Risk Assessment for Identifying Intrusion in Manet

In this paper we have taken one of the most amazing network concepts which makes network simpler. By considering the aspect of both side as of good and its related issues like most important and unavoidable is i.e. "Security". Hence, enhancing the security in wireless networks has become of vital importance. In this perspective of concept, we mainly study two security aspects of wireless networks. One is service confidentiality and access control that is to ensure only legitimate users can access service data according to their privileges and in other perspective is of service attack. Wireless broadcast is a convenient and effective approach for disseminating data to a number of users. User training in computer and network security is crucial to the survival of modern networks, yet the methods employed to train users often seem ineffective. The secrecy issues in the context of mandatory and discretionary access control in a multilevel networked environment. Hence of, we stressed on two aspects key management scheme is proposed to address secrecy and efficiency in broadcast services, where keys are used for service confidentiality and access control.