What are ephemeral keys?

Ephemeral keys are temporary passwords that help keep secrets safe when you're playing with your friends.

Imagine you and your best friend want to start a secret club. Every time you meet, you pick a new password so only the two of you can join the club. This password is like an ephemeral key, it's used just for that meeting, and then you throw it away or forget about it.

If you always used the same password, eventually someone else might guess it. But if you use a new one every day, it’s much harder for others to figure out your secret. Ephemeral keys work this way, they're short-lived and change often.

Think of them like the special handshake you do with your friend before going into the treehouse. It's quick, easy, and only works if both of you know it. When you leave the treehouse, you don’t need that handshake anymore, you just use a new one next time.

So ephemeral keys are like those handshakes: they help you stay safe without needing to remember too many secrets at once!