SealedGRID: Secure and Interoperable Platform for Smart GRID Applications †

Recent advancements in information and communication technologies (ICT) have im‐ proved the power grid, leading to what is known as the smart grid, which, as part of a critical economic and social infrastructure, is vulnerable to security threats from the use of ICT and new emerging vulner‐ abilities and privacy issues. Access control is a fundamental element of a security infrastructure, and se‐ curity is based on the principles of less privilege, zero‐trust, and segregation of duties. This work ad‐ dresses how access control can be applied without disrupting the power grid’s functioning while also properly maintaining the security, scalability, and interoperability of the smart grid. The authentication in the platform presumes digital certificates using a web of trust. This paper presents the findings of the SealedGRID project, and the steps taken for implementing Attribute‐based access control policies specif‐ ically customized to the smart grid. The outcome is to develop a novel, hierarchical architecture com‐ posed of different licensing entities that manages access to resources within the network infrastructure. They are based on well‐drawn policy rules and the security side of these resources is placed through a context awareness module. Together with this technology, the IoT is used with Big Data (facilitating easy handling of large databases). Another goal of this paper is to present implementation and evaluations details of a secure and scalable security platform for the smart grid.