DNS Privacy Requirements for Exchanges between Recursive Resolvers and Authoritative Servers
draft-ietf-dprive-phase2-requirements-01
DPRIVE J. Livingood
Internet-Draft Comcast
Intended status: Informational A. Mayrhofer
Expires: December 18, 2020 nic.at GmbH
B. Overeinder
NLnet Labs
June 16, 2020
DNS Privacy Requirements for Exchanges between Recursive Resolvers and
Authoritative Servers
draft-ietf-dprive-phase2-requirements-01
Abstract
This document provides requirements for adding confidentiality to DNS
exchanges between recursive resolvers and authoritative servers.
Status of This Memo
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provisions of BCP 78 and BCP 79.
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This Internet-Draft will expire on December 18, 2020.
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Internet-Draft DPRIVE Phase 2 Requirements June 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. Requirements . . . . . . . . . . . . . . . . . . . . . . . . 4
5.1. Mandatory Requirements . . . . . . . . . . . . . . . . . 4
5.2. Optional Requirements . . . . . . . . . . . . . . . . . . 5
6. Security Considerations . . . . . . . . . . . . . . . . . . . 5
7. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 5
8. Changelog . . . . . . . . . . . . . . . . . . . . . . . . . . 5
9. APPENDIX: Perspectives and Use Cases . . . . . . . . . . . . 5
9.1. The User Perspective and Use Cases . . . . . . . . . . . 6
9.2. The Operator Perspective and Use Cases . . . . . . . . . 6
9.3. The Implementor / Software Vendor Perspective and Use
Cases . . . . . . . . . . . . . . . . . . . . . . . . . . 8
10. References . . . . . . . . . . . . . . . . . . . . . . . . . 9
10.1. Normative References . . . . . . . . . . . . . . . . . . 9
10.2. Informative References . . . . . . . . . . . . . . . . . 9
10.3. URIs . . . . . . . . . . . . . . . . . . . . . . . . . . 9
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 iterative 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).
This document intends to cover the first milestone for defining
requirements for adding confidentiality to DNS exchanges between
recursive resolvers and authoritative servers. This may in turn lead
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to progress in investigating, developing and standardizing potential
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