Visual Secret Sharing Scheme with Distributed Levels of Importance of Shadows

Sabyasachi Dutta, Tamal Bhore, M. Kutubuddin Sardar, Avishek Adhikari, Kouichi Sakurai

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

抄録

We put forward a construction of visual cryptographic scheme (VCS) to address the scenario, where there are several levels of importance of shadows. Traditional (k, n)-threshold VCS does not distinguish among the shadows—all shadows are of equal importance. Any k of them can recover the secret image whereas less than or equal to k- 1 shadows do not reveal any information about the secret image. We consider the scenario where there are several levels of essential participants (labeled according to their importance) and there must be an agreement across the levels to recover the secret image. This captures the distribution of importance of parties across several levels or compartments. We give a novel construction of visual cryptographic scheme realizing such access structures, where the parties are compartmented into different levels according to their importance. We come up with closed mathematical formulae of pixel expansion and relative contrast. We also consider more efficient probabilistic construction and compare contrasts with several other probabilistic, non-expansible constructions. Numerical evidence shows that our scheme performs better than the available generic constructions.

本文言語英語
ホスト出版物のタイトルProceedings of the Fifth International Conference on Mathematics and Computing - ICMC 2019
編集者Debasis Giri, Anthony T.S. Ho, S. Ponnusamy, Nai-Wei Lo
出版社Springer Science and Business Media Deutschland GmbH
ページ19-32
ページ数14
ISBN(印刷版)9789811554100
DOI
出版ステータス出版済み - 2021
イベント5th International Conference on Mathematics and Computing, ICMC 2019 - Bhubaneswar, インド
継続期間: 2 6 20202 9 2020

出版物シリーズ

名前Advances in Intelligent Systems and Computing
1170
ISSN(印刷版)2194-5357
ISSN(電子版)2194-5365

会議

会議5th International Conference on Mathematics and Computing, ICMC 2019
国/地域インド
CityBhubaneswar
Period2/6/202/9/20

All Science Journal Classification (ASJC) codes

  • 制御およびシステム工学
  • コンピュータ サイエンス(全般)

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