Network Working Group
Internet Engineering Task Force (IETF)                         S. Martin
Internet Draft                                    University of Chicago
Intended status: Informational
Request for Comments: 7853                                     S. Tuecke
Expires: September 2016                           University of Chicago
Category: Informational                                      B. McCollam
                                                  University of Chicago
ISSN: 2070-1721                                                M. Lidman
                                                   University of Chicago
                                                         March 18,
                                                                May 2016

                       A URN Namespace for Globus
                        draft-martin-urn-globus-03

Abstract

   This document describes a URN (Uniform Resource Name) namespace that
   is to be
   used by Globus for naming persistent resources.

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Table of Contents

   1. Introduction...................................................2 Introduction .................................................. 2
   2. Specification Template.........................................3
      2.1. Namespace ID..............................................3
      2.2. Registration Information..................................3
      2.3. Declared Registrant of the Namespace......................3
      2.4. Declaration of the Syntactic Structure....................3
      2.5. Relevant Ancillary Documentation..........................4
      2.6. Identifier Uniqueness Considerations......................4
      2.7. Identifier Persistence Considerations.....................4
      2.8. Process of Identifier Assignment..........................4
      2.9. Process of Identifier Resolution..........................5
      2.10. Rules for Lexical Equivalence............................5
      2.11. Conformance with URN syntax..............................5
      2.12. Validation Mechanism.....................................5
      2.13. Scope....................................................5 Template ........................................ 3
   3. Examples (Informative).........................................5 (Informative) ........................................ 5
   4. Namespace Considerations.......................................6 Considerations ...................................... 5
   5. Community Considerations.......................................6 Considerations ...................................... 6
   6. Security Considerations........................................6 Considerations ....................................... 6
   7. IANA Considerations............................................6 Considerations ........................................... 6
   8. References.....................................................6
      8.1. Normative References......................................6
      8.2. Informative References....................................7
   9. Acknowledgments................................................7 References .......................................... 6
   Acknowledgments .................................................. 7
   Authors' Addresses ............................................... 7

1.  Introduction

   Globus (https://www.globus.org) is a software-as-a-service provider
   that develops and operates services and tools for the global research
   and education community.

   Globus provides multiple services for users across many institutions,
   primarily for High Performance Computing research driven
   research. by high-performance computing.  Globus
   creates unique identifiers which that will be persisted persist in external systems, systems and which
   must be identifiable as references to Globus entities.

   To address this need, this document requests that a formal URN space
   type be assigned as described in Section 4.3 of RFC 3406. [RFC3406].

2.  Specification Template

2.1. Namespace ID

   The

   Namespace ID "globus" is requested.

2.2. ID:

      globus

   Registration Information Information:

      Version 1
      Date: 2016-03-18

2.3.

   Declared Registrant of the Namespace Namespace:

      Globus Project Lead
      401 N Michigan Ave
      Suite 900
      Chicago, Illinois, 60611
      USA

      Email:  tuecke@globus.org

      The position of Globus Project Lead is currently filled by Steve
      Tuecke.

2.4.

   Declaration of the Syntactic Structure Structure:

      The Namespace Specific String (NSS) of all URNs that use the
      "globus" NID shall have the following structure:

      <URN> ::= "urn:" "globus" ":" <NSS>

      <NSS> ::= <SNID> | <SNID> ":" <subnamespace-specific-string>

      <SNID> ::= 1*<non-colon-chars>

      <subnamespace-specific-string> ::= 1*<URN chars>

      <non-colon-chars> ::= <non-colon-trans> | "%" <hex> <hex>

      <non-colon-trans> ::= <upper> | <lower> | <number> | <non-colon-
      other>

      <non-colon-other> ::= "(" | ")" | "+" | "," | "-" | "." | "=" |
                            "@" | ";" | "$" | "_" | "!" | "*" | "'"

      The "SNID" is the top-level segment of the NSS.  It is a required
      US-ASCII string, subject to the above syntax, that conforms to the
      URN syntax requirements (see [RFC 2141]). [RFC2141]).  It identifies a category
      of Globus entities, often associated with a particular Globus
      service.  For example "auth" could be used as an SNID for
      identifiers generated by the Globus authentication and
      authorization service (Globus Auth).

      The "subnamespace-specific-string" is an optional US-ASCII string
      and second-level segment of the NSS, belonging to the "SNID"
      context, subject to the above syntax and conformant to the URN
      syntax requirements (see [RFC 2141]).  "subnamespace-specific-string" [RFC2141]).  "subnamespace-specific-
      string" identifies a category of thing within that Globus service,
      such as "scope:transfer.api.globus.org:all"

2.5.

   Relevant Ancillary Documentation Documentation:

      None.

2.6.

   Identifier Uniqueness Considerations Considerations:

      Identifier uniqueness will be enforced by the Globus Project Lead.
      The Globus Project Lead may sub-delegate part of the namespace to
      third parties.  It will not be permissible, neither by the Globus
      Project Lead nor any third party, to re-assign reassign previously assigned
      URNs.  A practical consequence is that a previously assigned
      subnamespace cannot be re-assigned, reassigned, unless additional arrangements
      are made to prevent identifier re-assignements.

