private void openFileDialog_FileOk(object sender, CancelEventArgs e)
{
//don't check larger files
if (new FileInfo(openFileDialog.FileName).Length > 4 * 4 * 1024 || !PrivateKeyFile.IsValid(openFileDialog.FileName))
{
MessageBox.Show(this,
"File doesn't seem to be a valid private key file", Text);
e.Cancel = true;
}
}
