1/*
2 * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the OpenSSL license (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
8 */
9
10#ifndef HEADER_HMAC_H
11# define HEADER_HMAC_H
12
13# include <openssl/opensslconf.h>
14
15# include <openssl/evp.h>
16
17# if OPENSSL_API_COMPAT < 0x10200000L
18# define HMAC_MAX_MD_CBLOCK 128 /* Deprecated */
19# endif
20
21#ifdef __cplusplus
22extern "C" {
23#endif
24
25size_t HMAC_size(const HMAC_CTX *e);
26HMAC_CTX *HMAC_CTX_new(void);
27int HMAC_CTX_reset(HMAC_CTX *ctx);
28void HMAC_CTX_free(HMAC_CTX *ctx);
29
30DEPRECATEDIN_1_1_0(__owur int HMAC_Init(HMAC_CTX *ctx, const void *key, int len,
31 const EVP_MD *md))
32
33/*__owur*/ int HMAC_Init_ex(HMAC_CTX *ctx, const void *key, int len,
34 const EVP_MD *md, ENGINE *impl);
35/*__owur*/ int HMAC_Update(HMAC_CTX *ctx, const unsigned char *data,
36 size_t len);
37/*__owur*/ int HMAC_Final(HMAC_CTX *ctx, unsigned char *md,
38 unsigned int *len);
39unsigned char *HMAC(const EVP_MD *evp_md, const void *key, int key_len,
40 const unsigned char *d, size_t n, unsigned char *md,
41 unsigned int *md_len);
42__owur int HMAC_CTX_copy(HMAC_CTX *dctx, HMAC_CTX *sctx);
43
44void HMAC_CTX_set_flags(HMAC_CTX *ctx, unsigned long flags);
45const EVP_MD *HMAC_CTX_get_md(const HMAC_CTX *ctx);
46
47#ifdef __cplusplus
48}
49#endif
50
51#endif
52