2 // SubjectKeyIdentifierExtension.cs: Handles X.509 SubjectKeyIdentifier extensions.
5 // Sebastien Pouliot <sebastien@ximian.com>
7 // (C) 2004 Novell (http://www.novell.com)
11 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
13 // Permission is hereby granted, free of charge, to any person obtaining
14 // a copy of this software and associated documentation files (the
15 // "Software"), to deal in the Software without restriction, including
16 // without limitation the rights to use, copy, modify, merge, publish,
17 // distribute, sublicense, and/or sell copies of the Software, and to
18 // permit persons to whom the Software is furnished to do so, subject to
19 // the following conditions:
21 // The above copyright notice and this permission notice shall be
22 // included in all copies or substantial portions of the Software.
24 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
25 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
26 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
27 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
28 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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30 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
34 using System.Globalization;
38 using Mono.Security.X509;
40 namespace Mono.Security.X509.Extensions {
43 * id-ce-subjectKeyIdentifier OBJECT IDENTIFIER ::= { id-ce 14 }
45 * SubjectKeyIdentifier ::= KeyIdentifier
47 * KeyIdentifier ::= OCTET STRING
55 class SubjectKeyIdentifierExtension : X509Extension {
59 public SubjectKeyIdentifierExtension () : base ()
61 extnOid = "2.5.29.14";
64 public SubjectKeyIdentifierExtension (ASN1 asn1) : base (asn1)
68 public SubjectKeyIdentifierExtension (X509Extension extension) : base (extension)
72 protected override void Decode ()
74 ASN1 sequence = new ASN1 (extnValue.Value);
75 if (sequence.Tag != 0x04)
76 throw new ArgumentException ("Invalid SubjectKeyIdentifier extension");
80 public override string Name {
81 get { return "Subject Key Identifier"; }
84 public byte[] Identifier {
88 return (byte[]) ski.Clone ();
92 public override string ToString ()
97 StringBuilder sb = new StringBuilder ();
99 while (x < ski.Length) {
100 sb.Append (ski [x].ToString ("X2", CultureInfo.InvariantCulture));
105 return sb.ToString ();