aboutsummaryrefslogtreecommitdiffstats
path: root/src/lib/block/xtea/xtea.h
blob: 42acc35a5c5df04ac8f56424c5f7ffcf94f0b6c7 (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
35
36
37
38
39
40
/*
* XTEA
* (C) 1999-2007 Jack Lloyd
*
* Distributed under the terms of the Botan license
*/

#ifndef BOTAN_XTEA_H__
#define BOTAN_XTEA_H__

#include <botan/block_cipher.h>

namespace Botan {

/**
* XTEA
*/
class BOTAN_DLL XTEA : public Block_Cipher_Fixed_Params<8, 16>
   {
   public:
      void encrypt_n(const byte in[], byte out[], size_t blocks) const;
      void decrypt_n(const byte in[], byte out[], size_t blocks) const;

      void clear();
      std::string name() const { return "XTEA"; }
      BlockCipher* clone() const { return new XTEA; }
   protected:
      /**
      * @return const reference to the key schedule
      */
      const secure_vector<u32bit>& get_EK() const { return EK; }

   private:
      void key_schedule(const byte[], size_t);
      secure_vector<u32bit> EK;
   };

}

#endif