Usage and (D)TLS Profiles for DNS-over-(D)TLS
draft-ietf-dprive-dtls-and-tls-profiles-10
The information below is for an old version of the document | |||
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Document | Type | Active Internet-Draft (dprive WG) | |
Authors | Sara Dickinson , Daniel Gillmor , Tirumaleswar Reddy.K | ||
Last updated | 2017-06-16 | ||
Replaces | draft-dgr-dprive-dtls-and-tls-profiles | ||
Stream | IETF | ||
Intended RFC status | Proposed Standard | ||
Formats | pdf htmlized (tools) 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 | IESG Evaluation::AD Followup | |
Consensus Boilerplate | Yes | ||
Telechat date |
Needs 6 more YES or NO OBJECTION positions to pass. |
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Responsible AD | Terry Manderson | ||
Send notices to | "Tim Wicinski" <tjw.ietf@gmail.com> | ||
IANA | IANA review state | Version Changed - Review Needed |
dprive S. Dickinson Internet-Draft Sinodun Updates: 7858 (if approved) D. Gillmor Intended status: Standards Track ACLU Expires: December 18, 2017 T. Reddy McAfee June 16, 2017 Usage and (D)TLS Profiles for DNS-over-(D)TLS draft-ietf-dprive-dtls-and-tls-profiles-10 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 clear text DNS. This document also specifies new authentication mechanisms - it describes several ways 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 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 http://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 December 18, 2017. Copyright Notice Copyright (c) 2017 IETF Trust and the persons identified as the document authors. All rights reserved. Dickinson, et al. Expires December 18, 2017 [Page 1] Internet-Draft (D)TLS Authentication for DNS June 2017 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. Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3 2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 5 3. Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 4. Discussion . . . . . . . . . . . . . . . . . . . . . . . . . 7 5. Usage Profiles . . . . . . . . . . . . . . . . . . . . . . . 7 5.1. DNS Resolution . . . . . . . . . . . . . . . . . . . . . 10 6. Authentication in DNS-over(D)TLS . . . . . . . . . . . . . . 10 6.1. DNS-over-(D)TLS Startup Configuration Problems . . . . . 10 6.2. Credential Verification . . . . . . . . . . . . . . . . . 11 6.3. Summary of Authentication Mechanisms . . . . . . . . . . 11 6.4. Combining Authentication Mechanisms . . . . . . . . . . . 14 6.5. Authentication in Opportunistic Privacy . . . . . . . . . 14 6.6. Authentication in Strict Privacy . . . . . . . . . . . . 15 6.7. Implementation guidance . . . . . . . . . . . . . . . . . 15 7. Sources of Authentication Domain Names . . . . . . . . . . . 15 7.1. Full direct configuration . . . . . . . . . . . . . . . . 15 7.2. Direct configuration of ADN only . . . . . . . . . . . . 16 7.3. Dynamic discovery of ADN . . . . . . . . . . . . . . . . 16 7.3.1. DHCP . . . . . . . . . . . . . . . . . . . . . . . . 16 8. Authentication Domain Name based Credential Verification . . 17 8.1. PKIX Certificate Based Authentication . . . . . . . . . . 17 8.2. DANE . . . . . . . . . . . . . . . . . . . . . . . . . . 17 8.2.1. Direct DNS Lookup . . . . . . . . . . . . . . . . . . 18 8.2.2. TLS DNSSEC Chain extension . . . . . . . . . . . . . 18 9. (D)TLS Protocol Profile . . . . . . . . . . . . . . . . . . . 19 10. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 20 11. Security Considerations . . . . . . . . . . . . . . . . . . . 20 11.1. Counter-measures to DNS Traffic Analysis . . . . . . . . 20 12. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 21 13. References . . . . . . . . . . . . . . . . . . . . . . . . . 21Show full document text