Method for processing transaction using dynamic pan

Abstract

The present invention relates to a method for processing a transaction using a dynamic primary account number (PAN), which can minimize changes of existing infrastructures such as a card reader, a VAN server, and a card company server; reduce burdens relating to such changes; and can improve the security of a transaction of payment devices such as a magnetic strip card, an IC card, and a portable terminal. To this end, the method for processing a transaction using a dynamic PAN, according to the present invention, is performed by a payment device which provides track 2 information of an international standardization organization (ISO) standard to a card reader and comprises the steps of: partitioning a PAN area of track 2 information into a first area which includes a bank information number (BIN) and a second area which does not include the BIN; forming a dynamic area by encoding the second area; forming one dynamic PAN area by combining the first area and the dynamic area; and providing track 2 information which includes the dynamic PAN area to the card reader.

Dependencies are inferred from the claim text.