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Advanced Encryption Standard is the security based algorithm used to protect the data from the attackers.In this paper, Optimized Inverse MixColumn transformation has been designed with the help of Xtime multiplication process. Xtime multiplication performs the multiplication function for ‘m X m’ data; results will be m-bit data. Further the complexity of Xtime multiplication process has been identified and re-designed with the help of effective CSE techniques. Developed Reduced Xtime based optimized Inverse MixColumn transformation provide better performances than traditional Xtime based Inverse MixColumn multiplication.

Many sorts of servers exists which incorporates both openly available servers and inside servers, for example, mail servers, web servers, application servers, assemble and test servers and so forth., that store numerous private and delicate data. Giving security to such servers has turned out to be one of the center necessities in this day and age as they are under danger of assault. The information put away on the server can go from hierarchical data, for example, classified client related records, extend subtle elements, company's product source code to private media data, individual information, national security related data, patients database, address papers of the focused exams and so forth. On the off chance that such delicate information gets into wrong hands, it can be abused. Along these lines the business and the notoriety of the association would beat stake. It can likewise posture risk to countries. The fundamental reasons of security break in servers is because of the utilization of versatile stockpiling gadgets, for example, pen drives, hard circles, and so on., which can be potential transporters of malware and Trojans. At the point when tainted by such infection, these compact stockpiling gadgets can bring about serious harm. Physically keeping up and securing servers would be extremely troublesome and can likewise prompt tremendous authoritative overhead. Henceforth the requirement for computerized security system to distinguish, keep and shield the servers from the aggressors. Security strategies assume a critical part in keeping the trade off of system security which would influence the server security.