Secure IoT Bootstrapping: A Survey
draft-sarikaya-t2trg-sbootstrapping-10

Document Type Active Internet-Draft (individual)
Authors Mohit Sethi  , Behcet Sarikaya  , Dan Garcia-Carrillo 
Last updated 2021-01-11
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Network Working Group                                           M. Sethi
Internet-Draft                                                  Ericsson
Intended status: Informational                               B. Sarikaya
Expires: July 15, 2021                               Denpel Informatique
                                                      D. Garcia-Carrillo
                                                    University of Oviedo
                                                        January 11, 2021

                   Secure IoT Bootstrapping: A Survey
                 draft-sarikaya-t2trg-sbootstrapping-10

Abstract

   This draft provides an overview of the various terms that are used
   when discussing bootstrapping of IoT devices.  We document terms that
   have been used within the IETF as well as other standards bodies.  We
   investigate if the terms refer to the same phenomena or have subtle
   differences.  We provide recommendations on the applicability of
   terms in different contexts.  Finally, this document presents a
   survey of secure bootstrapping mechanisms available for smart objects
   that are part of an Internet of Things (IoT) network.  The survey
   does not prescribe any one mechanism and rather presents IoT
   developers with different options to choose from, depending on their
   use-case, security requirements, and the user interface available on
   their IoT devices.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

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   This Internet-Draft will expire on July 15, 2021.

Sethi, et al.             Expires July 15, 2021                 [Page 1]
Internet-Draft         IoT Bootstrapping Analysis           January 2021

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   4
   3.  Usage of bootstrapping terminology in standards . . . . . . .   4
     3.1.  Device Provisioning Protocol (DPP)  . . . . . . . . . . .   4
     3.2.  Open Mobile Alliance (OMA) Lightweight M2M (LwM2M)  . . .   5
     3.3.  Open Connectivity Foundation (OCF)  . . . . . . . . . . .   6
     3.4.  Bluetooth . . . . . . . . . . . . . . . . . . . . . . . .   7
     3.5.  Fast IDentity Online (FIDO) alliance  . . . . . . . . . .   7
     3.6.  Internet Engineering Task Force (IETF)  . . . . . . . . .   8
       3.6.1.  Enrollment over Secure Transport (EST)  . . . . . . .   8
       3.6.2.  Bootstrapping Remote Secure Key Infrastructures
               (BRSKI) . . . . . . . . . . . . . . . . . . . . . . .   8
       3.6.3.  Secure Zero Touch Provisioning  . . . . . . . . . . .   8
       3.6.4.  Nimble out-of-band authentication for EAP (EAP-NOOB)    9
   4.  Comparison  . . . . . . . . . . . . . . . . . . . . . . . . .   9
   5.  Recommendations . . . . . . . . . . . . . . . . . . . . . . .   9
   6.  Classification of available mechanisms  . . . . . . . . . . .  10
   7.  IoT Device Bootstrapping Methods  . . . . . . . . . . . . . .  11
     7.1.  Managed Methods . . . . . . . . . . . . . . . . . . . . .  11
       7.1.1.  Bootstrapping in LPWAN  . . . . . . . . . . . . . . .  13
     7.2.  Peer-to-Peer or Ad-hoc Methods  . . . . . . . . . . . . .  14
     7.3.  Leap-of-faith/Opportunistic Methods . . . . . . . . . . .  15
     7.4.  Hybrid Methods  . . . . . . . . . . . . . . . . . . . . .  16
   8.  Security Considerations . . . . . . . . . . . . . . . . . . .  16
   9.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  17
   10. Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  17
   11. Informative References  . . . . . . . . . . . . . . . . . . .  17
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  23
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