Exam CAS-004 topic 1 question 464 discussion

While the CA is responsible for issuing the certificates, it relies on the RA (if one is used) to perform the identity validation. If the RA performs its duties correctly, any failed identity validation would be handled at the RA level, and the CA would not issue the certificate.

o Registration Authority (RA) is the entity responsible for collecting initial information from the certificate applicant, verifying documents and performing preliminary identity checks. If the CA denies certificate issuance due to failed subject identity validation, it means the RA did not successfully validate the identity of the applicant during the initial registration process. The CA relies on the information provided by the RA to make its final decision. o CA: The Certificate Authority (CA) is responsible for issuing certificates based on the information provided by the RA. While the CA may perform some additional checks, the primary identity validation occurs at the RA stage. The CA reviews the information submitted by the RA and if the identity is not validated there, the CA will deny the certificate request.

The denial of certificate issuance due to failed subject identity validation would have occurred at: C. CA (Certificate Authority). The CA is responsible for validating the identity of the subject requesting the certificate. If the validation fails, the CA will deny the issuance of the certificate. The RA (Registration Authority) may perform initial validation, but the final decision on issuing the certificate lies with the CA.

Registration Authority (RA) The Registration Authority, or RA, is responsible for verifying the identity of entities applying for a digital certificate. This can include checking proof of identity or other credentials. The RA doesn’t issue certificates itself but serves as a trusted agent of the CA.

The denial of certificate issuance due to failed subject identity validation would occur at the CA within the PKI enrollment process. This step involves the CA verifying the identity information provided by the RA and ensuring it meets the criteria for certificate issuance according to the CA's policies and procedures.