A certificate revocation scheme for wireless ad hoc networks
Claude Crépeau, Carlton R. Davis · 2003
The increasing prominence of wireless ad hoc networks is stimulating greater interest in developing adequate security mechanisms for securing applications involving these innovative networks paradigms. To-date, the proposed security schemes either provide inadequate security or they are too costly computationally, and therefore impractical for most ad hoc network applications.Adapting wired network security schemes---particularly those involved digital certificates---to wireless ad hoc networks environments, poses many difficulties, primarily for two reasons: the limitation of computational resources, and the absence of centralized entities for performing critical key management tasks such as certificate revocation.In this paper, we propose a certificate revocation scheme for wireless ad hoc networks. Our revocation scheme not only provides a measure of protection against malicious accusation attacks, but it also effectively eliminates the window of opportunity whereby revoked certificates can be used to access network services.