An Efficient IDS for MANETs using EAACK

Abstract: A mobile ad hoc network (MANET) is a continuously self-administering, less-infrastructure network of mobile devices connected without wires. Each device in a MANET is free to move independently in more directions, and it can change its links to other devices frequently. The general challenge in building a MANET is equipping each device to continuously maintain the information required to its route traffic. Such networks may operate by itself or may be connected to the larger Internet. Every node works as both a transmitter and a receiver. They may contain one or multiple and different transceivers between nodes. This results in a highly – dynamic, autonomous topology .on individual layer like Application Layer (Malicious code, Repudiation) , Transport Layer(Session hijacking, Flooding ) attacks on MANETs challenge the mobile infrastructure in which nodes can join and leave easily with dynamics requests without a static path of routing this makes mantes vulnerable to a malicious attackers. we need to develop efficient intrusion-detection mechanisms to protect MANET from attacks. To overcome attacks on Mantes we have to provide more security by expanding MANETS into industrial applications based on improved technology and reduced hardware cost. Here we developed a new intrusion-detection system named Enhanced Adaptive Acknowledgment (EAACK) specially designed for MANETs has been developed. EAACK demonstrates higher malicious-behaviour- detection rates in certain circumstances while does not greatly affect the network performances.

Keywords: Digital signature, digital signature algorithm (DSA), Enhanced Adaptive Acknowledgment (AACK) (EAACK), Mobile Ad hoc Network (MANET), Intrusion Detection System (IDS).