2 * Copyright 2020 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
11 * ECDH/ECDSA low level APIs are deprecated for public use, but still ok for
14 #include "internal/deprecated.h"
16 #include <openssl/core_numbers.h>
17 #include <openssl/core_names.h>
18 #include <openssl/bn.h>
19 #include <openssl/err.h>
20 #include <openssl/objects.h>
21 #include "crypto/bn.h"
22 #include "crypto/ec.h"
23 #include "prov/implementations.h"
24 #include "prov/providercommon.h"
25 #include "prov/providercommonerr.h"
26 #include "prov/provider_ctx.h"
27 #include "internal/param_build_set.h"
29 static OSSL_OP_keymgmt_new_fn ec_newdata;
30 static OSSL_OP_keymgmt_gen_init_fn ec_gen_init;
31 static OSSL_OP_keymgmt_gen_set_template_fn ec_gen_set_template;
32 static OSSL_OP_keymgmt_gen_set_params_fn ec_gen_set_params;
33 static OSSL_OP_keymgmt_gen_settable_params_fn ec_gen_settable_params;
34 static OSSL_OP_keymgmt_gen_get_params_fn ec_gen_get_params;
35 static OSSL_OP_keymgmt_gen_gettable_params_fn ec_gen_gettable_params;
36 static OSSL_OP_keymgmt_gen_fn ec_gen;
37 static OSSL_OP_keymgmt_gen_cleanup_fn ec_gen_cleanup;
38 static OSSL_OP_keymgmt_free_fn ec_freedata;
39 static OSSL_OP_keymgmt_get_params_fn ec_get_params;
40 static OSSL_OP_keymgmt_gettable_params_fn ec_gettable_params;
41 static OSSL_OP_keymgmt_set_params_fn ec_set_params;
42 static OSSL_OP_keymgmt_settable_params_fn ec_settable_params;
43 static OSSL_OP_keymgmt_has_fn ec_has;
44 static OSSL_OP_keymgmt_match_fn ec_match;
45 static OSSL_OP_keymgmt_validate_fn ec_validate;
46 static OSSL_OP_keymgmt_import_fn ec_import;
47 static OSSL_OP_keymgmt_import_types_fn ec_import_types;
48 static OSSL_OP_keymgmt_export_fn ec_export;
49 static OSSL_OP_keymgmt_export_types_fn ec_export_types;
50 static OSSL_OP_keymgmt_query_operation_name_fn ec_query_operation_name;
52 #define EC_POSSIBLE_SELECTIONS \
53 (OSSL_KEYMGMT_SELECT_KEYPAIR | OSSL_KEYMGMT_SELECT_ALL_PARAMETERS)
56 const char *ec_query_operation_name(int operation_id)
58 switch (operation_id) {
61 case OSSL_OP_SIGNATURE:
68 int domparams_to_params(const EC_KEY *ec, OSSL_PARAM_BLD *tmpl,
77 ecg = EC_KEY_get0_group(ec);
81 curve_nid = EC_GROUP_get_curve_name(ecg);
83 if (curve_nid == NID_undef) {
84 /* TODO(3.0): should we support explicit parameters curves? */
88 const char *curve_name = NULL;
90 if ((curve_name = ec_curve_nid2name(curve_nid)) == NULL)
92 if (!ossl_param_build_set_utf8_string(tmpl, params,
93 OSSL_PKEY_PARAM_EC_NAME,
103 * Callers of key_to_params MUST make sure that domparams_to_params is also
106 * This function only exports the bare keypair, domain parameters and other
107 * parameters are exported separately.
