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 "internal/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))
264 (EC_KEY_get_flags(ec) & EC_FLAG_COFACTOR_ECDH) ? 1 : 0;
265 return ossl_param_build_set_int(tmpl, params,
266 OSSL_PKEY_PARAM_USE_COFACTOR_ECDH,
271 void *ec_newdata(void *provctx)
273 if (!ossl_prov_is_running())
275 return EC_KEY_new_ex(PROV_LIBCTX_OF(provctx), NULL);
279 # ifndef OPENSSL_NO_SM2
281 void *sm2_newdata(void *provctx)
283 if (!ossl_prov_is_running())
285 return EC_KEY_new_by_curve_name_ex(PROV_LIBCTX_OF(provctx), NULL, NID_sm2);
291 void ec_freedata(void *keydata)
293 EC_KEY_free(keydata);
297 int ec_has(const void *keydata, int selection)
299 const EC_KEY *ec = keydata;
302 if (!ossl_prov_is_running() || ec == NULL)
304 if ((selection & EC_POSSIBLE_SELECTIONS) == 0)
305 return 1; /* the selection is not missing */
307 if ((selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0)
308 ok = ok && (EC_KEY_get0_public_key(ec) != NULL);
309 if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0)
310 ok = ok && (EC_KEY_get0_private_key(ec) != NULL);
311 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0)
312 ok = ok && (EC_KEY_get0_group(ec) != NULL);
314 * We consider OSSL_KEYMGMT_SELECT_OTHER_PARAMETERS to always be
315 * available, so no extra check is needed other than the previous one
316 * against EC_POSSIBLE_SELECTIONS.
321 static int ec_match(const void *keydata1, const void *keydata2, int selection)
323 const EC_KEY *ec1 = keydata1;
324 const EC_KEY *ec2 = keydata2;
325 const EC_GROUP *group_a = EC_KEY_get0_group(ec1);
326 const EC_GROUP *group_b = EC_KEY_get0_group(ec2);
330 if (!ossl_prov_is_running())
333 ctx = BN_CTX_new_ex(ossl_ec_key_get_libctx(ec1));
337 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0)
338 ok = ok && group_a != NULL && group_b != NULL
339 && EC_GROUP_cmp(group_a, group_b, ctx) == 0;
340 if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0) {
343 if ((selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0) {
344 const EC_POINT *pa = EC_KEY_get0_public_key(ec1);
345 const EC_POINT *pb = EC_KEY_get0_public_key(ec2);
347 if (pa != NULL && pb != NULL) {
348 ok = ok && EC_POINT_cmp(group_b, pa, pb, ctx) == 0;
353 && (selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0) {
354 const BIGNUM *pa = EC_KEY_get0_private_key(ec1);
355 const BIGNUM *pb = EC_KEY_get0_private_key(ec2);
357 if (pa != NULL && pb != NULL) {
358 ok = ok && BN_cmp(pa, pb) == 0;
362 ok = ok && key_checked;
368 static int common_check_sm2(const EC_KEY *ec, int sm2_wanted)
370 const EC_GROUP *ecg = NULL;
373 * sm2_wanted: import the keys or domparams only on SM2 Curve
374 * !sm2_wanted: import the keys or domparams only not on SM2 Curve
376 if ((ecg = EC_KEY_get0_group(ec)) == NULL
377 || (sm2_wanted ^ (EC_GROUP_get_curve_name(ecg) == NID_sm2)))
383 int common_import(void *keydata, int selection, const OSSL_PARAM params[],
386 EC_KEY *ec = keydata;
389 if (!ossl_prov_is_running() || ec == NULL)
393 * In this implementation, we can export/import only keydata in the
394 * following combinations:
395 * - domain parameters (+optional other params)
396 * - public key with associated domain parameters (+optional other params)
397 * - private key with associated domain parameters and optional public key
398 * (+optional other params)
401 * - domain parameters must always be requested
402 * - private key must be requested alongside public key
403 * - other parameters are always optional
405 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) == 0)
408 ok = ok && ossl_ec_group_fromdata(ec, params);
410 if (!common_check_sm2(ec, sm2_wanted))
413 if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0) {
414 int include_private =
415 selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY ? 1 : 0;
417 ok = ok && ossl_ec_key_fromdata(ec, params, include_private);
419 if ((selection & OSSL_KEYMGMT_SELECT_OTHER_PARAMETERS) != 0)
