Abstract
We consider opacity as a property of the local states of the secure (or high-level) part of the system, based on the observation of the local states of a low-level part of the system as well as actions. We propose a Petri net modelling technique which allows one to specify different information flow properties, using suitably defined observations of system behaviour. We then discuss expressiveness of the resulting framework and the decidability of the associated verification problems.
Publisher Statement: This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited.
Publisher Statement: This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited.
Original language | English |
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Pages (from-to) | 101-115 |
Number of pages | 15 |
Journal | Electronic Notes in Theoretical Computer Science |
Volume | 121 |
DOIs | |
Publication status | Published - 10 Feb 2005 |
Keywords
- opacity
- non-deducibility
- Petri nets
- observable behaviour