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DOI:
工程科学与技术:2006,38(4):110-116
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一种新的面向多服务抗共谋非对称叛逆者追踪方案
(1.西北师范大学 教育技术与传播学院,甘肃 兰州 730070;2.北京航空航天大学 计算机学院,北京 100083;3.西安电子科技大学 计算机网络与信息安全教育部重点实验室, 陕西 西安 710071)
A New Multi-service Oriented Collusion-resistant Asymmetric Traitor Tracing Scheme
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投稿时间:2005-11-05    
中文摘要: 为了更好地保护数据提供商和合法用户的实际利益,以及给合法用户提供多种服务,将会话密钥S分解成S1与S2之和,在大整数分解困难问题的条件下,构造特殊等式来解密S1(方案1)。在离散对数困难问题的条件下,利用不经意多项式估值协议(OPE)和拉格朗日插值多项式来解密S2(方案2)。在两种方案组合的基础上形成一种新的叛逆者追踪方案。新方案具有多服务性、抗共谋、非对称性、黑盒子追踪、前向安全性和后向安全性等优点,综合性能好于现有方案
Abstract:To protect the profit of DS (Data Supplier) and authorized users better and provide multiple services for users, a new multi service oriented collusion resistant asymmetric traitor tracing scheme was proposed,in which the session key S was divided into a sum of S1 and S2. Under the condition of large integer factoring problem, S1 was decrypted by constructing a special equation (scheme 1). Under the condition of discrete logarithm problem, S2 was decrypted by OPE (Oblivious Polynomial Evaluation) protocol and Lagrange Interpolation Polynomial (scheme 2).On the basis of the combination of the scheme 1 and scheme 2, a new traitor tracing scheme was formed.The new scheme has many advantages such as multi-service, collusion-resistance, asymmetry, black-box tracing, forward-security and backward security,and its whole capabilities is also better than existing ones.
文章编号:20060423     中图分类号:    文献标志码:
基金项目:国家自然科学基金资助项目(60372046);华为基金资助项目(YSCB2005037NP)
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张学军,姜正涛,周利华.一种新的面向多服务抗共谋非对称叛逆者追踪方案[J].工程科学与技术,2006,38(4):110-116.
.A New Multi-service Oriented Collusion-resistant Asymmetric Traitor Tracing Scheme[J].Advanced Engineering Sciences,2006,38(4):110-116.