> Also, I can't imagine it's very convenient to manage a large number of separate keys. You can have one secret master key and then derive many keys from that

> Also, I can't imagine it's very convenient to manage a large number of separate keys. You can have one secret master key and then derive many keys from that [1]. Without the master key you cannot tell that they are linked. [1] https://en.m.wikipedia.org/wiki/Key_derivation_function https://en.m.wikipedia.org/wiki/Key_derivation_function