TAMPER DETECTION FOR LOW COST RFID TAGS: USING WATERMARKING WITH CHAOTIC MAPPING

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Author(s) Kevin Curran  |  Tom Lunney   |   Ali N M Noman   |
Pages 27-32
Volume 1
Issue 1
Date October, 2011
Keywords watermarking; RFID security; tamper detection; EPC Class1 Gen 2 tag; information hiding.
Abstract

Low cost RFID tags pose unique security and privacy challenges. There is an unresolved issue however of data tampering. Here we propose a watermarking based tamper detection solution for low cost RFID tags where the Object Class (OC) and the Serial number (SN) field of an RFID tag are used as the cover medium. Additionally, the use of a chaotic map (i.e. Skew Tent Map) in the watermark embedding algorithm makes this solution more secure. Unlike existing watermark based solutions, our proposed solution offers increased security and can detect tampering anywhere in the RFID tag (e.g. both in the EPC Manager and the Object Class field of an RFID tag), not just a portion such as the Object Class or the EPC manager. This proposed solution conforms to the EPC-Class1 Generation2 specification.  

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