A Security, Privacy and trust architecture for Wireless Sensor Networks

In this paper the authors propose a cross-layer security management plane, with a main actor security, privacy and trust manager, which addresses: a) the defined requirements taking into account the diverse application spaces and their scenarios, b) the diverse node capabilities which is a characteristic for wireless sensor networks architecture and c) the change of the context and preferences of the user in the scenarios where end user is heavily involved. Being context aware the framework assures secure interactions, providing adaptability and flexibility. The solution is presented along with a medical care scenario example, to better explain the functionality of the blocks forming the simplified architecture and their interactions, which are also depicted through several communication diagrams.