White paper on ransomware decryption process

I want assistance for writing a whitepaper related to Ransomware decryption process. There will be requirement for technical knowledge about how ransomware works and the whitepaper needs to only focus on the decryption process. In other words if a company receives the decryption key from the bad actor then the process of decrypting the data, benchmarking of decryption of data etc. needs to be covered in the whitepaper.