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
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
|
/*
Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
MA 02110-1301 USA.
*/
/* des.hpp defines DES, DES_EDE2, and DES_EDE3
see FIPS 46-2 and FIPS 81
*/
#ifndef TAO_CRYPT_DES_HPP
#define TAO_CRYPT_DES_HPP
#include "misc.hpp"
#include "modes.hpp"
#if defined(TAOCRYPT_X86ASM_AVAILABLE) && defined(TAO_ASM)
#define DO_DES_ASM
#endif
namespace TaoCrypt {
enum { DES_BLOCK_SIZE = 8, DES_KEY_SIZE = 32 };
class BasicDES {
public:
void SetKey(const byte*, word32, CipherDir dir);
void RawProcessBlock(word32&, word32&) const;
protected:
word32 k_[DES_KEY_SIZE];
};
// DES
class DES : public Mode_BASE, public BasicDES {
public:
DES(CipherDir DIR, Mode MODE)
: Mode_BASE(DES_BLOCK_SIZE, DIR, MODE) {}
private:
void ProcessAndXorBlock(const byte*, const byte*, byte*) const;
DES(const DES&); // hide copy
DES& operator=(const DES&); // and assign
};
// DES_EDE2
class DES_EDE2 : public Mode_BASE {
public:
DES_EDE2(CipherDir DIR, Mode MODE)
: Mode_BASE(DES_BLOCK_SIZE, DIR, MODE) {}
void SetKey(const byte*, word32, CipherDir dir);
private:
BasicDES des1_;
BasicDES des2_;
void ProcessAndXorBlock(const byte*, const byte*, byte*) const;
DES_EDE2(const DES_EDE2&); // hide copy
DES_EDE2& operator=(const DES_EDE2&); // and assign
};
// DES_EDE3
class DES_EDE3 : public Mode_BASE {
public:
DES_EDE3(CipherDir DIR, Mode MODE)
: Mode_BASE(DES_BLOCK_SIZE, DIR, MODE) {}
void SetKey(const byte*, word32, CipherDir dir);
void SetIV(const byte* iv) { memcpy(r_, iv, DES_BLOCK_SIZE); }
#ifdef DO_DES_ASM
void Process(byte*, const byte*, word32);
#endif
private:
BasicDES des1_;
BasicDES des2_;
BasicDES des3_;
void AsmProcess(const byte* in, byte* out, void* box) const;
void ProcessAndXorBlock(const byte*, const byte*, byte*) const;
DES_EDE3(const DES_EDE3&); // hide copy
DES_EDE3& operator=(const DES_EDE3&); // and assign
};
typedef BlockCipher<ENCRYPTION, DES, ECB> DES_ECB_Encryption;
typedef BlockCipher<DECRYPTION, DES, ECB> DES_ECB_Decryption;
typedef BlockCipher<ENCRYPTION, DES, CBC> DES_CBC_Encryption;
typedef BlockCipher<DECRYPTION, DES, CBC> DES_CBC_Decryption;
typedef BlockCipher<ENCRYPTION, DES_EDE2, ECB> DES_EDE2_ECB_Encryption;
typedef BlockCipher<DECRYPTION, DES_EDE2, ECB> DES_EDE2_ECB_Decryption;
typedef BlockCipher<ENCRYPTION, DES_EDE2, CBC> DES_EDE2_CBC_Encryption;
typedef BlockCipher<DECRYPTION, DES_EDE2, CBC> DES_EDE2_CBC_Decryption;
typedef BlockCipher<ENCRYPTION, DES_EDE3, ECB> DES_EDE3_ECB_Encryption;
typedef BlockCipher<DECRYPTION, DES_EDE3, ECB> DES_EDE3_ECB_Decryption;
typedef BlockCipher<ENCRYPTION, DES_EDE3, CBC> DES_EDE3_CBC_Encryption;
typedef BlockCipher<DECRYPTION, DES_EDE3, CBC> DES_EDE3_CBC_Decryption;
} // namespace
#endif // TAO_CRYPT_DES_HPP
|
