sudo add-apt-repository -y ppa:pi-rho/security; sudo apt-get update; sudo apt-get install -y aircrack-ng
reaver
Using reaver to test your security:
1)Set up an interface in aircrack on wlan0: if you are not sure of the name of the interface, type ifconfig at the command prompt and look for a wlanX
sudo airmon-ng start wlan0
2) Get the mac address of your own AP
sudo airodump-ng mon0
Look for the name of your AP and copy the mac down.
3) Run reaver and sit back:
sudo reaver -a -i mon0 -b