Network Working Group                                           J. Gould
Internet-Draft                                            VeriSign, Inc.
Intended status: Standards Track                            S. Wodjenski
Expires: December 25, 2017                                       Neustar
                                                           June 23, 2017


  Allocation Token Extension for the Extensible Provisioning Protocol
                                 (EPP)
                 draft-ietf-regext-allocation-token-02

Abstract

   This document describes an Extensible Provisioning Protocol (EPP)
   extension for including an allocation token or code for allocating an
   object like a domain name to the client.  The allocation token MAY be
   transferred out-of-band to a client to give them authorization to
   allocate an object using one of the EPP transform commands including
   create, update, and transfer.

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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   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 25, 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
   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this document must



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   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  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Conventions Used in This Document . . . . . . . . . . . .   3
   2.  Object Attributes . . . . . . . . . . . . . . . . . . . . . .   3
     2.1.  Allocation Token  . . . . . . . . . . . . . . . . . . . .   3
   3.  EPP Command Mapping . . . . . . . . . . . . . . . . . . . . .   4
     3.1.  EPP Query Commands  . . . . . . . . . . . . . . . . . . .   4
       3.1.1.  EPP <check> Command . . . . . . . . . . . . . . . . .   4
       3.1.2.  EPP <info> Command  . . . . . . . . . . . . . . . . .   8
       3.1.3.  EPP <transfer> Command  . . . . . . . . . . . . . . .  10
     3.2.  EPP Transform Commands  . . . . . . . . . . . . . . . . .  11
       3.2.1.  EPP <create> Command  . . . . . . . . . . . . . . . .  11
       3.2.2.  EPP <delete> Command  . . . . . . . . . . . . . . . .  12
       3.2.3.  EPP <renew> Command . . . . . . . . . . . . . . . . .  12
       3.2.4.  EPP <transfer> Command  . . . . . . . . . . . . . . .  12
       3.2.5.  EPP <update> Command  . . . . . . . . . . . . . . . .  13
   4.  Formal Syntax . . . . . . . . . . . . . . . . . . . . . . . .  14
     4.1.  Allocation Token Extension Schema . . . . . . . . . . . .  15
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  15
     5.1.  XML Namespace . . . . . . . . . . . . . . . . . . . . . .  15
     5.2.  EPP Extension Registry  . . . . . . . . . . . . . . . . .  16
   6.  Implementation Status . . . . . . . . . . . . . . . . . . . .  16
     6.1.  Verisign EPP SDK  . . . . . . . . . . . . . . . . . . . .  17
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .  17
   8.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  17
   9.  Normative References  . . . . . . . . . . . . . . . . . . . .  17
   Appendix A.  Change History . . . . . . . . . . . . . . . . . . .  18
     A.1.  Change from 00 to 01  . . . . . . . . . . . . . . . . . .  18
     A.2.  Change from 01 to 02  . . . . . . . . . . . . . . . . . .  18
     A.3.  Change from 02 to 03  . . . . . . . . . . . . . . . . . .  18
     A.4.  Change from 03 to 04  . . . . . . . . . . . . . . . . . .  18
     A.5.  Change from 04 to REGEXT 00 . . . . . . . . . . . . . . .  18
     A.6.  Change from REGEXT 00 to REGEXT 01  . . . . . . . . . . .  19
     A.7.  Change from REGEXT 01 to REGEXT 02  . . . . . . . . . . .  19
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  19

1.  Introduction

   This document describes an extension mapping for version 1.0 of the
   Extensible Provisioning Protocol (EPP) [RFC5730].  This mapping, an
   extension to EPP object mappings like the EPP domain name mapping
   [RFC5731], for passing an allocation token one of the EPP transform
   commands including create, update, and transfer.  The allocation



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   token is known to the server to authorize a client that passes a
   matching allocation token with one of the supported EPP transform
   commands.  It is up to server policy which EPP transform commands and
   which objects support the allocation token.  The allocation token MAY
   be returned to an authorized client for passing out-of-band to a
   client that uses it with an EPP transform command.

