Preparation, Enforcement, and Comparison of Internationalized Strings Representing Nicknames
RFC 8266
| Document | Type |
RFC - Proposed Standard
(October 2017; No errata)
Obsoletes RFC 7700
|
|
|---|---|---|---|
| Author | Peter Saint-Andre | ||
| Last updated | 2017-10-05 | ||
| Stream | IETF | ||
| Formats | plain text html pdf htmlized bibtex | ||
| Reviews | |||
| Stream | WG state | Submitted to IESG for Publication | |
| Document shepherd | Marc Blanchet | ||
| Shepherd write-up | Show (last changed 2017-05-30) | ||
| IESG | IESG state | RFC 8266 (Proposed Standard) | |
| Consensus Boilerplate | Yes | ||
| Telechat date | |||
| Responsible AD | Alexey Melnikov | ||
| Send notices to | Marc Blanchet <Marc.Blanchet@viagenie.ca> | ||
| IANA | IANA review state | Version Changed - Review Needed | |
| IANA action state | RFC-Ed-Ack | ||
Internet Engineering Task Force (IETF) P. Saint-Andre
Request for Comments: 8266 Jabber.org
Obsoletes: 7700 October 2017
Category: Standards Track
ISSN: 2070-1721
Preparation, Enforcement, and Comparison of Internationalized Strings
Representing Nicknames
Abstract
This document describes methods for handling Unicode strings
representing memorable, human-friendly names (called "nicknames",
"display names", or "petnames") for people, devices, accounts,
websites, and other entities. This document obsoletes RFC 7700.
Status of This Memo
This is an Internet Standards Track document.
This document is a product of the Internet Engineering Task Force
(IETF). It represents the consensus of the IETF community. It has
received public review and has been approved for publication by the
Internet Engineering Steering Group (IESG). Further information on
Internet Standards is available in Section 2 of RFC 7841.
Information about the current status of this document, any errata,
and how to provide feedback on it may be obtained at
https://www.rfc-editor.org/info/rfc8266.
Copyright Notice
Copyright (c) 2017 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
(https://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 Standards Track [Page 1]
RFC 8266 PRECIS: Nicknames October 2017
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
1.1. Overview . . . . . . . . . . . . . . . . . . . . . . . . 2
1.2. Terminology . . . . . . . . . . . . . . . . . . . . . . . 3
2. Nickname Profile . . . . . . . . . . . . . . . . . . . . . . 4
2.1. Rules . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.2. Preparation . . . . . . . . . . . . . . . . . . . . . . . 5
2.3. Enforcement . . . . . . . . . . . . . . . . . . . . . . . 5
2.4. Comparison . . . . . . . . . . . . . . . . . . . . . . . 6
3. Examples . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4. Use in Application Protocols . . . . . . . . . . . . . . . . 8
5. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 9
6. Security Considerations . . . . . . . . . . . . . . . . . . . 9
6.1. Authentication and Authorization . . . . . . . . . . . . 9
6.2. Reuse of PRECIS . . . . . . . . . . . . . . . . . . . . . 10
6.3. Reuse of Unicode . . . . . . . . . . . . . . . . . . . . 10
6.4. Visually Similar Characters . . . . . . . . . . . . . . . 10
7. References . . . . . . . . . . . . . . . . . . . . . . . . . 10
7.1. Normative References . . . . . . . . . . . . . . . . . . 10
7.2. Informative References . . . . . . . . . . . . . . . . . 11
Appendix A. Changes from RFC 7700 . . . . . . . . . . . . . . . 12
Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . . 12
Author's Address . . . . . . . . . . . . . . . . . . . . . . . . 13
1. Introduction
1.1. Overview
A number of technologies and applications provide the ability for a
person to choose a memorable, human-friendly name in a communications
context or to set such a name for another entity such as a device,
account, contact, or website. Such names are variously called
"nicknames" (e.g., in chat room applications), "display names" (e.g.,
in Internet mail), or "petnames" (see [PETNAME-SYSTEMS]); for
consistency, these are all called "nicknames" in this document.
Nicknames are commonly supported in technologies for textual chat
rooms, such as:
o Internet Relay Chat (IRC) [RFC2811]
o The Message Session Relay Protocol (MSRP) [RFC4975] [RFC7701]
o Centralized Conferencing (XCON) [RFC5239] [XCON-SYSTEM]
o The Extensible Messaging and Presence Protocol (XMPP) [RFC6120]
[XEP-0045]
Saint-Andre Standards Track [Page 2]
RFC 8266 PRECIS: Nicknames October 2017
Recent chat room technologies also allow internationalized nicknames
because they support code points from outside the ASCII range
[RFC20], typically by means of the Unicode coded character set
[Unicode]. Although such nicknames tend to be used primarily for
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