An Off-Line Divisible E-Cash Scheme Based on Smart Card

Authors:
Liu Wen-yuan;Luo Yong-an;Si Ya-li;Wang Bao-wen;Li Feng
Affiliations:
Yanshan University, China;Yanshan University, China;Yanshan University, China;Yanshan University, China;Yanshan University, China
Venue:
SNPD '07 Proceedings of the Eighth ACIS International Conference on Software Engineering, Artificial Intelligence, Networking, and Parallel/Distributed Computing - Volume 01
Year:
2007

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RO-cash: An efficient and practical recoverable pre-paid offline e-cash scheme using bilinear pairings

Journal of Systems and Software

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Abstract

The unlinkable (N, K) payment is an important divisible solution, but the double-spending problem of the off-line schemes using this method will cause a great loss to the bank. In order to enhance the security of divisible e-cash systems, this paper presents an offline divisible e-cash scheme based on smart card using the elliptic curve cryptography, and describes the protocols in detail. The scheme solves double-spending effectively with two protective mechanisms: the prior restraint of smart card and the check of bank. Furthermore, security and efficiency of the scheme are analyzed.