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Annotation of embedaddon/curl/lib/curl_hmac.h, revision 1.1.1.1

1.1       misho       1: #ifndef HEADER_CURL_HMAC_H
                      2: #define HEADER_CURL_HMAC_H
                      3: /***************************************************************************
                      4:  *                                  _   _ ____  _
                      5:  *  Project                     ___| | | |  _ \| |
                      6:  *                             / __| | | | |_) | |
                      7:  *                            | (__| |_| |  _ <| |___
                      8:  *                             \___|\___/|_| \_\_____|
                      9:  *
                     10:  * Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al.
                     11:  *
                     12:  * This software is licensed as described in the file COPYING, which
                     13:  * you should have received as part of this distribution. The terms
                     14:  * are also available at https://curl.haxx.se/docs/copyright.html.
                     15:  *
                     16:  * You may opt to use, copy, modify, merge, publish, distribute and/or sell
                     17:  * copies of the Software, and permit persons to whom the Software is
                     18:  * furnished to do so, under the terms of the COPYING file.
                     19:  *
                     20:  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
                     21:  * KIND, either express or implied.
                     22:  *
                     23:  ***************************************************************************/
                     24: 
                     25: #ifndef CURL_DISABLE_CRYPTO_AUTH
                     26: 
                     27: #define HMAC_MD5_LENGTH 16
                     28: 
                     29: typedef void    (* HMAC_hinit_func)(void *context);
                     30: typedef void    (* HMAC_hupdate_func)(void *context,
                     31:                                       const unsigned char *data,
                     32:                                       unsigned int len);
                     33: typedef void    (* HMAC_hfinal_func)(unsigned char *result, void *context);
                     34: 
                     35: 
                     36: /* Per-hash function HMAC parameters. */
                     37: 
                     38: typedef struct {
                     39:   HMAC_hinit_func       hmac_hinit;     /* Initialize context procedure. */
                     40:   HMAC_hupdate_func     hmac_hupdate;   /* Update context with data. */
                     41:   HMAC_hfinal_func      hmac_hfinal;    /* Get final result procedure. */
                     42:   unsigned int          hmac_ctxtsize;  /* Context structure size. */
                     43:   unsigned int          hmac_maxkeylen; /* Maximum key length (bytes). */
                     44:   unsigned int          hmac_resultlen; /* Result length (bytes). */
                     45: } HMAC_params;
                     46: 
                     47: 
                     48: /* HMAC computation context. */
                     49: 
                     50: typedef struct {
                     51:   const HMAC_params *hmac_hash; /* Hash function definition. */
                     52:   void *hmac_hashctxt1;         /* Hash function context 1. */
                     53:   void *hmac_hashctxt2;         /* Hash function context 2. */
                     54: } HMAC_context;
                     55: 
                     56: 
                     57: /* Prototypes. */
                     58: 
                     59: HMAC_context * Curl_HMAC_init(const HMAC_params *hashparams,
                     60:                               const unsigned char *key,
                     61:                               unsigned int keylen);
                     62: int Curl_HMAC_update(HMAC_context *context,
                     63:                      const unsigned char *data,
                     64:                      unsigned int len);
                     65: int Curl_HMAC_final(HMAC_context *context, unsigned char *result);
                     66: 
                     67: CURLcode Curl_hmacit(const HMAC_params *hashparams,
                     68:                      const unsigned char *key, const size_t keylen,
                     69:                      const unsigned char *data, const size_t datalen,
                     70:                      unsigned char *output);
                     71: 
                     72: #endif
                     73: 
                     74: #endif /* HEADER_CURL_HMAC_H */