2 * Copyright 2020 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"
16 #include "e_os.h" /* strcasecmp */
18 #include <openssl/core_dispatch.h>
19 #include <openssl/core_names.h>
20 #include <openssl/bn.h>
21 #include <openssl/err.h>
22 #include <openssl/objects.h>
23 #include "crypto/bn.h"
24 #include "crypto/ec.h"
25 #include "prov/implementations.h"
26 #include "prov/providercommon.h"
27 #include "prov/providercommonerr.h"
28 #include "prov/provider_ctx.h"
29 #include "internal/param_build_set.h"
32 # ifndef OPENSSL_NO_SM2
33 # include "crypto/sm2.h"
37 static OSSL_FUNC_keymgmt_new_fn ec_newdata;
38 static OSSL_FUNC_keymgmt_gen_init_fn ec_gen_init;
39 static OSSL_FUNC_keymgmt_gen_set_template_fn ec_gen_set_template;
40 static OSSL_FUNC_keymgmt_gen_set_params_fn ec_gen_set_params;
41 static OSSL_FUNC_keymgmt_gen_settable_params_fn ec_gen_settable_params;
42 static OSSL_FUNC_keymgmt_gen_fn ec_gen;
43 static OSSL_FUNC_keymgmt_gen_cleanup_fn ec_gen_cleanup;
44 static OSSL_FUNC_keymgmt_load_fn ec_load;
45 static OSSL_FUNC_keymgmt_free_fn ec_freedata;
46 static OSSL_FUNC_keymgmt_get_params_fn ec_get_params;
47 static OSSL_FUNC_keymgmt_gettable_params_fn ec_gettable_params;
48 static OSSL_FUNC_keymgmt_set_params_fn ec_set_params;
49 static OSSL_FUNC_keymgmt_settable_params_fn ec_settable_params;
50 static OSSL_FUNC_keymgmt_has_fn ec_has;
51 static OSSL_FUNC_keymgmt_match_fn ec_match;
52 static OSSL_FUNC_keymgmt_validate_fn ec_validate;
53 static OSSL_FUNC_keymgmt_import_fn ec_import;
54 static OSSL_FUNC_keymgmt_import_types_fn ec_import_types;
55 static OSSL_FUNC_keymgmt_export_fn ec_export;
56 static OSSL_FUNC_keymgmt_export_types_fn ec_export_types;
57 static OSSL_FUNC_keymgmt_query_operation_name_fn ec_query_operation_name;
59 # ifndef OPENSSL_NO_SM2
60 static OSSL_FUNC_keymgmt_gen_fn sm2_gen;
61 static OSSL_FUNC_keymgmt_get_params_fn sm2_get_params;
62 static OSSL_FUNC_keymgmt_gettable_params_fn sm2_gettable_params;
63 static OSSL_FUNC_keymgmt_settable_params_fn sm2_settable_params;
64 static OSSL_FUNC_keymgmt_import_fn sm2_import;
65 static OSSL_FUNC_keymgmt_query_operation_name_fn sm2_query_operation_name;
66 static OSSL_FUNC_keymgmt_validate_fn sm2_validate;
70 #define EC_DEFAULT_MD "SHA256"
71 #define EC_POSSIBLE_SELECTIONS \
72 (OSSL_KEYMGMT_SELECT_KEYPAIR | OSSL_KEYMGMT_SELECT_ALL_PARAMETERS)
73 #define SM2_DEFAULT_MD "SM3"
76 const char *ec_query_operation_name(int operation_id)
78 switch (operation_id) {
81 case OSSL_OP_SIGNATURE:
88 # ifndef OPENSSL_NO_SM2
90 const char *sm2_query_operation_name(int operation_id)
92 switch (operation_id) {
93 case OSSL_OP_SIGNATURE:
102 * Callers of key_to_params MUST make sure that domparams_to_params is also
105 * This function only exports the bare keypair, domain parameters and other
106 * parameters are exported separately.
109 int key_to_params(const EC_KEY *eckey, OSSL_PARAM_BLD *tmpl,
110 OSSL_PARAM params[], int include_private,
111 unsigned char **pub_key)
113 BIGNUM *x = NULL, *y = NULL;
114 const BIGNUM *priv_key = NULL;
115 const EC_POINT *pub_point = NULL;
116 const EC_GROUP *ecg = NULL;
117 size_t pub_key_len = 0;
119 BN_CTX *bnctx = NULL;
122 || (ecg = EC_KEY_get0_group(eckey)) == NULL)
125 priv_key = EC_KEY_get0_private_key(eckey);
126 pub_point = EC_KEY_get0_public_key(eckey);
128 if (pub_point != NULL) {
129 OSSL_PARAM *p = NULL, *px = NULL, *py = NULL;
131 * EC_POINT_point2buf() can generate random numbers in some
132 * implementations so we need to ensure we use the correct libctx.
134 bnctx = BN_CTX_new_ex(ec_key_get_libctx(eckey));
139 /* If we are doing a get then check first before decoding the point */
141 p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_PUB_KEY);
142 px = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_EC_PUB_X);
143 py = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_EC_PUB_Y);
146 if (p != NULL || tmpl != NULL) {
147 /* convert pub_point to a octet string according to the SECG standard */
148 if ((pub_key_len = EC_POINT_point2buf(ecg, pub_point,
149 POINT_CONVERSION_COMPRESSED,
150 pub_key, bnctx)) == 0
151 || !ossl_param_build_set_octet_string(tmpl, p,
152 OSSL_PKEY_PARAM_PUB_KEY,
153 *pub_key, pub_key_len))
156 if (px != NULL || py != NULL) {
158 x = BN_CTX_get(bnctx);
160 y = BN_CTX_get(bnctx);
162 if (!EC_POINT_get_affine_coordinates(ecg, pub_point, x, y, bnctx))
165 && !ossl_param_build_set_bn(tmpl, px,
166 OSSL_PKEY_PARAM_EC_PUB_X, x))
169 && !ossl_param_build_set_bn(tmpl, py,
170 OSSL_PKEY_PARAM_EC_PUB_Y, y))
175 if (priv_key != NULL && include_private) {
180 * Key import/export should never leak the bit length of the secret
183 * For this reason, on export we use padded BIGNUMs with fixed length.
