Managing DS Records from the Parent via CDS/CDNSKEY
RFC 8078
Document | Type |
RFC - Proposed Standard
(March 2017; Errata)
Updates RFC 7344
|
|
---|---|---|---|
Authors | Ólafur Guðmundsson , Paul Wouters | ||
Last updated | 2020-01-21 | ||
Replaces | draft-ogud-dnsop-maintain-ds | ||
Stream | IETF | ||
Formats | plain text html pdf htmlized with errata bibtex | ||
Reviews | |||
Stream | WG state | Submitted to IESG for Publication | |
Document shepherd | Tim Wicinski | ||
Shepherd write-up | Show (last changed 2016-06-21) | ||
IESG | IESG state | RFC 8078 (Proposed Standard) | |
Consensus Boilerplate | Yes | ||
Telechat date | |||
Responsible AD | Joel Jaeggli | ||
Send notices to | "Tim Wicinski" <tjw.ietf@gmail.com> | ||
IANA | IANA review state | Version Changed - Review Needed | |
IANA action state | RFC-Ed-Ack |
Internet Engineering Task Force (IETF) O. Gudmundsson Request for Comments: 8078 CloudFlare Updates: 7344 P. Wouters Category: Standards Track Red Hat ISSN: 2070-1721 March 2017 Managing DS Records from the Parent via CDS/CDNSKEY Abstract RFC 7344 specifies how DNS trust can be maintained across key rollovers in-band between parent and child. This document elevates RFC 7344 from Informational to Standards Track. It also adds a method for initial trust setup and removal of a secure entry point. Changing a domain's DNSSEC status can be a complicated matter involving multiple unrelated parties. Some of these parties, such as the DNS operator, might not even be known by all the organizations involved. The inability to disable DNSSEC via in-band signaling is seen as a problem or liability that prevents some DNSSEC adoption at a large scale. This document adds a method for in-band signaling of these DNSSEC status changes. This document describes reasonable policies to ease deployment of the initial acceptance of new secure entry points (DS records). It is preferable that operators collaborate on the transfer or move of a domain. The best method is to perform a Key Signing Key (KSK) plus Zone Signing Key (ZSK) rollover. If that is not possible, the method using an unsigned intermediate state described in this document can be used to move the domain between two parties. This leaves the domain temporarily unsigned and vulnerable to DNS spoofing, but that is preferred over the alternative of validation failures due to a mismatched DS and DNSKEY record. Gudmundsson & Wouters Standards Track [Page 1] RFC 8078 Managing DS Records March 2017 Status of This Memo This is an Internet Standards Track document. This document is a product of the Internet Engineering Task Force (IETF). It represents the consensus of the IETF community. It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG). Further information on Internet Standards is available in 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/rfc8078. Copyright Notice Copyright (c) 2017 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 the Trust Legal Provisions and are provided without warranty as described in the Simplified BSD License. Gudmundsson & Wouters Standards Track [Page 2] RFC 8078 Managing DS Records March 2017 Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3 1.1. Introducing a DS Record . . . . . . . . . . . . . . . . . 3 1.2. Removing a DS Record . . . . . . . . . . . . . . . . . . 4 1.3. Notation . . . . . . . . . . . . . . . . . . . . . . . . 4 1.4. Terminology . . . . . . . . . . . . . . . . . . . . . . . 5 2. The Three Uses of CDS . . . . . . . . . . . . . . . . . . . . 5 2.1. The Meaning of the CDS RRset . . . . . . . . . . . . . . 5 3. Enabling DNSSEC via CDS/CDNSKEY . . . . . . . . . . . . . . . 6 3.1. Accept Policy via Authenticated Channel . . . . . . . . . 6 3.2. Accept with Extra Checks . . . . . . . . . . . . . . . . 6 3.3. Accept after Delay . . . . . . . . . . . . . . . . . . . 7 3.4. Accept with Challenge . . . . . . . . . . . . . . . . . . 7 3.5. Accept from Inception . . . . . . . . . . . . . . . . . . 7 4. DNSSEC Delete Algorithm . . . . . . . . . . . . . . . . . . . 7 5. Security Considerations . . . . . . . . . . . . . . . . . . . 8 6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 9 6.1. Promoting RFC 7344 to Standards Track . . . . . . . . . . 9 7. References . . . . . . . . . . . . . . . . . . . . . . . . . 9 7.1. Normative References . . . . . . . . . . . . . . . . . . 9 7.2. Informative References . . . . . . . . . . . . . . . . . 10 Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . . 10Show full document text