blob: 7ab2864243db1b68962e65f9a572df3fcec58367 (
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
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
|
/*************************************************
* ECKAEG Header File *
* (C) 2007 Falko Strenzke, FlexSecure GmbH *
* Manuel hartl, FlexSecure GmbH *
* (C) 2008 Jack Lloyd *
*************************************************/
#ifndef BOTAN_ECKAEG_KEY_H__
#define BOTAN_ECKAEG_KEY_H__
#include <botan/ecc_key.h>
namespace Botan {
/**
* This class represents ECKAEG Public Keys.
*/
class ECKAEG_PublicKey : public virtual EC_PublicKey
{
public:
/**
* Default constructor. Use this one if you want to later fill this object with data
* from an encoded key.
*/
ECKAEG_PublicKey()
{};
/**
* Construct a public key from a given public point.
* @param dom_par the domain parameters associated with this key
* @param public_point the public point defining this key
*/
ECKAEG_PublicKey(EC_Domain_Params const& dom_par, Botan::PointGFp const& public_point);
/**
* Get this keys algorithm name.
* @result this keys algorithm name
*/
std::string algo_name() const
{
return "ECKAEG";
}
/**
* Get the maximum number of bits allowed to be fed to this key.
* This is the bitlength of the order of the base point.
*
* @result the maximum number of input bits
*/
u32bit max_input_bits() const
{
if (!mp_dom_pars.get())
{
throw Invalid_State("ECKAEG_PublicKey::max_input_bits(): domain parameters not set");
}
return mp_dom_pars->get_order().bits();
}
ECKAEG_PublicKey(ECKAEG_PublicKey const& other);
ECKAEG_PublicKey const& operator= (ECKAEG_PublicKey const& rhs);
/**
* Make sure that the public point and domain parameters of this key are set.
* @throw Invalid_State if either of the two data members is not set
*/
virtual void affirm_init() const;
protected:
void X509_load_hook();
virtual void set_all_values ( ECKAEG_PublicKey const& other );
ECKAEG_Core m_eckaeg_core;
};
/**
* This class represents ECKAEG Private Keys.
*/
class ECKAEG_PrivateKey : public ECKAEG_PublicKey, public EC_PrivateKey, public PK_Key_Agreement_Key
{
public:
/**
* Generate a new private key
* @param the domain parameters to used for this key
*/
ECKAEG_PrivateKey(RandomNumberGenerator& rng,
EC_Domain_Params const& dom_pars)
{
mp_dom_pars = std::auto_ptr<EC_Domain_Params>(new EC_Domain_Params(dom_pars));
generate_private_key(rng);
mp_public_point->check_invariants();
m_eckaeg_core = ECKAEG_Core(*mp_dom_pars, m_private_value, *mp_public_point);
}
/**
* Default constructor. Use this one if you want to later fill this object with data
* from an encoded key.
*/
ECKAEG_PrivateKey()
{}
ECKAEG_PrivateKey(ECKAEG_PrivateKey const& other);
ECKAEG_PrivateKey const& operator= (ECKAEG_PrivateKey const& rhs);
void PKCS8_load_hook(bool = false);
/**
* Derive a shared key with the other partys public key.
* @param pub_key the other partys public key
*/
SecureVector<byte> derive_key(const Public_Key& pub_key) const;
/**
* Make sure that the public key parts of this object are set
* (calls EC_PublicKey::affirm_init()) as well as the private key
* value.
* @throw Invalid_State if the above conditions are not satisfied
*/
virtual void affirm_init() const;
protected:
virtual void set_all_values ( ECKAEG_PrivateKey const& other );
};
}
#endif
|
