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;
58 static OSSL_FUNC_keymgmt_dup_fn ec_dup;
60 # ifndef OPENSSL_NO_SM2
61 static OSSL_FUNC_keymgmt_new_fn sm2_newdata;
62 static OSSL_FUNC_keymgmt_gen_init_fn sm2_gen_init;
63 static OSSL_FUNC_keymgmt_gen_fn sm2_gen;
64 static OSSL_FUNC_keymgmt_get_params_fn sm2_get_params;
65 static OSSL_FUNC_keymgmt_gettable_params_fn sm2_gettable_params;
66 static OSSL_FUNC_keymgmt_settable_params_fn sm2_settable_params;
67 static OSSL_FUNC_keymgmt_import_fn sm2_import;
68 static OSSL_FUNC_keymgmt_query_operation_name_fn sm2_query_operation_name;
69 static OSSL_FUNC_keymgmt_validate_fn sm2_validate;
73 #define EC_DEFAULT_MD "SHA256"
74 #define EC_POSSIBLE_SELECTIONS \
75 (OSSL_KEYMGMT_SELECT_KEYPAIR | OSSL_KEYMGMT_SELECT_ALL_PARAMETERS)
76 #define SM2_DEFAULT_MD "SM3"
79 const char *ec_query_operation_name(int operation_id)
81 switch (operation_id) {
84 case OSSL_OP_SIGNATURE:
91 # ifndef OPENSSL_NO_SM2
93 const char *sm2_query_operation_name(int operation_id)
95 switch (operation_id) {
96 case OSSL_OP_SIGNATURE:
105 * Callers of key_to_params MUST make sure that domparams_to_params is also
108 * This function only exports the bare keypair, domain parameters and other
109 * parameters are exported separately.
112 int key_to_params(const EC_KEY *eckey, OSSL_PARAM_BLD *tmpl,
113 OSSL_PARAM params[], int include_private,
114 unsigned char **pub_key)
116 BIGNUM *x = NULL, *y = NULL;
117 const BIGNUM *priv_key = NULL;
118 const EC_POINT *pub_point = NULL;
119 const EC_GROUP *ecg = NULL;
120 size_t pub_key_len = 0;
122 BN_CTX *bnctx = NULL;
125 || (ecg = EC_KEY_get0_group(eckey)) == NULL)
128 priv_key = EC_KEY_get0_private_key(eckey);
129 pub_point = EC_KEY_get0_public_key(eckey);
131 if (pub_point != NULL) {
132 OSSL_PARAM *p = NULL, *px = NULL, *py = NULL;
134 * EC_POINT_point2buf() can generate random numbers in some
135 * implementations so we need to ensure we use the correct libctx.
137 bnctx = BN_CTX_new_ex(ossl_ec_key_get_libctx(eckey));
142 /* If we are doing a get then check first before decoding the point */
144 p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_PUB_KEY);
145 px = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_EC_PUB_X);
146 py = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_EC_PUB_Y);
149 if (p != NULL || tmpl != NULL) {
150 /* convert pub_point to a octet string according to the SECG standard */
151 if ((pub_key_len = EC_POINT_point2buf(ecg, pub_point,
152 POINT_CONVERSION_COMPRESSED,
153 pub_key, bnctx)) == 0
154 || !ossl_param_build_set_octet_string(tmpl, p,
155 OSSL_PKEY_PARAM_PUB_KEY,
156 *pub_key, pub_key_len))
159 if (px != NULL || py != NULL) {
161 x = BN_CTX_get(bnctx);
163 y = BN_CTX_get(bnctx);
165 if (!EC_POINT_get_affine_coordinates(ecg, pub_point, x, y, bnctx))
168 && !ossl_param_build_set_bn(tmpl, px,
169 OSSL_PKEY_PARAM_EC_PUB_X, x))
172 && !ossl_param_build_set_bn(tmpl, py,
173 OSSL_PKEY_PARAM_EC_PUB_Y, y))
178 if (priv_key != NULL && include_private) {
183 * Key import/export should never leak the bit length of the secret
186 * For this reason, on export we use padded BIGNUMs with fixed length.
188 * When importing we also should make sure that, even if short lived,
189 * the newly created BIGNUM is marked with the BN_FLG_CONSTTIME flag as
190 * soon as possible, so that any processing of this BIGNUM might opt for
191 * constant time implementations in the backend.
193 * Setting the BN_FLG_CONSTTIME flag alone is never enough, we also have
194 * to preallocate the BIGNUM internal buffer to a fixed public size big
195 * enough that operations performed during the processing never trigger
196 * a realloc which would leak the size of the scalar through memory
202 * The order of the large prime subgroup of the curve is our choice for
203 * a fixed public size, as that is generally the upper bound for
204 * generating a private key in EC cryptosystems and should fit all valid
207 * For padding on export we just use the bit length of the order
208 * converted to bytes (rounding up).
210 * For preallocating the BIGNUM storage we look at the number of "words"
211 * required for the internal representation of the order, and we
212 * preallocate 2 extra "words" in case any of the subsequent processing
213 * might temporarily overflow the order length.
