Extensible Messaging and Presence Protocol (XMPP): Address Format
draft-ietf-xmpp-6122bis-22

 
Document Type Active Internet-Draft (xmpp WG)
Last updated 2015-05-20 (latest revision 2015-05-11)
Replaces draft-saintandre-xmpp-6122bis
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XMPP                                                      P. Saint-Andre
Internet-Draft                                                      &yet
Obsoletes: 6122 (if approved)                               May 11, 2015
Intended status: Standards Track
Expires: November 12, 2015

   Extensible Messaging and Presence Protocol (XMPP): Address Format
                       draft-ietf-xmpp-6122bis-22

Abstract

   This document defines the address format for the Extensible Messaging
   and Presence Protocol (XMPP), including support for code points
   outside the ASCII range.  This document obsoletes RFC 6122.

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   Copyright (c) 2015 IETF Trust and the persons identified as the
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Saint-Andre             Expires November 12, 2015               [Page 1]
Internet-Draft             XMPP Address Format                  May 2015

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Addresses . . . . . . . . . . . . . . . . . . . . . . . . . .   3
     3.1.  Fundamentals  . . . . . . . . . . . . . . . . . . . . . .   3
     3.2.  Domainpart  . . . . . . . . . . . . . . . . . . . . . . .   5
       3.2.1.  Preparation . . . . . . . . . . . . . . . . . . . . .   6
       3.2.2.  Enforcement . . . . . . . . . . . . . . . . . . . . .   6
       3.2.3.  Comparison  . . . . . . . . . . . . . . . . . . . . .   7
     3.3.  Localpart . . . . . . . . . . . . . . . . . . . . . . . .   7
       3.3.1.  Further Excluded Characters . . . . . . . . . . . . .   7
     3.4.  Resourcepart  . . . . . . . . . . . . . . . . . . . . . .   8
       3.4.1.  Applicability to XMPP Extensions  . . . . . . . . . .   9
     3.5.  Examples  . . . . . . . . . . . . . . . . . . . . . . . .   9
   4.  Enforcement in JIDs and JID Parts . . . . . . . . . . . . . .  13
   5.  Internationalization Considerations . . . . . . . . . . . . .  15
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  15
     6.1.  Stringprep Profiles Registry  . . . . . . . . . . . . . .  15
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .  16
     7.1.  Reuse of PRECIS . . . . . . . . . . . . . . . . . . . . .  16
     7.2.  Reuse of Unicode  . . . . . . . . . . . . . . . . . . . .  16
     7.3.  Address Spoofing  . . . . . . . . . . . . . . . . . . . .  16
       7.3.1.  Address Forging . . . . . . . . . . . . . . . . . . .  16
       7.3.2.  Address Mimicking . . . . . . . . . . . . . . . . . .  17
   8.  Conformance Requirements  . . . . . . . . . . . . . . . . . .  18
   9.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  20
     9.1.  Normative References  . . . . . . . . . . . . . . . . . .  20
     9.2.  Informative References  . . . . . . . . . . . . . . . . .  21
   Appendix A.  Differences from RFC 6122  . . . . . . . . . . . . .  24
   Appendix B.  Acknowledgements . . . . . . . . . . . . . . . . . .  25
   Author's Address  . . . . . . . . . . . . . . . . . . . . . . . .  25

1.  Introduction

   The Extensible Messaging and Presence Protocol (XMPP) [RFC6120] is an
   application profile of the Extensible Markup Language [XML] for
   streaming XML data in close to real time between any two or more
   network-aware entities.  The address format for XMPP entities was
   originally developed in the Jabber open-source community in 1999,
   first described by [XEP-0029] in 2002, and then defined canonically
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