Explaining one of the simplest and historically well-known ciphers, the Caesar cipher, Holden establishes the key mathematical idea behind the cipher and discusses how to introduce flexibility and ...

J K Rowling’s The Hallmarked Man features the Pigpen Cipher, a centuries-old code once used by Freemasons and revolutionaries ...

If you have to write down a password, or some other sensitive information, you can use a Caesar Cipher to quickly encode and decode that message on your own.

The CS2300-R takes the Caesar Cipher and modifies it so that the cipher key changes as you move down the data string. [Cybergibbons] was able to figure out how the key changed, which revealed, as ...

Object Details Author Churchhouse, R. F Contents 1. Introduction -- 2. From Julius Caesar to simple substitution -- 3. Polyalphabetic systems -- 4. Jigsaw ciphers -- 5. Two-letter ciphers -- 6. Codes ...