420 ok = ok && ossl_ec_key_otherparams_fromdata(ec, params);
426 int ec_import(void *keydata, int selection, const OSSL_PARAM params[])
428 return common_import(keydata, selection, params, 0);
432 # ifndef OPENSSL_NO_SM2
434 int sm2_import(void *keydata, int selection, const OSSL_PARAM params[])
436 return common_import(keydata, selection, params, 1);
442 int ec_export(void *keydata, int selection, OSSL_CALLBACK *param_cb,
445 EC_KEY *ec = keydata;
446 OSSL_PARAM_BLD *tmpl = NULL;
447 OSSL_PARAM *params = NULL;
448 unsigned char *pub_key = NULL, *genbuf = NULL;
449 BN_CTX *bnctx = NULL;
452 if (!ossl_prov_is_running() || ec == NULL)
456 * In this implementation, we can export/import only keydata in the
457 * following combinations:
458 * - domain parameters (+optional other params)
459 * - public key with associated domain parameters (+optional other params)
460 * - private key with associated public key and domain parameters
461 * (+optional other params)
464 * - domain parameters must always be requested
465 * - private key must be requested alongside public key
466 * - other parameters are always optional
468 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) == 0)
470 if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0
471 && (selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) == 0)
474 tmpl = OSSL_PARAM_BLD_new();
478 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0) {
479 bnctx = BN_CTX_new_ex(ossl_ec_key_get_libctx(ec));
485 ok = ok && ossl_ec_group_todata(EC_KEY_get0_group(ec), tmpl, NULL,
486 ossl_ec_key_get_libctx(ec),
487 ossl_ec_key_get0_propq(ec),
491 if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0) {
492 int include_private =
493 selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY ? 1 : 0;
495 ok = ok && key_to_params(ec, tmpl, NULL, include_private, &pub_key);
497 if ((selection & OSSL_KEYMGMT_SELECT_OTHER_PARAMETERS) != 0)
498 ok = ok && otherparams_to_params(ec, tmpl, NULL);
500 if (ok && (params = OSSL_PARAM_BLD_to_param(tmpl)) != NULL)
501 ok = param_cb(params, cbarg);
503 OSSL_PARAM_free(params);
504 OSSL_PARAM_BLD_free(tmpl);
505 OPENSSL_free(pub_key);
506 OPENSSL_free(genbuf);
512 /* IMEXPORT = IMPORT + EXPORT */
514 # define EC_IMEXPORTABLE_DOM_PARAMETERS \
515 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_GROUP_NAME, NULL, 0), \
516 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_ENCODING, NULL, 0), \
517 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT, NULL, 0),\
518 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_FIELD_TYPE, NULL, 0), \
519 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_P, NULL, 0), \
520 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_A, NULL, 0), \
521 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_B, NULL, 0), \
522 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_GENERATOR, NULL, 0), \
523 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_ORDER, NULL, 0), \
524 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_COFACTOR, NULL, 0), \
525 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_SEED, NULL, 0)
527 # define EC_IMEXPORTABLE_PUBLIC_KEY \
528 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_PUB_KEY, NULL, 0)
529 # define EC_IMEXPORTABLE_PRIVATE_KEY \
530 OSSL_PARAM_BN(OSSL_PKEY_PARAM_PRIV_KEY, NULL, 0)
531 # define EC_IMEXPORTABLE_OTHER_PARAMETERS \
532 OSSL_PARAM_int(OSSL_PKEY_PARAM_USE_COFACTOR_ECDH, NULL), \
533 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_INCLUDE_PUBLIC, NULL)
536 * Include all the possible combinations of OSSL_PARAM arrays for
537 * ec_imexport_types().
539 * They are in a separate file as it is ~100 lines of unreadable and
540 * uninteresting machine generated stuff.
542 #include "ec_kmgmt_imexport.inc"
545 const OSSL_PARAM *ec_imexport_types(int selection)
549 if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0)
551 if ((selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0)
