It’s a public & private key pair, same as Bitcoin and PGP lol. It’s not super complex to understand how it works.
Discussion
But this is what trips everyone up even with bitcoin.
Fair, I guess for some it’s not complex but for others it is. I find the easiest way to boil down the idea is explaining it by using generalized statements, like “it uses complex math to solve a puzzle that spits out a specific pattern”, or something like that when trying to explain to someone how the key pair system works.