Design of anti-collision integrated security mechanism based on chaotic sequence in UHF RFID system

Abstract

RFID applications. It is necessary to mitigate or solve the tag collision and security problem so as to promote the applications of RFID [1].Anti-collision schemes are built upon four multiplexing access technologies: CDMA, TDMA, FDMA and SDMA [2]. In RFID applications, the TDMA suffers from a large number of collisions. The result is an increase in tag identification time and lower system throughput. Both techniques, SDMA and FDMA, are relatively expensive, and thus restricted to specialized applications. CDMA technology can be very attractive for RFID communication [3]. But due to the limited number of the codes, CDMA techniques are commonly combined with DSFA schemes [2,4] . In RFID privacy and security, most typical hash-based RFID protocols for mutual authentication have been proposed including the Hash-Lock protocol, the randomized Hash-Lock protocol, and Hash chain protocol and LCAP protocol, which take advantage of a one-way function to prevent direct exposure of ID [5] . But these methods often suffer from de-synchronization attack. Other solutions for RFID [6], such as DES or AES, are relatively more expensive than hash functions.The merging of RFID security and anti-collision is a new trend in RFID research. The [7] proposes a lightweight random key double-authentication, but the DSFA algorithm cannot Abstract: Collision and security issues are considered as barriers to RFID applications. In this paper, a parallelizable anti-collision based on chaotic sequence combined dynamic frame slotted aloha to build a high-efficiency RFID system is proposed. In the tags parallelizable identification, we design a Discrete Markov process to analyze the success identification rate. Then a mutual authentication security protocol merging chaotic anti-collision is presented. The theoretical analysis and simulation results show that the proposed identification scheme has less than 45.1 % of the identification time slots compared with the OVSF-system when the length of the chaos sequence is 31. The success identification rate of the proposed chaotic anti-collision can achieve 63% when the number of the tag is 100. We test the energy consumption of the presented authentication protocol, which can simultaneously solve the anti-collision and security of the UHF RFID system.

Survey on Prominent RFID Authentication Protocols for Passive Tags

“…Another anti-collision security protocol (ACS) is proposed by Keqiang et al [ 36 ] for a high-efficiency RFID system combining the chaotic sequence generator with the dynamic frame-slotted ALOHA algorithm for fast tag identification. The protocol scheme is based on a logistic mapping structure with XOR operation and spreading operation to generate real-time keys in a chaotic sequence that are used in authentication messages.…”