標題: Secret image sharing with smaller shadow sizes for general access structures
作者: Chen, Ying-Ru
Chen, Ling-Hwei
Shyu, Shyong Jian
資訊工程學系
Department of Computer Science
關鍵字: Shadow size;Secret image sharing;General access structure
公開日期: Nov-2016
摘要: In the area of secret image sharing (SIS), most papers focused on the schemes for threshold or some special access structures. Regarding general access structures (GAS), few results have been found in the literature. Two SIS schemes for GAS were proposed in 2001 and 2010, both are based on qualified sets. However, one distorts the reconstructed secret image, and some extra information is needed in both schemes. Here, we propose three polynomial based SIS schemes for GAS. Considering either qualified or forbidden sets, these schemes can reconstruct the secret image perfectly without any extra information needed. Some proof and analysis on the shadow sizes of the three schemes are given to lead us to choose the one with the smallest size. In addition, we also give some comparisons with two existing schemes, and security issue is also addressed in conclusion.
URI: http://dx.doi.org/10.1007/s11042-015-2734-y
http://hdl.handle.net/11536/132612
ISSN: 1380-7501
DOI: 10.1007/s11042-015-2734-y
期刊: MULTIMEDIA TOOLS AND APPLICATIONS
Volume: 75
Issue: 21
起始頁: 13913
結束頁: 13929
Appears in Collections:Articles