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
|
/*************************************************
* EMSA Header File *
* (C) 1999-2007 Jack Lloyd *
*************************************************/
#ifndef BOTAN_EMSA_H__
#define BOTAN_EMSA_H__
#include <botan/pk_util.h>
namespace Botan {
/*************************************************
* EMSA1 *
*************************************************/
class BOTAN_DLL EMSA1 : public EMSA
{
public:
EMSA1(const std::string&);
~EMSA1() { delete hash; }
private:
void update(const byte[], u32bit);
SecureVector<byte> raw_data();
SecureVector<byte> encoding_of(const MemoryRegion<byte>&, u32bit,
RandomNumberGenerator& rng);
bool verify(const MemoryRegion<byte>&, const MemoryRegion<byte>&,
u32bit) throw();
HashFunction* hash;
};
/*************************************************
* EMSA2 *
*************************************************/
class BOTAN_DLL EMSA2 : public EMSA
{
public:
EMSA2(const std::string&);
~EMSA2() { delete hash; }
private:
void update(const byte[], u32bit);
SecureVector<byte> raw_data();
SecureVector<byte> encoding_of(const MemoryRegion<byte>&, u32bit,
RandomNumberGenerator& rng);
SecureVector<byte> empty_hash;
HashFunction* hash;
byte hash_id;
};
/*************************************************
* EMSA3 *
*************************************************/
class BOTAN_DLL EMSA3 : public EMSA
{
public:
EMSA3(const std::string&);
~EMSA3() { delete hash; }
private:
void update(const byte[], u32bit);
SecureVector<byte> raw_data();
SecureVector<byte> encoding_of(const MemoryRegion<byte>&, u32bit,
RandomNumberGenerator& rng);
HashFunction* hash;
SecureVector<byte> hash_id;
};
/*************************************************
* EMSA4 *
*************************************************/
class BOTAN_DLL EMSA4 : public EMSA
{
public:
EMSA4(const std::string&, const std::string&);
EMSA4(const std::string&, const std::string&, u32bit);
~EMSA4() { delete hash; delete mgf; }
private:
void update(const byte[], u32bit);
SecureVector<byte> raw_data();
SecureVector<byte> encoding_of(const MemoryRegion<byte>&, u32bit,
RandomNumberGenerator& rng);
bool verify(const MemoryRegion<byte>&, const MemoryRegion<byte>&,
u32bit) throw();
const u32bit SALT_SIZE;
HashFunction* hash;
const MGF* mgf;
};
/*************************************************
* EMSA-Raw *
*************************************************/
class BOTAN_DLL EMSA_Raw : public EMSA
{
private:
void update(const byte[], u32bit);
SecureVector<byte> encoding_of(const MemoryRegion<byte>&, u32bit,
RandomNumberGenerator&);
SecureVector<byte> raw_data();
SecureVector<byte> message;
};
}
#endif
|
