PERSONAL DIGITAL KEY DIFFERENTIATION FOR SECURE TRANSACTIONS
First Claim
1. A method for differentiating between a first personal digital key (PDK) and a second PDK within a proximity zone of an external device, comprising:
- obtaining a first differentiation metric associated with the first PDK after it enters the proximity zone;
obtaining a second differentiation metric associated with the second PDK after it enters the proximity zone;
determining whether the first PDK is most likely to be associated with a transaction based on the first and second differentiation metrics;
responsive to the first PDK being most likely associated with the transaction, executing an authentication test for the first PDK; and
authorizing the transaction responsive to the first PDK satisfying the authentication test.
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Accused Products
Abstract
A system and method provide efficient, secure, and highly reliable authentication for transaction processing and/or access control applications. A Personal Digital Key is a portable device carried by an individual that stores one or more profiles (e.g., a biometric profile) in a tamper-proof memory. When multiple PDKs are present at the point of the transaction, the system automatically determines which PDK to associate with the authentication and transaction processes. The differentiation decision is based on one or more differentiation metrics including distance information, location information, and detection duration information associated with each of the PDKs within range. Profile samples comprising subsets of the profile information are received to provide a quick correlation between a PDK an input sample (e.g., a subset of a biometric input). After determining which PDK should be associated with the transaction, a full authentication process is executed.
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Citations
31 Claims
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1. A method for differentiating between a first personal digital key (PDK) and a second PDK within a proximity zone of an external device, comprising:
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obtaining a first differentiation metric associated with the first PDK after it enters the proximity zone;
obtaining a second differentiation metric associated with the second PDK after it enters the proximity zone;
determining whether the first PDK is most likely to be associated with a transaction based on the first and second differentiation metrics;
responsive to the first PDK being most likely associated with the transaction, executing an authentication test for the first PDK; and
authorizing the transaction responsive to the first PDK satisfying the authentication test. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An apparatus for differentiating between a first personal digital key (PDK) and a second PDK within a proximity zone, comprising:
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a receiver/decoder circuit adapted to obtain a first differentiation metric associated with the first PDK when the first PDK enters the proximity zone and obtain a second differentiation metric associated with the second PDK when the second PDK enters the proximity zone; and
a processor coupled to the receiver decoder circuit, the processor for determining whether the first PDK is most likely to be associated with a transaction based on the differentiation metrics, executing an authentication test for the first PDK responsive to determining that the first PDK is most likely associated with the transaction, and authorizing the transaction responsive to the first PDK satisfying the authentication test. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A computer readable storage medium for differentiating between a plurality of personal digital keys (PDKs) within a proximity zone of an external device, structured to store instructions executable by a processing system, the instructions when executed cause the processing system to:
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obtain a first differentiation metric associated with the first PDK after it enters the proximity zone;
obtain a second differentiation metric associated with the second PDK after it enters the proximity zone;
determine whether the first PDK is most likely to be associated with a transaction based on the first and second differentiation metrics;
responsive to the first PDK being most likely associated with the transaction, execute an authentication test for the first PDK; and
authorize the transaction responsive to the first PDK satisfying the authentication test. - View Dependent Claims (27, 28, 29, 30, 31)
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Specification