安全通信规范Subset-098的安全性分析

【摘要】 以EN50129和EN50159为依据,对欧洲列车运行控制系统(ETCS)的安全通信规范Subset-098进行分析。分析过程包括定性分析通信安全威胁的防御技术、定量计算安全码的长度,以及安全码检错的仿真实验。结果表明在非可信通信通道上,Subset-098安全通信规范可以为安全完整性等级达SIL4级的列车运行控制系统提供安全的信息传输服务,满足列车运行控制系统对通信的安全性需求。更多还原

【Abstract】 The safety communication protocol Subset-098 of European Train Control System(ETCS)is analyzed according to the standards of EN50129 and EN50159. The analysis process consists of the qualitative analysis of defense technique against communication safety threats, the quantitative computation of length of safety code, and the simulation test of error detection of safety code. The results show that safety communication protocol Subset-098 can provide safe data transmission service for train control system up to SIL4 safety integrity level over non-trusted communication channel, satisfying the safety communication requirement of train control system.更多还原