public void LoadXamlFile(string filename, string password = null)
{
try
{
using (XmlReader xmlReader = XmlReader.Create(filename))
{
XDocument xDocument = XDocument.Load(xmlReader);
if (xDocument.Root.Name != "Encrypted")
{
throw new ArgumentException("The file is not in the correct format. Expected 'Encrypted' as root node.");
}
var fileData = xDocument.Root.Value;
var decryptedData = RijndaelAES.Decrypt(password, fileData, Encoding.CharacterEncoding.Base64, true);
using (TextReader reader = new StringReader(decryptedData))
{
var workflow = ActivityXamlServices.Load(reader);
XamlDocument = workflow;
}
}
}
catch (Exception)
{
throw;
}
}
public void WriteXamlFile(string filename, string data, string password = null)
{
try
{
string encryptedData = RijndaelAES.Encrypt(password, data, Encoding.CharacterEncoding.Base64, true);
XDocument xDocument = new XDocument();
xDocument.AddFirst(new XElement("Encrypted", encryptedData));
xDocument.Save(filename, SaveOptions.None);
}
catch (Exception)
{
throw;
}
}