Gustav Keppler

The paper proposes RTS-ABAC, a novel real-time server-aided Attribute-Based Access Control mechanism designed to secure time-critical communications in substation automation systems, achieving low-latency protection even for retrofitting existing infrastructure.

The paper introduces CritBench, a novel framework to evaluate LLM cybersecurity capabilities specifically within IEC 61850 Digital Substation Operational Technology (OT) environments, finding that while models understand the standards, they struggle with dynamic, stateful system manipulation.

The paper introduces CyberCertBench, a new benchmark suite for evaluating LLMs against industry cybersecurity certifications, finding that while frontier models perform well on general knowledge, their accuracy drops when specialized or vendor-specific standards are required.