Exploration on SA Query Mechanism in IEEE 802.11w

Introduction

With the popularity of the internet in recent years, many multifunctional data and multimedia terminal have been designed and widely used, which lead to the rapid development of wireless communication and internet technology. While the development of wireless local area network (WLAN), security problems become increasingly exposed(Xiao,2013) .Therefore, an amendment has been made by IEEE in 2004 to enhance the data security and user authentication mechanism, which known as IEEE802.11i.It can protect data frame, while the management frame is still left unencrypted when transmission. The attacker can easily intercept analysis or counterfeit messages on wireless equipment. Which leads to the consequence that communication cannot be performed normally in the network. To address this issue, IEEE launched the IEEE 802.11w protocol in 2009, which protected the use of a few management frames including (de-)authentication, Disassociation and Robust Action Frames, Robust Action Frames are shown in Table 1.