Dissertation > Excellent graduate degree dissertation topics show

Research on the Chaos Encryption System of Video

Author: YouHuiMing
Tutor: YangJie
School: Wuhan University of Technology
Course: Signal and Information Processing
Keywords: Cryptography Video encryption Chaos Stream cipher
CLC: TP309.7
Type: Master's thesis
Year: 2006
Downloads: 247
Quote: 7
Read: Download Dissertation

Abstract


With the rapid development of network technology and multimedia technology, multimedia information is becoming an important means for people to obtain information. Worldwide information interaction has become possible, and more convenient to the digitization of the various sources of information (text, images, sound, etc.) so that the information copied information safety issue has become a research hotspot. Since the advent of chaos theory, the unique characteristics of chaotic phenomena by the close attention of the scholars of the password. In order to solve the problem of information security, the chaotic encryption applications in computer networking and security communications opened up a new avenue of research. In this paper, chaos theory and modern cryptography technology in video encryption, a more in-depth study. The paper briefly introduces the research background and the present state of research, analysis of video encryption technology, combined with the basic knowledge of cryptography detailed discussion of video encryption algorithm technology. Video streams of different encryption algorithms can be divided into two categories: the block cipher streaming video encryption algorithm and stream cipher that stream password encryption algorithm. The ciphertext block cipher an error appears, the entire block is not possible to correct decryption. Stream cipher encryption by a pseudo-random sequence and the plaintext bit-by-bit processing, a simple, fast, not error diffusion, more suitable for high-bit-rate video stream encryption, stream ciphers apply to the large amount of data and real-time requirements high encrypted requirements. Second, analysis of the basic concepts and features of chaos theory and chaos theory in cryptography are discussed in detail. Chaotic sequence is a non-linear sequence, its structure is complex, difficult to analyze and predict chaotic systems can provide good randomness and complexity of the pseudo random sequence, this article uses the video stream encryption scheme based on chaotic way. Elliptic curve encryption algorithm and this algorithm encryption effect analysis found that this algorithm is superior to the confidentiality of the effectiveness and speed of encryption elliptic curve encryption algorithm. Finally, using the chaotic sequence scrambling encryption algorithm, AVI video using a video encryption algorithm based on the chaotic system chaotic sequence. The chaotic sequence generated by the chaotic system AvI video frame pixel scrambling encryption, the experiment proved that the effect of this encryption algorithm is a good, simple method has some practical value.

Related Dissertations

  1. Research on Iris Based Cryptography,TP309.7
  2. The Research of Chaos M-ary Modulation and Demodulation Method Based on Chaotic Oscillator,TN915.05
  3. Differences of mathematics, dissipative structures and chaos in the system \,O415.5
  4. Study on Synchronization of Time-delayed Chaotic System and Its Experimental Realized,O415.5
  5. The Comprehensive Optimization of Hydrodynamic Performance and Structural Characteristics for a High-speed Ship,U661.3
  6. Research on Limit-Factors in IC Design-Tool Application,TN402
  7. Study of Chaos and Its Control in the DC-DC Converters,TM46
  8. Research of Watermarking Algorithm for Color Code Image,TP309.7
  9. The Design of Dynamic Reactive Power Compensating Device and the Chaotic Analysis of Its Integration,TM761
  10. A Research on Optical Chaotic Secure Communication System Based on Optisystem,O415.5
  11. Two Algorithms for Image Processing Based on Chaos and Fractal,TP391.41
  12. An Improved Method for Short-term Load Forecasting Based on FFT and Chaos,TM715
  13. Dual flexible structural beam collision bifurcation motion and control,TB122
  14. Based on artificial fish swarm algorithm Differential Games Lanchester Equation Research,O225
  15. Synchronization of chaotic systems,O415.5
  16. Register-based chaotic secure communication and Noise Analysis,TN918
  17. Chaotic secure communication system modulation and optical fiber channel performance study,TN918.8
  18. Scalable video coding H.264/SVC layered encryption scheme,TN919.81
  19. CSK coherent technology based digital communication systems analysis,TN918.6
  20. Chaos anti-synchronization and its application in secure communication,TN918
  21. Research on Chaos and Its Application of the Complex-order Chua’s System,TN918

CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > General issues > Security and confidentiality > Encryption and decryption
© 2012 www.DissertationTopic.Net  Mobile