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.
As part of daily operations, small businesses may need to collect or exchange sensitive data that should be protected. It could be a financial transaction, a mailing address or some other personally ...
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 ...
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