Security Cryptography for Low-Cost RFID Tags
Yorheza R. Widi · 2006
Radio-frequency identification (RFID) is an automatic identification method, relying on storing and remotely retrieving data using devices called RFID tags or transponders. Today RFID use in many application, especially in supply chain which they can improve the efficiency start from manufacturing plant until POS (Point of Sales) . However, despite these promises, the possible abuse by retailers and government agencies of RFID's tracking capability raises questions about potential violations of personal privacy. Now more RFID security feature have been propose and researched, but after we satisfy with the security problem another problem arise. Now the cheapest RFID tag was 5 cents for high volume delivery, still far away for replacing bar-coding tags which consider priceless. In this paper we want to propose a new low computational RFID scheme to lowering RFID tag manufacturing cost as low as possible and gain larger scalability and as we mention before for this study security problems are not considered. Our proposed protocol is reliable enough against the active attacks such as the man in-the-middle attack, and the replay attack as well as the data loss. The protocol is based on mutual authentication between a tag and a back-end server, and provides authentication for the reader in case the reader is not regarded as the trusted third party (TTP). As tags only have hash function and exclusive-or operation, our proposed protocol is very feasible for low-cost RFID system compared to the previous works. The formal proof of correctness is firstly provided for the proposed authentication protocol based on GNY logic.