The .onion Special-Use Domain Name
draft-ietf-dnsop-onion-tld-00

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Last updated 2015-09-03 (latest revision 2015-06-20)
Replaces draft-appelbaum-dnsop-onion-tld
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dnsop                                                       J. Appelbaum
Internet-Draft                                      The Tor Project, Inc
Intended status: Standards Track                              A. Muffett
Expires: December 21, 2015                                      Facebook
                                                           June 19, 2015

                   The .onion Special-Use Domain Name
                     draft-ietf-dnsop-onion-tld-00

Abstract

   This document registers the ".onion" Special-Use Domain Name.

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/.

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   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 December 21, 2015.

Copyright Notice

   Copyright (c) 2015 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
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   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Notational Conventions  . . . . . . . . . . . . . . . . .   2
   2.  The ".onion" Special-Use Domain Name  . . . . . . . . . . . .   2
   3.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   3
   4.  Security Considerations . . . . . . . . . . . . . . . . . . .   3
   5.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   4
     5.1.  Normative References  . . . . . . . . . . . . . . . . . .   5
     5.2.  Informative References  . . . . . . . . . . . . . . . . .   5
   Appendix A.  Acknowledgements . . . . . . . . . . . . . . . . . .   5
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   6

1.  Introduction

   The Tor network [Dingledine2004] has the ability to host network
   services using the ".onion" Special-Use Top-Level Domain.  Such
   addresses can be used as other domain names would be (e.g., in URLs
   [RFC3986]), but instead of using the DNS infrastructure, .onion names
   functionally correspond to the identity of a given service, thereby
   combining location and authentication.

   In this way, .onion names are "special" in the sense defined by
   [RFC6761] Section 3; they require hardware and software
   implementations to change their handling, in order to achieve the
   desired properties of the name (see Section 4).  These differences
   are listed in Section 2.

   Like Top-Level Domain Names, .onion addresses can have an arbitrary
   number of subdomain components.  This information is not meaningful
   to the Tor protocol, but can be used in application protocols like
   HTTP [RFC7230].

   See [tor-address] and [tor-rendezvous] for the details of the
   creation and use of .onion names.

1.1.  Notational Conventions

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in [RFC2119].

2.  The ".onion" Special-Use Domain Name

   These properties have the following effects upon parties using or
   processing .onion names (as per [RFC6761]):

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   1.  Users: human users are expected to recognize .onion names as
       having different security properties, and also being only
       available through software that is aware of onion addresses.

   2.  Application Software: Applications (including proxies) that
       implement the Tor protocol MUST recognize .onion names as special
       by either accessing them directly, or using a proxy (e.g., SOCKS
       [RFC1928]) to do so.  Applications that do not implement the Tor
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