Use Cases and Interpretations of Resource Public Key Infrastructure (RPKI) Objects for Issuers and Relying Parties
RFC 6907

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Internet Engineering Task Force (IETF)                      T. Manderson
Request for Comments: 6907                                         ICANN
Category: Informational                                        K. Sriram
ISSN: 2070-1721                                                  US NIST
                                                                R. White
                                                                Verisign
                                                              March 2013

                     Use Cases and Interpretations
          of Resource Public Key Infrastructure (RPKI) Objects
                    for Issuers and Relying Parties

Abstract

   This document describes a number of use cases together with
   directions and interpretations for organizations and relying parties
   when creating or encountering Resource Public Key Infrastructure
   (RPKI) object scenarios in the public RPKI.  All of these items are
   discussed here in relation to the Internet routing system.

Status of This Memo

   This document is not an Internet Standards Track specification; it is
   published for informational purposes.

   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).  Not all documents
   approved by the IESG are a candidate for any level of Internet
   Standard; see Section 2 of RFC 5741.

   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/rfc6907.

Manderson, et al.             Informational                     [Page 1]
RFC 6907           RPKI Use Cases and Interpretations         March 2013

Copyright Notice

   Copyright (c) 2013 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.

Table of Contents

   1. Introduction ....................................................4
      1.1. Terminology ................................................4
      1.2. Documentation Prefixes .....................................4
      1.3. Definitions ................................................4
   2. Overview ........................................................6
      2.1. General Interpretation of RPKI Object Semantics ............6
   3. Origination Use Cases ...........................................7
      3.1. Single Announcement ........................................8
      3.2. Aggregate with a More Specific .............................8
      3.3. Aggregate with a More Specific from a Different ASN ........9
      3.4. Sub-Allocation to a Multi-Homed Customer ...................9
      3.5. Restriction of a New Allocation ...........................10
      3.6. Restriction of New ASN ....................................11
      3.7. Restriction of a Part of an Allocation ....................11
      3.8. Restriction of Prefix Length ..............................12
      3.9. Restriction of Sub-Allocation Prefix Length ...............13
      3.10. Aggregation and Origination by an Upstream Provider ......15
      3.11. Rogue Aggregation and Origination by an Upstream
            Provider .................................................16
   4. Adjacency or Path Validation Use Cases .........................17
   5. Partial Deployment Use Cases ...................................18
      5.1. Parent Does Not Participate in RPKI .......................18
      5.2. Only Some Children Participate in RPKI ....................18
      5.3. Grandchild Does Not Participate in RPKI ...................19
   6. Transfer Use Cases .............................................20
      6.1. Transfer of In-Use Prefix and Autonomous System Number ....20
      6.2. Transfer of In-Use Prefix .................................21
      6.3. Transfer of Unused Prefix .................................22

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RFC 6907           RPKI Use Cases and Interpretations         March 2013

   7. Relying Party Use Cases ........................................22
      7.1. Prefix-Origin Validation Use Cases ........................22
           7.1.1. Covering ROA Prefix, maxLength Satisfied,
                  and AS Match .......................................23