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