Who is Diffie Hellman
What is a Diffie Hellman Key?
DH Key exchange
You should also specify your own Diffie-Hellman (DH) key exchange parameters. What you should know about it is that it is a protocol which allows two parties to negotiate a secret without ever putting that secret on the wire. It is pretty impressive piece of “artwork”.
Tell nginx to use DH params:
You can use
openssl dhparam to generate parameters:
Generate DH parameters with at least 2048 bits. If you use 4096 bits for your TLS certificate you should match it in DH parameters too.