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A High Certificate Authority Scheme for Authentication in Mobile Ad hoc Networks

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Author(s): A. Rajaram | S. Palaniswami

Journal: International Journal of Computer Science Issues
ISSN 1694-0784

Volume: 7;
Issue: 4;
Start page: 37;
Date: 2010;
Original page

Keywords: Mobile ad hoc networks (MANETs) | denial of service (DoS) | Routing cum forwarding (RCF) | Certificate revocation | Certification revival | IJCSI

ABSTRACT
In mobile ad hoc networks (MANETs), it is easy to launch wormhole, man-in-the-middle and denial of service (DoS) attacks, or to impersonate another node. Trust based cross layer approach established a network consisting confidentiality and authentication of packets in both routing and link layers., in this paper, we propose to develop an enhanced distributed certificate authority scheme to provide data integrity, thus making the network more secure from both inside and outside attacks. The proposed scheme makes use of Shamir's secret sharing scheme along with a redundancy technique to support certificate renewal and revocation. The malicious nodes are detected by the trusting mechanism by monitoring the behavior hop by hop. By simulation results, we show that the proposed scheme achieves more packet delivery ratio while attaining less delay and overhead, compared with the trust based cross layer approach.

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