Abstract: The railway integrated video monitoring system has played an important role in such aspects as improving the efficiency of railway operation and management, and enhancing the capabilities of safety precaution. With construction of video systems and the expansion of their coverage, the information security risks faced by the integrated video monitoring system itself are gradually increasing. This paper explores the core secret key technologies, which are supported by the digital certificate authentication technology and encryption technology. It also refers to the standard framework of GB 35114-2017, to propose an application scheme for railway integrated video monitoring system based on secret key technology. This paper combines the secret key technologies, to achieve the data encryption and identity authentication of the integrated video monitoring system, which ensures video data security, and effectively improves system safety and reliability, and provides solid guarantee for the safe development of informatization and digitization in the railway industry.

Key words: railway integrated video monitoring system, secret key technology, digital certificate authentication technology, encryption technology

摘要： 铁路综合视频监控系统在提高铁路运营管理效率、提升安全防范能力等方面发挥重要作用。视频建设覆盖规模不断扩大，综合视频监控系统自身面临的信息安全风险也逐步提高。通过探究密钥关键技术，以数字证书认证技术和加密技术等方法为支撑，参照GB 35114-2017的标准框架，提出基于密钥技术的铁路综合视频监控系统的应用方案。通过结合密钥关键技术，实现综合视频监控系统的数据加密及身份认证，保证视频数据安全，有效提升系统安全性和可靠性，为铁路行业的信息化、数字化的安全发展提供坚实的保障。

关键词: 铁路综合视频监控系统, 密钥技术, 数字证书认证技术, 加密技术