CDNI extensions for HTTPS delegation
draft-fieau-cdni-interfaces-https-delegation-02

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Network Working Group                                      F. Fieau, Ed.
Internet-Draft                                                E. Stephan
Intended status: Standards Track                                  Orange
Expires: May 3, 2018                                           S. Mishra
                                                                 Verizon
                                                        October 30, 2017

                  CDNI extensions for HTTPS delegation
            draft-fieau-cdni-interfaces-https-delegation-02

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 a
   uCDN to a dCDN.

Status of This Memo

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   This Internet-Draft will expire on May 3, 2018.

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   Copyright (c) 2017 IETF Trust and the persons identified as the
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Fieau, et al.              Expires May 3, 2018                  [Page 1]
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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Known delegation methods  . . . . . . . . . . . . . . . . . .   3
   4.  Specifying Delegation metadata  . . . . . . . . . . . . . . .   3
     4.1.  SecureDelegation object definition  . . . . . . . . . . .   3
     4.2.  Extension to the current CDNI metadata model  . . . . . .   5
   5.  Delegation methods  . . . . . . . . . . . . . . . . . . . . .   7
     5.1.  AcmeStarDelegationMethod object . . . . . . . . . . . . .   7
     5.2.  SubcertsDelegationMethod object . . . . . . . . . . . . .   8
   6.  Metadata Simple Data Type Descriptions  . . . . . . . . . . .  10
     6.1.  Periodicity . . . . . . . . . . . . . . . . . . . . . . .  10
   7.  IANA considerations . . . . . . . . . . . . . . . . . . . . .  10
     7.1.  CDNI MI SecureDelegation Payload Type . . . . . . . . . .  10
     7.2.  CDNI MI AcmeStarDelegationMethod Payload Type . . . . . .  10
     7.3.  CDNI MI SubCertsDelegationMethod Payload Type . . . . . .  11
   8.  Security considerations . . . . . . . . . . . . . . . . . . .  11
   9.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  11
     9.1.  Normative References  . . . . . . . . . . . . . . . . . .  11
     9.2.  Informative References  . . . . . . . . . . . . . . . . .  12
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  12

1.  Introduction

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

   Several delegation methods are currently proposed within different
   IETF working groups (refer to [I-D.fieau-cdni-https-delegation] for
   an overview of delegation works ongoing at the IETF).  They specify
   different methods for provisioning HTTPS delivery credentials.

   This document proposes an extension to the CDNI control / Triggers
   and Metadata interfaces to setup HTTPS delegation between an uCDN and
   dCDN.  Furthermore, it includes a proposal of registry to enable the
   adding of new methods in the future.

   Section 2 is about terminology used in this document.  Section 3
   presents delegation methods specified at the IETF.  Section 4
   introduces delegation metadata in CDNI.  Section 5 addresses the
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