Abstract
The low-cost RFID tags have very limited computing and storage resources and this makes it difficult to completely solve their security and privacy problems. Lightweight authentication is considered as one of the most effective methods to ensure the security in the RFID system. Many light-weight authentication protocols use Hash function and pseudorandom generator to ensure the anonymity and confidential communication of the RFID system. But these protocols do not provide such security as they claimed. By analyzing some typical Hash-based RFID authentication protocols, it is found that they are vulnerable to some common attacks. Many protocols cannot resist tracing attack and de-synchronization attack. Some protocols cannot provide forward security. Gy?z? Godor and Sandor Imre proposed a Hash-based authentication protocol and they claimed their protocol could resist the well-known attacks. But by constructing some different attack scenarios, their protocol is shown to be vulnerable to tracing attack and de-synchronization attack. Based on the analysis for the Hash-based authentication protocols, some feasible suggestions are proposed to improve the security of the RFID authentication protocols.
Highlights
With the development and application of the Internet of Things (IoT), Radio Frequency IDentification (RFID) technique gets the wide attention from various fields
Some lightweight authentication protocols are proposed to satisfy the special requirements of the RFID system
These protocols only use Hash function, CRC function, pseudorandom generating function, and some bitwise operations to complete the authentication of the RFID system
Summary
With the development and application of the Internet of Things (IoT), Radio Frequency IDentification (RFID) technique gets the wide attention from various fields. RFID is a pervasive technology deployed to identify and trace some objects automatically It uses radio-waves to communicate, without visible light and physical contact. Some physical methods have been proposed to solve the security and privacy of the RFID system, the research results show that it is the most flexible and effective method to use software encryption and authentication technique. These protocols only use Hash function, CRC function, pseudorandom generating function, and some bitwise operations to complete the authentication of the RFID system They have still some flaws so that they cannot completely solve the security and privacy of the RFID system [3] [4].
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