215 ecbits = EC_GROUP_order_bits(ecg);
218 sz = (ecbits + 7 ) / 8;
220 if (!ossl_param_build_set_bn_pad(tmpl, params,
221 OSSL_PKEY_PARAM_PRIV_KEY,
232 int otherparams_to_params(const EC_KEY *ec, OSSL_PARAM_BLD *tmpl,
235 int ecdh_cofactor_mode = 0, group_check = 0;
236 const char *name = NULL;
237 point_conversion_form_t format;
242 format = EC_KEY_get_conv_form(ec);
243 name = ossl_ec_pt_format_id2name((int)format);
245 && !ossl_param_build_set_utf8_string(tmpl, params,
246 OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT,
250 group_check = EC_KEY_get_flags(ec) & EC_FLAG_CHECK_NAMED_GROUP_MASK;
251 name = ossl_ec_check_group_type_id2name(group_check);
253 && !ossl_param_build_set_utf8_string(tmpl, params,
254 OSSL_PKEY_PARAM_EC_GROUP_CHECK_TYPE,
258 if ((EC_KEY_get_enc_flags(ec) & EC_PKEY_NO_PUBKEY) != 0)
259 ossl_param_build_set_int(tmpl, params,
260 OSSL_PKEY_PARAM_EC_INCLUDE_PUBLIC, 0);
263 (EC_KEY_get_flags(ec) & EC_FLAG_COFACTOR_ECDH) ? 1 : 0;
264 return ossl_param_build_set_int(tmpl, params,
265 OSSL_PKEY_PARAM_USE_COFACTOR_ECDH,
270 void *ec_newdata(void *provctx)
272 if (!ossl_prov_is_running())
274 return EC_KEY_new_ex(PROV_LIBCTX_OF(provctx), NULL);
278 # ifndef OPENSSL_NO_SM2
280 void *sm2_newdata(void *provctx)
282 if (!ossl_prov_is_running())
284 return EC_KEY_new_by_curve_name_ex(PROV_LIBCTX_OF(provctx), NULL, NID_sm2);
290 void ec_freedata(void *keydata)
292 EC_KEY_free(keydata);
296 int ec_has(const void *keydata, int selection)
298 const EC_KEY *ec = keydata;
301 if (!ossl_prov_is_running() || ec == NULL)
303 if ((selection & EC_POSSIBLE_SELECTIONS) == 0)
304 return 1; /* the selection is not missing */
306 if ((selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0)
307 ok = ok && (EC_KEY_get0_public_key(ec) != NULL);
308 if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0)
309 ok = ok && (EC_KEY_get0_private_key(ec) != NULL);
310 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0)
311 ok = ok && (EC_KEY_get0_group(ec) != NULL);
313 * We consider OSSL_KEYMGMT_SELECT_OTHER_PARAMETERS to always be
314 * available, so no extra check is needed other than the previous one
315 * against EC_POSSIBLE_SELECTIONS.
320 static int ec_match(const void *keydata1, const void *keydata2, int selection)
322 const EC_KEY *ec1 = keydata1;
323 const EC_KEY *ec2 = keydata2;
324 const EC_GROUP *group_a = EC_KEY_get0_group(ec1);
325 const EC_GROUP *group_b = EC_KEY_get0_group(ec2);
329 if (!ossl_prov_is_running())
332 ctx = BN_CTX_new_ex(ossl_ec_key_get_libctx(ec1));
336 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0)
337 ok = ok && group_a != NULL && group_b != NULL
338 && EC_GROUP_cmp(group_a, group_b, ctx) == 0;
339 if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0) {
340 const BIGNUM *pa = EC_KEY_get0_private_key(ec1);
341 const BIGNUM *pb = EC_KEY_get0_private_key(ec2);
343 ok = ok && BN_cmp(pa, pb) == 0;
345 if ((selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0) {
346 const EC_POINT *pa = EC_KEY_get0_public_key(ec1);
347 const EC_POINT *pb = EC_KEY_get0_public_key(ec2);
349 ok = ok && EC_POINT_cmp(group_b, pa, pb, ctx) == 0;
355 static int common_check_sm2(const EC_KEY *ec, int sm2_wanted)
357 const EC_GROUP *ecg = NULL;
360 * sm2_wanted: import the keys or domparams only on SM2 Curve
361 * !sm2_wanted: import the keys or domparams only not on SM2 Curve
363 if ((ecg = EC_KEY_get0_group(ec)) == NULL
364 || (sm2_wanted ^ (EC_GROUP_get_curve_name(ecg) == NID_sm2)))
370 int common_import(void *keydata, int selection, const OSSL_PARAM params[],
373 EC_KEY *ec = keydata;
376 if (!ossl_prov_is_running() || ec == NULL)
380 * In this implementation, we can export/import only keydata in the
381 * following combinations:
382 * - domain parameters (+optional other params)
383 * - public key with associated domain parameters (+optional other params)
384 * - private key with associated domain parameters and optional public key
385 * (+optional other params)
388 * - domain parameters must always be requested
389 * - private key must be requested alongside public key
390 * - other parameters are always optional
392 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) == 0)
395 ok = ok && ossl_ec_group_fromdata(ec, params);
397 if (!common_check_sm2(ec, sm2_wanted))
400 if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0) {
401 int include_private =
402 selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY ? 1 : 0;
404 ok = ok && ossl_ec_key_fromdata(ec, params, include_private);
406 if ((selection & OSSL_KEYMGMT_SELECT_OTHER_PARAMETERS) != 0)
407 ok = ok && ossl_ec_key_otherparams_fromdata(ec, params);
413 int ec_import(void *keydata, int selection, const OSSL_PARAM params[])
415 return common_import(keydata, selection, params, 0);
419 # ifndef OPENSSL_NO_SM2
421 int sm2_import(void *keydata, int selection, const OSSL_PARAM params[])
423 return common_import(keydata, selection, params, 1);
429 int ec_export(void *keydata, int selection, OSSL_CALLBACK *param_cb,
432 EC_KEY *ec = keydata;
433 OSSL_PARAM_BLD *tmpl = NULL;
434 OSSL_PARAM *params = NULL;
435 unsigned char *pub_key = NULL, *genbuf = NULL;
436 BN_CTX *bnctx = NULL;
439 if (!ossl_prov_is_running() || ec == NULL)
443 * In this implementation, we can export/import only keydata in the
444 * following combinations:
445 * - domain parameters (+optional other params)
446 * - public key with associated domain parameters (+optional other params)
447 * - private key with associated public key and domain parameters
448 * (+optional other params)
451 * - domain parameters must always be requested
