Which fields are required within digital certificates in a public key infrastructure?

Type your answer here... Serial Number and Issuer

Answer Explanation: Digital certificates in a PKI have nine required fields, two of which are the Serial Number and Issuer fields. The Serial Number is an identification number for the certificate. The name of the organization that issued the certificate is required in the Issuer field. Other required fields include the following: Version, Algorithm ID, Validity, Subject, Subject Public Key Info, the digital signature of its issuer, and an algorithm identifier.