电动汽车充电桩-后台服务管理中心信息安全防护方案设计与实现
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摘要
为提高分布式电动汽车充电桩的信息安全防护能力,保障充电桩与后台服务管理中心之间传输数据的机密性、完整性与真实性,分析了充电桩信息安全威胁与信息安全需求,采用高级加密标准(advanced encryption standard,AES)和HMAC-SHA256算法,设计了基于认证加密的充电桩-后台服务管理中心信息安全防护方案;基于STM32F407ZGT6芯片和嵌入式操作系统μC/OS-III,搭建了充电桩通信模拟平台;制定了充电桩-后台服务管理中心通信应用层协议,设计了充电桩-后台服务管理中心信息安全防护方案;测试了不同类型数据在明文传输、加密传输、认证传输、认证加密传输4种安全情形下的报文传输时间,量化了充电桩-后台服务管理中心信息安全防护方案的实施对充电桩通信实时性的影响。测试结果表明,所设计信息安全防护方案可满足充电桩与后台服务管理中心之间通信的机密性、完整性、真实性和实时性要求。
In order to improve the capability of information security protection of the charging pile and guarantee the confidentiality, integrity and authenticity of data transmitted between charging pile and background service management center, this paper analyses the information security threat and security requirements of the charging pile and designs an information security protection scheme of charging pile-background service management center on the basis of authentication and encryption by means of using AES algorithm and HMAC-SHA256 algorithm. On the basis of STM32 F407 ZGT6 and embedded operating system μC/OS-III, a simulation platform of charging pile communication is built. Then, the application layer communication protocol has been formulated to implement the information security protection scheme of charging pile-background service management center. Finally, the transmission time of four security cases(plaintext transmission, encrypted transmission, authentication transmission and authentication encryption transmission) is measured and the effect of information security protection scheme on real-time transmission is quantified. The results show that the information security protection scheme designed can meet the confidentiality, integrity, authenticity and real-time requirements of communication between the charging pile and background service management center.
In order to improve the capability of information security protection of the charging pile and guarantee the confidentiality, integrity and authenticity of data transmitted between charging pile and background service management center, this paper analyses the information security threat and security requirements of the charging pile and designs an information security protection scheme of charging pile-background service management center on the basis of authentication and encryption by means of using AES algorithm and HMAC-SHA256 algorithm. On the basis of STM32 F407 ZGT6 and embedded operating system μC/OS-III, a simulation platform of charging pile communication is built. Then, the application layer communication protocol has been formulated to implement the information security protection scheme of charging pile-background service management center. Finally, the transmission time of four security cases(plaintext transmission, encrypted transmission, authentication transmission and authentication encryption transmission) is measured and the effect of information security protection scheme on real-time transmission is quantified. The results show that the information security protection scheme designed can meet the confidentiality, integrity, authenticity and real-time requirements of communication between the charging pile and background service management center.
引文
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[12] 陈宋宋,王丽丽,项彬,等.ESAM在电动汽车充电桩中的应用[J].电力系统通信,2012,33(4):42-46.CHEN Songsong,WANG Lili,XIANG Bin,et al.The application of ESAM in electric vehicle charging pile[J].Telecommunications for Electric Power System,2012,33(4):42-46.
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[14] RAVILLA D,PUTTA C S R.Implementation of HMAC-SHA256 algorithm for hybrid routing protocols in MANETs[C]//International Conference on Electronic Design,Computer Networks & Automated Verification.IEEE,2015:154-159.
[15] 王智东,王钢,童晋方,等.智能变电站的密钥管理方法[J].电力系统自动化,2016,40(13):121-127.WANG Zhidong,WANG Gang,TONG Jinfang,et al.Key management method of intelligent substation[J].Automation of Electric Power Systems,2016,40(13):121-127.
[2] 高雅.风起充电桩[J].国家电网,2017(2):48-53.
[3] WANG Y,HONG Z,LI J,et al.Challenges and future trends for embedded security in electric vehicular communications[C]// 2015 IEEE 11th International Conference on ASIC (ASICON).Chengdu,China:IEEE,2016:1-4.
[4] FRIES S,FALK R.Electric vehicle charging infrastructure-security considerations and approaches[C]//International Conference on Evolving Internet-Internet.2012:58-64.
[5] BROEK F V D,POLL E,VIEIRA B.Securing the Information Infrastructure for EV Charging[M].Wireless and Satellite Systems.Springer International Publishing,2015:61-74.
[6] LEE S,PARK Y,LIM H,et al.Study on analysis of security vulnerabilities and countermeasures in ISO/IEC 15118 based electric vehicle charging technology[C]//International Conference on Its Convergence and Security.IEEE,2014:1-4.
[7] LI H,RU Y Q,LI Y K,et al.Information security protection design of electric vehicles charging station[J].Applied Mechanics & Materials,2015,741:681-686.
[8] H?FER C,PETIT J,SCHMIDT R,et al.POPCORN:Privacy-preserving charging for emobility[C]//ACM Workshop on Security,Privacy & Dependability for Cyber Vehicles.ACM,2013:37-48.
[9] 赵翔,刘志红,陈衢明,等.电动汽车充电设施数据通信安全策略[J].电力系统自动化,2011,35(9):92-94.ZHAO Xiang,LIU Zhihong,CHEN Quming,et al.Data communication security strategy for electric vehicle charging facilities[J].Automation of Electric Power Systems,2011,35(9):92-94.
[10] 莫飘.电动汽车充电站信息安全问题的研究[D].北京:华北电力大学,2012:44-45.MO Piao.Research on information security of charging station for electric vehicle[D].Beijing:North China Electric Power University,2012:44-45.
[11] 赵兵,岑炜,翟峰,等.具有安全防护功能的电动汽车充电桩控制装置[J].电器与能效管理技术,2013(16):53-57.ZHAO Bing,CEN Wei,ZHAI Feng,et al.Electric vehicle charging pile control device with safety protection function[J].Electrical & Energy Management Technology,2013(16):53-57.
[12] 陈宋宋,王丽丽,项彬,等.ESAM在电动汽车充电桩中的应用[J].电力系统通信,2012,33(4):42-46.CHEN Songsong,WANG Lili,XIANG Bin,et al.The application of ESAM in electric vehicle charging pile[J].Telecommunications for Electric Power System,2012,33(4):42-46.
[13] HUANG X,XU C,WANG P,et al.LNSC:A security model for electric vehicle and charging pile management based on blockchain ecosystem[J].IEEE Access,2018,PP(99):1-1.
[14] RAVILLA D,PUTTA C S R.Implementation of HMAC-SHA256 algorithm for hybrid routing protocols in MANETs[C]//International Conference on Electronic Design,Computer Networks & Automated Verification.IEEE,2015:154-159.
[15] 王智东,王钢,童晋方,等.智能变电站的密钥管理方法[J].电力系统自动化,2016,40(13):121-127.WANG Zhidong,WANG Gang,TONG Jinfang,et al.Key management method of intelligent substation[J].Automation of Electric Power Systems,2016,40(13):121-127.
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