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Training Camp • Cybersecurity Glossary
OCSP (Online Certificate Status Protocol) is a protocol used to check the validity of a digital certificate in real-time by sending a request to the issuing certificate authority.
OCSP Definition: OCSP (Online Certificate Status Protocol) is a protocol used to check the validity of a digital certificate in real-time by sending a request to the issuing certificate authority.
OCSP, or Online Certificate Status Protocol, is a protocol used to check the validity and revocation status of X.509 digital certificates. It allows a client to query a Certificate Authority's (CA) OCSP responder to confirm if a certificate has been revoked or is still valid. This protocol helps ensure the security of communications by allowing real-time validation of digital certificates.
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