The Vigenère Cipher The Vigenère Cipher, created in the 16th century, uses an element not found in a Caesar Cipher: a secret key. The creator of the code picks any word or combination of letters at random to be the key, for example, “DOG.” The keyword chosen will then be matched to the…

Caesar Box The “Caesar Box,” or “Caesar Cipher,” is one of the earliest known ciphers. Developed around 100 BC, it was used by Julius Caesar to send secret messages to his generals in the field. In the event that one of his messages got intercepted, his opponent could not read them…