private void button1_Click(object sender, EventArgs e)
{
/* Client get the encrypted Key CS from Ticket Granting Server
* */
f.printProcess("\n\nGet Encrypted CS Key from Ticket Granting Server", ncolor);
textBox1.Text = p.getCSKey();//user get encrypted key from TGSserver
button6.Enabled = true;
button1.Enabled = false;
}