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@@ -0,0 +1,204 @@
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+//
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+// EncryptedKey.cs - EncryptedKey implementation for XML Encryption
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+// http://www.w3.org/2001/04/xmlenc#sec-EncryptedKey
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+//
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+// Author:
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+// Tim Coleman ([email protected])
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+//
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+// Copyright (C) Tim Coleman, 2004
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+
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+#if NET_1_2
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+
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+using System.Xml;
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+
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+namespace System.Security.Cryptography.Xml {
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+ public sealed class EncryptedKey : EncryptedType {
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+
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+ #region Fields
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+
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+ string carriedKeyName;
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+ string recipient;
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+ ReferenceList referenceList;
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+
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+ #endregion // Fields
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+
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+ #region Constructors
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+
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+ public EncryptedKey ()
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+ : base ()
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+ {
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+ CarriedKeyName = null;
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+ Recipient = null;
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+ ReferenceList = new ReferenceList ();
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+ }
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+
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+ #endregion // Constructors
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+
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+ #region Properties
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+
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+ public string CarriedKeyName {
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+ get { return carriedKeyName; }
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+ set { carriedKeyName = value; }
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+ }
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+
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+ public string Recipient {
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+ get { return recipient; }
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+ set { recipient = value; }
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+ }
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+
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+ public ReferenceList ReferenceList {
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+ get { return referenceList; }
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+ set { referenceList = value; }
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+ }
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+
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+ #endregion // Properties
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+
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+ #region Methods
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+
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+ public void AddReference (DataReference dataReference)
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+ {
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+ ReferenceList.Add (dataReference);
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+ }
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+
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+ public void AddReference (KeyReference keyReference)
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+ {
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+ ReferenceList.Add (keyReference);
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+ }
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+
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+ public override XmlElement GetXml ()
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+ {
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+ return GetXml (new XmlDocument ());
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+ }
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+
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+ internal XmlElement GetXml (XmlDocument document)
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+ {
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+ if (CipherData == null)
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+ throw new CryptographicException ("Cipher data is not specified.");
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+
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+ XmlElement xel = document.CreateElement (XmlEncryption.ElementNames.EncryptedData, EncryptedXml.XmlEncNamespaceUrl);
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+
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+ if (EncryptionMethod != null)
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+ xel.AppendChild (EncryptionMethod.GetXml (document));
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+ if (KeyInfo != null)
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+ xel.AppendChild (document.ImportNode (KeyInfo.GetXml (), true));
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+ if (CipherData != null)
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+ xel.AppendChild (CipherData.GetXml (document));
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+
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+ if (EncryptionProperties.Count > 0) {
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+ XmlElement xep = document.CreateElement (XmlEncryption.ElementNames.EncryptionProperties, EncryptedXml.XmlEncNamespaceUrl);
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+ foreach (EncryptionProperty p in EncryptionProperties)
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+ xep.AppendChild (p.GetXml (document));
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+ xel.AppendChild (xep);
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+ }
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+
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+ if (ReferenceList.Count > 0) {
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+ XmlElement xrl = document.CreateElement (XmlEncryption.ElementNames.ReferenceList, EncryptedXml.XmlEncNamespaceUrl);
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+ foreach (EncryptedReference er in ReferenceList)
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+ xrl.AppendChild (er.GetXml (document));
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+ xel.AppendChild (xrl);
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+ }
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+
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+ if (CarriedKeyName != null) {
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+ XmlElement xck = document.CreateElement (XmlEncryption.ElementNames.CarriedKeyName, EncryptedXml.XmlEncNamespaceUrl);
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+ xck.InnerText = CarriedKeyName;
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+ xel.AppendChild (xck);
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+ }
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+
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+ if (Id != null)