553 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0)
555 if ((selection & OSSL_KEYMGMT_SELECT_OTHER_PARAMETERS) != 0)
557 return ec_types[type_select];
561 const OSSL_PARAM *ec_import_types(int selection)
563 return ec_imexport_types(selection);
567 const OSSL_PARAM *ec_export_types(int selection)
569 return ec_imexport_types(selection);
572 static int ec_get_ecm_params(const EC_GROUP *group, OSSL_PARAM params[])
574 #ifdef OPENSSL_NO_EC2M
578 unsigned int k1 = 0, k2 = 0, k3 = 0;
580 const char *basis_name = NULL;
581 int fid = EC_GROUP_get_field_type(group);
583 if (fid != NID_X9_62_characteristic_two_field)
586 basis_nid = EC_GROUP_get_basis_type(group);
587 if (basis_nid == NID_X9_62_tpBasis)
588 basis_name = SN_X9_62_tpBasis;
589 else if (basis_nid == NID_X9_62_ppBasis)
590 basis_name = SN_X9_62_ppBasis;
594 m = EC_GROUP_get_degree(group);
595 if (!ossl_param_build_set_int(NULL, params, OSSL_PKEY_PARAM_EC_CHAR2_M, m)
596 || !ossl_param_build_set_utf8_string(NULL, params,
597 OSSL_PKEY_PARAM_EC_CHAR2_TYPE,
601 if (basis_nid == NID_X9_62_tpBasis) {
602 if (!EC_GROUP_get_trinomial_basis(group, &k1)
603 || !ossl_param_build_set_int(NULL, params,
604 OSSL_PKEY_PARAM_EC_CHAR2_TP_BASIS,
608 if (!EC_GROUP_get_pentanomial_basis(group, &k1, &k2, &k3)
609 || !ossl_param_build_set_int(NULL, params,
610 OSSL_PKEY_PARAM_EC_CHAR2_PP_K1, (int)k1)
611 || !ossl_param_build_set_int(NULL, params,
612 OSSL_PKEY_PARAM_EC_CHAR2_PP_K2, (int)k2)
613 || !ossl_param_build_set_int(NULL, params,
614 OSSL_PKEY_PARAM_EC_CHAR2_PP_K3, (int)k3))
620 #endif /* OPENSSL_NO_EC2M */
624 int common_get_params(void *key, OSSL_PARAM params[], int sm2)
628 const EC_GROUP *ecg = NULL;
630 unsigned char *pub_key = NULL, *genbuf = NULL;
631 OSSL_LIB_CTX *libctx;
633 BN_CTX *bnctx = NULL;
635 ecg = EC_KEY_get0_group(eck);
639 libctx = ossl_ec_key_get_libctx(eck);
640 propq = ossl_ec_key_get0_propq(eck);
642 bnctx = BN_CTX_new_ex(libctx);
647 if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_MAX_SIZE)) != NULL
648 && !OSSL_PARAM_set_int(p, ECDSA_size(eck)))
650 if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_BITS)) != NULL
651 && !OSSL_PARAM_set_int(p, EC_GROUP_order_bits(ecg)))
653 if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_SECURITY_BITS)) != NULL) {
654 int ecbits, sec_bits;
656 ecbits = EC_GROUP_order_bits(ecg);
659 * The following estimates are based on the values published
660 * in Table 2 of "NIST Special Publication 800-57 Part 1 Revision 4"
661 * at http://dx.doi.org/10.6028/NIST.SP.800-57pt1r4 .
663 * Note that the above reference explicitly categorizes algorithms in a
664 * discrete set of values {80, 112, 128, 192, 256}, and that it is
665 * relevant only for NIST approved Elliptic Curves, while OpenSSL
666 * applies the same logic also to other curves.
668 * Classifications produced by other standardazing bodies might differ,
669 * so the results provided for "bits of security" by this provider are
670 * to be considered merely indicative, and it is the users'
671 * responsibility to compare these values against the normative
672 * references that may be relevant for their intent and purposes.
676 else if (ecbits >= 384)
678 else if (ecbits >= 256)
680 else if (ecbits >= 224)
682 else if (ecbits >= 160)
685 sec_bits = ecbits / 2;
687 if (!OSSL_PARAM_set_int(p, sec_bits))
691 if ((p = OSSL_PARAM_locate(params,
692 OSSL_PKEY_PARAM_EC_DECODED_FROM_EXPLICIT_PARAMS))
694 int explicitparams = EC_KEY_decoded_from_explicit_params(eck);
696 if (explicitparams < 0
697 || !OSSL_PARAM_set_int(p, explicitparams))
702 if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_DEFAULT_DIGEST)) != NULL
703 && !OSSL_PARAM_set_utf8_string(p, EC_DEFAULT_MD))
706 if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_DEFAULT_DIGEST)) != NULL
707 && !OSSL_PARAM_set_utf8_string(p, SM2_DEFAULT_MD))
711 /* SM2 doesn't support this PARAM */
713 p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_USE_COFACTOR_ECDH);