110 int key_to_params(const EC_KEY *eckey, OSSL_PARAM_BLD *tmpl,
111 OSSL_PARAM params[], int include_private,
112 unsigned char **pub_key)
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;
121 || (ecg = EC_KEY_get0_group(eckey)) == NULL)
124 priv_key = EC_KEY_get0_private_key(eckey);
125 pub_point = EC_KEY_get0_public_key(eckey);
127 if (pub_point != NULL) {
128 /* convert pub_point to a octet string according to the SECG standard */
129 if ((pub_key_len = EC_POINT_point2buf(ecg, pub_point,
130 POINT_CONVERSION_COMPRESSED,
132 || !ossl_param_build_set_octet_string(tmpl, params,
133 OSSL_PKEY_PARAM_PUB_KEY,
134 *pub_key, pub_key_len))
138 if (priv_key != NULL && include_private) {
143 * Key import/export should never leak the bit length of the secret
146 * For this reason, on export we use padded BIGNUMs with fixed length.
148 * When importing we also should make sure that, even if short lived,
149 * the newly created BIGNUM is marked with the BN_FLG_CONSTTIME flag as
150 * soon as possible, so that any processing of this BIGNUM might opt for
151 * constant time implementations in the backend.
153 * Setting the BN_FLG_CONSTTIME flag alone is never enough, we also have
154 * to preallocate the BIGNUM internal buffer to a fixed public size big
155 * enough that operations performed during the processing never trigger
156 * a realloc which would leak the size of the scalar through memory
162 * The order of the large prime subgroup of the curve is our choice for
163 * a fixed public size, as that is generally the upper bound for
164 * generating a private key in EC cryptosystems and should fit all valid
167 * For padding on export we just use the bit length of the order
168 * converted to bytes (rounding up).
170 * For preallocating the BIGNUM storage we look at the number of "words"
171 * required for the internal representation of the order, and we
172 * preallocate 2 extra "words" in case any of the subsequent processing
173 * might temporarily overflow the order length.
175 ecbits = EC_GROUP_order_bits(ecg);
178 sz = (ecbits + 7 ) / 8;
180 if (!ossl_param_build_set_bn_pad(tmpl, params,
181 OSSL_PKEY_PARAM_PRIV_KEY,
191 int otherparams_to_params(const EC_KEY *ec, OSSL_PARAM_BLD *tmpl,
194 int ecdh_cofactor_mode = 0;
200 (EC_KEY_get_flags(ec) & EC_FLAG_COFACTOR_ECDH) ? 1 : 0;
201 return ossl_param_build_set_int(tmpl, params,
202 OSSL_PKEY_PARAM_USE_COFACTOR_ECDH,
207 void *ec_newdata(void *provctx)
209 return EC_KEY_new_ex(PROV_LIBRARY_CONTEXT_OF(provctx));
213 void ec_freedata(void *keydata)
215 EC_KEY_free(keydata);
219 int ec_has(void *keydata, int selection)
221 EC_KEY *ec = keydata;
225 if ((selection & EC_POSSIBLE_SELECTIONS) != 0)
228 if ((selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0)
229 ok = ok && (EC_KEY_get0_public_key(ec) != NULL);
230 if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0)
231 ok = ok && (EC_KEY_get0_private_key(ec) != NULL);
232 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0)
233 ok = ok && (EC_KEY_get0_group(ec) != NULL);
235 * We consider OSSL_KEYMGMT_SELECT_OTHER_PARAMETERS to always be
236 * available, so no extra check is needed other than the previous one
237 * against EC_POSSIBLE_SELECTIONS.
