Botan  1.10.9
idea.h
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1 /*
2 * IDEA
3 * (C) 1999-2007 Jack Lloyd
4 *
5 * Distributed under the terms of the Botan license
6 */
7 
8 #ifndef BOTAN_IDEA_H__
9 #define BOTAN_IDEA_H__
10 
11 #include <botan/block_cipher.h>
12 
13 namespace Botan {
14 
15 /**
16 * IDEA
17 */
18 class BOTAN_DLL IDEA : 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); zeroise(DK); }
25  std::string name() const { return "IDEA"; }
26  BlockCipher* clone() const { return new IDEA; }
27 
28  IDEA() : EK(52), DK(52) {}
29  protected:
30  /**
31  * @return const reference to encryption subkeys
32  */
33  const SecureVector<u16bit>& get_EK() const { return EK; }
34 
35  /**
36  * @return const reference to decryption subkeys
37  */
38  const SecureVector<u16bit>& get_DK() const { return DK; }
39 
40  private:
41  void key_schedule(const byte[], size_t);
42  SecureVector<u16bit> EK, DK;
43  };
44 
45 }
46 
47 #endif
const SecureVector< u16bit > & get_EK() const
Definition: idea.h:33
BlockCipher * clone() const
Definition: idea.h:26
void clear()
Definition: idea.h:24
unsigned char byte
Definition: types.h:22
std::string name() const
Definition: idea.h:25
IDEA()
Definition: idea.h:28
void zeroise(MemoryRegion< T > &vec)
Definition: secmem.h:415
const SecureVector< u16bit > & get_DK() const
Definition: idea.h:38