#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 */