2 * Copyright 2020-2021 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
11 * 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 <openssl/proverr.h>
24 #include "crypto/bn.h"
25 #include "crypto/ec.h"
26 #include "prov/implementations.h"
27 #include "prov/providercommon.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;
340 static int common_check_sm2(const EC_KEY *ec, int sm2_wanted)
342 const EC_GROUP *ecg = NULL;
345 * sm2_wanted: import the keys or domparams only on SM2 Curve
346 * !sm2_wanted: import the keys or domparams only not on SM2 Curve
348 if ((ecg = EC_KEY_get0_group(ec)) == NULL
349 || (sm2_wanted ^ (EC_GROUP_get_curve_name(ecg) == NID_sm2)))
355 int common_import(void *keydata, int selection, const OSSL_PARAM params[],
358 EC_KEY *ec = keydata;
361 if (!ossl_prov_is_running() || ec == NULL)
365 * In this implementation, we can export/import only keydata in the
366 * following combinations:
367 * - domain parameters (+optional other params)
368 * - public key with associated domain parameters (+optional other params)
369 * - private key with associated domain parameters and optional public key
370 * (+optional other params)
373 * - domain parameters must always be requested
374 * - private key must be requested alongside public key
375 * - other parameters are always optional
377 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) == 0)
380 ok = ok && ec_group_fromdata(ec, params);
382 if (!common_check_sm2(ec, sm2_wanted))
385 if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0) {
386 int include_private =
387 selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY ? 1 : 0;
389 ok = ok && ec_key_fromdata(ec, params, include_private);
391 if ((selection & OSSL_KEYMGMT_SELECT_OTHER_PARAMETERS) != 0)
392 ok = ok && ec_key_otherparams_fromdata(ec, params);
398 int ec_import(void *keydata, int selection, const OSSL_PARAM params[])
400 return common_import(keydata, selection, params, 0);
404 # ifndef OPENSSL_NO_SM2
406 int sm2_import(void *keydata, int selection, const OSSL_PARAM params[])
408 return common_import(keydata, selection, params, 1);
414 int ec_export(void *keydata, int selection, OSSL_CALLBACK *param_cb,
417 EC_KEY *ec = keydata;
418 OSSL_PARAM_BLD *tmpl = NULL;
419 OSSL_PARAM *params = NULL;
420 unsigned char *pub_key = NULL, *genbuf = NULL;
421 BN_CTX *bnctx = NULL;
424 if (!ossl_prov_is_running() || ec == NULL)
428 * In this implementation, we can export/import only keydata in the
429 * following combinations:
430 * - domain parameters (+optional other params)
431 * - public key with associated domain parameters (+optional other params)
432 * - private key with associated public key and domain parameters
433 * (+optional other params)
436 * - domain parameters must always be requested
437 * - private key must be requested alongside public key
438 * - other parameters are always optional
440 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) == 0)
442 if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0
443 && (selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) == 0)
445 if ((selection & OSSL_KEYMGMT_SELECT_OTHER_PARAMETERS) != 0
446 && (selection & OSSL_KEYMGMT_SELECT_KEYPAIR) == 0)
449 tmpl = OSSL_PARAM_BLD_new();
453 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0) {
454 bnctx = BN_CTX_new_ex(ec_key_get_libctx(ec));
460 ok = ok && ec_group_todata(EC_KEY_get0_group(ec), tmpl, NULL,
461 ec_key_get_libctx(ec), ec_key_get0_propq(ec),
465 if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0) {
466 int include_private =
467 selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY ? 1 : 0;
469 ok = ok && key_to_params(ec, tmpl, NULL, include_private, &pub_key);
471 if ((selection & OSSL_KEYMGMT_SELECT_OTHER_PARAMETERS) != 0)
472 ok = ok && otherparams_to_params(ec, tmpl, NULL);
474 if (ok && (params = OSSL_PARAM_BLD_to_param(tmpl)) != NULL)
475 ok = param_cb(params, cbarg);
477 OSSL_PARAM_BLD_free_params(params);
478 OSSL_PARAM_BLD_free(tmpl);
479 OPENSSL_free(pub_key);
480 OPENSSL_free(genbuf);
486 /* IMEXPORT = IMPORT + EXPORT */
488 # define EC_IMEXPORTABLE_DOM_PARAMETERS \
489 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_GROUP_NAME, NULL, 0), \
490 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_ENCODING, NULL, 0), \
491 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT, NULL, 0),\
492 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_FIELD_TYPE, NULL, 0), \
493 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_P, NULL, 0), \
494 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_A, NULL, 0), \
495 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_B, NULL, 0), \
496 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_GENERATOR, NULL, 0), \
497 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_ORDER, NULL, 0), \
498 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_COFACTOR, NULL, 0), \
499 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_SEED, NULL, 0)
501 # define EC_IMEXPORTABLE_PUBLIC_KEY \
502 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_PUB_KEY, NULL, 0)
503 # define EC_IMEXPORTABLE_PRIVATE_KEY \
504 OSSL_PARAM_BN(OSSL_PKEY_PARAM_PRIV_KEY, NULL, 0)
505 # define EC_IMEXPORTABLE_OTHER_PARAMETERS \
506 OSSL_PARAM_int(OSSL_PKEY_PARAM_USE_COFACTOR_ECDH, NULL), \
507 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_INCLUDE_PUBLIC, NULL)
510 * Include all the possible combinations of OSSL_PARAM arrays for
511 * ec_imexport_types().
