How to Sign a JSON Using USB DSC Hardware

I am working on a project where I need to sign a JSON object using a Digital Signature Certificate (DSC) stored on a USB token.


I understand that the private key is not directly extractable from the hardware for security reasons. Instead, the signing operation should be performed by the DSC hardware itself.


Here’s what I need help with:


Accessing the DSC Hardware:


What tools or libraries are needed to interact with USB DSC hardware? How can I communicate with the USB token to perform signing?


I tried using C# code to sign JSON with a USB DSC hardware, but it didn’t work