blob: 6fa59de5e0657cdb0f739e80b40ffd3b0c35c2d4 (
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
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
|
/*
* DES
* (C) 1999-2007 Jack Lloyd
*
* Distributed under the terms of the Botan license
*/
#ifndef BOTAN_DES_H__
#define BOTAN_DES_H__
#include <botan/block_cipher.h>
namespace Botan {
/*
* DES
*/
class BOTAN_DLL DES : public BlockCipher
{
public:
void clear() throw() { round_key.clear(); }
std::string name() const { return "DES"; }
BlockCipher* clone() const { return new DES; }
DES() : BlockCipher(8, 8) {}
private:
void enc(const byte[], byte[]) const;
void dec(const byte[], byte[]) const;
void key_schedule(const byte[], u32bit);
SecureBuffer<u32bit, 32> round_key;
};
/*
* Triple DES
*/
class BOTAN_DLL TripleDES : public BlockCipher
{
public:
void clear() throw() { round_key.clear(); }
std::string name() const { return "TripleDES"; }
BlockCipher* clone() const { return new TripleDES; }
TripleDES() : BlockCipher(8, 16, 24, 8) {}
private:
void enc(const byte[], byte[]) const;
void dec(const byte[], byte[]) const;
void key_schedule(const byte[], u32bit);
SecureBuffer<u32bit, 96> round_key;
};
/*
* DES Tables
*/
extern const u32bit DES_SPBOX1[256];
extern const u32bit DES_SPBOX2[256];
extern const u32bit DES_SPBOX3[256];
extern const u32bit DES_SPBOX4[256];
extern const u32bit DES_SPBOX5[256];
extern const u32bit DES_SPBOX6[256];
extern const u32bit DES_SPBOX7[256];
extern const u32bit DES_SPBOX8[256];
extern const u64bit DES_IPTAB1[256];
extern const u64bit DES_IPTAB2[256];
extern const u64bit DES_FPTAB1[256];
extern const u64bit DES_FPTAB2[256];
}
#endif
|
