fixes #3941

[stew]

provide a way to use tls certs for client auth

Overview

Provide a way to do TLS client auth so that users can use a certificate to prove their identity to a server.

Test coverage

nope, maybe later, right not trying to rush this into @alvaroc1 's hands to test

[aryairani]

@stew I'm assuming you tested by hand? Or is @alvaroc1 testing first here before we merge?

[alvaroc1]

@stew I'm assuming you tested by hand? Or is @alvaroc1 testing first here before we merge?

I have not tested, no... but looking forward to it being released :D