715 int ecdh_cofactor_mode = 0;
718 (EC_KEY_get_flags(eck) & EC_FLAG_COFACTOR_ECDH) ? 1 : 0;
720 if (!OSSL_PARAM_set_int(p, ecdh_cofactor_mode))
724 if ((p = OSSL_PARAM_locate(params,
725 OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY)) != NULL) {
726 p->return_size = EC_POINT_point2oct(EC_KEY_get0_group(key),
727 EC_KEY_get0_public_key(key),
728 POINT_CONVERSION_UNCOMPRESSED,
729 p->data, p->return_size, bnctx);
730 if (p->return_size == 0)
734 ret = ec_get_ecm_params(ecg, params)
735 && ossl_ec_group_todata(ecg, NULL, params, libctx, propq, bnctx,
737 && key_to_params(eck, NULL, params, 1, &pub_key)
738 && otherparams_to_params(eck, NULL, params);
740 OPENSSL_free(genbuf);
741 OPENSSL_free(pub_key);
748 int ec_get_params(void *key, OSSL_PARAM params[])
750 return common_get_params(key, params, 0);
753 #ifndef OPENSSL_NO_EC2M
754 # define EC2M_GETTABLE_DOM_PARAMS \
755 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_CHAR2_M, NULL), \
756 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_CHAR2_TYPE, NULL, 0), \
757 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_CHAR2_TP_BASIS, NULL), \
758 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_CHAR2_PP_K1, NULL), \
759 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_CHAR2_PP_K2, NULL), \
760 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_CHAR2_PP_K3, NULL),
762 # define EC2M_GETTABLE_DOM_PARAMS
765 static const OSSL_PARAM ec_known_gettable_params[] = {
766 OSSL_PARAM_int(OSSL_PKEY_PARAM_BITS, NULL),
767 OSSL_PARAM_int(OSSL_PKEY_PARAM_SECURITY_BITS, NULL),
768 OSSL_PARAM_int(OSSL_PKEY_PARAM_MAX_SIZE, NULL),
769 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_DEFAULT_DIGEST, NULL, 0),
770 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY, NULL, 0),
771 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_DECODED_FROM_EXPLICIT_PARAMS, NULL),
772 EC_IMEXPORTABLE_DOM_PARAMETERS,
773 EC2M_GETTABLE_DOM_PARAMS
774 EC_IMEXPORTABLE_PUBLIC_KEY,
775 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_PUB_X, NULL, 0),
776 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_PUB_Y, NULL, 0),
777 EC_IMEXPORTABLE_PRIVATE_KEY,
778 EC_IMEXPORTABLE_OTHER_PARAMETERS,
783 const OSSL_PARAM *ec_gettable_params(void *provctx)
785 return ec_known_gettable_params;
788 static const OSSL_PARAM ec_known_settable_params[] = {
789 OSSL_PARAM_int(OSSL_PKEY_PARAM_USE_COFACTOR_ECDH, NULL),
790 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY, NULL, 0),
791 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_ENCODING, NULL, 0),
792 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT, NULL, 0),
793 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_SEED, NULL, 0),
794 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_INCLUDE_PUBLIC, NULL),
795 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_GROUP_CHECK_TYPE, NULL, 0),
800 const OSSL_PARAM *ec_settable_params(void *provctx)
802 return ec_known_settable_params;
806 int ec_set_params(void *key, const OSSL_PARAM params[])
817 if (!ossl_ec_group_set_params((EC_GROUP *)EC_KEY_get0_group(key), params))
820 p = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY);
822 BN_CTX *ctx = BN_CTX_new_ex(ossl_ec_key_get_libctx(key));
826 || p->data_type != OSSL_PARAM_OCTET_STRING
827 || !EC_KEY_oct2key(key, p->data, p->data_size, ctx))
834 return ossl_ec_key_otherparams_fromdata(eck, params);
838 # ifndef OPENSSL_NO_SM2
840 int sm2_get_params(void *key, OSSL_PARAM params[])
842 return common_get_params(key, params, 1);
845 static const OSSL_PARAM sm2_known_gettable_params[] = {
846 OSSL_PARAM_int(OSSL_PKEY_PARAM_BITS, NULL),
847 OSSL_PARAM_int(OSSL_PKEY_PARAM_SECURITY_BITS, NULL),
848 OSSL_PARAM_int(OSSL_PKEY_PARAM_MAX_SIZE, NULL),
849 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_DEFAULT_DIGEST, NULL, 0),
850 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY, NULL, 0),
