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结合Logistic映射和直方图特征引导的非对称加密算法设计 认领 引用 被引量：1
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作者 李豪杰 李梦 许晓曾 《重庆工商大学学报（自然科学版）》 2026年第1期39-46,共8页
目的针对传统图像加密算法运算量大、速度慢且需要设计大量密钥的问题,提出结合Logistic映射和直方图特征引导的非对称加密方案。方法在加密过程中提取直方图的峰值点和谷值点作为加密私钥,并利用Logistic映射生成两个混沌序列,分别指... 目的针对传统图像加密算法运算量大、速度慢且需要设计大量密钥的问题,提出结合Logistic映射和直方图特征引导的非对称加密方案。方法在加密过程中提取直方图的峰值点和谷值点作为加密私钥,并利用Logistic映射生成两个混沌序列,分别指导图像像素的灰度加密和置乱加密。灰度加密的同时进行了像素的向后扩散;置乱加密时,先根据尺寸密钥对图像进行分块处理,然后将每个块的内部像素进行水平或垂直平移。结果对多张灰度图像和彩色图像进行加密和解密测试,并从各种经典攻击角度验证方案的安全性,发现该方案对图像内容加密效果良好,并完整保留了图像的质量和视觉效果。此外,相比于其他对比算法,用该方案加密后的图像熵值更接近8。结论该方案通过引入非线性混沌运算,并利用图像自身信息作为密钥,在实现简易运算的同时,不仅增加了加密算法的复杂性,也使得私钥在加密过程就完成了自动设计,避免了人为设计私钥的过程,显著提高了加密效率。 展开更多
关键词 图像加密 混沌序列 Logistic映射 直方图特征
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Analysis and confirmation of fixed points in logistic mapping digital-flow chaos 认领 引用 被引量：3
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作者 GuobaoXu DelingZheng GengZhao 《Journal of University of Science and Technology Beijing》 2003年第3期62-65,共4页
The fixed points in logistic mapping digital-flow chaos strange attractor arestudied in detail. When k=n in logistic equation, there exist no more than 2n fixed points, whichare deduced and proved theoretically. Three... The fixed points in logistic mapping digital-flow chaos strange attractor arestudied in detail. When k=n in logistic equation, there exist no more than 2n fixed points, whichare deduced and proved theoretically. Three corollaries about the fixed points of logistic mappingare proposed and proved respectively. These theorem and corollaries provide a theoretical basis forchoosing parameter of chaotic sequences in chaotic secure communication and chaotic digitalwatermarking. And they are testified by simulation. 展开更多
关键词 chaos logistic mapping fixed point strange attractor
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A Secure Audio Encryption Method Using Tent-Controlled Permutation and Logistic Map-Based Key Generation 认领 引用
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作者 Ibtisam A.Taqi Sarab M.Hameed 《Computers, Materials & Continua》 SCIE EI 2025年第10期1653-1674,共22页
The exponential growth of audio data shared over the internet and communication channels has raised significant concerns about the security and privacy of transmitted information.Due to high processing requirements,tr... The exponential growth of audio data shared over the internet and communication channels has raised significant concerns about the security and privacy of transmitted information.Due to high processing requirements,traditional encryption algorithms demand considerable computational effort for real-time audio encryption.To address these challenges,this paper presents a permutation for secure audio encryption using a combination of Tent and 1D logistic maps.The audio data is first shuffled using Tent map for the random permutation.The high random secret key with a length equal to the size of the audio data is then generated using a 1D logistic map.Finally,the Exclusive OR(XOR)operation is applied between the generated key and the shuffled audio to yield the cipher audio.The experimental results prove that the proposed method surpassed the other techniques by encrypting two types of audio files,as mono and stereo audio files with large sizes up to 122 MB,different sample rates 22,050,44,100,48,000,and 96,000 for WAV and 44,100 sample rates for MP3 of size 11 MB.The results show high Mean Square Error(MSE),low Signal-to-Noise Ratio(SNR),spectral distortion,100%Number of Sample Change Rate(NSCR),high Percent Residual Deviation(PRD),low Correlation Coefficient(CC),large key space 2616,high sensitivity to a slight change in the secret key and that it can counter several attacks,namely brute force attack,statistical attack,differential attack,and noise attack. 展开更多
关键词 Wave protection 1D logistic map Tent map random permutation key generation
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忆阻器耦合简化Logistic映射的忆阻混沌系统 认领 引用
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作者 张新志 李灵近 +3 位作者 杨茂泽 范鉴维 韩煊宇 张志远 《机电工程技术》 2026年第2期116-119,195,共4页
