Delegated Authority for Bootstrap Voucher Artifacts
draft-richardson-anima-voucher-delegation-01

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anima Working Group                                        M. Richardson
Internet-Draft                                  Sandelman Software Works
Intended status: Standards Track                                  L. Xia
Expires: September 10, 2020                                       Huawei
                                                          March 09, 2020

          Delegated Authority for Bootstrap Voucher Artifacts
              draft-richardson-anima-voucher-delegation-01

Abstract

   This document describes an extension of the RFC8366 Voucher Artifact
   in order to support delegation of signing authority.  The initial
   voucher pins a public identity, and that public indentity can then
   issue additional vouchers.  This chain of authorization can support
   permission-less resale of devices, as well as guarding against
   business failure of the BRSKI [I-D.ietf-anima-bootstrapping-keyinfra]
   Manufacturer Authorized Signing Authority (MASA).

Status of This Memo

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   This Internet-Draft will expire on September 10, 2020.

Copyright Notice

   Copyright (c) 2020 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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Richardson & Xia       Expires September 10, 2020               [Page 1]
Internet-Draft              delegated-voucher                 March 2020

   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Requirements for the Delegation . . . . . . . . . . . . .   3
       1.1.1.  Device Onboarding with Disconnected or Offline MASA .   3
       1.1.2.  Resale of Devices . . . . . . . . . . . . . . . . . .   3
       1.1.3.  Crypto-agility for Registrar  . . . . . . . . . . . .   3
       1.1.4.  Transparent Assemblers/Value-Added-Resellers  . . . .   4
     1.2.  Overview of Proposed Solution . . . . . . . . . . . . . .   4
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   4
   3.  Delegation Voucher Artifact . . . . . . . . . . . . . . . . .   5
     3.1.  YANG Module . . . . . . . . . . . . . . . . . . . . . . .   6
     3.2.  Bundling of The Vouchers  . . . . . . . . . . . . . . . .   8
     3.3.  Delegation of Multiple Devices  . . . . . . . . . . . . .   9
   4.  Enhanced Pledge Behavior  . . . . . . . . . . . . . . . . . .   9
   5.  Changes to Registrar Behavior . . . . . . . . . . . . . . . .  10
     5.1.  Discovering The Most Recent Delegated Authority to Use  .  10
   6.  Applying The Delegation Voucher to Requirements . . . . . . .  11
     6.1.  applicability one . . . . . . . . . . . . . . . . . . . .  11
     6.2.  applicability two . . . . . . . . . . . . . . . . . . . .  11
   7.  Constraints on Pinning The Delegated Authority  . . . . . . .  11
   8.  Privacy Considerations  . . . . . . . . . . . . . . . . . . .  11
   9.  Security Considerations . . . . . . . . . . . . . . . . . . .  11
     9.1.  YANG Module Security Considerations . . . . . . . . . . .  11
   10. IANA Considerations . . . . . . . . . . . . . . . . . . . . .  12
     10.1.  The IETF XML Registry  . . . . . . . . . . . . . . . . .  12
     10.2.  YANG Module Names Registry . . . . . . . . . . . . . . .  12
   11. Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  12
   12. Changelog . . . . . . . . . . . . . . . . . . . . . . . . . .  12
   13. References  . . . . . . . . . . . . . . . . . . . . . . . . .  12
     13.1.  Normative References . . . . . . . . . . . . . . . . . .  12
     13.2.  Informative References . . . . . . . . . . . . . . . . .  13
   Appendix A.  Extra references . . . . . . . . . . . . . . . . . .  14
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  14

1.  Introduction

   The [RFC8366] voucher artifact provides a proof from a manufacturer's
   authorizing signing authority (MASA) of the intended owner of a
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