Installation prerequisites for encryption security
Encrypted backups require the NetBackup encryption software, which is included in NetBackup server and client installations. To use encryption, you must have a valid license. Refer to the NetBackup Administrator's Guide, Volume I for details on how to administer NetBackup licenses.
NetBackup Administrator's Guide, Volume I
For a list of the platforms on which you can configure NetBackup Encryption, see the NetBackup Release Notes.