Secure and Efficient WBAN Authentication Protocols for Intra-BAN Tier

Telecare medical information system (TMIS) is a technology used in a wireless body area network (WBAN), which has a crucial role in healthcare services. TMIS uses wearable devices with sensors to collect patients' data and transmit the data to the controller node via a public channel. Then, the medical server obtains the data from the controller node and stores it in the database to be analyzed. Unfortunately, an attacker can try to perform attacks via a public channel. Thus, establishing a secure mutual authentication protocol is essential for secure data transfer. Several authentication schemes have been presented to achieve mutual authentication, but there are performance limitations and security problems. Therefore, this study aimed to propose two secure and efficient WBAN authentication protocols between sensors and a mobile device/controller: authentication protocol-I for emergency medical reports and authentication protocol-II for periodic medical reports. To analyze the proposed authentication protocols, we conducted an informal security analysis, implemented BAN logic analysis, validated our proposed authentication protocol using the AVISPA simulation tool, and conducted a performance analysis. Consequently, we showed that our proposed protocols satisfy all security requirements in this study, attain mutual authentication, resist active and passive attacks, and have suitable computation and communication costs for a WBAN.