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Secret sharing based on hyperplane geometry with its application in cryptographic protocols

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地点:长安校区 文津楼三段6628报告厅

主办单位:计算机科学学院 网络信息安全团队

报告时间201966日(星期四) 8:30-10:00

报告人:夏喆 教授

报告内容简介:

In this talk, we revisit the secret sharing based on hyperplane geometry introduced by Blakley, and introduce its potentials that were not known by the crypto research community before. First, we show how it can be used to design threshold Paillier encryption so that the interpolation over Z_{\phi(n)} problem can be completely avoided. Second, we show that it has computational advantages over the secret sharing based on polynomial interpolation in (n, n) threshold secret sharing, and this attractive feature has many applications in designing cryptographic protocols, e.g. proactive secret sharing and attribute-based encryptions.

报告人简介:

夏喆,男,19827月出生,博士、武汉理工大学副教授、硕士生导师。2009年获得英国萨里大学博士学位,2009年至2013年在英国萨里大学从事博士后研究,2017年至2018年在澳大利亚伍伦贡大学进行访问学习,主要研究方向为密码学和信息安全。近年来在TIFSDCCIET Information SecurityACISP等国际期刊会议上发表学术论文40余篇,曾担任澳大利亚学术委员会(ARC)信息安全方向评审及ESORICS, EVT, Vote-ID等国际学术会议程序委员会委员。目前担任中国计算机学会推荐国际期刊《Journal of Information Security and Application》的副主编(Associate Editor),以及多个信息安全专刊的编委。

 

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