Lightweight Asymmetric Privacy-Preserving Authentication Protocols Secure against Active Attack
Cui, Yang
Kobara, Kazukuni
Matsuura, Kanta
Imai, Hideki
Inst. of Ind. & Sci., Tokyo Univ.;
Abstract
As pervasive computing technologies develop fast, the privacy protection becomes a crucial issue and needs to be coped with very carefully. Typically, it is difficult to efficiently identify and manage plenty of the low-cost pervasive devices like radio frequency identification devices (RFID), without leaking any privacy information. In particular, the adversary may not only eavesdrop the communication in a passive way, but also mount an active attack to ask queries adaptively, which is obviously more dangerous. Towards settling this problem, in this paper, we propose lightweight authentication protocols which are privacy-preserving against active attack. The protocols are based on a fast asymmetric encryption with novel simplification, which consequently can assign an easy work to pervasive devices. Besides, unlike the usual management of the identities, our approach does not require any synchronization nor exhaustive search in the database, which enjoys great convenience in case of a large-scale system
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