851 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_DECODED_FROM_EXPLICIT_PARAMS, NULL),
852 EC_IMEXPORTABLE_DOM_PARAMETERS,
853 EC_IMEXPORTABLE_PUBLIC_KEY,
854 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_PUB_X, NULL, 0),
855 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_PUB_Y, NULL, 0),
856 EC_IMEXPORTABLE_PRIVATE_KEY,
861 const OSSL_PARAM *sm2_gettable_params(ossl_unused void *provctx)
863 return sm2_known_gettable_params;
866 static const OSSL_PARAM sm2_known_settable_params[] = {
867 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY, NULL, 0),
872 const OSSL_PARAM *sm2_settable_params(ossl_unused void *provctx)
874 return sm2_known_settable_params;
878 int sm2_validate(const void *keydata, int selection, int checktype)
880 const EC_KEY *eck = keydata;
884 if (!ossl_prov_is_running())
887 if ((selection & EC_POSSIBLE_SELECTIONS) == 0)
888 return 1; /* nothing to validate */
890 ctx = BN_CTX_new_ex(ossl_ec_key_get_libctx(eck));
894 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0)
895 ok = ok && EC_GROUP_check(EC_KEY_get0_group(eck), ctx);
897 if ((selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0) {
898 if (checktype == OSSL_KEYMGMT_VALIDATE_QUICK_CHECK)
899 ok = ok && ossl_ec_key_public_check_quick(eck, ctx);
901 ok = ok && ossl_ec_key_public_check(eck, ctx);
904 if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0)
905 ok = ok && ossl_sm2_key_private_check(eck);
907 if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) == OSSL_KEYMGMT_SELECT_KEYPAIR)
908 ok = ok && ossl_ec_key_pairwise_check(eck, ctx);
917 int ec_validate(const void *keydata, int selection, int checktype)
919 const EC_KEY *eck = keydata;
923 if (!ossl_prov_is_running())
926 if ((selection & EC_POSSIBLE_SELECTIONS) == 0)
927 return 1; /* nothing to validate */
929 ctx = BN_CTX_new_ex(ossl_ec_key_get_libctx(eck));
933 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0) {
934 int flags = EC_KEY_get_flags(eck);
936 if ((flags & EC_FLAG_CHECK_NAMED_GROUP) != 0)
937 ok = ok && EC_GROUP_check_named_curve(EC_KEY_get0_group(eck),
938 (flags & EC_FLAG_CHECK_NAMED_GROUP_NIST) != 0, ctx);
940 ok = ok && EC_GROUP_check(EC_KEY_get0_group(eck), ctx);
943 if ((selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0) {
944 if (checktype == OSSL_KEYMGMT_VALIDATE_QUICK_CHECK)
945 ok = ok && ossl_ec_key_public_check_quick(eck, ctx);
947 ok = ok && ossl_ec_key_public_check(eck, ctx);
950 if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0)
951 ok = ok && ossl_ec_key_private_check(eck);
953 if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) == OSSL_KEYMGMT_SELECT_KEYPAIR)
954 ok = ok && ossl_ec_key_pairwise_check(eck, ctx);
961 OSSL_LIB_CTX *libctx;
967 BIGNUM *p, *a, *b, *order, *cofactor;
968 unsigned char *gen, *seed;
969 size_t gen_len, seed_len;
975 static void *ec_gen_init(void *provctx, int selection,
976 const OSSL_PARAM params[])
978 OSSL_LIB_CTX *libctx = PROV_LIBCTX_OF(provctx);
979 struct ec_gen_ctx *gctx = NULL;
981 if (!ossl_prov_is_running() || (selection & (EC_POSSIBLE_SELECTIONS)) == 0)
984 if ((gctx = OPENSSL_zalloc(sizeof(*gctx))) != NULL) {
985 gctx->libctx = libctx;
986 gctx->selection = selection;
989 if (!ec_gen_set_params(gctx, params)) {
997 # ifndef OPENSSL_NO_SM2
998 static void *sm2_gen_init(void *provctx, int selection,
999 const OSSL_PARAM params[])
1001 struct ec_gen_ctx *gctx = ec_gen_init(provctx, selection, params);
1004 if (gctx->group_name != NULL)
1006 if ((gctx->group_name = OPENSSL_strdup("sm2")) != NULL)
1008 ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE);
1009 ec_gen_cleanup(gctx);
1016 static int ec_gen_set_group(void *genctx, const EC_GROUP *src)
1018 struct ec_gen_ctx *gctx = genctx;
1021 group = EC_GROUP_dup(src);
1022 if (group == NULL) {
1023 ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_CURVE);
1026 EC_GROUP_free(gctx->gen_group);
1027 gctx->gen_group = group;
1031 static int ec_gen_set_template(void *genctx, void *templ)
