Certificate Revocation
| Certificate Revocation | |
|---|---|
| Mechanisms for ending a certificate’s trusted status before its normal expiration date. | |
| Area | Physical AI and robotics |
| Applications | Research, engineering and systems operation |
Certificate Revocation mechanisms for ending a certificate’s trusted status before its normal expiration date. [1]
Why revocation exists
A certificate may need to be withdrawn when its private key is exposed, an entity changes ownership or its authorization should end. Expiration alone may not respond quickly enough to an active incident.
Checking status
Public-key infrastructure can publish certificate revocation lists or use status-checking protocols. Whether a relying party checks these mechanisms, and how it behaves when a responder is unavailable, matters operationally. [2]
Robotic environments
Industrial and mobile devices can be intermittently connected. Designers need to understand caching, recovery procedures and the security consequences of accepting stale status information.
Related controls
Revocation is only one component of credential security. Key protection, authentication policies, asset inventory and incident response remain necessary.
See also
References
- ↑ “RFC 5280 — Internet X.509 Public Key Infrastructure certificate and CRL profile”. IETF / RFC Editor. Retrieved 2026-10-08.
- ↑ “Guide to Operational Technology (OT) Security, SP 800-82 Rev. 3”. NIST. Retrieved 2026-10-08.