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
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
|
/*************************************************
* PK Engine Lookup Source File *
* (C) 1999-2007 Jack Lloyd *
*************************************************/
#include <botan/pk_engine.h>
#include <botan/libstate.h>
#include <botan/engine.h>
namespace Botan {
namespace Engine_Core {
#if defined(BOTAN_HAS_IF_PUBLIC_KEY_FAMILY)
/*************************************************
* Acquire an IF op *
*************************************************/
IF_Operation* if_op(const BigInt& e, const BigInt& n, const BigInt& d,
const BigInt& p, const BigInt& q, const BigInt& d1,
const BigInt& d2, const BigInt& c)
{
Algorithm_Factory::Engine_Iterator i(global_state().algorithm_factory());
while(const Engine* engine = i.next())
{
IF_Operation* op = engine->if_op(e, n, d, p, q, d1, d2, c);
if(op)
return op;
}
throw Lookup_Error("Engine_Core::if_op: Unable to find a working engine");
}
#endif
#if defined(BOTAN_HAS_DSA)
/*************************************************
* Acquire a DSA op *
*************************************************/
DSA_Operation* dsa_op(const DL_Group& group, const BigInt& y, const BigInt& x)
{
Algorithm_Factory::Engine_Iterator i(global_state().algorithm_factory());
while(const Engine* engine = i.next())
{
DSA_Operation* op = engine->dsa_op(group, y, x);
if(op)
return op;
}
throw Lookup_Error("Engine_Core::dsa_op: Unable to find a working engine");
}
#endif
#if defined(BOTAN_HAS_NYBERG_RUEPPEL)
/*************************************************
* Acquire a NR op *
*************************************************/
NR_Operation* nr_op(const DL_Group& group, const BigInt& y, const BigInt& x)
{
Algorithm_Factory::Engine_Iterator i(global_state().algorithm_factory());
while(const Engine* engine = i.next())
{
NR_Operation* op = engine->nr_op(group, y, x);
if(op)
return op;
}
throw Lookup_Error("Engine_Core::nr_op: Unable to find a working engine");
}
#endif
#if defined(BOTAN_HAS_ELGAMAL)
/*************************************************
* Acquire an ElGamal op *
*************************************************/
ELG_Operation* elg_op(const DL_Group& group, const BigInt& y, const BigInt& x)
{
Algorithm_Factory::Engine_Iterator i(global_state().algorithm_factory());
while(const Engine* engine = i.next())
{
ELG_Operation* op = engine->elg_op(group, y, x);
if(op)
return op;
}
throw Lookup_Error("Engine_Core::elg_op: Unable to find a working engine");
}
#endif
#if defined(BOTAN_HAS_DIFFIE_HELLMAN)
/*************************************************
* Acquire a DH op *
*************************************************/
DH_Operation* dh_op(const DL_Group& group, const BigInt& x)
{
Algorithm_Factory::Engine_Iterator i(global_state().algorithm_factory());
while(const Engine* engine = i.next())
{
DH_Operation* op = engine->dh_op(group, x);
if(op)
return op;
}
throw Lookup_Error("Engine_Core::dh_op: Unable to find a working engine");
}
#endif
#if defined(BOTAN_HAS_ECDSA)
/*************************************************
* Acquire an ECDSA op *
*************************************************/
ECDSA_Operation* ecdsa_op(const EC_Domain_Params& dom_pars,
const BigInt& priv_key,
const PointGFp& pub_key)
{
Algorithm_Factory::Engine_Iterator i(global_state().algorithm_factory());
while(const Engine* engine = i.next())
{
ECDSA_Operation* op = engine->ecdsa_op(dom_pars, priv_key, pub_key);
if(op)
return op;
}
throw Lookup_Error("Engine_Core::ecdsa_op: Unable to find a working engine");
}
#endif
#if defined(BOTAN_HAS_ECKAEG)
/*************************************************
* Acquire a ECKAEG op *
*************************************************/
ECKAEG_Operation* eckaeg_op(const EC_Domain_Params& dom_pars,
const BigInt& priv_key,
const PointGFp& pub_key)
{
Algorithm_Factory::Engine_Iterator i(global_state().algorithm_factory());
while(const Engine* engine = i.next())
{
ECKAEG_Operation* op = engine->eckaeg_op(dom_pars, priv_key, pub_key);
if(op)
return op;
}
throw Lookup_Error("Engine_Core::eckaeg_op: Unable to find a working engine");
}
#endif
/*************************************************
* Acquire a modular exponentiator *
*************************************************/
Modular_Exponentiator* mod_exp(const BigInt& n, Power_Mod::Usage_Hints hints)
{
Algorithm_Factory::Engine_Iterator i(global_state().algorithm_factory());
while(const Engine* engine = i.next())
{
Modular_Exponentiator* op = engine->mod_exp(n, hints);
if(op)
return op;
}
throw Lookup_Error("Engine_Core::mod_exp: Unable to find a working engine");
}
}
}
|
