Better secret sharing

I like this one because it reminds me of the scene in War Games where both military guys have to turn their keys simultaneously to get the launch codes. Below is the method for sharing information with two or more people, but they won’t be able to access it unless all of them agree to use their keys. Below, you’ll see this is a kind of strategy that could be used by corporates, governments and service providers, so they can agree to, for example, break into your device. I want to create an App that does this for individuals, since it’s quite a good proof of concept and would have some interesting application in the wild. Who’s with me?