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In this paper, a scheme for the encryption and decryption of colored images by using the Lorenz system and the discrete cosine transform in two dimensions (DCT2) is proposed. Although chaos is random, it has deterministic features that can…

密码学与安全 · 计算机科学 2017-01-12 Mohammed Alsaedi

The increase in data traffic on the internet has significantly increased the relevance of data and image encryption. Among the techniques most used in cryptography, chaotic systems have received great attention due to their easy…

密码学与安全 · 计算机科学 2020-02-19 R. C. Gonzalez , E. G. Nepomuceno

In this paper, chaotic block image permutation and XOR operation are performed to achieve image encryption. The studied method of encryption makes use of chaotic systems properties for secure and speed image encryption. Firstly, the…

图像与视频处理 · 电气工程与系统科学 2018-09-03 Raneem A. Aboughalia , Osama A. S. Alkishriwo

In this paper, a simple and robust color image encryption algorithm based on high-dimensional chaotic maps is proposed. The algorithm employs a 3D Arnold transform to perform inter-component shuffling of plain-image, while a 2D…

密码学与安全 · 计算机科学 2014-03-20 Musheer Ahmad , Hamed D Al-Sharari

These days, a tremendous quantity of digital visual data is sent over many networks and stored in many different formats. This visual information is usually very confidential and financially rewarding. Maintaining safe transmission of data…

密码学与安全 · 计算机科学 2025-04-01 Chandra Sekhar Sanaboina

Nowadays, the chaotic cryptosystems are gaining more attention due to their efficiency, the assurance of robustness and high sensitivity corresponding to initial conditions. In literature, on one hand there are many encryption algorithms…

密码学与安全 · 计算机科学 2020-06-23 Temadher Alassiry Al-Maadeed , Iqtadar Hussain , Amir Anees , M. T. Mustafa

In this paper we have proposed a method that uses chaotic logistic mapping and DNA encoding to encrypt the image. A 32 bit ASCII private key is used to diffuse the image. The results demonstrated clearly show that encryption algorithm based…

密码学与安全 · 计算机科学 2020-03-17 Sakshi Patel , Bharath K P , Rajesh Kumar Muthu

To secure the digital images over insecure transmission channels, a new image encryption algorithm Noise-Crypt is proposed in this paper. Noise-Crypt integrates non-linear random noise, hybrid chaotic maps, and SHA-256 hashing algorithm.…

密码学与安全 · 计算机科学 2023-09-21 Laiba Asghar , Fawad Ahmed , Muhammad Shahbaz Khan , Arshad Arshad , Jawad Ahmad

In this paper an algorithm for multi-color image compression-encryption is introduced. For compression step fuzzy transform based on exponential b-spline function is used. In encryption step, a novel combination chaotic system based on Sine…

密码学与安全 · 计算机科学 2017-09-07 M. Zarebnia , R. Kianfar , R. Parvaz

In recent years, characterized by the innovation of technology and the digital revolution, the field of media has become important. The transfer and exchange of multimedia data and duplication have become major concerns of researchers.…

多媒体 · 计算机科学 2016-02-10 Med Karim Abdmouleh , Ali Khalfallah , Med Salim Bouhlel

In the recent world, security is a prime important issue, and encryption is one of the best alternative way to ensure security. More over, there are many image encryption schemes have been proposed, each one of them has its own strength and…

密码学与安全 · 计算机科学 2011-03-22 G. A. Sathishkumar , Dr. K. Bhoopathy bagan , Dr. N. Sriraam

Optical chaos is a topic of current research characterized by high-dimensional nonlinearity which is attributed to the delay-induced dynamics, high bandwidth and easy modular implementation of optical feedback. In light of these facts,…

光学 · 物理学 2011-03-01 S. Banerjee , L. Rondoni , S. Mukhopadhyay , A. P. Misra

With society's increasing reliance on digital data sharing, the protection of sensitive information has become critical. Encryption serves as one of the privacy-preserving methods; however, its realization in the audio domain predominantly…

密码学与安全 · 计算机科学 2025-09-23 Petr Grinberg , Eric Bezzam , Paolo Prandoni , Martin Vetterli

In this paper we propose a novel image encryption scheme. The proposed method is based on the chaos theory. Our cryptosystem uses the chaos theory to define a dynamic chaotic Look-Up Table (LUT) to compute the new value of the current pixel…

密码学与安全 · 计算机科学 2016-02-11 Med Karim Abdmouleh , Ali Khalfallah , Med Salim Bouhlel

The emergence of quantum computing has introduced unprecedented security challenges to conventional cryptographic systems, particularly in the domain of optical communications. This research addresses these challenges by innovatively…

This paper describes a novel method of encrypting wave files in popular image formats like JPEG, TIF and PNG along with retrieving them from these image files. MATLAB software is used to perform matrix manipulation to encrypt and decrypt…

密码学与安全 · 计算机科学 2013-08-27 Rahul R Upadhyay

In an era where global connectivity has become critical, satellite communication is essential for businesses, governments, and individuals. Widely used services with satellite communication such as climate change monitoring, military…

密码学与安全 · 计算机科学 2024-10-29 Farrukh Bin Rashid , Windhya Rankothge , Somayeh Sadeghi , Hesamodin Mohammadian , Ali Ghorbani

Secret communication techniques are of great demand since last 3000 years due to the need of information security and confidentiality at various levels of communication such as while communicating confidential personal data, medical data of…

密码学与安全 · 计算机科学 2016-02-02 Minati Mishra , Priyadarsini Mishra , M. C. Adhikary , Sunit Kumar

A secure and reliable image encryption scheme is presented in this study. The encryption scheme hereby introduces a novel chaotic log-map, deep convolution neural network (CNN) model for key generation, and bit reversion operation for the…

信息论 · 计算机科学 2022-02-01 Uğur Erkan , Abdurrahim Toktas , Serdar Enginoğlu , Enver Karabacak , Dang N. H. Thanh

Medical image encryption could aid in preserving patient privacy. In this article, we provide a chaotic system-based medical picture encryption method. The diffusion and permutation architecture was used. The permutation based on plain…

密码学与安全 · 计算机科学 2024-06-13 Dr Chandra Sekhar Sanaboina , Tejaswini Yadla
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