XEP-0217 (Simplified Encrypted Session Negotiation) has been Deferred because of inactivity.
Abstract: This document specifies a minimal subset of the Encrypted Session Negotiation protocol sufficent for negotiating an end-to-end encrypted session. URL: http://www.xmpp.org/extensions/xep-0217.html If and when a new revision of this XEP is published, its status will be changed back to Experimental.
