Deterministic Networking (DetNet) Security Considerations
draft-ietf-detnet-security-04
Internet Engineering Task Force T. Mizrahi
Internet-Draft HUAWEI
Intended status: Informational E. Grossman, Ed.
Expires: September 3, 2019 DOLBY
A. Hacker
MISTIQ
S. Das
Applied Communication Sciences
J. Dowdell
Airbus Defence and Space
H. Austad
Cisco Systems
K. Stanton
INTEL
N. Finn
HUAWEI
March 2, 2019
Deterministic Networking (DetNet) Security Considerations
draft-ietf-detnet-security-04
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 7.
Mizrahi, et al. Expires September 3, 2019 [Page 1]
Internet-Draft DetNet Security March 2019
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 September 3, 2019.
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 4
2. Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . 5
3. Security Threats . . . . . . . . . . . . . . . . . . . . . . 6
3.1. Threat Model . . . . . . . . . . . . . . . . . . . . . . 6
3.2. Threat Analysis . . . . . . . . . . . . . . . . . . . . . 7
3.2.1. Delay . . . . . . . . . . . . . . . . . . . . . . . . 7
3.2.1.1. Delay Attack . . . . . . . . . . . . . . . . . . 7
3.2.2. DetNet Flow Modification or Spoofing . . . . . . . . 7
3.2.3. Resource Segmentation or Slicing . . . . . . . . . . 7
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