Authentication and (D)TLS Profile for DNS-over-(D)TLS
draft-ietf-dprive-dtls-and-tls-profiles-04

The information below is for an old version of the document
Document Type Active Internet-Draft (dprive WG)
Last updated 2016-10-12 (latest revision 2016-10-07)
Replaces draft-dgr-dprive-dtls-and-tls-profiles
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dprive                                                      S. Dickinson
Internet-Draft                                                   Sinodun
Intended status: Standards Track                              D. Gillmor
Expires: April 10, 2017                                             ACLU
                                                                T. Reddy
                                                                   Cisco
                                                         October 7, 2016

         Authentication and (D)TLS Profile for DNS-over-(D)TLS
               draft-ietf-dprive-dtls-and-tls-profiles-04

Abstract

   This document describes how a DNS client can use a domain name to
   authenticate a DNS server that uses Transport Layer Security (TLS)
   and Datagram TLS (DTLS).  Additionally, it defines (D)TLS profiles
   for DNS clients and servers implementing DNS-over-TLS and DNS-over-
   DTLS.

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
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   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
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   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on April 10, 2017.

Copyright Notice

   Copyright (c) 2016 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
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   (http://trustee.ietf.org/license-info) in effect on the date of
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   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this document must

Dickinson, et al.        Expires April 10, 2017                 [Page 1]
Internet-Draft            (D)TLS Authentication             October 2016

   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 . . . . . . . . . . . . . . . . . . . . . . . . .   4
   3.  Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . .   5
   4.  Discussion  . . . . . . . . . . . . . . . . . . . . . . . . .   5
     4.1.  Background  . . . . . . . . . . . . . . . . . . . . . . .   5
     4.2.  Usage Profiles  . . . . . . . . . . . . . . . . . . . . .   6
       4.2.1.  DNS Resolution  . . . . . . . . . . . . . . . . . . .   8
     4.3.  Authentication  . . . . . . . . . . . . . . . . . . . . .   8
       4.3.1.  DNS-over-(D)TLS Bootstrapping Problems  . . . . . . .   8
       4.3.2.  Credential Verification . . . . . . . . . . . . . . .   8
       4.3.3.  Implementation guidance . . . . . . . . . . . . . . .   9
   5.  Authentication in Opportunistic DNS-over(D)TLS Privacy  . . .   9
   6.  Authentication in Strict DNS-over(D)TLS Privacy . . . . . . .   9
   7.  In Band Source of Domain Name: SRV Service Label  . . . . . .  10
   8.  Out of Band Sources of Domain Name  . . . . . . . . . . . . .  10
     8.1.  Full direct configuration . . . . . . . . . . . . . . . .  10
     8.2.  Direct configuration of name only . . . . . . . . . . . .  10
     8.3.  DHCP  . . . . . . . . . . . . . . . . . . . . . . . . . .  11
   9.  Credential Verification . . . . . . . . . . . . . . . . . . .  12
     9.1.  X.509 Certificate Based Authentication  . . . . . . . . .  12
     9.2.  DANE  . . . . . . . . . . . . . . . . . . . . . . . . . .  12
       9.2.1.  Direct DNS Lookup . . . . . . . . . . . . . . . . . .  13
       9.2.2.  TLS DNSSEC Chain extension  . . . . . . . . . . . . .  13
   10. Combined Credentials with SPKI Pinsets  . . . . . . . . . . .  14
   11. (D)TLS Protocol Profile . . . . . . . . . . . . . . . . . . .  14
   12. IANA Considerations . . . . . . . . . . . . . . . . . . . . .  15
   13. Security Considerations . . . . . . . . . . . . . . . . . . .  15
     13.1.  Counter-measures to DNS Traffic Analysis . . . . . . . .  15
   14. Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  16
   15. References  . . . . . . . . . . . . . . . . . . . . . . . . .  16
     15.1.  Normative References . . . . . . . . . . . . . . . . . .  16
     15.2.  Informative References . . . . . . . . . . . . . . . . .  17
   Appendix A.  Server capability probing and caching by DNS clients  19
   Appendix B.  Changes between revisions  . . . . . . . . . . . . .  19
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