2 * Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
10 #ifndef OPENSSL_HMAC_H
11 # define OPENSSL_HMAC_H
14 # include <openssl/macros.h>
15 # ifndef OPENSSL_NO_DEPRECATED_3_0
16 # define HEADER_HMAC_H
19 # include <openssl/opensslconf.h>
21 # include <openssl/evp.h>
23 # ifndef OPENSSL_NO_DEPRECATED_3_0
24 # define HMAC_MAX_MD_CBLOCK 200 /* Deprecated */
31 # ifndef OPENSSL_NO_DEPRECATED_3_0
32 OSSL_DEPRECATEDIN_3_0 size_t HMAC_size(const HMAC_CTX *e);
33 OSSL_DEPRECATEDIN_3_0 HMAC_CTX *HMAC_CTX_new(void);
34 OSSL_DEPRECATEDIN_3_0 int HMAC_CTX_reset(HMAC_CTX *ctx);
35 OSSL_DEPRECATEDIN_3_0 void HMAC_CTX_free(HMAC_CTX *ctx);
37 # ifndef OPENSSL_NO_DEPRECATED_1_1_0
38 OSSL_DEPRECATEDIN_1_1_0 __owur int HMAC_Init(HMAC_CTX *ctx,
39 const void *key, int len,
42 # ifndef OPENSSL_NO_DEPRECATED_3_0
43 OSSL_DEPRECATEDIN_3_0 int HMAC_Init_ex(HMAC_CTX *ctx, const void *key, int len,
44 const EVP_MD *md, ENGINE *impl);
45 OSSL_DEPRECATEDIN_3_0 int HMAC_Update(HMAC_CTX *ctx, const unsigned char *data,
47 OSSL_DEPRECATEDIN_3_0 int HMAC_Final(HMAC_CTX *ctx, unsigned char *md,
49 OSSL_DEPRECATEDIN_3_0 __owur int HMAC_CTX_copy(HMAC_CTX *dctx, HMAC_CTX *sctx);
50 OSSL_DEPRECATEDIN_3_0 void HMAC_CTX_set_flags(HMAC_CTX *ctx, unsigned long flags);
51 OSSL_DEPRECATEDIN_3_0 const EVP_MD *HMAC_CTX_get_md(const HMAC_CTX *ctx);
54 unsigned char *HMAC(const EVP_MD *evp_md, const void *key, int key_len,
55 const unsigned char *data, size_t data_len,
56 unsigned char *md, unsigned int *md_len);