Ocsp Stapling (CloudMonk.io)

OCSP Stapling

The Online Certificate Status Protocol (OCSP) stapling, formally known as the TLS Certificate Status Request extension, is a Internet standard for checking the revocation status of X.509 digital certificates.

OCSP stapling, or Online Certificate Status Protocol stapling, is a technique used to enhance the performance and security of SSL/TLS connections by reducing the latency associated with certificate validation. With OCSP stapling, the web server proactively queries the certificate authority's OCSP responder for the validity status of its SSL/TLS certificate and includes the response, or "staple," along with the server's SSL/TLS certificate during the SSL handshake process. This allows clients to verify the validity of the server's certificate without needing to independently contact the certificate authority's OCSP responder, thereby reducing latency and improving connection speed. OCSP stapling improves security by providing clients with up-to-date certificate validation information, reducing the risk of man-in-the-middle attacks and certificate revocation issues. It is supported by modern web servers and browsers and is widely used to enhance the security and performance of SSL/TLS connections on the internet. [https://en.wikipedia.org/wiki/OCSP_stapling]