Preparation, Enforcement, and Comparison of Internationalized Strings Representing Nicknames
draft-ietf-precis-7700bis-00
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PRECIS P. Saint-Andre
Internet-Draft Filament
Obsoletes: 7700 (if approved) April 5, 2016
Intended status: Standards Track
Expires: October 7, 2016
Preparation, Enforcement, and Comparison of Internationalized Strings
Representing Nicknames
draft-ietf-precis-7700bis-00
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 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 October 7, 2016.
Copyright Notice
Copyright (c) 2016 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
Saint-Andre Expires October 7, 2016 [Page 1]
Internet-Draft PRECIS: Nickname April 2016
the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
1.1. Overview . . . . . . . . . . . . . . . . . . . . . . . . 2
1.2. Terminology . . . . . . . . . . . . . . . . . . . . . . . 3
2. Nickname Profile . . . . . . . . . . . . . . . . . . . . . . 3
2.1. Rules . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.2. Preparation . . . . . . . . . . . . . . . . . . . . . . . 4
2.3. Enforcement . . . . . . . . . . . . . . . . . . . . . . . 5
2.4. Comparison . . . . . . . . . . . . . . . . . . . . . . . 5
3. Examples . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4. Use in Application Protocols . . . . . . . . . . . . . . . . 6
5. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 7
6. Security Considerations . . . . . . . . . . . . . . . . . . . 8
6.1. Reuse of PRECIS . . . . . . . . . . . . . . . . . . . . . 8
6.2. Reuse of Unicode . . . . . . . . . . . . . . . . . . . . 8
6.3. Visually Similar Characters . . . . . . . . . . . . . . . 8
7. References . . . . . . . . . . . . . . . . . . . . . . . . . 8
7.1. Normative References . . . . . . . . . . . . . . . . . . 8
7.2. Informative References . . . . . . . . . . . . . . . . . 9
Appendix A. Acknowledgements . . . . . . . . . . . . . . . . . . 10
Author's Address . . . . . . . . . . . . . . . . . . . . . . . . 11
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, e.g., Internet Relay Chat [RFC2811] and multi-party chat
technologies based on the Extensible Messaging and Presence Protocol
(XMPP) [RFC6120] [XEP-0045], the Message Session Relay Protocol
(MSRP) [RFC4975] [RFC7701], and Centralized Conferencing (XCON)
[RFC5239] [XCON-SYSTEM]. Recent chat room technologies also allow
internationalized nicknames because they support characters from
outside the ASCII range [RFC20], typically by means of the Unicode
character set [Unicode]. Although such nicknames tend to be used
primarily for display purposes, they are sometimes used for
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