• A standard for checking the revocation status of X.509 digital certificates. OCSP stapling allows the presenter of a certificate to bear the resource cost involved in providing Online Certificate Status Protocol (OCSP) responses by appending (“stapling”) a time-stamped OCSP response signed by the CA to the initial TLS handshake, eliminating the need for clients to contact the CA, with the aim of improving both security and performance. ← Wikipedia

1. Related terms: Online Certificate Status Protocol, Certificate revocation list, Certificate authority, X.509
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