Botan  1.10.9
xtea.h
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1 /*
2 * XTEA
3 * (C) 1999-2007 Jack Lloyd
4 *
5 * Distributed under the terms of the Botan license
6 */
7 
8 #ifndef BOTAN_XTEA_H__
9 #define BOTAN_XTEA_H__
10 
11 #include <botan/block_cipher.h>
12 
13 namespace Botan {
14 
15 /**
16 * XTEA
17 */
18 class BOTAN_DLL XTEA : public Block_Cipher_Fixed_Params<8, 16>
19  {
20  public:
21  void encrypt_n(const byte in[], byte out[], size_t blocks) const;
22  void decrypt_n(const byte in[], byte out[], size_t blocks) const;
23 
24  void clear() { zeroise(EK); }
25  std::string name() const { return "XTEA"; }
26  BlockCipher* clone() const { return new XTEA; }
27 
28  XTEA() : EK(64) {}
29  protected:
30  /**
31  * @return const reference to the key schedule
32  */
33  const SecureVector<u32bit>& get_EK() const { return EK; }
34 
35  private:
36  void key_schedule(const byte[], size_t);
38  };
39 
40 }
41 
42 #endif
BlockCipher * clone() const
Definition: xtea.h:26
unsigned char byte
Definition: types.h:22
std::string name() const
Definition: xtea.h:25
XTEA()
Definition: xtea.h:28
void clear()
Definition: xtea.h:24
void zeroise(MemoryRegion< T > &vec)
Definition: secmem.h:415
const SecureVector< u32bit > & get_EK() const
Definition: xtea.h:33