != OSSL_PARAM_UTF8_STRING) \
1068 OPENSSL_free(val); \
1069 val = OPENSSL_strdup(p->data); \
1074 #define COPY_OCTET_PARAM(params, key, val, len) \
1075 p = OSSL_PARAM_locate_const(params, key); \
1077 if (p->data_type != OSSL_PARAM_OCTET_STRING) \
1079 OPENSSL_free(val); \
1080 len = p->data_size; \
1081 val = OPENSSL_memdup(p->data, p->data_size); \
1086 #define COPY_BN_PARAM(params, key, bn) \
1087 p = OSSL_PARAM_locate_const(params, key); \
1091 if (bn == NULL || !OSSL_PARAM_get_BN(p, &bn)) \
1095 static int ec_gen_set_params(void *genctx, const OSSL_PARAM params[])
1098 struct ec_gen_ctx *gctx = genctx;
1099 const OSSL_PARAM *p;
1100 EC_GROUP *group = NULL;
1102 COPY_INT_PARAM(params, OSSL_PKEY_PARAM_USE_COFACTOR_ECDH, gctx->ecdh_mode);
1104 COPY_UTF8_PARAM(params, OSSL_PKEY_PARAM_GROUP_NAME, gctx->group_name);
1105 COPY_UTF8_PARAM(params, OSSL_PKEY_PARAM_EC_FIELD_TYPE, gctx->field_type);
1106 COPY_UTF8_PARAM(params, OSSL_PKEY_PARAM_EC_ENCODING, gctx->encoding);
1107 COPY_UTF8_PARAM(params, OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT, gctx->pt_format);
1108 COPY_UTF8_PARAM(params, OSSL_PKEY_PARAM_EC_GROUP_CHECK_TYPE, gctx->group_check);
1110 COPY_BN_PARAM(params, OSSL_PKEY_PARAM_EC_P, gctx->p);
1111 COPY_BN_PARAM(params, OSSL_PKEY_PARAM_EC_A, gctx->a);
1112 COPY_BN_PARAM(params, OSSL_PKEY_PARAM_EC_B, gctx->b);
1113 COPY_BN_PARAM(params, OSSL_PKEY_PARAM_EC_ORDER, gctx->order);
1114 COPY_BN_PARAM(params, OSSL_PKEY_PARAM_EC_COFACTOR, gctx->cofactor);
1116 COPY_OCTET_PARAM(params, OSSL_PKEY_PARAM_EC_SEED, gctx->seed, gctx->seed_len);
1117 COPY_OCTET_PARAM(params, OSSL_PKEY_PARAM_EC_GENERATOR, gctx->gen,
1120 COPY_OCTET_PARAM(params, OSSL_PKEY_PARAM_DHKEM_IKM, gctx->dhkem_ikm,
1121 gctx->dhkem_ikmlen);
1125 EC_GROUP_free(group);
1129 static int ec_gen_set_group_from_params(struct ec_gen_ctx *gctx)
1132 OSSL_PARAM_BLD *bld;
1133 OSSL_PARAM *params = NULL;
1134 EC_GROUP *group = NULL;
1136 bld = OSSL_PARAM_BLD_new();
1140 if (gctx->encoding != NULL
1141 && !OSSL_PARAM_BLD_push_utf8_string(bld, OSSL_PKEY_PARAM_EC_ENCODING,
1145 if (gctx->pt_format != NULL
1146 && !OSSL_PARAM_BLD_push_utf8_string(bld,
1147 OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT,
1148 gctx->pt_format, 0))
1151 if (gctx->group_name != NULL) {
1152 if (!OSSL_PARAM_BLD_push_utf8_string(bld, OSSL_PKEY_PARAM_GROUP_NAME,
1153 gctx->group_name, 0))
1155 /* Ignore any other parameters if there is a group name */
1157 } else if (gctx->field_type != NULL) {
1158 if (!OSSL_PARAM_BLD_push_utf8_string(bld, OSSL_PKEY_PARAM_EC_FIELD_TYPE,
1159 gctx->field_type, 0))
1167 || gctx->order == NULL
1168 || !OSSL_PARAM_BLD_push_BN(bld, OSSL_PKEY_PARAM_EC_P, gctx->p)
1169 || !OSSL_PARAM_BLD_push_BN(bld, OSSL_PKEY_PARAM_EC_A, gctx->a)
1170 || !OSSL_PARAM_BLD_push_BN(bld, OSSL_PKEY_PARAM_EC_B, gctx->b)
1171 || !OSSL_PARAM_BLD_push_BN(bld, OSSL_PKEY_PARAM_EC_ORDER, gctx->order))
1174 if (gctx->cofactor != NULL
