Where do I obtain an iOS PEM key? Craig Conover December 10, 2020 09:55 Updated Please see the current PubNub Push Notifications documentation. Related articles Creating a signature using your PubNub secret key How can I troubleshoot my push notification issues? Where is APNS Explained? What is a valid APNS message payload? How do I determine which and/or how many devices a given channel is registered with?