/// <summary>
/// Decodes package from base-64 string with XML serialized value.
/// </summary>
/// <param name="cryptedXml">Base-64 string of XML serialized value.</param>
/// <returns>Authentication package.</returns>
public static AuthenticationPackage FromXml(string cryptedXml)
{
byte[] cryptedBinary = Convert.FromBase64String(cryptedXml);
Cryptographer cryptographer = new Cryptographer(EncryptionKey);
List <byte> xmlBinary = cryptographer.Decrypt(cryptedBinary).ToList();
xmlBinary.RemoveAt(xmlBinary.Count - 1);
string xmlString = XmlEncoding.GetString(xmlBinary.ToArray());
XmlSerializer serializer = new XmlSerializer(typeof(AuthenticationPackage));
using (StringReader reader = new StringReader(xmlString))
{
try
{
return((AuthenticationPackage)serializer.Deserialize(reader));
}
catch (InvalidOperationException)
{
return(null);
}
}
}
/// <summary>
/// Serializes package to XML and encodes result to base-64 string.
/// </summary>
/// <returns>Base-64 string with XML representaton of package.</returns>
public string ToXml()
{
XmlSerializer serializer = new XmlSerializer(this.GetType());
using (StringWriter writer = new StringWriter())
{
serializer.Serialize(writer, this);
string xmlString = writer.ToString();
List <byte> xmlBinary = XmlEncoding.GetBytes(xmlString).ToList();
xmlBinary.Add(Salt);
Cryptographer cryptographer = new Cryptographer(EncryptionKey);
byte[] cryptedBinary = cryptographer.Encrypt(xmlBinary.ToArray());
return(Convert.ToBase64String(cryptedBinary));
}
}
