BRSKI Cloud Registrar
draft-friel-anima-brski-cloud-02

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Network Working Group                                           O. Friel
Internet-Draft                                                     Cisco
Intended status: Standards Track                          R. Shekh-Yusef
Expires: 3 November 2020                                           Avaya
                                                           M. Richardson
                                                Sandelman Software Works
                                                              2 May 2020

                         BRSKI Cloud Registrar
                    draft-friel-anima-brski-cloud-02

Abstract

   This document specifies the behaviour of a BRSKI Cloud Registrar, and
   how a pledge can interact with a BRSKI Cloud Registrar when
   bootstrapping.

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   This Internet-Draft will expire on 3 November 2020.

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   Copyright (c) 2020 IETF Trust and the persons identified as the
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Friel, et al.            Expires 3 November 2020                [Page 1]
Internet-Draft                 BRSKI-CLOUD                      May 2020

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Target use cases  . . . . . . . . . . . . . . . . . . . .   3
   2.  Architecture  . . . . . . . . . . . . . . . . . . . . . . . .   3
     2.1.  Interested Parties  . . . . . . . . . . . . . . . . . . .   4
     2.2.  Network Connectivity  . . . . . . . . . . . . . . . . . .   5
   3.  Initial Voucher Request . . . . . . . . . . . . . . . . . . .   5
     3.1.  Cloud Registrar Discovery . . . . . . . . . . . . . . . .   5
     3.2.  Pledge - Cloud Registrar TLS Establishment Details  . . .   5
     3.3.  Pledge Requests Voucher from the Cloud Registrar  . . . .   5
   4.  Cloud Registrar Voucher Request Operation . . . . . . . . . .   6
     4.1.  Pledge Ownership Lookup . . . . . . . . . . . . . . . . .   6
   5.  Voucher Request Redirected to Local Domain Registrar  . . . .   6
     5.1.  Pledge handling of Redirect . . . . . . . . . . . . . . .   7
   6.  Voucher Request Handled by Cloud Registrar  . . . . . . . . .   7
   7.  Protocol Details  . . . . . . . . . . . . . . . . . . . . . .   7
     7.1.  Voucher Request Redirected to Local Domain Registrar  . .   7
     7.2.  Voucher Request Handled by Cloud Registrar  . . . . . . .   8
   8.  Pledge Certificate Identity Considerations  . . . . . . . . .   9
   9.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  10
   10. Security Considerations . . . . . . . . . . . . . . . . . . .  10
   11. Informative References  . . . . . . . . . . . . . . . . . . .  10
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  11

1.  Introduction

   Bootstrapping Remote Secure Key Infrastructures (BRSKI)
   [I-D.ietf-anima-bootstrapping-keyinfra] specifies automated
   bootstrapping of an Autonomic Control Plane.  BRSKI Section 2.7
   describes how a pledge "MAY contact a well known URI of a cloud
   registrar if a local registrar cannot be discovered or if the
   pledge's target use cases do not include a local registrar".

   This document further specifies use of a BRSKI cloud registrar and
   clarifies operations that are not sufficiently specified in BRSKI.

   Two high level deployment models are documented here:

   *  Local Domain Registrar Discovery: the cloud registrar is used by
      the pledge to discover the local domain registrar.  The cloud
      registrar redirects the pledge to the local domain registrar, and
      the pledge completes bootstrap against the local domain registrar.

   *  Cloud Registrar Based Boostrap: there is no local domain registrar
      and the pledge completes boostrap using the cloud registrar.  As