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
|
using System;
using System.IO;
using Org.BouncyCastle.Utilities;
namespace Org.BouncyCastle.Asn1
{
/**
* Der T61String (also the teletex string) - 8-bit characters
*/
public class DerT61String
: DerStringBase
{
internal class Meta : Asn1UniversalType
{
internal static readonly Asn1UniversalType Instance = new Meta();
private Meta() : base(typeof(DerT61String), Asn1Tags.T61String) {}
internal override Asn1Object FromImplicitPrimitive(DerOctetString octetString)
{
return CreatePrimitive(octetString.GetOctets());
}
}
/**
* return a T61 string from the passed in object.
*
* @exception ArgumentException if the object cannot be converted.
*/
public static DerT61String GetInstance(object obj)
{
if (obj == null || obj is DerT61String)
{
return (DerT61String)obj;
}
else if (obj is IAsn1Convertible)
{
Asn1Object asn1Object = ((IAsn1Convertible)obj).ToAsn1Object();
if (asn1Object is DerT61String)
return (DerT61String)asn1Object;
}
else if (obj is byte[])
{
try
{
return (DerT61String)Meta.Instance.FromByteArray((byte[])obj);
}
catch (IOException e)
{
throw new ArgumentException("failed to construct T61 string from byte[]: " + e.Message);
}
}
throw new ArgumentException("illegal object in GetInstance: " + Platform.GetTypeName(obj));
}
/**
* return a T61 string from a tagged object.
*
* @param taggedObject the tagged object holding the object we want
* @param declaredExplicit true if the object is meant to be explicitly tagged false otherwise.
* @exception ArgumentException if the tagged object cannot be converted.
*/
public static DerT61String GetInstance(Asn1TaggedObject taggedObject, bool declaredExplicit)
{
return (DerT61String)Meta.Instance.GetContextInstance(taggedObject, declaredExplicit);
}
private readonly byte[] m_contents;
public DerT61String(string str)
{
if (str == null)
throw new ArgumentNullException("str");
m_contents = Strings.ToByteArray(str);
}
public DerT61String(byte[] contents)
: this(contents, true)
{
}
internal DerT61String(byte[] contents, bool clone)
{
if (null == contents)
throw new ArgumentNullException("contents");
m_contents = clone ? Arrays.Clone(contents) : contents;
}
public override string GetString()
{
return Strings.FromByteArray(m_contents);
}
internal override IAsn1Encoding GetEncoding(int encoding)
{
return new PrimitiveEncoding(Asn1Tags.Universal, Asn1Tags.T61String, m_contents);
}
internal override IAsn1Encoding GetEncodingImplicit(int encoding, int tagClass, int tagNo)
{
return new PrimitiveEncoding(tagClass, tagNo, m_contents);
}
public byte[] GetOctets()
{
return Arrays.Clone(m_contents);
}
protected override bool Asn1Equals(Asn1Object asn1Object)
{
DerT61String that = asn1Object as DerT61String;
return null != that
&& Arrays.AreEqual(this.m_contents, that.m_contents);
}
protected override int Asn1GetHashCode()
{
return Arrays.GetHashCode(m_contents);
}
internal static DerT61String CreatePrimitive(byte[] contents)
{
return new DerT61String(contents, false);
}
}
}
|
