A New Approach to Image Sharing with High-Security Threshold Structure

Image sharing is an attractive research subject in computer image techniques and in the information security field. This article presents a novel scheme of image sharing with a ( t , n ) high-security threshold structure. The scheme can encode secret images into n shadow images in such a way that al...

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Bibliographic Details
Published inJournal of the ACM Vol. 61; no. 6; pp. 1 - 19
Main Authors Wang, Xiaojing, Yuan, Qizhao, Cai, Hongliang, Fang, Jiajia
Format Journal Article
LanguageEnglish
Published New York Association for Computing Machinery 01.11.2014
Subjects
Computer information security
Data encryption
Information sharing
Interpolation
Pixels
Polynomials
Shadows
Studies
Thresholds
Visual
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Summary:Image sharing is an attractive research subject in computer image techniques and in the information security field. This article presents a novel scheme of image sharing with a ( t , n ) high-security threshold structure. The scheme can encode secret images into n shadow images in such a way that all the shadow images are in a perfect and ideal ( t , n ) threshold structure, while each shadow image has its own visual content assigned at random. The most common method to implement image sharing is based on interpolation polynomial over the field F p ={0, 1, 2,…, p -1} [Shamir 1979]. In this article, the authors present a new approach to image sharing and its computation based on algebraic-geometry code over the pixel value field GF(2 m ).
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ISSN:0004-5411
1557-735X
DOI:10.1145/2666470