1.1.  Conventions Used in This Document

   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 RFC 2119 [RFC2119].

   XML is case sensitive.  Unless stated otherwise, XML specifications
   and examples provided in this document MUST be interpreted in the
   character case presented in order to develop a conforming
   implementation.

   In examples, "C:" represents lines sent by a protocol client and "S:"
   represents lines returned by a protocol server.  Indentation and
   white space in examples are provided only to illustrate element
   relationships and are not a REQUIRED feature of this protocol.

   "allocationToken-1.0" is used as an abbreviation for
   "urn:ietf:params:xml:ns:allocationToken-1.0".  The XML namespace
   prefix "allocationToken" is used, but implementations MUST NOT depend
   on it and instead employ a proper namespace-aware XML parser and
   serializer to interpret and output the XML documents.

2.  Object Attributes

   This extension adds additional elements to EPP object mappings like
   the EPP domain name mapping [RFC5731].  Only those new elements are
   described here.

2.1.  Allocation Token

   The Allocation Token is a simple XML "token" type.  The exact format
   of the Allocation Token is up to server policy.  The server MUST have
   the allocation token for each object to match against the allocation
   token passed by the client to authorize the allocation of the object.
   The same <allocationToken:allocationToken> element is used for all of
   the supported EPP transform commands as well as the info response.
   If an invalid allocation token is passed the server MUST return an
   EPP error result code of 2201.






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   An example <allocationToken:allocationToken> element with value of
   "abc123":

   <allocationToken:allocationToken xmlns:allocationToken=
             "urn:ietf:params:xml:ns:allocationToken-1.0">
     abc123
   </allocationToken:allocationToken>

3.  EPP Command Mapping

   A detailed description of the EPP syntax and semantics can be found
   in the EPP core protocol specification [RFC5730].

3.1.  EPP Query Commands

   EPP provides three commands to retrieve object information: <check>
   to determine if an object is known to the server, <info> to retrieve
   detailed information associated with an object, and <transfer> to
   retrieve object transfer status information.

3.1.1.  EPP <check> Command

   This extension defines additional elements to extend the EPP <check>
   command of an object mapping like [RFC5731].

   This extension allow clients to check the availability of an object
   with an allocation token, as described in Section 2.1.  Clients can
   check if an object can be created using the allocation token.  The
   allocation token is applied to all object names included in the EPP
   <check> command.





















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   Example <check> command for the example.tld domain name using the
   <allocationToken:allocationToken> extension with the allocation token
   of 'abc123':

   C:<?xml version="1.0" encoding="UTF-8" standalone="no"?>
   C:<epp xmlns="urn:ietf:params:xml:ns:epp-1.0">
   C:  <command>
   C:    <check>
   C:      <domain:check
   C:       xmlns:domain="urn:ietf:params:xml:ns:domain-1.0">
   C:        <domain:name>example.tld</domain:name>
   C:      </domain:check>
   C:    </check>
   C:    <extension>
   C:      <allocationToken:allocationToken
   C:        xmlns:allocationToken=
   C:          "urn:ietf:params:xml:ns:allocationToken-1.0">
   C:        abc123
   C:      </allocationToken:allocationToken>
   C:    </extension>
   C:    <clTRID>ABC-12345</clTRID>
   C:  </command>
   C:</epp>

   If the query was successful, the server replies with an <check>
   response providing availability status of queried object.

























