Active Attack Detection and Unavailability over ALERT Protocol in MANET

Abstract

Mobile Ad-Hoc Network (MANET) is a temporary network, consists of several wireless moving nodes, has no infrastructure or centralized access point such as base station. Security is the big issue in MANET because of its nature of openness, dynamic topology, decentralized monitoring. Anonymity is to hide the subjects among another. Anonymity is one of the solutions to avoid the attacks on the network. Anonymous Location based Efficient Routing proTocol (ALERT) which provides anonymity protection for sources, destinations and routes. It also effectively counters intersection and timing attacks. ALERT is not bulletproof to all attacks like availability and active attacks and existing solutions for active attacks had not provided anonymity protection. In this paper ALERT-APD (ALERT- Assured Packet Delivery algorithm) is proposed for availability attack and ALERT-S (ALERT Security) is for active attack detection over ALERT protocol in MANET. As in this paper MANET is protected from active attack over ALERT protocol, system will give twenty five percent more effective security and anonymity protection than existing system.