In general, if you want people to be able to use cryptographic signatures to prove their identity, they are going to have to know what those things are and how

In general, if you want people to be able to use cryptographic signatures to prove their identity, they are going to have to know what those things are and how they work. Since this is an entirely new thing in the world there is no existing culture to map it to. The problem is not specific to any particular technology. This would be an excellent topic for new curriculum for the schools. Some ideas need to be generally known to be beneficial.