SecKey support in TimedCertificateReloader

[czechboy0]

It'd be great to add support for reloading SecKey-based keys in TimedCertificateReloader.

[Lukasa]

Can you clarify what you expect this to do?

[czechboy0]

Great question - I suspect I got confused here for a second. I guess with SecKey refs, I should just bypass the cert reloader completely and pass them to TLSConfiguration, and since it's a ref, it'll always use the up-to-date value from the keychain?

[Lukasa]

I'm actually not sure whether it will, but the question of how the SecKeyRef is produced is not something this library can help with. The question is, is anything being loaded from disk at all, or does this library just become a big wrapper around a timer?