Lock user screen every time the flash drive is unplugged. Creating a two-step authentication on the machine

Every time you start the application, it initiates a process that is constantly verifying if the usb device is connected to the computer.

If the device could not be found, the program sends a message to the system in order to lock the screen. This way, you can only use the computer if you have the password and the flash drive

1. Flash drive
2. Computer running Windows or Linux (tested on Windows 7 and Arch Linux. Others distributions should work like charm)
3. Python 2 or 3 interpreter (Windows users can compile the application using py2exe)

• Edit the source in order to change the variables values

Only change the device name from flashDisk = "CHANGE_ME" to whatever is your device serial number

Windows users
The following command can be used to determinate the serial number

1. Verify if flash drive is connected

wmic logicaldisk get volumename

2. Get its serial number

wmic logicaldisk get volumeserialnumber

Linux users
The following command can be used

lsusb | cut -d " " -f 6-

Below the red thing you will find something like a1b2:3456. That's exactly the information you are looking for.

If not using Xscreensaver, please edit the following lines

49	#Lock screen
50	lock = ["xscreensaver-command", "-lock"]
51	
52	#Check if screen is locked
53	status = ["xscreensaver-command", "-time"]

• type python laufey.py and it's done

##License This program is distribuited under GPLv2 license. For more informations, read LICENSE