2 // CipherReference.cs - CipherReference implementation for XML Encryption
3 // http://www.w3.org/2001/04/xmlenc#sec-CipherReference
6 // Tim Coleman (tim@timcoleman.com)
8 // Copyright (C) Tim Coleman, 2004
11 // Permission is hereby granted, free of charge, to any person obtaining
12 // a copy of this software and associated documentation files (the
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.
22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
35 namespace System.Security.Cryptography.Xml {
36 public sealed class CipherReference : EncryptedReference {
40 public CipherReference ()
45 public CipherReference (string uri)
50 public CipherReference (string uri, TransformChain tc)
55 #endregion // Constructors
59 public override XmlElement GetXml ()
61 return GetXml (new XmlDocument ());
64 internal override XmlElement GetXml (XmlDocument document)
66 XmlElement xel = document.CreateElement (XmlEncryption.ElementNames.CipherReference, EncryptedXml.XmlEncNamespaceUrl);
68 xel.SetAttribute (XmlEncryption.AttributeNames.URI, Uri);
70 if (TransformChain != null && TransformChain.Count > 0) {
71 XmlElement xtr = document.CreateElement (XmlEncryption.ElementNames.Transforms, EncryptedXml.XmlEncNamespaceUrl);
72 foreach (Transform t in TransformChain)
73 xtr.AppendChild (document.ImportNode (t.GetXml (), true));
74 xel.AppendChild (xtr);
80 public override void LoadXml (XmlElement value)
83 throw new ArgumentNullException ("value");
84 if ((value.LocalName != XmlEncryption.ElementNames.CipherReference) || (value.NamespaceURI != EncryptedXml.XmlEncNamespaceUrl))
85 throw new CryptographicException ("Malformed CipherReference element.");