基于混沌序列的图像加密算法  

Image Encryption Algorithm Based on Chaotic Sequences

作　　者：管春阳[1] 高飞[1] 

机构地区：[1]北京理工大学电子工程系,北京100081

出　　处：《兵工自动化》2004年第3期63-63,共1页Ordnance Industry Automation

摘　　要：基于混沌序列的图象加密算法通过m序列随机改变混沌映射的参数,在混沌函数输出中加入非线性m序列的扰动,并对图像进行加密。通过混沌时间信号、参数随机变化及加入扰动的混沌映射和加密计算,利用景物轮廓和景物与背景灰度的区分进行图像识别和处理。对图像加密进行计算机模拟,结果表明该法能够满足加密要求。An image encryption algorithm based on chaotic sequences is that the chaotic mapping parameter is changed randomly by m-sequence, and nonlinear m-sequence perturbation is introduced in output of chaotic function and encrypt image. After chaotic time signal and parameter was changed randomly, and the chaotic mapping of perturbation and encryption algorithm was added, the image was processed and identified by distinguishing scenery outline and scenery, and background gradation. Image encryption was simulated with computer, and the result shows that image encryption algorithm can satisfy encryption request.

关 键 词：混沌序列 图像加密 算法 混沌时间信号 

分 类 号：TN918.4[电子电信—通信与信息系统]