185 * When importing we also should make sure that, even if short lived,
186 * the newly created BIGNUM is marked with the BN_FLG_CONSTTIME flag as
187 * soon as possible, so that any processing of this BIGNUM might opt for
188 * constant time implementations in the backend.
190 * Setting the BN_FLG_CONSTTIME flag alone is never enough, we also have
191 * to preallocate the BIGNUM internal buffer to a fixed public size big
192 * enough that operations performed during the processing never trigger
193 * a realloc which would leak the size of the scalar through memory
199 * The order of the large prime subgroup of the curve is our choice for
200 * a fixed public size, as that is generally the upper bound for
201 * generating a private key in EC cryptosystems and should fit all valid
204 * For padding on export we just use the bit length of the order
205 * converted to bytes (rounding up).
207 * For preallocating the BIGNUM storage we look at the number of "words"
208 * required for the internal representation of the order, and we
209 * preallocate 2 extra "words" in case any of the subsequent processing
210 * might temporarily overflow the order length.
212 ecbits = EC_GROUP_order_bits(ecg);
215 sz = (ecbits + 7 ) / 8;
217 if (!ossl_param_build_set_bn_pad(tmpl, params,
218 OSSL_PKEY_PARAM_PRIV_KEY,
229 int otherparams_to_params(const EC_KEY *ec, OSSL_PARAM_BLD *tmpl,
232 int ecdh_cofactor_mode = 0, group_check = 0;
233 const char *name = NULL;
234 point_conversion_form_t format;
239 format = EC_KEY_get_conv_form(ec);
240 name = ec_pt_format_id2name((int)format);
242 && !ossl_param_build_set_utf8_string(tmpl, params,
243 OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT,
247 group_check = EC_KEY_get_flags(ec) & EC_FLAG_CHECK_NAMED_GROUP_MASK;
248 name = ec_check_group_type_id2name(group_check);
250 && !ossl_param_build_set_utf8_string(tmpl, params,
251 OSSL_PKEY_PARAM_EC_GROUP_CHECK_TYPE,
255 if ((EC_KEY_get_enc_flags(ec) & EC_PKEY_NO_PUBKEY) != 0)
256 ossl_param_build_set_int(tmpl, params,
257 OSSL_PKEY_PARAM_EC_INCLUDE_PUBLIC, 0);
260 (EC_KEY_get_flags(ec) & EC_FLAG_COFACTOR_ECDH) ? 1 : 0;
261 return ossl_param_build_set_int(tmpl, params,
262 OSSL_PKEY_PARAM_USE_COFACTOR_ECDH,
267 void *ec_newdata(void *provctx)
269 if (!ossl_prov_is_running())
271 return EC_KEY_new_ex(PROV_LIBCTX_OF(provctx), NULL);
275 void ec_freedata(void *keydata)
277 EC_KEY_free(keydata);
281 int ec_has(const void *keydata, int selection)
283 const EC_KEY *ec = keydata;
286 if (ossl_prov_is_running() && ec != NULL) {
287 if ((selection & EC_POSSIBLE_SELECTIONS) != 0)
290 if ((selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0)
291 ok = ok && (EC_KEY_get0_public_key(ec) != NULL);
292 if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0)
293 ok = ok && (EC_KEY_get0_private_key(ec) != NULL);
294 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0)
295 ok = ok && (EC_KEY_get0_group(ec) != NULL);
297 * We consider OSSL_KEYMGMT_SELECT_OTHER_PARAMETERS to always be
298 * available, so no extra check is needed other than the previous one
299 * against EC_POSSIBLE_SELECTIONS.
