Constrained Voucher Profile for Bootstrapping Protocols
draft-richardson-anima-ace-constrained-voucher-03

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draft-richardson-anima-ace-constrained-voucher-03.txt:
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6tisch Working Group                                       M. Richardson
Internet-Draft                                  Sandelman Software Works
Intended status: Informational                           P. van der Stok
Expires: August 18, 2018                          vanderstok consultancy
                                                           P. Kampanakis
                                                           Cisco Systems
                                                       February 14, 2018

        Constrained Voucher Profile for Bootstrapping Protocols
           draft-richardson-anima-ace-constrained-voucher-03

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 [I-D.ietf-anima-voucher],
   encoding the resulting artifact in CBOR.  Use with two signature
   technologies are described.

   Additionally, this document explains how constrained vouchers may be
   transported in the [I-D.vanderstok-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
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at https://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on August 18, 2018.

Copyright Notice

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

Richardson, et al.       Expires August 18, 2018                [Page 1]
Internet-Draft            Constrained Vouchers             February 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
   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this document must
   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  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Requirements Language . . . . . . . . . . . . . . . . . . . .   4
   4.  Survey of Voucher Types . . . . . . . . . . . . . . . . . . .   4
   5.  Discovery and URI . . . . . . . . . . . . . . . . . . . . . .   4
   6.  Artifacts . . . . . . . . . . . . . . . . . . . . . . . . . .   6
     6.1.  Voucher Request artifact  . . . . . . . . . . . . . . . .   6
       6.1.1.  Tree Diagram  . . . . . . . . . . . . . . . . . . . .   6
       6.1.2.  SID values  . . . . . . . . . . . . . . . . . . . . .   6
       6.1.3.  YANG Module . . . . . . . . . . . . . . . . . . . . .   7
       6.1.4.  Example voucher request artifacts . . . . . . . . . .   9
     6.2.  Voucher artifact  . . . . . . . . . . . . . . . . . . . .   9
     6.3.  Tree Diagram  . . . . . . . . . . . . . . . . . . . . . .   9
     6.4.  SID values  . . . . . . . . . . . . . . . . . . . . . . .   9
     6.5.  YANG Module . . . . . . . . . . . . . . . . . . . . . . .  10
       6.5.1.  Example voucher artifacts . . . . . . . . . . . . . .  12
     6.6.  CMS format voucher and voucher-request artifacts  . . . .  12
     6.7.  COSE format voucher and voucher-request artifacts . . . .  13
   7.  Design Considerations . . . . . . . . . . . . . . . . . . . .  13
   8.  Security Considerations . . . . . . . . . . . . . . . . . . .  13
     8.1.  Clock Sensitivity . . . . . . . . . . . . . . . . . . . .  13
     8.2.  Protect Voucher PKI in HSM  . . . . . . . . . . . . . . .  13
     8.3.  Test Domain Certificate Validity when Signing . . . . . .  13
   9.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  13
     9.1.  The IETF XML Registry . . . . . . . . . . . . . . . . . .  13
     9.2.  The YANG Module Names Registry  . . . . . . . . . . . . .  13
     9.3.  The SMI Security for S/MIME CMS Content Type Registry . .  14
     9.4.  The SID registry  . . . . . . . . . . . . . . . . . . . .  14
     9.5.  Media-Type Registry . . . . . . . . . . . . . . . . . . .  14
     9.6.  CoAP Content-Format Registry  . . . . . . . . . . . . . .  15
   10. Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  15