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Robust Security System for Critical Computers

Among the various means of available resource protection including biometrics, password based System is most simple, user friendly, cost effective and commonly used, but this System having high sensitivity with attacks. Most of the advanced methods for authentication based on password encrypt the contents of password before storing or transmitting in physical domain. But all conventional cryptographic based encryption methods are having its own limitations, generally either in terms of complexity, efficiency or in terms of Security. In this paper a simple method is developed that provide more secure and efficient means of authentication, at the same time simple in design for critical Systems. Apart from protection, a step toward perfect Security has taken by adding the feature of intruder detection along with the protection System. This is possible by merging various Security Systems with each other i.e password based Security with keystroke dynamic, thumb impression with retina scan associated with the users. This new method is centrally based on user behavior and users Related Security System, which provides the robust Security to the critical Systems with intruder detection facilities.