Conveying a Certificate Signing Request (CSR) in a Secure Zero Touch Provisioning (SZTP) Bootstrapping Request
draft-ietf-netconf-sztp-csr-00
Document Type Active Internet-Draft (netconf WG)
Authors Kent Watsen  , Russ Housley  , Sean Turner 
Last updated 2020-10-02
Replaces draft-kwatsen-netconf-sztp-csr
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NETCONF Working Group                                          K. Watsen
Internet-Draft                                           Watsen Networks
Updates: 8572 (if approved)                                   R. Housley
Intended status: Standards Track                     Vigil Security, LLC
Expires: 5 April 2021                                          S. Turner
                                                                   sn3rd
                                                          2 October 2020

  Conveying a Certificate Signing Request (CSR) in a Secure Zero Touch
               Provisioning (SZTP) Bootstrapping Request
                     draft-ietf-netconf-sztp-csr-00

Abstract

   This draft extends the "get-bootstrapping-data" RPC defined in RFC
   8572 to include an optional certificate signing request (CSR),
   enabling a bootstrapping device to additionally obtain an identity
   certificate (e.g., an LDevID, from IEEE 802.1AR) as part of the
   "onboarding information" response provided in the RPC-reply.

Editorial Note (To be removed by RFC Editor)

   This draft contains many placeholder values that need to be replaced
   with finalized values at the time of publication.  This note
   summarizes all of the substitutions that are needed.  No other RFC
   Editor instructions are specified elsewhere in this document.

   Artwork in this document contains shorthand references to drafts in
   progress.  Please apply the following replacements:

   *  "XXXX" --> the assigned numerical RFC value for this draft

   *  "AAAA" --> the assigned RFC value for I-D.ietf-netconf-crypto-
      types

   Artwork in this document contains a placeholder value for the
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   *  "2020-10-02" --> the publication date of this draft

   This document contains references to other drafts in progress, both
   in the Normative References section, as well as in body text
   throughout.  Please update the following references to reflect their
   final RFC assignments:

   *  I-D.ietf-netconf-crypto-types

Watsen, et al.            Expires 5 April 2021                  [Page 1]
Internet-Draft     Conveying a CSR in an SZTP Request       October 2020

   *  I-D.ietf-netconf-keystore

   *  I-D.ietf-netconf-trust-anchors

   *  I-D.ietf-netmod-factory-default

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 5 April 2021.

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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   Please review these documents carefully, as they describe your rights
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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
     1.1.  Overview  . . . . . . . . . . . . . . . . . . . . . . . .   3
     1.2.  Terminology . . . . . . . . . . . . . . . . . . . . . . .   3
     1.3.  Requirements Language . . . . . . . . . . . . . . . . . .   4
   2.  The "ietf-sztp-csr" Module  . . . . . . . . . . . . . . . . .   4
     2.1.  Data Model Overview . . . . . . . . . . . . . . . . . . .   4
     2.2.  Example Usage . . . . . . . . . . . . . . . . . . . . . .   7
     2.3.  YANG Module . . . . . . . . . . . . . . . . . . . . . . .  13
   3.  Security Considerations . . . . . . . . . . . . . . . . . . .  23

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     3.1.  SZTP-Client Considerations  . . . . . . . . . . . . . . .  23
       3.1.1.  Ensuring the Integrity of Asymmetric Private Keys . .  23
       3.1.2.  Reuse of a Manufacturer-generated Private Key . . . .  23
       3.1.3.  Replay Attack Protection  . . . . . . . . . . . . . .  24
       3.1.4.  Connecting to an Untrusted Bootstrap Server . . . . .  24
       3.1.5.  Selecting the Best Origin Authentication Mechanism  .  25
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