452 * - private key must be requested alongside public key
453 * - other parameters are always optional
455 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) == 0)
457 if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0
458 && (selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) == 0)
460 if ((selection & OSSL_KEYMGMT_SELECT_OTHER_PARAMETERS) != 0
461 && (selection & OSSL_KEYMGMT_SELECT_KEYPAIR) == 0)
464 tmpl = OSSL_PARAM_BLD_new();
468 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0) {
469 bnctx = BN_CTX_new_ex(ossl_ec_key_get_libctx(ec));
475 ok = ok && ossl_ec_group_todata(EC_KEY_get0_group(ec), tmpl, NULL,
476 ossl_ec_key_get_libctx(ec),
477 ossl_ec_key_get0_propq(ec),
481 if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0) {
482 int include_private =
483 selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY ? 1 : 0;
485 ok = ok && key_to_params(ec, tmpl, NULL, include_private, &pub_key);
487 if ((selection & OSSL_KEYMGMT_SELECT_OTHER_PARAMETERS) != 0)
488 ok = ok && otherparams_to_params(ec, tmpl, NULL);
490 if (ok && (params = OSSL_PARAM_BLD_to_param(tmpl)) != NULL)
491 ok = param_cb(params, cbarg);
493 OSSL_PARAM_free(params);
494 OSSL_PARAM_BLD_free(tmpl);
495 OPENSSL_free(pub_key);
496 OPENSSL_free(genbuf);
502 /* IMEXPORT = IMPORT + EXPORT */
504 # define EC_IMEXPORTABLE_DOM_PARAMETERS \
505 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_GROUP_NAME, NULL, 0), \
506 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_ENCODING, NULL, 0), \
507 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT, NULL, 0),\
508 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_FIELD_TYPE, NULL, 0), \
509 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_P, NULL, 0), \
510 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_A, NULL, 0), \
511 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_B, NULL, 0), \
512 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_GENERATOR, NULL, 0), \
513 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_ORDER, NULL, 0), \
514 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_COFACTOR, NULL, 0), \
515 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_SEED, NULL, 0)
517 # define EC_IMEXPORTABLE_PUBLIC_KEY \
518 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_PUB_KEY, NULL, 0)
519 # define EC_IMEXPORTABLE_PRIVATE_KEY \
520 OSSL_PARAM_BN(OSSL_PKEY_PARAM_PRIV_KEY, NULL, 0)
521 # define EC_IMEXPORTABLE_OTHER_PARAMETERS \
522 OSSL_PARAM_int(OSSL_PKEY_PARAM_USE_COFACTOR_ECDH, NULL), \
523 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_INCLUDE_PUBLIC, NULL)
526 * Include all the possible combinations of OSSL_PARAM arrays for
527 * ec_imexport_types().
529 * They are in a separate file as it is ~100 lines of unreadable and
530 * uninteresting machine generated stuff.
532 #include "ec_kmgmt_imexport.inc"
535 const OSSL_PARAM *ec_imexport_types(int selection)
539 if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0)
541 if ((selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0)
543 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0)
545 if ((selection & OSSL_KEYMGMT_SELECT_OTHER_PARAMETERS) != 0)
547 return ec_types[type_select];
551 const OSSL_PARAM *ec_import_types(int selection)
553 return ec_imexport_types(selection);
557 const OSSL_PARAM *ec_export_types(int selection)
559 return ec_imexport_types(selection);
562 static int ec_get_ecm_params(const EC_GROUP *group, OSSL_PARAM params[])
564 #ifdef OPENSSL_NO_EC2M
568 unsigned int k1 = 0, k2 = 0, k3 = 0;
570 const char *basis_name = NULL;
571 int fid = EC_GROUP_get_field_type(group);
573 if (fid != NID_X9_62_characteristic_two_field)
576 basis_nid = EC_GROUP_get_basis_type(group);
577 if (basis_nid == NID_X9_62_tpBasis)
578 basis_name = SN_X9_62_tpBasis;
579 else if (basis_nid == NID_X9_62_ppBasis)
580 basis_name = SN_X9_62_ppBasis;
584 m = EC_GROUP_get_degree(group);
585 if (!ossl_param_build_set_int(NULL, params, OSSL_PKEY_PARAM_EC_CHAR2_M, m)
586 || !ossl_param_build_set_utf8_string(NULL, params,
587 OSSL_PKEY_PARAM_EC_CHAR2_TYPE,
591 if (basis_nid == NID_X9_62_tpBasis) {
592 if (!EC_GROUP_get_trinomial_basis(group, &k1)
593 || !ossl_param_build_set_int(NULL, params,
594 OSSL_PKEY_PARAM_EC_CHAR2_TP_BASIS,
598 if (!EC_GROUP_get_pentanomial_basis(group, &k1, &k2, &k3)
599 || !ossl_param_build_set_int(NULL, params,
600 OSSL_PKEY_PARAM_EC_CHAR2_PP_K1, (int)k1)
601 || !ossl_param_build_set_int(NULL, params,
602 OSSL_PKEY_PARAM_EC_CHAR2_PP_K2, (int)k2)
603 || !ossl_param_build_set_int(NULL, params,
604 OSSL_PKEY_PARAM_EC_CHAR2_PP_K3, (int)k3))
610 #endif /* OPENSSL_NO_EC2M */
614 int common_get_params(void *key, OSSL_PARAM params[], int sm2)
618 const EC_GROUP *ecg = NULL;
620 unsigned char *pub_key = NULL, *genbuf = NULL;
621 OSSL_LIB_CTX *libctx;
623 BN_CTX *bnctx = NULL;
625 ecg = EC_KEY_get0_group(eck);
629 libctx = ossl_ec_key_get_libctx(eck);
630 propq = ossl_ec_key_get0_propq(eck);
632 bnctx = BN_CTX_new_ex(libctx);
637 if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_MAX_SIZE)) != NULL
638 && !OSSL_PARAM_set_int(p, ECDSA_size(eck)))
640 if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_BITS)) != NULL
641 && !OSSL_PARAM_set_int(p, EC_GROUP_order_bits(ecg)))
643 if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_SECURITY_BITS)) != NULL) {
644 int ecbits, sec_bits;
646 ecbits = EC_GROUP_order_bits(ecg);
649 * The following estimates are based on the values published
650 * in Table 2 of "NIST Special Publication 800-57 Part 1 Revision 4"
651 * at http://dx.doi.org/10.6028/NIST.SP.800-57pt1r4 .
