Electronic identification system and method with source authenticity
First Claim
1. An electronic identification system including:
- at least one transponder encoder for writing data to a transponder;
said encoder comprising means for providing an identification code characteristic of an entity externally of external to the transponder;
a plurality of transponders each adapted to receive data from the at least one encoder and to store the data received in a respective memory arrangement of the transponder;
at least one verifier for interrogating a selected transponder and to read reading data stored in the memory arrangement of the selected transponder via a radio frequency link;
wherein said encoder further comprises an encryption device for utilizing an algorithm and input data characteristic of the encoder to generate encrypted data to form at least part of the data written to the selected transponder;
the at least one verifier comprises comprising computing means for extracting and deciphering the encrypted data from the data read thereby;
and a comparator for comparing the deciphered data to authorized data andan indicator for providing an indication of an outcome of the comparison.
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Accused Products
Abstract
An RF electronic identification system (10) is disclosed and claimed. The system includes at least one transponder encoder (14.1) for writing data into a memory arrangement (52) of a selected transponder (1.1) of a plurality of transponders (1.1 to 1.n) adapted to receive data from the at least one encoder. The system further includes at least one verifier (16) for interrogating a selected transponder (1.1) and to read data stored in the transponder. The encoder includes a controller (42) for providing an identification code characteristic of the encoder to form part of the data to be written into the transponder. The verifier includes computing means (56) for extracting the identification code from the data read thereby and for comparing the code to authorized codes. An indicator (18) provides an indication whether the identification code corresponds to any of the authorized codes or not. A method of verifying the authenticity of a transponder is also disclosed and claimed.
238 Citations
34 Claims
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1. An electronic identification system including:
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at least one transponder encoder for writing data to a transponder; said encoder comprising means for providing an identification code characteristic of an entity externally of external to the transponder; a plurality of transponders each adapted to receive data from the at least one encoder and to store the data received in a respective memory arrangement of the transponder; at least one verifier for interrogating a selected transponder and to read reading data stored in the memory arrangement of the selected transponder via a radio frequency link; wherein said encoder further comprises an encryption device for utilizing an algorithm and input data characteristic of the encoder to generate encrypted data to form at least part of the data written to the selected transponder; the at least one verifier comprises comprising computing means for extracting and deciphering the encrypted data from the data read thereby;
anda comparator for comparing the deciphered data to authorized data and an indicator for providing an indication of an outcome of the comparison. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method of verifying the authenticity of a transponder, the method including the steps of:
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generating encrypted data utilizing an algorithm and input data characteristic of a transponder encoder; writing the encrypted data and data relating to an identification code of an entity externally of external to the transponder into the transponder utilizing the transponder encoder; reading the data written into the transponder with a verifier via a radio frequency link extending between the verifier and the transponder; extracting from the data read, the encrypted data;
decipher, deciphering the encrypted data to generate deciphered data using computing means of the verifier;
andcomparing the deciphered data to authorized data and providing an indication based on the comparison. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A method of verifying the authenticity of a transponder comprising:
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receiving, at a computing means, encrypted data and input data relating to a physical characteristic of the transponder; applying an algorithm to the encrypted data and the input data, using the computing means, to generate an output number; and comparing, using the computing means, the output number to a list of numbers. - View Dependent Claims (30, 31, 32, 33)
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34. A reader configured to authenticate a transponder, the reader comprising:
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an RF transceiver; and computing means configured to; receive encrypted data and input data relating to a physical characteristic of the transponder via the RF transceiver; apply an algorithm to the encrypted data and the input data to generate an output number; and compare the output number to a list of numbers.
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Specification