Routing and Security Issues for Trust Based Framework in Mobile Ad Hoc Networks

Abstract

Mobile means moving and Ad Hoc means temporary without any fixed infrastructure, so mobile ad hoc networks (MANETs) are a kind of temporary networks in which nodes are moving without any fixed or centralized administration. It is the new emerging technology which enables user to communicate without any physical regardless of their geographical location, that's why it is also referred to as an infrastructure less network. Unfortunately, ad hoc networks are particularly vulnerable due mainly to their lack of infrastructure. Other reasons could be: high mobility, wireless links, limited bandwidths, lack of boundaries, short lifetime batteries and weak capacity of equipments. The execution and survival of ad hoc networks depends on cooperative and trusting nature of the distributed nodes. There is a common assumption in the routing protocols that all nodes are trustworthy and cooperative. However, this naive dependency on intermediate nodes makes the ad hoc networks vulnerable to passive and active attacks by malicious nodes. Trust based routing and Security in MANETs are the most important concern for the basic functionality of Network. The availability of network services, confidentiality and integrity of data can be achieved by assuring that routing & security issues have been met. In this paper an attempt has been made to review various routing and security issues for trust based framework in MANETs.