Threshold changeable secret sharing with secure secret reconstruction.

Keju Meng,Fuyou Miao,Wenchao Huang,Yan Xiong

Information Processing Letters（2020）

引用 20|浏览66

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摘要

•Firstly, a basic TCSS scheme based on a bivariate polynomial is proposed to thwart illegal participant attack.•Secondly, an improved TCSS scheme is proposed to reduce coefficients of shares for each shareholder.•Thirdly, both the two schemes are dealer-free, non-interactive and cheating immune.

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关键词

Threshold changeable secret sharing,Univariate polynomial,Bivariate symmetric polynomial,Illegal participant attack,Cryptography

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