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A Secure Charging System for Electric Vehicles Based on Blockchain

1
School of Electronics Engineering, Kyungpook National University, Daegu 41566, Korea
2
Information Security Research Division, Electronics and Telecommunications Research Institute, Daejeon 34129, Korea
*
Authors to whom correspondence should be addressed.
Sensors 2019, 19(13), 3028; https://doi.org/10.3390/s19133028
Received: 4 June 2019 / Revised: 3 July 2019 / Accepted: 6 July 2019 / Published: 9 July 2019
(This article belongs to the Section Internet of Things)
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Abstract

Smart grids incorporating internet-of-things are emerging solutions to provide a reliable, sustainable and efficient electricity supply, and electric vehicle drivers can access efficient charging services in the smart grid. However, traditional electric vehicle charging systems are vulnerable to distributed denial of service and privileged insider attacks when the central charging server is attacked. The blockchain-based charging systems have been proposed to resolve these problems. In 2018, Huang et al. proposed the electric vehicle charging system using lightning network and smart contract. However, their system has an inefficient charging mechanism and does not guarantee security of key. We propose a secure charging system for electric vehicles based on blockchain to resolve these security flaws. Our charging system ensures the security of key, secure mutual authentication, anonymity, and perfect forward secrecy, and also provides efficient charging. We demonstrate that our proposed system provides secure mutual authentication using Burrows–Abadi–Needham logic and prevents replay and man-in-the-middle attacks using automated validation of internet security protocols and applications simulation tool. Furthermore, we compare computation and communication costs with previous schemes. Therefore, the proposed charging system efficiently applies to practical charging systems for electric vehicles. View Full-Text
Keywords: smart grid; internet-of-things; blockchain; electric vehicle; secure charging system smart grid; internet-of-things; blockchain; electric vehicle; secure charging system
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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 (CC BY 4.0).
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Kim, M.; Park, K.; Yu, S.; Lee, J.; Park, Y.; Lee, S.-W.; Chung, B. A Secure Charging System for Electric Vehicles Based on Blockchain. Sensors 2019, 19, 3028.

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