| 一种可完全恢复的门限多秘密视觉密码方案 |
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| 引用本文： | 付正欣,沈刚,李斌,郁滨. 一种可完全恢复的门限多秘密视觉密码方案[J]. 软件学报, 2015, 26(7): 1757-1771 |
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| 作者姓名： | 付正欣 沈刚 李斌 郁滨 |
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| 作者单位： | 信息工程大学, 河南 郑州 450001,信息工程大学, 河南 郑州 450001,信息保障技术重点实验室, 北京 100072,信息工程大学, 河南 郑州 450001 |
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| 基金项目： | 国家自然科学基金(61070086); 信息保障技术重点实验室开放基金(KJ-13-107) |
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| 摘 要： | 针对门限结构下恢复多幅秘密图像存在信息损失的问题,给出了一个完全恢复的门限多秘密视觉密码定义,能够适应门限值与秘密数量之间的各种对应关系.在此基础上,通过构造具有上下门限值的单门限多秘密视觉密码方案,并设计旋转规则融合算法和区域合并算法,提出了一种多门限方案.最后,对方案的有效性进行了理论证明和实验验证.
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| 关 键 词： | 视觉密码 多秘密 单门限 多门限 信息损失 完全恢复 |
| 收稿时间： | 2013-05-09 |
| 修稿时间： | 2014-03-27 |
Threshold Multi-Secret Visual Cryptography Scheme with Perfect Recovery |
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| FU Zheng-Xin,SHEN Gang,LI Bin and YU Bin. Threshold Multi-Secret Visual Cryptography Scheme with Perfect Recovery[J]. Journal of Software, 2015, 26(7): 1757-1771 |
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| Authors: | FU Zheng-Xin SHEN Gang LI Bin YU Bin |
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| Affiliation: | Information Engineering University, Zhengzhou 450001, China,Information Engineering University, Zhengzhou 450001, China,Science and Technology on Information Assurance Laboratory, Beijing 100072, China and Information Engineering University, Zhengzhou 450001, China |
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| Abstract: | To address the issue of information loss in recovering multiple secret images for threshold structure, this paper develops a definition of threshold multi-secret visual cryptography with perfect recovery, which can adapt to various corresponding relationship between the threshold value and the secret number. Based on the given definition, a single-threshold multi-secret visual cryptography scheme with upper and lower thresholds is constructed, and a multiple-threshold scheme is then proposed by designing the rotation rule fusion algorithm and the region merging algorithm. Furthermore, the effectiveness is proved theoretically and verified by experiments. |
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| Keywords: | visual cryptography multi-secret single-threshold multiple-threshold information loss perfect recovery |
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