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一种基于复合离散混沌系统的对称图像加密算法 被引量:6

A Symmetric Image Encryption Scheme Based on Composite Discrete Chaotic System
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摘要 提出了一种基于复合离散混沌系统的对称图像加密算法。在该算法中,通过复合离散混沌系统隐藏了混沌序列产生时所经历的迭代次数,来避免常用的基于符号动力学的密码分析。理论分析和仿真实验表明,本文提出的算法具有较高的安全性能,特别是在统计攻击、差分攻击和选择明文攻击能力方面具有很好的抗攻击性能。 In this paper, a symmetric image encryption scheme based on composite discrete chaotic system is presented. In the proposed scheme, when the chaos sequence is generated, the iteration times are hidden to avoid cryptanalysis based on symbolic dynamic. Theoretical analysis and simulated experiment show that, the scheme has excellent performances against attacks, in particular statistical attack, differential attack and chosen plain image attack.
出处 《计算机科学》 CSCD 北大核心 2006年第12期86-90,138,共6页 Computer Science
基金 重庆市教委资助项目(No.KJ061501 No.KJ051501) 重庆市科委资助项目(No.CSTC 2005BB2286)。
关键词 混沌图像加密算法 复合离散混沌系统 密码分析 选择明文攻击 符号动力学 Chaos image eneryption scheme, Composite discrete chaotic system, Cryptanalysis, Chosen plain-lmage attack, Symbolic dynamic
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参考文献16

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