[fprint] Using fprint for logging into user or root

[Brian Peregrine]

Hi Hadess,

On my linux system (live cd), I need to make a new password on bootup
for any users, root, ....
I was thinking of the possibility to use fingerprint identification
instead, to make this a bit safer and also more convenient.
Some questions though:

* how long does it take to identify a fingerprint (setting new
fingerprint for user) ? Speed is essential as it needs to happen fresh
every bootup.
* can it be used to identify the user / root at all (su command ?)
* how "heavy" is gentoo's fprintd package (and what are the dependencies) ?