Search icon CANCEL
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Conferences
Free Learning
Arrow right icon
Arrow up icon
GO TO TOP
Practical Hardware Pentesting

You're reading from   Practical Hardware Pentesting A guide to attacking embedded systems and protecting them against the most common hardware attacks

Arrow left icon
Product type Paperback
Published in Apr 2021
Publisher Packt
ISBN-13 9781789619133
Length 382 pages
Edition 1st Edition
Arrow right icon
Author (1):
Arrow left icon
Jean-Georges Valle Jean-Georges Valle
Author Profile Icon Jean-Georges Valle
Jean-Georges Valle
Arrow right icon
View More author details
Toc

Table of Contents (20) Chapters Close

Preface 1. Section 1: Getting to Know the Hardware
2. Chapter 1: Setting Up Your Pentesting Lab and Ensuring Lab Safety FREE CHAPTER 3. Chapter 2: Understanding Your Target 4. Chapter 3: Identifying the Components of Your Target 5. Chapter 4: Approaching and Planning the Test 6. Section 2: Attacking the Hardware
7. Chapter 5: Our Main Attack Platform 8. Chapter 6: Sniffing and Attacking the Most Common Protocols 9. Chapter 7: Extracting and Manipulating Onboard Storage 10. Chapter 8: Attacking Wi-Fi, Bluetooth, and BLE 11. Chapter 9: Software-Defined Radio Attacks 12. Section 3: Attacking the Software
13. Chapter 10: Accessing the Debug Interfaces 14. Chapter 11: Static Reverse Engineering and Analysis 15. Chapter 12: Dynamic Reverse Engineering 16. Chapter 13: Scoring and Reporting Your Vulnerabilities 17. Chapter 14: Wrapping It Up – Mitigations and Good Practices 18. Assessments 19. Other Books You May Enjoy

The sensor blocks

The sensors provide the CPU with input from the real world. Sensors are external peripherals that allow the system to sense the real world. They usually fall into two categories:

  • Analog sensors
  • Digital sensors

Analog sensors

Analog sensors usually trigger a change in their electrical characteristics (through a form of voltage divider or another physical effect) relative to the physical quantity they measure and provide the CPU with a variable voltage (sometimes amplified). This voltage is read through an Analog to Digital Converter (ADC), which is a peripheral within the CPU chip itself or an external chip.

A lot of real-world physical characteristics can be read through analog sensors, as shown in the following table:

There is an entire field of engineering dedicated to creating analog sensors. From a pentesting point of view, it is always interesting to research how they work since it can...

lock icon The rest of the chapter is locked
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at AU $24.99/month. Cancel anytime