For thousands of years, if you wanted to send a secret message, there was basically one way to do it. You’d scramble the message using a special rule, known only to you and your intended audience.

The original version of this story appeared in Quanta Magazine. For thousands of years, if you wanted to send a secret message, there was basically one way to do it. You’d scramble the message using a ...

(TNS) — When we check email, log in to our bank accounts, or exchange messages on Signal, our passwords and credentials are protected through encryption, a locking scheme that uses secrets to disguise ...