243 static int ec_match(const void *keydata1, const void *keydata2, int selection)
245 const EC_KEY *ec1 = keydata1;
246 const EC_KEY *ec2 = keydata2;
247 const EC_GROUP *group_a = EC_KEY_get0_group(ec1);
248 const EC_GROUP *group_b = EC_KEY_get0_group(ec2);
251 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0)
252 ok = ok && group_a != NULL && group_b != NULL
253 && EC_GROUP_cmp(group_a, group_b, NULL) == 0;
254 if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0) {
255 const BIGNUM *pa = EC_KEY_get0_private_key(ec1);
256 const BIGNUM *pb = EC_KEY_get0_private_key(ec2);
258 ok = ok && BN_cmp(pa, pb) == 0;
260 if ((selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0) {
261 const EC_POINT *pa = EC_KEY_get0_public_key(ec1);
262 const EC_POINT *pb = EC_KEY_get0_public_key(ec2);
264 ok = ok && EC_POINT_cmp(group_b, pa, pb, NULL);
270 int ec_import(void *keydata, int selection, const OSSL_PARAM params[])
272 EC_KEY *ec = keydata;
279 * In this implementation, we can export/import only keydata in the
280 * following combinations:
281 * - domain parameters only
282 * - public key with associated domain parameters (+optional other params)
283 * - private key with associated public key and domain parameters
284 * (+optional other params)
287 * - domain parameters must always be requested
288 * - private key must be requested alongside public key
289 * - other parameters must be requested only alongside a key
291 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) == 0)
293 if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0
294 && (selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) == 0)
296 if ((selection & OSSL_KEYMGMT_SELECT_OTHER_PARAMETERS) != 0
297 && (selection & OSSL_KEYMGMT_SELECT_KEYPAIR) == 0)
300 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0)
301 ok = ok && ec_key_domparams_fromdata(ec, params);
302 if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0) {
303 int include_private =
304 selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY ? 1 : 0;
306 ok = ok && ec_key_fromdata(ec, params, include_private);
308 if ((selection & OSSL_KEYMGMT_SELECT_OTHER_PARAMETERS) != 0)
309 ok = ok && ec_key_otherparams_fromdata(ec, params);
315 int ec_export(void *keydata, int selection, OSSL_CALLBACK *param_cb,
318 EC_KEY *ec = keydata;
319 OSSL_PARAM_BLD *tmpl;
320 OSSL_PARAM *params = NULL;
321 unsigned char *pub_key = NULL;
328 * In this implementation, we can export/import only keydata in the
329 * following combinations:
330 * - domain parameters only
331 * - public key with associated domain parameters (+optional other params)
332 * - private key with associated public key and domain parameters
333 * (+optional other params)
336 * - domain parameters must always be requested
337 * - private key must be requested alongside public key
338 * - other parameters must be requested only alongside a key
340 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) == 0)
342 if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0
343 && (selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) == 0)
345 if ((selection & OSSL_KEYMGMT_SELECT_OTHER_PARAMETERS) != 0
346 && (selection & OSSL_KEYMGMT_SELECT_KEYPAIR) == 0)
349 tmpl = OSSL_PARAM_BLD_new();
353 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0)
354 ok = ok && domparams_to_params(ec, tmpl, NULL);
356 if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0) {
357 int include_private =
358 selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY ? 1 : 0;
360 ok = ok && key_to_params(ec, tmpl, NULL, include_private, &pub_key);
362 if ((selection & OSSL_KEYMGMT_SELECT_OTHER_PARAMETERS) != 0)
363 ok = ok && otherparams_to_params(ec, tmpl, NULL);
365 if (ok && (params = OSSL_PARAM_BLD_to_param(tmpl)) != NULL)
366 ok = param_cb(params, cbarg);
368 OSSL_PARAM_BLD_free_params(params);
369 OSSL_PARAM_BLD_free(tmpl);
370 OPENSSL_free(pub_key);
374 /* IMEXPORT = IMPORT + EXPORT */
376 # define EC_IMEXPORTABLE_DOM_PARAMETERS \
377 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_NAME, NULL, 0)
378 # define EC_IMEXPORTABLE_PUBLIC_KEY \
379 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_PUB_KEY, NULL, 0)
380 # define EC_IMEXPORTABLE_PRIVATE_KEY \
381 OSSL_PARAM_BN(OSSL_PKEY_PARAM_PRIV_KEY, NULL, 0)
382 # define EC_IMEXPORTABLE_OTHER_PARAMETERS \
383 OSSL_PARAM_int(OSSL_PKEY_PARAM_USE_COFACTOR_ECDH, NULL)
386 * Include all the possible combinations of OSSL_PARAM arrays for
387 * ec_imexport_types().
389 * They are in a separate file as it is ~100 lines of unreadable and
390 * uninteresting machine generated stuff.
