期刊名称：International Journal of Computer Science and Network Security
印刷版ISSN：1738-7906
出版年度：2008
卷号：8
期号：2
页码：33-42
出版社：International Journal of Computer Science and Network Security
摘要：Digital right can be applied to various e-commerce applications, such as coupons, tickets and e-cash. The existing digital right schemes only help the issuer to issue digital rights without quantity limitation. However, issuer needs to limit the quantity of his digital rights due to marketing strategy. In this paper, we propose a flexible digital right scheme, such that the issuer can easily control circulation of each broker. Furthermore, we propose one variant based on our first scheme to make a digital right that can be flexibly divided according to owner’s demand. The variant scheme conquers the weakness of paper-based gift coupon, and makes the digital rights more flexible in redemption. Both schemes not only satisfy the confidentiality, anonymity, secure transference, preventing double spending and so on, but also expand the applications of digital rights.
