基于双混沌的视频光学加密技术研究

本文提出了一种利用光学变换手段进行视频加密的方法,将视频加密速率提升到了光速等级,突破了目前视频加密算法给传输过程带来的瓶颈制约。本文利用两个超混沌系统对双随机相位编码系统进行了改进,在提高加密效率的同时,增加密钥空间,增强系统不可预测性,全面提升系统的抗攻击能力和安全性能；使用单通道彩色视频图像加密技术,降低了系统复杂度,提升了系统可实现性。最后利用Matlab软件对本文的加密技术进行了仿真,结果表明,本文提出的加密技术能够获得预期的视频加密效果,具有较强的抗攻击能力。

Video optical encryption technology research based on double chaos

This paper proposes a video encryption method using optical transform means, which made the video encryption speed up to the speed of light level. Breakthrough of transmission bottleneck restriction which come form the current video encryption algorithm. This paper using double ultra-chaotic system modified the double random phase encoding system, and deduced the ultra-chaotic sequence generation process. So that we can achieve the purpose to improve encryption efficiency while greatly enhance the video transmission security. At the same time, in order to reduce system complexity and increase the feasibility of system, using a color image channel separation technology to achieve a single-channel color video image encryption. Finally, the proposed encryption techniques are simulated. The result show that the proposed encryption technology can achieve the desired effect of video encryption, and has strong anti-attack capability.