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EDL签名中可证明安全的阈下信道封闭协议 被引量：1

Provably Secure Subliminal-free Protocol in EDL Digital Signature
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摘要 首先构造了EDL签名方案中的阈下信道,然后设计了一个交互式阈下信道封闭协议,完全封闭了EDL签名中由参数的随机性所引入的阈下信道,并在RO(random oracle)模型中给出了安全性证明。在CDH(computational Diffie-hellman)问题是困难的假设下,新协议被证明是安全的。在新协议中,看守虽然参与了签名的生成,但却不能伪造签名,从而保证了签名者的签名权力。在计算量方面,签名者和看守分别执行2次和3次模指数运算。 Subliminal channels in EDL signature were constructed firstly,then an interactive subliminal-free protocol was designed.It is shown that the proposed protocol can completely close subliminal channels existing in the random parameters in EDL signature.The proposed protocol is proved to be secure in RO（random oracle） model assuming the CDH（computational Diffie-hellman） problem is hard.In the new protocol,the warden participates the generation of signature,but can not sign messages.Thus,the signature authority of the signer is guaranteed.To generate a signature,it only needs to perform 2 and 3 modular exponentiation for the signer and the warden respectively.
作者 张应辉 马华 王保仓
机构地区 西安电子科技大学理学院 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
出处 《计算机科学》 CSCD 北大核心 2010年第9期72-74,93,共4页 Computer Science
基金 国家自然科学基金(60803149)资助
关键词 密码学 数字签名 信息隐藏 阈下信道 封闭协议 随机预言机模型 Cryptography Digital signature Information hiding Subliminal channel Free protocol Random oracle model
分类号 TP309 [自动化与计算机技术—计算机系统结构]
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参考文献11

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共引文献7

同被引文献12

  • 1杨建萍,周贤伟,杨军.基于阈下信道技术的身份认证机制研究[J].微电子学与计算机,2004,21(12):195-197. 被引量：4
  • 2粟栗,崔国华,李俊,郑明辉.基于签密的分布式安全门限阈下信道方案[J].小型微型计算机系统,2007,28(12):2153-2157. 被引量：1
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  • 5LEE S W, KIM W H, KIM H S, et al. Efficient password-based authenticated key agreement protocolLC ]///Interna- tional Conference on Computer Science and Applications. Perugia.. Springer-Verlag, 2004:617-626.
  • 6KWON J O, SAKURAI K, LEE D H. One-round protocol for two-party verifier-based password-authenticated key exchange[C]//Communications and Multimedia Security. Heraklion. Es. n. ] ,2006: 87-96.
  • 7POINTCHEVAL D. Password-based authenticated key exchange[C]//Proceedings of 15th IACR International Con- ference on Practice and Theory of Public-Key Cryptography. Darmstadt, Springer-Verlag, 2012:390-397.
  • 8FUJIOKA A, SUZUKI K, XAGAWA K, et al. Strongly secure authenticated key exchange from factoring, codes, and lattices[C]//Proceedings of 15th IACR International Conference on Practice and Theory of Public-Key Cryp- tography. Darmstadt. Springer-Verlag, 2012 .. 467-484.
  • 9HUANG Zhen-jie,CHEN Dan,WANG Yu-min. Multi-signature with anonymous threshold subliminal channel for ad-hoc environments[C]//19th International Conference on Advanced Information Networking and Applications. Tamshui, IEEE Press, 2005,67-71.
  • 10谭示崇,张宁,王育民.新的口令认证密钥协商协议[J].电子科技大学学报,2008,37(1):17-19. 被引量：6

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计算机科学
2010年 第9期

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