1175 && !OSSL_PARAM_BLD_push_BN(bld, OSSL_PKEY_PARAM_EC_COFACTOR,
1179 if (gctx->seed != NULL
1180 && !OSSL_PARAM_BLD_push_octet_string(bld, OSSL_PKEY_PARAM_EC_SEED,
1181 gctx->seed, gctx->seed_len))
1184 if (gctx->gen == NULL
1185 || !OSSL_PARAM_BLD_push_octet_string(bld, OSSL_PKEY_PARAM_EC_GENERATOR,
1186 gctx->gen, gctx->gen_len))
1189 params = OSSL_PARAM_BLD_to_param(bld);
1192 group = EC_GROUP_new_from_params(params, gctx->libctx, NULL);
1196 EC_GROUP_free(gctx->gen_group);
1197 gctx->gen_group = group;
1201 OSSL_PARAM_free(params);
1202 OSSL_PARAM_BLD_free(bld);
1206 static const OSSL_PARAM *ec_gen_settable_params(ossl_unused void *genctx,
1207 ossl_unused void *provctx)
1209 static OSSL_PARAM settable[] = {
1210 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_GROUP_NAME, NULL, 0),
1211 OSSL_PARAM_int(OSSL_PKEY_PARAM_USE_COFACTOR_ECDH, NULL),
1212 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_ENCODING, NULL, 0),
1213 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT, NULL, 0),
1214 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_FIELD_TYPE, NULL, 0),
1215 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_P, NULL, 0),
1216 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_A, NULL, 0),
1217 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_B, NULL, 0),
1218 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_GENERATOR, NULL, 0),
1219 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_ORDER, NULL, 0),
1220 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_COFACTOR, NULL, 0),
1221 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_SEED, NULL, 0),
1222 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_DHKEM_IKM, NULL, 0),
1229 static int ec_gen_assign_group(EC_KEY *ec, EC_GROUP *group)
1231 if (group == NULL) {
1232 ERR_raise(ERR_LIB_PROV, PROV_R_NO_PARAMETERS_SET);
1235 return EC_KEY_set_group(ec, group) > 0;
1239 * The callback arguments (osslcb & cbarg) are not used by EC_KEY generation
1241 static void *ec_gen(void *genctx, OSSL_CALLBACK *osslcb, void *cbarg)
1243 struct ec_gen_ctx *gctx = genctx;
1247 if (!ossl_prov_is_running()
1249 || (ec = EC_KEY_new_ex(gctx->libctx, NULL)) == NULL)
1252 if (gctx->gen_group == NULL) {
1253 if (!ec_gen_set_group_from_params(gctx))
1256 if (gctx->encoding != NULL) {
1257 int flags = ossl_ec_encoding_name2id(gctx->encoding);
1261 EC_GROUP_set_asn1_flag(gctx->gen_group, flags);
1263 if (gctx->pt_format != NULL) {
1264 int format = ossl_ec_pt_format_name2id(gctx->pt_format);
1268 EC_GROUP_set_point_conversion_form(gctx->gen_group, format);
1272 /* We must always assign a group, no matter what */
1273 ret = ec_gen_assign_group(ec, gctx->gen_group);
1275 /* Whether you want it or not, you get a keypair, not just one half */
1276 if ((gctx->selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0) {
1278 if (gctx->dhkem_ikm != NULL && gctx->dhkem_ikmlen != 0)
