Dear Eryk Kunkowski,
Hope you are doing great, most of the information about DESFire is under NDA we have some documents that have what you need but you need to sign an NDA (Non Disclosure Agreement) in order to get access to them, my recommendation would be that you que in contact with your closest certified distributor in order so sign an NDA and get this information. my apologies for the inconveniences this means to you.
If you have more questions please let me know.
BR
Jonathan
