Contact-less tag with signature, and applications thereof
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United States of America Patent
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Oct 5, 2010
Issued Date -
N/A
app pub date -
Dec 11, 2008
filing date -
Dec 20, 2007
priority date (Note) -
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Abstract
A method, comprising: obtaining a signature from a contactlessly readable tag; decrypting the signature with a key to obtain (i) a candidate identifier and (ii) a scrambling code associated with the signature; and validating the candidate identifier based on at least one of the scrambling code and the signature. Also, a system, comprising: at least one tag reader configured to receive a plurality of signatures released by a respective plurality of tags, including a particular signature released by a particular one of the tags, and to cause decryption of the particular signature with a key to obtain (i) a candidate identifier, and (ii) a scrambling code associated with the signature; and a processing entity configured to effect validation of the candidate identifier based on at least one of the scrambling code and the signature.
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