DNSSEC Trust Anchor Publication for the Root Zone
RFC 7958
| Document | Type |
RFC - Informational
(August 2016; Errata)
Was draft-jabley-dnssec-trust-anchor (individual)
|
|
|---|---|---|---|
| Authors | Joe Abley , Jakob Schlyter , Guillaume Bailey , Paul Hoffman | ||
| Last updated | 2020-01-27 | ||
| Stream | Independent Submission | ||
| Formats | plain text html pdf htmlized (tools) htmlized with errata bibtex | ||
| IETF conflict review | conflict-review-jabley-dnssec-trust-anchor | ||
| Stream | ISE state | Published RFC | |
| Consensus Boilerplate | Unknown | ||
| Document shepherd | Adrian Farrel | ||
| Shepherd write-up | Show (last changed 2016-05-31) | ||
| IESG | IESG state | RFC 7958 (Informational) | |
| Telechat date | |||
| Responsible AD | (None) | ||
| Send notices to | "Nevil Brownlee" <rfc-ise@rfc-editor.org> | ||
| IANA | IANA review state | Version Changed - Review Needed | |
| IANA action state | RFC-Ed-Ack | ||
Independent Submission J. Abley
Request for Comments: 7958 Dyn, Inc.
Category: Informational J. Schlyter
ISSN: 2070-1721 Kirei AB
G. Bailey
Independent
P. Hoffman
ICANN
August 2016
DNSSEC Trust Anchor Publication for the Root Zone
Abstract
The root zone of the Domain Name System (DNS) has been
cryptographically signed using DNS Security Extensions (DNSSEC).
In order to obtain secure answers from the root zone of the DNS using
DNSSEC, a client must configure a suitable trust anchor. This
document describes the format and publication mechanisms IANA has
used to distribute the DNSSEC trust anchors.
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 7841.
Information about the current status of this document, any errata,
and how to provide feedback on it may be obtained at
http://www.rfc-editor.org/info/rfc7958.
Abley, et al. Informational [Page 1]
RFC 7958 Root Zone Trust Anchor Publication August 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.
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1. Definitions . . . . . . . . . . . . . . . . . . . . . . . 4
2. IANA DNSSEC Root Zone Trust Anchor Formats and Semantics . . 4
2.1. Hashes in XML . . . . . . . . . . . . . . . . . . . . . . 4
2.1.1. XML Syntax . . . . . . . . . . . . . . . . . . . . . 5
2.1.2. XML Semantics . . . . . . . . . . . . . . . . . . . . 5
2.1.3. Converting from XML to DS Records . . . . . . . . . . 7
2.1.4. XML Example . . . . . . . . . . . . . . . . . . . . . 8
2.2. Certificates . . . . . . . . . . . . . . . . . . . . . . 8
2.3. Certificate Signing Requests . . . . . . . . . . . . . . 9
3. Root Zone Trust Anchor Retrieval . . . . . . . . . . . . . . 9
3.1. Retrieving Trust Anchors with HTTPS and HTTP . . . . . . 9
4. Accepting DNSSEC Trust Anchors . . . . . . . . . . . . . . . 10
5. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 11
6. Security Considerations . . . . . . . . . . . . . . . . . . . 11
7. References . . . . . . . . . . . . . . . . . . . . . . . . . 11
7.1. Normative References . . . . . . . . . . . . . . . . . . 11
7.2. Informative References . . . . . . . . . . . . . . . . . 13
Appendix A. Historical Note . . . . . . . . . . . . . . . . . . 14
Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . . 14
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 14
Abley, et al. Informational [Page 2]
RFC 7958 Root Zone Trust Anchor Publication August 2016
1. Introduction
The Domain Name System (DNS) is described in [RFC1034] and [RFC1035].
DNS Security Extensions (DNSSEC) are described in [RFC4033],
[RFC4034], [RFC4035], [RFC4509], [RFC5155], and [RFC5702].
A discussion of operational practices relating to DNSSEC can be found
in [RFC6781].
In the DNSSEC protocol, Resource Record Sets (RRSets) are signed
cryptographically. This means that a response to a query contains
signatures that allow the integrity and authenticity of the RRSet to
be verified. DNSSEC signatures are validated by following a chain of
signatures to a "trust anchor". The reason for trusting a trust
anchor is outside the DNSSEC protocol, but having one or more trust
anchors is required for the DNSSEC protocol to work.
The publication of trust anchors for the root zone of the DNS is an
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