We study information flow in a model for data-parallel computing. We show how an extant notion of virtual time can help guarantee information-flow properties. For this purpose, we introduce functions that express dependencies between inputs and outputs at each node in a dataflow graph. Each node may operate over a distinct set of virtual times—so, from a security perspective, it may have its own classification scheme. A coherence criterion ensures that those local dependencies yield global properties.
CITATION STYLE
Abadi, M., & Isard, M. (2015). On the flow of data, information, and time. Lecture Notes in Computer Science (Including Subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), 9036, 73–92. https://doi.org/10.1007/978-3-662-46666-7_5
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