Signature value create by Plugin C# Winform and add it to PDF via Pyhanko ?

[anhbq97]

I am using PyHanko to add a signature to a PDF after obtaining the signature value signed by a USB device via a C# plugin using the System.Security.Cryptography.RSA rsa.SignHash() method. I am unsure how to apply this signature to the PDF using PyHanko. Can you help me with this?