Introduction to ciphers and substitution. Alice and Bob and Carl and Julius: terminology and Caesar Cipher ; The key to the matter: generalizing the Caesar Cipher ; Multiplicative ciphers ; Affine ...

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 ...

The RansomHouse ransomware-as-a-service (RaaS) has recently upgraded its encryptor, switching from a relatively simple single ...

Microsoft is killing off an obsolete and vulnerable encryption cipher that Windows has supported by default for 26 years ...

Quantum computing represents a major threat to encryption, and the inflection point may be less than five years away.

Damascus, Dec. 12 (SANA) The governor of the Central Bank of Syria, Abdul Qader Husariya , said the U.S. repeal of the “Caesar Act” constitutes a pivotal moment that is expected to positively ...

The Miami Heat playing in Orlando feels like a weekly thing at this point in the season. Following a season opener loss and close battle just four days ago, the Heat head right back up there for an in ...

Deep in a quiet forest in China lies an old military aircraft, abandoned and mysterious. Possibly dating back to World War II, this plane raises questions about its history and purpose. Once a symbol ...

A credit card authorization key is a secure code used to process transactions, confirming purchases and preventing fraud ...

This recipe appears in a collection. See all stories. As the weather warms up and the festive season rolls around, I naturally start craving lighter, fresher meals, and for me that means salads. I ...

Switch 2 cartridges top out at 64GB, but they're expensive for the publisher to use, so game-key cards will help get games into physical stores for a lot less money, Nintendo tells The Verge. Many ...