A robust and privacy‐preserving aggregation scheme for secure smart grid communications in digital communities

Abstract

By offering indisputable advantages over traditional grid including remote readings and load balancing, smart grid is regarded as the modernization of the electricity delivery system. In this paper, we propose a privacy-preserving and secure multi-dimensional aggregation scheme for smart grid communications in digital communities. By integrating privacy homomorphism encryption with aggregation signature scheme, data authentication and integrity protection are performed and proved without disclosing any fine-grained user consumption data. The construction of member list allows the fault tolerance of our scheme against accidental errors. In addition, the batch verification technique is adopted to reduce the computation cost of the operation center, and each user's computation cost is independent of the number of collected data types. Security analysis and performance evaluation demonstrate that the proposed scheme can resist various security threats and preserve identity privacy and has significantly less communication overhead and computation cost than other existing approaches.

PAgIoT – Privacy-preserving Aggregation protocol for Internet of Things

“…Anonymity is generally achieved by the use of cryptographic schemes, e.g. symmetric encryption [2,6,7,30] or more sophisticated schemes like homomorphic encryption [8,37,38,39,31,40,41,42,43,46], homomorphic aggregation of signatures [36] and homomorphic encryption with re-randomization applying a proxy [5]. By contrast, Groat et al [44] propose the use of randomized arrays instead of a cryptographic system.…”

“…Privacy preservation against observers is considered in [2,3,5,7,8,29,26,44,31,41,42,46,36,25,48]. The use of cryptography is demanding to manage this issue [2,3,5,7,8,28,29,26,38,46,36,25,48], as well as randomized arrays or negative surveys [44].…”

“…Multiple proposals have been developed, from the aggregation of values [5,6,7,28,29,30,31,32,33,34,35,36], to additions [2,3,26,37,38,39,40,41,42,43], calculus of minimums or maximums [10,44,45] or even more complex tasks such as averages [9,10,30,46], variances [9,46], range queries [6] or logic operations [8].…”

Efficient Signature Scheme for Delivering Authentic Control Commands in the Smart Grid

“…Thereafter, a one-time signature scheme was proposed by Zaverucha et al [14] that supports aggregation and batch verification. Other signature schemes have also been proposed for the smart grid network [15], [16], [17]. Li et al [15] presented an approach to authenticate data aggregation in smart grid via deploying signature aggregation.…”

“…Vaidya et al [16] proposed elliptic curve cryptography-based digital signature scheme for remote access to home area networks. Fu et al [17] proposed a multi-dimensional aggregation signature scheme for smart grid communications. However, none of these schemes fulfills our communication and system requirements for secure command delivery.…”