summaryrefslogtreecommitdiffstats
path: root/old/botan/build/botan/crc32.h
blob: 390fb100eac0fca9648e70bf8e269928f2c4f696 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
/*
* CRC32
* (C) 1999-2007 Jack Lloyd
*
* Distributed under the terms of the Botan license
*/

#ifndef BOTAN_CRC32_H__
#define BOTAN_CRC32_H__

#include <botan/hash.h>

namespace Botan {

/*
* CRC32
*/
class BOTAN_DLL CRC32 : public HashFunction
   {
   public:
      void clear() throw() { crc = 0xFFFFFFFF; }
      std::string name() const { return "CRC32"; }
      HashFunction* clone() const { return new CRC32; }
      CRC32() : HashFunction(4) { clear(); }
      ~CRC32() { clear(); }
   private:
      void add_data(const byte[], u32bit);
      void final_result(byte[]);
      u32bit crc;
   };

}

#endif