A Resilient Two - Server Authentication Mechanism for Enhancing Security in Grid Environment

Most of the familiar protocols use single server for storing all the needed information to authenticate a user. Maintenance of security is of primary importance in any computing environment. Safe and effective authentication mechanism and evaluation methods of the entity are of utmost importance for the grid users to facilitate legitimate utilization of resources. It improves the legal user's credit rating and shields the system from illegal users. However the efficiency of the grid systems still requires improvement as exchanging certificates and verifying validity are compulsory. These systems are also infested by masquerade attacks. In this paper, we propose a resilient Authentication Architecture for Security, where authentication is based on strengthening parameters like variance and product. When a single server is compromised, a large number of user passwords, will be exposed. Our proposed approach uses an authentication protocol in order to improve the security in grid environment. The protocol utilizes fundamental concepts of triangle. Based on the parameters of the triangle the user authentication will be performed. In the proposed protocol, the password is interpreted and alienated into more than two units and these units are stored in two different servers. The privilege of accessing the requested resources is obtained by the user only when the combined authentication scheme from both the servers authenticates the user. The main advantage of utilizing the authentication protocol in computing is that an adversary user cannot attain the access privilege by compromising a single consolidated server because of the fact that split password is stored in two different servers. For flexibility and reusability this authentication mechanism is hosted as service in grid environment. Keywords-Two – Server Authentication, grid security, Attacks.