The Caesar cipher is one of the simplest and best known encryption techniques. It is a monoalphabetic monogametic substitution cipher. The central idea is to make each letter of the original alphabet ...

The regular way to run the program is to use "encrypt" first, which will save the encrypted output to a global variable. Then if you use "decrypt", it will reference that variable and decrypt it back ...

To decrypt the message, the process is reversed. Caesar ciphers are often shown using a Caesar cipher wheel diagram, to illustrate that when the end of the alphabet is reached it goes around again.

Introduction If you need to send a secret message to a friend, how could you prevent other people from reading it? One way is to encrypt the message—that is, use a secret code that only you and your ...