Replay Attack and Defense of Electric Vehicle Charging on GB/T 27930-2015 Communication Protocol

• 作者: Haiming Li Min Wu Yafei Li Yong Wang
• 来源期刊: 电脑和通信(英文)
• 学科: 工学
• 关键词: EV CHARGING GB/T 27930-2015 REPLAY ATTACK RSA Digital SIGNATURE Adding Random Numbers
• 年，卷（期）: 2019,（12）
• 页码范围: 20-30
• 页数: 11页
• 分类号: TP3

摘要

The GB/T 27930-2015 protocol is the communication protocol between the non-vehicle-mounted charger and the battery management system (BMS) stipulated by the state. However, as the protocol adopts the way of broadcast communication and plaintext to transmit data, the data frame does not contain the source address and the destination address, making the Electric Vehicle (EV) vulnerable to replay attack in the charging process. In order to verify the security problems of the protocol, this paper uses 27,655 message data in the complete charging process provided by Shanghai Thaisen electric company, and analyzes these actual data frames one by one with the program written by C++. In order to enhance the security of the protocol, Rivest-Shamir-Adleman (RSA) digital signature and adding random numbers are proposed to resist replay attack. Under the experimental environment of Eclipse, the normal charging of electric vehicles, RSA digital signature and random number defense are simulated. Experimental results show that RSA digital signature cannot resist replay attack, and adding random numbers can effectively enhance the ability of EV to resist replay attack during charging.