在简化后的Logistic映射中加入一个离散忆阻器,构建了一种忆阻混沌系统,获得了更为复杂的混沌映射,并使用MATLAB对其进行仿真,分析了忆阻器的I/V特性曲线,同时对忆阻混沌系统的稳定性、Lyapunov指数、Logistic映射分岔图、混沌吸引子共... 在简化后的Logistic映射中加入一个离散忆阻器,构建了一种忆阻混沌系统,获得了更为复杂的混沌映射,并使用MATLAB对其进行仿真,分析了忆阻器的I/V特性曲线,同时对忆阻混沌系统的稳定性、Lyapunov指数、Logistic映射分岔图、混沌吸引子共存现象、混沌吸引子相图进行了仿真分析,仿真结果表明Lyapunov指数为正数时系统出现分岔行为,并且分岔图经历两次倍周期分岔后进入混沌,混沌之后又进入周期状态,并再次倍周期分岔进入混沌,系统出现更加复杂的动力学行为。同时系统混沌吸引子存在周期与混沌的不定状态,证明有吸引子共存。另外对比了自变量不同时系统的分岔行为,还对忆阻混沌系统的混沌吸引子相图进行Simulation三维仿真,仿真结果在X-Y平面上与忆阻混沌系统的混沌吸引子相图在数值、形状等方面基本一致,验证了所设计忆阻混沌系统的正确性。所设计的忆阻混沌系统简化了整体模型,易于实现,对忆阻混沌系统投入到应用中具有重要意义。 展开更多
关键词 Logistic映射 忆阻器 混沌系统 混沌吸引子
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A New Digital Image Encryption Algorithm Based on Improved Logistic Mapping and Josephus Circle 认领 引用 被引量：1
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作者 Zhiben Zhuang Jing Wang +2 位作者 Jingyi Liu Dingding Yang Shiqiang Chen 《Journal of Computer and Communications》 2018年第6期31-44,共14页
Digital image encryption based on Joseph circle and Chaotic system has become a hot spot in the research of image encryption. An encryption algorithm based on improved Josephus loop and logistic mapping is proposed to... Digital image encryption based on Joseph circle and Chaotic system has become a hot spot in the research of image encryption. An encryption algorithm based on improved Josephus loop and logistic mapping is proposed to scrambling blocks in this paper. At first, the original image is scrambled by using logistic mapping to obtain the encrypted image, and then the encrypted image is divided into many blocks. Finally, the position of the blocked image is scrambled by using the improved Josephus ring to get the encrypted image. According to the experiments, the information entropy of the encrypted image reaches 7.99 and the adjacent correlations in three directions are within ±0.1. The experimental results show that the proposed algorithm has advantages of large key space, high key sensitivity and can effectively resist the attacks of statistical analysis and gray value analysis. It has good encryption effect on digital image encryption. 展开更多
关键词 Digital Image Encryption Image Block Scrambling Josephus Loop Logistic Mapping Pixel Scrambling
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Logistic混沌映射与差分进化改进人工蜂群优化水下定位 认领 引用 被引量：11
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作者 陈嘉兴 刘扬 +1 位作者 刘晓茜 刘志华 《工程科学与技术》 EI CAS CSCD 北大核心 2025年第1期57-67,共11页
水下节点定位时通常采用距离估算法,在节点之间利用点到点的距离来估计或基于角度估计来完成节点定位。然而,这种算法存在较大的定位误差。为了提升定位的精确度,引入了人工蜂群(ABC)优化算法,该算法通过将节点定位结果优化问题转化为... 水下节点定位时通常采用距离估算法,在节点之间利用点到点的距离来估计或基于角度估计来完成节点定位。然而,这种算法存在较大的定位误差。为了提升定位的精确度,引入了人工蜂群(ABC)优化算法,该算法通过将节点定位结果优化问题转化为对节点目标函数的优化问题,有效地提高了水下节点的定位精度。尽管如此,ABC算法在迭代过程中仍存在收敛速度慢、易陷入局部最优的问题。针对这些问题,提出了一种通过Logistic混沌映射与差分进化改进的人工蜂群优化水下定位算法(improved artificial bee colony optimization underwater localization algorithm by Logistic chaos mapping and differential evolution,LDIABC)。首先,在算法种群初始化阶段,引入了Logistic混沌映射,利用该映射函数产生的混沌序列代替随机数生成器,从而使种群在初始化分布时蜜源位置更均匀,并从理论上证明了Logistic混沌序列的互异性,从而避免由于种群分布过于密集导致算法在迭代过程中陷入局部最优;其次,提出了适应度方差这一标准来验证在算法迭代过程中未陷入局部最优,进一步证明其有效性;然后,在引领蜂搜索阶段,基于差分进化的变异策略,提出了权重因子改进引领蜂邻域搜索方式,提高了引领蜂的全局搜索效率,加快了算法的收敛速度。仿真实验表明,LDIABC算法能够有效避免传统ABC算法收敛速度慢和易陷入局部最优的问题。相较于Tent-IABC算法、ELOABC算法、CODEGWO算法以及SAPSO算法,LDIABC算法在收敛速度和节点定位成功率上均有显著提升,并且优化定位精度分别提升了6.36%、13.33%、14.16%和16.88%。这些结果证明LDIABC算法能够有效提升水下节点定位精度,具有良好的优化效果。 展开更多
关键词 人工蜂群优化 水下定位 Logistic混沌映射 适应度方差 权重因子
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Bifurcation analysis of the logistic map via two periodic impulsive forces 认领 引用 被引量：3
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作者 姜海波 李涛 +1 位作者 曾小亮 张丽萍 《Chinese Physics B》 SCIE EI CAS CSCD 2014年第1期112-118,共7页
The complex dynamics of the logistic map via two periodic impulsive forces is investigated in this paper. The influ- ences of the system parameter and the impulsive forces on the dynamics of the system are studied res... The complex dynamics of the logistic map via two periodic impulsive forces is investigated in this paper. The influ- ences of the system parameter and the impulsive forces on the dynamics of the system are studied respectively. With the parameter varying, the system produces the phenomenon such as periodic solutions, chaotic solutions, and chaotic crisis. Furthermore, the system can evolve to chaos by a cascading of period-doubling bifurcations. The Poincar6 map of the logistic map via two periodic impulsive forces is constructed and its bifurcation is analyzed. Finally, the Floquet theory is extended to explore the bifurcation mechanism for the periodic solutions of this non-smooth map. 展开更多