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   Example <check> domain response for a <check> command using the
   <allocationToken:allocationToken> extension:


   S:<?xml version="1.0" encoding="UTF-8"?>
   S:<epp xmlns="urn:ietf:params:xml:ns:epp-1.0">
   S: <response>
   S:  <result code="1000">
   S:   <msg lang="en-US">Command completed successfully</msg>
   S:  </result>
   S:  <resData>
   S:   <domain:chkData
   S:     xmlns:domain="urn:ietf:params:xml:ns:domain-1.0">
   S:    <domain:cd>
   S:     <domain:name avail="0">example.tld</domain:name>
   S:     <domain:reason>Invalid domain-token pair</domain:reason>
   S:    </domain:cd>
   S:   </domain:chkData>
   S:  </resData>
   S:  <trID>
   S:   <clTRID>ABC-DEF-12345</clTRID>
   S:   <svTRID>54321-XYZ</svTRID>
   S:  </trID>
   S: </response>
   S:</epp>


























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   Example <check> command with the <allocationToken:allocationToken>
   extension for the example.tld and example2.tld domain names.
   Availability of example.tld and example2.tld domain names are based
   on the allocation token 'abc123':


   C:<?xml version="1.0" encoding="UTF-8"?>
   C:<epp xmlns="urn:ietf:params:xml:ns:epp-1.0">
   C: <command>
   C:  <check>
   C:   <domain:check
   C:     xmlns:domain="urn:ietf:params:xml:ns:domain-1.0">
   C:    <domain:name>example.tld</domain:name>
   C:    <domain:name>example2.tld</domain:name>
   C:   </domain:check>
   C:  </check>
   C:  <extension>
   C:   <allocationToken:allocationToken
   C:     xmlns:allocationToken=
   C:       "urn:ietf:params:xml:ns:allocationToken-1.0">
   C:     abc123
   C:   </allocationToken:allocationToken>
   C:  </extension>
   C:  <clTRID>ABC-DEF-12345</clTRID>
   C: </command>
   C:</epp>

























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   Example <check> domain response for multiple domain names in the
   <check> command using the <allocationToken:allocationToken>
   extension:


   S:<?xml version="1.0" encoding="UTF-8"?>
   S:<epp xmlns="urn:ietf:params:xml:ns:epp-1.0">
   S: <response>
   S:  <result code="1000">
   S:   <msg lang="en-US">Command completed successfully</msg>
   S:  </result>
   S:  <resData>
   S:   <domain:chkData
   S:     xmlns:domain="urn:ietf:params:xml:ns:domain-1.0">
   S:    <domain:cd>
   S:     <domain:name avail="0">example.tld</domain:name>
   S:     <domain:reason>Invalid domain-token pair</domain:reason>
   S:    </domain:cd>
   S:    <domain:cd>
   S:     <domain:name avail="1">example2.tld</domain:name>
   S:    </domain:cd>
   S:   </domain:chkData>
   S:  </resData>
   S:  <trID>
   S:   <clTRID>ABC-DEF-12345</clTRID>
   S:   <svTRID>54321-XYZ</svTRID>
   S:  </trID>
   S: </response>
   S:</epp>

   This extension does not add any elements to the EPP <check> response
   described in the [RFC5730].

3.1.2.  EPP <info> Command

   This extension defines additional elements to extend the EPP <info>
   command of an object mapping like [RFC5731].

   The EPP <info> command allows a client to request information on an
   existing object.  Authorized clients MAY retrieve the allocation
   token (Section 2.1) along with the other object information using the
   <allocationToken:info> element that identifies the extension
   namespace.  The <allocationToken:info> element is an empty element
   that serves as a marker to the server to return the
   <allocationToken:allocationToken> element, defined in Section 2.1, in
   the info response.  If the client is not authorized to receive the
   allocation token (Section 2.1), the server MUST return an EPP error
   result code of 2201.  If the client is authorized to receive the



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   allocation token (Section 2.1), but there is no allocation token
   (Section 2.1) associated with the object, the server MUST return an
   EPP error result code of 2303 object referencing the
   <allocationToken:info> element.

