| Popis: |
Use of unmanned systems in various tasks has increased exponentially in the recent past. These systems enable users to complete vital missions efficiently, without risking human lives. Nonetheless, these systems pose a threat to the general population if the operational cyber security is not handled. Especially, the armed unmanned aerial vehicle systems (UAVS), which can cause catastrophic damage to life and property. It is important to know the risk and understand the impact of various possible attacks on the overall UAVS. Clearly, the most economical way to achieve this is to simulate operational scenarios of UAVS before actual deployment. In this dissertation, we propose methods to assess various threats, develop threat models, evaluate risk and impact of attacks. We finally use these methods to develop a simulation testbed environment for Unmanned Aerial Vehicle Networks (UAVNet) cyber security analysis. The testbed was designed to be open source to enhance the usability and audience reach. We also demonstrated the use of this testbed in academia for any related research or student learning and consequently, a performance evaluation of the testbed for use in generic computing environment was carried out. Based on the experiments performed for various communication denied scenarios, we evaluate the impact of various attacks against UAVNet from the communication perspective and report the results to demonstrate the necessity and usefulness of the simulation testbed. Implemented attacks include Distributed Denial of Service (DDoS), Jamming, GPS Jamming and GPS Spoofing. Additional implementation of an anti-spoofing technique for GPS spoofing was further done to indicate the usefulness of testbed and flexibility to develop attacks as well as their detection and mitigation measures. |
