How can I use crypto libraries in my project?

How can I use crypto libraries in my project?

You can use crypto libraries to implement encryption, decryption, and secure data handling in your project. What specific functionality are you looking for?

I need to encrypt user passwords securely.

For password encryption, you can use libraries like bcrypt or Argon2. They provide strong hashing algorithms. Would you like code examples?

Yes, please provide an example using bcrypt.

Here's a simple example:

const bcrypt = require('bcrypt');

const saltRounds = 10;
const myPlaintextPassword = 'password123';

bcrypt.hash(myPlaintextPassword, saltRounds, function(err, hash) {
  // Store hash in your password DB.
});

This hashes the password securely.

How do I verify the password later?

You can verify the password using bcrypt.compare(). Here's how:

bcrypt.compare(myPlaintextPassword, hash, function(err, result) {
  // result == true if the password matches
});