Model Construction And Authentication Algorithm Of Virtual Keystroke Dynamics For Smart Phone Users

This paper focuses on account stolen case of smart phone users. In order to enhance the credibility of user authentication, an authentication method based on virtual keystroke dynamics behavior of touch screen is proposed in this paper. The proposed method extracts time dependent characteristics and pressure related characteristics of users' virtual keystroke dynamics behavior, builds combined authentication model by RBF networks, checks whether the virtual keystroke dynamics behavior of current user matches that of expected user to authenticate user's identity. The experiment shows that the proposed method has the expected result.