Deterministic Networking (DetNet) Security Considerations
draft-sdt-detnet-security-00

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Internet Engineering Task Force                               T. Mizrahi
Internet-Draft                                                   MARVELL
Intended status: Informational                          E. Grossman, Ed.
Expires: September 14, 2017                                        DOLBY
                                                               A. Hacker
                                                                  MISTIQ
                                                                  S. Das
                                          Applied Communication Sciences
                                                              J. Dowdell
                                                Airbus Defence and Space
                                                          March 13, 2017

       Deterministic Networking (DetNet) Security Considerations
                      draft-sdt-detnet-security-00

Abstract

   A deterministic network is one that can carry data flows for real-
   time applications with extremely low data loss rates and bounded
   latency.  Deterministic networks have been successfully deployed in
   real-time operational technology (OT) applications for some years
   (for example [ARINC664P7]).  However, such networks are typically
   isolated from external access, and thus the security threat from
   external attackers is low.  IETF Deterministic Networking (DetNet)
   specifies a set of technologies that enable creation of deterministic
   networks on IP-based networks of potentially wide area (on the scale
   of a corporate network) potentially bringing the OT network into
   contact with Information Technology (IT) traffic and security threats
   that lie outside of a tightly controlled and bounded area (such as
   the internals of an aircraft).  These DetNet technologies have not
   previously been deployed together on a wide area IP-based network,
   and thus can present security considerations that may be new to IP-
   based wide area network designers.  This draft, intended for use by
   DetNet network designers, provides insight into these security
   considerations.  In addition, this draft collects all security-
   related statements from the various DetNet drafts (Architecture, Use
   Cases, etc) into a single location Section 4.

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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   Drafts is at http://datatracker.ietf.org/drafts/current/.

Mizrahi, et al.        Expires September 14, 2017               [Page 1]
Internet-Draft               DetNet Security                  March 2017

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
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   This Internet-Draft will expire on September 14, 2017.

Copyright Notice

   Copyright (c) 2017 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Abbreviations . . . . . . . . . . . . . . . . . . . . . . . .   4
   3.  Security Threats  . . . . . . . . . . . . . . . . . . . . . .   5
     3.1.  Threat Model  . . . . . . . . . . . . . . . . . . . . . .   5
     3.2.  Threat Analysis . . . . . . . . . . . . . . . . . . . . .   5
       3.2.1.  Threats Related to Delay  . . . . . . . . . . . . . .   5
         3.2.1.1.  Delay Attack  . . . . . . . . . . . . . . . . . .   5
       3.2.2.  Threats Related to DetNet Flow Identification . . . .   5
         3.2.2.1.  DetNet Flow Modification or Spoofing  . . . . . .   6
       3.2.3.  Threats Related to Resource Segmentation or Slicing .   6
         3.2.3.1.  Inter-segment Attack  . . . . . . . . . . . . . .   6
       3.2.4.  Threats Related to Packet Replication and Elimination   6
         3.2.4.1.  Replication: Increased Attack Surface . . . . . .   6
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