according to the wiki, discretionary data is
may include a PIN verification key indicator (PVKI, 1 character), PIN verification value (PVV, 4 characters), card confirmation value or a card confirmation code (CVV or CVC, 3 characters)
This means that it does not guarantee that I can always get CVC, which is a problem for me. I was able to use an existing implementation to analyze my credit card strip and got a bunch of numbers for discrepdata. I don’t know exactly how to interpret it. With its more than 8 characters and does not match my cvc, or pin number.
It looks like (the numbers are random, but the padded 0 are the same): 0000031200100
What does it mean?
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