You can implement the same concepts in anything that uses OpenPGP authentication, without using any Monkeysphere software: in effect, a per-user pair of (trusted keyring and a set of authorized user IDs). Everything is localized solely to you unless you choose it not to be.
Copyright © 2017, Eklektix, Inc.
Comments and public postings are copyrighted by their creators.
Linux is a registered trademark of Linus Torvalds