Novel Authentication Scheme for WLAN

Several shortcomings of two security standards in WLAN: IEEE 802.11i and WAPI are analyzed on efficiency and security.A fast/efficient authentication scheme for WLAN(FWAI) is proposed,which is based on tokens derived from Hash chains.Compared with 802.11i and WAPI,the proposed scheme needs fewer messages to authenticate STA in the foremost time,as well as session keys are negotiated efficiently.The scheme canot only against personating STA,AP and AS and messages replay attacks,but also can against DoS attacks effectively.