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
|
/*
* DES
* (C) 1999-2007 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/
#ifndef BOTAN_DES_H_
#define BOTAN_DES_H_
#include <botan/block_cipher.h>
BOTAN_FUTURE_INTERNAL_HEADER(des.h)
namespace Botan {
/**
* DES
*/
class BOTAN_PUBLIC_API(2,0) DES final : public Block_Cipher_Fixed_Params<8, 8>
{
public:
void encrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const override;
void decrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const override;
void clear() override;
std::string name() const override { return "DES"; }
BlockCipher* clone() const override { return new DES; }
private:
void key_schedule(const uint8_t[], size_t) override;
secure_vector<uint32_t> m_round_key;
};
/**
* Triple DES
*/
class BOTAN_PUBLIC_API(2,0) TripleDES final : public Block_Cipher_Fixed_Params<8, 16, 24, 8>
{
public:
void encrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const override;
void decrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const override;
void clear() override;
std::string name() const override { return "TripleDES"; }
BlockCipher* clone() const override { return new TripleDES; }
private:
void key_schedule(const uint8_t[], size_t) override;
secure_vector<uint32_t> m_round_key;
};
/*
* DES Tables
*/
extern const uint32_t DES_SPBOX1[256];
extern const uint32_t DES_SPBOX2[256];
extern const uint32_t DES_SPBOX3[256];
extern const uint32_t DES_SPBOX4[256];
extern const uint32_t DES_SPBOX5[256];
extern const uint32_t DES_SPBOX6[256];
extern const uint32_t DES_SPBOX7[256];
extern const uint32_t DES_SPBOX8[256];
}
#endif
|
