[Gnuk-users] Hardware PIN pad

[Jonathan McDowell]

On Tue, Dec 13, 2016 at 01:04:37PM +0900, perillamint wrote:
> About 1yrs ago, I tried to integrate UART fingerprint scanner to GnuK
> firmware. 
> 
> I forked chopstx to add UART driver and added fingerprint scanner as
> pin input device to GnuK.

Looking at the GT-511C1R datasheet I can't see any sign of security in
the protocol that it uses. It looks like there's a simple yes/no option,
and a "tell me who it is" option, but no way that the device confirms
it's the device you think it is, or a nonce to prevent replay attacks.

J.

-- 
I don't know. I'm a dog.