MARTEN: Measurement-Based Trustcheck for Constrained Networks

Abstract

Due to the digitization more and more devices get connected and are also integrated into our private space. In SmartHomes/Buildings these devices are constrained and, thus, limited with computational capacities but are requested to measure different values (e.g., temperature or humidity) periodically and may trigger others (e.g., ventilation or shading). Due to their deployments and resources security support for communication is very limited calling for trustchecks in gen-eral. Thus, a Measurement-Based Trustcheck for Constrained Networks (MARTEN) was designed and developed in order to include a trustcheck on received measurements of a single node. With this solution trust can be more individually assigned and allows more fine-grained distinction compared to known node- or cluster-based approaches. Thus, MARTEN differs from existing trust- check approaches based on the reputation of reporting nodes or similar. It was evaluated in a SmartHome/Building scenario proving correct labelling of measurements and handling by the network owner (NO). Currently, the integration in an air mobility application is ongoing. We believe MARTEN is feasible here as well as it was designed in a modular structure and, thus, is adaptable with less overhead. Due to MARTEN's automation process the interaction with the NO is decreased to a minimum.