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+ xel.SetAttribute (XmlEncryption.AttributeNames.Id, Id);
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+ if (Type != null)
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+ xel.SetAttribute (XmlEncryption.AttributeNames.Type, Type);
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+ if (MimeType != null)
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+ xel.SetAttribute (XmlEncryption.AttributeNames.MimeType, MimeType);
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+ if (Encoding != null)
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+ xel.SetAttribute (XmlEncryption.AttributeNames.Encoding, Encoding);
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+ if (Recipient != null)
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+ xel.SetAttribute (XmlEncryption.AttributeNames.Recipient, Recipient);
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+ return xel;
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+ }
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+
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+ public override void LoadXml (XmlElement value)
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+ {
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+ if (value == null)
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+ throw new ArgumentNullException ("value");
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+
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+ if ((value.LocalName != XmlEncryption.ElementNames.EncryptedKey) || (value.NamespaceURI != EncryptedXml.XmlEncNamespaceUrl))
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+ throw new CryptographicException ("Malformed EncryptedKey element.");
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+ else {
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+ EncryptionMethod = null;
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+ KeyInfo keyInfo = null;
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+ CipherData cipherData = null;
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+ EncryptionMethod = null;
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+ EncryptionProperties = new EncryptionProperties ();
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+ ReferenceList = new ReferenceList ();
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+ CarriedKeyName = null;
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+ Id = null;
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+ Type = null;
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+ MimeType = null;
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+ Encoding = null;
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+ Recipient = null;
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+
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+ foreach (XmlNode n in value.ChildNodes) {
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+ if (n is XmlWhitespace)
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+ continue;
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+
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+ switch (n.LocalName) {
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+ case XmlEncryption.ElementNames.EncryptionMethod:
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+ EncryptionMethod = new EncryptionMethod ();
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+ EncryptionMethod.LoadXml ((XmlElement) n);
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+ break;
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+ case XmlSignature.ElementNames.KeyInfo:
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+ KeyInfo = new KeyInfo ();
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+ KeyInfo.LoadXml ((XmlElement) n);
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+ break;
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+ case XmlEncryption.ElementNames.CipherData:
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+ CipherData = new CipherData ();
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+ CipherData.LoadXml ((XmlElement) n);
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+ break;
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+ case XmlEncryption.ElementNames.EncryptionProperties:
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+ foreach (XmlElement element in ((XmlElement) n).GetElementsByTagName (XmlEncryption.ElementNames.EncryptionProperty, EncryptedXml.XmlEncNamespaceUrl))
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+ EncryptionProperties.Add (new EncryptionProperty (element));
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+ break;
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+ case XmlEncryption.ElementNames.ReferenceList:
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+ foreach (XmlNode r in ((XmlElement) n).ChildNodes) {
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+ if (child is XmlWhitespace)
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+ continue;
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+
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+ switch (child.LocalName) {
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+ case XmlEncryption.ElementNames.DataReference:
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+ DataReference dr = new DataReference ();
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+ dr.LoadXml ((XmlElement) r);
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+ AddReference (dr);
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+ break;
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+ case XmlEncryption.ElementNames.KeyReference:
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+ KeyReference kr = new KeyReference ();
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+ kr.LoadXml ((XmlElement) r);
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+ AddReference (kr);
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+ break;
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+ }
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+ }
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+ break;
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+ case XmlEncryption.ElementNames.CarriedKeyName:
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+ CarriedKeyName = ((XmlElement) n).InnerText;
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+ break;
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+ }
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+ }
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+
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+ if (value.HasAttribute (XmlEncryption.AttributeNames.Id))
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+ Id = value.Attributes [XmlEncryption.AttributeNames.Id].Value;
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+ if (value.HasAttribute (XmlEncryption.AttributeNames.Type))
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+ Type = value.Attributes [XmlEncryption.AttributeNames.Type].Value;
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+ if (value.HasAttribute (XmlEncryption.AttributeNames.MimeType))
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+ MimeType = value.Attributes [XmlEncryption.AttributeNames.MimeType].Value;
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+ if (value.HasAttribute (XmlEncryption.AttributeNames.Encoding))
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+ Encoding = value.Attributes [XmlEncryption.AttributeNames.Encoding].Value;
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+ if (value.HasAttribute (XmlEncryption.AttributeNames.Recipient))
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+ Encoding = value.Attributes [XmlEncryption.AttributeNames.Recipient].Value;
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+ }
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+ }
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+
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+ #endregion // Methods
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+ }
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+}
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+
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+#endif
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