Method and system for validating a device that uses a dynamic identifier
First Claim
1. A method for execution by a processing entity of a reader, the method comprising:
- receiving a first signature from a device over a communication pathway;
decrypting the first signature with a computing apparatus to obtain a candidate identifier and a candidate scrambling code;
consulting a storage entity to obtain a set of other scrambling codes associated with the candidate identifier, the other scrambling codes having been encoded in signatures received before the first signature;
validating the first signature based on a comparison of the candidate scrambling code to the set of other scrambling codes associated with the candidate identifier; and
updating the set of other scrambling codes associated with the candidate identifier to include the candidate scrambling code.
1 Assignment
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Accused Products
Abstract
A method that comprises obtaining a currently received signature from a device; obtaining a candidate identifier associated with the device; consulting a database to obtain a set of previously received signatures associated with the candidate identifier; and validating the currently received signature based on a comparison of the currently received signature to the set of previously received signatures associated with the candidate identifier. Also, a method that comprises obtaining a currently received signature from a device; decrypting the currently received signature to obtain a candidate identifier; and a candidate scrambling code; consulting a database to obtain a set of previously received scrambling codes associated with the candidate identifier; and validating the currently received signature based on a comparison of the candidate scrambling code to the set of previously received scrambling codes associated with the candidate identifier.
80 Citations
39 Claims
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1. A method for execution by a processing entity of a reader, the method comprising:
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receiving a first signature from a device over a communication pathway; decrypting the first signature with a computing apparatus to obtain a candidate identifier and a candidate scrambling code; consulting a storage entity to obtain a set of other scrambling codes associated with the candidate identifier, the other scrambling codes having been encoded in signatures received before the first signature; validating the first signature based on a comparison of the candidate scrambling code to the set of other scrambling codes associated with the candidate identifier; and updating the set of other scrambling codes associated with the candidate identifier to include the candidate scrambling code. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A computer-readable storage medium comprising computer-readable program code which, when interpreted by a computing apparatus, causes the computing apparatus to execute a method that includes:
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receiving a first signature from a device; decrypting the first signature to obtain a candidate identifier and a candidate scrambling code; consulting a database to obtain a set of other scrambling codes associated with the candidate identifier, the other scrambling codes having been encoded in signatures received before the first signature; validating the first signature based on a comparison of the candidate scrambling code to the set of other scrambling codes associated with the candidate identifier; and updating the set of other scrambling codes associated with the candidate identifier to include the candidate scrambling code.
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23. A system for processing signatures received from devices, comprising:
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an interrogation portion configured to receive a first signature from a particular device; and a processing portion configured to; decrypt the first signature in order to obtain a candidate identifier and a candidate scrambling code; consult a database in order to obtain a set of other scrambling codes associated with the candidate identifier, the other scrambling codes having been encoded in signatures received before the first signature; validate the first signature based on a comparison of the candidate scrambling code to the set of other scrambling codes associated with the candidate identifier; and update the set of other scrambling codes associated with the candidate identifier to include the candidate scrambling code. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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Specification