Chen Jing, Li Tao, Huang Min
Yunnan Highway Network Toll Management Co., Ltd, Kunming, China.
Yunnan Key Laboratory of Digital Transportation, Kunming, China.
PLoS One. 2025 Jan 3;20(1):e0312854. doi: 10.1371/journal.pone.0312854. eCollection 2025.
The rapid development of Internet of Things technology has promoted the popularization of Internet of Vehicles, and its safety and reliability have become the focus of intelligent transportation system research. Vehicle-road collaboration relies on the collaborative computing and storage resources of the vehicle on-board unit (OBU), which are usually limited. When the vehicle in the edge area needs to do computing tasks such as intelligent driving, but its own computing resources are insufficient. Therefore, it needs other computing resources from idle vehicles and road side unit (RSU). This resource sharing can get additional computing resources to complete the task, and can be more convenient to complete the computing task quickly. Most current studies consider this type of resource sharing as a vehicle-to-vehicle (V2V) network transaction, aiming to stimulate the enthusiasm of vehicle sharing and optimize the utilization of computing resources in edge areas. However, the traditional blockchain transaction mode exposes serious privacy disclosure risks in vehicle networking resource transactions, including the openness and transparency of user identity, transaction details, and transaction addresses, which poses great challenges to data security. Therefore, this study innovatively proposed a blockchain-based privacy protection scheme for vehicle networking resource transaction details. By introducing committed value protection, zero-knowledge proof technology and constructing temporary transaction addressed mechanism. The scheme realized the comprehensive privacy protection of transaction funds, transaction details and transaction addresses, which could effectively avoid the disclosure of users' sensitive information. Compared with the existing methods, the proposed scheme not only greatly enhanced the privacy protection capability, but also ensured the efficiency and security of transaction verification through zero-knowledge proof, avoiding the direct exposure of private keys. Meanwhile, the experimental verification demonstrates that the scheme not only enhances the level of privacy protection but also does not augment the supplementary processing burden. Furthermore, it is evident that the scheme meets the rigorous requirements for real-time resource transactions in the Internet of Vehicles.
物联网技术的快速发展推动了车联网的普及，其安全性和可靠性已成为智能交通系统研究的重点。车路协同依赖于车辆车载单元（OBU）的协同计算和存储资源，而这些资源通常是有限的。当处于边缘区域的车辆需要进行诸如智能驾驶等计算任务，但自身计算资源不足时，就需要从闲置车辆和路边单元（RSU）获取其他计算资源。这种资源共享可以获得额外的计算资源来完成任务，并且能够更便捷地快速完成计算任务。当前大多数研究将这种类型的资源共享视为车对车（V2V）网络交易，旨在激发车辆共享的积极性并优化边缘区域计算资源的利用。然而，传统的区块链交易模式在车联网资源交易中暴露出严重的隐私泄露风险，包括用户身份、交易细节和交易地址的公开透明性，这对数据安全构成了巨大挑战。因此，本研究创新性地提出了一种基于区块链的车联网资源交易细节隐私保护方案。通过引入承诺值保护、零知识证明技术并构建临时交易地址机制，该方案实现了交易资金、交易细节和交易地址的全面隐私保护，能够有效避免用户敏感信息的泄露。与现有方法相比，所提方案不仅大大增强了隐私保护能力，还通过零知识证明确保了交易验证的效率和安全性，避免了私钥的直接暴露。同时，实验验证表明该方案不仅提高了隐私保护水平，还没有增加额外的处理负担。此外，很明显该方案满足车联网中实时资源交易的严格要求。
