A secure image encryption method based on dynamic harmony search (DHS) combined with chaotic map

2016 ◽  
Vol 81 ◽  
pp. 21-34 ◽  
Author(s):  
Khadijeh Mirzaei Talarposhti ◽  
Mehrzad Khaki Jamei
Keyword(s):  
Image Encryption ◽  
Chaotic Map ◽  
Harmony Search ◽  
Encryption Method

scholarly journals An Image Encryption Scheme of Logistic Modulation Using Computer-Generated Hologram and Chaotic Map

2018 ◽  
Vol 2018 ◽  
pp. 1-6 ◽  
Author(s):  
Hui Ren ◽  
Jun Wang ◽  
Qiong-Hua Wang
Keyword(s):  
Image Encryption ◽  
Chaotic Map ◽  
Security Analysis ◽  
Security Level ◽  
Computer Generated Hologram ◽  
Key Space ◽  
Strong Robustness ◽  
High Security Level ◽  
Simulation Results ◽  
Encryption Method

We introduce an image encryption method based on computer-generated hologram (CGH) and two-dimensional Sine Logistic modulation map (2D-SLMM). We combine CGH and 2D-SLMM to improve encryption security. During the encryption process, the hologram needs to be logistically modulated by 2D-SLMM. This logistic modulation technique can avoid complex algorithms. Simulation results and security analysis demonstrate that the proposed approach has a high security level, good invisibility of image information in ciphertext, large key space, and strong robustness.

Selective image encryption method based on dynamic DNA coding and new chaotic map

Optik ◽  
2021 ◽  
pp. 167286
Author(s):  
Qiqi Cun ◽  
Xiaojun Tong ◽  
Zhu Wang ◽  
Miao Zhang
Keyword(s):  
Image Encryption ◽  
Chaotic Map ◽  
Dna Coding ◽  
Encryption Method

scholarly journals A New Image Encryption Algorithm Based on Composite Chaos and Hyperchaos Combined with DNA Coding

Entropy ◽  
2020 ◽  
Vol 22 (2) ◽  
pp. 171 ◽  
Author(s):  
Yujie Wan ◽  
Shuangquan Gu ◽  
Baoxiang Du
Keyword(s):  
Image Encryption ◽  
Chaotic Behavior ◽  
Chaotic Map ◽  
Security Analysis ◽  
High Sensitivity ◽  
Experimental Simulation ◽  
One Dimensional ◽  
Dna Coding ◽  
Key Space ◽  
Encryption Method

In order to obtain chaos with a wider chaotic scope and better chaotic behavior, this paper combines the several existing one-dimensional chaos and forms a new one-dimensional chaotic map by using a modular operation which is named by LLS system and abbreviated as LLSS. To get a better encryption effect, a new image encryption method based on double chaos and DNA coding technology is proposed in this paper. A new one-dimensional chaotic map is combined with a hyperchaotic Qi system to encrypt by using DNA coding. The first stage involves three rounds of scrambling; a diffusion algorithm is applied to the plaintext image, and then the intermediate ciphertext image is partitioned. The final encrypted image is formed by using DNA operation. Experimental simulation and security analysis show that this algorithm increases the key space, has high sensitivity, and can resist several common attacks. At the same time, the algorithm in this paper can reduce the correlation between adjacent pixels, making it close to 0, and increase the information entropy, making it close to the ideal value and achieving a good encryption effect.

An Image Encryption Method Based on Tent Chaotic Map in DCT Domain

2011 ◽  
Vol 279 ◽  
pp. 456-460
Author(s):  
Jian Hua Song ◽  
Qun Ding
Keyword(s):  
Image Encryption ◽  
Chaotic System ◽  
High Efficiency ◽  
Chaotic Map ◽  
Transform Domain ◽  
Dct Domain ◽  
Cryptographic Algorithms ◽  
Simulation Results ◽  
Encryption Method

In recent years, the chaos based cryptographic algorithms have suggested some new and efficient ways to develop secure image encryption techniques. In this paper, the sequence was generated using chaotic system, combined with high efficiency and better security in transform domain. An image encryption method based on Tent chaotic map in DCT domain was proposed. The simulation results show that this method has characteristics such as high efficiency and good safety, and has a certain practicality and objectivity.

scholarly journals Designing 1D Chaotic Maps for Fast Chaotic Image Encryption

Electronics ◽  
2021 ◽  
Vol 10 (17) ◽  
pp. 2116
Author(s):  
Mustafa Kamil Khairullah ◽  
Ammar Ahmed Alkahtani ◽  
Mohd Zafri Bin Bin Baharuddin ◽  
Ammar Al-Jubari
Keyword(s):  
Image Encryption ◽  
Chaotic Maps ◽  
Chaotic Map ◽  
Logistic Map ◽  
Expansion Method ◽  
Absolute Error ◽  
Change Rate ◽  
Quadratic Map ◽  
Encryption Method ◽  
Higher Sensitivity

