Deterministic cloned tag detection protocol for anonymous radio-frequency identification systems
Tag cloning attack is a serious threat to the radio-frequency identification (RFID) applications. Cloned tags detection is an effective security mechanism to prevent the attacks. To improve the accuracy and efficiency of detection for cloned tags, this study presents a deterministic cloned tags detection (DCTD) protocol for anonymous RFID systems to detect cloned tags, using a tree-based anti-collision algorithm to find irreconcilable collisions. This protocol, which uses the pseudonym of tags in the detecting process, can quickly detect all the cloned tags with a deterministic time without revealing the sensitive information. Experiments show that DCTD protocol, with less detection time and higher accuracy, outperforms the known detection protocols.