Constrained Voucher Artifacts for Bootstrapping Protocols
draft-ietf-anima-constrained-voucher-05
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Last updated 2019-07-08
Replaces draft-richardson-anima-ace-constrained-voucher
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anima Working Group                                        M. Richardson
Internet-Draft                                  Sandelman Software Works
Intended status: Standards Track                         P. van der Stok
Expires: January 9, 2020                          vanderstok consultancy
                                                           P. Kampanakis
                                                           Cisco Systems
                                                           July 08, 2019

       Constrained Voucher Artifacts for Bootstrapping Protocols
                draft-ietf-anima-constrained-voucher-05

Abstract

   This document defines a strategy to securely assign a pledge to an
   owner, using an artifact signed, directly or indirectly, by the
   pledge's manufacturer.  This artifact is known as a "voucher".

   This document builds upon the work in [RFC8366], encoding the
   resulting artifact in CBOR.  Use with two signature technologies are
   described.

   Additionally, this document explains how constrained vouchers may be
   transported as an extension to the [I-D.ietf-ace-coap-est] protocol.

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 January 9, 2020.

Copyright Notice

   Copyright (c) 2019 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

Richardson, et al.       Expires January 9, 2020                [Page 1]
Internet-Draft             Constrained Voucher                 July 2019

   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
   carefully, as they describe your rights and restrictions with respect
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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   4
   3.  Requirements Language . . . . . . . . . . . . . . . . . . . .   4
   4.  Survey of Voucher Types . . . . . . . . . . . . . . . . . . .   4
   5.  Discovery and URI . . . . . . . . . . . . . . . . . . . . . .   5
   6.  Artifacts . . . . . . . . . . . . . . . . . . . . . . . . . .   7
     6.1.  Voucher Request artifact  . . . . . . . . . . . . . . . .   7
       6.1.1.  Tree Diagram  . . . . . . . . . . . . . . . . . . . .   7
       6.1.2.  SID values  . . . . . . . . . . . . . . . . . . . . .   8
       6.1.3.  YANG Module . . . . . . . . . . . . . . . . . . . . .   9
       6.1.4.  Example voucher request artifact  . . . . . . . . . .  13
     6.2.  Voucher artifact  . . . . . . . . . . . . . . . . . . . .  13
       6.2.1.  Tree Diagram  . . . . . . . . . . . . . . . . . . . .  13
       6.2.2.  SID values  . . . . . . . . . . . . . . . . . . . . .  14
       6.2.3.  YANG Module . . . . . . . . . . . . . . . . . . . . .  14
       6.2.4.  Example voucher artifacts . . . . . . . . . . . . . .  17
     6.3.  Signing voucher and voucher-request artifacts . . . . . .  18
       6.3.1.  CMS signing . . . . . . . . . . . . . . . . . . . . .  18
       6.3.2.  COSE signing  . . . . . . . . . . . . . . . . . . . .  19
   7.  Design Considerations . . . . . . . . . . . . . . . . . . . .  19
   8.  Security Considerations . . . . . . . . . . . . . . . . . . .  19
     8.1.  Clock Sensitivity . . . . . . . . . . . . . . . . . . . .  19
     8.2.  Protect Voucher PKI in HSM  . . . . . . . . . . . . . . .  20
     8.3.  Test Domain Certificate Validity when Signing . . . . . .  20
   9.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  20
     9.1.  Resource Type Registry  . . . . . . . . . . . . . . . . .  20
     9.2.  The IETF XML Registry . . . . . . . . . . . . . . . . . .  20
     9.3.  The YANG Module Names Registry  . . . . . . . . . . . . .  20
     9.4.  The RFC SID range assignment sub-registry . . . . . . . .  21
     9.5.  The SMI Security for S/MIME CMS Content Type Registry . .  21
     9.6.  Media-Type Registry . . . . . . . . . . . . . . . . . . .  21
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