392 * TODO(3.0): the generated list looks quite ugly, as to cover all possible
393 * combinations of the bits in `selection`, it also includes combinations that
394 * are not really useful: we might want to consider alternatives to this
397 #include "ec_kmgmt_imexport.inc"
400 const OSSL_PARAM *ec_imexport_types(int selection)
404 if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0)
406 if ((selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0)
408 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0)
410 if ((selection & OSSL_KEYMGMT_SELECT_OTHER_PARAMETERS) != 0)
412 return ec_types[type_select];
416 const OSSL_PARAM *ec_import_types(int selection)
418 return ec_imexport_types(selection);
422 const OSSL_PARAM *ec_export_types(int selection)
424 return ec_imexport_types(selection);
428 int ec_get_params(void *key, OSSL_PARAM params[])
432 const EC_GROUP *ecg = NULL;
434 unsigned char *pub_key = NULL;
436 ecg = EC_KEY_get0_group(eck);
440 if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_MAX_SIZE)) != NULL
441 && !OSSL_PARAM_set_int(p, ECDSA_size(eck)))
443 if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_BITS)) != NULL
444 && !OSSL_PARAM_set_int(p, EC_GROUP_order_bits(ecg)))
446 if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_SECURITY_BITS)) != NULL) {
447 int ecbits, sec_bits;
449 ecbits = EC_GROUP_order_bits(ecg);
452 * The following estimates are based on the values published
453 * in Table 2 of "NIST Special Publication 800-57 Part 1 Revision 4"
454 * at http://dx.doi.org/10.6028/NIST.SP.800-57pt1r4 .
456 * Note that the above reference explicitly categorizes algorithms in a
457 * discrete set of values {80, 112, 128, 192, 256}, and that it is
458 * relevant only for NIST approved Elliptic Curves, while OpenSSL
459 * applies the same logic also to other curves.
461 * Classifications produced by other standardazing bodies might differ,
462 * so the results provided for "bits of security" by this provider are
463 * to be considered merely indicative, and it is the users'
464 * responsibility to compare these values against the normative
465 * references that may be relevant for their intent and purposes.
469 else if (ecbits >= 384)
471 else if (ecbits >= 256)
473 else if (ecbits >= 224)
475 else if (ecbits >= 160)
478 sec_bits = ecbits / 2;
480 if (!OSSL_PARAM_set_int(p, sec_bits))
484 p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_USE_COFACTOR_ECDH);
486 int ecdh_cofactor_mode = 0;
489 (EC_KEY_get_flags(eck) & EC_FLAG_COFACTOR_ECDH) ? 1 : 0;
491 if (!OSSL_PARAM_set_int(p, ecdh_cofactor_mode))
494 ret = domparams_to_params(eck, NULL, params)
495 && key_to_params(eck, NULL, params, 1, &pub_key)
496 && otherparams_to_params(eck, NULL, params);
497 OPENSSL_free(pub_key);
501 static const OSSL_PARAM ec_known_gettable_params[] = {
502 OSSL_PARAM_int(OSSL_PKEY_PARAM_BITS, NULL),
503 OSSL_PARAM_int(OSSL_PKEY_PARAM_SECURITY_BITS, NULL),
504 OSSL_PARAM_int(OSSL_PKEY_PARAM_MAX_SIZE, NULL),
505 EC_IMEXPORTABLE_DOM_PARAMETERS,
506 EC_IMEXPORTABLE_PUBLIC_KEY,
507 EC_IMEXPORTABLE_PRIVATE_KEY,
