A Usage for Shared Resources in RELOAD (ShaRe)
RFC 8076

Document Type RFC - Proposed Standard (March 2017; No errata)
Last updated 2017-03-22
Replaces draft-knauf-p2psip-share
Stream IETF
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Stream WG state Submitted to IESG for Publication
Document shepherd Marc Petit-Huguenin
Shepherd write-up Show (last changed 2016-01-03)
IESG IESG state RFC 8076 (Proposed Standard)
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Responsible AD Alissa Cooper
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IANA IANA review state Version Changed - Review Needed
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Internet Engineering Task Force (IETF)                          A. Knauf
Request for Comments: 8076                               T. Schmidt, Ed.
Category: Standards Track                                    HAW Hamburg
ISSN: 2070-1721                                                  G. Hege
                                                             daviko GmbH
                                                            M. Waehlisch
                                                    link-lab & FU Berlin
                                                              March 2017

             A Usage for Shared Resources in RELOAD (ShaRe)

Abstract

   This document defines a REsource LOcation And Discovery (RELOAD)
   Usage for managing shared write access to RELOAD Resources.  Shared
   Resources in RELOAD (ShaRe) form a basic primitive for enabling
   various coordination and notification schemes among distributed
   peers.  Access in ShaRe is controlled by a hierarchical trust
   delegation scheme maintained within an access list.  A new
   USER-CHAIN-ACL access policy allows authorized peers to write a
   Shared Resource without owning its corresponding certificate.  This
   specification also adds mechanisms to store Resources with a variable
   name that is useful whenever peer-independent rendezvous processes
   are required.

Status of This Memo

   This is an Internet Standards Track document.

   This document is a product of the Internet Engineering Task Force
   (IETF).  It represents the consensus of the IETF community.  It has
   received public review and has been approved for publication by the
   Internet Engineering Steering Group (IESG).  Further information on
   Internet Standards is available in Section 2 of RFC 7841.

   Information about the current status of this document, any errata,
   and how to provide feedback on it may be obtained at
   http://www.rfc-editor.org/info/rfc8076.

Knauf, et al.                Standards Track                    [Page 1]
RFC 8076                          ShaRe                       March 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
   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.

Knauf, et al.                Standards Track                    [Page 2]
RFC 8076                          ShaRe                       March 2017

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   4
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   5
   3.  Shared Resources in RELOAD  . . . . . . . . . . . . . . . . .   5
     3.1.  Mechanisms for Isolating Stored Data  . . . . . . . . . .   6
   4.  Access Control List Definition  . . . . . . . . . . . . . . .   7
     4.1.  Overview  . . . . . . . . . . . . . . . . . . . . . . . .   7
     4.2.  Data Structure  . . . . . . . . . . . . . . . . . . . . .   9
   5.  Extension for Variable Resource Names . . . . . . . . . . . .  10
     5.1.  Overview  . . . . . . . . . . . . . . . . . . . . . . . .  10
     5.2.  Data Structure  . . . . . . . . . . . . . . . . . . . . .  11
     5.3.  Overlay Configuration Document Extension  . . . . . . . .  12
   6.  Access Control to Shared Resources  . . . . . . . . . . . . .  13
     6.1.  Granting Write Access . . . . . . . . . . . . . . . . . .  13
     6.2.  Revoking Write Access . . . . . . . . . . . . . . . . . .  14
     6.3.  Validating Write Access through an ACL  . . . . . . . . .  14
     6.4.  Operations of Storing Peers . . . . . . . . . . . . . . .  15
     6.5.  Operations of Accessing Peers . . . . . . . . . . . . . .  16
     6.6.  USER-CHAIN-ACL Access Policy  . . . . . . . . . . . . . .  16
   7.  ACCESS-CONTROL-LIST Kind Definition . . . . . . . . . . . . .  17
   8.  Security Considerations . . . . . . . . . . . . . . . . . . .  17
     8.1.  Resource Exhaustion . . . . . . . . . . . . . . . . . . .  17
     8.2.  Malicious or Misbehaving Storing Peer . . . . . . . . . .  18
     8.3.  Trust Delegation to a Malicious or Misbehaving Peer . . .  18
     8.4.  Privacy Issues  . . . . . . . . . . . . . . . . . . . . .  18
   9.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  19
     9.1.  Access Control Policy . . . . . . . . . . . . . . . . . .  19
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