513 * They are in a separate file as it is ~100 lines of unreadable and
514 * uninteresting machine generated stuff.
516 #include "ec_kmgmt_imexport.inc"
519 const OSSL_PARAM *ec_imexport_types(int selection)
523 if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0)
525 if ((selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0)
527 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0)
529 if ((selection & OSSL_KEYMGMT_SELECT_OTHER_PARAMETERS) != 0)
531 return ec_types[type_select];
535 const OSSL_PARAM *ec_import_types(int selection)
537 return ec_imexport_types(selection);
541 const OSSL_PARAM *ec_export_types(int selection)
543 return ec_imexport_types(selection);
546 static int ec_get_ecm_params(const EC_GROUP *group, OSSL_PARAM params[])
548 #ifdef OPENSSL_NO_EC2M
552 unsigned int k1 = 0, k2 = 0, k3 = 0;
554 const char *basis_name = NULL;
555 int fid = EC_GROUP_get_field_type(group);
557 if (fid != NID_X9_62_characteristic_two_field)
560 basis_nid = EC_GROUP_get_basis_type(group);
561 if (basis_nid == NID_X9_62_tpBasis)
562 basis_name = SN_X9_62_tpBasis;
563 else if (basis_nid == NID_X9_62_ppBasis)
564 basis_name = SN_X9_62_ppBasis;
568 m = EC_GROUP_get_degree(group);
569 if (!ossl_param_build_set_int(NULL, params, OSSL_PKEY_PARAM_EC_CHAR2_M, m)
570 || !ossl_param_build_set_utf8_string(NULL, params,
571 OSSL_PKEY_PARAM_EC_CHAR2_TYPE,
575 if (basis_nid == NID_X9_62_tpBasis) {
576 if (!EC_GROUP_get_trinomial_basis(group, &k1)
577 || !ossl_param_build_set_int(NULL, params,
578 OSSL_PKEY_PARAM_EC_CHAR2_TP_BASIS,
582 if (!EC_GROUP_get_pentanomial_basis(group, &k1, &k2, &k3)
583 || !ossl_param_build_set_int(NULL, params,
584 OSSL_PKEY_PARAM_EC_CHAR2_PP_K1, (int)k1)
585 || !ossl_param_build_set_int(NULL, params,
586 OSSL_PKEY_PARAM_EC_CHAR2_PP_K2, (int)k2)
587 || !ossl_param_build_set_int(NULL, params,
588 OSSL_PKEY_PARAM_EC_CHAR2_PP_K3, (int)k3))
594 #endif /* OPENSSL_NO_EC2M */
598 int common_get_params(void *key, OSSL_PARAM params[], int sm2)
602 const EC_GROUP *ecg = NULL;
604 unsigned char *pub_key = NULL, *genbuf = NULL;
605 OSSL_LIB_CTX *libctx;
607 BN_CTX *bnctx = NULL;
609 ecg = EC_KEY_get0_group(eck);
613 libctx = ec_key_get_libctx(eck);
614 propq = ec_key_get0_propq(eck);
616 bnctx = BN_CTX_new_ex(libctx);
621 if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_MAX_SIZE)) != NULL
622 && !OSSL_PARAM_set_int(p, ECDSA_size(eck)))
624 if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_BITS)) != NULL
625 && !OSSL_PARAM_set_int(p, EC_GROUP_order_bits(ecg)))
627 if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_SECURITY_BITS)) != NULL) {
628 int ecbits, sec_bits;
630 ecbits = EC_GROUP_order_bits(ecg);
633 * The following estimates are based on the values published
634 * in Table 2 of "NIST Special Publication 800-57 Part 1 Revision 4"
635 * at http://dx.doi.org/10.6028/NIST.SP.800-57pt1r4 .
