title: Apple Push Notification Authentication Key (Sandbox & Production)
body: <p>I recently noticed a new option when creating a certificate for a given iOS client.</p>
  
  <p>The option is titled </p>
  
  <blockquote>
    <p><strong>Apple Push Notification Authentication Key (Sandbox &amp; Production)</strong></p>
    
    <p>Get an authentication key to generate server-side tokens.  You can use
    these tokens as an alternative to certificates for your  notification
    requests. </p>
    
    <p>One authentication key can be used for multiple apps and does not
    expire.</p>
  </blockquote>
  
  <p>How does one go about setting this up? </p>