<p>Today Internet of things (IoT) interconnects any object possessing sensing and computing capabilities to the internet. In this era, increasing number of electronic devices and applications in Internet of Things (IoT) requires secured communication with low power consumption capabilities. As security is a major challenge in internet of things, it is important to design a key management solution that considers resource constrained nodes and hence key management in public key cryptography is a crucial issue. In this paper, a novel key exchange algorithm was developed and implemented on a low powered “Raspberry pi machine” to realize the overall impact it creates on the device. The performance of the proposed algorithm had shown a great improvement over the popular Diffie Hellman key exchange algorithm and a two-level security for data exchange between the parties is implemented.</p>
WPAN using IEEE 802.15.4 protcol operated in non beaconing mode an attempt has made to find out the most significant factor of defacto parameters of IEEE 802.15.4 to enhance the performance by minimizing energy consumption and to enhance the network lifetime of the Wireless Personal Area Networks(WPAN). The factors include Buffer size, Beacon Interval, Back-off-transmission has an ideal impact on QoS metrics in IEEE 802.15.4 protocol. A Design of experiments have been simulated to an optimum level using the taguchi approach. The experimental results from the taguchi approach reveales that Back-of-transmission as the most significant factor for IEEE 802.15.4 in minimizing the power consumption in the WPAN.
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