Abstract:
The problem with all the previous alphanumeric and graphical passwords is that
they are prone to shoulder-surfing. For this, we intend to bring an Implementation of
Convex Hull Click (CHC) Graphical Password Scheme into use which is shouldersurfing
resistant and is more psychologically acceptable. It uses graphical icons as
password instead of characters. The user is shown a grid of random icons placed
randomly and the user has to click inside the imaginary convex hull formed by his/her
password icons among those random icons. Since the convex hull formed is invisible,
anyone prying on the user’s input will have no idea where the clickable area resides.
This factor is the backbone of the shoulder-surfing resistance property of the CHC
scheme.
The project aims to bring in an implementation as a lock screen application for
Android phones, Ubuntu and as Laravel Module. The lock screen uses CHC as its
authentication mechanism and encrypts the user’s data for security.
