private void DecryptionFile_Select_Button_Click(object sender, RoutedEventArgs e)
 {
     Private_Key = FileOperation.UploadFiles(Private_Key);
     DecryptionFile_Select_Label.Content = "Upload Succeed!";
 }
 private void BigInteger_Select_Button_Click(object sender, RoutedEventArgs e)
 {
     BigInteger_n             = FileOperation.UploadFiles(BigInteger_n);
     BigInteger_Label.Content = "Upload Succeed!";
 }
 private void TextFile_Select_Button_Click(object sender, RoutedEventArgs e)
 {
     Decryption_Text = FileOperation.UploadFiles(Decryption_Text);
     TextFile_Select_Label.Content = "Upload Succeed!";
 }