2 // SubjectKeyIdentifierExtension.cs: Handles X.509 SubjectKeyIdentifier extensions.
5 // Sebastien Pouliot <sebastien@ximian.com>
7 // (C) 2004 Novell (http://www.novell.com)
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13 // "Software"), to deal in the Software without restriction, including
14 // without limitation the rights to use, copy, modify, merge, publish,
15 // distribute, sublicense, and/or sell copies of the Software, and to
16 // permit persons to whom the Software is furnished to do so, subject to
17 // the following conditions:
19 // The above copyright notice and this permission notice shall be
20 // included in all copies or substantial portions of the Software.
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24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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32 using System.Globalization;
36 using Mono.Security.X509;
38 namespace Mono.Security.X509.Extensions {
41 * id-ce-subjectKeyIdentifier OBJECT IDENTIFIER ::= { id-ce 14 }
43 * SubjectKeyIdentifier ::= KeyIdentifier
45 * KeyIdentifier ::= OCTET STRING
53 class SubjectKeyIdentifierExtension : X509Extension {
57 public SubjectKeyIdentifierExtension () : base ()
59 extnOid = "2.5.29.14";
62 public SubjectKeyIdentifierExtension (ASN1 asn1) : base (asn1)
66 public SubjectKeyIdentifierExtension (X509Extension extension) : base (extension)
70 protected override void Decode ()
72 ASN1 sequence = new ASN1 (extnValue.Value);
73 if (sequence.Tag != 0x04)
74 throw new ArgumentException ("Invalid SubjectKeyIdentifier extension");
78 public override string Name {
79 get { return "Subject Key Identifier"; }
82 public byte[] Identifier {
86 return (byte[]) ski.Clone ();
90 public override string ToString ()
95 StringBuilder sb = new StringBuilder ();
97 while (x < ski.Length) {
98 sb.Append (ski [x].ToString ("X2", CultureInfo.InvariantCulture));
103 return sb.ToString ();