   Example <info> command with the allocationToken:info extension for
   the example.tld domain name:

   C:<?xml version="1.0" encoding="UTF-8" standalone="no"?>
   C:<epp xmlns="urn:ietf:params:xml:ns:epp-1.0">
   C:  <command>
   C:   <info>
   C:    <domain:info
   C:      xmlns:domain="urn:ietf:params:xml:ns:domain-1.0"
   C:      xsi:schemaLocation="urn:ietf:params:xml:ns:domain-1.0
   C:      domain-1.0.xsd">
   C:      <domain:name>example.tld</domain:name>
   C:    </domain:info>
   C:   </info>
   C:   <extension>
   C:      <allocationToken:info
   C:        xmlns:allocationToken=
   C:          "urn:ietf:params:xml:ns:allocationToken-1.0/>
   C:   </extension>
   C:   <clTRID>ABC-12345</clTRID>
   C:  </command>
   C:</epp>

   If the query was successful, the server replies with an
   <allocationToken:allocationToken> element, as described in
   Section 2.1.




















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   Example <info> domain response using the
   <allocationToken:allocationToken> extension:

   S:<?xml version="1.0" encoding="UTF-8" standalone="no"?>
   S:<epp xmlns="urn:ietf:params:xml:ns:epp-1.0">
   S:  <response>
   S:    <result code="1000">
   S:      <msg>Command completed successfully</msg>
   S:    </result>
   S:    <resData>
   S:      <domain:infData
   S:       xmlns:domain="urn:ietf:params:xml:ns:domain-1.0">
   S:        <domain:name>example.tld</domain:name>
   S:        <domain:roid>EXAMPLE1-REP</domain:roid>
   S:        <domain:status s="pendingCreate"/>
   S:        <domain:registrant>jd1234</domain:registrant>
   S:        <domain:contact type="admin">sh8013</domain:contact>
   S:        <domain:contact type="tech">sh8013</domain:contact>
   S:        <domain:clID>ClientX</domain:clID>
   S:        <domain:crID>ClientY</domain:crID>
   S:        <domain:crDate>2012-04-03T22:00:00.0Z</domain:crDate>
   S:        <domain:authInfo>
   S:          <domain:pw>2fooBAR</domain:pw>
   S:        </domain:authInfo>
   S:      </domain:infData>
   S:    </resData>
   S:    <extension>
   S:      <allocationToken:allocationToken
   S:        xmlns:allocationToken=
   S:          "urn:ietf:params:xml:ns:allocationToken-1.0">
   S:        abc123
   S:      </allocationToken:allocationToken>
   S:    </extension>
   S:    <trID>
   S:      <clTRID>ABC-12345</clTRID>
   S:      <svTRID>54321-XYZ</svTRID>
   S:    </trID>
   S:  </response>
   S:</epp>

3.1.3.  EPP <transfer> Command

   This extension does not add any elements to the EPP <transfer> query
   command or <transfer> response described in the [RFC5730].







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3.2.  EPP Transform Commands

   EPP provides five commands to transform objects: <create> to create
   an instance of an object, <delete> to delete an instance of an
   object, <renew> to extend the validity period of an object,
   <transfer> to manage object sponsorship changes, and <update> to
   change information associated with an object.

3.2.1.  EPP <create> Command

   This extension defines additional elements to extend the EPP <create>
   command of an object mapping like [RFC5731].

   The EPP <create> command provides a transform operation that allows a
   client to create an object.  In addition to the EPP command elements
   described in an object mapping like [RFC5731], the command MUST
   contain a child <allocationToken:allocationToken> element, as defined
   in Section 2.1, that identifies the extension namespace for the
   client to be authorized to create and allocate the object.  If the
   allocation token (Section 2.1) does not match the object's allocation
   token (Section 2.1), the server MUST return an EPP error result code
   of 2201.:





























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   Example <create> command to create a domain object with an allocation
   token:

