International Journal of Engineering and Technology
Authentication of remote user and server is a great research challenge in today's advanced wired and wireless communication. Recently the researcher proposed a flexible remote system authentication using smart card proved that fingerprint based remote user authentication is vulnerable to the impersonation and parallel session attack. In this paper, the authors show that the researcher scheme is not withstand the reverse XOR and adversary system attack. They also propose an improved remote user and server authentication that verifies the authenticity of user by user's password, smart card and biometric property of user.