Hierarchical secret sharing schemes secure against rushing adversary: Cheater identification and robustness

Partha Sarathi Roy, Sabyasachi Dutta, Kirill Morozov, Avishek Adhikari, Kazuhide Fukushima, Shinsaku Kiyomoto, Kouichi Sakurai

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

5 被引用数 (Scopus)

抄録

Threshold access structures of secret sharing schemes capture a scenario in which all the participants have the same weight (or power) and their contributions are equal. However, in some situations such as gradation among officials in an organization, the participants have different weights. Hierarchical access structures capture those natural scenarios, where different levels of hierarchy are present and a participant belongs precisely to one of them. Although an extensive research addressing the issues of cheater identifiability and robustness have been done for threshold secret sharing, no such research has been carried out for hierarchical secret sharing (HSS). This paper resolves this long-standing open issue by presenting definitions and constructions of both cheater identifiable and robust HSS schemes secure against rushing adversary, in the information-theoretic setting.

本文言語英語
ホスト出版物のタイトルInformation Security Practice and Experience - 14th International Conference, ISPEC 2018, Proceedings
編集者Hiroaki Kikuchi, Chunhua Su
出版社Springer Verlag
ページ578-594
ページ数17
ISBN(印刷版)9783319998060
DOI
出版ステータス出版済み - 2018
イベント14th International Conference on Information Security Practice and Experience, ISPEC 2018 - Tokyo, 日本
継続期間: 9 25 20189 27 2018

出版物シリーズ

名前Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
11125 LNCS
ISSN(印刷版)0302-9743
ISSN(電子版)1611-3349

その他

その他14th International Conference on Information Security Practice and Experience, ISPEC 2018
国/地域日本
CityTokyo
Period9/25/189/27/18

All Science Journal Classification (ASJC) codes

  • 理論的コンピュータサイエンス
  • コンピュータ サイエンス(全般)

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