Radio frequency identification is in the limelight for a few years and become pervasive in our daily lives. Security and access control are the most likely applications to use RFID. The biggest challenge for current RFID technology is to provide the necessary benefits while avoiding any threats to the privacy of its users. RFID is an emerging technology. It is the next generation of bar codes with added functionality and it is rapidly finding more diversified applications in today's marketplace. RFID system consists of 3 parts: the RF tags, the RF readers, and the back end database server. The proposed system focuses on the problem of anti-counterfeiting measures that can be provided by RFID tags and investigate which PKC based identification protocols are used for these applications and also to make more secure authentication by enhancing the OKAMOTO protocol through GPS on RFID tags. Hence it provides stronger authentication and it uses the coupons and hash values to avoid denial of service attacks (DOS). Proposed system uses the challenge response and self-certification authority to avoid counterfeiting and zero knowledge protocols allow proving of an assertion.
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