Qingsong Yao Yong Qi Jinsong Han Jizhong Zhao Xiang-Yang Li Yunhao Liu Randomizing RFID Private Authentication. 1-10 2009 PerCom http://dx.doi.org/10.1109/PERCOM.2009.4912773 conf/percom/2009 db/conf/percom/percom2009.html#YaoQHZLL09