Format-Preserving Encoding using Feistel-based encryption (FFX)

[JordyMicheal]

Hey All,

In case someone is looking to do some format preserving encoding, I packed up some python code for you!

Just had an ask and couldn't find the most on it so I thought I would share.

This will read in and match a set length with an alphabet, and can be encoded using a password.

Open up the macro to make any changes that suit your needs.

There is a second column and loop built into the code so you can select which columns to you want to encode by Y or N