How to Make a Caesar WheelThe Caesar Cipher is one of the earliest known and simplest Ciphers. It is a substitution Cipher which means that each letter in the plaintext (original message) is ‘shifted’ a certain number of places down the alphabet. So for example with a shift of one, A would become B, B would become C and so on. It is also known as a shift Cipher. It isn’t difficult to break like Enigma messages, so this is a great introduction to cryptography for new Codebreakers!
This comes from the Bletchley Park web site. Bletchley Park is where the British and especially Alan Turing, worked to developed a way to break the codes of the Nazi's Enigma machine during World War II.
