Efficient In Revoking Certificates Of Malicious Nodes In Manet
Mobile ad hoc network (MANET) is self configuring infrastructure less network which uses wireless technology.
MANET is a type of wireless ad hoc network. Security is a major concern to provide protection between mobile nodes in
hostile environment. The dynamic and wireless nature of mobile ad hoc network makes them more susceptible to many
kinds of alicious attacks and hence it is difficult to ensure secure communications. Certificate revocation is a method used to
provide security to MANET, which isolate the attackers from further participating in network activities. These certificates
are issued and revoked by the Certificate Authority which is a trusted third party. Certificate revocation invalidates the
attacker’s certificate which is essential in keeping the network secured. Sometimes malicious node will try to remove
legitimate nodes from the network by falsely ccusing them as attackers. Therefore, the issue of false accusation must be
taken into account in designing certificate revocation mechanisms. Clustering approach outperforms other techniques in
terms of being able to quickly revoke certificates of accused nodes and also to explicitly distinguish false accusations. Here
Warned nodes will also take part in certificate revocation to make the scheme more reliable. Cluster based routing protocol is
used for revocation of certificates that provides secure and reliable communications in mobile ad hoc network.