计算机工程与应用 ›› 2007, Vol. 43 ›› Issue (28): 125-126.

• 网络、通信与安全 • 上一篇    下一篇

动态广义秘密共享方案

赵 荣1,戴 芳1,赵凤群1,赵建杰2   

  1. 1.西安理工大学 理学院,西安 710054
    2.陕西师范大学 数学与信息科学学院,西安 710062
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-10-01 发布日期:2007-10-01
  • 通讯作者: 赵 荣

Dynamic general secret sharing scheme

ZHAO Rong1,DAI Fang1,ZHAO Feng-qun1,ZHAO Jian-jie2   

  1. 1.School of Sciences,Xi′an University of Technology,Xi’an 710054,China
    2.College of Mathematics and Information Science,Shaanxi Normal University,Xi’an 710062,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-10-01 Published:2007-10-01
  • Contact: ZHAO Rong

摘要: 基于RSA密码体制和Pinch方案[12]提出了一种动态广义秘密共享方案。方案可以防止分发者和参与者的欺诈;一个参与者秘密份额的泄漏不会影响其他成员秘密份额的安全性;当更新秘密后,参与者各自的秘密份额可以重用;方案不需要安全信道,降低了系统代价。

关键词: 密码学, 广义秘密共享, 动态秘密共享, RSA密码体制, 可验证性

Abstract: A new dynamic general secret sharing scheme,based on the RSA cryptosystem and the Pinch’s scheme,is proposed in this paper.The scheme can identify the cheaters no matter she/he is the dealer or the participant;the leakage of the shadow of a participant will not affect the security of other participants’ shadows;the shadows can be reused when refreshing the secret;no security channel exists between the dealer and the participants,the property lower the costs of the system.

Key words: cryptography, general secret sharing, dynamic secret sharing, RSA cryptosystem, verification