3 ms·
http://xmpp.org/extensions/xep-0322.html http://xmpp.org/extensions/xep-0322.html (originating from the IoT community, where XMPP is commonly, and successfully,
by MattJ100 12y ago
http://xmpp.org/extensions/xep-0322.html http://xmpp.org/extensions/xep-0322.html (originating from the IoT community, where XMPP is commonly, and successfully, used on embedded devices like you describe).
Just please don't mention ASN.1 again :)