车载自组织网络基于智能卡的安全认证方法

摘要

为满足车载自组织网络的应用安全性和实时性要求，提出一种基于智能卡的用户认证方法。研究当前几种主要用户认证方法，指出现有方法在安全性能或计算开销方面存在的不足；讨论基于智能卡的安全认证方法，描述用户注册过程、用户认证算法，以及基于邻居节点的越区切换算法；分析各种安全认证方法的安全性能和计算开销。分析结果表明，该方法可以有效提高安全性能，降低计算开销，具有可行性和有效性。%To meet the requirements of the secure and real-time performance for the vehicular Ad Hoc network applications ,a kind of user authentication algorithm based on smart cards was proposed .First ,some currently major user authentication proto-cols were studied ,and their disadvantages of the security performance and the computation overhead were mentioned .Then ,the user authentication algorithm based on smart cards was discussed ,and the user register process and the user authentication process ,as well as the handoff algorithm based on neighbor cells were described .Furthermore ,the security performance and the calculation overhead of several user authentication protocols were analyzed .The analyzing results show that the proposed algo-rithm can improve security performance and reduce calculation overhead efficiently .