DESIGN MODEL FOR TWO SERVER PASSWORD ONLY AUTHENTICATED PROTOCOL

It is very unsecure when one server is used for the authentication purpose, as if there is one server all stored passwords can be easily hacked by attacker or dictionary attack may happen. The stored information can be stolen by the hacker, so its need for any alternative method one of the methods is to use two servers for the authentication purpose. In this paper described a design model for two server password only authenticated protocol. Basically used Diffie-Hellman and Elgamal encryption scheme. Also backup facility also provided here. As two types of technique are there one is Symmetric and another one is Asymmetric. In this paper used symmetric Method. Symmetric in the sense that two server equally contribute to each other for the authentication purpose. Here it is very important to note that if one server fails or shut down due to some reason then another server should continue to provide services to the clients. It is a web based approach.