1033 struct ec_gen_ctx *gctx = genctx;
1035 const EC_GROUP *ec_group;
1037 if (!ossl_prov_is_running() || gctx == NULL || ec == NULL)
1039 if ((ec_group = EC_KEY_get0_group(ec)) == NULL)
1041 return ec_gen_set_group(gctx, ec_group);
1044 #define COPY_INT_PARAM(params, key, val) \
1045 p = OSSL_PARAM_locate_const(params, key); \
1046 if (p != NULL && !OSSL_PARAM_get_int(p, &val)) \
1049 #define COPY_UTF8_PARAM(params, key, val) \
1050 p = OSSL_PARAM_locate_const(params, key); \
1052 if (p->data_type != OSSL_PARAM_UTF8_STRING) \
1054 OPENSSL_free(val); \
1055 val = OPENSSL_strdup(p->data); \
1060 #define COPY_OCTET_PARAM(params, key, val, len) \
1061 p = OSSL_PARAM_locate_const(params, key); \
1063 if (p->data_type != OSSL_PARAM_OCTET_STRING) \
1065 OPENSSL_free(val); \
1066 len = p->data_size; \
1067 val = OPENSSL_memdup(p->data, p->data_size); \
1072 #define COPY_BN_PARAM(params, key, bn) \
1073 p = OSSL_PARAM_locate_const(params, key); \
1077 if (bn == NULL || !OSSL_PARAM_get_BN(p, &bn)) \
1081 static int ec_gen_set_params(void *genctx, const OSSL_PARAM params[])
1084 struct ec_gen_ctx *gctx = genctx;
1085 const OSSL_PARAM *p;
1086 EC_GROUP *group = NULL;
1088 COPY_INT_PARAM(params, OSSL_PKEY_PARAM_USE_COFACTOR_ECDH, gctx->ecdh_mode);
1090 COPY_UTF8_PARAM(params, OSSL_PKEY_PARAM_GROUP_NAME, gctx->group_name);
1091 COPY_UTF8_PARAM(params, OSSL_PKEY_PARAM_EC_FIELD_TYPE, gctx->field_type);
1092 COPY_UTF8_PARAM(params, OSSL_PKEY_PARAM_EC_ENCODING, gctx->encoding);
1093 COPY_UTF8_PARAM(params, OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT, gctx->pt_format);
1094 COPY_UTF8_PARAM(params, OSSL_PKEY_PARAM_EC_GROUP_CHECK_TYPE, gctx->group_check);
1096 COPY_BN_PARAM(params, OSSL_PKEY_PARAM_EC_P, gctx->p);
1097 COPY_BN_PARAM(params, OSSL_PKEY_PARAM_EC_A, gctx->a);
1098 COPY_BN_PARAM(params, OSSL_PKEY_PARAM_EC_B, gctx->b);
1099 COPY_BN_PARAM(params, OSSL_PKEY_PARAM_EC_ORDER, gctx->order);
1100 COPY_BN_PARAM(params, OSSL_PKEY_PARAM_EC_COFACTOR, gctx->cofactor);
1102 COPY_OCTET_PARAM(params, OSSL_PKEY_PARAM_EC_SEED, gctx->seed, gctx->seed_len);
1103 COPY_OCTET_PARAM(params, OSSL_PKEY_PARAM_EC_GENERATOR, gctx->gen,
1108 EC_GROUP_free(group);
1112 static int ec_gen_set_group_from_params(struct ec_gen_ctx *gctx)
1115 OSSL_PARAM_BLD *bld;
1116 OSSL_PARAM *params = NULL;
1117 EC_GROUP *group = NULL;
1119 bld = OSSL_PARAM_BLD_new();
1123 if (gctx->encoding != NULL
1124 && !OSSL_PARAM_BLD_push_utf8_string(bld, OSSL_PKEY_PARAM_EC_ENCODING,
1128 if (gctx->pt_format != NULL
1129 && !OSSL_PARAM_BLD_push_utf8_string(bld,
1130 OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT,
1131 gctx->pt_format, 0))
1134 if (gctx->group_name != NULL) {
1135 if (!OSSL_PARAM_BLD_push_utf8_string(bld, OSSL_PKEY_PARAM_GROUP_NAME,
1136 gctx->group_name, 0))
1138 /* Ignore any other parameters if there is a group name */
1140 } else if (gctx->field_type != NULL) {
1141 if (!OSSL_PARAM_BLD_push_utf8_string(bld, OSSL_PKEY_PARAM_EC_FIELD_TYPE,
1142 gctx->field_type, 0))
1150 || gctx->order == NULL
1151 || !OSSL_PARAM_BLD_push_BN(bld, OSSL_PKEY_PARAM_EC_P, gctx->p)
1152 || !OSSL_PARAM_BLD_push_BN(bld, OSSL_PKEY_PARAM_EC_A, gctx->a)
1153 || !OSSL_PARAM_BLD_push_BN(bld, OSSL_PKEY_PARAM_EC_B, gctx->b)
1154 || !OSSL_PARAM_BLD_push_BN(bld, OSSL_PKEY_PARAM_EC_ORDER, gctx->order))
1157 if (gctx->cofactor != NULL
1158 && !OSSL_PARAM_BLD_push_BN(bld, OSSL_PKEY_PARAM_EC_COFACTOR,
1162 if (gctx->seed != NULL
1163 && !OSSL_PARAM_BLD_push_octet_string(bld, OSSL_PKEY_PARAM_EC_SEED,
1164 gctx->seed, gctx->seed_len))
1167 if (gctx->gen == NULL
1168 || !OSSL_PARAM_BLD_push_octet_string(bld, OSSL_PKEY_PARAM_EC_GENERATOR,
1169 gctx->gen, gctx->gen_len))
1172 params = OSSL_PARAM_BLD_to_param(bld);
1175 group = EC_GROUP_new_from_params(params, gctx->libctx, NULL);
1179 EC_GROUP_free(gctx->gen_group);
1180 gctx->gen_group = group;
1184 OSSL_PARAM_free(params);
1185 OSSL_PARAM_BLD_free(bld);
1189 static const OSSL_PARAM *ec_gen_settable_params(ossl_unused void *genctx,
