An Exchangeable E-Cash Scheme by E-mint

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Title:	An Exchangeable E-Cash Scheme by E-mint
Authors:	黃明祥;Hwang, Min-Shiang
Contributors:	資訊工程學系
Date:	2008.09
Issue Date:	2013-12-26 11:01:19 (UTC+0)
Abstract:	The electronic payment systems are gradually used after the electronic commerce was in fashion. However, the electronic cash (E-cash) in every electronic payment system cannot be circulated to other e-cash systems. In addition, the e-cash usually presents a fixed amount of money and should be used the whole amount in a trade. It is difficult to have the change back when the purchase price is lower than the amount of the e-cash. Herein, we proposed an e-mint system based on the Song-Korba's scheme which offered the anonymity and no-repudiation properties. The proposed scheme not only can circulate all e-cash systems but also allows exchanging a large amount of the e-cash into some small amounts of e-cash. Therefore, anyone can keep the remainder money if he does not spend the whole amount of the e-cash in a trade.
Relation:	The 8th International Conference on Intelligent Systems Design and Applications (ISDA 2008)
Appears in Collections:	[Department of Computer Science and Information Engineering] Proceedings

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