139 lines
3.7 KiB
C#
139 lines
3.7 KiB
C#
//
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// ExtendedKeyUsageExtension.cs: Handles X.509 ExtendedKeyUsage extensions.
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//
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// Author:
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// Sebastien Pouliot <sebastien@ximian.com>
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//
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// (C) 2003 Motus Technologies Inc. (http://www.motus.com)
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// Copyright (C) 2004-2005 Novell, Inc (http://www.novell.com)
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using System;
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using System.Collections;
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using System.Text;
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using Mono.Security;
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using Mono.Security.X509;
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namespace Mono.Security.X509.Extensions {
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/*
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* id-ce-extKeyUsage OBJECT IDENTIFIER ::= { id-ce 37 }
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*
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* ExtKeyUsageSyntax ::= SEQUENCE SIZE (1..MAX) OF KeyPurposeId
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*
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* KeyPurposeId ::= OBJECT IDENTIFIER
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*/
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#if INSIDE_SYSTEM
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internal
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#else
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public
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#endif
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class ExtendedKeyUsageExtension : X509Extension {
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private ArrayList keyPurpose;
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public ExtendedKeyUsageExtension () : base ()
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{
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extnOid = "2.5.29.37";
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keyPurpose = new ArrayList ();
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}
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public ExtendedKeyUsageExtension (ASN1 asn1) : base (asn1)
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{
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}
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public ExtendedKeyUsageExtension (X509Extension extension) : base (extension)
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{
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}
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protected override void Decode ()
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{
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keyPurpose = new ArrayList ();
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ASN1 sequence = new ASN1 (extnValue.Value);
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if (sequence.Tag != 0x30)
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throw new ArgumentException ("Invalid ExtendedKeyUsage extension");
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// for every policy OID
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for (int i=0; i < sequence.Count; i++)
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keyPurpose.Add (ASN1Convert.ToOid (sequence [i]));
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}
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protected override void Encode ()
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{
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ASN1 seq = new ASN1 (0x30);
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foreach (string oid in keyPurpose) {
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seq.Add (ASN1Convert.FromOid (oid));
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}
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extnValue = new ASN1 (0x04);
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extnValue.Add (seq);
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}
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public ArrayList KeyPurpose {
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get { return keyPurpose; }
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}
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public override string Name {
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get { return "Extended Key Usage"; }
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}
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// serverAuth 1.3.6.1.5.5.7.3.1
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// clientAuth 1.3.6.1.5.5.7.3.2
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// codeSigning 1.3.6.1.5.5.7.3.3
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// emailProtection 1.3.6.1.5.5.7.3.4
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// timeStamping 1.3.6.1.5.5.7.3.8
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// OCSPSigning 1.3.6.1.5.5.7.3.9
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public override string ToString ()
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{
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StringBuilder sb = new StringBuilder ();
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foreach (string s in keyPurpose) {
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switch (s) {
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case "1.3.6.1.5.5.7.3.1":
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sb.Append ("Server Authentication");
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break;
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case "1.3.6.1.5.5.7.3.2":
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sb.Append ("Client Authentication");
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break;
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case "1.3.6.1.5.5.7.3.3":
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sb.Append ("Code Signing");
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break;
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case "1.3.6.1.5.5.7.3.4":
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sb.Append ("Email Protection");
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break;
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case "1.3.6.1.5.5.7.3.8":
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sb.Append ("Time Stamping");
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break;
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case "1.3.6.1.5.5.7.3.9":
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sb.Append ("OCSP Signing");
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break;
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default:
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sb.Append ("unknown");
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break;
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}
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sb.AppendFormat (" ({0}){1}", s, Environment.NewLine);
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}
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return sb.ToString ();
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}
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}
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}
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