NetBackup supports file-based certificates and Windows certificate store as external certificate sources
With NetBackup 8.2, you can use X.509 certificates that your trusted certificate authority (CA) has issued. NetBackup supports file-based certificates and Windows certificate store as external certificate sources.
In a clustered master server setup, a Windows certificate store as an external certificate source is not supported.
For more information, refer to the "About external CA support in NetBackup" chapter from the NetBackup Security and Encryption Guide