Resource Public Key Infrastructure (RPKI) Trust Anchor Locator
draft-ietf-sidrops-https-tal-00

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Last updated 2018-03-20
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Network Working Group                                     T. Bruijnzeels
Internet-Draft                                                  RIPE NCC
Obsoletes: 7730 (if approved)                              G. Michaelson
Intended status: Standards Track                                   APNIC
Expires: September 21, 2018                               March 20, 2018

     Resource Public Key Infrastructure (RPKI) Trust Anchor Locator
                    draft-ietf-sidrops-https-tal-00

Abstract

   This document defines a Trust Anchor Locator (TAL) for the Resource
   Public Key Infrastructure (RPKI).  This document obsoletes RFC 7730
   by adding support for HTTPS URIs in a TAL.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

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   This Internet-Draft will expire on September 21, 2018.

Copyright Notice

   Copyright (c) 2018 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
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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Terminology . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Trust Anchor Locator  . . . . . . . . . . . . . . . . . . . .   2
     2.1.  Trust Anchor Locator Format . . . . . . . . . . . . . . .   2
     2.2.  TAL and Trust Anchor Certificate Considerations . . . . .   3
     2.3.  Example . . . . . . . . . . . . . . . . . . . . . . . . .   5
   3.  Relying Party Use . . . . . . . . . . . . . . . . . . . . . .   5
   4.  HTTPS Considerations  . . . . . . . . . . . . . . . . . . . .   6
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .   7
   6.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .   7
   7.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   8
     7.1.  Normative References  . . . . . . . . . . . . . . . . . .   8
     7.2.  Informative References  . . . . . . . . . . . . . . . . .   9
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   9

1.  Introduction

   This document defines a Trust Anchor Locator (TAL) for the Resource
   Public Key Infrastructure (RPKI) [RFC6480].  This format may be used
   to distribute trust anchor material using a mix of out-of-band and
   online means.  Procedures used by Relying Parties (RPs) to verify
   RPKI signed objects SHOULD support this format to facilitate
   interoperability between creators of trust anchor material and RPs.
   This document obsoletes [RFC7730] by adding support for HTTPS URIs in
   a TAL.

1.1.  Terminology

   The keywords MUST, MUST NOT, REQUIRED, SHALL, SHALL NOT, SHOULD,
   SHOULD NOT, RECOMMENDED, MAY, and OPTIONAL, when they appear in this
   document, are to be interpreted as described in [RFC2119].

2.  Trust Anchor Locator

2.1.  Trust Anchor Locator Format

   This document does not propose a new format for trust anchor
   material.  A trust anchor in the RPKI is represented by a self-signed
   X.509 Certification Authority (CA) certificate, a format commonly
   used in PKIs and widely supported by RP software.  This document
   specifies a format for data used to retrieve and verify the
   authenticity of a trust anchor in a very simple fashion.  That data
   is referred to as the TAL.

   The motivation for defining the TAL is to enable selected data in the
   trust anchor to change, without needing to effect redistribution of

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   the trust anchor per se.  In the RPKI, certificates contain
   extensions that represent Internet Number Resources (INRs) [RFC3779].
   The set of INRs associated with an entity acting as a trust anchor is
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