WG Review: Recharter of Internationalized Domain Names in Applications, Revised (idnabis)

jean-michel bernier de portzamparc jmabdp at gmail.com
Tue Aug 18 20:12:22 CEST 2009

I quickly read this surprising one.
Can somebody point me where the proposed changes are? May be replace 2008 by
2009 too?
Does this affect the current WG/LC?
Thank you !

2009/8/18 IESG Secretary <iesg-secretary at ietf.org>

> A modified charter has been submitted for the Internationalized Domain
> Names in Applications, Revised (idnabis) working group in the Applications
> Area of the IETF.  The IESG has not made any determination as yet.  The
> modified charter is provided below for informational purposes only.
> Please send your comments to the IESG mailing list (iesg at ietf.org) by
> Tuesday, August 25, 2009.
> Internationalized Domain Names in Applications, Revised (idnabis)
> -------------------------------
> Last Modified: 2009-08-10
> Additional information is available at tools.ietf.org/wg/idnabis
> Chair(s):
>  - Vinton Cerf <vint at google.com>
> Applications Area Director(s):
>  - Lisa Dusseault <lisa.dusseault at gmail.com>
>  - Alexey Melnikov <alexey.melnikov at isode.com>
> Applications Area Advisor:
>  - Lisa Dusseault <lisa.dusseault at gmail.com>
> Mailing Lists:
> General Discussion: idna-update at alvestrand.no
> To Subscribe: http://www.alvestrand.no/mailman/listinfo/idna-update
> Archive: http://www.alvestrand.no/pipermail/idna-update/
> Description of Working Group:
> The original Internationalized Domain Name (IDN) WG specified rules for
> the use of characters other than Latin A(a)-Z(z), digits 0-9 and the
> hyphen (-) in domain names in RFC3490, RFC3491 and RFC3492 in 2002
> (published in 2003 and often referenced collectively as "IDNA2003").
> These documents depend on RFC 3454 and were tied to Unicode version
> 3.2. An update to the current version (5.x) is required to accommodate
> additional scripts.  In addition, experience has shown that significant
> improvements could be made in the protocol as presently specified.
> This WG is chartered to decouple IDNA from specific versions of Unicode
> using algorithms that define validity based on Unicode properties.  It
> is recognized that some explicit exceptions may be necessary in any
> case, but attempts will be made to minimize these exceptions.
> Additional goals:
>  - Separate requirements for valid IDNs at registration time (insertion
> of names into DNS zone files), vs. at resolution time (looking up those
> names)
>  - Review, and if necessary revise, the algorithms and rules for
> handling right to left character sequences in an IDN context to allow
> labels based on additional scripts and languages and to make presentation
> as predictable as reasonably possible.
>  - Permit use of some scripts that were inadvertently excluded by the
> original protocols.
>  - Ensure practical stability of validity algorithms for IDNs.
> The constraints of the original IDN WG still apply to IDNABIS, namely
> to avoid disturbing the current use and operation of the domain name
> system, and for the DNS to continue to allow any system to resolve any
> domain name in a consistent way. The client-based approach of the
> original IDN work will be maintained -- substantially new protocols or
> mechanisms are not in scope.  In particular, IDNs continue to use the
> "xn--" prefix and the same ASCII-compatible encoding, and the
> bidirectional algorithm follows the same basic design.
> The specifications are initially organized as four documents: overview
> and rationale, protocol, table algorithm, and improvements to the
> bidirectional algorithm. These documents are to be used as the basis
> for the discussion of the general direction of the work.
> This working group will be providing extended public review of the
> output of a design team that has been working on improvement of the
> IDNA specifications.
> This review-based approach is being used in part because of the way the
> work was undertaken by the team; in particular, the design team has
> been working with IETF visibility and has solicited and received
> significant amounts of technical review already from IETF participants
> and from others including experts in the Unicode specifications and the
> use of scripts in languages.  If the public review provided by this
> Working Group confirms the basic method outlined in the input documents,
> it is expected that the working group will be able to respond with any
> needed changes and close in a short period of time.  If technical issues
> arise that indicate a fundamentally different approach must be taken
> from the one outlined above, it is anticipated that this working group
> would close, and a new one with an appropriate charter would be
> considered.
> This work is intended to specify an improved means to produce and use
> stable and unambiguous IDN identifiers.
> There are a variety of generally unsolvable problems, notably the
> problem of characters that are confusingly similar in appearance (often
> known as the "phishing" problem) that are not specifically part of the
> scope of the WG although some of the preliminary results of the design
> team suggest that the improvements contemplated in the specifications
> might mitigate some of the ways in which the current IDNA specifications
> can be abused for phishing purposes.
> While it is referenced from the original IDNA2003 package, the original
> Stringprep specification, RFC 3454, is not formally part of the IDNA
> package and will not be altered by this work.
> The work will update or obsolete RFC 3490.  It is not expected to
> continue to use Nameprep (RFC 3491).  Nameprep is used by other
> specifications; determining how (or whether) to update those
> specifications and, consequently, the long-term status of Nameprep,
> are not part of this effort.  The method for ASCII-compatible ("ACE")
> encoding of IDNs, "Punycode" (RFC 3492) will not be revised by this WG.
> Subject to the more general constraints described above, the WG is
> permitted to consider changes that are not strictly backwards-
> compatible.  For any such change that is recommended, it is expected to
> document the reasons for the change, the characters affected, and
> possible transition strategies.
> The assumptions outlined above are considered critical to the WG
> constituted by this charter.  The WG will stop work and recommend that
> a new charter be generated if it concludes that any of the following are
> necessary to meet its goals:
>  (i) A change to the "punycode" algorithm or to the ACE approach to
> encoding names  in the DNS.
>  (ii) A change to the ACE prefix from "xn--"
>  (iii) A change to the basic approach taken in the design team
> documents (Namely: independence from Unicode version and reduction of
> dependency on character mapping )
> Goals and Milestones:
> Apr 2008     WG formation
> May 2008     Decision on form and structure of the WG document set
> Sep 2008     WG Last Call on WG document set
> Nov 2008     IETF Last Call on WG document set
> _______________________________________________
> Idna-update mailing list
> Idna-update at alvestrand.no
> http://www.alvestrand.no/mailman/listinfo/idna-update
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