C#

Dear All, 

i want to encrypt / decrypt a string that can be of any length to maximum 10 random characters only,

i tried a lots of encryption / decryption algorithms but all gives very long encrypted string, appreciate if anyone can share to limit the encryption string to only 10 characters provided these characters to be random each time.

Many Thanks in Advance..... 

<pre>private void saveToPng_Click(object sender, RoutedEventArgs e)
        {

            string filePath = Environment.CurrentDirectory;
            var control = this.Control;

            RenderTargetBitmap rtb = new RenderTargetBitmap((int)control.ActualWidth, (int)control.ActualHeight, 96, 96, PixelFormats.Pbgra32);
            Rect bounds = VisualTreeHelper.GetDescendantBounds(control);
            DrawingVisual dv = new DrawingVisual();
            using (DrawingContext ctx = dv.RenderOpen())
            {
                VisualBrush vb = new VisualBrush(control);
                ctx.DrawRectangle(vb, null, new Rect(new Point(), bounds.Size));
            }
            rtb.Render(dv);

            PngBitmapEncoder png = new PngBitmapEncoder();
            png.Frames.Add(BitmapFrame.Create(rtb));

            using (Stream fileStream = new FileStream(filePath+"test.png", FileMode.Create))
            {
                png.Save(fileStream);
            }
        }

public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}

private void Form1_Load(object sender, EventArgs e)
{

}

private void cmdLotto_Click(object sender, EventArgs e)
{
Form = new Form(LottoConverter);
Form.ShowDialog();
}

private void cmdEuro_Click(object sender, EventArgs e)
{
Form = new Form(EuroConverter); 
Form.ShowDialog();