Improvement of the securing RFID systems conforming to EPC Class 1 Generation 2 standard

Radio frequency identification (RFID) technology is taking the place of barcodes to become electronic tags of the new generation. EPC Class 1 Generation 2 has served as the most popular standard for passive RFID tags. In 2010, Yeh et al. proposed a new RFID authentication protocol conforming to EPC Class 1 Generation 2 standard. However, this paper demonstrates that Yeh et al.’s protocol has two serious security problems such as DATA integrity problem and forward secrecy problem unlike their claims. An improved protocol is also proposed which can prevent the security problems and be applied in low-cost RFID environments requiring a high level of security.