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 22 extern "C" { 23 #endif 24 25 size_t HMAC_size(const HMAC_CTX *e); 26 HMAC_CTX *HMAC_CTX_new(void); 27 int HMAC_CTX_reset(HMAC_CTX *ctx); 28 void HMAC_CTX_free(HMAC_CTX *ctx); 29 30 DEPRECATEDIN_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); 39 unsigned 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 44 void HMAC_CTX_set_flags(HMAC_CTX *ctx, unsigned long flags); 45 const EVP_MD *HMAC_CTX_get_md(const HMAC_CTX *ctx); 46 47 #ifdef __cplusplus 48 } 49 #endif 50 51 #endif 52