Background: It is paramount to secure the healthcare system from unauthorized users and security attacks through appropriate security mechanisms as a break in the communication process and which leads to leaked or blurred messages, which is totally unacceptable. Moreover, mutual authentication is a core requirement for privacy protection as it is paramount to control who is accessing the sensed data and whether they are authenticated or not. In addition to this, energy efficiency is a major issue to be discussed.
Objective: After examination of the present related schemes, we proposed a novel Secured, Anonymity Preserving and Lightweight Mutual Authentication and Key Agreement Scheme (SALMAKA) for two-hop WBAN topology; where the scheme mutually authenticates the sensing nodes with the controller node in an anonymous, energy-efficient manner and establishes session key securely.
Methods: To corroborate the accuracy of the proposed scheme, Burrows-Abadi-Needham (BAN) logic and Automated Validation of Internet Security Protocols and Applications (AVISPA) simulator are used. Apart from this, informal security evaluation is also performed in detail.
Results: To exhibit the practical application and performance of the proposed scheme, it is compared with the existing related schemes and the results reveal that the proposed scheme reduces energy consumption, processing cost and processing time significantly.
Conclusion: A Secured, Anonymity Preserving and Lightweight Mutual Authentication and Key Agreement Scheme (SALMAKA) for two-hop WBAN topology is propounded.