Abstract
MANETs (Mobile Ad hoc Networks) are wireless networks that are deployed for a particular purpose or short-term use. Because of the lack of central coordination, MANETs share an inherent trust relationship among the nodes forming the network. Each node implicitly trusts its neighbour to forward packets in the network till the packets reach their destination. Further, each node in a MANET can monitor its neighbours by keeping track of the packets passing through the neighbours. This characteristic ability of a node in MANET makes it possible to develop a trust model that can correlate with the innate trust shared among the nodes. This paper looks at developing such a trust model which is applied to all the nodes in the network. The trust model works like an Intrusion Detection System (IDS), which seeks to detect blackhole attacks in the system, and then identify and mitigate the malicious attacker.
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