Quantum-proof authentication is essential for vehicular communications as the threat of quantum computing attacks on traditional encryption methods grows. Several lattice-based authentication protocols have recently been developed to help with this issue, but they come with hefty storage and communication overheads. Most of them also fail to provide strong anonymity for vehicles and edge nodes and can not support authentication for vehicles from multiple domains. This study presents a new lattice-based authentication protocol for vehicular communications that addresses limitations of previous methods and offers advanced security features such as anonymity, and unlinkability. The protocol utilizes a distributed ledger to store public keys, making the system more secure, tamper-proof, and efficient for key revocation in large networks. Additionally, it allows for a multi-domain authentication system for vehicular communication with improved security and flexibility. The proposed protocol's security is evaluated both formally and informally to demonstrate its resistance against the well-known attacks. Additionally, the performance analysis indicates that the proposed protocol surpasses current protocols and is suitable for vehicular communications.

中文翻译：

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用于车辆通信的基于匿名格的身份验证协议


随着量子计算对传统加密方法的攻击威胁不断增加，防量子身份验证对于车辆通信至关重要。最近开发了几种基于网格的身份验证协议来帮助解决这个问题，但它们会带来大量的存储和通信开销。它们中的大多数也无法为车辆和边缘节点提供强匿名性，并且不能支持来自多个域的车辆认证。这项研究提出了一种用于车辆通信的新的基于点阵的身份验证协议，该协议解决了以前方法的局限性，并提供了先进的安全功能，例如匿名和不可链接性。该协议利用分布式账本来存储公钥，使系统更加安全、防篡改，并且在大型网络中能够高效地进行密钥撤销。此外，它还支持用于车辆通信的多域身份验证系统，提高了安全性和灵活性。所提出的协议的安全性经过正式和非正式的评估，以证明其对众所周知的攻击的抵抗力。此外，性能分析表明，所提出的协议超越了当前协议，并且适用于车辆通信。