Applied research of group signature for privacy protection in DRM system

Computer Engineering and Applications ›› 2011, Vol. 47 ›› Issue (15): 108-111.

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Applied research of group signature for privacy protection in DRM system

ZHANG Haixin，CHENG Lihong，LI Shundong

School of Computer Science，Shaanxi Normal University，Xi’an 710062，China

Received:1900-01-01 Revised:1900-01-01 Online:2011-05-21 Published:2011-05-21

群签名在DRM系统隐私保护中的应用研究

张海鑫，程丽红，李顺东

陕西师范大学计算机科学学院，西安 710062

Abstract

Abstract: The current Digital Rights Management（DRM） systems can only prevent illegal copying of digital content and protect the interests of content service providers，but it does not take full account of the buyers’anonymous demand.By researching and analysising the existing group signature scheme，and combining the group signature technology，the paper puts forward an anonymous DRM model and makes the legal users have purchasing anonymity.Meanwhile the system can help find the real identities of the illegal users.

Key words: digital right management, group signature, anonymity

摘要： 现在的数字版权管理（DRM）系统注重的只是防止数字内容被非法复制以及保障内容服务商的利益，并没有充分考虑到用户的购买匿名性。具体研究分析了现有的群签名方案，并结合群签名技术，提出一种改进的具有匿名性的DRM系统模型，从而使得合法用户既具有购买匿名性，同时又可以揭露非法用户的真实身份。

关键词: 数字版权管理, 群签名, 匿名性

ZHANG Haixin，CHENG Lihong，LI Shundong. Applied research of group signature for privacy protection in DRM system[J]. Computer Engineering and Applications, 2011, 47(15): 108-111.

张海鑫，程丽红，李顺东. 群签名在DRM系统隐私保护中的应用研究[J]. 计算机工程与应用, 2011, 47(15): 108-111.

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Applied research of group signature for privacy protection in DRM system

群签名在DRM系统隐私保护中的应用研究

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