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 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 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 transponder;
the at least one verifier comprises computing means for extracting and deciphering the encrypted data from the data read thereby;
a comparator for comparing the deciphered data to authorized data andan indicator for providing an indication of an outcome of the comparison.
7 Assignments
0 Petitions
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.
34 Citations
28 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 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 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 transponder; the at least one verifier comprises computing means for extracting and deciphering the encrypted data from the data read thereby; a 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 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 the encrypted data; comparing 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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Specification