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Key benefits

Understand how to implement common cryptographic operations in your code with practical examples

Learn about picking modern safe algorithms, which libraries you should rely on, and how to use them correctly

Build modern and secure applications that respect your users’ privacy with cryptography

Description

If you’re a software developer, this book will give you an introduction to cryptography, helping you understand how to make the most of it for your applications. The book contains extensive code samples in JavaScript, both for Node.js and for frontend apps running in a web browser, although the core concepts can be used by developers working with any programming language and framework. With a purely hands-on approach that is focused on sharing actionable knowledge, you’ll learn about the common categories of cryptographic operations that you can leverage in all apps you’re developing, including hashing, encryption with symmetric, asymmetric and hybrid ciphers, and digital signatures. You’ll learn when to use these operations and how to choose and implement the most popular algorithms to perform them, including SHA-2, Argon2, AES, ChaCha20-Poly1305, RSA, and Elliptic Curve Cryptography. Later, you’ll learn how to deal with password and key management. All code in this book is written in JavaScript and designed to run in Node.js or as part of frontend apps for web browsers. By the end of this book, you'll be able to build solutions that leverage cryptography to protect user privacy, offer better security against an expanding and more complex threat landscape, help meet data protection requirements, and unlock new opportunities.

Who is this book for?

This cryptography book is an introductory guide for software developers who don’t necessarily have a background in cryptography but are interested in learning how to integrate it in their solutions, correctly and safely. You'll need to have at least intermediate-level knowledge of building apps with JavaScript and familiarity with Node.js to make the most of this book.

What you will learn

Write JavaScript code that uses cryptography running within a Node.js environment for the server-side or in frontend applications for web browsers

Use modern, safe hashing functions for calculating digests and key derivation, including SHA-2 and Argon2

Practice encrypting messages and files with a symmetric key using AES and ChaCha20-Poly1305

Use asymmetric and hybrid encryption, leveraging RSA and Elliptic Curve Cryptography with ECDH and ECIES

Calculate and verify digital signatures using RSA and ECDSA/EdDSA

Manage passwords and encryption keys safely

What do you get with eBook?

Instant access to your Digital eBook purchase

Download this book in EPUB and PDF formats

Access this title in our online reader with advanced features

DRM FREE - Read whenever, wherever and however you want

AI Assistant (beta) to help accelerate your learning

Frequently bought together

Modern Frontend Development with Node.js

AU$53.99

Essential Cryptography for JavaScript Developers

AU$56.99

AU$67.99

Total AU$ 178.97

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Alfonso Carrillo Jun 25, 2022

I found the book very informative, easy to understand and insightful. The explanations of concepts and examples were clearly laid out and helpful.

Amazon Verified review

Manpreet Singh Minhas Jun 13, 2022

A hands-on book with practical coding examples for cryptography.

Amazon Customer Mar 08, 2022

Cryptography is a subject that I often deal with but haven't really understood since the subject can be so dry. This book has been great in providing easy to understand context and giving a solid overview of what you need to know. I am very happy to finally have a good grip on cryptography while also having learned some specific usages in code.

Loyce Dias Apr 24, 2022

As Front-end Developers, it is our responsibility to make sure user data is secure and protected.This book provided simple explanations and day to day examples, very simple to understand how, why, when and which method to use.I'd recommend this book to anyone having at least some knowledge of coding/technology and who are curious to know how their data should or is being handled in the digital world.There are very few books that engage me to read. This was one of them!

Alisson Machado Jul 22, 2022

Very good to learn more about how cryptography works with Javascript, gave me really good insights

Essential Cryptography for JavaScript Developers: A practical guide to leveraging common cryptographic operations in Node.js and the browser

What do you get with eBook?