637 * Note that the above reference explicitly categorizes algorithms in a
638 * discrete set of values {80, 112, 128, 192, 256}, and that it is
639 * relevant only for NIST approved Elliptic Curves, while OpenSSL
640 * applies the same logic also to other curves.
642 * Classifications produced by other standardazing bodies might differ,
643 * so the results provided for "bits of security" by this provider are
644 * to be considered merely indicative, and it is the users'
645 * responsibility to compare these values against the normative
646 * references that may be relevant for their intent and purposes.
650 else if (ecbits >= 384)
652 else if (ecbits >= 256)
654 else if (ecbits >= 224)
656 else if (ecbits >= 160)
659 sec_bits = ecbits / 2;
661 if (!OSSL_PARAM_set_int(p, sec_bits))
666 if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_DEFAULT_DIGEST)) != NULL
667 && !OSSL_PARAM_set_utf8_string(p, EC_DEFAULT_MD))
670 if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_DEFAULT_DIGEST)) != NULL
671 && !OSSL_PARAM_set_utf8_string(p, SM2_DEFAULT_MD))
675 /* SM2 doesn't support this PARAM */
677 p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_USE_COFACTOR_ECDH);
679 int ecdh_cofactor_mode = 0;
682 (EC_KEY_get_flags(eck) & EC_FLAG_COFACTOR_ECDH) ? 1 : 0;
684 if (!OSSL_PARAM_set_int(p, ecdh_cofactor_mode))
688 if ((p = OSSL_PARAM_locate(params,
689 OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY)) != NULL) {
690 p->return_size = EC_POINT_point2oct(EC_KEY_get0_group(key),
691 EC_KEY_get0_public_key(key),
692 POINT_CONVERSION_UNCOMPRESSED,
693 p->data, p->return_size, bnctx);
694 if (p->return_size == 0)
698 ret = ec_get_ecm_params(ecg, params)
699 && ec_group_todata(ecg, NULL, params, libctx, propq, bnctx, &genbuf)
700 && key_to_params(eck, NULL, params, 1, &pub_key)
701 && otherparams_to_params(eck, NULL, params);
703 OPENSSL_free(genbuf);
704 OPENSSL_free(pub_key);
711 int ec_get_params(void *key, OSSL_PARAM params[])
713 return common_get_params(key, params, 0);
716 #ifndef OPENSSL_NO_EC2M
717 # define EC2M_GETTABLE_DOM_PARAMS \
718 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_CHAR2_M, NULL), \
719 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_CHAR2_TYPE, NULL, 0), \
720 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_CHAR2_TP_BASIS, NULL), \
721 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_CHAR2_PP_K1, NULL), \
722 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_CHAR2_PP_K2, NULL), \
723 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_CHAR2_PP_K3, NULL),
725 # define EC2M_GETTABLE_DOM_PARAMS
728 static const OSSL_PARAM ec_known_gettable_params[] = {
729 OSSL_PARAM_int(OSSL_PKEY_PARAM_BITS, NULL),
730 OSSL_PARAM_int(OSSL_PKEY_PARAM_SECURITY_BITS, NULL),
731 OSSL_PARAM_int(OSSL_PKEY_PARAM_MAX_SIZE, NULL),
732 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_DEFAULT_DIGEST, NULL, 0),
733 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY, NULL, 0),
734 EC_IMEXPORTABLE_DOM_PARAMETERS,
735 EC2M_GETTABLE_DOM_PARAMS
736 EC_IMEXPORTABLE_PUBLIC_KEY,
737 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_PUB_X, NULL, 0),
738 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_PUB_Y, NULL, 0),
739 EC_IMEXPORTABLE_PRIVATE_KEY,
