Well, I am fairly sure that protocol i proposed is secure because it relies on the fact that public key cryptography works. Thing is that after both sides „agree” on new randomly generated key you can tell the operator that the key was doughnut but it won't matter anymore and session will remain secure. And operator is unable to insert his key because initial „easy” key was transmited using third party. One key can be reused (assuming you didnt tell it to operator) and it would still not matter because operator has 1 guess per session.

Its secure :)

Reply via email to