New Graphic Password Scheme Containing Questions-Background-Pattern and Implementation

Security of authentication is needed to be provided superlatively to secure users' personal and exchange information since online information exchange systems have been developed according to internet speed. Therefore, the aim of this paper is to develop existing graphical password scheme based on one's memory, create and implement a new graphical password scheme that composed of three layer verification. We programmed our scheme in order to prove its superiority comparing with existing schemes. While we conducted survey on user by accessing participant to our system lied in participants' local network and we analyzed in accordance with the average length of their created password and statistical significant of entropy bit. From the survey results of total participants, we find that our scheme has statistical significant, furthermore it was proved that it can secure from a variety of attacks due to its high entropy.