Abstract
Diffusing RFID–sensor networks have been used widely in many domains. In this paper, a framework consisting of RFID systems and wireless sensor nodes is proposed, it can alleviate the distance limitation problem in traditional RFID systems; a secure authentication protocol and corresponding search protocol based on one–way hash function are proposed subsequently, the authentication protocol only requires O(1) work to identify and authenticate a tag in the backend server and is particularly suitable for the low–cost RFID systems, the security characters of these two protocols are analysed as well.
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