After a private key has been compromised, an administrator realized that downloading a CRL once per day was not effective. The administrator wants to
immediately revoke certificates. Which of the following should the administrator investigate?
A.
CSR
B.
PKI
C.
IdP
D.
OCSP
Online Certificate Status Protocol
The Online Certificate Status Protocol is an Internet protocol used for obtaining the revocation status of an X.509 digital certificate. It is described in RFC 6960 and is on the Internet standards track. It was created as an alternative to certificate revocation lists, specifically addressing certain problems associated with using CRLs in a public key infrastructure.
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