106 lines
3.1 KiB
C#
106 lines
3.1 KiB
C#
//
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// System.Security.Cryptography.Pkcs.Pkcs9DocumentDescription class
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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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#if SECURITY_DEP
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using System.Text;
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using Mono.Security;
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namespace System.Security.Cryptography.Pkcs {
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public sealed class Pkcs9DocumentDescription : Pkcs9AttributeObject {
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internal const string oid = "1.3.6.1.4.1.311.88.2.2";
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internal const string friendlyName = null;
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private string _desc;
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public Pkcs9DocumentDescription ()
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{
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// Pkcs9Attribute remove the "set" accessor on Oid :-(
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(this as AsnEncodedData).Oid = new Oid (oid, friendlyName);
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}
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public Pkcs9DocumentDescription (string documentDescription)
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{
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if (documentDescription == null)
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throw new ArgumentNullException ("documentName");
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(this as AsnEncodedData).Oid = new Oid (oid, friendlyName);
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_desc = documentDescription;
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RawData = Encode ();
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}
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public Pkcs9DocumentDescription (byte[] encodedDocumentDescription)
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{
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if (encodedDocumentDescription == null)
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throw new ArgumentNullException ("encodedDocumentDescription");
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(this as AsnEncodedData).Oid = new Oid (oid, friendlyName);
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RawData = encodedDocumentDescription;
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Decode (encodedDocumentDescription);
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}
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public string DocumentDescription {
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get { return _desc; }
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}
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public override void CopyFrom (AsnEncodedData asnEncodedData)
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{
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base.CopyFrom (asnEncodedData);
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Decode (this.RawData);
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}
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// internal stuff
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internal void Decode (byte[] attribute)
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{
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if (attribute [0] != 0x04)
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return; // throw ?
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ASN1 attr = new ASN1 (attribute);
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byte[] str = attr.Value;
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int length = str.Length;
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if (str [length - 2] == 0x00)
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length -= 2; // zero-terminated (normal)
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_desc = Encoding.Unicode.GetString (str, 0, length);
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}
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internal byte[] Encode ()
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{
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// OCTETSTRING (0x04) Of the zero-terminated unicode string
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ASN1 attr = new ASN1 (0x04, Encoding.Unicode.GetBytes (_desc + (char)0));
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return attr.GetBytes ();
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}
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}
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}
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#endif
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