基于3G系统的合法监听功能设计研究

摘要

全网范围内的加密和合法监听是3G系统提出的新功能,然而这两个功能之间存在一定的矛盾.但监听接口仍是未明确的.着重在3G系统网络接入安全架构上,对认证与密钥协商的过程和安全性进行详细分析,提出了一个合法监听的可行方案.%The encryption and legal monitor on whole are new functions proposed by network3G System. However,there exists certain inconsistency between these two functions. But the interface for monitor is still uncertain. The security architecture on network accessing of 3G system is put forward, and the authentication and key agreement protocol are discussed in depth, then a new feasible scheme is presented for solving these issues.