// (c) 2006 Richard Grimes
// www.grimes.demon.co.uk

using System;
using System.Security.Cryptography;
using System.Xml;
using System.Text;

class App
{
   static void Main(string[] args)
   {
      if (args.Length == 0) return;
      XmlDocument doc = new XmlDocument();
      doc.Load(args[0]);
      XmlNodeList nodes = doc.SelectNodes(
         "configuration/appSettings/EncryptedData/CipherData/CipherValue");
      byte[] buf = Convert.FromBase64String(nodes[0].InnerXml);
      byte[] unenc = ProtectedData.Unprotect(buf, null, DataProtectionScope.CurrentUser);
      Console.WriteLine(Encoding.Unicode.GetString(unenc));
   }
}