Annex A 8.24
Use of cryptography
Rules for effective use of cryptography, including key management, are defined and implemented.
What an assessor looks for
Key management is where this control is won or lost. Show generation, storage, rotation, and what happens if a key is compromised.
Where it usually fails
Encryption is deployed correctly and keys have never been rotated, with no documented process for doing so.
Classification
- Theme
- A.8 Technological
- Control type
- Preventive
- Security properties
- Confidentiality, Integrity
- Cybersecurity concepts
- Protect
- ISO 27001:2013 equivalent
- 10.1.1, 10.1.2
Control number and title are identifiers used as references. The classification above is our own analysis, aligned to the shape of the ISO 27002 attribute model rather than reproduced from it, and no text from the standard appears on this page. Last reviewed 2026-08-03.
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