740 EC_IMEXPORTABLE_OTHER_PARAMETERS,
745 const OSSL_PARAM *ec_gettable_params(void *provctx)
747 return ec_known_gettable_params;
750 static const OSSL_PARAM ec_known_settable_params[] = {
751 OSSL_PARAM_int(OSSL_PKEY_PARAM_USE_COFACTOR_ECDH, NULL),
752 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY, NULL, 0),
753 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_ENCODING, NULL, 0),
754 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT, NULL, 0),
755 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_SEED, NULL, 0),
756 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_INCLUDE_PUBLIC, NULL),
757 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_GROUP_CHECK_TYPE, NULL, 0),
762 const OSSL_PARAM *ec_settable_params(void *provctx)
764 return ec_known_settable_params;
768 int ec_set_params(void *key, const OSSL_PARAM params[])
776 if (!ec_group_set_params((EC_GROUP *)EC_KEY_get0_group(key), params))
779 p = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY);
781 BN_CTX *ctx = BN_CTX_new_ex(ec_key_get_libctx(key));
785 || p->data_type != OSSL_PARAM_OCTET_STRING
786 || !EC_KEY_oct2key(key, p->data, p->data_size, ctx))
793 return ec_key_otherparams_fromdata(eck, params);
797 # ifndef OPENSSL_NO_SM2
799 int sm2_get_params(void *key, OSSL_PARAM params[])
801 return common_get_params(key, params, 1);
804 static const OSSL_PARAM sm2_known_gettable_params[] = {
805 OSSL_PARAM_int(OSSL_PKEY_PARAM_BITS, NULL),
806 OSSL_PARAM_int(OSSL_PKEY_PARAM_SECURITY_BITS, NULL),
807 OSSL_PARAM_int(OSSL_PKEY_PARAM_MAX_SIZE, NULL),
808 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_DEFAULT_DIGEST, NULL, 0),
809 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY, NULL, 0),
810 EC_IMEXPORTABLE_DOM_PARAMETERS,
811 EC_IMEXPORTABLE_PUBLIC_KEY,
812 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_PUB_X, NULL, 0),
813 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_PUB_Y, NULL, 0),
814 EC_IMEXPORTABLE_PRIVATE_KEY,
819 const OSSL_PARAM *sm2_gettable_params(ossl_unused void *provctx)
821 return sm2_known_gettable_params;
824 static const OSSL_PARAM sm2_known_settable_params[] = {
825 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY, NULL, 0),
830 const OSSL_PARAM *sm2_settable_params(ossl_unused void *provctx)
832 return sm2_known_settable_params;
836 int sm2_validate(const void *keydata, int selection)
838 const EC_KEY *eck = keydata;
842 if (!ossl_prov_is_running())
845 ctx = BN_CTX_new_ex(ec_key_get_libctx(eck));
849 if ((selection & EC_POSSIBLE_SELECTIONS) != 0)
852 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0)
853 ok = ok && EC_GROUP_check(EC_KEY_get0_group(eck), ctx);
855 if ((selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0)
856 ok = ok && ec_key_public_check(eck, ctx);
858 if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0)
859 ok = ok && sm2_key_private_check(eck);
861 if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) == OSSL_KEYMGMT_SELECT_KEYPAIR)
862 ok = ok && ec_key_pairwise_check(eck, ctx);
871 int ec_validate(const void *keydata, int selection)
873 const EC_KEY *eck = keydata;
877 if (!ossl_prov_is_running())
880 ctx = BN_CTX_new_ex(ec_key_get_libctx(eck));
884 if ((selection & EC_POSSIBLE_SELECTIONS) != 0)
887 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0) {
