It's not an unsolvable problem with good apps/software though. A key as a sequence of characters is confusing, but depicting an actual key cut in half, that nee

It's not an unsolvable problem with good apps/software though. A key as a sequence of characters is confusing, but depicting an actual key cut in half, that needs to be combined with another, would make sense to people. As was said elsewhere, a lot of this will come as the space matures.