A CA consists of a set of tools for generating and managing certificates and a database that contains all of the generated certificates. When setting up a Fuse Services Framework system, it is important to choose a suitable CA that is sufficiently secure for your requirements.
There are two types of CA you can use:
A commercial CA is a company that signs certificates for many systems.
A private CA is a trusted node that you set up and use to sign certificates for your system only.