원문정보
초록
영어
Because the single chaotic mapping easily creates security weaknesses in the image encryption algorithm, the security needs to be improved. Aiming at this problem, a bit-level image encryption algorithm based on composite chaotic mapping (CCM-IEA) is proposed. First of all, the algorithm scrambles the plain image on bit level through the Cat mapping for the first time. And then the Henon mapping of two dimensional discrete is used to scramble for the second time. Finally, image diffusion is operated through the one dimensional Logistic mapping, and the data sensitivity is enhanced. The experimental results show that the performance of the CCM-IEA algorithm is better on the histogram, information entropy and correlation analysis. Compared with the single chaotic images encryption algorithm, the CCM-IEA algorithm has the ability to resist the information entropy analysis and correlation analysis. It can be seen that the CCM-IEA algorithm has high safety performance and good encryption effect.
목차
1. Introduction
2. The Composite Chaos Mapping
2.1. Cat Mapping
2.2. Henon Mapping
2.3. Logistic Mapping
3. Design of the CCM-IEA Algorithm
3.1. The Bit Level Image Scrambling
3.2. Image Scrambling Process
3.3. Image Scrambling Process
4. Experiment Results and Analysis
4.1. Histogram Analysis
4.2. Key Sensitivity Analysis
4.3. Performance Comparison of Image Encryption Algorithm with Single Chaotic Mapping
5. Conclusion
Acknowledgment
References