The UEM server must sign policies and policy updates using a private key associated with [selection: an X509 certificate, a public key provisioned to the agent trusted by the agent] for policy verification.

The content of the drawer really is up to you. It could have form fields, definition lists, text lists, labels, charts, progress bars, etc. Spacing recommendation is 24px margins. You can put tabs in here, and can also make the drawer scrollable.