Cryptbird

Cryptbird is a thin wrapper around bcrypt-nodejs which provides BlueBird promisified versions of all bcrypt-nodejs's async methods.

Using Bluebird's promisifyAll() method to promisify all methods in bcrypt-nodejs does not work. This library manually promisifies all of the async functions and passes through both the synchronous functions and the original async functions from bcrypt-nodejs so developers can incrementally migrate their codebase without having to depend on both this package and bcrypt-nodejs. New Bluebird-promisified methods are provided as <methodName>Async. The original methods retain their original names. This package is a drop-in replacement for bcrypt-nodejs.

API

In addition to the original bcrypt-nodejs API, this package exposes three methods:

• genSaltAsync(rounds)- Generates a salt processed <rounds> rounds. Default rounds value is 10. Promise is resolved with the generated salt.
• hashAsync(data, salt)- Hashes <data> with <salt>. Promise is resolved with the hashed and salted data.
• compareAsync(value, encryptedValue)- Compares the raw <value> against the <encryptedValue>. Promise is resolved with true if the value is a match or false if not.

Example usage

Require the package

var cryptbird = require('cryptbird');

Generate a salt and encrypt a password

return cryptbird.genSaltAsync().then(function(generatedSalt) {
    return cryptbird.hashAsync(password, salt);
  }).then(function(hashedPassword) {
    // Store salted password in a database or your preferred persistent storage
  });

Check a password against the salted hashed stored value

// User enters password into a form. You have assigned that to the variable password.
// You pull the user's hashed password out of persisten storage and assign to the variable hashedPassword.
return cryptbird.compareAsync(password, hashedPassword).then(function(passwordMatches) {
  if (passwordMatches) {
    // The user's password matched. Do whatever your app needs to do to log the user in.
  } else {
    // The user's password did not match. Let the user know and keep them logged out.
  }
});

License

This package is provded under MIT license. Read the LICENSE file for details.