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The powerful of RFID techniques that uses RF to identify the unique information of the object is one of the highlight in today's ubiquitous ear. It has been widely use to manage object in many industries. However, since the information of RFID may easily unveiled in the air, the security and the privacy issues always exist. In this paper, we propose a new mutual authentication protocol in RFID system. This protocol use tag ID which is encrypted with hash function and a stream cipher based OTP by challenge-response pair of PUF (Physically Unclonable Function), thus there is no key disclosure problem in our protocol. NLM-128 stream cipher is used to generate the OTP value; it provides low-resource hardware implementation, which is proper for ubiquitous computing device such as a sensor in USN or a RFID tag. It takes a 128-bit key and a 128-bit initialization vector, has 258-bits of internal stage, and achieves a security level of 2128.
Date of Conference: 26-28 Sept. 2011