关键词 logistic map impulse periodic solutions bifurcation mechanism
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Secure Image Communication Using Galois Field,Hyper 3D Logistic Map,and B92 Quantum Protocol 认领 引用 被引量：3
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作者 De Rosal Ignatius Moses Setiadi Nova Rijati +2 位作者 Ahmad Rofiqul Muslikh Bonifacius Vicky Indriyono Aceng Sambas 《Computers, Materials & Continua》 SCIE EI 2024年第12期4435-4463,共29页
In this paper,we propose a novel secure image communication system that integrates quantum key distribution and hyperchaotic encryption techniques to ensure enhanced security for both key distribution and plaintext en... In this paper,we propose a novel secure image communication system that integrates quantum key distribution and hyperchaotic encryption techniques to ensure enhanced security for both key distribution and plaintext encryption.Specifically,we leverage the B92 Quantum Key Distribution(QKD)protocol to secure the distribution of encryption keys,which are further processed through Galois Field(GF(28))operations for increased security.The encrypted plaintext is secured using a newly developed Hyper 3D Logistic Map(H3LM),a chaotic system that generates complex and unpredictable sequences,thereby ensuring strong confusion and diffusion in the encryption process.This hybrid approach offers a robust defense against quantum and classical cryptographic attacks,combining the advantages of quantum-level key distribution with the unpredictability of hyperchaos-based encryption.The proposed method demonstrates high sensitivity to key changes and resilience to noise,compression,and cropping attacks,ensuring both secure key transmission and robust image encryption. 展开更多
关键词 Galois field hyper 3D logistic map hyperchaotic map image security improved logistic map secure communication quantum security
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Logistic Mapping-Based Complex Network Modeling 认领 引用
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作者 Xiaoling Yu Zhen Jia Xiangguo Jian 《Applied Mathematics》 2013年第11期1158-1562,共405页
In this paper, a new topological approach for studying an integer sequence constructed from Logistic mapping is proposed. By evenly segmenting [0,1]?into N non-overlapping subintervals which is marked as , representin... In this paper, a new topological approach for studying an integer sequence constructed from Logistic mapping is proposed. By evenly segmenting [0,1]?into N non-overlapping subintervals which is marked as , representing the nodes identities, a network is constructed for analysis. Wherein the undirected edges symbolize their relation of adjacency in an integer sequence obtained from the Logistic mapping and the top integral function. By observation, we find that nodes’ degree changes with different values of??instead of the initial value—X0, and the degree distribution presents the characteristics of scale free network, presenting power law distribution. The results presented in this paper provide some insight into degree distribution of the network constructed from integer sequence that may help better understanding of the nature of Logistic mapping. 展开更多
关键词 Complex Network Logistic Mapping Power Law Distribution
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Susceptibility Mapping of Ground Collapse Caused by Anthropogenic Activities 认领 引用
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作者 Zhongmin Mao Yuyong Jiao +2 位作者 Fei Tan Xin Qi Cong Zeng 《Journal of Earth Science》 SCIE CAS CSCD 2025年第3期1168-1180,共13页
