A Survey of Security Issues in MANET

Mobile Ad hoc Networks are widely used in defense applications where traditional wireless network is difficult to implement as the network is formed by autonomous and decentralized wireless nodes. Privacy and Security in MANET are the most important disquiet for basic functionality of the network. Security is the major challenge in MANETs because of its characteristics like resource constraints, open medium, lack of fixed infrastructure, dynamism of topology and no clear security mechanism. As the topology is dynamic, routing process is very difficult. So MANET often suffers from routing attacks. In this paper, I provide a brief survey of attacks in MANET.