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
|
package cz.crcs.ectester.standalone.libs.jni;
import java.security.*;
import java.security.spec.AlgorithmParameterSpec;
/**
* @author Jan Jancar johny@neuromancer.sk
*/
public abstract class NativeKeyPairGeneratorSpi extends KeyPairGeneratorSpi {
private int keysize;
private SecureRandom random;
private AlgorithmParameterSpec params;
private boolean useKeysize;
private boolean useParams;
@Override
public void initialize(int keysize, SecureRandom random) {
if (!keysizeSupported(keysize)) {
throw new InvalidParameterException("Keysize " + keysize + " not supported.");
}
this.keysize = keysize;
this.random = random;
this.useKeysize = true;
this.useParams = false;
}
@Override
public void initialize(AlgorithmParameterSpec params, SecureRandom random) throws InvalidAlgorithmParameterException {
if (!paramsSupported(params)) {
throw new InvalidAlgorithmParameterException("not supported.");
}
this.params = params;
this.random = random;
this.useParams = true;
this.useKeysize = false;
}
@Override
public KeyPair generateKeyPair() {
if (useKeysize) {
return generate(keysize, random);
} else if (useParams) {
return generate(params, random);
}
return null;
}
abstract boolean keysizeSupported(int keysize);
abstract boolean paramsSupported(AlgorithmParameterSpec params);
abstract KeyPair generate(int keysize, SecureRandom random);
abstract KeyPair generate(AlgorithmParameterSpec params, SecureRandom random);
public static class TomCrypt extends NativeKeyPairGeneratorSpi {
public TomCrypt() {
initialize(256, new SecureRandom());
}
@Override
native boolean keysizeSupported(int keysize);
@Override
native boolean paramsSupported(AlgorithmParameterSpec params);
@Override
native KeyPair generate(int keysize, SecureRandom random);
@Override
native KeyPair generate(AlgorithmParameterSpec params, SecureRandom random);
}
public static abstract class Botan extends NativeKeyPairGeneratorSpi {
private String type;
public Botan(String type) {
this.type = type;
initialize(256, new SecureRandom());
}
@Override
native boolean keysizeSupported(int keysize);
@Override
native boolean paramsSupported(AlgorithmParameterSpec params);
@Override
native KeyPair generate(int keysize, SecureRandom random);
@Override
native KeyPair generate(AlgorithmParameterSpec params, SecureRandom random);
}
public static class BotanECDH extends Botan {
public BotanECDH() {
super("ECDH");
}
}
public static class BotanECDSA extends Botan {
public BotanECDSA() {
super("ECDSA");
}
}
public static class BotanECKCDSA extends Botan {
public BotanECKCDSA() {
super("ECKCDSA");
}
}
public static class BotanECGDSA extends Botan {
public BotanECGDSA() {
super("ECGDSA");
}
}
}
|
