EMVcardid

EMVcardid is a term related to the EMV (Europay, Mastercard, and Visa) chip card standard, specifically referring to a unique identifier associated with a particular EMV chip card. This identifier is not the primary account number (PAN) that is embossed on the card, but rather an internal reference number generated by the EMV chip itself or the card issuer for internal tracking and security purposes.

The EMVcardid plays a role in transaction processing and security. When an EMV chip card is used in a transaction, the chip generates a dynamic cryptogram. The EMVcardid can be used in conjunction with other data elements to help authenticate the transaction and ensure that the card is genuine and has not been tampered with. It aids in differentiating between multiple EMV cards that might be linked to the same account or user.

This identifier is typically not visible to the cardholder and is used by payment networks, issuers, and processors to manage and track individual chip cards within their systems. Its exact implementation and use can vary between different payment schemes and issuers. The EMVcardid contributes to the overall security framework of EMV chip technology by providing an additional layer of data for verification during payment processing.