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Accountable credential management system for vehicular communication

机译：车辆通信负责凭证管理系统

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Social Internet of Vehicles (SIoV) is becoming a reality where private and secure communication is a prerequisite. Various standardization organizations and studies have reached a consensus to use Vehicular Public-key Infrastructure (V-PKI) in order to secure SIoV systems. However, significant security- and trust-related problems remain unsolved. This study presents an Accountable Credential Management System (ACMS) for vehicular communication to solve these problems. ACMS builds on transparency log (Distributed ledger technology) schemes for web PKI but addresses the challenges specific to vehicular communication. ACMS transparently handles certificate-related use cases, namely, certificate provision, registration, validation, and revocation. It also enhances the security of vehicular communication through constant monitoring; hence, assuring that no pseudonym certificate is accepted by vehicles before being logged and witnessed. With an efficient data structure known as the Accumulation Tree (AT), we extend the conventional transparency log to provide a cost-effective and trustworthy authentication process without relying on certificate revocation lists. Time cost and performance analyses show that the proposed approach is feasible and scalable than existing V-PKI schemes. Moreover, using Tamarin Prover, it is verified that our proposed technique provides defense against an active adversary. (C) 2020 Elsevier Inc. All rights reserved.
机译：社交车辆（SIOV）正在成为一个现实，私人和安全的沟通是先决条件。各种标准化组织和研究达成了使用车辆公共关键基础设施（V-PKI）以保护SIOV系统的共识。但是，仍未解决了明显的安全和相关的问题。本研究提出了一个负责任的凭证管理系统（ACMS），用于解决这些问题。 ACMS构建了Web PKI的透明度日志（分布式分类账技术）方案，但解决了车辆通信特定的挑战。 ACMS透明地处理与证书相关的用例，即证书提供，注册，验证和撤销。它还通过恒定监测增强了车辆通信的安全性;因此，在记录和见证之前，车辆可以接受任何假名证书。通过称为累积树（AT）的有效数据结构，我们将传统的透明度日志扩展为提供成本效益和可靠的身份验证过程，而无需依赖证书撤销列表。时间成本和性能分析表明，所提出的方法比现有的V-PKI方案可行，可扩展。此外，使用Tamarin Prover，验证了我们的建议技术为反对积极的对手提供防御。 （c）2020 Elsevier Inc.保留所有权利。

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