Google Cloud

IoT Core’s device registry enforces RSA and EC public key authentication for every device, ensuring only enrolled devices can publish messages without username/password credentials that scale poorly. Registry groups allow applying identical IAM policies to device fleets, simplifying permission management for large deployments with role-based access. Cloud Pub/Sub topic subscriptions fan device telemetry to multiple consumers simultaneously — a Dataflow pipeline for real-time dashboards and a BigQuery sink for historical analysis — from a single MQTT ingest path. Config and state APIs push device configuration updates over the MQTT backhaul and receive acknowledgement, enabling reliable OTA parameter updates. Vertex AI Workbench notebooks pre-integrated with IoT Core data simplify building ML models directly from device telemetry without ETL pipeline development.