A Graphical Interface for User Authentication on Mobile Phones

摘要

Recently, mobile phones have become an important tool to carry out financial transactions besides the normal communication. They are increasingly being used to make payments, access bank accounts and facilitate other commercial transactions. In view of their increased importance there is a compelling need to establish ways to authenticate people on the mobile phones. The current method for authentication uses alphanumeric username and password. The textual password scheme is convenient but suffers from various drawbacks. Alphanumeric passwords are most of the times easy to guess, vulnerable to brute force attacks and- are easily forgotten. With financial transactions at stake, the need of the hour is a collection of robust schemes for authentication. Graphical passwords are one of such schemes which offer a plethora of options and combinations. We are proposing a scheme which is simple, secure and robust. The proposed graphical password scheme will provide a large password space and at the same time will facilitate memorability. It is suitable to implement on all touch sensitive mobile phones.