摘要
在一般存取结构的可视密码方案中引入了分级的概念,使得不同等级的用户可以获得不同的信息.在一般存取结构的基础上,通过构造属于不同等级的集合,最高级别的参与者集合可以直接恢复出秘密图像,而低级别的参与者只能通过与最高级别的参与者的结合才能得到秘密.提出的基于多级别的可视密码方案为参与者规定了不同级别的权限.
To make different users with different status obtain different information, the concept of hierarchical participant was introduced into the visual cryptography scheme for general access structures. Based on the general access structures, by constructing the sets to different levels, the super - participants can reveal the original secret directly by superimposing their shadows, but the sub -participants cannot obtain the secret image unless they combine with the super -participants＇ shadows. The proposed multilevel -based visual cryptography scheme for general access structures constructs several levels to restrict their rights.
出处
《哈尔滨工业大学学报》
EI
CAS
CSCD
北大核心
2008年第12期2075-2077,共3页
Journal of Harbin Institute of Technology
基金
国家重点基础研究发展计划资助项目(2007CB31120)
“十五”国家密码发展基金资助项目
关键词
可视密码方案
多级别
一般存取结构
visual cryptography
multilevel
general access structure
