Communication-efficient Certificate Revocation Management for Advanced Metering Infrastructure and IoT

TL;DR

This paper introduces a communication-efficient certificate revocation management method for smart grid infrastructure using cryptographic accumulators, significantly reducing overhead and improving distribution efficiency.

Contribution

It proposes a novel revocation management approach utilizing cryptographic accumulators to reduce storage and distribution overhead in smart grid networks.

Findings

Reduces revocation information storage requirements

Improves distribution efficiency of revocation data

Demonstrates superior performance over traditional methods

Abstract

Advanced Metering Infrastructure forms a communication network for the collection of power data from smart meters in Smart Grid. As the communication between smart meters could be secured utilizing public-key cryptography, however, public-key cryptography still has certain challenges in terms of certificate revocation and management particularly related distribution and storage overhead of revoked certificates. To address this challenge, in this paper, we propose a novel revocation management approach by utilizing cryptographic accumulators which reduces the space requirements for revocation information significantly and thus enables efficient distribution of such information to all smart meters. We implemented the proposed approach on both ns-3 network simulator and a testbed. We demonstrated its superior performance with respect to traditional methods for revocation management.