blob: 82dd6d24d531c93af781764cd97cc07c91181121 (
plain) (
blame)
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
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
|
using System;
using System.IO;
using Org.BouncyCastle.Utilities;
using Org.BouncyCastle.Utilities.Encoders;
namespace Org.BouncyCastle.Asn1
{
public abstract class Asn1OctetString
: Asn1Object, Asn1OctetStringParser
{
internal class Meta : Asn1UniversalType
{
internal static readonly Asn1UniversalType Instance = new Meta();
private Meta() : base(typeof(Asn1OctetString), Asn1Tags.OctetString) {}
internal override Asn1Object FromImplicitPrimitive(DerOctetString octetString)
{
return octetString;
}
internal override Asn1Object FromImplicitConstructed(Asn1Sequence sequence)
{
return sequence.ToAsn1OctetString();
}
}
internal static readonly byte[] EmptyOctets = new byte[0];
/**
* return an Octet string from the given object.
*
* @param obj the object we want converted.
* @exception ArgumentException if the object cannot be converted.
*/
public static Asn1OctetString GetInstance(object obj)
{
if (obj == null)
return null;
if (obj is Asn1OctetString asn1OctetString)
return asn1OctetString;
if (obj is IAsn1Convertible asn1Convertible)
{
if (!(obj is Asn1Object) && asn1Convertible.ToAsn1Object() is Asn1OctetString converted)
return converted;
}
else if (obj is byte[] bytes)
{
try
{
return (Asn1OctetString)Meta.Instance.FromByteArray(bytes);
}
catch (IOException e)
{
throw new ArgumentException("failed to construct OCTET STRING from byte[]: " + e.Message);
}
}
throw new ArgumentException("illegal object in GetInstance: " + Platform.GetTypeName(obj), "obj");
}
/**
* return an octet 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 Asn1OctetString GetInstance(Asn1TaggedObject taggedObject, bool declaredExplicit)
{
return (Asn1OctetString)Meta.Instance.GetContextInstance(taggedObject, declaredExplicit);
}
public static Asn1OctetString GetOptional(Asn1Encodable element)
{
if (element == null)
throw new ArgumentNullException(nameof(element));
if (element is Asn1OctetString existing)
return existing;
return null;
}
public static Asn1OctetString GetTagged(Asn1TaggedObject taggedObject, bool declaredExplicit)
{
return (Asn1OctetString)Meta.Instance.GetTagged(taggedObject, declaredExplicit);
}
internal readonly byte[] contents;
/**
* @param string the octets making up the octet string.
*/
internal Asn1OctetString(byte[] contents)
{
if (null == contents)
throw new ArgumentNullException("contents");
this.contents = contents;
}
#if NETCOREAPP2_1_OR_GREATER || NETSTANDARD2_1_OR_GREATER
internal Asn1OctetString(ReadOnlySpan<byte> contents)
{
this.contents = contents.ToArray();
}
#endif
public Stream GetOctetStream()
{
return new MemoryStream(contents, false);
}
public Asn1OctetStringParser Parser
{
get { return this; }
}
public virtual byte[] GetOctets()
{
return contents;
}
public virtual int GetOctetsLength() => GetOctets().Length;
#if NETCOREAPP2_1_OR_GREATER || NETSTANDARD2_1_OR_GREATER
internal ReadOnlyMemory<byte> GetOctetsMemory()
{
return GetOctets().AsMemory();
}
internal ReadOnlySpan<byte> GetOctetsSpan()
{
return GetOctets().AsSpan();
}
#endif
protected override int Asn1GetHashCode()
{
return Arrays.GetHashCode(GetOctets());
}
protected override bool Asn1Equals(Asn1Object asn1Object)
{
return asn1Object is Asn1OctetString that
&& Arrays.AreEqual(this.GetOctets(), that.GetOctets());
}
public override string ToString()
{
return "#" + Hex.ToHexString(contents);
}
internal static Asn1OctetString CreatePrimitive(byte[] contents)
{
return new DerOctetString(contents);
}
}
}
|
