面向VANET的多层次匿名认证方案  

A security communication mechanism based multiple levels of anonymity in VANET

作　　者：姚汝贤[1] 

机构地区：[1]黄淮学院信息工程学院,河南驻马店463000

出　　处：《中国科技论文》2015年第14期1626-1631,共6页China Sciencepaper

基　　金：河南省重点科技攻关项目研究基金资助项目(142102210335)

摘　　要：本文提出多层次匿名认证AMLA(authentication with multiple levels of anonymity)方案。AMLA方案利用基于身份签名机制及别名策略实现消息的不可否认性、完整性匿名认证。通过控制每个车辆的别名数量和每个别名的有效期,实现不同车辆的不同层次的匿名。同时为每个别名秘密地绑定该别名的有效截止日期,从而实现隐晦的别名撤销机制,减少系统开销。理论分析和仿真结果表明,AMLA方案在高速处理器环境下消息签名时延仅为10.731ms,验证时延为10.853ms,并且具有较低的消息丢失率,证实了AMLA方案的有效性。An authentication with multiple levels of anonymity(AMLA)is proposed.The signature mechanism and pseudonyms are applied in AMLA to implement anonymous authentication with source non-repudiation and integrity.By controlling the number of pseudonyms issued to a vehicle and the lifetime of each pseudonym for a vehicle,the protocol is able to control the level of anonymity provided to a vehicle.The protocol cryptographically binds an expiry date with all pseudonyms to enforce an implicit revocation for the pseudonyms.Analytical and simulation results show that the delay of signature and verification is only 10.731 ms and 10.853 ms.

关 键 词：车载网 匿名 认证 别名 基于身份签名 多层次 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]