Can you keep a secret that changes every time you whisper it?
Enigma machine
Can you keep a secret that changes every time you whisper it?
Imagine you have a secret code that scrambles your message every time you send it, making it nearly impossible for anyone else to read without knowing the secret.
Think of a secret code like a Rubik's Cube that scrambles your message every time you send it. To unscramble it, you need to know the secret settings that change with every message.
Example
If you send a message with a secret code that scrambles it every time, and you change the secret settings each time, only someone with the correct settings can unscramble and read your message.
Remember this
The key insight is that knowing the secret settings (like the position of the Rubik's Cube) allows you to unscramble the message and read it.
Text adapted from Wikipedia, licensed under CC BY-SA 4.0.
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