Why not transfer the private key? I encrypted it using a one-time pass and send it using email. I then decryped and installed to the other machine. Since I don

Why not transfer the private key? I encrypted it using a one-time pass and send it using email. I then decryped and installed to the other machine. Since I don't have the one time pass anymore the encrypted file is not usable anymore and I have the same key to both machines. Please explain any holes with that flow.