Security Mechanism of Node.js

Node.js has several built-in security mechanisms and features designed to help developers secure their applications. While Node.js itself provides the tools to build secure systems, it’s important for developers to understand how to use these tools effectively and to follow security best practices.

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Here are some of the key security mechanisms and best practices associated with Node.js:

1. Built-in Security Features in Node.js:

a) HTTPS Module

• Node.js provides an https module that allows developers to create secure HTTP servers with SSL/TLS encryption.
• By using https, sensitive data (like passwords or credit card numbers) can be encrypted during transit, which helps prevent man-in-the-middle attacks.

const https = require('https');
const fs = require('fs');

const options = {
  key: fs.readFileSync('private-key.pem'),
  cert: fs.readFileSync('certificate.pem')
};

https.createServer(options, (req, res) => {
  res.writeHead(200);
  res.end('Hello, secure world!');
}).listen(443);

b) Security Headers