| 基于图像加密的置乱性能分析研究 |
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| 引用本文： | 王迤冉,朱维军,詹新生.基于图像加密的置乱性能分析研究[J].计算机工程与设计,2006,27(24):4729-4731,4738. |
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| 作者姓名： | 王迤冉 朱维军 詹新生 |
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| 作者单位： | 1. 周口师范学院,计算机科学系,河南,周口,466000
2. 郑州大学,信息工程学院,河南,郑州,450052 |
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| 摘 要： | 为了安全的使用图像加密方案，促进图像加密技术的进一步发展，对这些加密算法的安全性进行比较与分析是非常必要的。提出了对加密图像置乱度进行评价的若干参数，这些参数包括：不动点比、信息熵、灰度平均变化值、图像r-m自相关度和图像相似度。最后利用这些参数对图像加密算法进行了模拟实验分析和安全性评价。
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| 关 键 词： | 图像加密 置乱度 信息熵 图像相似度 安全性分析 |
| 文章编号： | 1000-7024（2006）24-4729-03 |
| 收稿时间： | 2005-11-19 |
| 修稿时间： | 2005-11-19 |
Study on scrambling capability based on image encryption |
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| WANG Yi-ran,ZHU Wei-jun,ZHAN Xin-sheng.Study on scrambling capability based on image encryption[J].Computer Engineering and Design,2006,27(24):4729-4731,4738. |
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| Authors: | WANG Yi-ran ZHU Wei-jun ZHAN Xin-sheng |
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| Affiliation: | 1. Department of Computer Science, Zhoukou Normal University, Zhoukou 466000, China; 2. College of Information Engineering, Zhengzhou University, Zhengzhou 450052, China |
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| Abstract: | To use schemes of image encryption safely and to improve the technology of image encryption, it is very necessary to compare and analyze the algorithm of image encryption. In this thesis, some parameters such as the percentage of unchanged point, the information entropy, and the average of pixel grey-scale values change, the r-m self-correlation of image and comparability of image are given to evaluate the image scrambling. At last using the parameters, the algorithm of image encryption is tested and the safety of the algorithm is evaluated. |
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| Keywords: | image encryption scrambling criterion information entropy comparability of image analysis of security |
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