A Security Authentication Scheme in Wireless LAN for Portable Terminal

The portable terminal such as iPad, WIFI phone has limited computing power and transmission bandwidth compared with specialized computer, which is difficult to implement key cryptography algorithm with large amount of calculation question. This paper introduces a new EAP authentication method based on EAP-SAKE using hash function. Analysis result shows that the method can provide mutual authentication and key negotiation between peers,and can resist replay attack and man-in-middle attack.It has less communication load and computing amount, so it is more suitable for protecting the information security to portable mobile terminal which has limited resource in WLAN.