Selective Encryption of Video Using Multiple Chaotic Maps

2010 ◽  
pp. 164-168 ◽  
Author(s):  
L. M. Varalakshmi ◽  
G. Florence Sudha
Keyword(s):  
Chaotic Maps ◽  
Selective Encryption ◽  
Multiple Chaotic Maps

scholarly journals Joint Image Compression and Encryption Using IWT with SPIHT, Kd-Tree and Chaotic Maps

2018 ◽  
Vol 8 (10) ◽  
pp. 1963 ◽  
Author(s):  
◽  
Jun Sang ◽  
Muhammad Azeem Akbar ◽  
Bin Cai ◽  
Hong Xiang ◽  
...  
Keyword(s):  
Image Compression ◽  
Chaotic Maps ◽  
Signal To Noise Ratio ◽  
Set Partitioning ◽  
Huffman Coding ◽  
Differential Analysis ◽  
Bandwidth Utilization ◽  
Multiple Chaotic Maps ◽  
Integer Wavelet ◽  
Image Compression And Encryption

Confidentiality and efficient bandwidth utilization require a combination of compression and encryption of digital images. In this paper, a new method for joint image compression and encryption based on set partitioning in hierarchical trees (SPIHT) with optimized Kd-tree and multiple chaotic maps was proposed. First, the lossless compression and encryption of the original images were performed based on integer wavelet transform (IWT) with SPIHT. Wavelet coefficients undergo diffusions and permutations before encoded through SPIHT. Second, maximum confusion, diffusion and compression of the SPIHT output were performed via the modified Kd-tree, wavelet tree and Huffman coding. Finally, the compressed output was further encrypted with varying parameter logistic maps and modified quadratic chaotic maps. The performance of the proposed technique was evaluated through compression ratio (CR) and peak-signal-to-noise ratio (PSNR), key space and histogram analyses. Moreover, this scheme passes several security tests, such as sensitivity, entropy and differential analysis tests. According to the theoretical analysis and experimental results, the proposed method is more secure and decreases the redundant information of the image more than the existing techniques for hybrid compression and encryption.

scholarly journals A Combined Encryption Compression Scheme Using Chaotic Maps

2013 ◽  
Vol 13 (2) ◽  
pp. 75-81 ◽  
Author(s):  
Bhagwati Prasad ◽  
Kunti Mishra
Keyword(s):  
Chaotic Maps ◽  
Medical Images ◽  
Real Life ◽  
Galois Field ◽  
Compression Scheme ◽  
Encrypted Data ◽  
Legal Documents ◽  
High Security ◽  
Significant Compression ◽  
Multiple Chaotic Maps

Abstract The intent of this paper is to propose an encryption compression scheme using multiple chaotic maps along with the concept of Galois field. This method improves the security of the encrypted data and a significant compression is also achieved. The obtained high security architectures are ideal for many real life applications such as medical images, legal documents and military and other operation

A Hash Algorithm Construction Based on Generalized Chaotic Maps

2013 ◽  
Vol 325-326 ◽  
pp. 1502-1507 ◽  
Author(s):  
Xuan Fang ◽  
Cai Qiong ◽  
Lan Fang
Keyword(s):  
Chaotic Maps ◽  
Chaotic Map ◽  
Mapping Function ◽  
Variable Parameters ◽  
Chaotic Mapping ◽  
Hash Algorithm ◽  
Original Message ◽  
Multiple Chaotic Maps ◽  
Nonlinear Devices ◽  
Algorithm Construction

Due to the single chaotic map on finite precisions chaotic characteristics emerge degradation,the length of cycle become shorter, the Hash algorithm constructed by it is easily forecast, the security is not strong.In this paper, the nonlinear devices in the traditional block cipher S-box is used to construct variable parameters Hash algorithm composed of multiple chaotic maps. By using the original message, intermediate values of iteration and number of iterations as the input of the S-box, output of S-box is used to determine the parameters of chaotic maps, on this account to change the chaotic mapping function for each round. By execute text testing, statistical analysis and collision analysis for this algorithm through simulation experiments, the experimental results show that this generalized chaotic Hash algorithm has good sensitivity of the information, low possibility of collision,good safety and operational efficiency.

A Simple Secure Hash Function Scheme Using Multiple Chaotic Maps

3D Research ◽  
2017 ◽  
Vol 8 (2) ◽  
Author(s):  
Musheer Ahmad ◽  
Shruti Khurana ◽  
Sushmita Singh ◽  
Hamed D. AlSharari
Keyword(s):  
Hash Function ◽  
Chaotic Maps ◽  
Multiple Chaotic Maps

scholarly journals Dynamic Substitution and Confusion-Diffusion-Based Noise-Resistive Image Encryption Using Multiple Chaotic Maps

IEEE Access ◽  
2021 ◽  
Vol 9 ◽  
pp. 52277-52291
Author(s):  
Mujeeb Ur Rehman ◽  
Arslan Shafique ◽  
Sohail Khalid ◽  
Iqtadar Hussain
Keyword(s):  
Image Encryption ◽  
Chaotic Maps ◽  
Multiple Chaotic Maps

scholarly journals Public key cryptosystem based on multiple chaotic maps for image encryption

2021 ◽  
Vol 22 (3) ◽  
pp. 1457
Author(s):  
Yousif S. Najaf ◽  
Maher K. Mahmood Al-Azawi
Keyword(s):  
Chaotic Maps ◽  
Third Party ◽  
Public Key ◽  
Secret Key ◽  
Chebyshev Map ◽  
Key Space ◽  
Public Keys ◽  
Secret Keys ◽  
Shared Secret ◽  
Multiple Chaotic Maps

Image is one of the most important forms of information. In this paper, two public key encryption systems are proposed to protect images from various attacks. Both systems depend on generating a chaotic matrix (<em>I</em>) using multiple chaotic maps. The parameters for these maps are taken from the shared secret keys generated from Chebyshev map using public keys for Alice and secret key for Bob or vice versa. The second system has the feature of deceiving the third party for searching for fake keys. Analysis and tests showed that the two proposed systems resist various attacks and have very large key space. The results are compared with other chaos based systems to show the superiority of these two proposed systems.

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