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中国科学院大学学报 ›› 2004, Vol. 21 ›› Issue (2): 210-217.DOI: 10.7523/j.issn.2095-6134.2004.2.010

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公开可验证的秘密重新分配门限方案(英文)

谭作文, 刘卓军   

  1. 中国科学院数学与系统科学研究院数学机械化重点实验室, 北京 100080
  • 收稿日期:2003-04-07 修回日期:2003-06-28 发布日期:2004-03-19

Publicly Verifiable Secret Redistribution forThreshold Secret Sharing Scheme

TAN Zuo-Wen, LIU Zhuo-Jun   

  1. Key Lab. of Mathematics Mechanization, Institute of Systems Science, AMSS, Chinese Academy of Sciences, Beijing 100080, China
  • Received:2003-04-07 Revised:2003-06-28 Published:2004-03-19
  • Supported by:

    supported by 973 Project(1998030600)

摘要:

建立了一个公开可验证秘密重新分配模型,并提出了一个公开可验证秘密重新分配方案.这个方案将秘密从(t1,n1)接入结构分配到(t2,n2)接入结构.在对旧的份额和子份额的有效性进行检验后,新的分享者能产生有效的新份额.在此方案中,新的分享者能验证其他分享者的子份额的有效性.

关键词: 可验证秘密共享, 秘密重新分配, 门限方案, 接入结构

Abstract:

This paper presents a publicly verifiable secret redistribution model,and proposes a PVSRscheme.The scheme can redistribute secrets from a (t1, n1)to (t2,n2)access structure.New shareholderscan generate valid new shares if they can verify both the validity of the old share and that of the subshareswhich the shareholders give the new shareholders.In the scheme,other new shareholders can determinethe validity of the sub-shares of a new shareholder

Key words: VSS, PVSR, threshold, access structure

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