Lianshan Sun

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Provenance is meta-data about how data items become what they are. A variety of provenance-aware access control models and policy languages have been recently discussed in the literature. However, the issue of eliciting access control requirements related to provenance and of elaborating them as provenance-aware access control policies (ACPs) has received(More)
Provenance is a directed graph that explains how a data item became what it is. It is recently proposed to use provenance to enable the so-called provenance-based access control (PBAC) in provenance-aware systems. Evaluating a PBAC policy usually involves one or more queries against provenance store. However, directly reusing existing prove-nance query(More)
This article has been accepted for publication in a future issue of this journal, but has not been fully edited. Content may change prior to final publication. Abstract—Provenance is a directed graph that captures historical information about data items in Provenance-Aware Systems (PAS). A variety of access control models and policy languages specific to(More)
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