cid d83ea7e47bedaf90244a01553323d41cb367fa63a7c2ac8e58dfdf881306e850 · original · open access · via wikipedia
Title: Online Certificate Status Protocol Authors: Venue: Wikipedia Year: unknown Canonical: wiki:online-certificate-status-protocol URL: https://en.wikipedia.org/wiki/Online_Certificate_Status_Protocol Collector: wikipedia OA: true ABSTRACT The Online Certificate Status Protocol (OCSP) is an Internet protocol used for obtaining the revocation status of an X.509 digital certificate. It was created as an alternative to certificate revocation lists (CRL), specifically addressing certain problems associated with using CRLs in a public key infrastructure (PKI). Messages communicated via OCSP are encoded in ASN.1 and are usually communicated over HTTP. The "request/response" nature of these messages leads to OCSP servers being termed OCSP responders.