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arXiv 1409.0089cs.CR
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一般接入结构下的多用户多秘密共享方案

Multi-Use Multi-Secret Sharing Scheme for General Access Structure

Partha Sarathi Roy, Avishek Adhikari

摘要:

本文的主要目的是利用合适的散列函数和拉格朗日插值方法构造一个可信代理商模型下的一般访问结构的多秘密共享方案。尽管该方案是一个多秘密多用途的方案,但每个参与者只需携带一份密钥。抗冲突单向散列函数的合理使用使得该方案具有高效性和多用途性。此外,该方案具有一个很好的性质,秘密,参与者或合格的参与者集可以被添加到或甚至可以由经销商动态地使其无效,以获得新的访问结构,而不改变现有参与者在旧的访问结构中的份额。最后,在所提出的方案中,合并者和股份持有者都可以验证他们从彼此接收的信息的正确性。

英文摘要:

The main aim of this paper is to construct a multi-secret sharing scheme for general access structure in a trusted dealer model using suitable hash function and Lagrange's interpolation method. Even though, the proposed scheme is a multi-secret and multi-use one, each participant has to carry only one share. The suitable use of collision resistant one way hash function makes the scheme efficient and multi-use. Moreover, the scheme has a nice property that secrets, participants or qualified sets of participants may be added to or even may be made inactive dynamically by the dealer to get a new access structure without altering the shares of the existing participants in the old access structure. Finally, in the proposed scheme, both the combiner and the share holders can verify the correctness of the information that they are receiving from each other.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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