With the rapid urbanization process,ground collapses caused by anthropogenic activities occur frequently.Accurate susceptibility mapping is of great significance for disaster prevention and control.In this study,1198 ... With the rapid urbanization process,ground collapses caused by anthropogenic activities occur frequently.Accurate susceptibility mapping is of great significance for disaster prevention and control.In this study,1198 ground collapse cases in Shenzhen from 2017 to 2020 were collected.Eight effective factors(elevation,relief,clay proportion,average annual precipitation,distance from water,land use type,building density,and road density)were selected to construct the evaluation index system.Ground collapse susceptibility was analyzed and mapped using the normalized frequency ratio(NFR),logistic regression(LR),and NFR-LR coupling models.Finally,the result rationality and performance of the three models were compared through frequency ratio(FR)and ROC curve.The results indicate that all three models can effectively evaluate the ground collapse susceptibility(AUC>0.7),and the NFR-LR model result is more rational and has the best performance(AUC=0.791).The very high and high susceptibility zones cover a total area of 545.68 km2 and involve Nanshan,Luohu,and Futian District,as well as some areas of Baoan,Guangming,and Longgang District.The ground collapses in Shenzhen mainly occurred in the built-up areas,and the greater intensity of anthropogenic activities,the more susceptible to the disaster. 展开更多
关键词 anthropogenic activities ground collapse susceptibility mapping normalized frequency ratio logistic regression GIS disaster prevention
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Destruction of Spiral Wave Using External Electric Field Modulated by Logistic Map 认领 引用 被引量：5
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作者 MA Jun CHEN Yong JIN Wu-Yin 《Communications in Theoretical Physics》 SCIE CAS 2007年第4期675-678,共4页
Evolution of spiral wave generated from the excitable media within the Barkley model is investigated. The external gradient electric field modulated by the logistic map is imposed on the media （along x- and y-axis）.... Evolution of spiral wave generated from the excitable media within the Barkley model is investigated. The external gradient electric field modulated by the logistic map is imposed on the media （along x- and y-axis）. Drift and break up of spiral wave are observed when the amplitude of the electric field is modulated by the chaotic signal from the logistic map, and the whole system could become homogeneous finally and the relevant results are compared when the gradient electric field is modulated by the Lorenz or Rossler chaotic signal. 展开更多
关键词 spiral wave Barkley model logistic map
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Landslide-Dammed Mapping and Logistic Regression Modeling Using GIS and R Statistical Software in the Northeast Afghanistan 认领 引用
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作者 Mohammad Kazem Naseri Dongshik Kang 《Journal of Electrical Engineering》 2016年第4期165-172,共8页
A complex terrain and topography resulted in an enormous landslide-dammed area northeast of Afghanistan. Moreover, debris, rock avalanches, and landslides occurrences are the primary source of lakes created within the... A complex terrain and topography resulted in an enormous landslide-dammed area northeast of Afghanistan. Moreover, debris, rock avalanches, and landslides occurrences are the primary source of lakes created within the area. Recently, instances have increased because of the high displacement and mass movement by glacial and seismic activities. In this study, using GIS and R statistical software, we performed a logistic regression modeling in order to map and predict the probability of landslides-dammed occurrences. Totally, 361 lakes were mapped using Google Earth historical imagery. This total was divided into 253 （70%） lakes for modeling and 801 （30%） lakes for the model validation. They were randomly selected by creating a fishnet for the study area using Arc toolbox in GIS. Four independent variables that are mostly contributed to landslide-dammed occurrences consisting of slope angles, relief classes, distances to major water sources and earthquake epicenters, were extracted from DEM （digital elevation model） data using 85-meter resolution. The result is a grid map that classified the area into Low （16,834.98 km2）, Medium （2,217.302 kin：） and High （2,013.55 km2） vulnerability to landslide-dammed occurrences. Overall, the model result has been validated by using a ROC （receiver operator characteristic） curve available in SPSS software. The model validation showed a 95.1 percent prediction accuracy that is considered satisfactory. 展开更多
关键词 Landslide-dammed area mapping Northeast Afghanistan logistic regression modeling GIS and R.
