Android Wifi password locations

The other day, I realised that I had forgotten my WiFi network password back at home.

The easy way to fix this would have been to use an already connected PC to access the router and change the password there, or to use an application like WirelessKeyView to recover the password of the said PC.

If I used method 1, I'd have to give the key to my housemates, which adds a bit of hassle.

When I tried method 2, the PC I was using was running XP I got a hex string which is not very user friendly (XP automatically converts WPA-PSK keys to a 64bit non-(easily?) reversible hash).

I then decided to try to get the key off my (rooted) Desire Z. Easy enough, the passwords are stored in plaintext in the following file:

/data/misc/wifi/wpa_supplicant.conf  

I then wrote a quick application to make the extraction a bit more painless (links at the bottom of the post), but when I was testing it on my Galaxy Tab, I realised that the file was not there. After a bit of digging around, I found the passwords here:

/data/wifi/bcm_supp.conf  

Also, here is the location of the file on the Streakroid ROM (this could be the default for all Dell Streaks, but as I don't have one I can't check):

/data/misc/wifi/wpa.conf  

The formatting of the files is identical and can be found here: http://linux.die.net/man/5/wpa_supplicant.conf, but the location is different (based on the whims of each developer/company I guess).

To access the files, you need root permissions.

Application Links:

• Market Link: https://market.android.com/details?id=aws.apps.wifiKeyRecovery
• Github Page: https://github.com/alt236/Wifi-Key-Recovery---Android
• Webpage: http://aschillings.co.uk/html/wifi_key_recovery.html

If anyone has a device on which the app does not work, do two things:

1. Make sure you are rooted.
2. If you are certain you are rooted and it still does not work, email me (my email can be found here: http://aschillings.co.uk/html/contact.html).

I have no way to contact you if you post anonymously in the comments section!