1279 ret = ret && ossl_ec_generate_key_dhkem(ec, gctx->dhkem_ikm,
1280 gctx->dhkem_ikmlen);
1283 ret = ret && EC_KEY_generate_key(ec);
1286 if (gctx->ecdh_mode != -1)
1287 ret = ret && ossl_ec_set_ecdh_cofactor_mode(ec, gctx->ecdh_mode);
1289 if (gctx->group_check != NULL)
1290 ret = ret && ossl_ec_set_check_group_type_from_name(ec,
1295 /* Something went wrong, throw the key away */
1301 # ifndef OPENSSL_NO_SM2
1303 * The callback arguments (osslcb & cbarg) are not used by EC_KEY generation
1305 static void *sm2_gen(void *genctx, OSSL_CALLBACK *osslcb, void *cbarg)
1307 struct ec_gen_ctx *gctx = genctx;
1312 || (ec = EC_KEY_new_ex(gctx->libctx, NULL)) == NULL)
1315 if (gctx->gen_group == NULL) {
1316 if (!ec_gen_set_group_from_params(gctx))
1319 if (gctx->encoding) {
1320 int flags = ossl_ec_encoding_name2id(gctx->encoding);
1324 EC_GROUP_set_asn1_flag(gctx->gen_group, flags);
1326 if (gctx->pt_format != NULL) {
1327 int format = ossl_ec_pt_format_name2id(gctx->pt_format);
1331 EC_GROUP_set_point_conversion_form(gctx->gen_group, format);
1335 /* We must always assign a group, no matter what */
1336 ret = ec_gen_assign_group(ec, gctx->gen_group);
1338 /* Whether you want it or not, you get a keypair, not just one half */
1339 if ((gctx->selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0)
1340 ret = ret && EC_KEY_generate_key(ec);
1345 /* Something went wrong, throw the key away */
1352 static void ec_gen_cleanup(void *genctx)
1354 struct ec_gen_ctx *gctx = genctx;
1359 OPENSSL_clear_free(gctx->dhkem_ikm, gctx->dhkem_ikmlen);
1360 EC_GROUP_free(gctx->gen_group);
1364 BN_free(gctx->order);
1365 BN_free(gctx->cofactor);
1366 OPENSSL_free(gctx->group_name);
1367 OPENSSL_free(gctx->field_type);
1368 OPENSSL_free(gctx->pt_format);
1369 OPENSSL_free(gctx->encoding);
1370 OPENSSL_free(gctx->seed);
1371 OPENSSL_free(gctx->gen);
1375 static void *common_load(const void *reference, size_t reference_sz,
1380 if (ossl_prov_is_running() && reference_sz == sizeof(ec)) {
1381 /* The contents of the reference is the address to our object */
1382 ec = *(EC_KEY **)reference;
1384 if (!common_check_sm2(ec, sm2_wanted))
1387 /* We grabbed, so we detach it */
1388 *(EC_KEY **)reference = NULL;
1394 static void *ec_load(const void *reference, size_t reference_sz)
1396 return common_load(reference, reference_sz, 0);
1400 # ifndef OPENSSL_NO_SM2
1401 static void *sm2_load(const void *reference, size_t reference_sz)
1403 return common_load(reference, reference_sz, 1);
1408 static void *ec_dup(const void *keydata_from, int selection)
1410 if (ossl_prov_is_running())
1411 return ossl_ec_key_dup(keydata_from, selection);
1415 const OSSL_DISPATCH ossl_ec_keymgmt_functions[] = {
1416 { OSSL_FUNC_KEYMGMT_NEW, (void (*)(void))ec_newdata },
1417 { OSSL_FUNC_KEYMGMT_GEN_INIT, (void (*)(void))ec_gen_init },
1418 { OSSL_FUNC_KEYMGMT_GEN_SET_TEMPLATE,
1419 (void (*)(void))ec_gen_set_template },
