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Usually, by applying for and being granted a certificate from one of the established CAs. A CA certified by another is called a subordinate CA. A CA that is not certified by any other, but relies solely on its own reputation, is called a root CA.
How do I make a signed certificate?
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- Open Internet Information Services (IIS) Manager.
- Select the server where you want to generate the certificate.
- Navigate to Server Certificates.
- Select Create a New Certificate.
- Enter your CSR details.
- Select a cryptographic service provider and bit length.
- Save the CSR.
- Generate the Order.
How to create a subordinate CA certificate with Microsoft certificate server?
This document shows how to create a subordinate CA certificate with Microsoft Certificate Server. Access the certificate server interface by browsing to http:// /certsrv. On the welcome screen, select Request a Certificate. On the next page, choose to submit an advanced certificate request.
Browse to where the certificate request for the subordinate certificate authority is located and open the file. The certificate request will then be listed under Pending Requests on the root CA. Right-click the request, choose All Tasks and Issue. The subordinate CA’s certificate will now be issued and we can copy it to that CA.
Do you need a subordinate CA to sign a certificate?
Because you can use the root CA to sign certificates, creating a subordinate CA isn’t strictly necessary. Having a subordinate CA does, however, mimic real world certificate hierarchies in which the root CA is kept offline and subordinate CAs issue client certificates.
How to create X.509 CA signed authentication certificates?
Navigate to your IoT Hub in the Azure portal and create a new IoT device identity with the following values: Provide the Device ID that matches the subject name of your device certificates. Select the X.509 CA Signed authentication type. Select Save. To generate a client certificate, you must first generate a private key.