# key management

CEFR C1 · Compound

Source: https://englishreference.com/word/key-management
Updated: 2026-07-22

## Definition

the way a company or person looks after physical keys or digital passwords. It involves making sure only the right people can use them and keeping them safe from loss or theft.

For teachers: the systematic management of cryptographic keys in a cryptosystem, including their generation, exchange, storage, use, and replacement. In a physical context, it refers to the administrative control of mechanical keys and locks within a facility.

## Examples

- Good key management is essential for keeping our office secure.
- The IT department updated their key management policy to ensure that all digital certificates are rotated every ninety days.
- Robust key management protocols are the cornerstone of modern cybersecurity, as even the strongest encryption algorithms are useless if the underlying keys are compromised through poor storage or handling.

## Usage notes

- Often functions as a compound noun in technical or administrative contexts.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.