On 30/08/2016 10:16, Daniel Kahn Gillmor wrote: > Is the goal to allow the use of specific secret keys? if so, maybe what > you really want is a forwarded gpg-agent or something?
Yes, that's what I am trying to do, but I can't find any way that fits my needs (no ssh, and an X11 dialog to ask for confirmation) The keywords “forwarded gpg-agent” brings more relevant results in my search engine, I'll look at them, thanks.

