System and method for using a smart card
First Claim
Patent Images
1. A smart card comprising:
- an interface with a smart card reader;
first circuitry configured to receive a first enable signal from a portable smart card enabler device, wherein the first enable signal is transmitted to the first circuitry without passing through the smart card reader;
second circuitry coupled with the interface and the first circuitry and configured to allow the smart card to function with the smart card reader upon receiving the first enable signal from the portable smart card enabler device by the first circuitry, and to disable the smart card to function with the smart card reader if the first circuitry does not receive the first enable signal from the portable smart card enabler device; and
wherein the first circuitry is also configured to receive a second enable signal from the portable smart card enabler device, and wherein the second circuitry is also configured to allow the smart card to perform a transaction with the smart card reader upon receiving the second enable signal from the portable smart card enabler device by the first circuitry, and to disable the smart card to perform the transaction with the smart card reader if the first circuitry does not receive the second enable signal from the portable smart card enabler device.
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Abstract
A system and method for using a smart card. The system includes a smart card enabler receiving a first identification key from a smart card. The smart card enabler compares the first identification key with a second identification key. If the first identification key matches the second identification key, the smart card enabler enables the smart card to function with a smart card reader. Also, if information stored in a smart card is incapable of being retrieved from the smart card, the transaction information stored in the smart is recovered by using information stored in a smart card enabler.
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Citations
26 Claims
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1. A smart card comprising:
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an interface with a smart card reader;
first circuitry configured to receive a first enable signal from a portable smart card enabler device, wherein the first enable signal is transmitted to the first circuitry without passing through the smart card reader;
second circuitry coupled with the interface and the first circuitry and configured to allow the smart card to function with the smart card reader upon receiving the first enable signal from the portable smart card enabler device by the first circuitry, and to disable the smart card to function with the smart card reader if the first circuitry does not receive the first enable signal from the portable smart card enabler device; and
wherein the first circuitry is also configured to receive a second enable signal from the portable smart card enabler device, and wherein the second circuitry is also configured to allow the smart card to perform a transaction with the smart card reader upon receiving the second enable signal from the portable smart card enabler device by the first circuitry, and to disable the smart card to perform the transaction with the smart card reader if the first circuitry does not receive the second enable signal from the portable smart card enabler device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A smart card, comprising:
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a) a first interface through which communications with a portable smart card enabler device are transported;
b) a second interface through which communications with a smart card reader are transported;
c) memory to store an identification key, a transaction key and a transaction value; and
d) a processor to;
1) send said identification key to said portable smart card enabler device through said first interface;
2) send said transaction key to said portable smart card enabler device through said first interface as a consequence of said smart card receiving a first enable signal from said portable smart card enabler device without passing through the smart card reader, said first enable signal sent in response to said sending of said identification key;
3) send said transaction value to said smart card reader through said second interface in order to entertain a transaction, said transaction value being sent as a consequence of said smart card receiving a second enable signal from said portable smart card enabler device, said second enable signal sent in response to said sending of said transaction key. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method, comprising:
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a) sending an identification key from a smart card to a portable smart card enabler device through a first smart card interface;
b) sending a transaction key from said smart card to said portable smart card enabler device through said first interface as a consequence of said smart card receiving a first enable signal from said portable smart card enabler device, said first enable signal sent in response to said sending of said identification key; and
,c) sending a transaction value from said smart card to a smart card reader through a second smart card interface in order to entertain a transaction, said transaction value being sent as a consequence of said smart card receiving a second enable signal from said portable smart card enabler device, said second enable signal sent in response to said sending of said transaction key without passing through the smart card reader. - View Dependent Claims (21, 22, 23, 24, 25, 26)
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Specification