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

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Executive Summary

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, the authors 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.

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