public void Close()
{
if (yk != IntPtr.Zero)
{
bool ret = YubiWrapper.yk_close_key(yk) == 1;
if (!ret || YubiWrapper.yk_release() != 1)
{
throw new Exception("Error closing Yubikey");
}
}
}
private void OnFormLoad(object sender, EventArgs e)
{
ControlBox = false;
progressBar.Maximum = 15;
progressBar.Minimum = 0;
progressBar.Value = 15;
yubi = new YubiWrapper();
try
{
while (!yubi.Init())
{
YubiPrompt prompt = new YubiPrompt();
DialogResult res = prompt.ShowDialog();
if (res != DialogResult.Retry)
{
RecoveryMode = prompt.RecoveryMode;
DialogResult = DialogResult.Abort;
return;
}
}
}
catch (PlatformNotSupportedException err)
{
Debug.Assert(false);
MessageBox.Show(err.Message, "Error", MessageBoxButtons.OK);
return;
}
//spawn background countdown timer
countdown = new Timer();
countdown.Tick += Countdown;
countdown.Interval = 1000;
countdown.Enabled = true;
keyWorker = new BackgroundWorker();
keyWorker.DoWork += YubiChallengeResponse;
keyWorker.RunWorkerCompleted += KeyWorkerDone;
keyWorker.RunWorkerAsync();
}
private void YubiChallengeResponse(object sender, DoWorkEventArgs e) //Should terminate in 15seconds worst case
{
//Send the challenge to yubikey and get response
if (Challenge == null)
{
return;
}
if (yubiSlot == YubiSlot.AUTO)
{
//Code to automatically check which slot the hmac is setup
YubiWrapper y = new YubiWrapper();
if (y.Init())
{
int ySlot = y.DetectSlot();
if (ySlot > 0)
{
yubiSlot = (YubiSlot)(ySlot);
}
}
}
int slot = (int)yubiSlot;
slot = 2;
if (slot == 0)
{
MessageBox.Show("Error, no Challenge Response Config Detected", "Error");
return;
}
success = yubi.ChallengeResponse(slot - 1, Challenge, out m_response);
if (!success)
{
MessageBox.Show("Error getting response from Yubikey", "Error");
}
return;
}