Does anyone have a good detailed article on the crypto behind iCVV/dynamic CVV? This article summarizes how it works, but I haven't found a good detailed article after much googling
"Codes written on the track with equivalent data stored on the chip to prevent fraud. All chip cards are issued with the card security code on the track data stored on the magnetic stripe and chip card security code stored on the chip. Calculated with the same DES key but with a ‘999’ service code"
https://www.firstdata.com/downloads/marketing-merchant/EMV-A...