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Mapping Characters for Internationalized Domain Names in Applications (IDNA) 2008 (RFC5895) Disclosure Number: IPCOM000199698D
Original Publication Date: 2010-Sep-01
Included in the Prior Art Database: 2010-Sep-15
Document File: 14 page(s) / 17K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

P. Resnick: AUTHOR [+2]


This document describes the operations that can be applied to user input in order to get it into a form that is acceptable by the Internationalized Domain Names in Applications (IDNA) protocol [IDNA2008protocol]. It includes a general implementation procedure for mapping.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 17% of the total text.

Independent Submission                                        P. Resnick Request for Comments: 5895                         Qualcomm Incorporated Category: Informational                                       P. Hoffman ISSN: 2070-1721                                           VPN Consortium                                                           September 2010

                          Mapping Characters for        Internationalized Domain Names in Applications (IDNA) 2008


   In the original version of the Internationalized Domain Names in    Applications (IDNA) protocol, any Unicode code points taken from user    input were mapped into a set of Unicode code points that "made    sense", and then encoded and passed to the domain name system (DNS).    The IDNA2008 protocol (described in RFCs 5890, 5891, 5892, and 5893)    presumes that the input to the protocol comes from a set of    "permitted" code points, which it then encodes and passes to the DNS,    but does not specify what to do with the result of user input.  This    document describes the actions that can be taken by an implementation    between receiving user input and passing permitted code points to the    new IDNA protocol.

Status of This Memo

   This document is not an Internet Standards Track specification; it is    published for informational purposes.

   This is a contribution to the RFC Series, independently of any other    RFC stream.  The RFC Editor has chosen to publish this document at    its discretion and makes no statement about its value for    implementation or deployment.  Documents approved for publication by    the RFC Editor are not a candidate for any level of Internet    Standard; see Section 2 of RFC 5741.

   Information about the current status of this document, any errata,    and how to provide feedback on it may be obtained at

 Resnick & Hoffman             Informational                     [Page 1]
 RFC 5895                      IDNA Mapping                September 2010

 Copyright Notice

   Copyright (c) 2010 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    ( 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.

1.  Introduction

   This document describes the operations that can be applied to user    in...