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Implementation of Master Password for nodejs and browser



  • Node.js (v4.0.0+)

Note: this package uses scrypt which is built with node-gyp so you might need to compile C code. Blame node-gyp.

First, install Node.js, and then open a terminal and run node -v and npm -v to make sure Node is installed correctly.

Now we can install the package.

$ npm install --save node-mpw

Once it's installed and in your node_modules folder, you can now run the script! Here's an example:

import * as mpw from 'node-mpw'

const username = 'username'
const password = 'password'
const site = ''

const key = mpw.generateKey(username, password)
const generated = mpw.generatePassword(site, key, 1, 'long', 3)

API Reference


mpw.generateKey(name: string, password: string, version?: string, namespace?: string): Buffer

Calculate the master key from a user's name and master password.


  • name: string The desired username.
  • password: string The desired master password.
  • version?: string The algorithm version being used for this process.
  • namespace? string The namespace used as a salt to calculate the key.

Returns: a key generated from the scrypt algorithm.


mpw.generatePassword(site: string, key: Buffer, counter?: number, template?: string, version?: number, namespace?: string): string

Encode a site password using the site's type template.


  • site: string The site name. The bare domain name is an ideal choice.
  • key: Buffer An scrypt-hashed key generated from the generateKey() function.
  • counter?: number An integer that can be incremented when the user needs a new password for the site.
  • template?: string The password template that the user chooses.
  • version?: number The algorithm version being used for this process.
  • namespace?: string The namespace used as a salt to calculate the seed.

Returns: the final, generated password.


Issues and Pull Requests are welcome! Please read our Contributing Guidelines & Code of Conduct beforehand.

Reading the commit log

Our commit logs are Commitizen-friendly. With Commitizen, the header of every commit message has to include a type, an optional scope and a subject with the following format:

<type>(<scope>): <subject>

You can use one of the following methods to use Commitizen.

Option 1: Install Commitizen by running npm install -g commitizen, and run git cz instead of git commit when you want to commit. Follow the instructions on the next screen.

Option 2: When you run npm install the core commitizen library is also saved as devDependencies. You can simply run npm run commit instead of git commit to enable Commitizen. Follow the instructions on the next screen.

Option 3: Manually typing the commits altogether. We use the following Commitizen tags.

  • feat: A new feature
  • fix: A bug fix
  • docs: Documentation only changes
  • style: Changes that do not affect the meaning on the code (white-space, formatting, missing semi-colons, etc)
  • refactor: A code change that neither fixes a bug or adds a feature
  • perf: A code change that improves performance
  • test: Adding missing tests
  • build: Changes that affect the build system or external dependencies (example scopes: gulp, broccoli, npm)
  • ci: Changes to our CI configuration files and scripts (example scopes: Travis, Circle, BrowserStack, SauceLabs)
  • chore: Changes to the build process or auxiliary tools and libraries such as documentation generation
  • revert: Reverts a previous commit


🔑 Implementation of Master Password for nodejs and browser





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