Safety Analysis in the NGAC Model

Brian Tan; Ewan S. D. Davies; Indrakshi Ray; Mahmoud A. Abdelgawad

doi:10.1145/3734436.3734444

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arXiv · 2505.06406

Safety Analysis in the NGAC Model

Brian Tan·Ewan S. D. Davies·Indrakshi Ray·Mahmoud A. Abdelgawad

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Abstract

We study the safety problem for the next-generation access control (NGAC) model. We show that under mild assumptions it is coNP-complete, and under further realistic assumptions we give an algorithm for the safety problem that significantly outperforms naive brute force search. We also show that real-world examples of mutually exclusive attributes lead to nearly worst-case behavior of our algorithm.

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Brian Tan, Ewan S. D. Davies, Indrakshi Ray, Mahmoud A. Abdelgawad. 2025-05-09. Safety Analysis in the NGAC Model. https://doi.org/10.1145/3734436.3734444

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