2 // AuthorityKeyIdentifierExtension.cs: Handles X.509 AuthorityKeyIdentifier extensions.
5 // Sebastien Pouliot <sebastien@ximian.com>
7 // Copyright (C) 2004-2005,2007 Novell, Inc (http://www.novell.com)
9 // Permission is hereby granted, free of charge, to any person obtaining
10 // a copy of this software and associated documentation files (the
11 // "Software"), to deal in the Software without restriction, including
12 // without limitation the rights to use, copy, modify, merge, publish,
13 // distribute, sublicense, and/or sell copies of the Software, and to
14 // permit persons to whom the Software is furnished to do so, subject to
15 // the following conditions:
17 // The above copyright notice and this permission notice shall be
18 // included in all copies or substantial portions of the Software.
20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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30 using System
.Globalization
;
34 using Mono
.Security
.X509
;
36 namespace Mono
.Security
.X509
.Extensions
{
39 * id-ce-authorityKeyIdentifier OBJECT IDENTIFIER ::= { id-ce 35 }
41 * AuthorityKeyIdentifier ::= SEQUENCE {
42 * keyIdentifier [0] KeyIdentifier OPTIONAL,
43 * authorityCertIssuer [1] GeneralNames OPTIONAL,
44 * authorityCertSerialNumber [2] CertificateSerialNumber OPTIONAL }
46 * KeyIdentifier ::= OCTET STRING
54 class AuthorityKeyIdentifierExtension
: X509Extension
{
58 public AuthorityKeyIdentifierExtension () : base ()
60 extnOid
= "2.5.29.35";
63 public AuthorityKeyIdentifierExtension (ASN1 asn1
) : base (asn1
)
67 public AuthorityKeyIdentifierExtension (X509Extension extension
) : base (extension
)
71 protected override void Decode ()
73 ASN1 sequence
= new ASN1 (extnValue
.Value
);
74 if (sequence
.Tag
!= 0x30)
75 throw new ArgumentException ("Invalid AuthorityKeyIdentifier extension");
76 for (int i
=0; i
< sequence
.Count
; i
++) {
77 ASN1 el
= sequence
[i
];
83 // don't throw on stuff we don't yet support
84 // e.g. authorityCertIssuer/authorityCertSerialNumber
90 public override string Name
{
91 get { return "Authority Key Identifier"; }
94 public byte[] Identifier
{
98 return (byte[]) aki
.Clone ();
102 public override string ToString ()
104 StringBuilder sb
= new StringBuilder ();
108 sb
.Append ("KeyID=");
109 while (x
< aki
.Length
) {
110 sb
.Append (aki
[x
].ToString ("X2", CultureInfo
.InvariantCulture
));
117 // [2] CertificateSerialNumber
120 return sb
.ToString ();