A High Certificate Authority Scheme for Authentication in Mobile Ad hoc Networks
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.
Keywords: Mobile ad hoc networks (MANETs), denial of
service (DoS), Routing cum forwarding (RCF), Certificate
revocation, Certification revival
Download Full-Text
