[thirdparty/systemd.git] / src / basic / hmac.h

/* SPDX-License-Identifier: LGPL-2.1-or-later */
#pragma once

#include <stdint.h>
#include <stdlib.h>

#include "sha256.h"

/* Unoptimized implementation based on FIPS 198. 'res' has to be allocated by
 * the caller. Prefer external OpenSSL functions, and use this only when
 * linking to OpenSSL is not desirable (eg: libsystemd.so). */
void hmac_sha256(const void *key, size_t key_size, const void *input, size_t input_size, uint8_t res[static SHA256_DIGEST_SIZE]);
Commit	Line	Data
8d39bff4 LB	1	/* SPDX-License-Identifier: LGPL-2.1-or-later */
	2	#pragma once
	3
	4	#include <stdint.h>
	5	#include <stdlib.h>
	6
e560cf4f	7	#include "sha256.h"
8d39bff4 LB	8
	9	/* Unoptimized implementation based on FIPS 198. 'res' has to be allocated by
	10	* the caller. Prefer external OpenSSL functions, and use this only when
ba669952	11	* linking to OpenSSL is not desirable (eg: libsystemd.so). */
8d39bff4	12	void hmac_sha256(const void key, size_t key_size, const void input, size_t input_size, uint8_t res[static SHA256_DIGEST_SIZE]);