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Episode 83: Access Control Lists and Capability Tables
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Access control mechanisms determine who can access what—and how. In this episode, we compare two classic models: Access Control Lists (ACLs) and capability tables. ACLs associate permissions with objects, while capability tables associate them with subjects. We examine their strengths, limitations, and real-world implementations in file systems, network devices, and operating systems. You’ll also learn about how these mechanisms enforce discretionary and mandatory access controls, and how they can be extended using role or attribute-based models. Understanding these concepts is essential for effective system authorization design.
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