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#ifndef HEADER_CURL_HMAC_H
#define HEADER_CURL_HMAC_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2010, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at http://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#ifndef CURL_DISABLE_CRYPTO_AUTH
typedef void (* HMAC_hinit_func)(void * context);
typedef void (* HMAC_hupdate_func)(void * context,
const unsigned char * data,
unsigned int len);
typedef void (* HMAC_hfinal_func)(unsigned char * result, void * context);
/* Per-hash function HMAC parameters. */
typedef struct {
HMAC_hinit_func hmac_hinit; /* Initialize context procedure. */
HMAC_hupdate_func hmac_hupdate; /* Update context with data. */
HMAC_hfinal_func hmac_hfinal; /* Get final result procedure. */
unsigned int hmac_ctxtsize; /* Context structure size. */
unsigned int hmac_maxkeylen; /* Maximum key length (bytes). */
unsigned int hmac_resultlen; /* Result length (bytes). */
} HMAC_params;
/* HMAC computation context. */
typedef struct {
const HMAC_params * hmac_hash; /* Hash function definition. */
void * hmac_hashctxt1; /* Hash function context 1. */
void * hmac_hashctxt2; /* Hash function context 2. */
} HMAC_context;
/* Prototypes. */
HMAC_context * Curl_HMAC_init(const HMAC_params * hashparams,
const unsigned char * key,
unsigned int keylen);
int Curl_HMAC_update(HMAC_context * context,
const unsigned char * data,
unsigned int len);
int Curl_HMAC_final(HMAC_context * context, unsigned char * result);
#endif
#endif /* HEADER_CURL_HMAC_H */
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