888 int flags = EC_KEY_get_flags(eck);
890 if ((flags & EC_FLAG_CHECK_NAMED_GROUP) != 0)
891 ok = ok && EC_GROUP_check_named_curve(EC_KEY_get0_group(eck),
892 (flags & EC_FLAG_CHECK_NAMED_GROUP_NIST) != 0, ctx);
894 ok = ok && EC_GROUP_check(EC_KEY_get0_group(eck), ctx);
897 if ((selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0)
898 ok = ok && ec_key_public_check(eck, ctx);
900 if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0)
901 ok = ok && ec_key_private_check(eck);
903 if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) == OSSL_KEYMGMT_SELECT_KEYPAIR)
904 ok = ok && ec_key_pairwise_check(eck, ctx);
911 OSSL_LIB_CTX *libctx;
917 BIGNUM *p, *a, *b, *order, *cofactor;
918 unsigned char *gen, *seed;
919 size_t gen_len, seed_len;
925 static void *ec_gen_init(void *provctx, int selection)
927 OSSL_LIB_CTX *libctx = PROV_LIBCTX_OF(provctx);
928 struct ec_gen_ctx *gctx = NULL;
930 if (!ossl_prov_is_running() || (selection & (EC_POSSIBLE_SELECTIONS)) == 0)
933 if ((gctx = OPENSSL_zalloc(sizeof(*gctx))) != NULL) {
934 gctx->libctx = libctx;
935 gctx->selection = selection;
941 static int ec_gen_set_group(void *genctx, const EC_GROUP *src)
943 struct ec_gen_ctx *gctx = genctx;
946 group = EC_GROUP_dup(src);
948 ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_CURVE);
951 EC_GROUP_free(gctx->gen_group);
952 gctx->gen_group = group;
956 static int ec_gen_set_template(void *genctx, void *templ)
958 struct ec_gen_ctx *gctx = genctx;
960 const EC_GROUP *ec_group;
962 if (!ossl_prov_is_running() || gctx == NULL || ec == NULL)
964 if ((ec_group = EC_KEY_get0_group(ec)) == NULL)
966 return ec_gen_set_group(gctx, ec_group);
969 #define COPY_INT_PARAM(params, key, val) \
970 p = OSSL_PARAM_locate_const(params, key); \
971 if (p != NULL && !OSSL_PARAM_get_int(p, &val)) \
974 #define COPY_UTF8_PARAM(params, key, val) \
975 p = OSSL_PARAM_locate_const(params, key); \
977 if (p->data_type != OSSL_PARAM_UTF8_STRING) \
980 val = OPENSSL_strdup(p->data); \
985 #define COPY_OCTET_PARAM(params, key, val, len) \
986 p = OSSL_PARAM_locate_const(params, key); \
988 if (p->data_type != OSSL_PARAM_OCTET_STRING) \
991 len = p->data_size; \
992 val = OPENSSL_memdup(p->data, p->data_size); \
997 #define COPY_BN_PARAM(params, key, bn) \
998 p = OSSL_PARAM_locate_const(params, key); \
1002 if (bn == NULL || !OSSL_PARAM_get_BN(p, &bn)) \
1006 static int ec_gen_set_params(void *genctx, const OSSL_PARAM params[])
1009 struct ec_gen_ctx *gctx = genctx;
1010 const OSSL_PARAM *p;
1011 EC_GROUP *group = NULL;
1013 COPY_INT_PARAM(params, OSSL_PKEY_PARAM_USE_COFACTOR_ECDH, gctx->ecdh_mode);
1015 COPY_UTF8_PARAM(params, OSSL_PKEY_PARAM_GROUP_NAME, gctx->group_name);
1016 COPY_UTF8_PARAM(params, OSSL_PKEY_PARAM_EC_FIELD_TYPE, gctx->field_type);
1017 COPY_UTF8_PARAM(params, OSSL_PKEY_PARAM_EC_ENCODING, gctx->encoding);
1018 COPY_UTF8_PARAM(params, OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT, gctx->pt_format);
1019 COPY_UTF8_PARAM(params, OSSL_PKEY_PARAM_EC_GROUP_CHECK_TYPE, gctx->group_check);
1021 COPY_BN_PARAM(params, OSSL_PKEY_PARAM_EC_P, gctx->p);
1022 COPY_BN_PARAM(params, OSSL_PKEY_PARAM_EC_A, gctx->a);
1023 COPY_BN_PARAM(params, OSSL_PKEY_PARAM_EC_B, gctx->b);
