车载自组网中高效的群组协商通信协议  

Efficient communication protocol of group negotiation in VANET

作　　者：韩牟[1] 华蕾 王良民[1] 江浩斌[2] 马世典[2] 

机构地区：[1]江苏大学计算机科学与通信工程学院,江苏镇江212013 [2]江苏大学汽车工程研究院,江苏镇江212013

出　　处：《通信学报》2018年第1期34-45,共12页Journal on Communications

基　　金：江苏省重点研发计划基金资助项目(No.BE2017035);江苏省"六大人才高峰"基金资助项目(No.DZXX-012);江苏省自然科学基金资助项目(No.12KJD580002);江苏省研究生创新基金资助项目(No.KYLX_1057)~~

摘　　要：提出一种高效的群组协商通信协议,针对节点身份认证的效率问题,采用群内节点自检认证的方式,避免向认证中心发送认证证书,从而提高身份认证的速度;针对通信的机密性和单点失败现象,采用节点协商建立群组的方法,进而实现节点间的可靠通信;针对合法车辆认证次数频繁问题,采用群密钥传输机制,减少合法车辆的认证次数,进而提高节点加入群组的速度。最后,安全性分析和性能分析结果表明,所提方案不但满足车载自组网(VANET,vehicle ad hoc network)通信的基本安全需求,并且在认证时延、传输开销和平均时延方面优于现有方案。An efficient communication protocol of group negotiation was proposed. The protocol adopted self-checking authentication in group to avoid the nodes sending certificates to the authentication center which improved the efficiency of identification. At the same time, the group establishment among nodes which through negotiation ensured the commu-nication confidentiality and prevented the phenomenon of single-point failure. Besides, a group key transmission scheme was proposed to reduce the frequency of authentication for legal vehicles and improve the speed of joining in the group. At the end, theoretical analysis and simulation results demonstrate that the proposed protocol not only meets the security requirements of communication in VANET, but also shows much better performance than previous reported schemes on verification delay, transmission overhead and average delay.

关 键 词：高效认证 密钥协商 群组通信 车载自组网 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]