1/* 2 * Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved. 3 * 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 8 */ 9 10#ifndef OPENSSL_HMAC_H 11# define OPENSSL_HMAC_H 12# pragma once 13 14# include <openssl/macros.h> 15# ifndef OPENSSL_NO_DEPRECATED_3_0 16# define HEADER_HMAC_H 17# endif 18 19# include <openssl/opensslconf.h> 20 21# include <openssl/evp.h> 22 23# ifndef OPENSSL_NO_DEPRECATED_3_0 24# define HMAC_MAX_MD_CBLOCK 200 /* Deprecated */ 25# endif 26 27# ifdef __cplusplus 28extern "C" { 29# endif 30 31# ifndef OPENSSL_NO_DEPRECATED_3_0 32OSSL_DEPRECATEDIN_3_0 size_t HMAC_size(const HMAC_CTX *e); 33OSSL_DEPRECATEDIN_3_0 HMAC_CTX *HMAC_CTX_new(void); 34OSSL_DEPRECATEDIN_3_0 int HMAC_CTX_reset(HMAC_CTX *ctx); 35OSSL_DEPRECATEDIN_3_0 void HMAC_CTX_free(HMAC_CTX *ctx); 36# endif 37# ifndef OPENSSL_NO_DEPRECATED_1_1_0 38OSSL_DEPRECATEDIN_1_1_0 __owur int HMAC_Init(HMAC_CTX *ctx, 39 const void *key, int len, 40 const EVP_MD *md); 41# endif 42# ifndef OPENSSL_NO_DEPRECATED_3_0 43OSSL_DEPRECATEDIN_3_0 int HMAC_Init_ex(HMAC_CTX *ctx, const void *key, int len, 44 const EVP_MD *md, ENGINE *impl); 45OSSL_DEPRECATEDIN_3_0 int HMAC_Update(HMAC_CTX *ctx, const unsigned char *data, 46 size_t len); 47OSSL_DEPRECATEDIN_3_0 int HMAC_Final(HMAC_CTX *ctx, unsigned char *md, 48 unsigned int *len); 49OSSL_DEPRECATEDIN_3_0 __owur int HMAC_CTX_copy(HMAC_CTX *dctx, HMAC_CTX *sctx); 50OSSL_DEPRECATEDIN_3_0 void HMAC_CTX_set_flags(HMAC_CTX *ctx, unsigned long flags); 51OSSL_DEPRECATEDIN_3_0 const EVP_MD *HMAC_CTX_get_md(const HMAC_CTX *ctx); 52# endif 53 54unsigned 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); 57 58# ifdef __cplusplus 59} 60# endif 61 62#endif 63