基于融合网络的WLAN漫游认证方式研究

在网络融合的趋势下，通过电信网络为WLAN网络提供终端认证将是未来WLAN业务认证的主要方式。为高效、安全地实现网间漫游状态下WLAN的鉴权认证，本研究分析了在网间漫游状态下WLAN的鉴权需求，讨论了鉴权模式、流程和存在的问题，提出了基于EAP SIM/AKA协议的、非中转方式的WLAN漫游认证方案，并进行了验证。实验结果证明该非中转认证方案可以满足终端在漫游状态下实现EAP SIM/AKA认证的需要，同时增强了系统的安全性，降低了投资成本，实现了实时计费。

Research of WLAN authentication in roaming environment with the trend of network integration

In the tendency of network convergence,the method of WLAN network client authentication based on telecommunications network will be the main way of WLAN authentication in the future.In order to make WLAN authentication efficiency and security under roaming condition,WLAN authentication requirements were analyzed,the authentication mode,the process and the existing problems were discussed.An application model and design scheme of WLAN network client authentication based on EAP SIM/AKA protocol with the trend of network integration were proposed and verified.Experimental results show that this application model can complete the EAP SIM/AKA protocol identification of a WLAN client in roaming process,reduce the investment of networks,keep the safety grades of the nodes in the visited WLAN with the initial safety grades,and realize the real-time charging.