How to enable fingerprint device for Thinkpad L430 in Ubuntu 13.10

Supported readers (run command lsusb to find out the ID of your reader)
============
  045e:00bb        061a:0110        147e:1002
  045e:00bc        08ff:1600        147e:1003
  045e:00bd        08ff:2500        147e:2015
  045e:00ca        08ff:2580        147e:2016
  0483:2015        08ff:5501        147e:3000
  0483:2016        138a:0001        147e:3001
  05ba:0007        147e:1000        147e:5002
  05ba:0008        147e:1001        147e:5003
  05ba:000a

Installation

1. First of all, if you have installed Fingerprint GUI manually before, get rid of it completely. Remove all binaries, shared libraries, any other files and undo all the changes you have made to your system config files (especially to files under /etc/pam.d/).
2. Add this PPA to your sources:

   sudo add-apt-repository ppa:fingerprint/fingerprint-gui
   sudo apt-get update
   

3. Install the packages:

   sudo apt-get install libbsapi policykit-1-fingerprint-gui fingerprint-gui
   

4. Log out of your session and log back in (we need the new session defaults to be picked up).

Setup

After installation launch Fingerprint GUI (can be found under System > Preferences) and enrol your fingerprints.

That should be all you need to do!

Try locking your screen, logging out and in, sudo in terminal and running graphical apps requiring root privileges.