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无线局域网络(Wireless Local Area Networks,WLAN)是相当便利的数据传输系统,它利用射频(Radio Frequency,RF)的技术取代旧式双绞铜线构成局域网络,使得用户可以在它覆盖的几百米范围内使用无线设备自由移动。其使用及其方便且价格便宜,但由于无线局域网具有很大的开放性,其面临着更严峻的安全问题。该文在阐述无线局域网安全发展概况的基础上,分析了无线局域网的安全必要性,并从不同方面总结了无线局域网遇到的安全风险,同时重点分析了IEEE802.11b标准的安全性、影响因素及其解决方案,最后对无线局域网的安全技术发展趋势进行了展望。
Wireless Local Area Networks (WLAN) is a very convenient data transmission system. It uses radio frequency (RF) technology to replace the old twisted pair copper wire to form a local area network, allowing the user to use a few hundred meters Use the wireless device within the range to move freely. Its use and convenient and cheap, but because of the great openness of wireless LAN, it faces more serious security problems. Based on the overview of wireless LAN security development, this paper analyzes the necessity of wireless LAN security and sums up the security risks encountered in wireless LAN in different aspects. At the same time, it mainly analyzes the security and influence factors of IEEE802.11b standard And its solutions. Finally, the development trend of wireless LAN security technology is prospected.