CUPS - how to enable HTTPS?

Hello,

I found some documentation on how to enable HTTPS on RHL, but it's not all quite clear.

https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/deploying_different_types_of_servers/configuring-printing_deploying-different-types-of-servers#installing-certificates-for-print-server_configuring-printing

Section - 16.9. Installing certificates for a print server

All it says is to set the following directive in the /etc/cups/cupsd.conf file to:

Encryption Required

Restart the cups service:

$ sudo systemctl restart cups

How about the certificate files I have in /etc/cups/ssl?

[root@accordwell ssl]# ls -ltr
total 8
-rw-------. 1 root lp 1704 Dec 12 2019 server.key
-rw-------. 1 root lp 1407 Dec 12 2019 server.crt

Will the CUPS WEB UI pick these up? Or do I need to somehow re-generate them?

Regards
Richard