Book Image

Embedded Systems Architecture

By : Daniele Lacamera
Book Image

Embedded Systems Architecture

By: Daniele Lacamera

Overview of this book

Embedded systems are self-contained devices with a dedicated purpose. We come across a variety of fields of applications for embedded systems in industries such as automotive, telecommunications, healthcare and consumer electronics, just to name a few. Embedded Systems Architecture begins with a bird's eye view of embedded development and how it differs from the other systems that you may be familiar with. You will first be guided to set up an optimal development environment, then move on to software tools and methodologies to improve the work flow. You will explore the boot-up mechanisms and the memory management strategies typical of a real-time embedded system. Through the analysis of the programming interface of the reference microcontroller, you'll look at the implementation of the features and the device drivers. Next, you'll learn about the techniques used to reduce power consumption. Then you will be introduced to the technologies, protocols and security aspects related to integrating the system into IoT solutions. By the end of the book, you will have explored various aspects of embedded architecture, including task synchronization in a multi-threading environment, and the safety models adopted by modern real-time operating systems.
Table of Contents (18 chapters)
Title Page
Copyright and Credits
Packt Upsell

Transport Layer Security

Link-layer protocols often provide some basic security mechanisms to guarantee authentication of the client connecting to a specific network, and encrypt data by using symmetric keys such as AES. In most cases, authentication at the link layer is sufficient to guarantee a basic level of security. Nevertheless, pre-shared, well-known keys often used in LR-WPAN network stacks may be vulnerable to multiple kinds of attacks, and using a pre-shared key would give an attacker the opportunity to decipher any traffic that has been previously captured on the same link.

A device that takes part in an IoT-distributed system is required to implement a higher grade of security, especially in embedded devices not protecting the memory in any way, where any backdoor means that attackers can take control of the device, and retrieve all the sensitive information, such as private keys used for authentication and encryption in the communication with remote systems.

Transport Layer Security...