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基于安全多方计算的数字作品所有权证明
引用本文:朱岩,杨永田,孙中伟,冯登国. 基于安全多方计算的数字作品所有权证明[J]. 软件学报, 2006, 17(1): 157-166
作者姓名:朱岩  杨永田  孙中伟  冯登国
作者单位:哈尔滨工程大学,计算机科学与技术学院,黑龙江,哈尔滨,150001;中国科学院,信息安全国家重点实验室,北京,100049
基金项目:Acknowledgement The authors would like to thank the anonymous reviewers of this paper for their insightful comments and suggestions and also thank the researchers in the State Key Laboratory of Information Security in the Chinese Academy of Sciences for their valuable discussions and comments.
摘    要:数字作品的所有权证明允许在不泄漏任何秘密信息和防止所有者欺骗的前提下,对版权声明进行验证.提出一种基于Proactive可验证秘密共享和安全多方计算的数字作品所有权证明方案.在该方案中,可验证秘密共享,保证了所有权秘密的正确性,并防止对协议参与者的欺骗.通过Proactive安全提供自动恢复功能来保证协议生存周期内秘密的完整性和安全性.使用安全多方计算和同态承诺的零知识证明,实现了所有权验证.在不假设可信方存在的前提下,所提出方案能够在没有太多成员合谋的情况下,完成有效计算并发现不忠实成员.

关 键 词:所有者证明  安全多方计算  前向秘密共享  承诺协议  数字水印
收稿时间:2004-06-30
修稿时间:2005-05-08

Ownership Proofs of Digital Works Based on Secure Multiparty Computation
ZHU Yan,YANG Yong-Tian,SUN Zhong-Wei and FENG Deng-Guo. Ownership Proofs of Digital Works Based on Secure Multiparty Computation[J]. Journal of Software, 2006, 17(1): 157-166
Authors:ZHU Yan  YANG Yong-Tian  SUN Zhong-Wei  FENG Deng-Guo
Affiliation:1.Computer Science and Technology College, Harbin Engineering University, Harbin 150001, China;2.The State Key Laboratory of Information Security, The Chinese Academy of Sciences, Beijing 100049, China
Abstract:Ownership proofs of digital works allow to justify the copyright claim to the buyers without revealing any secret information and prevent the owner from deceiving without the assumption of the trus ted individual. This paper proposes an ownership proofs scheme for digital works based on proactive verifiable secret sharing and secure multiparty computation. In the proposed scheme, verifiable secret sharing ensures the correctness of ownership secrets and achieves security against cheating participants. Proactive security provides an automatic recovery feature to maintain the integrity and security of secret throughout the lifetime of the scheme. Furthermore,the ownership verification is implemented by using secure multiparty computation and zero-knowledge proofs with homomorphic commitments. Without the assumption of the existence of a trusted individual, the proposed scheme can provide effective computation and discover the dishonesty if not too many individuals collude.
Keywords:ownership proof  secure multiparty computation  proactive secret sharing  commitment scheme  digital watermarking
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