摘要
条件匿名认证是实现车联网中安全隐私保护的有效方式。在群签名的基础上,本文提出了一种适用于车联网的车辆可撤销群签名机制,方案实现了车辆的动态加入和撤销,且能够实现车联网的安全隐私保护。当车辆加入车辆群时,RSU在不改变群内其他车辆密钥及证书的情况下,为其生成群成员证书用于签名消息;当车辆撤销时,RSU通过车辆的匿名身份,更新撤销列表,且验证计算开销与群成员个数及已撤销成员个数无关。
Conditional anonymous authentication is an effective way to protect the security and privacy in VANET.This paper proposes a revocable group signature scheme,which is suitable for VANET based on the group signature technique.In the scheme,the dynamic addition and revocation of the vehicle is realized,and the security and privacy protection of VANET are met.When the vehicles come to the group,RSU can calculate group members certificate for them to sign the message without changing the keys and certificates of other vehicles.When the vehicles are revoked,the RSU simply updates the revocation list through the anonymous identity of the revoked members,and the verification workload are independent of the number of members and revoked members.
作者
冯丽娟
姚源
张春花
FENG Li-juan;YAO Yuan;ZHANG Chun-hua
出处
《信息技术与信息化》
2017年第9期30-34,共5页
Information Technology and Informatization
基金
"十二五"国家科技支撑计划项目(2015BAG19B02)
关键词
车联网
认证
条件匿名
群签名
车辆撤销
VANET
authentication
conditional anonymous
group signature
vehicle revocation
