3.7.3 Secure key storage
Key management policies and procedures address secure storage of cryptographic keys.
5
artefacts
2
held by a system
1
at each review
moderate
to go live
Key management / PKI
where the evidence lives
teal = a system already holds it · olive = produced at each review
system holds itEvidence a system already holds
- HSM or vault configuration · Key management / PKI
- Audit logs · SIEM / log platform
periodic reviewEvidence produced at each review
- Access control records · Identity provider / directory
governing documentDocuments that govern the control
- Storage method documentation per key · Document repository
- Wrapping key inventory · Policy repository / GRC workspace
First move
Start with the 2 of 5 artefacts that already live in a system (Key management / PKI); keep the periodic reviews but log each one as a dated record with a named reviewer.
Common gaps auditors find
- Keys in config files
- Plain text in repositories
- No HSM where required
Do this for your whole sheet
Paste the rows you run your controls from and get this mapping for every control at once, with the periodic-review ones flagged and a first move per row. No account for the first run.
Build my evidence sheet3.7.2 Secure key distribution · 3.7.4 Cryptoperiod and key changes