Usage Profiles for DNS over TLS and DNS over DTLS
RFC 8310
| Document | Type |
RFC - Proposed Standard
(March 2018; No errata)
Updates RFC 7858
|
|
|---|---|---|---|
| Last updated | 2018-03-21 | ||
| Replaces | draft-dgr-dprive-dtls-and-tls-profiles | ||
| Stream | IETF | ||
| Formats | plain text pdf htmlized bibtex | ||
| Reviews | |||
| Stream | WG state | Submitted to IESG for Publication | |
| Document shepherd | Tim Wicinski | ||
| Shepherd write-up | Show (last changed 2017-01-24) | ||
| IESG | IESG state | RFC 8310 (Proposed Standard) | |
| Consensus Boilerplate | Yes | ||
| Telechat date | |||
| Responsible AD | Terry Manderson | ||
| Send notices to | "Tim Wicinski" <tjw.ietf@gmail.com> | ||
| IANA | IANA review state | Version Changed - Review Needed | |
| IANA action state | No IANA Actions | ||
Internet Engineering Task Force (IETF) S. Dickinson
Request for Comments: 8310 Sinodun
Updates: 7858 D. Gillmor
Category: Standards Track ACLU
ISSN: 2070-1721 T. Reddy
McAfee
March 2018
Usage Profiles for DNS over TLS and DNS over DTLS
Abstract
This document discusses usage profiles, based on one or more
authentication mechanisms, which can be used for DNS over Transport
Layer Security (TLS) or Datagram TLS (DTLS). These profiles can
increase the privacy of DNS transactions compared to using only
cleartext DNS. This document also specifies new authentication
mechanisms -- it describes several ways that a DNS client can use an
authentication domain name to authenticate a (D)TLS connection to a
DNS server. Additionally, it defines (D)TLS protocol profiles for
DNS clients and servers implementing DNS over (D)TLS. This document
updates RFC 7858.
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
https://www.rfc-editor.org/info/rfc8310.
Dickinson, et al. Standards Track [Page 1]
RFC 8310 Usage Profiles for DNS over (D)TLS March 2018
Copyright Notice
Copyright (c) 2018 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
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.
Dickinson, et al. Standards Track [Page 2]
RFC 8310 Usage Profiles for DNS over (D)TLS March 2018
Table of Contents
1. Introduction ....................................................4
2. Terminology .....................................................6
3. Scope ...........................................................7
4. Discussion ......................................................8
5. Usage Profiles ..................................................8
5.1. DNS Resolution ............................................11
6. Authentication in DNS over (D)TLS ..............................11
6.1. DNS-over-(D)TLS Startup Configuration Problems ............11
6.2. Credential Verification ...................................12
6.3. Summary of Authentication Mechanisms ......................12
6.4. Combining Authentication Mechanisms .......................15
6.5. Authentication in Opportunistic Privacy ...................15
6.6. Authentication in Strict Privacy ..........................16
6.7. Implementation Guidance ...................................16
7. Sources of Authentication Domain Names .........................17
7.1. Full Direct Configuration .................................17
7.2. Direct Configuration of ADN Only ..........................17
7.3. Dynamic Discovery of ADN ..................................17
7.3.1. DHCP ...............................................18
8. Credential Verification Based on Authentication Domain Name ....18
8.1. Authentication Based on PKIX Certificate ..................18
8.2. DANE ......................................................19
8.2.1. Direct DNS Meta-Queries ............................20
8.2.2. TLS DNSSEC Chain Extension .........................20
9. (D)TLS Protocol Profile ........................................20
10. IANA Considerations ...........................................21
11. Security Considerations .......................................21
11.1. Countermeasures to DNS Traffic Analysis ..................22
12. References ....................................................22
12.1. Normative References .....................................22
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