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/*************************************************
* XTEA Header File                               *
* (C) 1999-2007 Jack Lloyd                       *
*************************************************/

#ifndef BOTAN_XTEA_H__
#define BOTAN_XTEA_H__

#include <botan/base.h>

namespace Botan {

/*************************************************
* XTEA                                           *
*************************************************/
class BOTAN_DLL XTEA : public BlockCipher
   {
   public:
      void clear() throw() { EK.clear(); }
      std::string name() const { return "XTEA"; }
      BlockCipher* clone() const { return new XTEA; }
      XTEA() : BlockCipher(8, 16) {}
   private:
      void enc(const byte[], byte[]) const;
      void dec(const byte[], byte[]) const;
      void key(const byte[], u32bit);
      SecureBuffer<u32bit, 64> EK;
   };

}

#endif