Delegation Information (Referrals) Signer for DNSSEC
draft-fujiwara-dnsop-delegation-information-signer-00
|
Document |
Type |
|
Active Internet-Draft (individual)
|
|
Author |
|
Kazunori Fujiwara
|
|
Last updated |
|
2020-11-02
|
|
Stream |
|
(None)
|
|
Intended RFC status |
|
(None)
|
|
Formats |
|
plain text
pdf
htmlized (tools)
htmlized
bibtex
|
Stream |
Stream state |
|
(No stream defined) |
|
Consensus Boilerplate |
|
Unknown
|
|
RFC Editor Note |
|
(None)
|
IESG |
IESG state |
|
I-D Exists
|
|
Telechat date |
|
|
|
Responsible AD |
|
(None)
|
|
Send notices to |
|
(None)
|
Network Working Group K. Fujiwara
Internet-Draft JPRS
Intended status: Standards Track November 03, 2020
Expires: May 7, 2021
Delegation Information (Referrals) Signer for DNSSEC
draft-fujiwara-dnsop-delegation-information-signer-00
Abstract
DNSSEC does not protect delegation information, it contains NS RRSet
on the parent side and glue records. This document defines
delegation information signer (DiS) resource record for protecting
the delegation information, by inserting on the parent side of zone
cut to hold a hash of delegation information. The DiS resource
record reuses the type code and wire format of DS resource record,
and distinguishes it from existing DS RRSet by using a new digest
type. This document also describes the usage of DiS resource record
and shows the implications on security-aware resolvers. The
definition and usage are compatible with current DNSSEC.
Status of This Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet-
Drafts is at https://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress."
This Internet-Draft will expire on May 7, 2021.
Copyright Notice
Copyright (c) 2020 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
(https://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents
Fujiwara Expires May 7, 2021 [Page 1]
Internet-Draft referral-signer November 2020
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.
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 3
3. Specification of the Delegation information Signer . . . . . 3
3.1. New DS RR Usage: Delegation information signer (DiS) . . 3
3.2. DiS resource record in a Zone . . . . . . . . . . . . . . 4
3.3. Change of Authoritative servers . . . . . . . . . . . . . 4
3.4. Change of validating resolvers . . . . . . . . . . . . . 4
4. Compatibility with the current DNSSEC . . . . . . . . . . . . 4
5. Signing Priming Responses . . . . . . . . . . . . . . . . . . 5
6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 5
7. Security Considerations . . . . . . . . . . . . . . . . . . . 5
8. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 5
9. Normative References . . . . . . . . . . . . . . . . . . . . 5
Author's Address . . . . . . . . . . . . . . . . . . . . . . . . 6
1. Introduction
The current DNSSEC specifications [RFC4033], [RFC4034], [RFC4035] do
not protect the parent side NS RRSet and glue contained in the
delegation information.
Recently, the word "in-domain" is defined by [RFC8499]. The in-
domain glue is necessary and sufficient glue information for name
resolution. [I-D.ietf-dnsop-glue-is-not-optional] proposes that Glue
records are expected to be returned as part of a referral and if they
cannot be fitted into the UDP response, TC=1 MUST be set to inform
the client that the response is incomplete and that TCP SHOULD be
used to retrieve the full response.
Then, we can define complete delegation information set that contains
the parent side NS RRSet and all in-domain glue. We can generate a
hash of the parent side NS RRSet and in-domain glue, and put it in
DNS as a parent side information.
The delegation information signer (DiS) resource record (RR) is
inserted at a zone cut (i.e., a delegation point) to hold a hash of
delegation information (parent side NS RRSet) and required glue. The
DiS resource record reuses DS resource record and distinguishes it
from DS RRSet by using a new digest type and a new algorithm number.
Fujiwara Expires May 7, 2021 [Page 2]
Internet-Draft referral-signer November 2020
Show full document text