void WriteInternalEncryptedKeyIdentifierClause (
XmlWriter w, InternalEncryptedKeyIdentifierClause ic)
{
w.WriteStartElement ("o", "SecurityTokenReference", Constants.WssNamespace);
w.WriteStartElement ("o", "KeyIdentifier", Constants.WssNamespace);
w.WriteAttributeString ("ValueType", Constants.WssKeyIdentifierEncryptedKey);
w.WriteString (Convert.ToBase64String (ic.GetBuffer ()));
w.WriteEndElement ();
w.WriteEndElement ();
}
