In today’s world,there is an ever increasing need for new techniques of maintaining and protecting privacy and integrity of information of mass communication and private information.Chaos theory and cryptography overlap some features which can lead to developing secure chaos-based cryptosystem for secure communication of texts and images.Some of the basic features of chaotic systems such as sensitivity to initial conditions,ergodicity,and pseudorandom behavior,fulfill the analogous requirements ... 

【文章來源】：南京理工大學江蘇省 211工程院校

【文章頁數(shù)】：92 頁

【學位級別】：碩士

【文章目錄】：
Abstract
1 Introduction
    1.1 Chaos theory
    1.2 Historical Background
    1.3 Applications of chaos
        1.3.1 Information Security
        1.3.2 Secure Communication
        1.3.3 Miscellaneous applications
    1.4 Problem statement
    1.5 Contribution of the thesis
    1.6 Structure of the thesis
2 Literature Review
    2.1 Introduction
    2.2 Background
    2.3 Categories of chaotic systems
        2.3.1 One-dimensional（1D） chaotic systems
        2.3.2 Multi-dimensional chaotic systems
    2.4 Detail analysis about basic dynamic behavior of chaotic systems
        2.4.1 Lyapunov exponents
        2.4.2 Dissipativity
        2.4.3 Symmetry
        2.4.4 Equilibria analysis
        2.4.5 Bifurcation analysis
    2.5 Summary
3 S-Box design Based on the Hyperchaotic System
    3.1 S-Box Overview
    3.2 Related work
    3.3 The Method of S-Boxes Design
        3.3.1 4D 4Wing hyperchaotic system
        3.3.2 Generate candidate S-boxes based on 4-D 4-Wing Hyperchaotic Memristive system
    3.4 Performance analysis of the generated S-Boxes
        3.4.1 Typical evaluation criteria for S-box
        3.4.2 Performance analysis of the preferred S-box
    3.5 Summary
4 Image Encryption Based on the Hyperchaotic System
    4.1 Background
    4.2 Related work
    4.3 Chaos based Image encryption
        4.3.1 Description of Designing 8x8 S-boxes
        4.3.2 Architecture of chaos based image encryption scheme
    4.4 Performance and security analysis
        4.4.1 Key space analysis
        4.4.2 Key sensitivity
        4.4.3 Differential attack analysis
        4.4.4 Histogram analysis
        4.4.5 Correlation of adjacent pixels
        4.4.6 Information Entropy analysis
    4.5 Summary
5 Conclusions and Future Directions
    5.1 Conclusions
    5.2 Future work
Acknowledgements
References
Research Program and Published and Accepted Papers


【參考文獻】：
期刊論文
[1]Forming and implementing a hyperchaotic system with rich dynamics[J]. 劉文波,鄧榤生,陳關(guān)榮.  Chinese Physics B. 2011(09)
[2]Novel four-wing and eight-wing attractors using coupled chaotic Lorenz systems[J]. Giuseppe Grassi.  Chinese Physics B. 2008(09)



本文編號：2927194