A trust management model for Body Sensor Networks

Body Sensor Networks (BSNs) are used for diverse applications ranging from monitoring for medical purposes, sport coaching to computer gaming. A foreseen usage scenario for a BSN is the installation of third-party monitoring applications. Existing applications can also be extended by downloading and installing new components dynamically. Dependability and security properties must be preserved under these changes while the user of the BSN must have a transparent view on data usage and installed software. To that end we propose an efficient trust management model and we investigate policies and mechanisms to express and control the data usage.