private void Encrypt(object sender, RoutedEventArgs e)
{
bool fail = false;
if (Data_Box.Text == "")
{
Error_Box.Content = "Please enter some text\n";
fail = true;
}
this.text = Data_Box.Text;
if (filePath == "" || filePath == null)
{
Error_Box.Content += "Please select a file";
fail = true;
}
if ((entropyPath == "" || entropyPath == null) && isEntropyExternal == true)
{
Error_Box.Content += "Please select an entropy file";
fail = true;
}
if (fail == true)
{
return;
}
int ID = 0;
var rng = new Random();
Loop:
ID = rng.Next(int.MaxValue);
foreach (var item in SettingsPage.IDArray)
{
if (ID == item)
{
rng.Next(ID);
goto Loop;
}
}
using (var BinWriter = new BinaryWriter(File.Create(filePath)))
{
BinWriter.Write(ID);
}
entropyPath = DecryptPage.EntropyPath = String.Format(Environment.GetFolder(Environment.SpecialFolder.MyComputer) + @"\DataProtector\{0}", ID.ToString());
_LastLength = SecureDataProtector.ProtectDataToFile(Encoding.UTF8.GetBytes(text), filePath, entropyPath);
Application.Current.MainWindow.Content = new EncryptionSuccesfulPage();
}
private void Decrypt(object sender, RoutedEventArgs e)
{
var entropy = new byte[16];
int ID;
using (var BinReader = new BinaryReader(File.Open(filePath, FileMode.Open)))
{
ID = BinReader.ReadInt32();
EntropyPath += ID.ToString() + ".dat";
}
using (var BinReader = new BinaryReader(File.Open(EntropyPath, FileMode.Open)))
{
entropy = BinReader.ReadBytes(16);
}
long length = new FileInfo(filePath).Length;
data = SecureDataProtector.UnprotectDataFromFile(entropy, filePath, length);
Decrypted_Data_Box.Text = Encoding.UTF8.GetString(data);
}
