mirror of
https://github.com/warmcat/libwebsockets.git
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75 lines
1.9 KiB
C
75 lines
1.9 KiB
C
/*
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* libwebsockets - generic EC api hiding the backend - common parts
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*
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* Copyright (C) 2017 - 2018 Andy Green <andy@warmcat.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation:
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* version 2.1 of the License.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301 USA
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*
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* lws_genec provides an EC abstraction api in lws that works the
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* same whether you are using openssl or mbedtls crypto functions underneath.
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*/
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#include "core/private.h"
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const struct lws_ec_curves *
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lws_genec_curve(const struct lws_ec_curves *table, const char *name)
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{
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const struct lws_ec_curves *c = lws_ec_curves;
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if (table)
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c = table;
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while (c->name) {
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if (!strcmp(name, c->name))
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return c;
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c++;
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}
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return NULL;
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}
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LWS_VISIBLE void
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lws_genec_destroy_elements(struct lws_gencrypto_keyelem *el)
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{
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int n;
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for (n = 0; n < LWS_GENCRYPTO_EC_KEYEL_COUNT; n++)
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if (el[n].buf)
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lws_free_set_NULL(el[n].buf);
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}
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static const char *enames[] = { "crv", "x", "d", "y" };
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LWS_VISIBLE int
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lws_genec_dump(struct lws_gencrypto_keyelem *el)
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{
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int n;
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(void)enames;
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lwsl_info(" genec %p: crv: '%s'\n", el,
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!!el[LWS_GENCRYPTO_EC_KEYEL_CRV].buf ?
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(char *)el[LWS_GENCRYPTO_EC_KEYEL_CRV].buf: "no curve name");
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for (n = LWS_GENCRYPTO_EC_KEYEL_X; n < LWS_GENCRYPTO_EC_KEYEL_COUNT;
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n++) {
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lwsl_info(" e: %s\n", enames[n]);
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lwsl_hexdump_info(el[n].buf, el[n].len);
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}
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lwsl_info("\n");
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return 0;
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}
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