Secure and energy efficient cryptographic algorithms for wireless body sensor network

Abstract

Wireless Body Area Networks (WBANs) play an increasingly newlinecrucial role in healthcare and wearable technology, but security remains a newlineparamount concern. This research introduces a comprehensive strategy to newlinebolster WBAN security through the development of three intricate frameworks. newlineThe proposed Secure Wireless Body Sensor network (S-WBSN) newlineframework addresses the crucial components of lightweight mutual newlineauthentication and key exchange within WBANs. This framework focuses on newlineestablishing secure connections and trust relationships between WBAN, Local newlineProcessing Center (LPC) and Data Server (DS) ensuring data integrity and thus newlinepreventing unauthorized access. Additionally, it reduces end-to-end delay, newlineauthentication latency, throughput, communication cost, computational cost, newlineand storage overhead and enhances physical layer security. In the proposed SWBSN newlineframework with 50 sensor nodes, the Packet Delivery Ratio (PDR) is newlineimproved by 11.41% when compared to other existing protocols and newlineauthentication latency is reduced by 10.64%. newlineS-WBSN extends the security landscape by venturing into newlinecryptosystems. It tackles encryption and decryption processes, ensuring data newlineconfidentiality and integrity during transmission and storage. One Time Pad newline Quasi (OTP-Q) algorithm is designed for the proposed S-WBSN in order to newlineguarantee data freshness and integrity while reducing energy consumption in newlineWBANs. This method achieves a maximum security level of 88% for a known newlineplain text attack, 85% for a related key attack and 90% for a Brute Force attack. newlineThis framework obtains a minimum decryption time of 5005ms, 6285ms, newline7192ms, and 8292ms for transmitting 10 kb, 20 kb, 30 kb and 40 kb data newlinerespectively. newline