计算机工程与应用 ›› 2009, Vol. 45 ›› Issue (7): 127-128.DOI: 10.3778/j.issn.1002-8331.2009.07.039

• 网络、通信、安全 • 上一篇    下一篇

基于证书的可验证多秘密共享方案

白 晓,余梅生   

  1. 燕山大学 信息科学与工程学院,河北 秦皇岛 066004
  • 收稿日期:2008-01-21 修回日期:2008-09-16 出版日期:2009-03-01 发布日期:2009-03-01
  • 通讯作者: 白 晓

Verifiable multi-secret sharing scheme based on certificate

BAI Xiao,YU Mei-sheng   

  1. College of Information Science and Engineering,Yanshan University,Qinhuangdao,Hebei 066004,China
  • Received:2008-01-21 Revised:2008-09-16 Online:2009-03-01 Published:2009-03-01
  • Contact: BAI Xiao

摘要: 提出了基于证书的可验证多秘密共享方案,不仅可以同时验证庄家和参与成员的诚实性,而且不需要安全信道为参与者传递秘密信息。该方案还具备在同一组分享者中可共享任意多个秘密,且参与者只需使用同一个子秘密就可恢复任意多组秘密的特点。当有新的参与者加入时,庄家只需公布一个由多项式函数计算出来的公开值,不需要更改已有参与者的信息。

Abstract: This paper presents a Verifiable Multi-secret Sharing Scheme(VMSS) based on certificate.It cannot only verify the honesty of the dealer and participants at the same time,but also needn’t safe channel to send secret shares.Another property of the scheme is that arbitrary number of secrets can be shared in a group of participants.Additionally each participant can use the same share to reconstruct arbitrary number groups of secrets.When a new member would like to enter,the dealer mustn’t change the information of existing members,but publish an open value computed by polynomial function.