Book Image

Mastering IOT

By : Colin Dow, Perry Lea
Book Image

Mastering IOT

By: Colin Dow, Perry Lea

Overview of this book

The Internet of Things (IoT) is the fastest growing technology market. Industries are embracing IoT technologies to improve operational expenses, product life, and people's well-being. We’ll begin our journey with an introduction to Raspberry Pi and quickly jump right into Python programming. We’ll learn all concepts through multiple projects, and then reinforce our learnings by creating an IoT robot car. We’ll examine modern sensor systems and focus on what their power and functionality can bring to our system. We’ll also gain insight into cloud and fog architectures, including the OpenFog standards. The Learning Path will conclude by discussing three forms of prevalent attacks and ways to improve the security of our IoT infrastructure. By the end of this Learning Path, we will have traversed the entire spectrum of technologies needed to build a successful IoT system, and will have the confidence to build, secure, and monitor our IoT infrastructure. This Learning Path includes content from the following Packt products: Internet of Things Programming Projects by Colin Dow Internet of Things for Architects by Perry Lea
Table of Contents (34 chapters)
Title Page
Copyright
About Packt
Contributors
Preface
Free Chapter
1
The IoT Story
Index

Physical and hardware security


Many IoT deployments will be in remote and isolated areas leaving sensors and edge routers vulnerable to physical attack. Additionally, the hardware itself needs modern protection mechanisms common in processors and the circuitry of mobile devices and personal electronics. 

Root of Trust

The first layer of hardware security is the establishment of a Root of Trust. The Root of Trust (RoT) is a hardware-validated boot process that ensures the first executable opcode starts from an immutable source. This is the anchor of the boot process that subsequently plays a role in bootstrapping the rest of the system from BIOS to the operating system to the application. A RoT is a baseline defense against a rootkit. 

Each phase validates the next phase in the boot process and builds a Chain of Trust. An RoT can have different starting methods such as:

  • Boot from ROM or a non-writable memory to store the image and root key
  • One-time programmable memory using fuse bits for root...