1024 COPY_BN_PARAM(params, OSSL_PKEY_PARAM_EC_ORDER, gctx->order);
1025 COPY_BN_PARAM(params, OSSL_PKEY_PARAM_EC_COFACTOR, gctx->cofactor);
1027 COPY_OCTET_PARAM(params, OSSL_PKEY_PARAM_EC_SEED, gctx->seed, gctx->seed_len);
1028 COPY_OCTET_PARAM(params, OSSL_PKEY_PARAM_EC_GENERATOR, gctx->gen,
1033 EC_GROUP_free(group);
1037 static int ec_gen_set_group_from_params(struct ec_gen_ctx *gctx)
1040 OSSL_PARAM_BLD *bld;
1041 OSSL_PARAM *params = NULL;
1042 EC_GROUP *group = NULL;
1044 bld = OSSL_PARAM_BLD_new();
1048 if (gctx->encoding != NULL
1049 && !OSSL_PARAM_BLD_push_utf8_string(bld, OSSL_PKEY_PARAM_EC_ENCODING,
1053 if (gctx->pt_format != NULL
1054 && !OSSL_PARAM_BLD_push_utf8_string(bld,
1055 OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT,
1056 gctx->pt_format, 0))
1059 if (gctx->group_name != NULL) {
1060 if (!OSSL_PARAM_BLD_push_utf8_string(bld, OSSL_PKEY_PARAM_GROUP_NAME,
1061 gctx->group_name, 0))
1063 /* Ignore any other parameters if there is a group name */
1065 } else if (gctx->field_type != NULL) {
1066 if (!OSSL_PARAM_BLD_push_utf8_string(bld, OSSL_PKEY_PARAM_EC_FIELD_TYPE,
1067 gctx->field_type, 0))
1075 || gctx->order == NULL
1076 || !OSSL_PARAM_BLD_push_BN(bld, OSSL_PKEY_PARAM_EC_P, gctx->p)
1077 || !OSSL_PARAM_BLD_push_BN(bld, OSSL_PKEY_PARAM_EC_A, gctx->a)
1078 || !OSSL_PARAM_BLD_push_BN(bld, OSSL_PKEY_PARAM_EC_B, gctx->b)
1079 || !OSSL_PARAM_BLD_push_BN(bld, OSSL_PKEY_PARAM_EC_ORDER, gctx->order))
1082 if (gctx->cofactor != NULL
1083 && !OSSL_PARAM_BLD_push_BN(bld, OSSL_PKEY_PARAM_EC_COFACTOR,
1087 if (gctx->seed != NULL
1088 && !OSSL_PARAM_BLD_push_octet_string(bld, OSSL_PKEY_PARAM_EC_SEED,
1089 gctx->seed, gctx->seed_len))
1092 if (gctx->gen == NULL
1093 || !OSSL_PARAM_BLD_push_octet_string(bld, OSSL_PKEY_PARAM_EC_GENERATOR,
1094 gctx->gen, gctx->gen_len))
1097 params = OSSL_PARAM_BLD_to_param(bld);
1100 group = EC_GROUP_new_from_params(params, gctx->libctx, NULL);
1104 EC_GROUP_free(gctx->gen_group);
1105 gctx->gen_group = group;
1109 OSSL_PARAM_BLD_free_params(params);
1110 OSSL_PARAM_BLD_free(bld);
1114 static const OSSL_PARAM *ec_gen_settable_params(void *provctx)
1116 static OSSL_PARAM settable[] = {
1117 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_GROUP_NAME, NULL, 0),
1118 OSSL_PARAM_int(OSSL_PKEY_PARAM_USE_COFACTOR_ECDH, NULL),
1119 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_ENCODING, NULL, 0),
1120 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT, NULL, 0),
1121 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_FIELD_TYPE, NULL, 0),
1122 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_P, NULL, 0),
1123 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_A, NULL, 0),
1124 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_B, NULL, 0),
1125 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_GENERATOR, NULL, 0),
1126 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_ORDER, NULL, 0),
1127 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_COFACTOR, NULL, 0),
1128 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_SEED, NULL, 0),
1135 static int ec_gen_assign_group(EC_KEY *ec, EC_GROUP *group)
1137 if (group == NULL) {
1138 ERR_raise(ERR_LIB_PROV, PROV_R_NO_PARAMETERS_SET);
1141 return EC_KEY_set_group(ec, group) > 0;
