Bruce Schneier has an article on vein patterns for biometric uses.
The property I like best is that nature provides the ultimate dead-detection: dead tissue will transform rather rapidly to a form that will not let the light through. I think I’ve seen one of these devices and if it was a proper one at least it’s as easy to use as a fingerprint scanner. But it will be a lot more difficult to use it on your laptop.
Technorati Tags: Biometrics
Continuous improvement 