Model checking usage policies†
Model checking usage policies†
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模型检查使用政策†
DOI:
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发表时间:
2009
影响因子:
0.5
通讯作者:
R. Zunino
中科院分区:
文献类型:
--
作者:
Massimo Bartoletti;P. Degano;G. Ferrari;R. Zunino
We study usage automata, a formal model for specifying policies on the usage of resources. Usage automata extend finite state automata with some additional features, parameters and guards, that improve their expressivity. We show that usage automata are expressive enough to model policies of real-world applications. We discuss their expressive power, and we prove that the problem of telling whether a computation complies with a usage policy is decidable. The main contribution of this paper is a model checking technique for usage automata. The model is that of usages, i.e. basic processes that describe the possible patterns of resource access and creation. In spite of the model having infinite states, because of recursion and resource creation, we devise a polynomial-time model checking technique for deciding when a usage complies with a usage policy.