Self re-encryption protocol providing strong privacy for low cost RFID system

Authors:
Jeong Su Park;Su Mi Lee;Eun Young Choi;Dong Hoon Lee
Affiliations:
Center for the Information Security Technologies(CIST), Korea University, Seoul, Korea;Center for the Information Security Technologies(CIST), Korea University, Seoul, Korea;Center for the Information Security Technologies(CIST), Korea University, Seoul, Korea;Center for the Information Security Technologies(CIST), Korea University, Seoul, Korea
Venue:
ICCSA'06 Proceedings of the 2006 international conference on Computational Science and Its Applications - Volume Part IV
Year:
2006

Citing 3
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Abstract

RFID(Radio Frequency Identification) system will play a critical role providing widespread services in a ubiquitous environment. However, widespread use of RFID tags may create new threats to a consumer privacy such as information leakage and traceability. It is difficult to solve the problems because a tag has the limited computing power that lacks of supporting the general encryption. Although the scheme of [2] protects a consumer privacy using an external agent, a tag should perform exponential operation requiring high cost. We propose Self Re-Encryption Protocol(SREP) which provides strong privacy without help of any external agent. SREP is well suitable for low cost RFID systems since it only needs multiplication and exclusive-or operation.