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13 lines
469 B
C
13 lines
469 B
C
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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#pragma once
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#include <stdint.h>
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#include <stdlib.h>
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#include "sha256.h"
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/* Unoptimized implementation based on FIPS 198. 'res' has to be allocated by
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* the caller. Prefer external OpenSSL functions, and use this only when
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* linking to OpenSSL is not desirable (eg: libsystemd.so). */
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void hmac_sha256(const void *key, size_t key_size, const void *input, size_t input_size, uint8_t res[static SHA256_DIGEST_SIZE]);
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