48 lines
989 B
C
48 lines
989 B
C
/*
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* Copyright 2014-2022 The GmSSL Project. All Rights Reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the License); you may
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* not use this file except in compliance with the License.
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*/
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#ifndef GMSSL_HMAC_H
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#define GMSSL_HMAC_H
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#include <string.h>
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#include <gmssl/digest.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define HMAC_MAX_SIZE (DIGEST_MAX_SIZE)
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typedef struct hmac_ctx_st {
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const DIGEST *digest;
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DIGEST_CTX digest_ctx;
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DIGEST_CTX i_ctx;
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DIGEST_CTX o_ctx;
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} HMAC_CTX;
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size_t hmac_size(const HMAC_CTX *ctx);
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int hmac_init(HMAC_CTX *ctx, const DIGEST *digest, const uint8_t *key, size_t keylen);
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int hmac_update(HMAC_CTX *ctx, const uint8_t *data, size_t datalen);
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int hmac_finish(HMAC_CTX *ctx, uint8_t *mac, size_t *maclen);
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int hmac(const DIGEST *md, const uint8_t *key, size_t keylen,
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const uint8_t *data, size_t dlen,
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uint8_t *mac, size_t *maclen);
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#ifdef __cplusplus
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}
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#endif
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#endif
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