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In this paper, we present a comprehensive approach that leverages the capabilities of blockchain technology to protect private data in 6G UAV networks. We propose a dual-layer structure UAV swarm model based on blockchain, aiming to enhance the security during collaborative mission execution and data sharing between UAVs, and ensure data integrity through the decentralized ledger of blockchain security and access control. In addition, we study a dynamic trust assessment method that can evaluate the trustworthiness of UAV nodes, demonstrate adaptability to network fluctuations and potential attacks by evaluating various trust parameters and dynamically adjusting trust propagation and update strategies, while combining district Blockchain technology to identify and mitigate malicious attacks. We also investigate a tailored lightweight blockchain solution designed for UAV networks with constrained resources, aiming to boost efficiency via streamlined consensus protocols, intelligent allocation of computing resources, and decentralized storage strategies. The result is a safe and efficient data sharing platform customized to meet the unique needs of UAVs. Together, these strategies provide a powerful framework to fully protect private data in 6G UAV networks, leveraging the security and decentralization provided by blockchain technology.
Liu et al. (Mon,) studied this question.