# Default elements for certificates

There are several predefined elements for working with certificates.

The Management Server includes an Internal RSA Certificate Authority element. By default, Internal RSA Certificate Authority issues all certificates that SMC servers and NGFW Engines use for communication with other SMC components.

Predefined Trusted Certificate Authority elements represent the signing certificates of major certificate authorities. Default Trusted Certificate Authority elements are automatically added from dynamic update packages and cannot be edited or deleted. You can also create your own Trusted Certificate Authority elements to represent other certificate authorities that the SMC servers and NGFW Engines trust.