   C:<?xml version="1.0" encoding="UTF-8" standalone="no"?>
   C:<epp xmlns="urn:ietf:params:xml:ns:epp-1.0">
   C:  <command>
   C:    <create>
   C:      <domain:create
   C:       xmlns:domain="urn:ietf:params:xml:ns:domain-1.0">
   C:        <domain:name>example.tld</domain:name>
   C:        <domain:registrant>jd1234</domain:registrant>
   C:        <domain:contact type="admin">sh8013</domain:contact>
   C:        <domain:contact type="tech">sh8013</domain:contact>
   C:        <domain:authInfo>
   C:          <domain:pw>2fooBAR</domain:pw>
   C:        </domain:authInfo>
   C:      </domain:create>
   C:    </create>
   C:    <extension>
   C:      <allocationToken:allocationToken
   C:        xmlns:allocationToken=
   C:          "urn:ietf:params:xml:ns:allocationToken-1.0">
   C:        abc123
   C:      </allocationToken:allocationToken>
   C:    </extension>
   C:    <clTRID>ABC-12345</clTRID>
   C:  </command>
   C:</epp>

   This extension does not add any elements to the EPP <create> response
   described in the [RFC5730].

3.2.2.  EPP <delete> Command

   This extension does not add any elements to the EPP <delete> command
   or <delete> response described in the [RFC5730].

3.2.3.  EPP <renew> Command

   This extension does not add any elements to the EPP <renew> command
   or <renew> response described in the [RFC5730].

3.2.4.  EPP <transfer> Command

   This extension defines additional elements to extend the EPP
   <transfer> request command of an object mapping like [RFC5731].





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   The EPP <transfer> request command provides a transform operation
   that allows a client to request the transfer of an object.  In
   addition to the EPP command elements described in an object mapping
   like [RFC5731], the command MUST contain a child
   <allocationToken:allocationToken> element, as defined in Section 2.1,
   that identifies the extension namespace for the client to be
   authorized to transfer and allocate the object.  If the allocation
   token (Section 2.1) does not match the object's allocation token
   (Section 2.1), the server MUST return an EPP error result code of
   2201.:

   Example <transfer> request command to allocate the domain object with
   the allocation token:

   C:<?xml version="1.0" encoding="UTF-8" standalone="no"?>
   C:<epp xmlns="urn:ietf:params:xml:ns:epp-1.0">
   C:  <command>
   C:    <transfer op="request">
   C:      <domain:transfer
   C:        xmlns:domain="urn:ietf:params:xml:ns:domain-1.0">
   C:        <domain:name>example1.tld</domain:name>
   C:        <domain:period unit="y">1</domain:period>
   C:        <domain:authInfo>
   C:          <domain:pw>2fooBAR</domain:pw>
   C:        </domain:authInfo>
   C:      </domain:transfer>
   C:    </transfer>
   C:    <extension>
   C:      <allocationToken:allocationToken
   C:        xmlns:allocationToken=
   C:          "urn:ietf:params:xml:ns:allocationToken-1.0">
   C:        abc123
   C:      </allocationToken:allocationToken>
   C:    </extension>
   C:    <clTRID>ABC-12345</clTRID>
   C:  </command>
   C:</epp>

   This extension does not add any elements to the EPP <transfer>
   response described in the [RFC5730].

3.2.5.  EPP <update> Command

   This extension defines additional elements to extend an extension of
   an empty EPP <update> command of an object mapping like [RFC5731].
   An example of an extension of an empty EPP <update> command is the
   definition of the restore command within [RFC3915].




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   An extension of an empty EPP <update> command defines a new verb that
   transforms an object.  In addition to the EPP command elements
   described in an object mapping like [RFC5731], the command MUST
   contain a child <allocationToken:allocationToken> element, as defined
   in Section 2.1, that identifies the extension namespace for the
   client to be authorized to allocate the object.  If the allocation
   token (Section 2.1) does not match the object's allocation token
   (Section 2.1), the server MUST return an EPP error result code of
   2201.:

   Example use an extension of an empty <update> command to release a
   domain object with an allocation token:

