User Centric Trust-Based Access Control Management for Ubiquitous Computing Environments

Given the diversity of information and services that an individual will want to offer and/or share in a ubiquitous computing environment, it is critical that the individual is provided with mechanisms to manage access and usage to their resources. Mirroring real life, a natural concept for people to grasp when assigning ability to access or use resources is one of "trustworthiness". In previous work, it has been shown that trust is a multi-faceted and personal concept, and so this needs to be catered for in any trust management interactions an individual may have with the ubiquitous environment. This paper describes our recent research in examining such user interactions through the design, implementation and evaluation of an online social network application, as this application raises the kind of issues that will be faced by most individuals in ubiquitous computing environments.