Authentication and (D)TLS Profile for DNS-over-(D)TLS
draft-ietf-dprive-dtls-and-tls-profiles-08

Document Type Active Internet-Draft (dprive WG)
Last updated 2017-03-02 (latest revision 2017-01-18)
Replaces draft-dgr-dprive-dtls-and-tls-profiles
Stream IETF
Intended RFC status Proposed Standard
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dprive                                                      S. Dickinson
Internet-Draft                                                   Sinodun
Intended status: Standards Track                              D. Gillmor
Expires: July 22, 2017                                              ACLU
                                                                T. Reddy
                                                                   Cisco
                                                        January 18, 2017

         Authentication and (D)TLS Profile for DNS-over-(D)TLS
               draft-ietf-dprive-dtls-and-tls-profiles-08

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).  This document also
   specifies new authentication mechanisms - it describes several ways a
   DNS client can use an authentication domain name to authenticate a
   DNS server.  Additionally, it defines (D)TLS profiles for DNS clients
   and servers implementing DNS-over-(D)TLS.

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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   Drafts is at http://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
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   time.  It is inappropriate to use Internet-Drafts as reference
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   This Internet-Draft will expire on July 22, 2017.

Copyright Notice

   Copyright (c) 2017 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
   (http://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents

Dickinson, et al.         Expires July 22, 2017                 [Page 1]
Internet-Draft            (D)TLS Authentication             January 2017

   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 . . . . . . . . . . . . . . . . . . . . . . . . .   4
   3.  Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . .   6
   4.  Discussion  . . . . . . . . . . . . . . . . . . . . . . . . .   6
   5.  Usage Profiles  . . . . . . . . . . . . . . . . . . . . . . .   7
     5.1.  DNS Resolution  . . . . . . . . . . . . . . . . . . . . .   9
   6.  Authentication in DNS-over(D)TLS  . . . . . . . . . . . . . .   9
     6.1.  DNS-over-(D)TLS Startup Configuration Problems  . . . . .   9
     6.2.  Credential Verification . . . . . . . . . . . . . . . . .  10
     6.3.  Summary of Authentication Mechanisms  . . . . . . . . . .  10
     6.4.  Combining Authentication Mechanisms . . . . . . . . . . .  13
     6.5.  Authentication in Opportunistic Privacy . . . . . . . . .  13
     6.6.  Authentication in Strict Privacy  . . . . . . . . . . . .  13
     6.7.  Implementation guidance . . . . . . . . . . . . . . . . .  14
   7.  Sources of Authentication Domain Names  . . . . . . . . . . .  14
     7.1.  In Band Sources: SRV Service Label  . . . . . . . . . . .  14
     7.2.  Out of Band Sources . . . . . . . . . . . . . . . . . . .  15
       7.2.1.  Full direct configuration . . . . . . . . . . . . . .  15
       7.2.2.  Direct configuration of name only . . . . . . . . . .  15
       7.2.3.  DHCP  . . . . . . . . . . . . . . . . . . . . . . . .  16
   8.  Authentication Domain Name based Credential Verification  . .  16
     8.1.  PKIX Certificate Based Authentication . . . . . . . . . .  16
     8.2.  DANE  . . . . . . . . . . . . . . . . . . . . . . . . . .  17
       8.2.1.  Direct DNS Lookup . . . . . . . . . . . . . . . . . .  18
       8.2.2.  TLS DNSSEC Chain extension  . . . . . . . . . . . . .  18
   9.  (D)TLS Protocol Profile . . . . . . . . . . . . . . . . . . .  18
   10. IANA Considerations . . . . . . . . . . . . . . . . . . . . .  19
   11. Security Considerations . . . . . . . . . . . . . . . . . . .  19
     11.1.  Counter-measures to DNS Traffic Analysis . . . . . . . .  19
   12. Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  20
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