Feature Article: Smart Healthcare Security Securing Fuzzy Vault Enabled Authentication in Body Area Networks-Based Smart Healthcare Jack Hodgkiss and Soufiene Djahel Manchester Metropolitan University Abstract-The emergence of body area networks (BANs) has paved the way for real-time sensing of human biometrics in addition to remote control of smart wireless medical devices, which in turn are beginning to revolutionize the smart healthcare industry. However, due to their limited power and computational capabilities, they are vulnerable to a myriad of security attacks. To secure BAN sensors against these threats processorintensive cryptographic techniques need to be avoided as they are not suitable in this context. This article focuses on authentication service for BAN sensors and proposes an original scheme named " RAFV: Rotational Assisted Fuzzy Vaults " to harden the security of any authentication solution using the fuzzy vault construction approach. The evaluation results have shown that RAFV can successfully conceal the secret of the vault even if the locking elements are known to the adversary. Also, RAFV may improve upon communication overhead by enabling a reduction in the size of the vault without compromising its security. It has achieved all of this while remaining competitive with regards to additional computational overhead. Digital Object Identifier 10.1109/MCE.2020.2991387 Date ofpublication 7May 2020; date ofcurrent version 6 December 2021. & BODY AREA NETWORKS (BANs) are expected to play a major role in enabling " smart healthcare, " which is the inclusion of technology to help sense, evaluate and react to the environment and patients to deliver high-quality care. BAN sensors are a type of network devices small 6 2162-2248 ß 2020 IEEE Published by the IEEE Consumer Technology Society IEEE Consumer Electronics Magazine