1420 { OSSL_FUNC_KEYMGMT_GEN_SET_PARAMS, (void (*)(void))ec_gen_set_params },
1421 { OSSL_FUNC_KEYMGMT_GEN_SETTABLE_PARAMS,
1422 (void (*)(void))ec_gen_settable_params },
1423 { OSSL_FUNC_KEYMGMT_GEN, (void (*)(void))ec_gen },
1424 { OSSL_FUNC_KEYMGMT_GEN_CLEANUP, (void (*)(void))ec_gen_cleanup },
1425 { OSSL_FUNC_KEYMGMT_LOAD, (void (*)(void))ec_load },
1426 { OSSL_FUNC_KEYMGMT_FREE, (void (*)(void))ec_freedata },
1427 { OSSL_FUNC_KEYMGMT_GET_PARAMS, (void (*) (void))ec_get_params },
1428 { OSSL_FUNC_KEYMGMT_GETTABLE_PARAMS, (void (*) (void))ec_gettable_params },
1429 { OSSL_FUNC_KEYMGMT_SET_PARAMS, (void (*) (void))ec_set_params },
1430 { OSSL_FUNC_KEYMGMT_SETTABLE_PARAMS, (void (*) (void))ec_settable_params },
1431 { OSSL_FUNC_KEYMGMT_HAS, (void (*)(void))ec_has },
1432 { OSSL_FUNC_KEYMGMT_MATCH, (void (*)(void))ec_match },
1433 { OSSL_FUNC_KEYMGMT_VALIDATE, (void (*)(void))ec_validate },
1434 { OSSL_FUNC_KEYMGMT_IMPORT, (void (*)(void))ec_import },
1435 { OSSL_FUNC_KEYMGMT_IMPORT_TYPES, (void (*)(void))ec_import_types },
1436 { OSSL_FUNC_KEYMGMT_EXPORT, (void (*)(void))ec_export },
1437 { OSSL_FUNC_KEYMGMT_EXPORT_TYPES, (void (*)(void))ec_export_types },
1438 { OSSL_FUNC_KEYMGMT_QUERY_OPERATION_NAME,
1439 (void (*)(void))ec_query_operation_name },
1440 { OSSL_FUNC_KEYMGMT_DUP, (void (*)(void))ec_dup },
1445 # ifndef OPENSSL_NO_SM2
1446 const OSSL_DISPATCH ossl_sm2_keymgmt_functions[] = {
1447 { OSSL_FUNC_KEYMGMT_NEW, (void (*)(void))sm2_newdata },
1448 { OSSL_FUNC_KEYMGMT_GEN_INIT, (void (*)(void))sm2_gen_init },
1449 { OSSL_FUNC_KEYMGMT_GEN_SET_TEMPLATE,
1450 (void (*)(void))ec_gen_set_template },
1451 { OSSL_FUNC_KEYMGMT_GEN_SET_PARAMS, (void (*)(void))ec_gen_set_params },
1452 { OSSL_FUNC_KEYMGMT_GEN_SETTABLE_PARAMS,
1453 (void (*)(void))ec_gen_settable_params },
1454 { OSSL_FUNC_KEYMGMT_GEN, (void (*)(void))sm2_gen },
1455 { OSSL_FUNC_KEYMGMT_GEN_CLEANUP, (void (*)(void))ec_gen_cleanup },
1456 { OSSL_FUNC_KEYMGMT_LOAD, (void (*)(void))sm2_load },
1457 { OSSL_FUNC_KEYMGMT_FREE, (void (*)(void))ec_freedata },
1458 { OSSL_FUNC_KEYMGMT_GET_PARAMS, (void (*) (void))sm2_get_params },
1459 { OSSL_FUNC_KEYMGMT_GETTABLE_PARAMS, (void (*) (void))sm2_gettable_params },
1460 { OSSL_FUNC_KEYMGMT_SET_PARAMS, (void (*) (void))ec_set_params },
1461 { OSSL_FUNC_KEYMGMT_SETTABLE_PARAMS, (void (*) (void))sm2_settable_params },
1462 { OSSL_FUNC_KEYMGMT_HAS, (void (*)(void))ec_has },
1463 { OSSL_FUNC_KEYMGMT_MATCH, (void (*)(void))ec_match },
1464 { OSSL_FUNC_KEYMGMT_VALIDATE, (void (*)(void))sm2_validate },
1465 { OSSL_FUNC_KEYMGMT_IMPORT, (void (*)(void))sm2_import },
1466 { OSSL_FUNC_KEYMGMT_IMPORT_TYPES, (void (*)(void))ec_import_types },
1467 { OSSL_FUNC_KEYMGMT_EXPORT, (void (*)(void))ec_export },
1468 { OSSL_FUNC_KEYMGMT_EXPORT_TYPES, (void (*)(void))ec_export_types },
1469 { OSSL_FUNC_KEYMGMT_QUERY_OPERATION_NAME,
1470 (void (*)(void))sm2_query_operation_name },
1471 { OSSL_FUNC_KEYMGMT_DUP, (void (*)(void))ec_dup },