Friendly Color Visual Secret Sharing by Random Grids

Article type: Research Article

Authors: Chen, Tzung-Her | Tsao, Kai-Hsiang | Yang, Yan-Ting

Affiliations: Department of Computer Science and Information Engineering National Chiayi University 300 University Rd., Chiayi City, Taiwan 60004. E-mail: thchen@mail.ncyu.edu.tw | Department of Computer Science and Information Engineering National Chiayi University, Taiwan

Abstract: The visual secret sharing (VSS) approach by random grids (RG-based VSS) has drawn people's attention "again" recently. Nevertheless, the current RG-based VSS approaches suffer from the problem of meaningless share images (cipher-grids) so that it is not user-friendly to manage noise-like share images. This paper presents a novel color RG-based VSS scheme aiming at providing the friendly color cipher-grids with all the advantages of traditional VSS schemes. To our best knowledge, this paper is the first effort to develop the friendly technique. The experimental results show that the scheme does work.

Keywords: Random Grid, Visual Secret Sharing, Visual Cryptography, Friendly, Meaningful

DOI: 10.3233/FI-2009-167

Journal: Fundamenta Informaticae, vol. 96, no. 1-2, pp. 61-70, 2009