无线局域网中的认证机制

Authentication Mechanisms in WLAN

当前无线局域网(WLAN)主要的认证技术包括了IEEE 802.11中的开放系统认证和共享密钥认证,IEEE 802.11i中的802.1x认证协议,以及我国的无线局域网安全标准WAPI中的WAI认证机制。概述了以上各种认证机制,讨论了它们各自的优缺点,并根据其存在的安全漏洞,给出了两种改进方案。最后给出了WLAN认证机制的进一步研究方向。

Now the main authentication techniques of wireless local area network（WLAN） include open system authentication and shared key authentication in IEEE 802.11, 802. 1x authentication protocol in IEEE 802. 11i,and WLAN authentication infrastrture（WAI） authentication mechanism in national WLAN security standard WAPI （WLAN authentication and privacy infrastructure）. In the paper, gives a detailed introduction to various anthentication mechanisms mentioned before,and discusses their respective advantages and disadvantages. According to their security leaks,gives two amelioration schemes. In the end,concludes the further research direction for WLAN authentication mechanisms.