title: Security key and cert for mosca MQTT broker
body: <p>I am trying to set up Mosca MQTT broker which is based on node.js</p>
  
  <p>From the documentation below,
  <a href="https://github.com/mcollina/mosca/wiki/TLS-SSL-Configuration" rel="nofollow">https://github.com/mcollina/mosca/wiki/TLS-SSL-Configuration</a></p>
  
  <pre><code>var mosca = require('mosca')
  
  var SECURE_KEY = __dirname + '/../../test/secure/tls-key.pem';
  var SECURE_CERT = __dirname + '/../../test/secure/tls-cert.pem';
  </code></pre>
  
  <p>Where do I get <code>tls-key.pem</code> and <code>tls-cert.pem</code>?</p>