Protecting Your Privacy with a Mobile Agent Device in RFID Environment

Abstract

Radio Frequency Identification (RFID) Technology is a contactless automatic identification technology using radio frequency. For this RFID technology to be widely spread, the problem of privacy invasion should be solved. There are many research works in progress to solve the RFID privacy problems. Most of works for solving this problem have focused on developing light-weight cryptographic modules which can be embedded into RFID tags, but some of them used a proxy agent approach that control communications between the tag and the reader for protecting user privacy. The later approach is very useful and practical in terms of manufacturing low-cost tag hardware. However, all schemes of this approach have some problems in ownership transfer and forgery detection. In this paper, we are focusing on the proxy agent approach and we suggest an advanced agent scheme that guarantees not only privacy protection but also forgery detection. And our scheme is more scalable than other agent schemes so far.