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Elton needs his application to perform a real-time lookup of a digital certificate's status. Which technology would he use?

1) Certificate Revocation List (CRL)
2) Real-Time CA Verification (RTCAV)
3) Online Certificate Status Protocol (OCSP)
4) Staple

1 Answer

3 votes

Final answer:

Elton should use the Online Certificate Status Protocol (OCSP) for real-time lookup of a digital certificate's status, as it provides prompt and efficient certificate verification.

Step-by-step explanation:

If Elton needs his application to perform a real-time lookup of a digital certificate's status, he would use the Online Certificate Status Protocol (OCSP). OCSP allows applications to query a certificate authority (CA) in real time to get the revocation status of a specific digital certificate without having to download a full Certificate Revocation List (CRL). OCSP is a more efficient alternative, particularly for systems where timely and frequent status checks are necessary.

Elton would use the Online Certificate Status Protocol (OCSP) to perform a real-time lookup of a digital certificate's status.

OCSP is a protocol that allows applications to determine if a certificate has been revoked by checking its status with the Certificate Authority (CA) in real-time.

Using OCSP, Elton's application can check the validity of digital certificates without relying on outdated Certificate Revocation Lists (CRLs) which may not be up-to-date.

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