基于自我加密的无线局域网快速切换认证

Fast handoff authentication scheme of WLAN based on self-encryption

为了改善公共无线局域网切换延时对通信业务质量的影响并保证通信安全,提出一种无线局域网快速切换认证机制.该机制在Hwang-Yang动态密钥分发机制的基础上利用自我加密方法设计了无线局域网快速切换认证机制.分析表明,该机制在保证安全性的同时,在用户初次建立连接和切换的时候,分别需往返一次认证消息即可完成身份的相互认证以及密钥的分发.在进行切换的时候,用户无需和认证服务器进行交互,减少公共无线局域网切换延时.

A fast authentication scheme of WLAN （wireless local area network） is proposed to reduce the delay in handoff procedure. This technique is based on the dynamic key distribution scheme proposed by Hwang-Yang. When the user makes connection firstly, he only needs one round interaction to finish the mutual authentication between users, access point and authentication server. Furthermore, the user only needs one round interaction between user and access point to finish the re- authentication during the handoff. The analysis shows that the proposed authentication scheme minimizes the delay of the handoff.