A privilege-based visual secret sharing model

NCUIR > School of Management at National Central University > Department of Information Management > journal & Dissertation > Item 987654321/106306

Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/106306

Title:	A privilege-based visual secret sharing model
Authors:	蔡志豐;Hou, Young-Chang;Quan, Zen-Yu;Tsai, Chih-Fong
Contributors:	管理學院資訊管理學系
Keywords:	Image encryption;Image sharing;Information hiding;Privileged share;Progressive reconstruction;Unexpanded share;Visual cryptography;Visual secret sharing
Date:	2015-11-01
Issue Date:	2026-04-23 13:17:12 (UTC+8)
Publisher:	Academic Press Inc.;Elsevier Inc
Abstract:	摘要： •The first paper discusses the privilege concept in visual cryptography.•A model is proposed to help the design of the sharing matrices.•High privilege participant has better capability to reveal the secret image.•The restored image has better contrast than other researches. In traditional visual secret sharing (VSS) schemes, every transparency has the same capability for recovery of the secret image. This means that managers are unable to assign an appropriate privilege to participants according to their importance. One way to solve this problem would be to assign each share a suitable recovery capability. In this study, we propose a novel secret sharing method, the privilege-based visual secret sharing model (PVSSM), which allows participants with different privileges. It is assumed that participants having a higher privilege will have a higher ability to recover the secret image. The proposed PVSSM has the following advantages: (1) Each share has an appropriate capability to reveal the secret information corresponding to the privilege of the share holder. (2) The restored image has a better contrast than the traditional VSS method can achieve. (3) The share has the same size as the secret image. 出版者： Elsevier Inc 出版日期： 2015-11 出處： Journal of visual communication and image representation, 2015-11, Vol.33, p.358-367 資源來源： Elsevier ScienceDirect Journals Complete 版權： 2015 Elsevier Inc. 識別號： ISSN: 1047-3203 識別號： EISSN: 1095-9076 識別號： DOI: 10.1016/j.jvcir.2015.10.005
Appears in Collections:	[Department of Information Management] journal & Dissertation

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