基于AES算法的配电网多业务分级的安全策略研究  

Research on Security Strategy of Multi Service Classification in Distribution Network Based on AES Algorithm

作　　者：丁闯 陆俊[1] 李映雪 DING Chuang;LU Jun;LI Ying-xue(School of Electric and Electronic Engineering, North China Electric Power University, Beijing 102206, China;Economic and Technical Research Institute, State Grid Jiangxi Electric Power Company, Nanchang 330043, China)

机构地区：[1]华北电力大学电气与电子工程学院,北京102206 [2]国网江西省电力公司经济技术研究院,江西南昌330043

出　　处：《电力信息与通信技术》2018年第6期19-25,共7页Electric Power Information and Communication Technology

基　　金：国家重大科技攻关项目"安全可控;能源互联;开放互通的智能充电网研究与应用示范"(2016YFB0101900);国家电网公司总部科技项目资助"面向多业务的配电通信网安全策略研究"

摘　　要：目前配电网仍存在如配电终端被控制、通信协议被监听、控制指令被篡改等潜在安全问题,因此研究配电网的业务信息安全是必要的。针对配电自动化系统中配电远程终端的数据传输信息安全问题,提出了一种基于AES算法的数据传输的安全加密策略。文章分析了配电网多种典型业务的安全通信需求,将典型业务划分为3个安全等级,结合信息传输安全模型,在不同迭代轮次的AES算法基础上设计了一种安全加密策略,最后通过仿真分析,研究AES算法迭代轮次分别与明文长度、加密时间、解密时间的关系,通过适当减少AES算法内部的迭代轮次,提高了算法效率,验证了策略的有效性。At present, there are still potential security problems in distribution network such as distribution terminals are controlled, communication protocol is monitored, control instruction is tampered and so on, so it is necessary to study the business information security of the distribution network. Aiming at the data transmission information security problem of distribution terminal in distribution automation system, a security encryption strategy based on AES algorithm for data transmission is proposed. In this paper, the security communication requirements of several typical services in distribution network are analyzed. The typical services are divided into three security levels. Combined with the information transmission security model, a security encryption strategy is designed on the basis of the AES algorithm of different iterations. Finally, through the simulation analysis, the relationship between the iterations of the AES algorithm and the length of the plaintext, the encryption time and the decryption time is studied. By reducing the iterations in the AES algorithm, the efficiency of the algorithm is improved and the effectiveness of the strategy is verified.

关 键 词：多业务 安全等级 AES算法 迭代轮次 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]