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改进型Logistic-Map混沌序列分析 认领 引用 被引量：6
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作者 魏金成 魏巍 《电子设计工程》 2011年第4期20-23,共4页
为了进一步提高Logistic-Map混沌序列的互相关性与自相关性,提出了一种改进型的Logistic-Map混沌序列的构造方法。通过Matlab仿真出扩频通信系统,并对改进型Logistic-Map混沌序列的相关性特性进行了分析,并与传统的Logistic-Map混沌序... 为了进一步提高Logistic-Map混沌序列的互相关性与自相关性,提出了一种改进型的Logistic-Map混沌序列的构造方法。通过Matlab仿真出扩频通信系统,并对改进型Logistic-Map混沌序列的相关性特性进行了分析,并与传统的Logistic-Map混沌序列做了比较。仿真结果表明,改进型Logistic-Map混沌序列与白噪声的统计特性一致,并且该混沌序列具有更为理想的互相关和自相关特性,更加适合作为扩频通信地址码。 展开更多
关键词 混沌序列 Logistic—Map 改进型的Logistic—Map Matlab仿真
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基于改进分段Logistic映射的PRNG算法 认领 引用 被引量：1
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作者 华漫 李锦长 李燕玲 《计算机与现代化》 2025年第3期113-118,126,共6页
分段Logistic映射的提出改善了经典Logistic映射的一些缺点,由于其复杂性高、安全性好等特点为混沌流密码设计领域提供了一种新的研究课题。为了改善分段Logistic混沌映射存在混沌序列均匀分布特性较差、密钥空间过小等安全隐患,提出一... 分段Logistic映射的提出改善了经典Logistic映射的一些缺点,由于其复杂性高、安全性好等特点为混沌流密码设计领域提供了一种新的研究课题。为了改善分段Logistic混沌映射存在混沌序列均匀分布特性较差、密钥空间过小等安全隐患,提出一种基于初始值和控制参数反馈调整的分段Logistic映射改进方法。该方法通过引入动态系统参数映射函数使输出的状态值分布的概率密度更均匀。基于优化后的分段Logistic混沌映射重新设计PRNG算法和分析比特级数字图像加密实验。实验结果表明本文算法产生的序列混沌特性更显著,分布更均匀,且具有更好的随机性,在流密码算法设计中具有广泛的应用前景。 展开更多
关键词 混沌系统 流密码 分段Logistic映射 图像加密 PRNG
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一种基于随机数种子置乱的二维Logistic图像加密算法 认领 引用 被引量：1
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作者 张庆 方永锋 晏永 《现代电子技术》 北大核心 2025年第11期89-93,共5页
图像以信息传递、情感表达、认知等方面的优势,广泛应用在金融、医疗、教育等行业,成为互联网用户之间传递信息的一种重要媒介。如何保护图像内容信息,特别是涉及隐私、机密等敏感信息时,成为当前的研究热点。图像加密通过置乱像素位置... 图像以信息传递、情感表达、认知等方面的优势,广泛应用在金融、医疗、教育等行业,成为互联网用户之间传递信息的一种重要媒介。如何保护图像内容信息,特别是涉及隐私、机密等敏感信息时,成为当前的研究热点。图像加密通过置乱像素位置和改变像素值来保护图像内容。针对二维Logistic映射算法在图像加密中存在的密钥设置复杂等问题,设计一种基于二维Logistic映射和随机数种子的图像加密算法。该算法通过Arnold矩阵变换置乱随机数,并结合二维Logistic映射生成混沌序列实现图像加密。通过对实验结果的直方图和信息熵分析表明,加密图像像素分布均匀,难以提取有用信息,相关性分析证明加密算法降低了相邻像素的相关性。综合实验结果,所提出的算法能有效保护图像信息,操作简单、密钥易设置且敏感,具有较高的安全性和实用性。 展开更多
关键词 图像加密 随机数种子 二维Logistic映射 Arnold矩阵变换 混沌序列 信息安全 密钥敏感性 灰度直方图分析
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Asymmetric image encryption algorithm based on a new three-dimensional improved logistic chaotic map 认领 引用 被引量：2
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作者 叶国栋 吴惠山 +1 位作者 黄小玲 Syh-Yuan Tan 《Chinese Physics B》 SCIE EI CAS CSCD 2023年第3期153-163,共11页
Based on some analyses of existing chaotic image encryption frameworks and a new designed three-dimensional improved logistic chaotic map(3D-ILM),an asymmetric image encryption algorithm using public-key Rivest–Shami... Based on some analyses of existing chaotic image encryption frameworks and a new designed three-dimensional improved logistic chaotic map(3D-ILM),an asymmetric image encryption algorithm using public-key Rivest–Shamir–Adleman(RSA)is presented in this paper.In the first stage,a new 3D-ILM is proposed to enhance the chaotic behavior considering analysis of time sequence,Lyapunov exponent,and Shannon entropy.In the second stage,combined with the public key RSA algorithm,a new key acquisition mathematical model(MKA)is constructed to obtain the initial keys for the 3D-ILM.Consequently,the key stream can be produced depending on the plain image for a higher security.Moreover,a novel process model(NPM)for the input of the 3D-ILM is built,which is built to improve the distribution uniformity of the chaotic sequence.In the third stage,to encrypt the plain image,a pre-process by exclusive OR(XOR)operation with a random matrix is applied.Then,the pre-processed image is performed by a permutation for rows,a downward modulo function for adjacent pixels,a permutation for columns,a forward direction XOR addition-modulo diffusion,and a backward direction XOR addition-modulo diffusion to achieve the final cipher image.Moreover,experiments show that the the proposed algorithm has a better performance.Especially,the number of pixels change rate(NPCR)is close to ideal case 99.6094%,with the unified average changing intensity(UACI)close to 33.4634%,and the information entropy(IE)close to 8. 展开更多
