V2V通信中基于身份的条件隐私保护认证方案

Identity-based conditional privacy-preserving authenticationscheme in V2V communication

在车联网中,只有确保交通信息在车辆之间安全的交互,才能保证乘客的安全和高效的交通管理.因此,安全和隐私问题是车联网中研究的热点.典型的攻击包括恶意的第三方修改和转发拦截消息等,当前最好的解决方案使得验证者能够验证所接收消息的来源,并在接收它们之前对消息的完整性进行检查.因为车辆的车载单元计算能力和存储容量都是有限的,这些方案没有充分解决在高流量密度区域中车辆通信时验证多条消息的效率问题.因此,该文提出了一种在V2V通信中基于身份的条件隐私保护认证方案.同时,文中方案支持批量签名验证,使得每辆车能够同时认证大量签名消息.通过性能评估,相比于类似的方案,文中方案在计算效率方面更高效.

In vehicular Ad Hoc Networks(VANETs),the passenger safety and efficient traffic management can be implemented only by ensuring the safe interaction of traffic-related messages between vehicles.Therefore,security and privacy issues are hot topics of research in VANETs.Typical attacks include malicious third-party modifications and forwarding of intercepted messages,etc.The best solution enables the verifier to verify the source of received messages and check their integrity before receiving them.Due to the limited computing capacity and storage capacity of vehicle s OBU,these solutions do not adequately address the efficiency of verifying multiple messages in high traffic density areas in VANETs communication.Therefore,in this paper,an identity-based conditional privacy-preserving authentication scheme in V2V communication is proposed.The scheme supports batch signature verification,enabling each vehicle to authenticate a large number of signed messages at the same time.Performance evaluation shows that our scheme is more efficient in terms of computational efficiency compared to similar schemes.