scholarly journals A Simple, Accurate and Highly Secure Method to Encrypt-Decrypt Digital Images

2019 ◽  
Vol 3 (3) ◽  
Author(s):  
Jamil Al-Azzeh ◽  
Ziad Alqadi ◽  
Qazem Jaber
Keyword(s):  
Image Encryption ◽  
Digital Image ◽  
Digital Images ◽  
New Method ◽  
Naked Eye ◽  
Highly Efficient ◽  
Encryption Decryption ◽  
Digital Image Encryption

 The digital image may be important and has a secret character, which requires not understanding it when looking at the naked eye or not understanding the contents. So seeking a method of digital image encryption-decryption is a very important task.In this paper we will introduce a new method of digital image encryption-decryption, which will be very simple, highly secure and accurate and highly efficient.

A Novel Encryption Scheme for Digital Images Based on Compound Chaos Algorithm

2011 ◽  
Vol 474-476 ◽  
pp. 1475-1478 ◽  
Author(s):  
Feng Ying Han ◽  
Cong Xu Zhu ◽  
Chang Sheng Liu
Keyword(s):  
Image Encryption ◽  
Digital Image ◽  
Digital Images ◽  
Image Transmission ◽  
Chaos Encryption ◽  
Key Space ◽  
Chaos Algorithm ◽  
Simulation Testing ◽  
Chaos Sequences ◽  
Digital Image Encryption

A compound Chaos encryption algorithm for digital images is designed in this paper. Lorenz Chaotic system and Logistics map are linked in cascade to generate Chaos sequences. Then the permutation matrix is constructed to encrypt the digital image. The new algorithm can expand the key space and improve anti-aggressive ability. Matlab7.0 is used for simulation testing of the image encryption. Experimental results show that the algorithm is feasible and it can satisfy the security requirement for image transmission and storage. The compound Chaos algorithm can be also used for color digital image encryption.

scholarly journals Review of Image Security approaches: Concepts, Issues, Challenges and Applications

2021 ◽  
Vol 23 (06) ◽  
pp. 1047-1054
Author(s):  
Shashikant S. Radke ◽  
◽  
Dhirendra S. Mishra ◽  
Keyword(s):  
Image Encryption ◽  
Digital Image ◽  
Digital Images ◽  
Research Work ◽  
Image Data ◽  
Image Security ◽  
Encryption And Decryption ◽  
Encryption Algorithms ◽  
Encrypted Images ◽  
Digital Image Encryption

Currently, digital images are widely used in different applications to represent distinguishable contents. Also, diagnosing diseases using medical images became vital and crucial and if the data in these images are liable for unauthorized usage, this may lead to severe problems. The security of these data has become an urgent and serious problem and needs immediate attention. Traditional encryption and decryption algorithms are not sufficient to secure digital images. Especially, image encryption and decryption algorithms are needed. Securing image data with effective encryption approaches can be more useful for applications. This article aims to comparatively study the different digital image encryption algorithms. In the current Pandemic scenario of COVID-19, the variety of research work can be communicated through the encrypted images among researchers to avoid the leakage of information. These image encryption algorithms are having applications to secure image data and store and share them in the network environments.

Digital Image Encryption Test System Based on FPGA and Nios II Soft Core

2021 ◽  
Vol 55 (5) ◽  
pp. 490-499
Author(s):  
Zhong-xun Wang ◽  
Kai-yue Sha ◽  
Xing-long Gao
Keyword(s):  
Image Encryption ◽  
Digital Image ◽  
Test System ◽  
Soft Core ◽  
Nios Ii ◽  
Digital Image Encryption

scholarly journals New modified map for digital image encryption and its performance

2017 ◽  
Vol 893 ◽  
pp. 012050 ◽  
Author(s):  
MT Suryadi ◽  
Maria Yus Trinity Irsan ◽  
Yudi Satria
Keyword(s):  
Image Encryption ◽  
Digital Image ◽  
Digital Image Encryption

scholarly journals Robust Digital Image Encryption Approach Based on Extended Large-Scale Randomization Key-Stream Generator

2018 ◽  
Vol 2 (2) ◽  
pp. 175-195
Author(s):  
Raghad Yousif ◽  
Ayad Ismaeel
Keyword(s):  
Image Encryption ◽  
Digital Image ◽  
Large Scale ◽  
Stream Cipher ◽  
Statistical Tests ◽  
Basic Form ◽  
Good Resistance ◽  
Image Pixels ◽  
Digital Image Encryption ◽  
Residual Intelligibility

This paper presents a novel image encryption scheme based on extended largescale randomization key-stream generator. The basic form of the key-stream generator is presented, and employed in digital image ciphering. The modification of the basic form also, presented, and gives encouraging results in image encryption as compared with classical non-linear stream cipher generators and the basic form. Pixel shuffling is performed via vertical and horizontal permutation. Shuffling is used to expand diffusion in the image and dissipate high correlation among image pixels the sequences generated from all presented generators are introduced to five well-known statistical tests of randomness to judge their randomness characteristic. The ciphered images are tested for their residual intelligibility subjectively. The measures applied to images ciphered by one of the classical key-stream cipher generators (Threshold generator) for the purpose of comparison with the presented key-stream algorithms. Experiments results show that the proposed algorithm achieves the image security. In order to evaluate performance, the proposed algorithm was measured through a series of tests. Experimental results illustrate that the proposed scheme shows a good resistance against brute-force and statistical attacks

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