In 1854, Sir Charles Wheatstone invented the cipher known as "Playfair," named ... Follow the keyword with the rest of the alphabet's letters in alphabetical order. M A N C H E S T R B D F G ...

Z340's cipher alphabet consists of 63 different symbols – enough that several could represent the same English letter. That complexity, along with misspellings and transpositions in the actual ...

A cipher is a code used to protect information ... Once you have your circles, you need to write the alphabet around the outside of both of them. You can check out our templates for inspiration.