TD-SCDMA通信网络安全中的AKA机制研究

AKA Mechanisms in TD-SCDMA Network Security

文章从公用3G移动通信系统的安全需求入手,参照信息系统的安全保密体系原理,通过对公众TD-SCDMA网络的安全保密体系进行分析,阐述了TD-SCDMA系统安全模式建立的过程,针对其中的重点环节即AKA的具体流程、实现及异常处理进行了全面的分析,并指出了它存在的问题和解决思路。

This paper analyses the security hierarchy of 3G mobile communication system based on the security demand for 3G mobile communication system and in the light of the principle for security hierarchy in information system. It also discribes the set-up process of TD-SCDMA securitymode. And the key parts, that is, the concrete procedure, implementation and abnormal reaction of authentication and key agreement （AKA） are adequately analyzed. Finally, the problems and solutions of these problems are pointed out.