一种基于身份签名的快速垂直切换认证机制研究  

An Identity-based Signature Authentication Mechanism of Fast Vertical Handoff

作　　者：李桥龙[1] 黄开枝[1] 金梁[1] 

机构地区：[1]国家数字交换系统工程技术研究中心,河南郑州450002

出　　处：《通信技术》2009年第12期64-66,共3页Communications Technology

基　　金：国家863计划项目(No.2007AA01Z434);新世纪优秀人才计划项目资助

摘　　要：无缝垂直切换是异构无线网络融合的关键技术。通过分析垂直切换的执行过程,指出切换重认证所带来的长时延和分组丢失是影响切换性能的重要因素。对比分析了现有的几种重认证解决方案,指出了各种方案的利弊。最后,从统一认证的理念出发,权衡重认证的安全性和切换效率,提出了一种基于身份签名的快速重认证方案。该方案仅需移动节点保持一套认证信息,并与认证服务器交互一次就可完成双向认证,大大缩减了切换时延,提高了切换效率。Seamless vertical handoff is one of heterogeneous wirelss networks. The long delay main factor affecting the performance of and heavy the challenging technologies in the integration of packets-loss introduced by the re-authentication is the vertical handoff. Then, comparison of some representative re-authentication mechanisms are given, advantages and disadvantages of each mechanism are discussed. Finally, from the viewpoint of unified authentication and in consideration of tradeoffs between security and efficiency, a identity-based signature re-authentication mechanism is proposed. It could implement mutual authentication with which the mobile node just holds only one suit of authentication information and needs only one interaction with the authentication server, thus greatly reducing the handoff delay and improving the performance.

关 键 词：异构无线网络 快速垂直切换 身份签名 统一认证 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]