CDNI extensions for HTTPS delegation
draft-ietf-cdni-interfaces-https-delegation-00

Document Type Active Internet-Draft (cdni WG)
Last updated 2018-11-28
Replaces draft-fieau-cdni-interfaces-https-delegation
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CDNI Working Group                                         F. Fieau, Ed.
Internet-Draft                                                E. Stephan
Intended status: Standards Track                                  Orange
Expires: June 1, 2019                                          S. Mishra
                                                                 Verizon
                                                       November 28, 2018

                  CDNI extensions for HTTPS delegation
             draft-ietf-cdni-interfaces-https-delegation-00

Abstract

   The delivery of content over HTTPS involving multiple CDNs raises
   credential management issues.  This document proposes extensions in
   CDNI Control and Metadata interfaces to setup HTTPS delegation from
   an Upstream CDN (uCDN) to a Downstream CDN (dCDN).

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 June 1, 2019.

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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   (https://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

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   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Known delegation methods  . . . . . . . . . . . . . . . . . .   3
   4.  Extending the CDNI metadata model . . . . . . . . . . . . . .   3
     4.1.  Extension to PathMetadata object  . . . . . . . . . . . .   3
     4.2.  Delegation methods  . . . . . . . . . . . . . . . . . . .   5
       4.2.1.  AcmeStarDelegationMethod object . . . . . . . . . . .   5
       4.2.2.  SubcertsDelegationMethod object . . . . . . . . . . .   6
   5.  Metadata Simple Data Type Descriptions  . . . . . . . . . . .   7
     5.1.  Periodicity . . . . . . . . . . . . . . . . . . . . . . .   7
   6.  IANA considerations . . . . . . . . . . . . . . . . . . . . .   7
     6.1.  CDNI MI AcmeStarDelegationMethod Payload Type . . . . . .   7
     6.2.  CDNI MI SubCertsDelegationMethod Payload Type . . . . . .   8
   7.  Security considerations . . . . . . . . . . . . . . . . . . .   8
   8.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   8
     8.1.  Normative References  . . . . . . . . . . . . . . . . . .   8
     8.2.  Informative References  . . . . . . . . . . . . . . . . .   8
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   9

1.  Introduction

   Content delivery over HTTPS using one or more CDNs along the path
   requires credential management.  This specifically applies when an
   entity delegates delivery of encrypted content to another trusted
   entity.

   Several delegation methods are currently proposed within different
   IETF working groups.  They specify different methods for provisioning
   HTTPS delivery credentials.

   This document extends the CDNI Metadata interface to setup HTTPS
   delegation between an upstream CDN (uCDN) and downstream CDN (dCDN).
   Furthermore, it includes a proposal of IANA registry to enable the
   adding of new methods.

   Section 2 is about terminology used in this document.  Section 3
   presents delegation methods specified at the IETF.  Section 4
   addresses the extension for handling HTTPS delegation in CDNI.
   Section 5 describes simple data types.  Section 6 is about an IANA
   registry for delegation methods.  Section 7 raises the security
   issues.

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2.  Terminology

   This document uses terminology from CDNI framework documents such as:
   CDNI framework document [RFC7336], CDNI requirements [RFC7337] and
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