Trust based solutions using counter strategies for Routing attacks in MANET
Ramya S Pure, G.E. Raghavendra Patil, Mohammad Manzoor Hussain · 2014
A Mobile ad-hoc Network (MANET) is a collection of wireless mobile nodes which are capable of communicating with each other without the help of network infrastructure. MANETs possess unique characteristics of self-organizing and self -configuring. The important applications of ad-hoc networks are military operations, disaster management etc. Routing protocol plays a major role to prevent routing attacks. Security attacks can be launched towards any layer of the protocol stack. Routing in MANET is a challenging task because of its unique characteristics such as dynamic networking topology, limited band width and battery power etc. Now a days, many researches are going on in this area and several efficient routing protocols have been proposed for Mobile ad-hoc Network. They are vulnerable to attacks due to the presence of malicious nodes. Therefore security is an important factor for the establishment of desirable Mobile ad-hoc Networks. The overall performance of MANET depends on the cooperation and trust among the mobile nodes. Our proposed trust model is designed over ad-hoc On-demand distance vector routing protocol (AODV). So that computation overhead can be reduced and also trustworthiness of routing procedure can be guaranteed. The proposed routing algorithm adds a field which stores trust value or node's trust on its neighbors. Based on the trust value, the routing information will be transmitted to highest trust valued node. This method pertaining to mobile ad-hoc networks can provide secured routing and can also improve the network throughput. In this paper, we will also walk through some of the common attacks on the Network layer such as Blackhole attack, Wormhole attack and the Grayhole attack which fall under the category of Denial-of- Service Attack (DoS)