Device, system and method for reducing an interaction time for a contactless transaction

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 then

wirelessly 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.

2. The medium of claim 1 , further comprising instructions for:

terminating communication between the reader and the contactless payment device prior to performing an online authorization.

3. The medium of claim 2 , further comprising instructions for:

receiving a cryptogram that is based on the application transaction counter, the terminal unpredictable number, and the transaction amount; and

requesting the transaction be processed online with the cryptogram if the dynamic signature is not validated.

4. The medium of claim 1 , further comprising instructions for:

terminating communication between the reader and the contactless payment device prior to performing an offline authorization.

5. The medium of claim 1 , wherein the contactless payment device is configured to operate in chip-mode for wireless communication or magnetic stripe mode.

6. The medium of claim 1 , wherein the contactless payment device is configured to increment the application transaction counter before generating the dynamic signature.

7. The medium of claim 1 , further comprising instructions for:

wirelessly transmitting from the reader to the contactless payment device a request for a list of applications that are supported by the contactless payment device for conducting a transaction.

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:

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 then

wirelessly 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.

9. The method of claim 8 , further comprising:

terminating communication between the reader and contactless payment device prior to performing an online transaction.

10. The method of claim 9 , further comprising:

receiving a cryptogram that is based on the application transaction counter, the terminal unpredictable number, and the transaction amount; and

requesting the transaction be processed online with the cryptogram if the dynamic signature is not validated.

11. The method of claim 8 , further comprising:

terminating communication between the reader and the contactless payment device prior to performing an offline authorization.

12. The method of claim 8 , further comprising:

authorizing the contactless transaction if the dynamic signature received from the contactless payment device is equal to the recalculated dynamic signature.

13. The method of claim 8 , further comprising:

receiving a request for a second contactless transaction;

re-establishing communication between the reader and the contactless payment device; and

completing the second contactless transaction with less than one-half second of interaction time between the reader and the contactless payment device.

14. The method of claim 13 , wherein completing the second contactless transaction changes the application transaction counter.

15. The method of claim 13 , wherein the second contactless transaction is for a non-financial transaction.

16. A system comprising:

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 then

wirelessly 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 then

sending 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.

17. The system of claim 16 , further comprising instructions in the reader for:

receiving from the contactless payment device a cryptogram that is based on the application transaction counter, the terminal unpredictable number, and the transaction amount; and

requesting the transaction be processed online with the cryptogram if the dynamic signature is not validated.

18. The system of claim 16 , wherein the contactless payment device is configured to operate in chip-mode for wireless communication or magnetic stripe mode.

19. The system of claim 16 , further comprising:

a network coupled to the reader.

20. The system of claim 19 , wherein the network is further coupled to an issuer.