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
|
/*************************************************
* Blowfish Header File *
* (C) 1999-2006 The Botan Project *
*************************************************/
#ifndef BOTAN_BLOWFISH_H__
#define BOTAN_BLOWFISH_H__
#include <botan/base.h>
namespace Botan {
/*************************************************
* Blowfish *
*************************************************/
class Blowfish : public BlockCipher
{
public:
void clear() throw();
std::string name() const { return "Blowfish"; }
BlockCipher* clone() const { return new Blowfish; }
Blowfish() : BlockCipher(8, 1, 56) {}
private:
void enc(const byte[], byte[]) const;
void dec(const byte[], byte[]) const;
void key(const byte[], u32bit);
void generate_sbox(u32bit[], u32bit, u32bit&, u32bit&) const;
static const u32bit PBOX[18], SBOX1[256], SBOX2[256],
SBOX3[256], SBOX4[256];
SecureBuffer<u32bit, 256> S1, S2, S3, S4;
SecureBuffer<u32bit, 18> P;
};
}
#endif
|