   C:<?xml version="1.0" encoding="UTF-8" standalone="no"?>
   C:<epp xmlns="urn:ietf:params:xml:ns:epp-1.0">
   C:  <command>
   C:    <update>
   C:      <domain:update
   C:        xmlns:domain="urn:ietf:params:xml:ns:domain-1.0">
   C:        <domain:name>example1.tld</domain:name>
   C:      </domain:update>
   C:    </update>
   C:    <extension>
   C:      <release:release
   C:        xmlns:release="urn:ietf:params:xml:ns:release-1.0"/>
   C:      <allocationToken:allocationToken
   C:        xmlns:allocationToken=
   C:          "urn:ietf:params:xml:ns:allocationToken-1.0">
   C:        abc123
   C:      </allocationToken:allocationToken>
   C:    </extension>
   C:    <clTRID>ABC-12345-XYZ</clTRID>
   C:  </command>
   C:</epp>

   This extension does not add any elements to the EPP <update> response
   described in the [RFC5730].

4.  Formal Syntax

   One schema is presented here that is the EPP Allocation Token
   Extension schema.

   The formal syntax presented here is a complete schema representation
   of the object mapping suitable for automated validation of EPP XML
   instances.  The BEGIN and END tags are not part of the schema; they
   are used to note the beginning and ending of the schema for URI
   registration purposes.



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4.1.  Allocation Token Extension Schema

   BEGIN
   <?xml version="1.0" encoding="UTF-8"?>

   <schema targetNamespace="urn:ietf:params:xml:ns:allocationToken-1.0"
     xmlns:allocationToken="urn:ietf:params:xml:ns:allocationToken-1.0"
     xmlns="http://www.w3.org/2001/XMLSchema"
     elementFormDefault="qualified">

     <annotation>
       <documentation>
         Extensible Provisioning Protocol v1.0
         Allocation Token Extension.
       </documentation>
     </annotation>

     <!-- Element used in info command to get allocation token. -->
     <element name="info"/>

     <!-- Allocation Token used in transform
     commands and info response -->
     <element name="allocationToken"
       type="allocationToken:allocationTokenType"/>

      <complexType name="allocationTokenType">
       <simpleContent>
         <extension base="token"/>
       </simpleContent>
     </complexType>

      <!-- End of schema.-->
   </schema>
   END

5.  IANA Considerations

5.1.  XML Namespace

   This document uses URNs to describe XML namespaces and XML schemas
   conforming to a registry mechanism described in [RFC3688].  The
   following URI assignment is requested of IANA:

   URI: ietf:params:xml:ns:allocationToken-1.0

   Registrant Contact: See the "Author's Address" section of this
   document.




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   XML: See the "Formal Syntax" section of this document.

5.2.  EPP Extension Registry

   The EPP extension described in this document should be registered by
   the IANA in the EPP Extension Registry described in [RFC7451].  The
   details of the registration are as follows:

   Name of Extension: "Allocation Token Extension for the Extensible
   Provisioning Protocol (EPP)"

   Document status: Standards Track

   Reference: (insert reference to RFC version of this document)

   Registrant Name and Email Address: IESG, <iesg@ietf.org>

   TLDs: Any

   IPR Disclosure: None

   Status: Active

   Notes: None

6.  Implementation Status

   Note to RFC Editor: Please remove this section and the reference to
   RFC 6982 [RFC6982] before publication.

   This section records the status of known implementations of the
   protocol defined by this specification at the time of posting of this
   Internet-Draft, and is based on a proposal described in RFC 6982
   [RFC6982].  The description of implementations in this section is
   intended to assist the IETF in its decision processes in progressing
   drafts to RFCs.  Please note that the listing of any individual
   implementation here does not imply endorsement by the IETF.
   Furthermore, no effort has been spent to verify the information
   presented here that was supplied by IETF contributors.  This is not
   intended as, and must not be construed to be, a catalog of available
   implementations or their features.  Readers are advised to note that
   other implementations may exist.

   According to RFC 6982 [RFC6982], "this will allow reviewers and
   working groups to assign due consideration to documents that have the
   benefit of running code, which may serve as evidence of valuable
   experimentation and feedback that have made the implemented protocols




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   more mature.  It is up to the individual working groups to use this
   information as they see fit".

