3 papers
cs.CR2026
Residual Observability and Attack Detectability in Encrypted OPC UA Traffic
Song Son Ha, Florian Foerster, Henry Beuster +3
OPC Unified Architecture (OPC UA) encryption conceals application-layer semantics and restricts intrusion detection to residual communication structure. Although machine learning-b…
eess.SY2026
Converging Safety and Security: IO-Link Wireless and OPC UA over 5G under prEN 50742
Henry Beuster, Thomas Robert Doebbert, Gerd Scholl
The integration of wireless communication technologies in industrial automation offers greater flexibility, but also exposes safety systems to a broader threat vector. Emerging reg…
cs.CR2026
Impact of Benign Connectivity Variations on Intrusion Detection for Encrypted OPC UA Traffic in Industrial Private 5G Networks
Song Son Ha, Florian Foerster, Henry Beuster +3
Machine learning (ML)-based intrusion detection systems (IDSs) are increasingly used to monitor encrypted industrial communication. However, their behavior under realistic private…