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http://dx.doi.org/10.13089/JKIISC.2004.14.1.3

An Anonymous Rights Trading System using group signature schemes  

주학수 (한국정보보호진흥원)
김대엽 (삼성종합기술원)
이동훈 (고려대학교 CIST)
Publication Information
Journal of the Korea Institute of Information Security & Cryptology / v.14, no.1, 2004 , pp. 3-13 More about this Journal
Abstract
E-Commerce is suddenly spreading in a daily life. A rights trading system is a system that circulates digital-tickets such as plane tickets, software license, coupon. There are two main approaches so far account-based and smart-card based systems. The NTT Proposed FlexToken, a new smart card based copy prevention scheme for digital rights. They Proposed using pseudonymous self certified keys of Petersen and Horster in order to ensure anonymity of users. However. Petersen and Holster's scheme should register a pseudonymous key pair at TTP (One-time) every time so that users create the signature which is satisfied with unlinkability property In this paper, we propose a new anonymous rights trading system using group signature. This paper has a meaning having applied to digital rights trading system an efficient smart card based group signature.
Keywords
Digital Rights; Group Signature; Anonymity; Unlinkability;
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