Papers › Protecting Actuators in Safety-Critical IoT Systems from Control Spoofing Attacks
Protecting Actuators in Safety-Critical IoT Systems from Control Spoofing Attacks
Monowar Hasan, Sibin Mohan
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In this paper, we propose a framework called Contego-TEE to secure Internet-of-Things (IoT) edge devices with timing requirements from control spoofing attacks where an adversary sends malicious control signals to the actuators. We use a trusted computing base available in commodity processors (such as ARM TrustZone) and propose an invariant checking mechanism to ensure the security and safety of the physical system. A working prototype of Contego-TEE was developed using embedded Linux kernel. We demonstrate the feasibility of our approach for a robotic vehicle running on an ARM-based platform.
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