Shielding against on-off attack pattern in a MANET through a trust computation scheme leveraging the behavioural consistency. (8th July 2021)

• Record Type: Journal Article
• Authors: Samreen, Shirina
• Is Part Of: International journal of communication networks and distributed systems. Volume 27:Number 2(2021)
• Page Start: 178
• Page End: 213
• Publication Date: 2021-07-08
• Subjects: mobile ad hoc networks -- MANETs -- trust management framework -- TMF -- security attacks -- packet droppers -- dishonest recommenders -- on-off attack pattern -- Jousselme distance; Computer networks -- Periodicals; Telecommunication systems -- Periodicals; Electronic data processing -- Distributed processing -- Periodicals; 004.6
• Languages: English
• ISSNs: 1754-3916

Abstract

The evolution of security mechanisms for defending a mobile ad hoc network (MANET) is challenged through intelligent strategies employed by the attackers. The current research involves the design of a robust trust management framework (TMF) which protects the network against an attack pattern termed as on-off attack. Each dimension of the attack vector corresponding to packet droppers and dishonest recommenders employing the on-off attack pattern is countered through an individual dimension of the multi-dimensional trust vector termed as forwarding consistency trust and recommendation consistency trust respectively. The efficiency of proposed scheme in reducing the packet loss is analysed through network simulation using NS-2 under different attack scenarios. It is found that incorporation of behavioural consistency in the trust computation plays a very significant role in maintaining the network performance in the presence of on-off attackers by improving the packet delivery fraction from 71% to 85% and the detection ratio from 70% to 95% respectively.