Something, perhaps, like a Vigenere Cipher.
(My comment to my mother: "Dude, I'm tellin' ya: The French came up with the sneakiest codes!")
And that's when I discovered this awesome website with a plethora of ciphers and codes--and handy tools that help you encode and decode a message like *that*!
This simple website offers tools for numerous ciphers and codes, from easy transposition or substitution ciphers, to more advanced ciphers like:
- The Vigenere Cipher
- The digraph Cipher
- The homophonic Cipher
Included in the general instructions and explanations are tools that convert your plaintext to encoded text, and that decode text that has already been encoded.
VVRILRXALMXAHUWBXVXKCFMNXGCQOQZKCDEUDLHVBVGUDQD