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| 一种支持多频道服务的抗共谋的非对称公钥叛逆者追踪方案 | |
| 引用本文： | 张学军,余国林,周利华.一种支持多频道服务的抗共谋的非对称公钥叛逆者追踪方案[J].电子与信息学报,2006,28(11):2127-2129. |
| 作者姓名： | 张学军 余国林 周利华 |
| 作者单位： | 1. 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,西安,710071 2. 西北第二民族学院信计系,银川,750021 |
| 基金项目： | 国家自然科学基金;广东省深圳市华为技术有限公司资助项目 |
| 摘 要： | 该文提出一种新的叛逆者追踪方案，将会话密钥S分解成S1与S2之和。基于离散对数困难问题，引入多频道服务参数和特殊多项式函数来解密S1，利用中国剩余定理来解密S2。新方案具有支持多频道服务、抗共谋、非对称性、用户密钥的耐用性、黑盒子追踪等优点，并且在DDH(Diffie-Hellman Problem)困难问题的假设下证明了新方案是语义上安全的，通过分析表明新方案的整体性能明显好于已有方案。 |
| 关 键 词： | 多频道服务 抗共谋 非对称 用户密钥的耐用性 黑盒子追踪 |
| 文章编号： | 1009-5896(2006)11-2127-03 |
| 收稿时间： | 2005-04-14 |
| 修稿时间： | 2006-01-06 |
A Collusion-Resistant Asymmetric Public-Key Traitor Tracing Scheme for Multi-channel Services |
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| Zhang Xue-jun,Yu Guo-lin,Zhou Li-hua.A Collusion-Resistant Asymmetric Public-Key Traitor Tracing Scheme for Multi-channel Services[J].Journal of Electronics & Information Technology,2006,28(11):2127-2129. | |
| Authors: | Zhang Xue-jun Yu Guo-lin Zhou Li-hua |
| Affiliation: | Ministry of Edu. Key Lab. of Computer Network and Info. Security, Xidian Univ., Xi’an 710071, China; The Second Northwest Institute Ethnic Minority, Yinchuan 750021, China |
| Abstract: | A new traitor tracing scheme is proposed , whose essential idea is the session key S is divided into a sum of S1 and S2. Based on DL(discrete logarithm)problem, S1 is decrypted by introducing a multi-channel service parameter and a special polynomial function, S2 is decrypted by Chinese Remainder Theorem. The new scheme has many advantages such as multi-service, collusion-resistance, asymmetry, long-lived subscriber’s key and black-box tracing. It is proved to be semantically secure under the DDH (Diffie-Hellman Problem) assumption and its whole capabilities are much better than that of the existing ones. |
| Keywords: | Multi-channel service Collusion-resistance Asymmetry Long-lived subscriber’s key Black-box tracing |
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