653 * Note that the above reference explicitly categorizes algorithms in a
654 * discrete set of values {80, 112, 128, 192, 256}, and that it is
655 * relevant only for NIST approved Elliptic Curves, while OpenSSL
656 * applies the same logic also to other curves.
658 * Classifications produced by other standardazing bodies might differ,
659 * so the results provided for "bits of security" by this provider are
660 * to be considered merely indicative, and it is the users'
661 * responsibility to compare these values against the normative
662 * references that may be relevant for their intent and purposes.
666 else if (ecbits >= 384)
668 else if (ecbits >= 256)
670 else if (ecbits >= 224)
672 else if (ecbits >= 160)
675 sec_bits = ecbits / 2;
677 if (!OSSL_PARAM_set_int(p, sec_bits))
682 if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_DEFAULT_DIGEST)) != NULL
683 && !OSSL_PARAM_set_utf8_string(p, EC_DEFAULT_MD))
686 if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_DEFAULT_DIGEST)) != NULL
687 && !OSSL_PARAM_set_utf8_string(p, SM2_DEFAULT_MD))
691 /* SM2 doesn't support this PARAM */
693 p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_USE_COFACTOR_ECDH);
695 int ecdh_cofactor_mode = 0;
698 (EC_KEY_get_flags(eck) & EC_FLAG_COFACTOR_ECDH) ? 1 : 0;
700 if (!OSSL_PARAM_set_int(p, ecdh_cofactor_mode))
704 if ((p = OSSL_PARAM_locate(params,
705 OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY)) != NULL) {
706 p->return_size = EC_POINT_point2oct(EC_KEY_get0_group(key),
707 EC_KEY_get0_public_key(key),
708 POINT_CONVERSION_UNCOMPRESSED,
709 p->data, p->return_size, bnctx);
710 if (p->return_size == 0)
714 ret = ec_get_ecm_params(ecg, params)
715 && ossl_ec_group_todata(ecg, NULL, params, libctx, propq, bnctx,
717 && key_to_params(eck, NULL, params, 1, &pub_key)
718 && otherparams_to_params(eck, NULL, params);
720 OPENSSL_free(genbuf);
721 OPENSSL_free(pub_key);
728 int ec_get_params(void *key, OSSL_PARAM params[])
730 return common_get_params(key, params, 0);
733 #ifndef OPENSSL_NO_EC2M
734 # define EC2M_GETTABLE_DOM_PARAMS \
735 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_CHAR2_M, NULL), \
736 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_CHAR2_TYPE, NULL, 0), \
737 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_CHAR2_TP_BASIS, NULL), \
738 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_CHAR2_PP_K1, NULL), \
739 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_CHAR2_PP_K2, NULL), \
740 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_CHAR2_PP_K3, NULL),
742 # define EC2M_GETTABLE_DOM_PARAMS
745 static const OSSL_PARAM ec_known_gettable_params[] = {
746 OSSL_PARAM_int(OSSL_PKEY_PARAM_BITS, NULL),
747 OSSL_PARAM_int(OSSL_PKEY_PARAM_SECURITY_BITS, NULL),
748 OSSL_PARAM_int(OSSL_PKEY_PARAM_MAX_SIZE, NULL),
749 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_DEFAULT_DIGEST, NULL, 0),
750 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY, NULL, 0),
751 EC_IMEXPORTABLE_DOM_PARAMETERS,
752 EC2M_GETTABLE_DOM_PARAMS
753 EC_IMEXPORTABLE_PUBLIC_KEY,
754 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_PUB_X, NULL, 0),
755 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_PUB_Y, NULL, 0),
756 EC_IMEXPORTABLE_PRIVATE_KEY,
757 EC_IMEXPORTABLE_OTHER_PARAMETERS,
762 const OSSL_PARAM *ec_gettable_params(void *provctx)
764 return ec_known_gettable_params;
767 static const OSSL_PARAM ec_known_settable_params[] = {
768 OSSL_PARAM_int(OSSL_PKEY_PARAM_USE_COFACTOR_ECDH, NULL),
769 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY, NULL, 0),
770 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_ENCODING, NULL, 0),
771 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT, NULL, 0),
772 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_SEED, NULL, 0),
773 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_INCLUDE_PUBLIC, NULL),
774 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_GROUP_CHECK_TYPE, NULL, 0),
779 const OSSL_PARAM *ec_settable_params(void *provctx)
781 return ec_known_settable_params;
785 int ec_set_params(void *key, const OSSL_PARAM params[])
