Book Image

Mastering Internet of Things

By : Peter Waher
Book Image

Mastering Internet of Things

By: Peter Waher

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. Mastering Internet of Things starts by presenting IoT fundamentals and the smart city. You will learn the important technologies and protocols that are used for the Internet of Things, their features, corresponding security implications, and practical examples on how to use them. This book focuses on creating applications and services for the Internet of Things. Further, you will learn to create applications and services for the Internet of Things. You will be discover various interesting projects and understand how to publish sensor data, control devices, and react to asynchronous events using the XMPP protocol. The book also introduces chat, to interact with your devices. You will learn how to automate your tasks by using Internet of Things Service Platforms as the base for an application. You will understand the subject of privacy, requirements they should be familiar with, and how to avoid violating any of the important new regulations being introduced. At the end of the book, you will have mastered creating open, interoperable and secure networks of things, protecting the privacy and integrity of your users and their information.
Table of Contents (24 chapters)
Title Page
Copyright and Credits
Packt Upsell

Protecting our web services

The login page described earlier only protects our Markdown content, not our dynamic web services. If you know the resource names of the web services, you can still extract all sensor data and control the actuator output, unauthenticated. To avoid this, we need to add an authentication layer on top of our web services. We can do this by using JWT (Java Web Tokens). These tokens are simple strings that are cryptographically signed by a server, and that can be easily transported in any type of machine-to-machine communication where you want to avoid sessions and login forms. The server can then validate the token by checking the signature. By adding the Waher.Security.JWT.UWP NuGet package to our SensorHttp and ActuatorHttp projects, we can use JWT to protect our web services.


For .NET standard, .NET Core, or traditional .NET Framework projects, you can use the Waher.Security.JWT NuGet instead.

Getting a session token

We begin by creating a token factory. It will...