I'm in the process of setting up a laptop and I would like to secure the data on it with some kind of two-factor authentication. I have surfed around for some days to get an idea of whats out there.
Ideally I would like a contact-less authentication, i.e. the computer unlocks when I'm within 1-2 meters from the computer, using a Key fob of some kind.
However I have not found a system suitable to do this.
So, I'm planning for a SmartCard solution using an AES-256 challenge-response algorithm.
Any recommendations for such a set-up? What should I look out for? Reader? Card?