796 if (!ossl_ec_group_set_params((EC_GROUP *)EC_KEY_get0_group(key), params))
799 p = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY);
801 BN_CTX *ctx = BN_CTX_new_ex(ossl_ec_key_get_libctx(key));
805 || p->data_type != OSSL_PARAM_OCTET_STRING
806 || !EC_KEY_oct2key(key, p->data, p->data_size, ctx))
813 return ossl_ec_key_otherparams_fromdata(eck, params);
817 # ifndef OPENSSL_NO_SM2
819 int sm2_get_params(void *key, OSSL_PARAM params[])
821 return common_get_params(key, params, 1);
824 static const OSSL_PARAM sm2_known_gettable_params[] = {
825 OSSL_PARAM_int(OSSL_PKEY_PARAM_BITS, NULL),
826 OSSL_PARAM_int(OSSL_PKEY_PARAM_SECURITY_BITS, NULL),
827 OSSL_PARAM_int(OSSL_PKEY_PARAM_MAX_SIZE, NULL),
828 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_DEFAULT_DIGEST, NULL, 0),
829 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY, NULL, 0),
830 EC_IMEXPORTABLE_DOM_PARAMETERS,
831 EC_IMEXPORTABLE_PUBLIC_KEY,
832 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_PUB_X, NULL, 0),
833 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_PUB_Y, NULL, 0),
834 EC_IMEXPORTABLE_PRIVATE_KEY,
839 const OSSL_PARAM *sm2_gettable_params(ossl_unused void *provctx)
841 return sm2_known_gettable_params;
844 static const OSSL_PARAM sm2_known_settable_params[] = {
845 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY, NULL, 0),
850 const OSSL_PARAM *sm2_settable_params(ossl_unused void *provctx)
852 return sm2_known_settable_params;
856 int sm2_validate(const void *keydata, int selection, int checktype)
858 const EC_KEY *eck = keydata;
862 if (!ossl_prov_is_running())
865 if ((selection & EC_POSSIBLE_SELECTIONS) == 0)
866 return 1; /* nothing to validate */
868 ctx = BN_CTX_new_ex(ossl_ec_key_get_libctx(eck));
872 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0)
873 ok = ok && EC_GROUP_check(EC_KEY_get0_group(eck), ctx);
875 if ((selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0) {
876 if (checktype == OSSL_KEYMGMT_VALIDATE_QUICK_CHECK)
877 ok = ok && ossl_ec_key_public_check_quick(eck, ctx);
879 ok = ok && ossl_ec_key_public_check(eck, ctx);
882 if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0)
883 ok = ok && ossl_sm2_key_private_check(eck);
885 if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) == OSSL_KEYMGMT_SELECT_KEYPAIR)
886 ok = ok && ossl_ec_key_pairwise_check(eck, ctx);
895 int ec_validate(const void *keydata, int selection, int checktype)
897 const EC_KEY *eck = keydata;
901 if (!ossl_prov_is_running())
904 if ((selection & EC_POSSIBLE_SELECTIONS) == 0)
905 return 1; /* nothing to validate */
907 ctx = BN_CTX_new_ex(ossl_ec_key_get_libctx(eck));
911 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0) {
912 int flags = EC_KEY_get_flags(eck);
914 if ((flags & EC_FLAG_CHECK_NAMED_GROUP) != 0)
915 ok = ok && EC_GROUP_check_named_curve(EC_KEY_get0_group(eck),
916 (flags & EC_FLAG_CHECK_NAMED_GROUP_NIST) != 0, ctx);
918 ok = ok && EC_GROUP_check(EC_KEY_get0_group(eck), ctx);
921 if ((selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0) {
922 if (checktype == OSSL_KEYMGMT_VALIDATE_QUICK_CHECK)
923 ok = ok && ossl_ec_key_public_check_quick(eck, ctx);
925 ok = ok && ossl_ec_key_public_check(eck, ctx);
928 if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0)
929 ok = ok && ossl_ec_key_private_check(eck);
931 if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) == OSSL_KEYMGMT_SELECT_KEYPAIR)
932 ok = ok && ossl_ec_key_pairwise_check(eck, ctx);
939 OSSL_LIB_CTX *libctx;
945 BIGNUM *p, *a, *b, *order, *cofactor;
946 unsigned char *gen, *seed;
947 size_t gen_len, seed_len;
953 static void *ec_gen_init(void *provctx, int selection,
954 const OSSL_PARAM params[])
956 OSSL_LIB_CTX *libctx = PROV_LIBCTX_OF(provctx);
957 struct ec_gen_ctx *gctx = NULL;
959 if (!ossl_prov_is_running() || (selection & (EC_POSSIBLE_SELECTIONS)) == 0)
962 if ((gctx = OPENSSL_zalloc(sizeof(*gctx))) != NULL) {
963 gctx->libctx = libctx;
964 gctx->selection = selection;
967 if (!ec_gen_set_params(gctx, params)) {
975 # ifndef OPENSSL_NO_SM2
976 static void *sm2_gen_init(void *provctx, int selection,
977 const OSSL_PARAM params[])
