Steps to Set Up Node Project and Implement bcrypt
Step 1: You can visit the link to Install bcryptjs module. You can install this package by using this command.
npm install bcryptjs
Step 2: After installing bcryptjs module you can check your request version in the command prompt using the command.
npm version bcryptjs
Step 3: After that, you can create a folder and add a file for example index.js, To run this file you need to run the following command.
node index.js
Example: Implementation to show encryption in Node.js using bcryptjs module
// Filename - index.js
// Requiring module
const bcrypt = require('bcryptjs');
const password = 'pass123';
const hashedPassword;
// Encryption of the string password
bcrypt.genSalt(10, function (err, Salt) {
// The bcrypt is used for encrypting password.
bcrypt.hash(password, Salt, function (err, hash) {
if (err) {
return console.log('Cannot encrypt');
}
hashedPassword = hash;
console.log(hash);
bcrypt.compare(password, hashedPassword,
async function (err, isMatch) {
// Comparing the original password to
// encrypted password
if (isMatch) {
console.log('Encrypted password is: ', password);
console.log('Decrypted password is: ', hashedPassword);
}
if (!isMatch) {
// If password doesn't match the following
// message will be sent
console.log(hashedPassword + ' is not encryption of '
+ password);
}
})
})
})
Step to run the application: Run the application using the following command:
node index.js
Output: We will see the following output on the console screen.
$2a$10$4DRBPlbjKO7WuL2ndpbisOheLfgVwDlngY7t18/ZZBFNcW3HdWFGm Encrypted password is: pass123 Decrypted password is: $2a$10$4DRBPlbjKO7WuL2ndpbisOheLfgVwDlngY7t18/ZZBFNcW3HdWFGm
Password Encryption in Node.js using bcryptjs Module
When developing applications, one of the critical aspects of user authentication is ensuring that passwords are stored securely. Plain text storage of passwords is a significant security risk. Instead, passwords should be encrypted using strong hashing algorithms. In Node.js, one of the popular modules for this purpose is bcryptjs.