Energy Efficient Lightweight Mutual Authentication Protocol (REAP) for MBAN Based on Genus-2 Hyper-Elliptic Curve

Abstract

In the modern era, medical body area network (MBAN) emerges with the development of information and communication technology to improve the quality of healthcare services. As MBAN contains patient’s sensitive information and usually be transmitted via wireless channel, it is vulnerable to security threats and privacy attacks. To preserve privacy, it is important to provide authentication to prevent unauthorized access by intruders. Since MBAN consists of resource constraint devices to monitor physiological conditions, light-weight authentication protocol are in demand to reduce computational time and communication cost. Hence the paper proposes an eneRgy efficient, lightweight mutual authentication protocol for MBAN based on genus 2 hyper-elliptic curve cryptosystem, since it provides high security with smaller key size than Rivest–Shamir–Adleman and elliptic curve cryptosystem. The proposed authentication protocol is validated using the widely accepted AVISPA tool for its secure. In addition, BAN logic is used to analyse the formal security features and resistance to possible attacks are discussed informally.