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Key Hierarchy

Key Hierarchy: A system where multiple cryptographic keys are arranged in a hierarchical structure, typically with a master key at the top, which is used to derive lower-level keys.

Analogy: A master key that can open a set of locked boxes, each containing keys to other boxes.

Why It Matters: Key hierarchy is essential for managing encryption keys effectively, allowing for key revocation, separation of duties, and easier key management in complex systems.

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