Common
OCSP stapling
Standard to check the revocation status of X.509
OCSP stapling
Online Certificate Status Protocol stapling (OCSP stapling), formally known as the TLS Certificate Status Request extension, is a standard for checking the revocation status of X.509 digital certificates. It allows the presenter of a certificate to bear the resource cost involved in providing Online Certificate Status Protocol (OCSP) responses. With OCSP stapling, the presenter appends ("staples") a time-stamped OCSP response signed by the certificate authority (CA) to the initial TLS handshake, eliminating the need for clients to contact the CA. OCSP stapling aims to improve both security and performance.
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