[Standards] Re: Proposed XMPP Extension: XMPP Decentralized ID (XID)

Hey, I am a little confused about what is the intended scope of a XID, that is, what it is meant to identify? A device/resource? An entity? A user? Multiple users? A human? If we are fine with binding a XID to a specific device/resource, we could "just" use the OMEMO public key for it. Then binding the XID to a specific user in a cryptographically sane way would just be the same issue as doing that for OMEMO (which while not entirely solves, has a lot of work put into it) and there would be no additional identity or key management tasks. This reminds me of something I had in mind for reviving XEP-0174: adding a TXT key that carries a signature of other parts of the mDNS records, so that one can discover that a known OMEMO contact is nearby and send messages to them directly rather than through the server. Marvin On Tue, 2026-06-02 at 09:39 +0000, Daniel Gultsch wrote: