The VISA CVV generate callable service calculates a 1- to 5-byte value through the DES-encryption of the PAN, the card expiration date, and the service code using two data-encrypting keys or two MAC keys 6 is a new software for get track2 of Credit or Debit card and result PIN. Generate Credit Card Numbers with Complete Details. Generate track 2 from cvv CVV = Fun (CVK1, CVK2, card_no, service_code, expiry_YYMM) There are three CVV's.
