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rbac

AI security interview questions tagged rbac, across every topic.

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Concepts behind "rbac"

Explanations of the mechanisms these questions rely on.

Foundational
Identity & Access
Access-Control Models: RBAC, ABAC and ReBAC in DepthEvery authorization model answers one question: may this subject perform this action on this resource, in this context? RBAC answers with roles and is easy to review but explodes when roles start encoding objects or context. ABAC evaluates attributes and is expressive but hard to audit. ReBAC follows relationships such as owner, member and parent folder, as Google's Zanzibar does at millions of checks per second. Real systems combine them, and the hard parts are deny semantics, list filtering, stale permissions and agents acting for users.
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