The message is called the plaintext because it is the unchanged source information. Example: The cat ran away. The secret message generated is called a cipher or ciphertext and it is the encrypted ...

The concluding words of Unsolved! are a call to action. Craig Bauer, a US mathematician and editor-in-chief of the journal Cryptologia, ends his hefty history of cryptography by noting that even as he ...

Researchers have used state-of-the-art machine translation software — and some old-fashioned hunches — to crack the code used by a secret society in Germany three centuries ago. The results shed light ...

A puzzle game for Windows 3.1 where players must solve substitution ciphers of well-known quotes. Rescuing nuns, cracking safes, and exploring the Vatican. It's all in a day's work for Junior—sorry, ...