Connecting to Azure IoT Hub without DigiCert Baltimore Root certificate

Question

I am using MQTT on my device the Quectel BG95.

I am using th SAS token method of authentication.

I just noticed that if I do not apply the DigiCert Baltimore Root certificate to tcl/SSL connection, I am still able to successfully connect and communication.

Does this seem correct?

Answer 1

To establish a connection between our devices and the IoT Hub we use the MQTT protocol directly and do not rely on the IoT SDKs.

For the TLS connection it is required that the devices have access to the 'DigiCert Baltimore Root Certificate '.

We store this certificate on the devices during production, but they may not come online for a long time due to selling/installation delay. It is further important that we have a reasonable time period to update existing devices.

Reference Link:

https://docs.microsoft.com/en-us/azure/iot-hub/iot-hub-tls-support