On Tue, May 24, 2016 at 05:08:38PM +0000, Salz, Rich wrote: > > 2) Are the same encryption keys used every time with ADH? > > Yes. That's the other BIG reason :) You really want ephemeral, and therefore ECDH NO, Rich is making a mistake, ADH is ephemeral of necessity, since without long-term keys in certificates it is impossible to use long-term keys whose disclosure might later compromise confidentiality. > > 3) Is it possible to use ephemeral DH without using certificates? I was not > > able to get that to work. > > Yes. This is "null" auth. Essentially: aNULL == (ADH || AECDH). -- Viktor.