You can use the certificate synchronization tool of the BlackBerry® Desktop Manager to download or import certificates to your computer, synchronize certificates between your BlackBerry device and your computer, and verify the authenticity and status of certificates. The certificate synchronization tool is designed to access certificate status information and certificate server information by requesting the information from certificate authority servers and LDAP, OCSP, and CRL certificate servers, or by synchronizing the information between your computer and your device over a USB connection.