Node.js Crypto (Full Tutorial) – Hash, OTP Generation, Encrypt & Decrypt | Part 17

Published: 24 December 2025
on channel: CodingHunger

495

In this video, we will learn the Node.js Crypto Module in a simple and practical way.
Crypto is one of the most powerful built-in modules in Node.js used for security purposes, such as hashing, OTP generation, password protection, encryption, and decryption.

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🔥 What You Will Learn in This Video:

✔ What is the Crypto Module in Node.js?
✔ Hashing in Node.js (SHA256, SHA512, MD5, etc.)
✔ Creating secure OTPs using Crypto
✔ Password hashing for authentication
✔ Symmetric Encryption (AES-256)
✔ Decryption of encrypted data
✔ Generating random bytes & tokens
✔ Real-world use cases: Login, payments, APIs
✔ Complete beginner-friendly explanation

This tutorial is perfect for backend developers, security learners, and Node.js beginners.

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