305 static int ec_match(const void *keydata1, const void *keydata2, int selection)
307 const EC_KEY *ec1 = keydata1;
308 const EC_KEY *ec2 = keydata2;
309 const EC_GROUP *group_a = EC_KEY_get0_group(ec1);
310 const EC_GROUP *group_b = EC_KEY_get0_group(ec2);
314 if (!ossl_prov_is_running())
317 ctx = BN_CTX_new_ex(ec_key_get_libctx(ec1));
321 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0)
322 ok = ok && group_a != NULL && group_b != NULL
323 && EC_GROUP_cmp(group_a, group_b, ctx) == 0;
324 if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0) {
325 const BIGNUM *pa = EC_KEY_get0_private_key(ec1);
326 const BIGNUM *pb = EC_KEY_get0_private_key(ec2);
328 ok = ok && BN_cmp(pa, pb) == 0;
330 if ((selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0) {
331 const EC_POINT *pa = EC_KEY_get0_public_key(ec1);
332 const EC_POINT *pb = EC_KEY_get0_public_key(ec2);
334 ok = ok && EC_POINT_cmp(group_b, pa, pb, ctx) == 0;
341 int common_import(void *keydata, int selection, const OSSL_PARAM params[],
344 EC_KEY *ec = keydata;
345 const EC_GROUP *ecg = NULL;
348 if (!ossl_prov_is_running() || ec == NULL)
352 * In this implementation, we can export/import only keydata in the
353 * following combinations:
354 * - domain parameters (+optional other params)
355 * - public key with associated domain parameters (+optional other params)
356 * - private key with associated public key and domain parameters
357 * (+optional other params)
360 * - domain parameters must always be requested
361 * - private key must be requested alongside public key
362 * - other parameters are always optional
364 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) == 0)
366 if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0
367 && (selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) == 0)
370 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0)
371 ok = ok && ec_group_fromdata(ec, params);
374 * sm2_curve: import the keys or domparams only on SM2 Curve
375 * !sm2_curve: import the keys or domparams only not on SM2 Curve
377 if ((ecg = EC_KEY_get0_group(ec)) == NULL
378 || (sm2_curve ^ (EC_GROUP_get_curve_name(ecg) == NID_sm2)))
381 if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0) {
382 int include_private =
383 selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY ? 1 : 0;
385 ok = ok && ec_key_fromdata(ec, params, include_private);
387 if ((selection & OSSL_KEYMGMT_SELECT_OTHER_PARAMETERS) != 0)
388 ok = ok && ec_key_otherparams_fromdata(ec, params);
394 int ec_import(void *keydata, int selection, const OSSL_PARAM params[])
396 return common_import(keydata, selection, params, 0);
400 # ifndef OPENSSL_NO_SM2
402 int sm2_import(void *keydata, int selection, const OSSL_PARAM params[])
404 return common_import(keydata, selection, params, 1);
410 int ec_export(void *keydata, int selection, OSSL_CALLBACK *param_cb,
413 EC_KEY *ec = keydata;
414 OSSL_PARAM_BLD *tmpl = NULL;
415 OSSL_PARAM *params = NULL;
416 unsigned char *pub_key = NULL, *genbuf = NULL;
417 BN_CTX *bnctx = NULL;
420 if (!ossl_prov_is_running() || ec == NULL)
424 * In this implementation, we can export/import only keydata in the
425 * following combinations:
426 * - domain parameters (+optional other params)
427 * - public key with associated domain parameters (+optional other params)
428 * - private key with associated public key and domain parameters
429 * (+optional other params)
432 * - domain parameters must always be requested
433 * - private key must be requested alongside public key
434 * - other parameters are always optional
436 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) == 0)
438 if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0
439 && (selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) == 0)
441 if ((selection & OSSL_KEYMGMT_SELECT_OTHER_PARAMETERS) != 0
442 && (selection & OSSL_KEYMGMT_SELECT_KEYPAIR) == 0)
445 tmpl = OSSL_PARAM_BLD_new();
449 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0) {
450 bnctx = BN_CTX_new_ex(ec_key_get_libctx(ec));
456 ok = ok && ec_group_todata(EC_KEY_get0_group(ec), tmpl, NULL,
457 ec_key_get_libctx(ec), ec_key_get0_propq(ec),
461 if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0) {
462 int include_private =
463 selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY ? 1 : 0;
465 ok = ok && key_to_params(ec, tmpl, NULL, include_private, &pub_key);
467 if ((selection & OSSL_KEYMGMT_SELECT_OTHER_PARAMETERS) != 0)
468 ok = ok && otherparams_to_params(ec, tmpl, NULL);
470 if (ok && (params = OSSL_PARAM_BLD_to_param(tmpl)) != NULL)
471 ok = param_cb(params, cbarg);
473 OSSL_PARAM_BLD_free_params(params);
474 OSSL_PARAM_BLD_free(tmpl);
475 OPENSSL_free(pub_key);
476 OPENSSL_free(genbuf);
482 /* IMEXPORT = IMPORT + EXPORT */
484 # define EC_IMEXPORTABLE_DOM_PARAMETERS \
485 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_GROUP_NAME, NULL, 0), \
486 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_ENCODING, NULL, 0), \
487 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT, NULL, 0),\
488 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_FIELD_TYPE, NULL, 0), \
489 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_P, NULL, 0), \
490 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_A, NULL, 0), \
491 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_B, NULL, 0), \
492 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_GENERATOR, NULL, 0), \
493 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_ORDER, NULL, 0), \
494 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_COFACTOR, NULL, 0), \
495 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_SEED, NULL, 0)
497 # define EC_IMEXPORTABLE_PUBLIC_KEY \
498 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_PUB_KEY, NULL, 0)
499 # define EC_IMEXPORTABLE_PRIVATE_KEY \
500 OSSL_PARAM_BN(OSSL_PKEY_PARAM_PRIV_KEY, NULL, 0)
501 # define EC_IMEXPORTABLE_OTHER_PARAMETERS \
502 OSSL_PARAM_int(OSSL_PKEY_PARAM_USE_COFACTOR_ECDH, NULL), \
503 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_INCLUDE_PUBLIC, NULL)
506 * Include all the possible combinations of OSSL_PARAM arrays for
507 * ec_imexport_types().
509 * They are in a separate file as it is ~100 lines of unreadable and
510 * uninteresting machine generated stuff.
