So, what you are saying is that nobody else, but you, should ever have access to your private key, right? I'm pretty sure that's PKI 101, which I think was Karu

So, what you are saying is that nobody else, but you, should ever have access to your private key, right? I'm pretty sure that's PKI 101, which I think was Karunamon's point; and, I'm pretty sure the solution to your proposed 'weakness' in this system is not technical.