State-of-the-Art and Challenges for the Internet of Things Security
draft-irtf-t2trg-iot-seccons-11

Document Type Active Internet-Draft (t2trg RG)
Last updated 2018-02-13
Replaces draft-garcia-core-security
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Network Working Group                                  O. Garcia-Morchon
Internet-Draft                                              Philips IP&S
Intended status: Informational                                  S. Kumar
Expires: August 17, 2018                                Philips Research
                                                                M. Sethi
                                                                Ericsson
                                                       February 13, 2018

  State-of-the-Art and Challenges for the Internet of Things Security
                    draft-irtf-t2trg-iot-seccons-11

Abstract

   The Internet of Things (IoT) concept refers to the usage of standard
   Internet protocols to allow for human-to-thing and thing-to-thing
   communication.  The security needs for IoT systems are well-
   recognized and many standardization steps to provide security have
   been taken, for example, the specification of Constrained Application
   Protocol (CoAP) secured with Datagram Transport Layer Security
   (DTLS).  However, security challenges still exist, not only because
   there are some use cases that lack a suitable solution, but also
   because many IoT devices and systems have been designed and deployed
   with very limited security capabilities.  In this document, we first
   discuss the various stages in the lifecycle of a thing.  Next, we
   document the security threats to a thing and the challenges that one
   might face to protect against these threats.  Lastly, we discuss the
   next steps needed to facilitate the deployment of secure IoT systems.
   This document can be used by IoT standards specifications as a
   reference for details about security considerations applying to the
   specified protocol.

   This document is a product of the IRTF Thing-to-Thing Research Group
   (T2TRG).

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
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   Drafts is at http://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

Garcia-Morchon, et al.   Expires August 17, 2018                [Page 1]
Internet-Draft                IoT Security                 February 2018

   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 17, 2018.

Copyright Notice

   Copyright (c) 2018 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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   (http://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  The Thing Lifecycle . . . . . . . . . . . . . . . . . . . . .   4
   3.  Security Threats and Managing Risk  . . . . . . . . . . . . .   7
   4.  State-of-the-Art  . . . . . . . . . . . . . . . . . . . . . .  11
     4.1.  IP-based IoT Protocols and Standards  . . . . . . . . . .  11
     4.2.  Existing IP-based Security Protocols and Solutions  . . .  14
     4.3.  IoT Security Guidelines . . . . . . . . . . . . . . . . .  16
   5.  Challenges for a Secure IoT . . . . . . . . . . . . . . . . .  18
     5.1.  Constraints and Heterogeneous Communication . . . . . . .  19
       5.1.1.  Resource Constraints  . . . . . . . . . . . . . . . .  19
       5.1.2.  Denial-of-Service Resistance  . . . . . . . . . . . .  20
       5.1.3.  End-to-end security, protocol translation, and the
               role of middleboxes . . . . . . . . . . . . . . . . .  21
       5.1.4.  New network architectures and paradigm  . . . . . . .  22
     5.2.  Bootstrapping of a Security Domain  . . . . . . . . . . .  23
     5.3.  Operational Challenges  . . . . . . . . . . . . . . . . .  23
       5.3.1.  Group Membership and Security . . . . . . . . . . . .  23
       5.3.2.  Mobility and IP Network Dynamics  . . . . . . . . . .  25
     5.4.  Secure software update and cryptographic agility  . . . .  25
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