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Reputation-Based Security Protocol for MANETs

Author(s): Mohammad Mujeeb, | Mr. Sudhakar K N, | Dr. Jitendranath Mungara,

Journal: International Journal of Innovative Technology and Exploring Engineering
ISSN 2278-3075

Volume: 1;
Issue: 2;
Start page: 97;
Date: 2012;
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Keywords: MANET | RSAODV | Black hole | Routing | Digital Signature | Hashing

Mobile Ad-hoc Network is huge area for research with practical applications. It is a infrastructureless and self-organized network, vulnerable because of its characteristics such as open medium, distributed cooperation and it is difficult to predict the topology. In general, Routing security in MANETs appears to be a challenging task. In this article we study the routing security issues of MANETs, and analyze in detail — the “Blackhole” attack. We come with distributed reputation mechanism that improves security in MANETS. Some optimization to the current reputation scheme used in MANETs are one is Selective Deviation tests and second is Adaptive expiration timer that aims to deal with congestion and quick reputation convergence. Cryptographic mechanisms such as Digital signature and hashing technique are used for the authentication of the packets in network. We design and build our proposed protocol over existing AODV and test in Network Simulator-2 in the presence of variable active Black hole attack. By using proposed Secure AODV (RSAODV) protocol we achieve increased throughput by decreasing packet delivery delay and packet drop.
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