508 EC_IMEXPORTABLE_OTHER_PARAMETERS,
513 const OSSL_PARAM *ec_gettable_params(void)
515 return ec_known_gettable_params;
518 static const OSSL_PARAM ec_known_settable_params[] = {
519 OSSL_PARAM_int(OSSL_PKEY_PARAM_USE_COFACTOR_ECDH, NULL),
524 const OSSL_PARAM *ec_settable_params(void)
526 return ec_known_settable_params;
530 int ec_set_params(void *key, const OSSL_PARAM params[])
535 p = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_USE_COFACTOR_ECDH);
536 if (p != NULL && !ec_set_param_ecdh_cofactor_mode(eck, p))
543 int ec_validate(void *keydata, int selection)
545 EC_KEY *eck = keydata;
547 BN_CTX *ctx = BN_CTX_new_ex(ec_key_get_libctx(eck));
552 if ((selection & EC_POSSIBLE_SELECTIONS) != 0)
555 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0)
556 ok = ok && EC_GROUP_check(EC_KEY_get0_group(eck), ctx);
558 if ((selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0)
559 ok = ok && ec_key_public_check(eck, ctx);
561 if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0)
562 ok = ok && ec_key_private_check(eck);
564 if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) == OSSL_KEYMGMT_SELECT_KEYPAIR)
565 ok = ok && ec_key_pairwise_check(eck, ctx);
578 static void *ec_gen_init(void *provctx, int selection)
580 OPENSSL_CTX *libctx = PROV_LIBRARY_CONTEXT_OF(provctx);
581 struct ec_gen_ctx *gctx = NULL;
583 if ((selection & (EC_POSSIBLE_SELECTIONS)) == 0)
586 if ((gctx = OPENSSL_zalloc(sizeof(*gctx))) != NULL) {
587 gctx->libctx = libctx;
588 gctx->gen_group = NULL;
589 gctx->selection = selection;
594 static int ec_gen_set_group(void *genctx, int nid)
596 struct ec_gen_ctx *gctx = genctx;
599 group = EC_GROUP_new_by_curve_name_ex(gctx->libctx, nid);
601 ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_CURVE);
604 EC_GROUP_free(gctx->gen_group);
605 gctx->gen_group = group;
608 static int ec_gen_set_template(void *genctx, void *templ)
610 struct ec_gen_ctx *gctx = genctx;
612 const EC_GROUP *ec_group;
614 if (gctx == NULL || ec == NULL)
616 if ((ec_group = EC_KEY_get0_group(ec)) == NULL)
618 return ec_gen_set_group(gctx, EC_GROUP_get_curve_name(ec_group));
621 static int ec_gen_set_params(void *genctx, const OSSL_PARAM params[])
623 struct ec_gen_ctx *gctx = genctx;
626 if ((p = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_EC_NAME))
628 const char *curve_name = NULL;
631 switch (p->data_type) {
632 case OSSL_PARAM_UTF8_STRING:
633 /* The OSSL_PARAM functions have no support for this */
634 curve_name = p->data;
635 ret = (curve_name != NULL);
637 case OSSL_PARAM_UTF8_PTR:
638 ret = OSSL_PARAM_get_utf8_ptr(p, &curve_name);
643 int nid = ec_curve_name2nid(curve_name);
645 if (nid == NID_undef) {
646 ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_CURVE);
649 ret = ec_gen_set_group(gctx, nid);
657 static const OSSL_PARAM *ec_gen_settable_params(void *provctx)
659 static OSSL_PARAM settable[] = {
660 { OSSL_PKEY_PARAM_EC_NAME, OSSL_PARAM_UTF8_STRING, NULL, 0, 0 },
667 static int ec_gen_get_params(void *genctx, OSSL_PARAM params[])
669 struct ec_gen_ctx *gctx = genctx;
