Security

Monitor Petri Nets for Security Monitoring

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Executive Summary

In the authors' integrated model-based development process for security monitors, they use Live Sequence Charts (LSCs) as expressive, formal specification. Generating target specific monitors from these, requires a complex interpretation of their syntax and semantics. In this paper, they propose a Petri Net dialect as an intermediate language for monitor generation - named Monitor Petri Nets (MPNs). It is based on standard Petri Nets that are syntactically and semantically extended to suit the needs of monitoring. With their MPNs, they are able to represent use and misuse cases described by LSCs in a format that is easy to interpret. MPNs provide the basis for the generation of SW/HW security monitors or can alternatively be interpreted by a generic monitor.

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