The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 09, 2013
Filed:
Jun. 08, 2012
Frederic Bauchot, Saint-Jeannet, FR;
Jean-yves Clement, Saint-Jeannet, FR;
Gerard Marmigere, Drap, FR;
Pierre Secondo, Tourrettes-sur-Loup, FR;
Frederic Bauchot, Saint-Jeannet, FR;
Jean-Yves Clement, Saint-Jeannet, FR;
Gerard Marmigere, Drap, FR;
Pierre Secondo, Tourrettes-sur-Loup, FR;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method and system for identifying an authentication status of a first item. An RFID reader transmits zero and a random number to a first RFID tag associated with the first item. The first RFID tag uses a hashing function to compute a hash (H) of a concatenation of an identifier (Id) of the first RFID tag, the random number, and a first secret key and sends the hash Hto the RFID reader which then transmits the identifier Idand the random number to a second RFID tag. The second RFID tag uses the hashing function to compute a hash (H) of a concatenation of the identifier Id, the random number, and a second secret key and sends the hash Hto the RFID reader. The authentication status of authentic or counterfeit is determined for the first item based on whether or not His equal to H