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基于二维结构熵的CBTC系统信息安全风险评估方法

董慧宇 唐涛 王洪伟

董慧宇, 唐涛, 王洪伟. 基于二维结构熵的CBTC系统信息安全风险评估方法. 自动化学报, 2019, 45(1): 153-162. doi: 10.16383/j.aas.c180374
引用本文: 董慧宇, 唐涛, 王洪伟. 基于二维结构熵的CBTC系统信息安全风险评估方法. 自动化学报, 2019, 45(1): 153-162. doi: 10.16383/j.aas.c180374
DONG Hui-Yu, TANG Tao, WANG Hong-Wei. A 2D Structure Entropy-based Approach to Security Assessment of Communication-based Train Control System. ACTA AUTOMATICA SINICA, 2019, 45(1): 153-162. doi: 10.16383/j.aas.c180374
Citation: DONG Hui-Yu, TANG Tao, WANG Hong-Wei. A 2D Structure Entropy-based Approach to Security Assessment of Communication-based Train Control System. ACTA AUTOMATICA SINICA, 2019, 45(1): 153-162. doi: 10.16383/j.aas.c180374

基于二维结构熵的CBTC系统信息安全风险评估方法

doi: 10.16383/j.aas.c180374
基金项目: 

北京市自然科学基金 4164094

国家重点实验室项目 RCS2018K008

国家自然科学基金 201706280220

国家自然科学基金 61603031

国家自然科学基金 61790573

国家重点实验室项目 RCS2017ZZ003

北京市自然科学基金 L161006

详细信息
    作者简介:

    董慧宇 北京交通大学电子信息工程学院硕士研究生.2016年获得北京交通大学电子信息工程学院学士学位.主要研究方向为城市轨道交通列控系统信息安全.E-mail:16120213@bjtu.edu.cn

    唐涛 轨道交通控制与安全国家重点实验室教授.1991获得中国科学院博士学位.主要研究方向为基于通信的列车运行控制, 高速列车控制系统和智能交通系统.E-mail:ttang@bjtu.edu.cn

    通讯作者:

    王洪伟 国家轨道交通安全评估研究中心副教授.2014年获得北京交通大学博士学位.主要研究方向为基于通信的列车运行控制系统的车, 地通信技术和地铁系统中的协作调度方法.本文通信作者.E-mail:hwwang@bjtu.edu.cn

A 2D Structure Entropy-based Approach to Security Assessment of Communication-based Train Control System

Funds: 

Supported by Beijing Natural Science Foundation 4164094

State Key Laboratory RCS2018K008

National Natural Science Foundation of China 201706280220

National Natural Science Foundation of China 61603031

National Natural Science Foundation of China 61790573

State Key Laboratory RCS2017ZZ003

Supported by Beijing Natural Science Foundation L161006

More Information
    Author Bio:

    Master student at the School of Electronics and Information Engineering, Beijing Jiaotong University. She received her bachelor degree from Beijing Jiaotong University in 2016. Her research interest covers information security in communication-based train control systems

    Professor at the State Key Laboratory of Rail Traffic Control and Safety. He received his Ph. D. degree from Chinese Academy of Sciences in 1991. His research interest covers communication-based train control, high-speed train control systems, and intelligent transportation systems

    Corresponding author: WANG Hong-Wei Associate professor at the National Research Center of Railway Safety Assessment. He received his Ph. D. degree from Beijing Jiaotong University in 2014. His research interest covers train-ground communication technology in communication base train-ground communication systems and cooperative scheduling approaches in subway systems. Corresponding author of this paper
  • 摘要: 随着计算机技术、通信技术和控制技术在城市轨道交通列车运行控制系统中的应用,城市轨道交通的自动化和信息化程度不断提升.然而,基于通信的列车运行控制(Communication-based train control,CBTC)技术采用的通用计算机设备和通信技术带来的信息安全漏洞,给CBTC系统带来了日益严峻的信息安全风险,因此,对CBTC系统的信息安全风险进行量化、动态评估具有重要意义.本文根据设备及通信链路的差异性构建了CBTC网络拓扑模型,结合信息安全风险下线路列车运行性能变化导致的运能损失,采用综合表征信息域和物理域特征的二维结构信息熵对CBTC系统信息安全风险进行建模分析.最后,基于城市轨道交通列控系统半实物仿真平台对评估方法进行验证,表明所提方法对CBTC系统信息安全量化评估的有效性和准确性.
    1)  本文责任编委 吕宜生
  • 图  1  CBTC系统结构

    Fig.  1  CBTC systems

    图  2  CBTC系统故障时的列车性能变化

    Fig.  2  Train performance under failures of CBTC

    图  3  CBTC 系统测试床网络拓扑图

    Fig.  3  The network topology of the CBTC test-bed

    图  4  网络攻击过程

    Fig.  4  The process of the network attack

    图  5  节点脆弱性指数

    Fig.  5  Vulnerability indexes of nodes

    图  6  网络攻击下计算机网络二维结构熵的变化

    Fig.  6  Two-dimensional structure entropy of computer network under the cyber attack

    图  7  ZC故障后的列车运行速度图

    Fig.  7  The speed of a train within the range of a failed ZC sub-system

    图  8  网络攻击下列车性能

    Fig.  8  Operation performance of trains of CBTC test-bed under the cyber attack

    图  9  网络攻击下CBTC系统测试床的信息安全状态

    Fig.  9  Security of CBTC test-bed under the cyber attack

    表  1  通信链路的安全性

    Table  1  Security of communication links between equipments

    通信方式 通信协议 数据安全性 被截获的难易程度 综合评价 边权重
    RSSP-I 2 3 2.3 3
    有线 私有协议 3 3 3 1
    明文 1 4 1.9 5
    无线 RSSP-I 2 2 2 4
    私有协议 3 1 2.4 2
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出版历程
  • 收稿日期:  2018-05-31
  • 录用日期:  2018-09-03
  • 刊出日期:  2019-01-20

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