The idea is good, but over-engineered, it is way easier to use any of the plenty of legacy systems for the same purpose. You could make a key that only activates if the user has not log in in a month, but other than that, no point.
The idea is good, but over-engineered, it is way easier to use any of the plenty of legacy systems for the same purpose. You could make a key that only activates if the user has not log in in a month, but other than that, no point.
That's why we have special witnesses to verify the integrity if the owner is really deceased or not.