%0 Journal Article %A LI Xiyuan %A SUN Chao %A ZHENG Wei %T RFID mutual-authentication protocol based on PRF %D 2018 %R 10.3778/j.issn.1002-8331.1707-0003 %J Computer Engineering and Applications %P 67-70 %V 54 %N 17 %X Aiming at the problems of security defects and low authentication efficiency in existing RFID security protocols, an improved RFID bi-directional authentication protocol based on PRF is proposed. Encrypting the random numbers generated by the reader solves the existing security risks of the protocol. Using random numbers keeps the information of the label fresh. Compared with the existing security authentication protocol, the result shows that the improved protocol not only has the characteristics of anti-tracking, anti-violent crack and anti-replay attack, but also ensures that the tag does not greatly increase the calculation. %U http://cea.ceaj.org/EN/10.3778/j.issn.1002-8331.1707-0003