Constrained Voucher Profile for Bootstrapping Protocols
draft-richardson-anima-ace-constrained-voucher-02

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6tisch Working Group                                       M. Richardson
Internet-Draft                                  Sandelman Software Works
Intended status: Informational                         December 11, 2017
Expires: June 14, 2018

        Constrained Voucher Profile for Bootstrapping Protocols
           draft-richardson-anima-ace-constrained-voucher-02

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
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   Internet-Drafts are draft documents valid for a maximum of six months
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   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 June 14, 2018.

Copyright Notice

   Copyright (c) 2017 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
   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

Richardson                Expires June 14, 2018                 [Page 1]
Internet-Draft            Constrained Vouchers             December 2017

   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  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Requirements Language . . . . . . . . . . . . . . . . . . . .   3
   4.  Survey of Voucher Types . . . . . . . . . . . . . . . . . . .   3
   5.  Artifacts . . . . . . . . . . . . . . . . . . . . . . . . . .   4
     5.1.  Voucher Request artifact  . . . . . . . . . . . . . . . .   4
       5.1.1.  Tree Diagram  . . . . . . . . . . . . . . . . . . . .   4
       5.1.2.  SID values  . . . . . . . . . . . . . . . . . . . . .   5
       5.1.3.  YANG Module . . . . . . . . . . . . . . . . . . . . .   5
       5.1.4.  Example voucher request artifacts . . . . . . . . . .   6
     5.2.  Voucher artifact  . . . . . . . . . . . . . . . . . . . .   6
     5.3.  Tree Diagram  . . . . . . . . . . . . . . . . . . . . . .   7
     5.4.  SID values  . . . . . . . . . . . . . . . . . . . . . . .   7
     5.5.  YANG Module . . . . . . . . . . . . . . . . . . . . . . .   7
       5.5.1.  Example voucher artifacts . . . . . . . . . . . . . .   9
     5.6.  CMS format voucher and voucher-request artifacts  . . . .   9
     5.7.  COSE format voucher and voucher-request artifacts . . . .  10
   6.  Design Considerations . . . . . . . . . . . . . . . . . . . .  10
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .  10
     7.1.  Clock Sensitivity . . . . . . . . . . . . . . . . . . . .  10
     7.2.  Protect Voucher PKI in HSM  . . . . . . . . . . . . . . .  10
     7.3.  Test Domain Certificate Validity when Signing . . . . . .  10
   8.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  11
     8.1.  The IETF XML Registry . . . . . . . . . . . . . . . . . .  11
     8.2.  The YANG Module Names Registry  . . . . . . . . . . . . .  11
     8.3.  The SMI Security for S/MIME CMS Content Type Registry . .  11
     8.4.  The SID registry  . . . . . . . . . . . . . . . . . . . .  11
     8.5.  CoAP Content-Type . . . . . . . . . . . . . . . . . . . .  12
   9.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  12
   10. References  . . . . . . . . . . . . . . . . . . . . . . . . .  12
     10.1.  Normative References . . . . . . . . . . . . . . . . . .  12
     10.2.  Informative References . . . . . . . . . . . . . . . . .  13
   Author's Address  . . . . . . . . . . . . . . . . . . . . . . . .  14

1.  Introduction

   Enrollment of new nodes into constrained networks with constrained
   nodes present unique challenges.