Selection of FDI-Tolerant Time-Sensitive Networking (TSN)-Based Architecture for Preserving Determinism of Safety-Critical Applications

The communication in safety-critical networked systems, disregarding usage areas, has to meet stringent reliability and timeliness requirements (colloquially known as deterministic requirements). The fake news can affect even the safety-critical networked systems; the networked systems used in safety-critical areas are usually dynamic. The on-fly addition of components and traffic increases the vulnerability of the networked system exposing it to cyber-attacks. Example of these attacks are: denial of service, Fake-Data Injection (FDI) and replay.The goal of this paper is to determine an FDI-tolerant communication architecture. For this work, Time-Sensitive Networking (TSN) is chosen as communication protocol. TSN is a set of IEEE 802.1 standards and amendments that extend Ethernet for providing deterministic requirements on most of the safety-critical areas. The general applicability of TSN means that multiple mechanisms must be combined in order to address the requirements of an area. Therefore, the determination of an FDI-tolerant TSN-based architecture means to select the sub-set of TSN mechanisms that preserves the determinism even in the presence of faulty traffic. For evaluating the deterministic requirements on different TSN-based architectures, it is used the network simulation tool OM-NeT++ adapted for TSN.