Security Analysis for Distributed IoT-Based Industrial Automation

Internet of Things (IoT) technologies enable development reconfigurable manufacturing systems—a new generation modularized industrial equipment suitable for highly customized manufacturing. Sequential control in these systems is largely based on discrete events, whereas their formal execution semantics specified as interpreted Petri nets (CIPN). Despite industry-wide use programming languages the CIPN formalism, verification such applications presence adversarial activity not supported. Consequently, this article, we introduce security-aware modeling and techniques CIPN-based sequential applications. Specifically, show how models networked IoT controllers can be transformed into time net (TPN)-based composed with plant channel order to system-level safety properties network-based attacks. Additionally, realistic channel-specific attack that capture behavior using nondeterminism. Moreover, results utilized security patches facilitate design detectors improve system resiliency satisfaction critical properties. Finally, evaluate our framework an case study. Note Practitioners—Our main goal provide guarantees distributed controllers. target smart automation geared toward Industrial are typically programed C/C++ running originally designed in, example, GRAFCET (IEC 60848)/SFC 61131-3) languages. Since existing tools do support relevant properties, transceiver communication developed controller models. Then, used verify including liveness To end-to-end analysis well patching, deploy firmware updates during stage when executable code (e.g., C/C++) generated GRAFCET/SFC We also improved safety/liveness verified after corresponding deployed. applicability a pneumatic manipulator.