Communication-efficient Certificate Revocation Management for Advanced Metering Infrastructure and IoT
This addresses communication and storage overhead in smart grid and IoT security, though it is incremental as it builds on existing cryptographic techniques.
The paper tackles the challenge of certificate revocation and management in Advanced Metering Infrastructure by proposing a novel approach using cryptographic accumulators, which significantly reduces space requirements and enables efficient distribution, as demonstrated through implementation on ns-3 simulator and a testbed with superior performance compared to traditional methods.
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.