Working With SSL Installing a Signed SSL Certificate Provided by Authorities In a default IBM Aspera On Demand installation, Apachenginx generates and uses a self-signed SSL certificate. Install a signed certificate provided by authorities to secure your server. Generating and Installing a New Self-Signed SSL Certificate Generate a self-signed certificate if you don't plan on sending your certificate to be signed by a Certified Authority (CA), or if you want to test your SSL implementation while waiting for the CA to sign your certificate. Regenerating Self-Signed SSL Certificate (Apache)