MFA using speakeasy

mfa-speakeasy

# https://www.npmjs.com/package/speakeasy

const speakeasy = require('speakeasy');

// Generate Key
var secret = speakeasy.generateSecret();

// secret sample
{ ascii: '6v[qFO^%vfqL%C,Kdv*oCqTGZ0z^p]vU',
  hex: '36765b71464f5e257666714c25432c4b64762a6f437154475a307a5e705d7655',
  base32: 'GZ3FW4KGJ5PCK5TGOFGCKQZMJNSHMKTPINYVIR22GB5F44C5OZKQ',
  otpauth_url: 'otpauth://totp/SecretKey?secret=GZ3FW4KGJ5PCK5TGOFGCKQZMJNSHMKTPINYVIR22GB5F44C5OZKQ' }

// Timebase Token
var token = speakeasy.totp({
  secret: secret.base32,
  encoding: 'base32'
});

// Token Validation
var tokenValidates = speakeasy.totp.verify({
  secret: secret.base32,
  encoding: 'base32',
  token: <token value>,
  window: 2
});

// QR Code generation using qrcode package
// npm install --save qrcode
var QRCode = require('qrcode');
QRCode.toDataURL(secret.otpauth_url, function(err, data_url) {
  console.log(data_url);
  // Display this data URL to the user in an <img> tag
  write('<img src="' + data_url + '">');
});