6.1.  Verisign EPP SDK

   Organization: Verisign Inc.

   Name: Verisign EPP SDK

   Description: The Verisign EPP SDK includes both a full client
   implementation and a full server stub implementation of draft-ietf-
   regext-allocation-token.

   Level of maturity: Production

   Coverage: All aspects of the protocol are implemented.

   Licensing: GNU Lesser General Public License

   Contact: jgould@verisign.com

   URL: https://www.verisign.com/en_US/channel-resources/domain-
   registry-products/epp-sdks

7.  Security Considerations

   The mapping extensions described in this document do not provide any
   security services beyond those described by EPP [RFC5730] and
   protocol layers used by EPP.  The security considerations described
   in these other specifications apply to this specification as well.

8.  Acknowledgements

   The authors wish to acknowledge the original concept for this draft
   and the efforts in the initial versions of this draft by Trung Tran.

9.  Normative References

   [RFC2119]  Bradner, S., "Key words for use in RFCs to Indicate
              Requirement Levels", BCP 14, RFC 2119,
              DOI 10.17487/RFC2119, March 1997,
              <http://www.rfc-editor.org/info/rfc2119>.

   [RFC3688]  Mealling, M., "The IETF XML Registry", BCP 81, RFC 3688,
              DOI 10.17487/RFC3688, January 2004,
              <http://www.rfc-editor.org/info/rfc3688>.





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   [RFC3915]  Hollenbeck, S., "Domain Registry Grace Period Mapping for
              the Extensible Provisioning Protocol (EPP)", RFC 3915,
              DOI 10.17487/RFC3915, September 2004,
              <http://www.rfc-editor.org/info/rfc3915>.

   [RFC5730]  Hollenbeck, S., "Extensible Provisioning Protocol (EPP)",
              STD 69, RFC 5730, DOI 10.17487/RFC5730, August 2009,
              <http://www.rfc-editor.org/info/rfc5730>.

   [RFC5731]  Hollenbeck, S., "Extensible Provisioning Protocol (EPP)
              Domain Name Mapping", STD 69, RFC 5731,
              DOI 10.17487/RFC5731, August 2009,
              <http://www.rfc-editor.org/info/rfc5731>.

   [RFC6982]  Sheffer, Y. and A. Farrel, "Improving Awareness of Running
              Code: The Implementation Status Section", RFC 6982,
              DOI 10.17487/RFC6982, July 2013,
              <http://www.rfc-editor.org/info/rfc6982>.

   [RFC7451]  Hollenbeck, S., "Extension Registry for the Extensible
              Provisioning Protocol", RFC 7451, DOI 10.17487/RFC7451,
              February 2015, <http://www.rfc-editor.org/info/rfc7451>.

Appendix A.  Change History

A.1.  Change from 00 to 01

   1.  Amended XML Namespace section of IANA Considerations, added EPP
       Extension Registry section.
   2.  Moved Change History to the back section as an Appendix.

A.2.  Change from 01 to 02

   1.  Ping update.

A.3.  Change from 02 to 03

   1.  Ping update.

A.4.  Change from 03 to 04

   1.  Updated the authors for the draft.

A.5.  Change from 04 to REGEXT 00

   1.  Changed to regext working group draft by changing draft-gould-
       allocation-token to draft-ietf-regext-allocation-token.




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A.6.  Change from REGEXT 00 to REGEXT 01

   1.  Ping update.

A.7.  Change from REGEXT 01 to REGEXT 02

   1.  Added the Implementation Status section.

Authors' Addresses

   James Gould
   VeriSign, Inc.
   12061 Bluemont Way
   Reston, VA  20190
   US

   Email: jgould@verisign.com
   URI:   http://www.verisigninc.com


   Sharon Wodjenski
   Neustar
   21575 Ridgetop Circle
   Sterling, VA  20166
   US

   Email: Sharon.Wodjenski@neustar.biz
   URI:   http://www.neustar.biz























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