一种基于PKI模型在信号系统中进行身份认证的方法

Identity Authentication Method in Urban Transit Signal System Based on PKI Model

提出一种应用在城市轨道交通信号系统中,基于传统PKI模型进行改造并使用国产密码算法进行身份验证的方法,使信号系统的通信数据得到可鉴别性保护和不可否认性保护。实际应用结果表明,该方法能够较好的适配信号系统工作模式,在不影响信号系统既有功能和安全等级的前提下完成身份认证。

In this paper, a method based on traditional PKI model is proposed for urban rail transit signal system using the Chinese encryption algorithm, therefore the communication data of signal system can be protected with the function of identifiability and non-repudiation. The application results show that this method is more adaptive to the working mode of signal system and identity authentication is completely processed without affecting the function and security level of signal system.