Extensible Messaging and Presence Protocol (XMPP): Address Format
draft-ietf-xmpp-6122bis-08
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XMPP P. Saint-Andre
Internet-Draft Cisco Systems, Inc.
Obsoletes: 6122 (if approved) October 18, 2013
Intended status: Standards Track
Expires: April 21, 2014
Extensible Messaging and Presence Protocol (XMPP): Address Format
draft-ietf-xmpp-6122bis-08
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.
Status of this Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet-
Drafts is at http://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress."
This Internet-Draft will expire on April 21, 2014.
Copyright Notice
Copyright (c) 2013 IETF Trust and the persons identified as the
document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents
carefully, as they describe your rights and restrictions with respect
to this document. Code Components extracted from this document must
include Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
Saint-Andre Expires April 21, 2014 [Page 1]
Internet-Draft XMPP Address Format October 2013
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 3
3. Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3.1. Fundamentals . . . . . . . . . . . . . . . . . . . . . . . 3
3.2. Domainpart . . . . . . . . . . . . . . . . . . . . . . . . 5
3.3. Localpart . . . . . . . . . . . . . . . . . . . . . . . . 6
3.4. Resourcepart . . . . . . . . . . . . . . . . . . . . . . . 7
4. Enforcement in JIDs and JID Parts . . . . . . . . . . . . . . 9
5. Internationalization Considerations . . . . . . . . . . . . . 11
6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 11
6.1. JIDlocalIdentifierClass . . . . . . . . . . . . . . . . . 11
6.2. JIDresourceFreeformClass . . . . . . . . . . . . . . . . . 12
7. Security Considerations . . . . . . . . . . . . . . . . . . . 12
7.1. Reuse of PRECIS . . . . . . . . . . . . . . . . . . . . . 12
7.2. Reuse of Unicode . . . . . . . . . . . . . . . . . . . . . 12
7.3. Address Spoofing . . . . . . . . . . . . . . . . . . . . . 12
7.3.1. Address Forging . . . . . . . . . . . . . . . . . . . 13
7.3.2. Address Mimicking . . . . . . . . . . . . . . . . . . 13
8. Conformance Requirements . . . . . . . . . . . . . . . . . . . 14
9. References . . . . . . . . . . . . . . . . . . . . . . . . . . 16
9.1. Normative References . . . . . . . . . . . . . . . . . . . 16
9.2. Informative References . . . . . . . . . . . . . . . . . . 17
Appendix A. Differences from RFC 6122 . . . . . . . . . . . . . . 20
Appendix B. Acknowledgements . . . . . . . . . . . . . . . . . . 21
Author's Address . . . . . . . . . . . . . . . . . . . . . . . . . 21
Saint-Andre Expires April 21, 2014 [Page 2]
Internet-Draft XMPP Address Format October 2013
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
by [RFC3920] in 2004 and [RFC6122] in 2011.
As specified in RFC 3920 and RFC 6122, the XMPP address format used
the "stringprep" technology for preparation of non-ASCII characters
[RFC3454]. Following the migration of internationalized domain names
away from stringprep, this document defines the XMPP address format
in a way that no longer depends on stringprep (see [RFC6885]).
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