512 #include "ec_kmgmt_imexport.inc"
515 const OSSL_PARAM *ec_imexport_types(int selection)
519 if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0)
521 if ((selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0)
523 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0)
525 if ((selection & OSSL_KEYMGMT_SELECT_OTHER_PARAMETERS) != 0)
527 return ec_types[type_select];
531 const OSSL_PARAM *ec_import_types(int selection)
533 return ec_imexport_types(selection);
537 const OSSL_PARAM *ec_export_types(int selection)
539 return ec_imexport_types(selection);
542 static int ec_get_ecm_params(const EC_GROUP *group, OSSL_PARAM params[])
544 #ifdef OPENSSL_NO_EC2M
548 unsigned int k1 = 0, k2 = 0, k3 = 0;
550 const char *basis_name = NULL;
551 int fid = EC_GROUP_get_field_type(group);
553 if (fid != NID_X9_62_characteristic_two_field)
556 basis_nid = EC_GROUP_get_basis_type(group);
557 if (basis_nid == NID_X9_62_tpBasis)
558 basis_name = SN_X9_62_tpBasis;
559 else if (basis_nid == NID_X9_62_ppBasis)
560 basis_name = SN_X9_62_ppBasis;
564 m = EC_GROUP_get_degree(group);
565 if (!ossl_param_build_set_int(NULL, params, OSSL_PKEY_PARAM_EC_CHAR2_M, m)
566 || !ossl_param_build_set_utf8_string(NULL, params,
567 OSSL_PKEY_PARAM_EC_CHAR2_TYPE,
571 if (basis_nid == NID_X9_62_tpBasis) {
572 if (!EC_GROUP_get_trinomial_basis(group, &k1)
573 || !ossl_param_build_set_int(NULL, params,
574 OSSL_PKEY_PARAM_EC_CHAR2_TP_BASIS,
578 if (!EC_GROUP_get_pentanomial_basis(group, &k1, &k2, &k3)
579 || !ossl_param_build_set_int(NULL, params,
580 OSSL_PKEY_PARAM_EC_CHAR2_PP_K1, (int)k1)
581 || !ossl_param_build_set_int(NULL, params,
582 OSSL_PKEY_PARAM_EC_CHAR2_PP_K2, (int)k2)
583 || !ossl_param_build_set_int(NULL, params,
584 OSSL_PKEY_PARAM_EC_CHAR2_PP_K3, (int)k3))
590 #endif /* OPENSSL_NO_EC2M */
594 int common_get_params(void *key, OSSL_PARAM params[], int sm2)
598 const EC_GROUP *ecg = NULL;
600 unsigned char *pub_key = NULL, *genbuf = NULL;
601 OSSL_LIB_CTX *libctx;
603 BN_CTX *bnctx = NULL;
605 ecg = EC_KEY_get0_group(eck);
609 libctx = ec_key_get_libctx(eck);
610 propq = ec_key_get0_propq(eck);
612 bnctx = BN_CTX_new_ex(libctx);
617 if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_MAX_SIZE)) != NULL
618 && !OSSL_PARAM_set_int(p, ECDSA_size(eck)))
620 if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_BITS)) != NULL
621 && !OSSL_PARAM_set_int(p, EC_GROUP_order_bits(ecg)))
623 if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_SECURITY_BITS)) != NULL) {
624 int ecbits, sec_bits;
626 ecbits = EC_GROUP_order_bits(ecg);
629 * The following estimates are based on the values published
630 * in Table 2 of "NIST Special Publication 800-57 Part 1 Revision 4"
631 * at http://dx.doi.org/10.6028/NIST.SP.800-57pt1r4 .
633 * Note that the above reference explicitly categorizes algorithms in a
634 * discrete set of values {80, 112, 128, 192, 256}, and that it is
635 * relevant only for NIST approved Elliptic Curves, while OpenSSL
636 * applies the same logic also to other curves.
638 * Classifications produced by other standardazing bodies might differ,
639 * so the results provided for "bits of security" by this provider are
640 * to be considered merely indicative, and it is the users'
641 * responsibility to compare these values against the normative
642 * references that may be relevant for their intent and purposes.
646 else if (ecbits >= 384)
648 else if (ecbits >= 256)
650 else if (ecbits >= 224)
652 else if (ecbits >= 160)
655 sec_bits = ecbits / 2;
657 if (!OSSL_PARAM_set_int(p, sec_bits))
662 if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_DEFAULT_DIGEST)) != NULL
663 && !OSSL_PARAM_set_utf8_string(p, EC_DEFAULT_MD))
666 if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_DEFAULT_DIGEST)) != NULL
667 && !OSSL_PARAM_set_utf8_string(p, SM2_DEFAULT_MD))
671 /* SM2 doesn't support this PARAM */
673 p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_USE_COFACTOR_ECDH);
675 int ecdh_cofactor_mode = 0;
678 (EC_KEY_get_flags(eck) & EC_FLAG_COFACTOR_ECDH) ? 1 : 0;
680 if (!OSSL_PARAM_set_int(p, ecdh_cofactor_mode))
684 if ((p = OSSL_PARAM_locate(params,
685 OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY)) != NULL) {
686 p->return_size = EC_POINT_point2oct(EC_KEY_get0_group(key),
687 EC_KEY_get0_public_key(key),
688 POINT_CONVERSION_UNCOMPRESSED,
689 p->data, p->return_size, bnctx);
