Obtain the certificate for the certification authority and add it to the key database. When using a SAF key ring, the CA certificate must be TRUSTed. If using RACF® key rings and the DIGTCERT and DIGTRING classes are RACLIST'ed, issue the SETROPTS RACLIST (DIGTCERT, DIGTRING) REFRESH command to refresh the profiles to ensure that the latest changes are available.