Bosch IoT Hub provides various authentication mechanisms for IoT devices:
pre-shared keys, or
In scaling IoT projects the approach with X.509 certificates is widespread and considered very secure.
To recognize any device certificate, the CA certificate with which the device certificate was signed has to be uploaded in the Bosch IoT Hub.
With the latest update, we provide a new REST-API. This allows users to manage CA certificates by themselves, including upload, renewal, deletion of CA certificates.