690 if (p->return_size == 0)
694 ret = ec_get_ecm_params(ecg, params)
695 && ec_group_todata(ecg, NULL, params, libctx, propq, bnctx, &genbuf)
696 && key_to_params(eck, NULL, params, 1, &pub_key)
697 && otherparams_to_params(eck, NULL, params);
699 OPENSSL_free(genbuf);
700 OPENSSL_free(pub_key);
707 int ec_get_params(void *key, OSSL_PARAM params[])
709 return common_get_params(key, params, 0);
712 #ifndef OPENSSL_NO_EC2M
713 # define EC2M_GETTABLE_DOM_PARAMS \
714 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_CHAR2_M, NULL), \
715 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_CHAR2_TYPE, NULL, 0), \
716 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_CHAR2_TP_BASIS, NULL), \
717 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_CHAR2_PP_K1, NULL), \
718 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_CHAR2_PP_K2, NULL), \
719 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_CHAR2_PP_K3, NULL),
721 # define EC2M_GETTABLE_DOM_PARAMS
724 static const OSSL_PARAM ec_known_gettable_params[] = {
725 OSSL_PARAM_int(OSSL_PKEY_PARAM_BITS, NULL),
726 OSSL_PARAM_int(OSSL_PKEY_PARAM_SECURITY_BITS, NULL),
727 OSSL_PARAM_int(OSSL_PKEY_PARAM_MAX_SIZE, NULL),
728 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_DEFAULT_DIGEST, NULL, 0),
729 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY, NULL, 0),
730 EC_IMEXPORTABLE_DOM_PARAMETERS,
731 EC2M_GETTABLE_DOM_PARAMS
732 EC_IMEXPORTABLE_PUBLIC_KEY,
733 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_PUB_X, NULL, 0),
734 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_PUB_Y, NULL, 0),
735 EC_IMEXPORTABLE_PRIVATE_KEY,
736 EC_IMEXPORTABLE_OTHER_PARAMETERS,
741 const OSSL_PARAM *ec_gettable_params(void *provctx)
743 return ec_known_gettable_params;
746 static const OSSL_PARAM ec_known_settable_params[] = {
747 OSSL_PARAM_int(OSSL_PKEY_PARAM_USE_COFACTOR_ECDH, NULL),
748 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY, NULL, 0),
749 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_ENCODING, NULL, 0),
750 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT, NULL, 0),
751 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_SEED, NULL, 0),
752 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_INCLUDE_PUBLIC, NULL),
753 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_GROUP_CHECK_TYPE, NULL, 0),
758 const OSSL_PARAM *ec_settable_params(void *provctx)
760 return ec_known_settable_params;
764 int ec_set_params(void *key, const OSSL_PARAM params[])
772 if (!ec_group_set_params((EC_GROUP *)EC_KEY_get0_group(key), params))
775 p = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY);
777 BN_CTX *ctx = BN_CTX_new_ex(ec_key_get_libctx(key));
781 || p->data_type != OSSL_PARAM_OCTET_STRING
782 || !EC_KEY_oct2key(key, p->data, p->data_size, ctx))
789 return ec_key_otherparams_fromdata(eck, params);
793 # ifndef OPENSSL_NO_SM2
795 int sm2_get_params(void *key, OSSL_PARAM params[])
797 return common_get_params(key, params, 1);
800 static const OSSL_PARAM sm2_known_gettable_params[] = {
801 OSSL_PARAM_int(OSSL_PKEY_PARAM_BITS, NULL),
802 OSSL_PARAM_int(OSSL_PKEY_PARAM_SECURITY_BITS, NULL),
803 OSSL_PARAM_int(OSSL_PKEY_PARAM_MAX_SIZE, NULL),
804 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_DEFAULT_DIGEST, NULL, 0),
805 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY, NULL, 0),
806 EC_IMEXPORTABLE_DOM_PARAMETERS,
807 EC_IMEXPORTABLE_PUBLIC_KEY,
808 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_PUB_X, NULL, 0),
809 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_PUB_Y, NULL, 0),
810 EC_IMEXPORTABLE_PRIVATE_KEY,
815 const OSSL_PARAM *sm2_gettable_params(ossl_unused void *provctx)
817 return sm2_known_gettable_params;
820 static const OSSL_PARAM sm2_known_settable_params[] = {
821 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY, NULL, 0),
826 const OSSL_PARAM *sm2_settable_params(ossl_unused void *provctx)
828 return sm2_known_settable_params;
832 int sm2_validate(const void *keydata, int selection)
834 const EC_KEY *eck = keydata;
838 if (!ossl_prov_is_running())
841 ctx = BN_CTX_new_ex(ec_key_get_libctx(eck));
845 if ((selection & EC_POSSIBLE_SELECTIONS) != 0)
848 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0)
849 ok = ok && EC_GROUP_check(EC_KEY_get0_group(eck), ctx);
851 if ((selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0)
852 ok = ok && ec_key_public_check(eck, ctx);
