SenShaMart: A Trusted loT Marketplace for Sensor Sharing

This paper proposes a novel Trusted IoT Marketplace, which we refer to as SenShaMart, that permits different IoT applications to share (i.e., provide, discover, (re)use and pay for) IoT sensors. SenShaMart promotes both sharing of existing sensors and deployment of new sensors via a revenue generating scheme for IoT sensor provider applications. Unlike existing sensor discovery and integration solutions that are currently owned/controlled by a specific IoT platforms or sensor provider, SenShaMart has been specifically designed to be a trustworthy third party that manages all the important information needed for sensor discovery, integration, use and payment via a specialized blockchain (which we refer as SenShaMart blockchain). This solution ensures that the IoT application that use SenShaMart to share IoT sensors maintain their privacy and ensures first-come first-served access to any available sensor. The paper presents the key innovations in devising the SenShaMart and outlines the design of its main components.