Author

Eduard Zeller

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Jul 2026

Residual Observability and Attack Detectability in Encrypted OPC UA Traffic

OPC Unified Architecture (OPC UA) encryption conceals application-layer semantics and restricts intrusion detection to residual communication structure. Although machine learning-based intrusion detection systems (IDSs) can detect attacks in encrypted OPC UA traffic, the relationship between residual structural observa...

Son-Ha Song, Florian Foerster, Henry Beuster et al. · arXiv.org · 0 citations