Internationalized Domain Names in Applications (IDNA): Registry Restrictions and Recommendations
draft-klensin-idna-rfc5891bis-06
| Document | Type | Active Internet-Draft (individual in art area) | |
|---|---|---|---|
| Authors | John Klensin , Asmus Freytag | ||
| Last updated | 2020-07-13 | ||
| Stream | IETF | ||
| Intended RFC status | Proposed Standard | ||
| Formats | plain text pdf htmlized (tools) htmlized bibtex | ||
| Reviews | |||
| Stream | WG state | (None) | |
| Document shepherd | Pete Resnick | ||
| Shepherd write-up | Show (last changed 2019-08-30) | ||
| IESG | IESG state | IESG Evaluation::AD Followup | |
| Consensus Boilerplate | Yes | ||
| Telechat date |
Has a DISCUSS. Needs 3 more YES or NO OBJECTION positions to pass. |
||
| Responsible AD | Barry Leiba | ||
| Send notices to | (None) | ||
| IANA | IANA review state | Version Changed - Review Needed | |
Network Working Group J. Klensin
Internet-Draft
Updates: 5890, 5891, 5894 (if approved) A. Freytag
Intended status: Standards Track ASMUS, Inc.
Expires: January 14, 2021 July 13, 2020
Internationalized Domain Names in Applications (IDNA): Registry
Restrictions and Recommendations
draft-klensin-idna-rfc5891bis-06
Abstract
The IDNA specifications for internationalized domain names combine
rules that determine the labels that are allowed in the DNS without
violating the protocol itself and an assignment of responsibility,
consistent with earlier specifications, for determining the labels
that are allowed in particular zones. Conformance to IDNA by
registries and other implementations requires both parts. Experience
strongly suggests that the language describing those responsibilities
was insufficiently clear to promote safe and interoperable use of the
specifications and that more details and discussion of circumstances
would have been helpful. Without making any substantive changes to
IDNA, this specification updates two of the core IDNA documents (RFCs
5890 and 5891) and the IDNA explanatory document (RFC 5894) to
provide that guidance and to correct some technical errors in the
descriptions.
Status of This Memo
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provisions of BCP 78 and BCP 79.
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material or to cite them other than as "work in progress."
This Internet-Draft will expire on January 14, 2021.
Klensin & Freytag Expires January 14, 2021 [Page 1]
Internet-Draft IDNA: Registry Restrictions July 2020
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Registry Restrictions in IDNA2008 . . . . . . . . . . . . . . 4
3. Progressive Subsets of Allowed Characters . . . . . . . . . . 5
4. Considerations for Domains Operated Primarily for the
Financial Benefit of the Registry Owner or Operator
Organization . . . . . . . . . . . . . . . . . . . . . . . . 7
5. Other corrections and updates . . . . . . . . . . . . . . . . 9
5.1. Updates to RFC 5890 . . . . . . . . . . . . . . . . . . . 9
5.2. Updates to RFC 5891 . . . . . . . . . . . . . . . . . . . 10
6. Related Discussions . . . . . . . . . . . . . . . . . . . . . 11
7. Security Considerations . . . . . . . . . . . . . . . . . . . 11
8. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 11
9. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 12
10. References . . . . . . . . . . . . . . . . . . . . . . . . . 12
10.1. Normative References . . . . . . . . . . . . . . . . . . 12
10.2. Informative References . . . . . . . . . . . . . . . . . 13
Appendix A. Change Log . . . . . . . . . . . . . . . . . . . . . 15
A.1. Changes from version -00 (2017-03-11) to -01 . . . . . . 15
A.2. Changes from version -01 (2017-09-12) to -02 . . . . . . 15
A.3. Changes from version -02 (2019-07-06) to -03 . . . . . . 16
A.4. Changes from version -03 (2019-07-22) to -04 . . . . . . 16
A.5. Changes from version -04 (2019-08-02) to -05 . . . . . . 16
A.6. Changes from version -05 (2019-08-29) to -06 . . . . . . 16
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 17
1. Introduction
Parts of the specifications for Internationalized Domain Names in
Applications (IDNA) [RFC5890] [RFC5891] [RFC5894] (collectively
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