Скачать или смотреть Express.js Tutorial Session 13 | Password Encryption using bcrypt | Secure User Signup

Welcome to Express.js Tutorial Session 13 🚀 by Rehan Kapaya!

In this session, we’ll add Password Encryption (Hashing) to our User Signup API using bcrypt — one of the most secure and popular libraries used in modern backend development.

This tutorial is part of the Express.js Authentication Series, where we build a complete authentication system step by step — from Signup and Login to JWT Tokens and Protected Routes.

By the end of this video, you’ll understand how password encryption works, why it’s important, and how to implement it safely in your Express.js application.



✅ What You’ll Learn in Session 14

Why we encrypt passwords before saving
Installing and using bcrypt for password hashing
Implementing password encryption in the User Signup Controller
Understanding the difference between hashing and encryption
Storing encrypted passwords securely in MongoDB
Testing signup with encrypted passwords in Postman
Comparing plain vs hashed passwords
Preparing for upcoming sessions (Login + JWT Auth)

This session ensures that your user data is secure and follows real-world security standards used in professional backend systems.


🧩 Core Concepts Covered

bcrypt.js password hashing
Using bcrypt.hash() and bcrypt.genSalt()
Preventing plain-text password storage
Understanding one-way hashing
Handling async functions with async/await
Secure database practices for authentication systems
Best practices for handling sensitive user information

🧠 Why Password Encryption is Critical

Storing plain-text passwords is one of the biggest security risks in any web application.
If your database gets compromised, unencrypted passwords can expose users’ data.

By using bcrypt hashing, we ensure that even if attackers access the database, they cannot reverse-engineer the original passwords.
This session upgrades your authentication logic from basic to secure and production-ready — a must for any real-world backend developer.


🛠️ Technologies Used

Node.js (Backend runtime)
Express.js (Web framework)
MongoDB Atlas (Database)
Mongoose (Data modeling)
bcryptjs (Password hashing library)
dotenv (For environment variables)
Postman (For API testing)

🌟 Why You Should Watch

This session is a must-watch for every backend or MERN developer who wants to learn secure authentication.
Password encryption is one of the most critical security practices — and understanding it will help you build trustworthy applications.

You’ll not only learn how to hash passwords but also gain insight into why encryption matters and how it protects both users and developers from data breaches.

🙌 Stay Connected – Rehan Kapaya

If this video helped you understand password encryption in Express.js, make sure to:
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I regularly post practical, beginner-friendly tutorials on:

Express.js & Node.js
MongoDB & Mongoose
React.js & MERN Stack Development
Authentication (Signup, Login, JWT)
Backend APIs & Integration
Project Deployment
Follow along to become a Full Stack Developer in 2025!