My your posts are very long. Thank you for the resteem. Yes you have keys. You simply have to go to your wallet and decrypt them for you to record physically. I would say that if you are concerned with security then change your keys. Keys are encrypted by the blockchain and can't simply be changed. It is like a password in a database. Not even the programmer programs the system to decrypt the passwords.
I have tried that. I don't have my master key. Are you saying I can find my private master key via another key?
I dont believe that is possible. I write down all of my keys to protect my accounts in a journal. I think you need the help of someone smarter. I will keep my eyes peeled for key recovery information.
I don't have all my keys. I never did in the first place.