Essential secret image sharing scheme with different importance of shadows

被引：77

作者：

Li, Peng ^{[1
]}

Yang, Ching-Nung ^{[2
]}

Wu, Chih-Cheng ^{[2
]}

Kong, Qian ^{[1
]}

Ma, Yanpeng ^{[1
]}

机构：

[1] North China Elect Power Univ, Dept Math & Phys, Baoding 071003, Hebei, Peoples R China

[2] Natl Dong Hwa Univ, Dept CSIE, Taipei, Taiwan

来源：

JOURNAL OF VISUAL COMMUNICATION AND IMAGE REPRESENTATION | 2013年 / 24卷 / 07期

关键词：

Secret sharing; Secret image sharing; Essential shadow image; Lagrange's interpolation; Information hiding; Visual cryptography; Visual secret sharing; Image processing; STEGANOGRAPHY; AUTHENTICATION; IMPROVEMENTS;

D O I：

10.1016/j.jvcir.2013.07.005

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In (k, n) secret image sharing (SIS), a scheme encrypts a secret image into n shadow images. Any k or more shadow images can be collaborated together to reveal the secret image. Most of the previous SIS schemes don't distinguish the importance of shadows. However, in some application environments, some participants are accorded special privileges due to their status or importance. Thus, some shadows may be more important than others. In this paper, we consider the (t, s, k, n) essential SIS (ESIS) scheme. All n shadows are classified into s essential shadows and (n-s) non-essential shadows. When reconstructing the secret image, the (t, s, k, n)-ESIS scheme needs k shadows, which should include at least t essential shadows. (C) 2013 Elsevier Inc. All rights reserved.

引用

页码：1106 / 1114

页数：9

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