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
|
package cz.crcs.ectester.standalone.libs.jni;
import cz.crcs.ectester.common.util.ByteUtil;
import cz.crcs.ectester.common.util.ECUtil;
import org.bouncycastle.util.Arrays;
import java.security.interfaces.ECPublicKey;
import java.security.spec.ECParameterSpec;
import java.security.spec.ECPoint;
/**
* @author Jan Jancar johny@neuromancer.sk
*/
public abstract class NativeECPublicKey implements ECPublicKey {
private String algorithm;
private String format;
ECParameterSpec params;
public NativeECPublicKey(String algorithm, String format, ECParameterSpec params) {
this.algorithm = algorithm;
this.format = format;
this.params = params;
}
@Override
public String getAlgorithm() {
return algorithm;
}
@Override
public String getFormat() {
return format;
}
@Override
public ECParameterSpec getParams() {
return params;
}
public abstract byte[] getData();
private static class ANSIX962 extends NativeECPublicKey {
byte[] keyData;
public ANSIX962(byte[] keyData, ECParameterSpec params) {
super("EC", "ANSI X9.62", params);
this.keyData = Arrays.clone(keyData);
}
@Override
public ECPoint getW() {
return ECUtil.fromX962(keyData, params.getCurve());
}
@Override
public byte[] getEncoded() {
return Arrays.clone(keyData);
}
public byte[] getData() {
return ECUtil.toX962Uncompressed(getW(), params);
}
}
public static class TomCrypt extends ANSIX962 {
public TomCrypt(byte[] keyData, ECParameterSpec params) {
super(keyData, params);
}
}
public static class Botan extends ANSIX962 {
public Botan(byte[] keyData, ECParameterSpec params) {
super(keyData, params);
}
}
public static class Cryptopp extends ANSIX962 {
public Cryptopp(byte[] keyData, ECParameterSpec params) {
super(keyData, params);
}
}
public static class Openssl extends ANSIX962 {
public Openssl(byte[] keyData, ECParameterSpec params) {
super(keyData, params);
}
}
public static class Mscng extends ANSIX962 {
// 0 -> implicit (meta = curveName UTF16, header = full);
// 1 -> explicit (meta = null, header = full);
// 2 -> nist (meta = null, header = full)
private int flag;
private byte[] meta = null;
private byte[] header;
private byte[] x;
private byte[] y;
public Mscng(int flag, byte[] meta, byte[] header, byte[] x, byte[] y, ECParameterSpec params) {
super(ByteUtil.concatenate(new byte[]{0x04}, x, y), params);
this.flag = flag;
this.meta = Arrays.clone(meta);
this.header = Arrays.clone(header);
this.x = Arrays.clone(x);
this.y = Arrays.clone(y);
}
public int getFlag() {
return flag;
}
public byte[] getMeta() {
return Arrays.clone(meta);
}
public byte[] getHeader() {
return Arrays.clone(header);
}
public byte[] getBlob() {
return ByteUtil.concatenate(header, x, y);
}
@Override
public byte[] getData() {
return getBlob();
}
}
}
|
