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/*
* Copyright (c) 2005 Kungliga Tekniska Högskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/* $Id$ */
#ifndef HEIM_HMAC_H
#define HEIM_HMAC_H 1
#include <hcrypto/evp.h>
/* symbol renaming */
#define HMAC_CTX_init hc_HMAC_CTX_init
#define HMAC_CTX_cleanup hc_HMAC_CTX_cleanup
#define HMAC_size hc_HMAC_size
#define HMAC_Init_ex hc_HMAC_Init_ex
#define HMAC_Update hc_HMAC_Update
#define HMAC_Final hc_HMAC_Final
#define HMAC hc_HMAC
/*
*
*/
#define HMAC_MAX_MD_CBLOCK 64
typedef struct hc_HMAC_CTX HMAC_CTX;
struct hc_HMAC_CTX {
const EVP_MD *md;
ENGINE *engine;
EVP_MD_CTX *ctx;
size_t key_length;
void *opad;
void *ipad;
void *buf;
};
void HMAC_CTX_init(HMAC_CTX *);
void HMAC_CTX_cleanup(HMAC_CTX *ctx);
size_t HMAC_size(const HMAC_CTX *ctx);
void HMAC_Init_ex(HMAC_CTX *, const void *, size_t,
const EVP_MD *, ENGINE *);
void HMAC_Update(HMAC_CTX *ctx, const void *data, size_t len);
void HMAC_Final(HMAC_CTX *ctx, void *md, unsigned int *len);
void * HMAC(const EVP_MD *evp_md, const void *key, size_t key_len,
const void *data, size_t n, void *md, unsigned int *md_len);
#endif /* HEIM_HMAC_H */
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