视频混沌加密及其FPGA实现

Video chaotic encryption and its FPGA implementation

混沌具有确定性系统的内在随机性、有界遍历性以及对初值和系统参数的敏感性,与信息加密应具备的基本特性相一致。基于混沌猫映射的基本原理,利用FPGA的并行处理算法和丰富的逻辑资源,首先对视频信号进行采集,然后利用混沌猫映射对采集的视频信号进行加密,并给出了相关的视频混沌加密的设计方法和FPGA硬件实现结果。

Chaotic systems possess inherent randomness, bounded ergodicity and highly sensitive to initial value and system parameters of deterministic systems, which accord with the basic features of information encrypting systems. In this paper, based on the principle of chaotic cat mapping and using FPGA parallel operation algorithm and its abundant logic resources, video data are firstly captured. Then, the captured video data are encrypted according to chaotic eat mapping. The related design process for video chaotic encryption and FPGA hardware implementation results are also demonstrated.