A Necessary Condition for Industrial Internet of Things Sustainability

In the paper cybersecurity of Industrial Internet of Things (IIoT) is compared with SCADA-based Industrial Control Systems (ICS), that leverage Purdue Enterprise Reference Architecture (PERA) 5-leveled model for network segmentation. The main difference of SCADA-based ICS and IIoT systems is an openness of control, process and physical layers – in SCADA-based ICS every “thing” secured physically, that is called safety, while in IIoT-based systems both safety and security – that is called cybersecurity – must be provided. Then authors provide a typical IIoT architecture, where communication between nodes of Internet of Things (IoT) field is coming through an Zero-Trusted environment like the Internet is. This architecture needs new approache or approaches for securing communications. The paper is aimed to show that anonymity systems and anonymity theory could help with this cybersecurity challenge. Based on the anonymity degree measuring a path sustainability entropy mearing between two arbitrary nodes is proposed. For providing cybersecurity sustainability of production workflows on such architecture a necessary condition is described in a theorem. In the end of the paper this necessity criteria theorem is proven.