Book Image

Hands-On Cryptography with Python

By : Samuel Bowne
Book Image

Hands-On Cryptography with Python

By: Samuel Bowne

Overview of this book

Cryptography is essential for protecting sensitive information, but it is often performed inadequately or incorrectly. Hands-On Cryptography with Python starts by showing you how to encrypt and evaluate your data. The book will then walk you through various data encryption methods,such as obfuscation, hashing, and strong encryption, and will show how you can attack cryptographic systems. You will learn how to create hashes, crack them, and will understand why they are so different from each other. In the concluding chapters, you will use three NIST-recommended systems: the Advanced Encryption Standard (AES), the Secure Hash Algorithm (SHA), and the Rivest-Shamir-Adleman (RSA). By the end of this book, you will be able to deal with common errors in encryption.
Table of Contents (9 chapters)

What's next?

Internet of Things (IoT) has a promising future and will soon connect billions of devices. For IoT, security has always been a major concern. But the good news is that cryptography offers various options to secure IOT from hackers; hence, it is a key to the coming era of IoT.

Cryptography within IoT

When we talk about using cryptography within IoT, we are talking about using cryptography across many layers of the communication stack. If we look at the OSI model, we can see that crypto is used at Layer 2 and up with linking operating at level 2, networking operating at layer 3, and transporting operating at layer 4:

At the Application Layer, Cryptography is also used to protect communication through both authentication and encryption. Before we begin our description about specific cryptographic approaches for IOT protocols, let’s first talk about the ready availability of exploitation tools for existing wireless protocols. As IOT matures, keep in mind that there are many tools available...