WLAN拒绝服务攻击分析与研究

Analysis and study of Denial of Services attack for WLAN

无线局域网飞速发展,其安全问题不容忽视,尤其是拒绝服务攻击问题。该文分析了由于无线局域网的特点所造成的信道干扰攻击、针对AP关联表的溢出攻击、针对802.11i中的4次握手攻击等各种可能的拒绝服务攻击方式。同时,该文也总结了该领域最新的研究成果,指出了其中的一些不足。并针对所暴露出来的问题提出了相互认证的方式解决不完善的认证机制所造成的攻击;提出"攻击缓冲"机制,以应对802.11X中的4次握手攻击问题。

The wireless Iocal area network（WLAN） develops at full speed , and the safe pPoblem should not be ignored, especially the denial of services attack（DoS） problem. This paper analyses the Channel Disturbance attack, the AP＇ s Association table overflow attack,the Four Handshake attack of 802.11i and other way of attack because of the WLAN＇ s characters. It also sutures up the new research of this field,and points out its deficiency of them. And to the present problem ,the author proposed ＂Mutual Authentication＂ for the solution of attack because of the Imperfection of authentication mechanism; and proposed the ＂attacking buffer ＂ for the four handshake attack in the 802.11X.