854 if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0)
855 ok = ok && sm2_key_private_check(eck);
857 if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) == OSSL_KEYMGMT_SELECT_KEYPAIR)
858 ok = ok && ec_key_pairwise_check(eck, ctx);
867 int ec_validate(const void *keydata, int selection)
869 const EC_KEY *eck = keydata;
873 if (!ossl_prov_is_running())
876 ctx = BN_CTX_new_ex(ec_key_get_libctx(eck));
880 if ((selection & EC_POSSIBLE_SELECTIONS) != 0)
883 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0) {
884 int flags = EC_KEY_get_flags(eck);
886 if ((flags & EC_FLAG_CHECK_NAMED_GROUP) != 0)
887 ok = ok && EC_GROUP_check_named_curve(EC_KEY_get0_group(eck),
888 (flags & EC_FLAG_CHECK_NAMED_GROUP_NIST) != 0, ctx);
890 ok = ok && EC_GROUP_check(EC_KEY_get0_group(eck), ctx);
893 if ((selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0)
894 ok = ok && ec_key_public_check(eck, ctx);
896 if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0)
897 ok = ok && ec_key_private_check(eck);
899 if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) == OSSL_KEYMGMT_SELECT_KEYPAIR)
900 ok = ok && ec_key_pairwise_check(eck, ctx);
907 OSSL_LIB_CTX *libctx;
913 BIGNUM *p, *a, *b, *order, *cofactor;
914 unsigned char *gen, *seed;
915 size_t gen_len, seed_len;
921 static void *ec_gen_init(void *provctx, int selection)
923 OSSL_LIB_CTX *libctx = PROV_LIBCTX_OF(provctx);
924 struct ec_gen_ctx *gctx = NULL;
926 if (!ossl_prov_is_running() || (selection & (EC_POSSIBLE_SELECTIONS)) == 0)
929 if ((gctx = OPENSSL_zalloc(sizeof(*gctx))) != NULL) {
930 gctx->libctx = libctx;
931 gctx->selection = selection;
937 static int ec_gen_set_group(void *genctx, const EC_GROUP *src)
939 struct ec_gen_ctx *gctx = genctx;
942 group = EC_GROUP_dup(src);
944 ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_CURVE);
947 EC_GROUP_free(gctx->gen_group);
948 gctx->gen_group = group;
952 static int ec_gen_set_template(void *genctx, void *templ)
954 struct ec_gen_ctx *gctx = genctx;
956 const EC_GROUP *ec_group;
958 if (!ossl_prov_is_running() || gctx == NULL || ec == NULL)
960 if ((ec_group = EC_KEY_get0_group(ec)) == NULL)
962 return ec_gen_set_group(gctx, ec_group);
965 #define COPY_INT_PARAM(params, key, val) \
966 p = OSSL_PARAM_locate_const(params, key); \
967 if (p != NULL && !OSSL_PARAM_get_int(p, &val)) \
970 #define COPY_UTF8_PARAM(params, key, val) \
971 p = OSSL_PARAM_locate_const(params, key); \
973 if (p->data_type != OSSL_PARAM_UTF8_STRING) \
976 val = OPENSSL_strdup(p->data); \
981 #define COPY_OCTET_PARAM(params, key, val, len) \
982 p = OSSL_PARAM_locate_const(params, key); \
984 if (p->data_type != OSSL_PARAM_OCTET_STRING) \
987 len = p->data_size; \
988 val = OPENSSL_memdup(p->data, p->data_size); \
993 #define COPY_BN_PARAM(params, key, bn) \
994 p = OSSL_PARAM_locate_const(params, key); \
998 if (bn == NULL || !OSSL_PARAM_get_BN(p, &bn)) \
1002 static int ec_gen_set_params(void *genctx, const OSSL_PARAM params[])
1005 struct ec_gen_ctx *gctx = genctx;
1006 const OSSL_PARAM *p;
1007 EC_GROUP *group = NULL;
1009 COPY_INT_PARAM(params, OSSL_PKEY_PARAM_USE_COFACTOR_ECDH, gctx->ecdh_mode);
1011 COPY_UTF8_PARAM(params, OSSL_PKEY_PARAM_GROUP_NAME, gctx->group_name);
1012 COPY_UTF8_PARAM(params, OSSL_PKEY_PARAM_EC_FIELD_TYPE, gctx->field_type);
1013 COPY_UTF8_PARAM(params, OSSL_PKEY_PARAM_EC_ENCODING, gctx->encoding);
1014 COPY_UTF8_PARAM(params, OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT, gctx->pt_format);
1015 COPY_UTF8_PARAM(params, OSSL_PKEY_PARAM_EC_GROUP_CHECK_TYPE, gctx->group_check);
1017 COPY_BN_PARAM(params, OSSL_PKEY_PARAM_EC_P, gctx->p);
1018 COPY_BN_PARAM(params, OSSL_PKEY_PARAM_EC_A, gctx->a);
1019 COPY_BN_PARAM(params, OSSL_PKEY_PARAM_EC_B, gctx->b);
1020 COPY_BN_PARAM(params, OSSL_PKEY_PARAM_EC_ORDER, gctx->order);
1021 COPY_BN_PARAM(params, OSSL_PKEY_PARAM_EC_COFACTOR, gctx->cofactor);
1023 COPY_OCTET_PARAM(params, OSSL_PKEY_PARAM_EC_SEED, gctx->seed, gctx->seed_len);
1024 COPY_OCTET_PARAM(params, OSSL_PKEY_PARAM_EC_GENERATOR, gctx->gen,
1029 EC_GROUP_free(group);
1033 static int ec_gen_set_group_from_params(struct ec_gen_ctx *gctx)
1036 OSSL_PARAM_BLD *bld;
1037 OSSL_PARAM *params = NULL;
1038 EC_GROUP *group = NULL;
1040 bld = OSSL_PARAM_BLD_new();
1044 if (gctx->encoding != NULL
1045 && !OSSL_PARAM_BLD_push_utf8_string(bld, OSSL_PKEY_PARAM_EC_ENCODING,
1049 if (gctx->pt_format != NULL