672 if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_EC_NAME)) != NULL) {
673 int nid = EC_GROUP_get_curve_name(gctx->gen_group);
675 const char *curve_name = ec_curve_nid2name(nid);
677 switch (p->data_type) {
678 case OSSL_PARAM_UTF8_STRING:
679 ret = OSSL_PARAM_set_utf8_string(p, curve_name);
681 case OSSL_PARAM_UTF8_PTR:
682 ret = OSSL_PARAM_set_utf8_ptr(p, curve_name);
690 static const OSSL_PARAM *ec_gen_gettable_params(void *provctx)
692 static OSSL_PARAM gettable[] = {
693 { OSSL_PKEY_PARAM_EC_NAME, OSSL_PARAM_UTF8_PTR, NULL, 0, 0 },
700 static int ec_gen_assign_group(EC_KEY *ec, EC_GROUP *group)
703 ERR_raise(ERR_LIB_PROV, PROV_R_NO_PARAMETERS_SET);
706 return EC_KEY_set_group(ec, group) > 0;
710 * The callback arguments (osslcb & cbarg) are not used by EC_KEY generation
712 static void *ec_gen(void *genctx, OSSL_CALLBACK *osslcb, void *cbarg)
714 struct ec_gen_ctx *gctx = genctx;
716 int ret = 1; /* Start optimistically */
719 || (ec = EC_KEY_new_ex(gctx->libctx)) == NULL)
722 /* We must always assign a group, no matter what */
723 ret = ec_gen_assign_group(ec, gctx->gen_group);
724 /* Whether you want it or not, you get a keypair, not just one half */
725 if ((gctx->selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0)
726 ret = ret && EC_KEY_generate_key(ec);
731 /* Something went wrong, throw the key away */
736 static void ec_gen_cleanup(void *genctx)
738 struct ec_gen_ctx *gctx = genctx;
743 EC_GROUP_free(gctx->gen_group);
747 const OSSL_DISPATCH ec_keymgmt_functions[] = {
748 { OSSL_FUNC_KEYMGMT_NEW, (void (*)(void))ec_newdata },
749 { OSSL_FUNC_KEYMGMT_GEN_INIT, (void (*)(void))ec_gen_init },
750 { OSSL_FUNC_KEYMGMT_GEN_SET_TEMPLATE,
751 (void (*)(void))ec_gen_set_template },
752 { OSSL_FUNC_KEYMGMT_GEN_SET_PARAMS, (void (*)(void))ec_gen_set_params },
753 { OSSL_FUNC_KEYMGMT_GEN_SETTABLE_PARAMS,
754 (void (*)(void))ec_gen_settable_params },
755 { OSSL_FUNC_KEYMGMT_GEN_GET_PARAMS, (void (*)(void))ec_gen_get_params },
756 { OSSL_FUNC_KEYMGMT_GEN_GETTABLE_PARAMS,
757 (void (*)(void))ec_gen_gettable_params },
758 { OSSL_FUNC_KEYMGMT_GEN, (void (*)(void))ec_gen },
759 { OSSL_FUNC_KEYMGMT_GEN_CLEANUP, (void (*)(void))ec_gen_cleanup },
760 { OSSL_FUNC_KEYMGMT_FREE, (void (*)(void))ec_freedata },
761 { OSSL_FUNC_KEYMGMT_GET_PARAMS, (void (*) (void))ec_get_params },
762 { OSSL_FUNC_KEYMGMT_GETTABLE_PARAMS, (void (*) (void))ec_gettable_params },
763 { OSSL_FUNC_KEYMGMT_SET_PARAMS, (void (*) (void))ec_set_params },
764 { OSSL_FUNC_KEYMGMT_SETTABLE_PARAMS, (void (*) (void))ec_settable_params },
765 { OSSL_FUNC_KEYMGMT_HAS, (void (*)(void))ec_has },
766 { OSSL_FUNC_KEYMGMT_MATCH, (void (*)(void))ec_match },
767 { OSSL_FUNC_KEYMGMT_VALIDATE, (void (*)(void))ec_validate },
768 { OSSL_FUNC_KEYMGMT_IMPORT, (void (*)(void))ec_import },
769 { OSSL_FUNC_KEYMGMT_IMPORT_TYPES, (void (*)(void))ec_import_types },
770 { OSSL_FUNC_KEYMGMT_EXPORT, (void (*)(void))ec_export },
771 { OSSL_FUNC_KEYMGMT_EXPORT_TYPES, (void (*)(void))ec_export_types },
772 { OSSL_FUNC_KEYMGMT_QUERY_OPERATION_NAME,
773 (void (*)(void))ec_query_operation_name },