2.7. reassignments.

   Identifier Persistence Considerations Considerations:

      Identifiers will never be reassigned, but in some circumstances
      they may be invalidated by the Globus Project Lead or by a third
      party.

2.8.

   Process of Identifier Assignment Assignment:

      Assignment of subnamespace identifiers is limited to the Globus
      Project Lead and those authorities that are specifically
      designated by the Globus Project Lead.  The Globus Project Lead
      may assign portions of the globus namespace (specifically, those
      under designated subnamespace identifiers) for assignment by third
      parties.

2.9.

   Process of Identifier Resolution Resolution:

      None currently.

      Future versions of this document may define resources that can be
      used to resolve Globus identifiers.

2.10.

   Rules for Lexical Equivalence Equivalence:

      No additional rules beyond those specified in RFC2141.

2.11. RFC 2141.

   Conformance with URN syntax Syntax:

      No special considerations.

2.12.

   Validation Mechanism Mechanism:

      None currently.

      Future versions of this document may define resources that can be
      used to validate Globus identifiers.

2.13. Scope

   Scope:

      Global.

3.  Examples (Informative)

   The following examples are based on plans for the Globus URN.  They
   are therefore not guaranteed to be valid.

   The Globus Auth service defines the "auth" SNID, SNID and contains the
   following URNs. URNs:

   o  urn:globus:auth:scope:transfer.api.globus.org:all

   o  urn:globus:auth:grants:dependent_token

   A hypothetical service, the Globus Groups service, would have a
   distinct SNID.  If that SNID were "groups", it might have URNs such
   as the following. following:

   o  urn:globus:groups:group:669b572e-9de4-11e5-966e-3c970e0c9cc4

   o  urn:globus:groups:memberships:72e1c6c6-9de4-11e5-966e-
      3c970e0c9cc4  urn:globus:groups:memberships:72e1c6c6-9de4-11e5-966e-3c970e0c9cc4

4.  Namespace Considerations

   The current set of existing NAIA IANA namespaces are insufficient because
   Globus will be creating unique identifiers that will be persisted persist in the
   external system, and system; these identifiers must be identifiable as references
   to Globus entities.

   The use of the Globus namespace is expected to be broad, including
   but not limited to usage for:

   o  OAuth2 scopes (see [RFC 6749]) [RFC6749])

   o  OAuth2 custom extension grants

   o  Entity identification for Globus Services

5.  Community Considerations

   Members of the Globus community will benefit from persistent and
   globally unique identifiers for use in software and in conformance
   with protocols developed and used by Globus and third-party
   collaborators.

6.  Security Considerations

   There are no special meanings for characters in the NSS.  Thus, there
   are no additional security considerations other than those normally
   associated with the use and resolution of URNs in general, which are
   described in [RFC1737] and [RFC2141].

7.  IANA Considerations

   IANA is kindly requested to register has registered the "globus" namespace identifier (NID) into in the IANA
   "Formal URN Namespaces" registry located at
   <http://www.iana.org/assignments/urn-namespaces>
   <http://www.iana.org/assignments/urn-namespaces>.

8. References

8.1.  Normative References

   [RFC1737]  Sollins, K. and L. Masinter, "Functional Requirements for
              Uniform Resource Names", RFC 1737, DOI 10.17487/RFC1737,
              December 1994. 1994, <http://www.rfc-editor.org/info/rfc1737>.

   [RFC2141]  Moats, R., "URN Syntax", RFC 2141, DOI 10.17487/RFC2141,
              May 1997. 1997, <http://www.rfc-editor.org/info/rfc2141>.

   [RFC3406]  Daigle, L., van Gulik, D., Iannella, R., and P. Faltstrom,
              "Uniform Resource Names (URN) Namespace Definition
              Mechanisms", BCP 66, RFC 3406, DOI 10.17487/RFC3406,
              October 2002, <http://www.rfc-editor.org/info/rfc3406>.

   [RFC6749]  Hardt, D., Ed., "The OAuth 2.0 Authorization Framework",
              RFC 6749, DOI 10.17487/RFC6749, October 2012.

8.2. Informative References

   None.

9. 2012,
              <http://www.rfc-editor.org/info/rfc6749>.

Acknowledgments

   The authors would like to thank Stephen Rosen and Vas Vasiliadis for
   proofreading this document and providing valuable feedback.

   This document was prepared using 2-Word-v2.0.template.dot.

Authors' Addresses

   Stuart Martin
   University of Chicago
   401 N Michigan Ave
   Suite 900
   Chicago, Illinois, 60611
   USA
   United States

   Email: sjmartin@uchicago.edu

   Steve Tuecke
   University of Chicago
   401 N Michigan Ave
   Suite 900
   Chicago, Illinois, 60611
   USA
   United States

   Email: tuecke@globus.org

   Brendan McCollam
   University of Chicago
   401 N Michigan Ave
   Suite 900
   Chicago, Illinois, 60611
   USA
   United States

   Email: bmccollam@uchicago.edu

   Mattias Lidman
   University of Chicago
   401 N Michigan Ave
   Suite 900
   Chicago, Illinois, 60611
   USA
   United States

   Email: mattias@uchicago.edu