Implementation and Evaluation of the ACE DTLS Framework over Internet of Things Devices

Internet of Things (IoT)-devices are becoming more advanced and powerful than ever, and the application potential is increasing rapidly. This paper significantly contributes in three ways. First, it modifies, extends and implements the well-known security-driven authorization in a constrained environment-datagram transport layer security (ACE-DTLS) protocol's framework on resource-constrained IoT devices in a local network. Second, ACE-DTLS framework is compared with the Baseline method by adopting performance indicators for example, power dissipation, PLR, latency, overall network performance and a resource server. Third, radio duty cycles (RDC) are adopted for optimizing the energy efficiency of the constrained IoT devices during CPU processing. Experimental environment was examined with three tests i.e., COAP, COAP+token, and COAP+DTLS by putting router at three main distances (1m, 6m and 12m). It is observed that COAP has less PLR, power drain and latency than COAP+token and COAP+DTLS, while COAp+DTLS shows relatively high latency, power drain and PLR at 6m and 12m distances.