面向V2I通信的异构跨域条件隐私保护环签密方案  

A Heterogeneous Cross-Domain Conditional Privacy Protection Ring Signcryption Scheme for V2I Communication

作　　者：罗铭[1] 詹骐榜 邱敏蓉 LUO Ming;ZHAN Qibang;QIU Minrong(School of Software,Nanchang University,Nanchang 330047,China;GongQing Institute of Science and Technology,Jiujiang 332020,China)

机构地区：[1]南昌大学软件学院,南昌330047 [2]共青科技职业学院,九江332020

出　　处：《信息网络安全》2024年第7期993-1005,共13页Netinfo Security

基　　金：国家自然科学基金[62262041];江西省研究生创新专项基金[YC2023-S013];江西省高校人文社会科学研究项目[JC22217]。

摘　　要：V2I通信是车载自组织网络的重要组成部分。确保在V2I中消息的安全传输一直是近年来研究人员研究的热点,提出了各种适用于V2I通信的条件隐私保护方案。然而,现有大多数基于环签密的方案中,普遍的假设是发送者和接收者都必须处于相同的密码体制和使用相同系统参数的同一域中。随着通信场景的复杂化,这种假设存在局限性,并且大多数基于环签密的方案未能满足已知临时会话密钥安全。为了解决这些问题,文章提出了一种面向V2I通信的异构跨域条件隐私保护环签密方案。该方案实现了无证书密码体制中的车辆到公钥基础设施密码体制中的基础设施的跨域通信。在随机预言机模型中进行了严格安全性证明,结果显示文章方案满足机密性和不可伪造性。与4种提供类似功能的方案进行比较分析,文章方案具有最低的计算成本和跟踪成本。The vehicles-to-infrastructure (V2I) communication is an important component of vehicle self-organizing networks.Ensuring secure transmission of messages in V2I has always been a focus of research,and various conditional privacy protection schemes suitable for V2I communication have been proposed in recent years.However,in most existing ring signcryption-based schemes,the common assumption is that both the sender and receiver must be within the same cryptographic system and use the same system parameters within the same domain.With the complexity of communication scenarios,this assumption has limitations,and most signcryption-based schemes fail to meet the known temporary session key security.To address these issues,we proposed a heterogeneous cross-domain conditional privacy protection ring signcryption scheme for V2I communication.Our scheme enabled cross-domain communication between vehicles in certificateless cryptography (CLC) and infrastructure in Public Key Infrastructure (PKI).In the Random Oracle Model (ROM),our scheme satisfied confidentiality and unforgeability through rigorous security proofs.Compared with four schemes that provide similar functions,our scheme has the lowest computing cost and tracking cost.

关 键 词：异构 跨域 车辆与基础设施 条件隐私 环签密 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]