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arXiv 1401.4492cs.LO
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超性质的时态逻辑

Temporal Logics for Hyperproperties

Michael R. Clarkson, Bernd Finkbeiner, Masoud Koleini, Kristopher K. Micinski, Markus N. Rabe, César Sánchez

摘要:

提出了两种新的超性质验证逻辑。超属性将安全策略(如不干涉)表征为计算路径集的属性。标准的时态逻辑,如LTL、CTL和CTL*,一次只能引用一条路径,因此不能表达许多感兴趣的超性质。这里提出的逻辑,HyperLTL和HyperCTL*,在多个路径上向LTL和CTL* 添加显式和同时量化。这种量化使得能够表达超性质。给出了该逻辑的模型检验算法。针对HyperLTL的一个片段,实现了一个原型模型检测器。

英文摘要:

Two new logics for verification of hyperproperties are proposed. Hyperproperties characterize security policies, such as noninterference, as a property of sets of computation paths. Standard temporal logics such as LTL, CTL, and CTL* can refer only to a single path at a time, hence cannot express many hyperproperties of interest. The logics proposed here, HyperLTL and HyperCTL*, add explicit and simultaneous quantification over multiple paths to LTL and to CTL*. This kind of quantification enables expression of hyperproperties. A model checking algorithm for the proposed logics is given. For a fragment of HyperLTL, a prototype model checker has been implemented.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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