Self-Securing Mobile Ad Hoc Network Using Distributed Trust Model

Abstract

Mobile Adhoc Networks (MANETs) are easily deployable and infrastructure less networks. Being substantial and adaptable they are mostly used in uneven terrains or war situations. But their use comes in handy in day to day life as well. Being mobile and using distributed services MANETs act as a complimentary service based network for coping with the needs of every type of industry or home networks. As the communication systems have evolved in last few decades, have made the security of the networks a key issue in present scenario. Here in this paper we are going to present a self-securing network model which keeps a track of all the nodes communicating in its neighborhood of trusted nodes, and when an outsider node arrives in the active network it shall be given a ticket to communicate with the nodes after being checked for impersonation or repudiation attacks. This ticket will expire within given time after a silent gap of not communicating with the active nodes. The benefits of such model is that in case if the node is being compromised it would automatically will be tossed out of the network hence making them self-secure. For the initialization of the network the few trusted nodes will be allowed to form a neighborhood of trusted nodes with their initial entries in a Stationary Secure Database (SSD). Now when the group grow in size these trusted nodes will be communicating with each other and will allow or disallow the trusted or compromised nodes respectively on the basis of distributed trust model to establish a secured, stable, trustworthy group of mobile nodes.

Keywords: Stationary Secure Database, Trust computation, Trust Propagation

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