A Mobile Code-driven Trust Mechanism for detecting internal attacks in sensor node-powered IoT

The ubiquitous use of Internet-of-Things (IoT) is enabling a new era of wireless Sensor Nodes ( SN s) that can be subject to attacks like any other piece of hardware and software. Unfortunately, an open and challenging issue is to what extent legitimate SN s can be trusted. This paper presents an energy-efficient, software-defined-network-based Mobile Code-driven Trust Mechanism ( MCTM ) for addressing this issue by assessing trust of SN s based on their forwarding behaviors. MCTM uses mobile code to visit the SN s based on pre-defined itineraries while collecting necessary details about these SN s in preparation for assessing their trust. The results gained from the experiments demonstrate a superior performance over a state-of-art technique that is energy-efficient management based on Software-Defined Network ( SDN ) for SN s. Message overhead is reduced by approximately 50%, which results in consuming less energy when detecting malicious SN s.