Question

I'm testing an EMV card reader, and I've done the steps indicated here here and here but I can't find a way to know if it's possible or not to get the Card Verification Value (CVV) code that I might need to contact the Merchant Server.

Does somebody has some links or explanation in order to get that value?

PS: I've also checked the EMV books from the EMV Specification and the words CVV/CVC are not even there!

Was it helpful?

Solution

CVV is not part of the EMV standard (page 7). This is just a number that is printed on the card; it's not usually present or readable from the chip itself.

You might be able to go digging in the "track 2 equivalent" data field and it might be there (as it would be on a mag-stripe), but I wouldn't bet on it.

OTHER TIPS

First, you need to understand the processing flow for reading EMV Card.

The real CVV is encoded during EMV data preparation with SFI tag 57 containing the track 2 data.

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