LTE/SAE密钥管理技术研究

Key Management Technology in LTE/SAE Network

随着LTE/SAE网络架构的改变,原来UMTS提供的网络接入安全机制已不能够满足网络变化的需求。为了应对所面临的各种威胁,LTE/SAE针对网络接入安全进行了大幅度的改进。文中主要针对LTE/SAE网络的安全层次、密钥架构和状态转换间的密钥管理机制等方面进行了研究,最后分析了存在的问题。

With the change of LTE/SAE network architecture, the original network access security mechanism provided by UMTS has not been able to satisfy the increasing requirements. In order to deal with various threats it faces, much improvement has been implemented. This paper focuses on the study of security layer, key structure, and key management mechanisms involved in state alteration in LTE/SAE network. Finally, an in-depth analysis on its existing problems is given.