论文部分内容阅读
从用户的可控性、通信的保密性和服务的可用性三个方面,对TETRA数字集群网安全保障体系进行了分析。首先,从鉴权、隐藏用户识别码、允许与禁用机制三方面探讨了如何对用户进行识别、保护和管控;其次,比较了空中接口加密、端到端加密、虚拟专网三种手段如何实现通信保密;最后,分析了物理环境、系统构架、频率保护、拥堵控制等安全因素对网络服务可用性的影响。并针对国内应用现状与存在问题,就如何加强中国TETRA数字集群网安全保障体系建设提出几点建议。
TETRA digital trunked network security assurance system is analyzed from the aspects of user controllability, communication confidentiality and service availability. Firstly, it explores how to identify, protect and control users from three aspects: authentication, hidden user identification code, permission and disabling mechanisms. Secondly, it compares how air interface encryption, end-to-end encryption and virtual private network are implemented Communication confidentiality; Finally, the paper analyzes the influence of security factors such as physical environment, system architecture, frequency protection and congestion control on the availability of network services. In view of the current situation and existing problems in China, some suggestions are put forward on how to strengthen the construction of China TETRA digital security system.