1145 * The callback arguments (osslcb & cbarg) are not used by EC_KEY generation
1147 static void *ec_gen(void *genctx, OSSL_CALLBACK *osslcb, void *cbarg)
1149 struct ec_gen_ctx *gctx = genctx;
1153 if (!ossl_prov_is_running()
1155 || (ec = EC_KEY_new_ex(gctx->libctx, NULL)) == NULL)
1158 if (gctx->gen_group == NULL) {
1159 if (!ec_gen_set_group_from_params(gctx))
1162 if (gctx->encoding != NULL) {
1163 int flags = ec_encoding_name2id(gctx->encoding);
1167 EC_GROUP_set_asn1_flag(gctx->gen_group, flags);
1169 if (gctx->pt_format != NULL) {
1170 int format = ec_pt_format_name2id(gctx->pt_format);
1174 EC_GROUP_set_point_conversion_form(gctx->gen_group, format);
1178 /* We must always assign a group, no matter what */
1179 ret = ec_gen_assign_group(ec, gctx->gen_group);
1181 /* Whether you want it or not, you get a keypair, not just one half */
1182 if ((gctx->selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0)
1183 ret = ret && EC_KEY_generate_key(ec);
1185 if (gctx->ecdh_mode != -1)
1186 ret = ret && ec_set_ecdh_cofactor_mode(ec, gctx->ecdh_mode);
1188 if (gctx->group_check != NULL)
1189 ret = ret && ec_set_check_group_type_from_name(ec, gctx->group_check);
1193 /* Something went wrong, throw the key away */
1199 # ifndef OPENSSL_NO_SM2
1201 * The callback arguments (osslcb & cbarg) are not used by EC_KEY generation
1203 static void *sm2_gen(void *genctx, OSSL_CALLBACK *osslcb, void *cbarg)
1205 struct ec_gen_ctx *gctx = genctx;
1210 || (ec = EC_KEY_new_ex(gctx->libctx, NULL)) == NULL)
1213 if (gctx->gen_group == NULL) {
1214 if (!ec_gen_set_group_from_params(gctx))
1217 if (gctx->encoding) {
1218 int flags = ec_encoding_name2id(gctx->encoding);
1222 EC_GROUP_set_asn1_flag(gctx->gen_group, flags);
1224 if (gctx->pt_format != NULL) {
1225 int format = ec_pt_format_name2id(gctx->pt_format);
1229 EC_GROUP_set_point_conversion_form(gctx->gen_group, format);
1233 /* We must always assign a group, no matter what */
1234 ret = ec_gen_assign_group(ec, gctx->gen_group);
1236 /* Whether you want it or not, you get a keypair, not just one half */
1237 if ((gctx->selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0) {
1239 * For SM2, we need a new flag to indicate the 'generate' function
1240 * to use a new range
1242 EC_KEY_set_flags(ec, EC_FLAG_SM2_RANGE);
1243 ret = ret && EC_KEY_generate_key(ec);
1249 /* Something went wrong, throw the key away */
1256 static void ec_gen_cleanup(void *genctx)
1258 struct ec_gen_ctx *gctx = genctx;
1263 EC_GROUP_free(gctx->gen_group);
1267 BN_free(gctx->order);
1268 BN_free(gctx->cofactor);
1269 OPENSSL_free(gctx->group_name);
1270 OPENSSL_free(gctx->field_type);
1271 OPENSSL_free(gctx->pt_format);
1272 OPENSSL_free(gctx->encoding);
1273 OPENSSL_free(gctx->seed);
1274 OPENSSL_free(gctx->gen);
1278 static void *common_load(const void *reference, size_t reference_sz,
1283 if (ossl_prov_is_running() && reference_sz == sizeof(ec)) {
1284 /* The contents of the reference is the address to our object */
1285 ec = *(EC_KEY **)reference;
1287 if (!common_check_sm2(ec, sm2_wanted))
1290 /* We grabbed, so we detach it */
1291 *(EC_KEY **)reference = NULL;
1297 static void *ec_load(const void *reference, size_t reference_sz)
1299 return common_load(reference, reference_sz, 0);
