This paper confronts the pressing challenges of sixth-generation (6G) wireless communication networks by harnessing the unique capabilities of Unmanned Aerial Vehicles (UAVs). With the ambitious promises of 6G, including ultra-reliable 1 Tbps data delivery and ultra-low latency, the demand for innovative solutions becomes imperative. Traditional terrestrial base stations, though effective, exhibit limitations in scenarios requiring ubiquitous connectivity, prompting the integration of UAVs. In response to these challenges, we introduce a comprehensive solution. This involves UAVs collaboratively downloading desired content from service providers, and subsequently establishing secure connections with users for efficient content exchange. Accordingly, we introduce two new protocols: a collaborative group data downloading scheme among UAVs called SeGDS, and SeDDS for secure direct data sharing through out-of-band autonomous Device-to-Device (D2D) communication. Leveraging certificateless signcryption and certificateless multi-receiver encryption, these protocols offer lightweight, certificate-free solutions with features such as user revocation, non-repudiation, and mutual authentication. Prioritizing high availability, the proposed protocols effectively detect Denial of Service (DoS) and free riding attacks. A thorough evaluation underscores the superiority of the proposed protocols in both security and efficiency over existing models; SeDDS reduces overall computation by 3x, imposing a lighter communication load on UAVs, while SeGDS meets swarm UAV security requirements, reducing communication costs by 4x with low computation cost.

翻译：本文利用无人机的独特能力，直面第六代（6G）无线通信网络的紧迫挑战。针对6G的宏伟愿景（包括超可靠1 Tbps数据传输和超低延迟），对创新解决方案的需求变得至关重要。传统地面基站虽然有效，但在需要普适连接的情景中存在局限性，这促使了无人机的集成。为应对这些挑战，我们提出了一种综合解决方案。该方案让无人机协作从服务提供商处下载所需内容，随后与用户建立安全连接以实现高效内容交换。据此，我们引入了两种新协议：一种在无人机间进行协作组数据下载的方案——SeGDS，以及一种通过带外自主设备到设备（D2D）通信实现安全直接数据共享的SeDDS协议。借助无证书签密和无证书多接收者加密技术，这些协议提供了轻量级、无证书的解决方案，并具备用户撤销、不可否认性和相互认证等特性。所提出的协议优先考虑高可用性，能有效检测拒绝服务（DoS）攻击和搭便车攻击。全面的评估突显了所提议协议在安全性和效率上均优于现有模型：SeDDS将总计算量降低了3倍，同时减轻了无人机的通信负载；而SeGDS在满足无人机集群安全要求的同时，以低计算成本将通信开销降低了4倍。