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

JordyMicheal
11 - Bolide

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

 

workflow.PNG

 

 

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