DYNAMIC PRIMARY ACCOUNT NUMBER (PAN) AND UNIQUE KEY PER CARD
First Claim
1. A method of processing a financial transaction related to a financial account having a real Primary Account Number (PAN), the method comprising:
- detecting initiation of the transaction with a device used as a presentation instrument in the transaction;
generating a Dynamic Transaction Cryptogram (DTC) that is valid for a single transaction;
generating a dynamic PAN at the device, the dynamic PAN comprising an encrypted form of the real PAN that is valid for the single transaction; and
providing the DTC and the dynamic PAN from the device for use in the transaction.
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Accused Products
Abstract
Methods, systems, and machine-readable media are disclosed for handling information related to a financial transaction including utilizing dynamic cryptograms. According to one embodiment, a method of processing a financial transaction related to a financial account can comprise detecting initiation of the transaction with a device used as a presentation instrument in the transaction. A Dynamic Transaction Cryptogram (DTC) and a dynamic PAN can be generated at the device. The DTC can be used to authenticate the transaction and the dynamic PAN can comprise an encrypted form of a real PAN of the financial account that is valid for a single transaction. The DTC and the dynamic PAN can be provided by the device for use in the transaction.
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Citations
38 Claims
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1. A method of processing a financial transaction related to a financial account having a real Primary Account Number (PAN), the method comprising:
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detecting initiation of the transaction with a device used as a presentation instrument in the transaction; generating a Dynamic Transaction Cryptogram (DTC) that is valid for a single transaction; generating a dynamic PAN at the device, the dynamic PAN comprising an encrypted form of the real PAN that is valid for the single transaction; and providing the DTC and the dynamic PAN from the device for use in the transaction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A device for initiating a financial transaction related to a financial account, the device comprising:
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a processor; an output device communicatively coupled with the processor; and a memory communicatively coupled with and readable by the processor, the memory having stored therein a real Primary Account Number (PAN) for the financial account, a unique, card-level key, and an Institution Key Card Variant (IKCV) that is a variant of an institution key of an issuer of the financial account and wherein the memory further has stored therein a series of instructions which, when executed by the processor, cause the processor to detect initiation of the transaction, generate a Dynamic Transaction Cryptogram (DTC) using the unique card-level key and a dynamic PAN based on the real PAN, the IKCV, and an undeterminable number and provide the DTC and the dynamic PAN to the output device. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
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25. A system comprising:
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device for initiating a financial transaction related to a financial account, the device having stored therein a real Primary Account Number (PAN) for the financial account, a unique, card-level key, and an Institution Key Card Variant (IKCV) that is a variant of an institution key of an issuer of the financial account and wherein the device is further adapted to detect initiation of the transaction, generate a Dynamic Transaction Cryptogram (DTC) using the unique card-level key and a dynamic PAN based on the real PAN, the IKCV, and an undeterminable number and output the DTC and the dynamic PAN; and a payment processor system communicatively coupled with the device and adapted to receive the DTC and the dynamic PAN from the device and process the transaction based on the DTC and the dynamic PAN. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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Specification