4.2 Article

A new unpredictability-based radio frequency identification forward privacy model and a provably secure construction

期刊

SECURITY AND COMMUNICATION NETWORKS
卷 8, 期 16, 页码 2836-2849

出版社

WILEY-HINDAWI
DOI: 10.1002/sec.1208

关键词

RFID; forward privacy; untraceability; mutual authentication

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The privacy model of radio frequency identification (RFID) systems is for formalizing the adversarial capabilities and the security requirements of RFID anonymity and untraceability. Existing unpredictability-based privacy models such as unp-privacy, eunp-privacy, unp*-privacy, and unp-privacy have captured different kinds of practical attacks, and some of them also have mutual authentication included. However, forward privacy, which allows a tag to remain untraceable even after its corruption, is yet to be well captured in any unpredictability-based privacy models. In this paper, we describe some forward privacy-related attacks that can be launched against RFID tags in practice. We then propose a new unpredictability-based forward privacy model called unp(f)-privacy. It extends an existing one called unp-privacy, which has been shown to be stronger than ind-privacy, unp-privacy, and unp*-privacy. We also propose an RFID protocol that supports forward privacy and mutual authentication. We show that it can be proven secure in the unp(f)-privacy model. Copyright (c) 2015 John Wiley & Sons, Ltd.

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