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Diagram explaining PVKI and PVV calculation in card PIN verification

Credit Card

What Is PVKI (PIN Verification Key Index)?

PVKI is the abbreviation for PIN Verification Key Index. It is located within the card's Track 1 and Track 2 data and is used in PVV calculation. It can take values from 1 to 6, usually defaulting to 1.

ISO 8583 field 64 message authentication code

ISO 8583

ISO 8583 Field Descriptions (F64)

F64 — Message Authentication Code (MAC): verifies the origin and text of the message between the sender and the receiver.