Date Added: May 2012
Remote authentication is the most commonly used method to determine the identity of a remote client. Secure and efficient authentication scheme has been a very important issue with the development of networking technologies. In a Generic Framework for Authentication, preserving security and privacy in distributed systems provide three factors for authentication of clients. This paper investigates a systematic approach for authenticating clients by five factors, namely RFID card, PIN, biometrics, One Time Password (OTP) and keypad ID.