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//
// SubjectKeyIdentifierExtension.cs: Handles X.509 SubjectKeyIdentifier extensions.
//
// Author:
// Sebastien Pouliot <sebastien@ximian.com>
//
// (C) 2004 Novell (http://www.novell.com)
//
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System;
using System.Globalization;
using System.Text;
using Mono.Security;
using Mono.Security.X509;
namespace Mono.Security.X509.Extensions {
/*
* id-ce-subjectKeyIdentifier OBJECT IDENTIFIER ::= { id-ce 14 }
*
* SubjectKeyIdentifier ::= KeyIdentifier
*
* KeyIdentifier ::= OCTET STRING
*/
#if INSIDE_CORLIB || INSIDE_SYSTEM
internal
#else
public
#endif
class SubjectKeyIdentifierExtension : X509Extension {
private byte[] ski;
public SubjectKeyIdentifierExtension () : base ()
{
extnOid = "2.5.29.14";
}
public SubjectKeyIdentifierExtension (ASN1 asn1) : base (asn1)
{
}
public SubjectKeyIdentifierExtension (X509Extension extension) : base (extension)
{
}
protected override void Decode ()
{
ASN1 sequence = new ASN1 (extnValue.Value);
if (sequence.Tag != 0x04)
throw new ArgumentException ("Invalid SubjectKeyIdentifier extension");
ski = sequence.Value;
}
protected override void Encode ()
{
if (ski == null) {
throw new InvalidOperationException ("Invalid SubjectKeyIdentifier extension");
}
var seq = new ASN1 (0x04, ski);
extnValue = new ASN1 (0x04);
extnValue.Add (seq);
}
public override string Name {
get { return "Subject Key Identifier"; }
}
public byte[] Identifier {
get {
if (ski == null)
return null;
return (byte[]) ski.Clone ();
}
set { ski = value; }
}
public override string ToString ()
{
if (ski == null)
return null;
StringBuilder sb = new StringBuilder ();
int x = 0;
while (x < ski.Length) {
sb.Append (ski [x].ToString ("X2", CultureInfo.InvariantCulture));
if (x % 2 == 1)
sb.Append (" ");
x++;
}
return sb.ToString ();
}
}
}
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