Remember OCSP
Full name: Online Certificate Status Protocol
Memory aid: Online Certificate Status is checked through a Protocol.
An OCSP response needs validation and freshness checks.
Study area: Cryptography & trust · Batch 3
Relevant study for: CompTIA Security+ SY0-701 · ISC2 CISSP 2024 outline · ISC2 SSCP · CompTIA SecurityX · Cybersecurity Architect SC-100 · ISC2 CCSP · Security, Compliance, and Identity Fundamentals SC-900
Practice with exam flashcards →Cybersecurity & Identity / Knowledge library
OCSP — Online Certificate Status Protocol
Queries certificate revocation status online.
Why learn OCSP — Online Certificate Status Protocol?
Queries certificate revocation status online.
Where it came from
An OCSP response needs validation and freshness checks.
- Memory aid (a learning cue, not the expansion): Online Certificate Status is checked through a Protocol.
Build your understanding
Work through these exercises in order. Try the task before opening a reference.
- Without looking, expand OCSP: Online Certificate Status Protocol.
- Recall this memory aid: Online Certificate Status is checked through a Protocol.
- Explain the practical use: Queries certificate revocation status online.
- Explain this distinction: An OCSP response needs validation and freshness checks.
- Identify OCSP in a device specification, architecture diagram, or system inventory.
Documentation and sources
- NIST cybersecurity glossary (csrc.nist.gov)