blob: d5e826d15b8d2b4c9cc865416916fa9db008e659 (
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
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
|
package org.bouncycastle.asn1;
import java.io.IOException;
import java.math.BigInteger;
import org.bouncycastle.util.Arrays;
public class DERInteger
extends ASN1Primitive
{
byte[] bytes;
/**
* return an integer from the passed in object
*
* @exception IllegalArgumentException if the object cannot be converted.
*/
public static ASN1Integer getInstance(
Object obj)
{
if (obj == null || obj instanceof ASN1Integer)
{
return (ASN1Integer)obj;
}
if (obj instanceof DERInteger)
{
return new ASN1Integer((((DERInteger)obj).getValue()));
}
throw new IllegalArgumentException("illegal object in getInstance: " + obj.getClass().getName());
}
/**
* return an Integer from a tagged object.
*
* @param obj the tagged object holding the object we want
* @param explicit true if the object is meant to be explicitly
* tagged false otherwise.
* @exception IllegalArgumentException if the tagged object cannot
* be converted.
*/
public static ASN1Integer getInstance(
ASN1TaggedObject obj,
boolean explicit)
{
ASN1Primitive o = obj.getObject();
if (explicit || o instanceof DERInteger)
{
return getInstance(o);
}
else
{
return new ASN1Integer(ASN1OctetString.getInstance(obj.getObject()).getOctets());
}
}
public DERInteger(
int value)
{
bytes = BigInteger.valueOf(value).toByteArray();
}
public DERInteger(
BigInteger value)
{
bytes = value.toByteArray();
}
public DERInteger(
byte[] bytes)
{
this.bytes = bytes;
}
public BigInteger getValue()
{
return new BigInteger(bytes);
}
/**
* in some cases positive values get crammed into a space,
* that's not quite big enough...
*/
public BigInteger getPositiveValue()
{
return new BigInteger(1, bytes);
}
boolean isConstructed()
{
return false;
}
int encodedLength()
{
return 1 + StreamUtil.calculateBodyLength(bytes.length) + bytes.length;
}
void encode(
ASN1OutputStream out)
throws IOException
{
out.writeEncoded(BERTags.INTEGER, bytes);
}
public int hashCode()
{
int value = 0;
for (int i = 0; i != bytes.length; i++)
{
value ^= (bytes[i] & 0xff) << (i % 4);
}
return value;
}
boolean asn1Equals(
ASN1Primitive o)
{
if (!(o instanceof DERInteger))
{
return false;
}
DERInteger other = (DERInteger)o;
return Arrays.areEqual(bytes, other.bytes);
}
public String toString()
{
return getValue().toString();
}
}
|