979 struct ec_gen_ctx *gctx = ec_gen_init(provctx, selection, params);
982 if (gctx->group_name != NULL)
984 if ((gctx->group_name = OPENSSL_strdup("sm2")) != NULL)
986 ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE);
987 ec_gen_cleanup(gctx);
994 static int ec_gen_set_group(void *genctx, const EC_GROUP *src)
996 struct ec_gen_ctx *gctx = genctx;
999 group = EC_GROUP_dup(src);
1000 if (group == NULL) {
1001 ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_CURVE);
1004 EC_GROUP_free(gctx->gen_group);
1005 gctx->gen_group = group;
1009 static int ec_gen_set_template(void *genctx, void *templ)
1011 struct ec_gen_ctx *gctx = genctx;
1013 const EC_GROUP *ec_group;
1015 if (!ossl_prov_is_running() || gctx == NULL || ec == NULL)
1017 if ((ec_group = EC_KEY_get0_group(ec)) == NULL)
1019 return ec_gen_set_group(gctx, ec_group);
1022 #define COPY_INT_PARAM(params, key, val) \
1023 p = OSSL_PARAM_locate_const(params, key); \
1024 if (p != NULL && !OSSL_PARAM_get_int(p, &val)) \
1027 #define COPY_UTF8_PARAM(params, key, val) \
1028 p = OSSL_PARAM_locate_const(params, key); \
1030 if (p->data_type != OSSL_PARAM_UTF8_STRING) \
1032 OPENSSL_free(val); \
1033 val = OPENSSL_strdup(p->data); \
1038 #define COPY_OCTET_PARAM(params, key, val, len) \
1039 p = OSSL_PARAM_locate_const(params, key); \
1041 if (p->data_type != OSSL_PARAM_OCTET_STRING) \
1043 OPENSSL_free(val); \
1044 len = p->data_size; \
1045 val = OPENSSL_memdup(p->data, p->data_size); \
1050 #define COPY_BN_PARAM(params, key, bn) \
1051 p = OSSL_PARAM_locate_const(params, key); \
1055 if (bn == NULL || !OSSL_PARAM_get_BN(p, &bn)) \
1059 static int ec_gen_set_params(void *genctx, const OSSL_PARAM params[])
1062 struct ec_gen_ctx *gctx = genctx;
1063 const OSSL_PARAM *p;
1064 EC_GROUP *group = NULL;
1066 COPY_INT_PARAM(params, OSSL_PKEY_PARAM_USE_COFACTOR_ECDH, gctx->ecdh_mode);
1068 COPY_UTF8_PARAM(params, OSSL_PKEY_PARAM_GROUP_NAME, gctx->group_name);
1069 COPY_UTF8_PARAM(params, OSSL_PKEY_PARAM_EC_FIELD_TYPE, gctx->field_type);
1070 COPY_UTF8_PARAM(params, OSSL_PKEY_PARAM_EC_ENCODING, gctx->encoding);
1071 COPY_UTF8_PARAM(params, OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT, gctx->pt_format);
1072 COPY_UTF8_PARAM(params, OSSL_PKEY_PARAM_EC_GROUP_CHECK_TYPE, gctx->group_check);
1074 COPY_BN_PARAM(params, OSSL_PKEY_PARAM_EC_P, gctx->p);
1075 COPY_BN_PARAM(params, OSSL_PKEY_PARAM_EC_A, gctx->a);
1076 COPY_BN_PARAM(params, OSSL_PKEY_PARAM_EC_B, gctx->b);
1077 COPY_BN_PARAM(params, OSSL_PKEY_PARAM_EC_ORDER, gctx->order);
1078 COPY_BN_PARAM(params, OSSL_PKEY_PARAM_EC_COFACTOR, gctx->cofactor);
1080 COPY_OCTET_PARAM(params, OSSL_PKEY_PARAM_EC_SEED, gctx->seed, gctx->seed_len);
1081 COPY_OCTET_PARAM(params, OSSL_PKEY_PARAM_EC_GENERATOR, gctx->gen,
1086 EC_GROUP_free(group);
1090 static int ec_gen_set_group_from_params(struct ec_gen_ctx *gctx)
1093 OSSL_PARAM_BLD *bld;
1094 OSSL_PARAM *params = NULL;
1095 EC_GROUP *group = NULL;
1097 bld = OSSL_PARAM_BLD_new();
1101 if (gctx->encoding != NULL
1102 && !OSSL_PARAM_BLD_push_utf8_string(bld, OSSL_PKEY_PARAM_EC_ENCODING,
1106 if (gctx->pt_format != NULL
1107 && !OSSL_PARAM_BLD_push_utf8_string(bld,
1108 OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT,
1109 gctx->pt_format, 0))
1112 if (gctx->group_name != NULL) {
1113 if (!OSSL_PARAM_BLD_push_utf8_string(bld, OSSL_PKEY_PARAM_GROUP_NAME,
1114 gctx->group_name, 0))
1116 /* Ignore any other parameters if there is a group name */
1118 } else if (gctx->field_type != NULL) {
1119 if (!OSSL_PARAM_BLD_push_utf8_string(bld, OSSL_PKEY_PARAM_EC_FIELD_TYPE,
1120 gctx->field_type, 0))
1128 || gctx->order == NULL
1129 || !OSSL_PARAM_BLD_push_BN(bld, OSSL_PKEY_PARAM_EC_P, gctx->p)
1130 || !OSSL_PARAM_BLD_push_BN(bld, OSSL_PKEY_PARAM_EC_A, gctx->a)
1131 || !OSSL_PARAM_BLD_push_BN(bld, OSSL_PKEY_PARAM_EC_B, gctx->b)
1132 || !OSSL_PARAM_BLD_push_BN(bld, OSSL_PKEY_PARAM_EC_ORDER, gctx->order))
1135 if (gctx->cofactor != NULL
1136 && !OSSL_PARAM_BLD_push_BN(bld, OSSL_PKEY_PARAM_EC_COFACTOR,
1140 if (gctx->seed != NULL
1141 && !OSSL_PARAM_BLD_push_octet_string(bld, OSSL_PKEY_PARAM_EC_SEED,
1142 gctx->seed, gctx->seed_len))
1145 if (gctx->gen == NULL
