Azure IoT Hub
An Azure service that enables bidirectional communication between internet of things (IoT) devices and applications.
1,205 questions
Can't authenticate on IoT Hub - Not authorised
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Andrea Previtali
106
Reputation points
Hello everyone,
I'm experiencing a little problem and I don't know how I'm going to solve it.
We are working with a partner of ours, he has your Azure space on which he has an IoT Hub and I have machines that I need to have connected to his IoT Hub.
The machines have to authenticate with X.509 certificates.
I had our partner give me the certificate and the private key to create my certifies (in production I will obviously introduce intermediate elements).
I can't tell if I'm doing something wrong in the .conf file but this happens: I can create the certificates for my devices and I can sign them, but I can't authenticate when certain to connect the device to IoT Hub.
I used a .conf file I was using before, the environment should be the same, the only thing that changes is that our client's key no has password.
Instead, my old configuration was to use a password.
Could this be the cause of my issue?
How can I edit my configuration file?
The source file is taken from the one shown here
{count} votes
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Sander van de Velde | MVP 33,146 Reputation points MVP2024-04-23T18:09:31.83+00:00 Hello @Andrea Previtali ,
welcome to this moderated Azure community forum.
It's hard to say what is happening with the certificates.
First, have you tried to connect with a symmetric connectionstring? Just to see if you can check the connection?
Do you have access to the IoT Hub yourself? Can you check if the certificate is uploaded?
I recommend working closely with the partner to solve this.
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Andrea Previtali 106 Reputation points
2024-04-24T10:21:58.4066667+00:00 Hi @Sander van de Velde | MVP ,
Thank you very much for your response.
I did more than connect with a connection string, I did as follows:
I had a test certificate uploaded that was created following the guide you also linked me, with that certificate I signed certificates for a new test device. I can access IoT Hub without any problems with this configuration.
The problem is only when I use their certificate, I can sign the certificates for the test device but then I don't get authorization to connect to IoT Hub.
Their certificate is marked as verified on their IoT Hub.
I can't figure out if there is something wrong with the .conf file I use when creating the device certificates.
I'm really going mad since it is not exactly my area of expertise
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