Abstract
Wireless Local Area Networks (WLAN) allow end users to wirelessly access Internet with great convenience at home, work, or in public places. WLANs are currently being widely deployed in our real life with great success. However, it is still in its infant stage as long as security is concerned. In this chapter, we briefly overview the security issues in the Wireless Local Area Networks (WLAN). After a short introduction to the background of WLAN, we present WLAN security requirements and categories of current real-worldWLAN attacks. We then describe some details of several representative WLAN security protocols such as WEP, WPA, WPA2, and WAPI. We also survey security issues of the WLAN access points such as rogue access points and evil twin attacks. Finally, we overview other security mechanisms that can be used to enhance WLAN security, including Wireless Firewalls, Wireless VPN, and Wireless IDS.
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