无线局域网的安全性分析和研究

Research of the Security of Wireless Local Area Network

无线局域网因其易移动、低成本和高可靠性的优点,得到了广泛的应用。但其接入的不可控制性正是其安全性问题的症结所在。文中从扩频通信、访问控制、数据加密3方面讨论了IEEE802.11系列无线局域网的网络接入和数据传输的安全性机制,介绍了新一代无线局域网中使用的安全技术及新的安全标准的IEEE802.11i。重点研究了无线局域网的访问控制技术和数据加密技术。

WLAN （ Wireless Local Area Network） has been in wide use because of its mobility, reliability and cheapness. The difficulty of access control is the sticking point of its security problems. In this paper, network access and security mechanism of IEEE802.11 WLAN protocol series are discussed, mainly on the spread spectrum, access control, data encryption aspects. The security technique and new security standard of IEEE802.11i used in new generation WLAN are also introduced. The main topics of this paper are on the access control and data encryption techniques in WLAN.