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
|
/* see bouncycastle_license.txt */
package com.lowagie.bc.asn1;
import java.io.IOException;
import java.util.Enumeration;
/**
* BER TaggedObject - in ASN.1 nottation this is any object proceeded by
* a [n] where n is some number - these are assume to follow the construction
* rules (as with sequences).
*/
public class BERTaggedObject
extends DERTaggedObject
{
/**
* @param tagNo the tag number for this object.
* @param obj the tagged object.
*/
public BERTaggedObject(
int tagNo,
DEREncodable obj)
{
super(tagNo, obj);
}
/**
* @param explicit true if an explicitly tagged object.
* @param tagNo the tag number for this object.
* @param obj the tagged object.
*/
public BERTaggedObject(
boolean explicit,
int tagNo,
DEREncodable obj)
{
super(explicit, tagNo, obj);
}
/**
* create an implicitly tagged object that contains a zero
* length sequence.
*/
public BERTaggedObject(
int tagNo)
{
super(false, tagNo, new BERConstructedSequence());
}
void encode(
DEROutputStream out)
throws IOException
{
if (out instanceof ASN1OutputStream || out instanceof BEROutputStream)
{
out.write(CONSTRUCTED | TAGGED | tagNo);
out.write(0x80);
if (!empty)
{
if (!explicit)
{
if (obj instanceof ASN1OctetString)
{
Enumeration e;
if (obj instanceof BERConstructedOctetString)
{
e = ((BERConstructedOctetString)obj).getObjects();
}
else
{
ASN1OctetString octs = (ASN1OctetString)obj;
BERConstructedOctetString berO = new BERConstructedOctetString(octs.getOctets());
e = berO.getObjects();
}
while (e.hasMoreElements())
{
out.writeObject(e.nextElement());
}
}
else if (obj instanceof ASN1Sequence)
{
Enumeration e = ((ASN1Sequence)obj).getObjects();
while (e.hasMoreElements())
{
out.writeObject(e.nextElement());
}
}
else if (obj instanceof ASN1Set)
{
Enumeration e = ((ASN1Set)obj).getObjects();
while (e.hasMoreElements())
{
out.writeObject(e.nextElement());
}
}
else
{
throw new RuntimeException("not implemented: " + obj.getClass().getName());
}
}
else
{
out.writeObject(obj);
}
}
out.write(0x00);
out.write(0x00);
}
else
{
super.encode(out);
}
}
}
|
