Essential Cryptography for JavaScript Developers
Alessandro Segala
- 220 pages
- English
- ePUB (adapté aux mobiles)
- Disponible sur iOS et Android
Essential Cryptography for JavaScript Developers
Alessandro Segala
Ă propos de ce livre
Discover how to take advantage of common cryptographic operations to build safer apps that respect users' privacy with the help of examples in JavaScript for Node.js and browsersKey Featuresâą Understand how to implement common cryptographic operations in your code with practical examplesâą Learn about picking modern safe algorithms, which libraries you should rely on, and how to use them correctlyâą Build modern and secure applications that respect your users' privacy with cryptographyBook DescriptionIf 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.What you will learnâą Write JavaScript code that uses cryptography running within a Node.js environment for the server-side or in frontend applications for web browsersâą Use modern, safe hashing functions for calculating digests and key derivation, including SHA-2 and Argon2âą Practice encrypting messages and files with a symmetric key using AES and ChaCha20-Poly1305âą Use asymmetric and hybrid encryption, leveraging RSA and Elliptic Curve Cryptography with ECDH and ECIESâą Calculate and verify digital signatures using RSA and ECDSA/EdDSAâą Manage passwords and encryption keys safelyWho this book is forThis 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.
Foire aux questions
Informations
Part 1 â Getting Started
- Chapter 1, Cryptography for Developers
- Chapter 2, Dealing with Binary and Random Data
Chapter 1: Cryptography for Developers
- An overview of what cryptography is and why it matters to developers
- A definition of "safe" in the context of cryptography
- Types and "layers" of encryption
What is cryptography and why should a developer care?
Protecting secretsâŠ
âŠand the other uses of modern cryptography
- In Chapter 3, File and Password Hashing with Node.js, we'll learn about hashing, which is a one-way cryptographic operation that allows you to derive a fixed-length digest for any message. This is used for purposes including checking the integrity of files or messages, generating identifiers and encryption keys, and protecting passwords.
- In Chapter 4, Symmetric Encryption in Node.js, and Chapter 5, Using Asymmetric and Hybrid Encryption in Node.js, we'll look at data encryption and decryption using various kinds of ciphers.
- In Chapter 6, Digital Signatures with Node.js and Trust, we'll learn how cryptography can be used to create and validate digital signatures, which can be used (among other things) to authenticate the author of a message, certifying its provenance, or preventing repudiation.
Why this matters to developers
Table des matiĂšres
- Essential Cryptography for JavaScript Developers
- Contributors
- Preface
- Part 1 â Getting Started
- Chapter 1: Cryptography for Developers
- Chapter 2: Dealing with Binary and Random Data
- Part 2 â Using Common Cryptographic Operations with Node.js
- Chapter 3: File and Password Hashing with Node.js
- Chapter 4: Symmetric Encryption in Node.js
- Chapter 5: Using Asymmetric and Hybrid Encryption in Node.js
- Chapter 6: Digital Signatures with Node.js and Trust
- Part 3 â Cryptography in the Browser
- Chapter 7: Introduction to Cryptography in the Browser
- Chapter 8: Performing Common Cryptographic Operations in the Browser
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