2 // AuthorityKeyIdentifierExtension.cs: Handles X.509 AuthorityKeyIdentifier extensions.
5 // Sebastien Pouliot <sebastien@ximian.com>
7 // Copyright (C) 2004-2005 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
26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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
49 public class AuthorityKeyIdentifierExtension : X509Extension {
53 public AuthorityKeyIdentifierExtension () : base ()
55 extnOid = "2.5.29.35";
58 public AuthorityKeyIdentifierExtension (ASN1 asn1) : base (asn1)
62 public AuthorityKeyIdentifierExtension (X509Extension extension) : base (extension)
66 protected override void Decode ()
68 ASN1 sequence = new ASN1 (extnValue.Value);
69 if (sequence.Tag != 0x30)
70 throw new ArgumentException ("Invalid AuthorityKeyIdentifier extension");
71 for (int i=0; i < sequence.Count; i++) {
72 ASN1 el = sequence [i];
80 throw new ArgumentException ("Invalid AuthorityKeyIdentifier extension");
85 public override string Name {
86 get { return "Authority Key Identifier"; }
89 public byte[] Identifier {
93 return (byte[]) aki.Clone ();
97 public override string ToString ()
99 StringBuilder sb = new StringBuilder ();
103 sb.Append ("KeyID=");
104 while (x < aki.Length) {
105 sb.Append (aki [x].ToString ("X2", CultureInfo.InvariantCulture));
112 // [2] CertificateSerialNumber
115 return sb.ToString ();