Grid card for two-factor authentication

I’ve been asked to develop a demonstration of two-factor authentication using a grid card (aka. bingo card) so I started researching a little bit on this and the only thing I could find is the following fork for the phpSec project,, which implements it.

So I downloaded the source code and assembled a very simple demonstration page hosted at

Some screenshots follows:

Source code at



Leave a Reply

Your email address will not be published. Required fields are marked *