Book Image

Practical Internet of Things Security - Second Edition

By : Brian Russell, Drew Van Duren
Book Image

Practical Internet of Things Security - Second Edition

By: Brian Russell, Drew Van Duren

Overview of this book

With the advent of the Internet of Things (IoT), businesses have to defend against new types of threat. The business ecosystem now includes the cloud computing infrastructure, mobile and fixed endpoints that open up new attack surfaces. It therefore becomes critical to ensure that cybersecurity threats are contained to a minimum when implementing new IoT services and solutions. This book shows you how to implement cybersecurity solutions, IoT design best practices, and risk mitigation methodologies to address device and infrastructure threats to IoT solutions. In this second edition, you will go through some typical and unique vulnerabilities seen within various layers of the IoT technology stack and also learn new ways in which IT and physical threats interact. You will then explore the different engineering approaches a developer/manufacturer might take to securely design and deploy IoT devices. Furthermore, you will securely develop your own custom additions for an enterprise IoT implementation. You will also be provided with actionable guidance through setting up a cryptographic infrastructure for your IoT implementations. You will then be guided on the selection and configuration of Identity and Access Management solutions for an IoT implementation. In conclusion, you will explore cloud security architectures and security best practices for operating and managing cross-organizational, multi-domain IoT deployments.
Table of Contents (19 chapters)
Title Page
Copyright and Credits
Dedication
About Packt
Contributors
Preface
Index

Defining your security policies


Define your IoT system technical security policies. Use automated tools to check for compliance with these policies whenever possible. Security policies for your system will vary based on unique system characteristics, but some recommended policies include:

  • Secure communications:
    • All communications are authenticated and encrypted
    • TCP communications are encrypted using TLS 1.2 or higher
    • TLS communications are authenticated using client/server certificates
    • Unneeded ports/services are disabled
    • Outbound communications that did not originate from a device are rejected (DENY)
  • Cryptography:
    • Only approved cryptographic ciphers are used within the system
    • Only approved key lengths are used within the system
    • Devices are configured to avoid negotiating unapproved cryptographic algorithms and protocols (negotiating downwards)
  • Key and certificate management:
    • Certificate lifetimes are limited to no more than three years' duration
    • All key material is stored in a trusted enclave/element...