Survey on Security Issues and Secure Protocols for Manet

Abstract

A mobile ad-hoc network (MANET) is a self-configuring network of mobile routers (and associated hosts) connected by wireless links the union of which form an arbitrary topology. The routers are free to move randomly and organize themselves arbitrarily; thus, the network's wireless topology may change rapidly and unpredictably. Many of the ad hoc routing protocols that address security issues rely on implicit trust relationships to route packets among participating nodes. Besides the general security objectives like authentication, confidentiality, integrity, availability and non-repudiation, the ad hoc routing protocols should also address location confidentiality, cooperation fairness and absence of traffic diversion. In MANET , any node may compromise the routing protocol functionality by disrupting the route discovery process .We present a route discovery protocol that mitigates the detrimental effects of such malicious behavior as to provide correct connectivity information . Here scheme guarantees that node initiating a route discovery will be able to identify and discard replies providing false topological information, or, avoid receiving them. For this basic route query broadcast that provides. Secure Routing we propose the Secure Routing Protocol (SRP) that is to be applied on extension of ZRP, DSR and IERP. Index Terms: Ad hoc networks, security attacks, secure routing.