列控系统密码应用研究

Crypto Application in Train Control System

列控系统(列车运行控制系统)是保障行车安全、提高运输效率的核心装备,也是非常典型的信号系统。现有研究工作较少关注于列控系统的密码应用技术,鉴于CBTC和CTCS系统国产化进程的不断推进,利用密码技术进行安全防护的前提条件已经具备。借助参与铁路领域研究课题的机会,本文对列控系统的密码应用需求进行梳理,根据列控系统自动化和智能化发展趋势,推导出列控系统中密码应用技术路线,并给出较为典型的密码应用方案。

TCS（Train control system）,as the core device for ensuring train safety and raising transport efficiency in railway field,is also a very typical signal system. Recent studies rarely focus on crypto application in TCS. With the rapid development in localization process of CBTC and CTCS,the prerequisite to crypto application for security protection becomes perfect. By drawing support from participating the research project in railway field,the application requirements of cryptography in TCS are combed up. Based on automation and intelligence development of train control system,the technical roadmap of crypto application in TCS is derived. Finally,a fairly typical crypto solution to TCS is presented.