RFID application brings huge conveniences, but low-cost tags were not designed to have much access control mechanism. The tag’s information is easily read by anyone. So far, there are many schemes proposed to protect the user privacy for using RFID. In general, user privacy includes data privacy and location privacy. Since most of the proposed schemes just provide the protection for data privacy. Recently the scheme proposed by Lee proposed can protect both data privacy and location privacy. Our scheme based on the scheme proposed by Lee, and we improve Lee‘s weakness and can apply on someone sells his RFID system in security, to make our scheme achieves the feature of ownership transfer.