Chaotic maps that can provide highly secure key sequences and ease of structure implementation are predominant requirements in image encryption systems. One Dimensional (1D) chaotic maps have the advantage of a simple structure and can be easily implemented by software and hardware. However, key sequences produced by 1D chaotic maps are not adequately secure. Therefore, to improve the 1D chaotic maps sequence security, we propose two chaotic maps: 1D Improved Logistic Map (1D-ILM) and 1D Improved Quadratic Map (1D-IQM). The proposed maps have shown higher efficiency than existing maps in terms of Lyapunov exponent, complexity, wider chaotic range, and higher sensitivity. Additionally, we present an efficient and fast encryption method based on 1D-ILM and 1D-IQM to enhance image encryption system performance. This paper also introduces a key expansion method to reduce the number of chaotic map iteration needs, thereby decreasing encryption time. The security analyses and experimental results are confirmed that 2D Correlation Coefficient (CC) Information Entropy (IE), Number of Pixels Change Rate (NPCR), Unified Average Changing Intensity (UACI), Mean Absolute Error (MAE), and decryption quality are able to meet the encryption security demands (CC = −0.00139, IE = 7.9990, NPCR = 99.6114%, UACI = 33.46952% and MAE = 85.3473). Furthermore, the proposed keyspace reaches 10240, and the encryption time is 0.025s for an image with a size of 256 × 256. The proposed system can yield efficacious security results compared to obtained results from other encryption systems.

scholarly journals A Novel Chaotic Map and an Improved Chaos-Based Image Encryption Scheme

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Xianhan Zhang ◽  
Yang Cao
Keyword(s):  
Image Encryption ◽  
Chaotic Map ◽  
Logistic Map ◽  
Security Analysis ◽  
Encryption Scheme ◽  
Tent Map ◽  
One Dimensional ◽  
Novel Approach ◽  
Arnold’S Cat Map ◽  
Encryption Method

In this paper, we present a novel approach to create the new chaotic map and propose an improved image encryption scheme based on it. Compared with traditional classic one-dimensional chaotic maps like Logistic Map and Tent Map, this newly created chaotic map demonstrates many better chaotic properties for encryption, implied by a much larger maximal Lyapunov exponent. Furthermore, the new chaotic map and Arnold’s Cat Map based image encryption method is designed and proved to be of solid robustness. The simulation results and security analysis indicate that such method not only can meet the requirement of imagine encryption, but also can result in a preferable effectiveness and security, which is usable for general applications.

scholarly journals Triple layer image security using bit-shift, chaos, and stream encryption

2020 ◽  
Vol 9 (3) ◽  
pp. 980-987
Author(s):  
Ajib Susanto ◽  
De Rosal Ignatius Moses Setiadi ◽  
Eko Hari Rachmawanto ◽  
Ibnu Utomo Wahyu Mulyono ◽  
Christy Atika Sari ◽  
...  
Keyword(s):  
Image Encryption ◽  
Visual Analysis ◽  
Chaotic Map ◽  
Measuring Instruments ◽  
Differential Analysis ◽  
Measurement Instruments ◽  
Avalanche Effect ◽  
Image Security ◽  
Bit Error Ratio ◽  
Encryption Method

One popular image security technique is image encryption. This research proposes an image encryption technique that consists of three encryption layers, i.e. bit-shift encryption, chaos-based encryption, and stream encryption. The chaos algorithm used is Arnold's chaotic map, while the stream cipher algorithm used is RC4. Each layer has different cryptology characteristics in order to obtain safer image encryption. The characteristics of cryptology are permutation, confusion, diffusion, and substitution. The combination of the proposed encryption method aims to secure images against various attacks, especially attacks on statistics and differentials. The encryption method testing is done by various measuring instruments such as statistical analysis, i.e. entropy information, avalanche effect, and histogram, differential analysis, i.e. UACI and NPCR, visual analysis using PSNR and SSIM, and bit error ratio. Based on the results of experiments that the encryption method that we propose can work excellently based on various measurement instruments. The decryption process can also work perfectly this is evidenced by the ∞ value based on PSNR, and zero value based on SSIM and BER.

Image Encryption Method Based on Chaotic Map

2007 ◽  
Author(s):  
Yuanzhi Wang ◽  
Guangyong Ren ◽  
Julang Jiang ◽  
Jian Zhang ◽  
Lijuan Sun
Keyword(s):  
Image Encryption ◽  
Chaotic Map ◽  
Encryption Method
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