Key Agreement & Authentication Protocol for IEEE 802.11
WPA and WPA2 (Wi-Fi Protected Access) is a certification program developed by the Wi-Fi Alliance to indicate compliance with the security protocol created by the WiFi alliance to secure wireless networks. The alliance defined the protocol in response to several weaknesses researchers had found in the previous Wired Equivalent Privacy (WEP) system. Many sophisticated authentication and encryption techniques have been embedded into WPA but it is still facing a lot of challenging situations. In this paper we discuss the vulnerability & weakness of WPA. This paper also present solutions or suggestions which will improve Wi-Fi Protected Access (WPA) protocol. We provide a brief description of the different functional entities and we investigate several technical issues including infrastructure and aspects related to the AAA (Authentication, Authorization, and Accounting) procedures for users as well as the system security. Also we suggest different key agreement algorithm & encryption techniques.