关键词 three-dimensional improved logistic chaotic map(3D-ILM) Rivest–Shamir–Adleman(RSA)algorithm image encryption confusion entropy
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Effects of Colored Noise on Periodic Orbits in a One-Dimensional Map 认领 引用 被引量：1
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作者 李丰果 艾保全 《Communications in Theoretical Physics》 SCIE CAS CSCD 2011年第6期1001-1006,共6页
Noise can induce inverse period-doubling transition and chaos. The effects of the colored noise on periodic orbits, of the different periodic sequences in the logistic map, are investigated. It is found that the dynam... Noise can induce inverse period-doubling transition and chaos. The effects of the colored noise on periodic orbits, of the different periodic sequences in the logistic map, are investigated. It is found that the dynamical behaviors of the orbits, induced by an exponentially correlated colored noise, are different in the mergence of transition, and the effects of the noise intensity on their dynamical behaviors are different from the effects of the correlation time of noise. Remarkably, the noise can induce new periodic orbits, namely, two new orbits emerge in the period-four sequence at the bifurcation parameter value μ = 3.5, four new orbits in the period-eight sequence at μ= 3.55, and three new orbits in the period-six sequence at μ = 3.846, respectively. Moreover, the dynamical behaviors of the new orbits clearly show the resonancelike response to the colored noise. 展开更多
关键词 a one-dimensional map colored noise periodic sequences stochastic resonance
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Image Encryption Using Multi-Scroll Attractor and Chaotic Logistic Map 认领 引用 被引量：1
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作者 R.Anitha B.Vijayalakshmi 《Computers, Materials & Continua》 SCIE EI 2022年第8期3447-3463,共17页
In the current scenario,data transmission over the network is a challenging task as there is a need for protecting sensitive data.Traditional encryption schemes are less sensitive and less complex thus prone to attack... In the current scenario,data transmission over the network is a challenging task as there is a need for protecting sensitive data.Traditional encryption schemes are less sensitive and less complex thus prone to attacks during transmission.It has been observed that an encryption scheme using chaotic theory is more promising due to its non-linear and unpredictable behavior.Hence,proposed a novel hybrid image encryption scheme with multi-scroll attractors and quantum chaos logistic maps(MSA-QCLM).The image data is classified as inter-bits and intra-bits which are permutated separately using multi scroll attractor&quantum logistic maps to generate random keys.To increase the encryption efficiency,a hybrid chaotic technique was performed.Experimentation is performed in a Qiskit simulation tool for various image sets.The simulation results and theoretical analysis show that the proposed method is more efficient than its classical counterpart,and its security is verified by the statistical analysis,keys sensitivity,and keyspace analysis.The Number of changing pixel rate(NPCR)&the Unified averaged changed intensity(UACI)values were observed to be 99.6%&33.4%respectively.Also,entropy oscillates from 7.9 to 7.901 for the different tested encrypted images.The proposed algorithm can resist brute force attacks well,owing to the values of information entropy near the theoretical value of 8.The proposed algorithm has also passed the NIST test(Frequency Monobit test,Run test and DFT test). 展开更多