1146 || !OSSL_PARAM_BLD_push_octet_string(bld, OSSL_PKEY_PARAM_EC_GENERATOR,
1147 gctx->gen, gctx->gen_len))
1150 params = OSSL_PARAM_BLD_to_param(bld);
1153 group = EC_GROUP_new_from_params(params, gctx->libctx, NULL);
1157 EC_GROUP_free(gctx->gen_group);
1158 gctx->gen_group = group;
1162 OSSL_PARAM_free(params);
1163 OSSL_PARAM_BLD_free(bld);
1167 static const OSSL_PARAM *ec_gen_settable_params(ossl_unused void *genctx,
1168 ossl_unused void *provctx)
1170 static OSSL_PARAM settable[] = {
1171 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_GROUP_NAME, NULL, 0),
1172 OSSL_PARAM_int(OSSL_PKEY_PARAM_USE_COFACTOR_ECDH, NULL),
1173 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_ENCODING, NULL, 0),
1174 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT, NULL, 0),
1175 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_FIELD_TYPE, NULL, 0),
1176 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_P, NULL, 0),
1177 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_A, NULL, 0),
1178 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_B, NULL, 0),
1179 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_GENERATOR, NULL, 0),
1180 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_ORDER, NULL, 0),
1181 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_COFACTOR, NULL, 0),
1182 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_SEED, NULL, 0),
1189 static int ec_gen_assign_group(EC_KEY *ec, EC_GROUP *group)
1191 if (group == NULL) {
1192 ERR_raise(ERR_LIB_PROV, PROV_R_NO_PARAMETERS_SET);
1195 return EC_KEY_set_group(ec, group) > 0;
1199 * The callback arguments (osslcb & cbarg) are not used by EC_KEY generation
1201 static void *ec_gen(void *genctx, OSSL_CALLBACK *osslcb, void *cbarg)
1203 struct ec_gen_ctx *gctx = genctx;
1207 if (!ossl_prov_is_running()
1209 || (ec = EC_KEY_new_ex(gctx->libctx, NULL)) == NULL)
1212 if (gctx->gen_group == NULL) {
1213 if (!ec_gen_set_group_from_params(gctx))
1216 if (gctx->encoding != NULL) {
1217 int flags = ossl_ec_encoding_name2id(gctx->encoding);
1221 EC_GROUP_set_asn1_flag(gctx->gen_group, flags);
1223 if (gctx->pt_format != NULL) {
1224 int format = ossl_ec_pt_format_name2id(gctx->pt_format);
1228 EC_GROUP_set_point_conversion_form(gctx->gen_group, format);
1232 /* We must always assign a group, no matter what */
1233 ret = ec_gen_assign_group(ec, gctx->gen_group);
1235 /* Whether you want it or not, you get a keypair, not just one half */
1236 if ((gctx->selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0)
1237 ret = ret && EC_KEY_generate_key(ec);
1239 if (gctx->ecdh_mode != -1)
1240 ret = ret && ossl_ec_set_ecdh_cofactor_mode(ec, gctx->ecdh_mode);
1242 if (gctx->group_check != NULL)
1243 ret = ret && ossl_ec_set_check_group_type_from_name(ec, gctx->group_check);
1247 /* Something went wrong, throw the key away */
1253 # ifndef OPENSSL_NO_SM2
1255 * The callback arguments (osslcb & cbarg) are not used by EC_KEY generation
1257 static void *sm2_gen(void *genctx, OSSL_CALLBACK *osslcb, void *cbarg)
1259 struct ec_gen_ctx *gctx = genctx;
1264 || (ec = EC_KEY_new_ex(gctx->libctx, NULL)) == NULL)
1267 if (gctx->gen_group == NULL) {
1268 if (!ec_gen_set_group_from_params(gctx))
1271 if (gctx->encoding) {
1272 int flags = ossl_ec_encoding_name2id(gctx->encoding);
1276 EC_GROUP_set_asn1_flag(gctx->gen_group, flags);
1278 if (gctx->pt_format != NULL) {
1279 int format = ossl_ec_pt_format_name2id(gctx->pt_format);
1283 EC_GROUP_set_point_conversion_form(gctx->gen_group, format);
1287 /* We must always assign a group, no matter what */
1288 ret = ec_gen_assign_group(ec, gctx->gen_group);
1290 /* Whether you want it or not, you get a keypair, not just one half */
1291 if ((gctx->selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0)
1292 ret = ret && EC_KEY_generate_key(ec);
1297 /* Something went wrong, throw the key away */
1304 static void ec_gen_cleanup(void *genctx)
1306 struct ec_gen_ctx *gctx = genctx;
1311 EC_GROUP_free(gctx->gen_group);
1315 BN_free(gctx->order);
1316 BN_free(gctx->cofactor);
1317 OPENSSL_free(gctx->group_name);
1318 OPENSSL_free(gctx->field_type);
1319 OPENSSL_free(gctx->pt_format);
