Cybersecurity glossary

Cybersecurity definition

What is Envelope Encryption?

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Definition

A key-management pattern where data is encrypted with a fast, disposable data key, and that data key is itself encrypted with a more tightly controlled master key, so rotating the master key doesn't require re-encrypting all the underlying data.

Where Envelope Encryption fits in the security landscape

These beginner lessons use this term while explaining the surrounding security control.

Related cybersecurity terms

HSMHardware Security ModuleA dedicated, tamper-resistant hardware device that generates, stores, and uses cryptographic keys, so the keys themselves never have to leave secure hardware even when software using them is compromised.

Use this definition as a baseline when reading category and product pages. Implementations, editions, and vendor terminology can differ; current product claims should be checked against the source-linked profile.

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