关键词 Chiper key image encryption logistic map quantum chaos qiskit
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Two-dimensional-lag complex logistic map with complex parameters and its encryption application 认领 引用
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作者 张芳芳 武金波 +3 位作者 寇磊 马凤英 吴黎明 张雪 《Chinese Physics B》 SCIE EI CAS CSCD 2024年第5期324-335,共12页
With the rapid development of internet technology,security protection of information has become more and more prominent,especially information encryption.Considering the great advantages of chaotic encryption,we propo... With the rapid development of internet technology,security protection of information has become more and more prominent,especially information encryption.Considering the great advantages of chaotic encryption,we propose a 2D-lag complex logistic map with complex parameters(2D-LCLMCP)and corresponding encryption schemes.Firstly,we present the model of the 2D-LCLMCP and analyze its chaotic properties and system stability through fixed points,Lyapunov exponent,bifurcation diagram,phase diagram,etc.Secondly,a block cipher algorithm based on the 2D-LCLMCP is proposed,the plaintext data is preprocessed using a pseudorandom sequence generated by the 2D-LCLMCP.Based on the generalized Feistel cipher structure,a round function F is constructed using dynamic S-box and DNA encoding rules as the core of the block cipher algorithm.The generalized Feistel cipher structure consists of two F functions,four XOR operations,and one permutation operation per round.The symmetric dynamic round keys that change with the plaintext are generated by the 2D-LCLMCP.Finally,experimental simulation and performance analysis tests are conducted.The results show that the block cipher algorithm has low complexit,good diffusion and a large key space.When the block length is 64 bits,only six rounds of encryption are required to provide sufficient security and robustness against cryptographic attacks. 展开更多
关键词 logistic map block ciphers chaotic system encryption
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PERIODIC SOLUTIONS IN ONE-DIMENSIONAL COUPLED MAP LATTICES 认领 引用
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作者 郑永爱 刘曾荣 《Applied Mathematics and Mechanics(English Edition)》 SCIE EI 2003年第5期521-526,共6页
It is proven that the existence of nonlinear solutions with time period in one-dimensional coupled map lattice with nearest neighbor coupling. This is a class of systems whose behavior can be regarded as infinite arra... It is proven that the existence of nonlinear solutions with time period in one-dimensional coupled map lattice with nearest neighbor coupling. This is a class of systems whose behavior can be regarded as infinite array of coupled oscillators. A method for estimating the critical coupling strength below which these solutions with time period persist is given. For some particular nonlinear solutions with time period,exponential decay in space is proved. 展开更多
关键词 coupled map lattice nonlinear periodic solution anti-integrable limit logistic map
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