Efficient key agreement algorithm for wireless body area networks using reusable ecg-based features

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Abstract

Wireless Body Area Networks (WBANs) are increasingly employed in different medical applications, such as remote health monitoring, early detection of medical conditions, and com-puter-assisted rehabilitation. A WBAN connects a number of sensor nodes implanted in and/or fixed on the human body for monitoring his/her physiological characteristics. Although medical healthcare systems could significantly benefit from the advancement of WBAN technology, collect-ing and transmitting private physiological data in such an open environment raises serious security and privacy concerns. In this paper, we propose a novel key-agreement protocol to secure communications among sensor nodes of WBANs. The proposed protocol is based on measuring and veri-fying common physiological features at both sender and recipient sensors prior to communicating. Unlike existing protocols, the proposed protocol enables communicating sensors to use their previ-ous session pre-knowledge for secure communication within a specific period of time. This will reduce the time required for establishing the shared key as well as avoid retransmitting extracted features in the medium and hence thwarting eavesdropping attacks while maintaining randomness of the key. Experimental results illustrate the superiority of the proposed key agreement protocol in terms of both feature extraction and key agreement phases with an accuracy of 99.50% and an error rate of 0.005%. The efficacy of the proposed protocol with respect to energy and memory uti-lization is demonstrated compared with existing key agreement protocols.

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APA

Al-Saeed, Y., Eldaydamony, E., Atwan, A., Elmogy, M., & Ouda, O. (2021). Efficient key agreement algorithm for wireless body area networks using reusable ecg-based features. Electronics (Switzerland), 10(4), 1–22. https://doi.org/10.3390/electronics10040404

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