DTSM: Digital Twin-Enabled Secure Multicast Signcryption Protocol for Low-Altitude UAV Networks

This paper proposes DTSM, a secure messaging protocol for coordinating large groups of UAVs (unmanned aerial vehicles, or drones) using digital twins (virtual digital copies of physical systems). The protocol uses signcryption (a technique that encrypts messages and proves their authenticity simultaneously) to send commands to many UAVs at once while keeping communication costs low, addressing a problem where sending the same message to many recipients becomes expensive as the group grows larger.