smart card login system

[Tomoki Taniguchi]

I am trying to find instructions on replacing/augmenting the login
procedure by using a smart card reader.

I want to either replace the standard username and password login
system completely,
or augment the system by requiring the insertion of the smart card
pior to being able to login

Can anyone help me find instructions on how to get this to work with ubuntu?


TIA
Tomoki Taniguchi