DNS Privacy Requirements for Exchanges between Recursive Resolvers and Authoritative Servers
draft-ietf-dprive-phase2-requirements-02
DPRIVE J. Livingood
Internet-Draft Comcast
Intended status: Informational A. Mayrhofer
Expires: May 6, 2021 nic.at GmbH
B. Overeinder
NLnet Labs
November 02, 2020
DNS Privacy Requirements for Exchanges between Recursive Resolvers and
Authoritative Servers
draft-ietf-dprive-phase2-requirements-02
Abstract
This document describes requirements and considerations for adding
confidentiality to DNS exchanges between recursive resolvers and
authoritative servers. The intent of this document is to guide
Internet Drafts in the DNS Private Exchange (DPRIVE) Working Group
pertaining to recursive to authorized name servers, with the stated
requirements and considerations.
Status of This Memo
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provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering
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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 6, 2021.
Copyright Notice
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document authors. All rights reserved.
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publication of this document. Please review these documents
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Internet-Draft DPRIVE Phase 2 Requirements November 2020
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Table of Contents
1. Introduction & Scope . . . . . . . . . . . . . . . . . . . . 2
2. Document Work Via GitHub . . . . . . . . . . . . . . . . . . 3
3. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 3
4. Threat Model and Problem Statement . . . . . . . . . . . . . 3
5. Features to Provide Confidentiality . . . . . . . . . . . . . 4
5.1. Requirements . . . . . . . . . . . . . . . . . . . . . . 4
5.2. Optional Features . . . . . . . . . . . . . . . . . . . . 5
6. Security Considerations . . . . . . . . . . . . . . . . . . . 5
7. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 6
8. Changelog . . . . . . . . . . . . . . . . . . . . . . . . . . 6
9. APPENDIX: Perspectives and Use Cases . . . . . . . . . . . . 6
9.1. The User Perspective and Use Cases . . . . . . . . . . . 6
9.2. The Operator Perspective and Use Cases . . . . . . . . . 7
9.3. The Implementor / Software Vendor Perspective and Use
Cases . . . . . . . . . . . . . . . . . . . . . . . . . . 9
10. References . . . . . . . . . . . . . . . . . . . . . . . . . 9
10.1. Normative References . . . . . . . . . . . . . . . . . . 9
10.2. Informative References . . . . . . . . . . . . . . . . . 9
10.3. URIs . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . . 10
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 10
1. Introduction & Scope
The 2018 approved charter of the IETF DPRIVE Working Group [1]
contains milestones related to confidentiality aspects of DNS
transactions between the recursive resolver and authoritative name
servers.
This is also reflected in the DPRIVE milestones [2], which (as of
October 2019) contains two relevant milestones:
Develop requirements for adding confidentiality to DNS exchanges
between recursive resolvers and authoritative servers (unpublished
document).
Investigate potential solutions for adding confidentiality to DNS
exchanges involving authoritative servers (Experimental).
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