International Journal of Computer Applications
In today's world most organizations are moving from wire connected LAN to wireless LAN. The phenomenal popularity of the 802.11 network standards stems from the fact that they provide for wireless connections with ease and convenience. Recently, security holes have been identified in the operation of 802.11 networks, and the 802.11i protocol has been announced to protect such networks. However, there are still security issues that prevent the 802.11 network from becoming the best choice protocol for wireless LANs. The authors reviewed 802.11i security with a focus on a Denial of Service attack. This attack exhausts the client's memory using a vulnerability of the key derivation procedure in 802.11i.