1190 ossl_unused void *provctx)
1192 static OSSL_PARAM settable[] = {
1193 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_GROUP_NAME, NULL, 0),
1194 OSSL_PARAM_int(OSSL_PKEY_PARAM_USE_COFACTOR_ECDH, NULL),
1195 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_ENCODING, NULL, 0),
1196 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT, NULL, 0),
1197 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_FIELD_TYPE, NULL, 0),
1198 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_P, NULL, 0),
1199 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_A, NULL, 0),
1200 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_B, NULL, 0),
1201 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_GENERATOR, NULL, 0),
1202 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_ORDER, NULL, 0),
1203 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_COFACTOR, NULL, 0),
1204 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_SEED, NULL, 0),
1211 static int ec_gen_assign_group(EC_KEY *ec, EC_GROUP *group)
1213 if (group == NULL) {
1214 ERR_raise(ERR_LIB_PROV, PROV_R_NO_PARAMETERS_SET);
1217 return EC_KEY_set_group(ec, group) > 0;
1221 * The callback arguments (osslcb & cbarg) are not used by EC_KEY generation
1223 static void *ec_gen(void *genctx, OSSL_CALLBACK *osslcb, void *cbarg)
1225 struct ec_gen_ctx *gctx = genctx;
1229 if (!ossl_prov_is_running()
1231 || (ec = EC_KEY_new_ex(gctx->libctx, NULL)) == NULL)
1234 if (gctx->gen_group == NULL) {
1235 if (!ec_gen_set_group_from_params(gctx))
1238 if (gctx->encoding != NULL) {
1239 int flags = ossl_ec_encoding_name2id(gctx->encoding);
1243 EC_GROUP_set_asn1_flag(gctx->gen_group, flags);
1245 if (gctx->pt_format != NULL) {
1246 int format = ossl_ec_pt_format_name2id(gctx->pt_format);
1250 EC_GROUP_set_point_conversion_form(gctx->gen_group, format);
1254 /* We must always assign a group, no matter what */
1255 ret = ec_gen_assign_group(ec, gctx->gen_group);
1257 /* Whether you want it or not, you get a keypair, not just one half */
1258 if ((gctx->selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0)
1259 ret = ret && EC_KEY_generate_key(ec);
1261 if (gctx->ecdh_mode != -1)
1262 ret = ret && ossl_ec_set_ecdh_cofactor_mode(ec, gctx->ecdh_mode);
1264 if (gctx->group_check != NULL)
1265 ret = ret && ossl_ec_set_check_group_type_from_name(ec, gctx->group_check);
1269 /* Something went wrong, throw the key away */
1275 # ifndef OPENSSL_NO_SM2
1277 * The callback arguments (osslcb & cbarg) are not used by EC_KEY generation
1279 static void *sm2_gen(void *genctx, OSSL_CALLBACK *osslcb, void *cbarg)
1281 struct ec_gen_ctx *gctx = genctx;
1286 || (ec = EC_KEY_new_ex(gctx->libctx, NULL)) == NULL)
1289 if (gctx->gen_group == NULL) {
1290 if (!ec_gen_set_group_from_params(gctx))
1293 if (gctx->encoding) {
1294 int flags = ossl_ec_encoding_name2id(gctx->encoding);
1298 EC_GROUP_set_asn1_flag(gctx->gen_group, flags);
1300 if (gctx->pt_format != NULL) {
1301 int format = ossl_ec_pt_format_name2id(gctx->pt_format);
1305 EC_GROUP_set_point_conversion_form(gctx->gen_group, format);
1309 /* We must always assign a group, no matter what */
1310 ret = ec_gen_assign_group(ec, gctx->gen_group);
1312 /* Whether you want it or not, you get a keypair, not just one half */
1313 if ((gctx->selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0)
1314 ret = ret && EC_KEY_generate_key(ec);
1319 /* Something went wrong, throw the key away */
1326 static void ec_gen_cleanup(void *genctx)
1328 struct ec_gen_ctx *gctx = genctx;
1333 EC_GROUP_free(gctx->gen_group);
1337 BN_free(gctx->order);
1338 BN_free(gctx->cofactor);
1339 OPENSSL_free(gctx->group_name);
1340 OPENSSL_free(gctx->field_type);
1341 OPENSSL_free(gctx->pt_format);
1342 OPENSSL_free(gctx->encoding);
1343 OPENSSL_free(gctx->seed);
1344 OPENSSL_free(gctx->gen);
1348 static void *common_load(const void *reference, size_t reference_sz,
