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Wireless Communications and Mobile Computing
Volume 2017, Article ID 3194845, 11 pages
https://doi.org/10.1155/2017/3194845
Research Article

Lightweight Data Aggregation Scheme against Internal Attackers in Smart Grid Using Elliptic Curve Cryptography

1State Key Lab of Software Engineering, Computer School, Wuhan University, Wuhan, China
2Co-Innovation Center for Information Supply & Assurance Technology, Anhui University, Hefei, China
3College of Communication and Information, University of Kentucky, Lexington, KY, USA
4Jiangsu Key Laboratory of Big Data Security & Intelligent Processing, Nanjing University of Posts and Telecommunications, Nanjing, China

Correspondence should be addressed to Qin Liu; nc.ude.uhw@uilniq

Received 17 February 2017; Accepted 30 March 2017; Published 9 May 2017

Academic Editor: Jaime Lloret

Copyright © 2017 Debiao He et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Recent advances of Internet and microelectronics technologies have led to the concept of smart grid which has been a widespread concern for industry, governments, and academia. The openness of communications in the smart grid environment makes the system vulnerable to different types of attacks. The implementation of secure communication and the protection of consumers’ privacy have become challenging issues. The data aggregation scheme is an important technique for preserving consumers’ privacy because it can stop the leakage of a specific consumer’s data. To satisfy the security requirements of practical applications, a lot of data aggregation schemes were presented over the last several years. However, most of them suffer from security weaknesses or have poor performances. To reduce computation cost and achieve better security, we construct a lightweight data aggregation scheme against internal attackers in the smart grid environment using Elliptic Curve Cryptography (ECC). Security analysis of our proposed approach shows that it is provably secure and can provide confidentiality, authentication, and integrity. Performance analysis of the proposed scheme demonstrates that both computation and communication costs of the proposed scheme are much lower than the three previous schemes. As a result of these aforementioned benefits, the proposed lightweight data aggregation scheme is more practical for deployment in the smart grid environment.