Timed-Release Computational Secret Sharing Scheme and Its Applications
Timed-Release Computational Secret Sharing Scheme and Its Applications
复制标题
定时发布计算秘密共享方案及其应用
DOI:
10.1007/978-3-319-12475-9_24
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发表时间:
2014
期刊:
影响因子:
--
通讯作者:
Yohei Watanabe and Junji Shikata
中科院分区:
文献类型:
--
作者:
富田信一朗;渡邉洋平;四方順司;Yohei Watanabe and Junji Shikata
A secret sharing scheme is an important cryptographic primitive. In this paper, we focus on a computational secret sharing (CSS) scheme, which is a practical, simple secret sharing scheme, with timed-release functionality, which we call a timed-release computational secret sharing (TR-CSS) scheme. In TR-CSS, participants more than or equal to a threshold number can reconstruct a secret by using their shares only when the time specified by a dealer has come. Our TR-CSS can be regarded as a natural extension of Krawczyk’s CSS, and we finally succeed to add timed-release functionality to Krawczyk’s CSS with small overhead, which seems to be almost optimal. Moreover, we show our proposal of TR-CSS is important for constructing threshold encryption and multiple encryption with timed-release functionality in a generic and efficient way.
影响因子:
22.7
作者:
SHAMIR, A
通讯作者:
SHAMIR, A
DOI:
--
发表时间:
2015
期刊:
Springer LNCS
影响因子:
--
作者:
Yohei Watanabe;Junji Shikata
通讯作者:
Junji Shikata