1303 # ifndef OPENSSL_NO_SM2
1304 static void *sm2_load(const void *reference, size_t reference_sz)
1306 return common_load(reference, reference_sz, 1);
1311 const OSSL_DISPATCH ossl_ec_keymgmt_functions[] = {
1312 { OSSL_FUNC_KEYMGMT_NEW, (void (*)(void))ec_newdata },
1313 { OSSL_FUNC_KEYMGMT_GEN_INIT, (void (*)(void))ec_gen_init },
1314 { OSSL_FUNC_KEYMGMT_GEN_SET_TEMPLATE,
1315 (void (*)(void))ec_gen_set_template },
1316 { OSSL_FUNC_KEYMGMT_GEN_SET_PARAMS, (void (*)(void))ec_gen_set_params },
1317 { OSSL_FUNC_KEYMGMT_GEN_SETTABLE_PARAMS,
1318 (void (*)(void))ec_gen_settable_params },
1319 { OSSL_FUNC_KEYMGMT_GEN, (void (*)(void))ec_gen },
1320 { OSSL_FUNC_KEYMGMT_GEN_CLEANUP, (void (*)(void))ec_gen_cleanup },
1321 { OSSL_FUNC_KEYMGMT_LOAD, (void (*)(void))ec_load },
1322 { OSSL_FUNC_KEYMGMT_FREE, (void (*)(void))ec_freedata },
1323 { OSSL_FUNC_KEYMGMT_GET_PARAMS, (void (*) (void))ec_get_params },
1324 { OSSL_FUNC_KEYMGMT_GETTABLE_PARAMS, (void (*) (void))ec_gettable_params },
1325 { OSSL_FUNC_KEYMGMT_SET_PARAMS, (void (*) (void))ec_set_params },
1326 { OSSL_FUNC_KEYMGMT_SETTABLE_PARAMS, (void (*) (void))ec_settable_params },
1327 { OSSL_FUNC_KEYMGMT_HAS, (void (*)(void))ec_has },
1328 { OSSL_FUNC_KEYMGMT_MATCH, (void (*)(void))ec_match },
1329 { OSSL_FUNC_KEYMGMT_VALIDATE, (void (*)(void))ec_validate },
1330 { OSSL_FUNC_KEYMGMT_IMPORT, (void (*)(void))ec_import },
1331 { OSSL_FUNC_KEYMGMT_IMPORT_TYPES, (void (*)(void))ec_import_types },
1332 { OSSL_FUNC_KEYMGMT_EXPORT, (void (*)(void))ec_export },
1333 { OSSL_FUNC_KEYMGMT_EXPORT_TYPES, (void (*)(void))ec_export_types },
1334 { OSSL_FUNC_KEYMGMT_QUERY_OPERATION_NAME,
1335 (void (*)(void))ec_query_operation_name },
1340 # ifndef OPENSSL_NO_SM2
1341 const OSSL_DISPATCH ossl_sm2_keymgmt_functions[] = {
1342 { OSSL_FUNC_KEYMGMT_NEW, (void (*)(void))ec_newdata },
1343 { OSSL_FUNC_KEYMGMT_GEN_INIT, (void (*)(void))ec_gen_init },
1344 { OSSL_FUNC_KEYMGMT_GEN_SET_TEMPLATE,
1345 (void (*)(void))ec_gen_set_template },
1346 { OSSL_FUNC_KEYMGMT_GEN_SET_PARAMS, (void (*)(void))ec_gen_set_params },
1347 { OSSL_FUNC_KEYMGMT_GEN_SETTABLE_PARAMS,
1348 (void (*)(void))ec_gen_settable_params },
1349 { OSSL_FUNC_KEYMGMT_GEN, (void (*)(void))sm2_gen },
1350 { OSSL_FUNC_KEYMGMT_GEN_CLEANUP, (void (*)(void))ec_gen_cleanup },
1351 { OSSL_FUNC_KEYMGMT_LOAD, (void (*)(void))sm2_load },
1352 { OSSL_FUNC_KEYMGMT_FREE, (void (*)(void))ec_freedata },
1353 { OSSL_FUNC_KEYMGMT_GET_PARAMS, (void (*) (void))sm2_get_params },
1354 { OSSL_FUNC_KEYMGMT_GETTABLE_PARAMS, (void (*) (void))sm2_gettable_params },
1355 { OSSL_FUNC_KEYMGMT_SET_PARAMS, (void (*) (void))ec_set_params },
1356 { OSSL_FUNC_KEYMGMT_SETTABLE_PARAMS, (void (*) (void))sm2_settable_params },
1357 { OSSL_FUNC_KEYMGMT_HAS, (void (*)(void))ec_has },
1358 { OSSL_FUNC_KEYMGMT_MATCH, (void (*)(void))ec_match },
1359 { OSSL_FUNC_KEYMGMT_VALIDATE, (void (*)(void))sm2_validate },
1360 { OSSL_FUNC_KEYMGMT_IMPORT, (void (*)(void))sm2_import },
1361 { OSSL_FUNC_KEYMGMT_IMPORT_TYPES, (void (*)(void))ec_import_types },
1362 { OSSL_FUNC_KEYMGMT_EXPORT, (void (*)(void))ec_export },
1363 { OSSL_FUNC_KEYMGMT_EXPORT_TYPES, (void (*)(void))ec_export_types },
1364 { OSSL_FUNC_KEYMGMT_QUERY_OPERATION_NAME,
1365 (void (*)(void))sm2_query_operation_name },