CPC G06K 19/073 (2013.01) [G06K 19/071 (2013.01); G06K 19/0723 (2013.01)] | 20 Claims |
1. A payment terminal, comprising:
a processor, a memory, and a transceiver,
wherein the processor:
receives, in response to transmission of a first signal to a card processor, a set of data from a card memory of a smart card, wherein the set of data includes a count number,
receives a digital signature from a host computer, and
transmits a second signal including instructions to enable the card processor to update the set of data on the card memory, wherein the updating includes incrementing the count number by one unit, and
wherein the transceiver:
transmits to the smart card the first signal and the second signal, and
receives from the smart card a third signal including all the sets of data stored on the card memory.
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