Crypto · Card verification
CVV / CVC Calculator
Generate or verify card verification values for magnetic stripe (CVV1 / CVC1), card-not-present (CVV2 / CVC2), and chip (iCVV / iCVC). CVV is the Visa term; CVC is the Mastercard equivalent. All types use a double-length TDES Card Verification Key (CVK).
Operation
Type
Card expiration year and month
Track service code (ISO/IEC 7813)
Double-length TDES Card Verification Key — CVK1 (8 bytes) || CVK2 (8 bytes)