An ACME Profile for Generating Delegated STAR Certificates
draft-ietf-acme-star-delegation-00

Document Type Active Internet-Draft (acme WG)
Last updated 2018-12-13
Replaces draft-sheffer-acme-star-delegation
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ACME                                                          Y. Sheffer
Internet-Draft                                                    Intuit
Intended status: Standards Track                                D. Lopez
Expires: June 16, 2019                                 A. Pastor Perales
                                                          Telefonica I+D
                                                              T. Fossati
                                                                   Nokia
                                                       December 13, 2018

       An ACME Profile for Generating Delegated STAR Certificates
                   draft-ietf-acme-star-delegation-00

Abstract

   This memo proposes a profile of the ACME protocol that allows the
   owner of an identifier (e.g., a domain name) to delegate to a third
   party access to a certificate associated with said identifier.  A
   primary use case is that of a CDN (the third party) terminating TLS
   sessions on behalf of a content provider (the owner of a domain
   name).  The presented mechanism allows the owner of the identifier to
   retain control over the delegation and revoke it at any time by
   cancelling the associated STAR certificate renewal with the ACME CA.
   Another key property of this mechanism is it does not require any
   modification to the deployed TLS ecosystem.

Status of This Memo

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

   Internet-Drafts are working documents of the Internet Engineering
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   This Internet-Draft will expire on June 16, 2019.

Copyright Notice

   Copyright (c) 2018 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

Sheffer, et al.           Expires June 16, 2019                 [Page 1]
Internet-Draft            ACME STAR Delegation             December 2018

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (https://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Terminology . . . . . . . . . . . . . . . . . . . . . . .   3
     1.2.  Conventions used in this document . . . . . . . . . . . .   4
   2.  Protocol Flow . . . . . . . . . . . . . . . . . . . . . . . .   4
     2.1.  Preconditions . . . . . . . . . . . . . . . . . . . . . .   4
     2.2.  Overview  . . . . . . . . . . . . . . . . . . . . . . . .   4
     2.3.  Delegated Identity Profile  . . . . . . . . . . . . . . .   6
       2.3.1.  Order Object on the NDC-IdO side  . . . . . . . . . .   6
       2.3.2.  Order Object on the IdO-CA side . . . . . . . . . . .   9
       2.3.3.  Capability Discovery  . . . . . . . . . . . . . . . .   9
       2.3.4.  On Cancelation  . . . . . . . . . . . . . . . . . . .   9
   3.  CDNI Use Cases  . . . . . . . . . . . . . . . . . . . . . . .   9
     3.1.  Multiple Parallel Delegates . . . . . . . . . . . . . . .   9
     3.2.  Chained Delegation  . . . . . . . . . . . . . . . . . . .  10
   4.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  10
     4.1.  New fields in the "meta" Object within a Directory Object  10
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .  10
     5.1.  Restricting CDNs to the Delegation Mechanism  . . . . . .  10
   6.  Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .  11
   7.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  11
     7.1.  Normative References  . . . . . . . . . . . . . . . . . .  11
     7.2.  Informative References  . . . . . . . . . . . . . . . . .  12
   Appendix A.  Document History . . . . . . . . . . . . . . . . . .  13
     A.1.  draft-ietf-acme-star-delegation-00  . . . . . . . . . . .  13
     A.2.  draft-sheffer-acme-star-delegation-01 . . . . . . . . . .  13
     A.3.  draft-sheffer-acme-star-delegation-00 . . . . . . . . . .  13
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  13

1.  Introduction

   This document is a companion document to [I-D.ietf-acme-star].  To
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