What is Attacks

The pervasiveness of wireless communication recently gave mobile ad hoc networks (MANET) significant researchers’ attention, due to its innate capabilities of instant communication in many time and mission critical applications. However, its natural advantages of networking in civilian and military environments make it vulnerable to security threats. Support for anonymity in MANET is orthogonal to a critical security challenge we faced in this chapter. We propose a new anonymous authentication protocol for mobile ad hoc networks enhanced with a distributed reputation system. The main objective is to provide mechanisms concealing a real identity of communicating nodes with an ability of resistance to known attacks. The distributed reputation system is incorporated for a trust management and malicious behaviour detection in the network.