1050 && !OSSL_PARAM_BLD_push_utf8_string(bld,
1051 OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT,
1052 gctx->pt_format, 0))
1055 if (gctx->group_name != NULL) {
1056 if (!OSSL_PARAM_BLD_push_utf8_string(bld, OSSL_PKEY_PARAM_GROUP_NAME,
1057 gctx->group_name, 0))
1059 /* Ignore any other parameters if there is a group name */
1061 } else if (gctx->field_type != NULL) {
1062 if (!OSSL_PARAM_BLD_push_utf8_string(bld, OSSL_PKEY_PARAM_EC_FIELD_TYPE,
1063 gctx->field_type, 0))
1071 || gctx->order == NULL
1072 || !OSSL_PARAM_BLD_push_BN(bld, OSSL_PKEY_PARAM_EC_P, gctx->p)
1073 || !OSSL_PARAM_BLD_push_BN(bld, OSSL_PKEY_PARAM_EC_A, gctx->a)
1074 || !OSSL_PARAM_BLD_push_BN(bld, OSSL_PKEY_PARAM_EC_B, gctx->b)
1075 || !OSSL_PARAM_BLD_push_BN(bld, OSSL_PKEY_PARAM_EC_ORDER, gctx->order))
1078 if (gctx->cofactor != NULL
1079 && !OSSL_PARAM_BLD_push_BN(bld, OSSL_PKEY_PARAM_EC_COFACTOR,
1083 if (gctx->seed != NULL
1084 && !OSSL_PARAM_BLD_push_octet_string(bld, OSSL_PKEY_PARAM_EC_SEED,
1085 gctx->seed, gctx->seed_len))
1088 if (gctx->gen == NULL
1089 || !OSSL_PARAM_BLD_push_octet_string(bld, OSSL_PKEY_PARAM_EC_GENERATOR,
1090 gctx->gen, gctx->gen_len))
1093 params = OSSL_PARAM_BLD_to_param(bld);
1096 group = EC_GROUP_new_from_params(params, gctx->libctx, NULL);
1100 EC_GROUP_free(gctx->gen_group);
1101 gctx->gen_group = group;
1105 OSSL_PARAM_BLD_free_params(params);
1106 OSSL_PARAM_BLD_free(bld);
1110 static const OSSL_PARAM *ec_gen_settable_params(void *provctx)
1112 static OSSL_PARAM settable[] = {
1113 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_GROUP_NAME, NULL, 0),
1114 OSSL_PARAM_int(OSSL_PKEY_PARAM_USE_COFACTOR_ECDH, NULL),
1115 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_ENCODING, NULL, 0),
1116 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT, NULL, 0),
1117 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_FIELD_TYPE, NULL, 0),
1118 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_P, NULL, 0),
1119 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_A, NULL, 0),
1120 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_B, NULL, 0),
1121 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_GENERATOR, NULL, 0),
1122 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_ORDER, NULL, 0),
1123 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_COFACTOR, NULL, 0),
1124 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_SEED, NULL, 0),
1131 static int ec_gen_assign_group(EC_KEY *ec, EC_GROUP *group)
1133 if (group == NULL) {
1134 ERR_raise(ERR_LIB_PROV, PROV_R_NO_PARAMETERS_SET);
1137 return EC_KEY_set_group(ec, group) > 0;
1141 * The callback arguments (osslcb & cbarg) are not used by EC_KEY generation
1143 static void *ec_gen(void *genctx, OSSL_CALLBACK *osslcb, void *cbarg)
1145 struct ec_gen_ctx *gctx = genctx;
1149 if (!ossl_prov_is_running()
1151 || (ec = EC_KEY_new_ex(gctx->libctx, NULL)) == NULL)
1154 if (gctx->gen_group == NULL) {
1155 if (!ec_gen_set_group_from_params(gctx))
1158 if (gctx->encoding != NULL) {
1159 int flags = ec_encoding_name2id(gctx->encoding);
1163 EC_GROUP_set_asn1_flag(gctx->gen_group, flags);
1165 if (gctx->pt_format != NULL) {
1166 int format = ec_pt_format_name2id(gctx->pt_format);
1170 EC_GROUP_set_point_conversion_form(gctx->gen_group, format);
1174 /* We must always assign a group, no matter what */
1175 ret = ec_gen_assign_group(ec, gctx->gen_group);
1177 /* Whether you want it or not, you get a keypair, not just one half */
1178 if ((gctx->selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0)
1179 ret = ret && EC_KEY_generate_key(ec);
1181 if (gctx->ecdh_mode != -1)
1182 ret = ret && ec_set_ecdh_cofactor_mode(ec, gctx->ecdh_mode);
1184 if (gctx->group_check != NULL)
1185 ret = ret && ec_set_check_group_type_from_name(ec, gctx->group_check);
1189 /* Something went wrong, throw the key away */
1195 # ifndef OPENSSL_NO_SM2
1197 * The callback arguments (osslcb & cbarg) are not used by EC_KEY generation
1199 static void *sm2_gen(void *genctx, OSSL_CALLBACK *osslcb, void *cbarg)
1201 struct ec_gen_ctx *gctx = genctx;
1206 || (ec = EC_KEY_new_ex(gctx->libctx, NULL)) == NULL)
1209 if (gctx->gen_group == NULL) {
1210 if (!ec_gen_set_group_from_params(gctx))
1213 if (gctx->encoding) {
1214 int flags = ec_encoding_name2id(gctx->encoding);
1218 EC_GROUP_set_asn1_flag(gctx->gen_group, flags);
1220 if (gctx->pt_format != NULL) {
