A Security Model based Authorization Concept for OPC Unified Architecture
Kevin Wallis, Marc Merzinger, Christoph Reich, Christian Schindelhauer · 2018
Cybersecurity becomes ever more important since the industry is transforming towards an Industrial Internet of Things (IIoT). Essential parts of the whole security concept are securing the communication between clients and servers on different business layers, like plant floor network and enterprise network, separation of information model and authorization model and to keep the management of security policies as easy as possible. A widespread used service-oriented architecture for the IIoT is Open Platform Communications Unified Architecture (OPC UA) which supports confidentiality, integrity, application authentication, user authentication and user authorization.