Key Technologies for Secure Data Transmission in Low Altitude UAVs

This paper presents a comprehensive analysis of secure data transmission technologies for low altitude unmanned aerial vehicles (UAVs). As UAVs become increasingly deployed in military, civilian, and commercial applications, the security vulnerabilities in UAV communication systems pose significant risks. We propose a multi-layered security framework that addresses the unique challenges of UAV data transmission, including lightweight cryptographic algorithms, physical layer security mechanisms, secure key distribution schemes, and anomaly detection systems. Our experimental results demonstrate that the proposed security solutions provide robust protection against common attacks while only increasing computational overhead by 5-8% and communication latency by 3-5%. Performance evaluations reveal significant improvements in resistance to man-in-the-middle attacks, replay attacks, and hijacking attempts compared to traditional security approaches. The framework's efficient design makes it particularly suitable for resource-constrained UAV environments while maintaining a high level of security assurance.