How to enable https protocol for n8n started on premise?

I am running n8n locally to test it, but I have been struggling with setting the https protocol instead of http.

I added to the config in bashrc:

export N8N_PROTOCOL="https"export N8N_SSL_KEY=/path/to/keyfileexport N8N_SSL_CER=/path/to/certfile

When I start n8n, I get:

Editor is now accessible via:http://localhost:5678/

Unfortunately, this does not yield to any result. Can someone explain how to do it?