Authentication and Security Analysis for WLAN Based on RADIUS/EAP

This paper introduces the authentication and the architecture of IEEE802.1x Wireless Local Area Network based on the RADIUS/EAP, with respect to the characteristics of three parties coloration in accessing to WLAN, analyses the security mechanism, indicates that there would exist six security crushers either by the protocol defects or by the inadequate usage and deteriorating and it is necessary to fully utilize the data frame in the RADIUS/EAP structure for the encryption and authentication as well as to design the double-doors authenticated access mechanism. The four common authentication solutions are compared and the corresponding security functions in certain different extents are evaluated.