public static void DecryptFile(string file)
{
byte[] bytesToBeDecrypted = File.ReadAllBytes(file);
byte[] passwordBytes = Encoding.UTF8.GetBytes(password);
passwordBytes = SHA256.Create().ComputeHash(passwordBytes);
byte[] bytesDecrypted = Crytographer.AES_Decrypt(bytesToBeDecrypted, passwordBytes);
File.WriteAllBytes(file, bytesDecrypted);
}
public static void Save()
{
System.Xml.Serialization.XmlSerializer x = new System.Xml.Serialization.XmlSerializer(QBank.GetType());
TextWriter tw = new StreamWriter(FileName);
x.Serialize(tw, QBank);
tw.Close();
if (ConfigurationManager.AppSettings["Encrypt"] == "1")
{
Crytographer.EncryptFile(FileName);
}
}
public static void Load()
{
if (ConfigurationManager.AppSettings["Encrypt"] == "1")
{
Crytographer.DecryptFile(FileName);
}
// Create an instance of the XmlSerializer specifying type.
XmlSerializer serializer = new XmlSerializer(typeof(QuestionBank));
// Create a TextReader to read the file.
FileStream fs = new FileStream(FileName, FileMode.OpenOrCreate);
TextReader reader = new StreamReader(fs);
// Use the Deserialize method to restore the object's state.
QBank = (QuestionBank)serializer.Deserialize(reader);
reader.Close();
}
