OCSP
Online Certificate Status Protocol for real-time certificate revocation checks.
Definition
Online Certificate Status Protocol for real-time certificate revocation checks.
Why it matters
Signature validation quality depends on up-to-date certificate status information.
Related PDFHQ workflows
Relevant for digital signatures, long-term validation, and trust diagnostics.
Related Knowledge
Certificate Revocation List (CRL)
Published list of revoked certificates that should no longer be trusted.
Certificate Chain
Ordered trust path from signer certificate to trusted root authority.
Long-Term Validation (LTV)
Signature validation strategy preserving trust evidence over long periods.
X.509 Certificate
Standard certificate format used in most PKI signature ecosystems.