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Issue No. 02 - March/April (2011 vol. 8)
ISSN: 1545-5971
pp: 315-317
Hung-Min Sun , National Tsing Hua University, Hsinchu
Wei-Chih Ting , Industrial Technology Research Institute, Hsinchu
King-Hang Wang , Hong Kong Institute of Technology, Hong Kong
Security issues become more and more significant in RFID development. Recently, Chien proposed an ultralightweight RFID authentication protocol in order to achieve privacy and authenticity with limited computation and transmission resources. However, we find two desynchronization attacks to break the protocol. In order to repair the protocol, two patches that slightly modify the protocol are presented in the paper.
Security, privacy, authentication, RFID, synchronization.

K. Wang, W. Ting and H. Sun, "On the Security of Chien's Ultralightweight RFID Authentication Protocol," in IEEE Transactions on Dependable and Secure Computing, vol. 8, no. , pp. 315-317, 2009.
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