History of Cryptography | The Vigenère Cipher

History of Cryptography | The Vigenère Cipher

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...