Encrypted card login

[Harmon Seaver <hseaver@xxxxxxxxx>]

   Forgive me, I've not been paying attention to linux crypto for quite 
some time, but perhaps someone could refresh my memory a bit.
    What would be the best way to have a login on a linux box done not 
by a simple password, but by using a memory stick, sd card, or whatever 
with an encrypted key on it, which, perhaps, would also require a short 
PIN number? Sort of like doing an ATM login.


--
Harmon Seaver

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Linux-crypto:  cryptography in and on the Linux system
Archive:       http://mail.nl.linux.org/linux-crypto/