Analysis and improvement of a secure key management protocol for e-health applications

摘要

A Body Sensor Network is a wireless network of wearable sensors, used primarily in healthcare to monitor the condition of the user. Such networks have high security and reliability requirements, while the devices collecting the data have very limited energy reserves and severe hardware constraints. Constructing security schemes for such networks can, therefore, be very challenging. In this paper, we analyse an existing Key Agreement Scheme. In our review, we discover some flaws in the security of the scheme. To improve the security and prevent malicious entities from gaining access or depleting the limited resources available, we design a new Key Agreement Scheme that is based on the previous scheme. The new scheme achieves a higher security level while maintaining comparable energy consumption. (C) 2018 Elsevier Ltd. All rights reserved.