I use Ubuntu 12.04.1
I try iwlist, but it is what I have:
user@comp-1:~$ sudo iwlist wlan0 keys
wlan0 2 key sizes : 40, 104bits
4 keys available :
[1]: off
[2]: off
[3]: off
[4]: off
Current Transmit Key: [1]
user@comp-1:~$ sudo iwlist wlan0 wpakeys
wlan0 2 key sizes : 40, 104bits
4 keys available :
Error reading wpa keys (SIOCGIWENCODEEXT): Operation not supported
I want know WPA key for give it to wpa_supplicant. I tried use wpa_passphrase, but I have follow line in log:
WPA: 4-Way Handshake failed - pre-shared key may be incorrect