The Vigenere cipher is a great example of a more advanced type of substitution cipher. It takes the idea of the Caesar Cipher and makes it a lot more difficult to decrypt by combining multiple Caesar Cipher substitutions and shifts into a single encrypted text.
There are 2 ways to encrypt and decrypt a Vigenere Cipher:
Method 1 is by using a grid
Method 2 is by using a Caesar cipher wheel
Below we have some resources to help tell you more about the cipher and also some encryption and decryption exercise using the Vigenere cipher with our online Caesar Cipher Wheel
Vigenere Cipher exercises
Try encrypting some computer science keywords using the Vignere Cipher and a Key Phrase
Try encrypting some computer science keywords using the Vignere Cipher and a Key Phrase
More
An explanation of how the Vigenere cipher works and a little of its history.
Want to try and work with a grid instead? Use this to print off a grid to work with.
