Book Image

IoT and Edge Computing for Architects - Second Edition

By : Perry Lea
Book Image

IoT and Edge Computing for Architects - Second Edition

By: Perry Lea

Overview of this book

Industries are embracing IoT technologies to improve operational expenses, product life, and people's well-being. An architectural guide is needed if you want to traverse the spectrum of technologies needed to build a successful IoT system, whether that's a single device or millions of IoT devices. IoT and Edge Computing for Architects, Second Edition encompasses the entire spectrum of IoT solutions, from IoT sensors to the cloud. It examines modern sensor systems, focusing on their power and functionality. It also looks at communication theory, paying close attention to near-range PAN, including the new Bluetooth® 5.0 specification and mesh networks. Then, the book explores IP-based communication in LAN and WAN, including 802.11ah, 5G LTE cellular, Sigfox, and LoRaWAN. It also explains edge computing, routing and gateways, and their role in fog computing, as well as the messaging protocols of MQTT 5.0 and CoAP. With the data now in internet form, you'll get an understanding of cloud and fog architectures, including the OpenFog standards. The book wraps up the analytics portion with the application of statistical analysis, complex event processing, and deep learning models. The book then concludes by providing a holistic view of IoT security, cryptography, and shell security in addition to software-defined perimeters and blockchains.
Table of Contents (17 chapters)
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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.


The first layer of hardware security is the establishment of a RoT. The 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 OS to the application. An 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 nonwritable memory to store the image and root key
  • One-time programmable memory using fuse bits for root key storage...