1221 int format = ec_pt_format_name2id(gctx->pt_format);
1225 EC_GROUP_set_point_conversion_form(gctx->gen_group, format);
1229 /* We must always assign a group, no matter what */
1230 ret = ec_gen_assign_group(ec, gctx->gen_group);
1232 /* Whether you want it or not, you get a keypair, not just one half */
1233 if ((gctx->selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0) {
1235 * For SM2, we need a new flag to indicate the 'generate' function
1236 * to use a new range
1238 EC_KEY_set_flags(ec, EC_FLAG_SM2_RANGE);
1239 ret = ret && EC_KEY_generate_key(ec);
1245 /* Something went wrong, throw the key away */
1252 static void ec_gen_cleanup(void *genctx)
1254 struct ec_gen_ctx *gctx = genctx;
1259 EC_GROUP_free(gctx->gen_group);
1263 BN_free(gctx->order);
1264 BN_free(gctx->cofactor);
1265 OPENSSL_free(gctx->group_name);
1266 OPENSSL_free(gctx->field_type);
1267 OPENSSL_free(gctx->pt_format);
1268 OPENSSL_free(gctx->encoding);
1269 OPENSSL_free(gctx->seed);
1270 OPENSSL_free(gctx->gen);
1274 void *ec_load(const void *reference, size_t reference_sz)
1278 if (ossl_prov_is_running() && reference_sz == sizeof(ec)) {
1279 /* The contents of the reference is the address to our object */
1280 ec = *(EC_KEY **)reference;
1281 /* We grabbed, so we detach it */
1282 *(EC_KEY **)reference = NULL;
1288 const OSSL_DISPATCH ossl_ec_keymgmt_functions[] = {
1289 { OSSL_FUNC_KEYMGMT_NEW, (void (*)(void))ec_newdata },
1290 { OSSL_FUNC_KEYMGMT_GEN_INIT, (void (*)(void))ec_gen_init },
1291 { OSSL_FUNC_KEYMGMT_GEN_SET_TEMPLATE,
1292 (void (*)(void))ec_gen_set_template },
1293 { OSSL_FUNC_KEYMGMT_GEN_SET_PARAMS, (void (*)(void))ec_gen_set_params },
1294 { OSSL_FUNC_KEYMGMT_GEN_SETTABLE_PARAMS,
1295 (void (*)(void))ec_gen_settable_params },
1296 { OSSL_FUNC_KEYMGMT_GEN, (void (*)(void))ec_gen },
1297 { OSSL_FUNC_KEYMGMT_GEN_CLEANUP, (void (*)(void))ec_gen_cleanup },
1298 { OSSL_FUNC_KEYMGMT_LOAD, (void (*)(void))ec_load },
1299 { OSSL_FUNC_KEYMGMT_FREE, (void (*)(void))ec_freedata },
1300 { OSSL_FUNC_KEYMGMT_GET_PARAMS, (void (*) (void))ec_get_params },
1301 { OSSL_FUNC_KEYMGMT_GETTABLE_PARAMS, (void (*) (void))ec_gettable_params },
1302 { OSSL_FUNC_KEYMGMT_SET_PARAMS, (void (*) (void))ec_set_params },
1303 { OSSL_FUNC_KEYMGMT_SETTABLE_PARAMS, (void (*) (void))ec_settable_params },
1304 { OSSL_FUNC_KEYMGMT_HAS, (void (*)(void))ec_has },
1305 { OSSL_FUNC_KEYMGMT_MATCH, (void (*)(void))ec_match },
1306 { OSSL_FUNC_KEYMGMT_VALIDATE, (void (*)(void))ec_validate },
1307 { OSSL_FUNC_KEYMGMT_IMPORT, (void (*)(void))ec_import },
1308 { OSSL_FUNC_KEYMGMT_IMPORT_TYPES, (void (*)(void))ec_import_types },
1309 { OSSL_FUNC_KEYMGMT_EXPORT, (void (*)(void))ec_export },
1310 { OSSL_FUNC_KEYMGMT_EXPORT_TYPES, (void (*)(void))ec_export_types },
1311 { OSSL_FUNC_KEYMGMT_QUERY_OPERATION_NAME,
1312 (void (*)(void))ec_query_operation_name },
1317 # ifndef OPENSSL_NO_SM2
1318 const OSSL_DISPATCH sm2_keymgmt_functions[] = {
1319 { OSSL_FUNC_KEYMGMT_NEW, (void (*)(void))ec_newdata },
1320 { OSSL_FUNC_KEYMGMT_GEN_INIT, (void (*)(void))ec_gen_init },
1321 { OSSL_FUNC_KEYMGMT_GEN_SET_TEMPLATE,
1322 (void (*)(void))ec_gen_set_template },
1323 { OSSL_FUNC_KEYMGMT_GEN_SET_PARAMS, (void (*)(void))ec_gen_set_params },
1324 { OSSL_FUNC_KEYMGMT_GEN_SETTABLE_PARAMS,
1325 (void (*)(void))ec_gen_settable_params },
1326 { OSSL_FUNC_KEYMGMT_GEN, (void (*)(void))sm2_gen },
1327 { OSSL_FUNC_KEYMGMT_GEN_CLEANUP, (void (*)(void))ec_gen_cleanup },
1328 { OSSL_FUNC_KEYMGMT_FREE, (void (*)(void))ec_freedata },
1329 { OSSL_FUNC_KEYMGMT_GET_PARAMS, (void (*) (void))sm2_get_params },
1330 { OSSL_FUNC_KEYMGMT_GETTABLE_PARAMS, (void (*) (void))sm2_gettable_params },
1331 { OSSL_FUNC_KEYMGMT_SET_PARAMS, (void (*) (void))ec_set_params },
1332 { OSSL_FUNC_KEYMGMT_SETTABLE_PARAMS, (void (*) (void))sm2_settable_params },
1333 { OSSL_FUNC_KEYMGMT_HAS, (void (*)(void))ec_has },
1334 { OSSL_FUNC_KEYMGMT_MATCH, (void (*)(void))ec_match },
1335 { OSSL_FUNC_KEYMGMT_VALIDATE, (void (*)(void))sm2_validate },
1336 { OSSL_FUNC_KEYMGMT_IMPORT, (void (*)(void))sm2_import },
1337 { OSSL_FUNC_KEYMGMT_IMPORT_TYPES, (void (*)(void))ec_import_types },
1338 { OSSL_FUNC_KEYMGMT_EXPORT, (void (*)(void))ec_export },
1339 { OSSL_FUNC_KEYMGMT_EXPORT_TYPES, (void (*)(void))ec_export_types },
1340 { OSSL_FUNC_KEYMGMT_QUERY_OPERATION_NAME,
1341 (void (*)(void))sm2_query_operation_name },