%0 Journal Article %T 基于Diffie-Hellman的无线Mesh网络快速认证机制<br>Fast authentication mechanism based on Diffie-Hellman for wireless mesh networks %A 苏彬庭 %A 许力 %A 方禾 %A 王峰< %A br> %A SU Bin-ting %A XU Li %A FANG He %A WANG Feng %J 山东大学学报(理学版) %D 2016 %R 10.6040/j.issn.1671-9352.2.2015.096 %X 摘要: 为了保证无线Mesh网络中移动客户端能够安全快速通过认证,提出了基于Diffie-Hellman算法的快速接入认证和切换认证两种方案。在接入认证方案中,Mesh客户端通过预分发的标签经4次握手完成首次接入认证后,计算用于切换认证的共享密钥,并将密钥预分发给切换的目标接入点。客户端在后续的移动过程中,利用共享密钥经3次握手完成双向认证,认证过程无需认证服务器的参与。对上述两种方案的安全性和性能代价进行了分析,结果表明新提出的两种认证方案的通讯代价和计算代价更小,具有认证时延短、认证效率高的优点,且在网络合法用户可信的前提下是安全的。<br>Abstract: In order to ensure the celerity and security in mobile client switching process of wireless Mesh networks, the fast login authentication and fast handover authentication scheme based on Diffie-Hellman algorithms were proposed. In login authentication process, the Mesh client is authenticated successfully with 4 rounds of message exchange by predistribution of tickets, followed by calculating their shared handover key and delivering it to any of its neighbor. With the shared key, the handover authentication process takes a 3-message handshake to accomplish mutual authentication when clients move to a new router. During the process, the authentication server does not need to be involved. The analysis of the scheme security show that the proposed schemes have less communication and computation overhead, lower authentication latency and higher authentication efficiency. And it is secure if the user is considered trustworthy %K Diffie-Hellman算法 %K 认证效率 %K 安全性 %K Mesh网络 %K < %K br> %K Diffie-Hellman algorithms %K security %K Mesh network %K efficiency %U http://lxbwk.njournal.sdu.edu.cn/CN/10.6040/j.issn.1671-9352.2.2015.096