Netinfo Security ›› 2018, Vol. 18 ›› Issue (12): 87-92.doi: 10.3969/j.issn.1671-1122.2018.12.012

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Privacy-aware Power Injection in 5G Smart Grid

Liang LI1, Yinghui ZHANG1,2, Kaixin DENG1(), Tiantian ZHANG1   

  1. 1. National Engineering Laboratory for Wireless Security, Xi’an University of Posts and Telecommunications, Xi’an Shannxi 710121, China;
    2. Westone Cryptologic Research Center, Beijing 100070, China
  • Received:2018-08-15 Online:2018-12-20 Published:2020-05-11

Abstract:

To address the security and privacy protection issues of power collection in 5G smart grid, a privacy-aware power injection system is proposed based on V2G (Vehicle-to-Grid) for 5G smart grid. During peak hours, the power utility sends a power collection request through aggregation gateways in V2G. Power storage units such as electric vehicles encrypt and aggregate power bids of different time slots based on Paillier cryptosystem and Diffie-Hellman key agreement. Aggregation gateways further aggregate the power data of all power storage units and send the result to the power utility. The power utility decrypts the aggregated data based on secret keys to get the number of power collected in different time slots. Security analysis indicates that the proposed system not only protects privacy of power storage units, but also realizes confidentiality and integrity of injection data. Efficiency analysis indicates that the proposed system significantly reduces the computation complexity and improves the communication efficiency.

Key words: 5G, smart grid, privacy protection, power injection, authentication

CLC Number: