Platooning technologies enable trucks to drive cooperatively and automatically, which bring benefits including less fuel consumption, more road capacity and safety. In order to establish trust during dynamic platoon formation, ensure vehicular data integrity, and guard platoons against potential attackers, it is pivotal to verify any given vehicle's identity information before granting it access to join a platoon. To address this concern in dynamic truck platooning, we present a novel location-aware and privacy-preserving verification protocol based on zero-knowledge proof and permissioned blockchain. By performing the verification process within the spatially-local area defined by a given platoon, our system can provide lower latency and communication overhead compared to a location-agnostic blockchain system. We prototype the proposed system and perform benchmark tests on the Hyperledger platform. The experimental results show that our system is suitable for real-world truck platooning.

翻译：队列技术使卡车能够协同自动驾驶，从而带来降低燃油消耗、提升道路容量及安全性等多重效益。为在动态队列形成过程中建立信任、确保车辆数据完整性并防御潜在攻击者，必须在授予车辆加入队列权限前对其身份信息进行严格验证。针对动态卡车队列中的这一挑战，我们提出了一种基于零知识证明与许可型区块链的新型位置感知隐私保护验证协议。通过在指定队列定义的局部空间区域内执行验证流程，相较于不感知位置的传统区块链系统，本系统能显著降低延迟与通信开销。我们基于Hyperledger平台构建了系统原型并完成基准测试，实验结果表明该系统适用于实际卡车队列场景。