In the study, we propose a double blockchain based vehicular system for optimizing data storage and securing communication in Internet of Vehicles (IoV) networks. We propose an incentive mechanism and a reputation system to reduce the selfish and distrustful behavior of IoV nodes. Moreover, we propose an encryption technique to protect the proposed system from passive and active attacks. The proposed technique is a hybrid of Rivest Shamir Adleman and Advanced Encryption Standard-256 (AES-256+RSA). We use this hybrid approach to efficiently and secretly share the users' secret keys. To address the issues of high resource consumption and communication delay, we propose a cache memory technique for miner and controller nodes. In addition, we propose an authentication mechanism to remove malicious nodes from the system. The simulation results depict that our system provides security, scalability, optimized data storage, node's trustworthiness, and transparent data sharing.

在研究中，我们提出了一种基于双区块链的车载系统，用于优化数据存储和保护车联网 (IoV) 网络中的通信。我们提出了一种激励机制和信誉系统，以减少车联网节点的自私和不信任行为。此外，我们提出了一种加密技术来保护所提出的系统免受被动和主动攻击。所提出的技术是 Rivest Shamir Adleman 和高级加密标准 256 (AES-256+RSA) 的混合体。我们使用这种混合方法来有效和秘密地共享用户的密钥。为了解决高资源消耗和通信延迟的问题，我们提出了一种用于矿工和控制器节点的缓存技术。此外，我们提出了一种身份验证机制来从系统中删除恶意节点。