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.

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Spis treści

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

• 1. Cryptography for Developers
• 2. Dealing with Binary and Random Data
• 3. File and Password Hashing with Node.js
• 4. Symmetric Encryption in Node.js
• 5. Using Asymmetric and Hybrid Encryption in Node.js
• 6. Digital Signatures with Node.js and Trust
• 7. Introduction to Cryptography in the Browser
• 8. Performing Common Cryptographic Operations in the Browser