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