Title: Secure and privacy-oriented obfuscation scheme for smart metering in smart grid via dynamic aggregation and lightweight perturbation
Authors: Oladayo Olufemi Olakanmi
Addresses: Electrical and Electronic Engineering Department, University of Ibadan, Nigeria
Abstract: Smart metering in smart grid system has raised several condemnations based on its security and privacy invasiveness. The major techniques adopted to mitigate the security and privacy invasions of smart metering are aggregation and perturbation. However, aggregating smart meters' measurements is not enough to secure or preserve the privacy of consumers in either spatial or temporal metering. More so, the existence of perfect perturbation technique which can efficiently reconstruct data during the reconstruction phase has been a major challenge in existing perturbation schemes. In this paper, a scheme that combines aggregation and perturbation to secure smart meters' measurements and preserve consumer privacy is proposed. The scheme dynamically changes the topology and direction of aggregation in neighbourhood area network during spatial and temporal aggregation. It efficiently combines perturbation and aggregation techniques. A novel perturbs generation method was proposed for the perturbation scheme with dynamic constraint-based topology generation method. The simulation results showed that the scheme not only prevented gleaning of the metering but made it difficult for the adversary to perform pre-target attack on any of the smart meters in the network.
Keywords: smart metering; topology; spatial aggregation; temporal aggregation; privacy invasion; Smart grid.
International Journal of Information Privacy, Security and Integrity, 2017 Vol.3 No.1, pp.38 - 57
Received: 28 Nov 2016
Accepted: 15 Mar 2017
Published online: 15 Sep 2017 *