You could do worse than to confuse the meanings of "code" and "cipher"—even cryptographers sometime use the terms as though they had the same meaning. There is, however, a definite distinction between ...

Deep learning project and theory videos every week! Trump Makes Announcement Against Taliban NFL World Was in Disbelief After Adonai Mitchell's Mistake Erased a Colts Touchdown 'They just don't come': ...

When Ricky McCormick’s body was discovered in a Missouri cornfield in 1999, police officers discovered something unusual in his pockets: Two curious notes that appeared to be written in code. If ...

In general, you want to avoid writing down sensitive information and just keeping it in your head but that's not always an option. If you have to write down a password, or some other sensitive ...

The 35-year-old saga of Kryptos, an enigmatic sculpture containing four encrypted messages outside the CIA headquarters, just took a bizarre twist. Though cryptographers broke the first three passages ...

1. Introduction -- 2. From Julius Caesar to simple substitution -- 3. Polyalphabetic systems -- 4. Jigsaw ciphers -- 5. Two-letter ciphers -- 6. Codes -- 7. Ciphers for spies -- 8. Producing random ...