File indexing completed on 2025-01-05 04:37:31

 /*
     SPDX-FileCopyrightText: 2005 Joris Guisson <joris.guisson@gmail.com>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 #ifndef BTSHA1HASHGEN_H
 #define BTSHA1HASHGEN_H
 
 #include "constants.h"
 #include "sha1hash.h"
 #include <ktorrent_export.h>
 
 class QCryptographicHash;
 
 namespace bt
 {
 /**
  * @author Joris Guisson
  *
  * Generates a SHA1 hash, code based on wikipedia's pseudocode
  * There are 2 ways to use this class :
  * - generate : all data is present from the start
  * - start, update and end : data can be delivered in chunks
  *
  * Mixing the 2, is not a good idea
  */
 class KTORRENT_EXPORT SHA1HashGen
 {
 public:
     SHA1HashGen();
     ~SHA1HashGen();
 
     /**
      * Generate a hash from a bunch of data.
      * @param data The data
      * @param len The length
      * @return The SHA1 hash
      */
     SHA1Hash generate(const Uint8 *data, Uint32 len);
 
     /**
      * Start SHA1 hash generation in chunks.
      */
     void start();
 
     /**
      * Update the hash.
      * @param data The data
      * @param len Length of the data
      */
     void update(const Uint8 *data, Uint32 len);
 
     /**
      * All data has been delivered, calculate the final hash.
      * @return
      */
     void end();
 
     /**
      * Get the hash generated.
      */
     SHA1Hash get() const;
 
 private:
     QCryptographicHash *h;
     Uint8 result[20];
 };
 
 }
 
 #endif