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基于Jerk系统的彩色图像加密算法 被引量:4

Color image encryption algorithm based on Jerk system
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摘要 提出了一种用三维Jerk系统对彩色图像加密的算法。首先对Jerk系统输出的混沌序列进行预处理,使其成为更为理想的伪随机序列;其次用得到的混沌序列对图像进行行、列置乱变换;最后再用混沌序列对置乱后的图像进行扩散,完成加密。此外,在解密中利用原图像相邻像素的相关性增强了算法的抗攻击能力。仿真结果表明,Jerk系统产生的混沌序列有理想的伪随机性,该加密算法可以达到很好的加密效果,并具有较强的抗攻击性能。 This paper presented an image encryption scheme based on a three dimensional Jerk system.Firstly,the method preprocessed chaotic sequences from the Jerk system for better randomness.Then,used the sequences to shuffle the positions of image pixels.Finally,diffused the shuffled image by virtue of the chaotic sequences.And utilized the correlation of adjacent pixels to enhance anti-attack capability of the algorithm in decryption process.Simulation results indicate that the method has good effect of encryption and strong performance of security.
出处 《计算机应用研究》 CSCD 北大核心 2012年第1期312-315,共4页 Application Research of Computers
基金 广东省科技计划省国际合作项目(2010B050900016) 暨南大学科研培育与创新基金研究国际合作研究项目(21609606)
关键词 混沌 Jerk系统 混沌加密 彩色图像加密 安全性分析 chaos Jerk system chaotic encryption color image encryption security analysis
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参考文献11

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