Enforcing accountability in Smart built-in IoT environment using MUD

Internet-of-things (IoT) enabled smart build environments are an accurate representation of complex and dynamical systems. The diversity and heterogeneity of components in the IoT, not only make the ecosystem extremely difficult to analyse and validate but also make it hard to build both secure and accountable. To address these issues, the Internet Engineering Task Force (IETF) has taken the initiative to bring a standard (RFC8520), which will encourage manufacturers of IoT devices to provide a Manufacturer Usage Description (MUD) for their IoT devices. In this paper, we present a deployment scenario of MUDs in domestic settings and proposing an MLogger application which runs on a local router. MLogger enforces user-defined traffic filtering policies along with the MUD policies for each IoT devices. Our solution not only aims to provide a better fine-grained traffic filtering locally but also enables a user-defined control and accountability at the edge of the network.