1353 if (ossl_prov_is_running() && reference_sz == sizeof(ec)) {
1354 /* The contents of the reference is the address to our object */
1355 ec = *(EC_KEY **)reference;
1357 if (!common_check_sm2(ec, sm2_wanted))
1360 /* We grabbed, so we detach it */
1361 *(EC_KEY **)reference = NULL;
1367 static void *ec_load(const void *reference, size_t reference_sz)
1369 return common_load(reference, reference_sz, 0);
1373 # ifndef OPENSSL_NO_SM2
1374 static void *sm2_load(const void *reference, size_t reference_sz)
1376 return common_load(reference, reference_sz, 1);
1381 static void *ec_dup(const void *keydata_from, int selection)
1383 if (ossl_prov_is_running())
1384 return ossl_ec_key_dup(keydata_from, selection);
1388 const OSSL_DISPATCH ossl_ec_keymgmt_functions[] = {
1389 { OSSL_FUNC_KEYMGMT_NEW, (void (*)(void))ec_newdata },
1390 { OSSL_FUNC_KEYMGMT_GEN_INIT, (void (*)(void))ec_gen_init },
1391 { OSSL_FUNC_KEYMGMT_GEN_SET_TEMPLATE,
1392 (void (*)(void))ec_gen_set_template },
1393 { OSSL_FUNC_KEYMGMT_GEN_SET_PARAMS, (void (*)(void))ec_gen_set_params },
1394 { OSSL_FUNC_KEYMGMT_GEN_SETTABLE_PARAMS,
1395 (void (*)(void))ec_gen_settable_params },
1396 { OSSL_FUNC_KEYMGMT_GEN, (void (*)(void))ec_gen },
1397 { OSSL_FUNC_KEYMGMT_GEN_CLEANUP, (void (*)(void))ec_gen_cleanup },
1398 { OSSL_FUNC_KEYMGMT_LOAD, (void (*)(void))ec_load },
1399 { OSSL_FUNC_KEYMGMT_FREE, (void (*)(void))ec_freedata },
1400 { OSSL_FUNC_KEYMGMT_GET_PARAMS, (void (*) (void))ec_get_params },
1401 { OSSL_FUNC_KEYMGMT_GETTABLE_PARAMS, (void (*) (void))ec_gettable_params },
1402 { OSSL_FUNC_KEYMGMT_SET_PARAMS, (void (*) (void))ec_set_params },
1403 { OSSL_FUNC_KEYMGMT_SETTABLE_PARAMS, (void (*) (void))ec_settable_params },
1404 { OSSL_FUNC_KEYMGMT_HAS, (void (*)(void))ec_has },
1405 { OSSL_FUNC_KEYMGMT_MATCH, (void (*)(void))ec_match },
1406 { OSSL_FUNC_KEYMGMT_VALIDATE, (void (*)(void))ec_validate },
1407 { OSSL_FUNC_KEYMGMT_IMPORT, (void (*)(void))ec_import },
1408 { OSSL_FUNC_KEYMGMT_IMPORT_TYPES, (void (*)(void))ec_import_types },
1409 { OSSL_FUNC_KEYMGMT_EXPORT, (void (*)(void))ec_export },
1410 { OSSL_FUNC_KEYMGMT_EXPORT_TYPES, (void (*)(void))ec_export_types },
1411 { OSSL_FUNC_KEYMGMT_QUERY_OPERATION_NAME,
1412 (void (*)(void))ec_query_operation_name },
1413 { OSSL_FUNC_KEYMGMT_DUP, (void (*)(void))ec_dup },
1418 # ifndef OPENSSL_NO_SM2
1419 const OSSL_DISPATCH ossl_sm2_keymgmt_functions[] = {
1420 { OSSL_FUNC_KEYMGMT_NEW, (void (*)(void))sm2_newdata },
1421 { OSSL_FUNC_KEYMGMT_GEN_INIT, (void (*)(void))sm2_gen_init },
1422 { OSSL_FUNC_KEYMGMT_GEN_SET_TEMPLATE,
1423 (void (*)(void))ec_gen_set_template },
1424 { OSSL_FUNC_KEYMGMT_GEN_SET_PARAMS, (void (*)(void))ec_gen_set_params },
1425 { OSSL_FUNC_KEYMGMT_GEN_SETTABLE_PARAMS,
1426 (void (*)(void))ec_gen_settable_params },
1427 { OSSL_FUNC_KEYMGMT_GEN, (void (*)(void))sm2_gen },
1428 { OSSL_FUNC_KEYMGMT_GEN_CLEANUP, (void (*)(void))ec_gen_cleanup },
1429 { OSSL_FUNC_KEYMGMT_LOAD, (void (*)(void))sm2_load },
1430 { OSSL_FUNC_KEYMGMT_FREE, (void (*)(void))ec_freedata },
1431 { OSSL_FUNC_KEYMGMT_GET_PARAMS, (void (*) (void))sm2_get_params },
1432 { OSSL_FUNC_KEYMGMT_GETTABLE_PARAMS, (void (*) (void))sm2_gettable_params },
1433 { OSSL_FUNC_KEYMGMT_SET_PARAMS, (void (*) (void))ec_set_params },
1434 { OSSL_FUNC_KEYMGMT_SETTABLE_PARAMS, (void (*) (void))sm2_settable_params },
1435 { OSSL_FUNC_KEYMGMT_HAS, (void (*)(void))ec_has },
1436 { OSSL_FUNC_KEYMGMT_MATCH, (void (*)(void))ec_match },
1437 { OSSL_FUNC_KEYMGMT_VALIDATE, (void (*)(void))sm2_validate },
1438 { OSSL_FUNC_KEYMGMT_IMPORT, (void (*)(void))sm2_import },
1439 { OSSL_FUNC_KEYMGMT_IMPORT_TYPES, (void (*)(void))ec_import_types },
1440 { OSSL_FUNC_KEYMGMT_EXPORT, (void (*)(void))ec_export },
1441 { OSSL_FUNC_KEYMGMT_EXPORT_TYPES, (void (*)(void))ec_export_types },
1442 { OSSL_FUNC_KEYMGMT_QUERY_OPERATION_NAME,
1443 (void (*)(void))sm2_query_operation_name },
1444 { OSSL_FUNC_KEYMGMT_DUP, (void (*)(void))ec_dup },