Device, system and method for reducing an interaction time for a contactless transaction
First Claim
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1. A non-transitory computer readable medium embodying information indicative of instructions for causing a reader to perform operations comprising:
- wirelessly sending from a reader to a contactless payment device in a command message a terminal unpredictable number and a transaction amount;
receiving from the contactless payment device in response to the command message a wireless message with a dynamic signature generated based on an application transaction counter (ATC), the terminal unpredictable number, the transaction amount, and a card unpredictable number, the dynamic signature sent with an application file locator (AFL); and
thenwirelessly transmitting from the reader to the contactless payment device a read record command message to request one or more records indicated in the AFL from the contactless payment device;
receiving from the contactless payment device the requested one or more records requested by the read record command message; and
causing a recalculation of the dynamic signature in order to authorize a contactless transaction if the dynamic signature received from the contactless payment device matches the recalculated dynamic signature.
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Abstract
A method comprising, at a reader, performing at least one transaction-based risk management process prior to energizing a contactless interface, initiating communication with a card utilized for a contactless transaction, receiving information associated with the card, terminating communication with the card, and authorizing the contactless transaction.
46 Citations
20 Claims
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1. A non-transitory computer readable medium embodying information indicative of instructions for causing a reader to perform operations comprising:
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wirelessly sending from a reader to a contactless payment device in a command message a terminal unpredictable number and a transaction amount; receiving from the contactless payment device in response to the command message a wireless message with a dynamic signature generated based on an application transaction counter (ATC), the terminal unpredictable number, the transaction amount, and a card unpredictable number, the dynamic signature sent with an application file locator (AFL); and
thenwirelessly transmitting from the reader to the contactless payment device a read record command message to request one or more records indicated in the AFL from the contactless payment device; receiving from the contactless payment device the requested one or more records requested by the read record command message; and causing a recalculation of the dynamic signature in order to authorize a contactless transaction if the dynamic signature received from the contactless payment device matches the recalculated dynamic signature. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for minimizing an interaction time under 500 milliseconds for a contactless transaction between a reader and a contactless payment device, the method comprising:
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wirelessly sending from a reader to a contactless payment device in a command message a terminal unpredictable number and a transaction amount; receiving from the contactless payment device in response to the command message a wireless message with a dynamic signature generated based on an application transaction counter (ATC), the terminal unpredictable number, the transaction amount, and a card unpredictable number, the dynamic signature sent with an application file locator (AFL); and
thenwirelessly transmitting from the reader to the contactless payment device a read record command message to request one or more records indicated in the AFL from the contactless payment device; receiving from the contactless payment device the requested one or more records requested by the read record command message; and causing a recalculation of the dynamic signature in order to authorize a contactless transaction if the dynamic signature received from the contactless payment device matches the recalculated dynamic signature. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A system comprising:
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a reader comprising a non-transitory computer readable medium embodying information indicative of instructions for causing the reader to perform operations comprising; wirelessly sending from the reader to a contactless payment device in a command message a terminal unpredictable number and a transaction amount; receiving from the contactless payment device in response to the command message a wireless message with a dynamic signature generated based on an application transaction counter (ATC), the terminal unpredictable number, the transaction amount, and a card unpredictable number, the dynamic signature sent with an application file locator (AFL); and
thenwirelessly transmitting from the reader to the contactless payment device a read record command message to request one or more records indicated in the AFL from the contactless payment device; receiving from the contactless payment device the requested one or more records requested by the read record command message; and causing a recalculation of the dynamic signature in order to authorize a contactless transaction if the dynamic signature received from the contactless payment device matches the recalculated dynamic signature; and the contactless payment device comprising a non-transitory computer readable medium embodying information indicative of instructions for causing the contactless payment device to perform operations comprising; sending from the contactless payment device to the reader the wireless message with the dynamic signature; and
thensending from the contactless payment device to the reader the requested one or more records requested by the read record command message, wherein the reader is configured to minimize an interaction time under 500 milliseconds for a contactless transaction between the reader and the contactless payment device. - View Dependent Claims (17, 18, 19, 20)
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Specification