摘要
针对参与者权重不同,提出了一种基于权重的免置乱图像秘密共享方案。方案通过计算参与者的加权权重,确定影子图像的像素值个数,采用一次Shamir(t,n)门限方案计算影子图像的像素值。实验和分析表明本方案免除了置乱处理,满足轮廓安全性,能有效反映出参与者的重要程度,影子图像的压缩率为qt,且少于t个参与者即可恢复出原始图像。
A weight - based non - permutated image secret sharing scheme is proposed for different weights of partici- pants. The scheme determines the number of pixel values of the shadow image by calculating the weighted weights of the participants, and uses a Shamir（ t, n） threshold scheme to calculate the pixel values of the shadow image. Experiment and analysis show that this scheme eliminates permutate, satisfies contour security, and reflect the importance of the partici- pants effectively, the compression rate of shadow image is q/t , the original image can be recovered by participants which less than t.
作者
侯颖
HOU Ying(College of Mathematics and Information Science,Guiyang University,Guiyang 550005 Guizhou,China)
出处
《贵阳学院学报（自然科学版）》
2018年第2期77-79,共3页
Journal of Guiyang University：Natural Sciences
基金
贵州省科技厅联合基金项目:"基于权重的高效免置乱图像秘密共享方案的设计与实现"(项目编号:黔科合[LH字]7176号)
关键词
权重
免置乱
图像秘密共享
加权权重
轮廓安全
Weight
Non - pernmtated
hnage secret sharing
Weighted weight
Contour security
