ocrypto_hmac_sha256.h

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/*
 * Copyright (c) 2016 - 2025 Nordic Semiconductor ASA
 * Copyright (c) since 2013 Oberon microsystems AG
 *
 * SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
 */
 
 
#ifndef OCRYPTO_HMAC_SHA256_H
#define OCRYPTO_HMAC_SHA256_H
 
#include <stddef.h>
#include <stdint.h>
 
#include "ocrypto_sha256.h"
 
 
#ifdef __cplusplus
extern "C" {
#endif
 
 
#define ocrypto_hmac_sha256_BYTES (32)
 
 
typedef struct {
    ocrypto_sha256_ctx sha;
    uint8_t k[64];
} ocrypto_hmac_sha256_ctx;
void ocrypto_hmac_sha256_init(
    ocrypto_hmac_sha256_ctx *ctx,
    const uint8_t* key, size_t key_len);
 
void ocrypto_hmac_sha256_update(
    ocrypto_hmac_sha256_ctx *ctx,
    const uint8_t *in, size_t in_len);
 
void ocrypto_hmac_sha256_final(
    ocrypto_hmac_sha256_ctx *ctx,
    uint8_t r[ocrypto_hmac_sha256_BYTES]);
void ocrypto_hmac_sha256(
    uint8_t r[ocrypto_hmac_sha256_BYTES],
    const uint8_t* key, size_t key_len,
    const uint8_t* in, size_t in_len);
 
void ocrypto_hmac_sha256_aad(
    uint8_t r[ocrypto_hmac_sha256_BYTES],
    const uint8_t* key, size_t key_len,
    const uint8_t* in, size_t in_len,
    const uint8_t* aad, size_t aad_len);
 
#ifdef __cplusplus
}
#endif
 
#endif