基于IEEE802.11b WLAN安全技术研究

Security Technology Based on IEEE 802.11b WLAN

随着无线局域网(WLAN)技术的迅速发展,其安全问题日益受到人们的关注。由于传输的特殊性,WLAN始终面临严峻的安全考验。无线网络攻击技术的不断翻新,基于IEE802.11b的攻击技术会越来越多,复杂性将越来越高。所以与有线网路相比,保护WLAN安全的难度要远大于保护有线网络。文中介绍了基于IEEE802.11b协议下的WLAN可能面临的非法登录、拒接服务、字典攻击等安全威胁,分析了如何提高WLAN下的几种安全机制及802.11协议下的802.11i安全标准。提出了现有无线设备使用中一些可提高WLAN安全性的解决措施,在一定程度上提高了WLAN的安全性。

As wireless LAN（WLAN） technology is developing rapidly,their safety has attracted increasing attention.As the transmission of particularity,WLAN security has always been facing a severe test.As the wireless network attack techniques are constantly devised,based on IEE 802.11b technology will attack more and more complexity will more and more.Therefore,compared with the wired network,WLAN security protection is far greater than the difficulty of protecting cable network.Described in detail under the agreement based on the IEEE 802.11b WLAN may face illegal log,refused to accept service,dictionary attacks and other security threats,and a detailed analysis of how to improve WLAN security mechanisms and several under the 802.11 protocol under the 802.11i security standard.Put forward some of the existing wireless devices can improve WLAN security solutions,to some extent,these measures effectively improved WLAN security.