Certificate Chain
Ordered trust path from signer certificate to trusted root authority.
Definition
Ordered trust path from signer certificate to trusted root authority.
Why it matters
Broken chains cause signature validation failures.
Related PDFHQ workflows
Important for signed PDF troubleshooting and compliance checks.
Related Knowledge
Digital Signature
Cryptographic signature proving integrity and signer authenticity.
Public Key Infrastructure (PKI)
Framework for issuing, managing, and validating digital certificates.
OCSP
Online Certificate Status Protocol for real-time certificate revocation checks.
Certificate Revocation List (CRL)
Published list of revoked certificates that should no longer be trusted.
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.