1320 OPENSSL_free(gctx->encoding);
1321 OPENSSL_free(gctx->seed);
1322 OPENSSL_free(gctx->gen);
1326 static void *common_load(const void *reference, size_t reference_sz,
1331 if (ossl_prov_is_running() && reference_sz == sizeof(ec)) {
1332 /* The contents of the reference is the address to our object */
1333 ec = *(EC_KEY **)reference;
1335 if (!common_check_sm2(ec, sm2_wanted))
1338 /* We grabbed, so we detach it */
1339 *(EC_KEY **)reference = NULL;
1345 static void *ec_load(const void *reference, size_t reference_sz)
1347 return common_load(reference, reference_sz, 0);
1351 # ifndef OPENSSL_NO_SM2
1352 static void *sm2_load(const void *reference, size_t reference_sz)
1354 return common_load(reference, reference_sz, 1);
1359 static void *ec_dup(const void *keydata_from, int selection)
1361 if (ossl_prov_is_running())
1362 return ossl_ec_key_dup(keydata_from, selection);
1366 const OSSL_DISPATCH ossl_ec_keymgmt_functions[] = {
1367 { OSSL_FUNC_KEYMGMT_NEW, (void (*)(void))ec_newdata },
1368 { OSSL_FUNC_KEYMGMT_GEN_INIT, (void (*)(void))ec_gen_init },
1369 { OSSL_FUNC_KEYMGMT_GEN_SET_TEMPLATE,
1370 (void (*)(void))ec_gen_set_template },
1371 { OSSL_FUNC_KEYMGMT_GEN_SET_PARAMS, (void (*)(void))ec_gen_set_params },
1372 { OSSL_FUNC_KEYMGMT_GEN_SETTABLE_PARAMS,
1373 (void (*)(void))ec_gen_settable_params },
1374 { OSSL_FUNC_KEYMGMT_GEN, (void (*)(void))ec_gen },
1375 { OSSL_FUNC_KEYMGMT_GEN_CLEANUP, (void (*)(void))ec_gen_cleanup },
1376 { OSSL_FUNC_KEYMGMT_LOAD, (void (*)(void))ec_load },
1377 { OSSL_FUNC_KEYMGMT_FREE, (void (*)(void))ec_freedata },
1378 { OSSL_FUNC_KEYMGMT_GET_PARAMS, (void (*) (void))ec_get_params },
1379 { OSSL_FUNC_KEYMGMT_GETTABLE_PARAMS, (void (*) (void))ec_gettable_params },
1380 { OSSL_FUNC_KEYMGMT_SET_PARAMS, (void (*) (void))ec_set_params },
1381 { OSSL_FUNC_KEYMGMT_SETTABLE_PARAMS, (void (*) (void))ec_settable_params },
1382 { OSSL_FUNC_KEYMGMT_HAS, (void (*)(void))ec_has },
1383 { OSSL_FUNC_KEYMGMT_MATCH, (void (*)(void))ec_match },
1384 { OSSL_FUNC_KEYMGMT_VALIDATE, (void (*)(void))ec_validate },
1385 { OSSL_FUNC_KEYMGMT_IMPORT, (void (*)(void))ec_import },
1386 { OSSL_FUNC_KEYMGMT_IMPORT_TYPES, (void (*)(void))ec_import_types },
1387 { OSSL_FUNC_KEYMGMT_EXPORT, (void (*)(void))ec_export },
1388 { OSSL_FUNC_KEYMGMT_EXPORT_TYPES, (void (*)(void))ec_export_types },
1389 { OSSL_FUNC_KEYMGMT_QUERY_OPERATION_NAME,
1390 (void (*)(void))ec_query_operation_name },
1391 { OSSL_FUNC_KEYMGMT_DUP, (void (*)(void))ec_dup },
1396 # ifndef OPENSSL_NO_SM2
1397 const OSSL_DISPATCH ossl_sm2_keymgmt_functions[] = {
1398 { OSSL_FUNC_KEYMGMT_NEW, (void (*)(void))sm2_newdata },
1399 { OSSL_FUNC_KEYMGMT_GEN_INIT, (void (*)(void))sm2_gen_init },
1400 { OSSL_FUNC_KEYMGMT_GEN_SET_TEMPLATE,
1401 (void (*)(void))ec_gen_set_template },
1402 { OSSL_FUNC_KEYMGMT_GEN_SET_PARAMS, (void (*)(void))ec_gen_set_params },
1403 { OSSL_FUNC_KEYMGMT_GEN_SETTABLE_PARAMS,
1404 (void (*)(void))ec_gen_settable_params },
1405 { OSSL_FUNC_KEYMGMT_GEN, (void (*)(void))sm2_gen },
1406 { OSSL_FUNC_KEYMGMT_GEN_CLEANUP, (void (*)(void))ec_gen_cleanup },
1407 { OSSL_FUNC_KEYMGMT_LOAD, (void (*)(void))sm2_load },
1408 { OSSL_FUNC_KEYMGMT_FREE, (void (*)(void))ec_freedata },
1409 { OSSL_FUNC_KEYMGMT_GET_PARAMS, (void (*) (void))sm2_get_params },
1410 { OSSL_FUNC_KEYMGMT_GETTABLE_PARAMS, (void (*) (void))sm2_gettable_params },
1411 { OSSL_FUNC_KEYMGMT_SET_PARAMS, (void (*) (void))ec_set_params },
1412 { OSSL_FUNC_KEYMGMT_SETTABLE_PARAMS, (void (*) (void))sm2_settable_params },
1413 { OSSL_FUNC_KEYMGMT_HAS, (void (*)(void))ec_has },
1414 { OSSL_FUNC_KEYMGMT_MATCH, (void (*)(void))ec_match },
1415 { OSSL_FUNC_KEYMGMT_VALIDATE, (void (*)(void))sm2_validate },
1416 { OSSL_FUNC_KEYMGMT_IMPORT, (void (*)(void))sm2_import },
1417 { OSSL_FUNC_KEYMGMT_IMPORT_TYPES, (void (*)(void))ec_import_types },
1418 { OSSL_FUNC_KEYMGMT_EXPORT, (void (*)(void))ec_export },
1419 { OSSL_FUNC_KEYMGMT_EXPORT_TYPES, (void (*)(void))ec_export_types },
1420 { OSSL_FUNC_KEYMGMT_QUERY_OPERATION_NAME,
1421 (void (*)(void))sm2_query_operation_name },
1422 { OSSL_FUNC_KEYMGMT_DUP, (void (*)(void))ec_dup },