TAILIEUCHUNG - Time dependent finite state machine based method for intrusion detection in mobile ad hoc networks

The conventional methods such as firewalls, encryption is no longer adequate. In this paper, we identify three types of threats against AODV which influence the routing message in MANET. Our solution is based on the use of Time based Finite State Machine to identify correct and malicious behavior in AODV. The TFSM have been modelled using JFLAP and simulated in MANET environment using C#. | International Journal of Computer Networks and Communications Security C VOL. 2, NO. 8, AUGUST 2014, 242–249 Available online at: ISSN 2308-9830 N C S Time Dependent Finite State Machine based Method for Intrusion Detection in Mobile Ad Hoc Networks MAHDA NOURA1, SINA MANAVI2, NASRIN KHANEZAEI3 1, 2, 3 Faculty of Computer Science and IT, . University, Kuala Lumpur, Malaysia E-mail: 1mahdanoura@, , ABSTRACT The Ad hoc On-Demand Distance Vector (AODV) routing protocol designed with the purpose of mobile ad hoc networks has numerous advantages such as low network utilization, fast adjustments to link conditions and low memory and processing overheads. However, if security is not considered in this protocol it is at risk to many attacks. The conventional methods such as firewalls, encryption is no longer adequate. In this paper, we identify three types of threats against AODV which influence the routing message in MANET. Our solution is based on the use of Time based Finite State Machine to identify correct and malicious behavior in AODV. The TFSM have been modelled using JFLAP and simulated in MANET environment using C#. Keywords: AODV, MANET, Intrusion Detection, Time Finite State Machine, Automata, JFLAP, C#. 1 INTRODUCTION Mobile Ad Hoc Networks (MANETs) is known as a collection of wireless computers with communication between them which are able to move freely without any dependency on the infrastructures. Base stations or access points are great examples of such independent mobile systems [1]. In the MANET, nodes forward the packets among each other, to contribute the routing functionality and provide indirect wireless transmission; acting as both hosts and routers. Since MANET is a decentralized administration and does not need a fixed network infrastructure, it can be set up quickly and inexpensively on demand, it can be applied in different scenarios such as military .

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• Malicious behavior in AODV
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