A Study on Certificate Revocation in Mobile Ad Hoc Networks

In mobile ad hoc networks, one challenge in certificate revocation design is to revoke malicious nodes' certificates accurately. In this paper, we build up on our previously proposed scheme [1], which enables the recovery of falsely accused nodes' certificates. This scheme is a cluster-based certificate revocation scheme that divides the network into clusters of one cluster head and cluster members. Through extensive simulations, we prove that this scheme enables low communication overhead and the revocation of malicious nodes' certificates promptly, and can also decrease the probability of false revocation. We also propose an improvement that increases the reliability of our proposed scheme.

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