A Usage for Shared Resources in RELOAD (ShaRe)
RFC 8076
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
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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.
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
9.2. Data Kind-ID . . . . . . . . . . . . . . . . . . . . . . 19
9.3. XML Namespace Registration . . . . . . . . . . . . . . . 19
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