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/* Copyright (C) 2016 CZ.NIC, z.s.p.o. <knot-dns@labs.nic.cz>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#pragma once
#include <gnutls/x509.h>
#include <stdint.h>
#include <stdlib.h>
#define CERT_PIN_LEN 32
/*!
* \brief Get certificate pin value.
*
* The pin is a SHA-256 hash of the X.509 SubjectPublicKeyInfo.
*
* \param[in] crt Certificate.
* \param[out] pin Pin.
* \param[in] size Length of the pin, must be CERT_PIN_LEN.
*
* \return Error code, KNOT_EOK if successful.
*/
int cert_get_pin(gnutls_x509_crt_t crt, uint8_t *pin, size_t size);
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