Location of key and cert files for HTTPS connections



I am attempting to create a secure https Node server on my site, and in order to do that I need to pass in the .crt and .key files for my (sub)domain when creating the server. I have Node configured through Passenger.

Do I have access to these files anywhere? I can’t find them on my VPS at all. By chance does Passenger take care of this magically somehow? I haven’t been able to find any documentation indicating such.

Thank you in advance for any help you can offer!