Preserving Privacy of Drone Videos using Proxy Re-encryption Technique

Unmanned Aerial Vehicles (UAVs) also known as drones are being used in many applications where they can record or stream video. One of such applications is the Intelligent Transportation Systems (ITS) where drones may need to record videos and send a control center to be shared by various clients such as law enforcement or emergency personnel. In such cases, the recording might include faces of civilians or other sensitive information that might pose privacy concerns. While the video can be encrypted and stored in the cloud that way, it can still be accessed once the keys are exposed to third parties. To prevent such cases, in this paper, we propose a proxy re-encryption technique that will provide a key to third parties that can be used only once to access the videos. The key management is handled by a trusted control center. The implementation results indicate that there is almost no additional overhead with the approach while it can still preserve the privacy.