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The counterintuitive solution, known as public key cryptography, relies not on keeping a key secret, but rather on making it widely available. The trick is to also use a second key that you never ...

Neal Koblitz is a mathematician who, starting in the 1980s, became fascinated by mathematical questions in cryptography. In his article "The Uneasy Relationship Between Mathematics and Cryptography," ...

The information security situation is constantly changing due to the rise of quantum computing technologies, which can swiftly decrypt modern encryption techniques. However, a promising US government ...

A quick hands-on guide to AES, RSA, and post-quantum encryption. Learn how they work, how to use them safely, and what to do ...

The original version of this story appeared in Quanta Magazine. Hard problems are usually not a welcome sight. But cryptographers love them. That’s because certain hard math problems underpin the ...

It all begins with mathematics really - the one true scientific language, so they say. Cryptography has been around as early as 4000 years ago, doing what it still does today - ensuring that secrets ...

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.

Cryptography is just about as old as written communication itself, and mathematics has long supplied methods for the cryptographic toolbox. Starting in the 1970s, increasingly sophisticated ...