The AN12199 describes how you can leverage the A71CH security IC to easily and quickly connect your own device to Google Cloud IoT Core. The document details how to configure a Google Cloud IoT Core account, how to register your device into your Google Cloud IoT Core account and how to authenticate your device based on the credenials stored in A71CH. In addition, it includes a guide describing how to use NXP's FRDM-K64F and the A71CH Arduino compatible development kit (OM3710/A71CHARD) to establish a secure connection with Google Cloud IoT Core.