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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…

Cryptography and Security · Computer Science 2016-02-11 Med Karim Abdmouleh , Ali Khalfallah , Med Salim Bouhlel

In this paper, we propose a privacy-preserving image classification method using encrypted images under the use of the ConvMixer structure. Block-wise scrambled images, which are robust enough against various attacks, have been used for…

Computer Vision and Pattern Recognition · Computer Science 2022-08-05 Zheng Qi , AprilPyone MaungMaung , Hitoshi Kiya

We propose a privacy-preserving framework for learning visual classifiers by leveraging distributed private image data. This framework is designed to aggregate multiple classifiers updated locally using private data and to ensure that no…

Computer Vision and Pattern Recognition · Computer Science 2017-07-31 Ryo Yonetani , Vishnu Naresh Boddeti , Kris M. Kitani , Yoichi Sato

Integral imaging-based cryptographic algorithms provides a new way to design secure and robust image encryption schemes. In this paper, we introduce a performance-enhanced image encryption schemes based on depth-conversion integral imaging…

Cryptography and Security · Computer Science 2015-01-20 Xiaowei Li , Chengqing Li , Seok-Tae Kim , In-Kwon Lee

The protection of confidential image data from unauthorized access is an important area of research in network communication. This paper presents a high-level security encryption scheme for gray scale images. The gray level image is first…

Multimedia · Computer Science 2012-03-12 G. Sudheer , B. V. S. Renuka Devi

The capacity and security of the confidential message on the channel are two important challenges in steganography. In this paper, a new block steganography model is presented using the bargain method so that a competitive model is…

With the advent of digital communication, securing digital images during transmission and storage has become a critical concern. The traditional s-box substitution methods often fail to effectively conceal the information within highly…

Cryptography and Security · Computer Science 2023-08-22 Muhammad Shahbaz Khan , Jawad Ahmad , Hisham Ali , Nikolaos Pitropakis , Ahmed Al-Dubai , Baraq Ghaleb , William J. Buchanan

We present a scheme for implementing homomorphic encryption on coherent states encoded using phase-shift keys. The encryption operations require only rotations in phase space, which commute with computations in the codespace performed via…

Quantum Physics · Physics 2018-04-11 Si-Hui Tan , Yingkai Ouyang , Peter P. Rohde

A variety of new and powerful algorithms have been developed for image compression over the years. Among them the wavelet-based image compression schemes have gained much popularity due to their overlapping nature which reduces the blocking…

Computer Vision and Pattern Recognition · Computer Science 2012-09-13 V. J. Rehna , M. K. Jeya Kumar

Reversible data hiding continues to attract significant attention in recent years. In particular, an increasing number of authors focus on the higher significant bit (HSB) plane of an image which can yield more redundant space. On the other…

Cryptography and Security · Computer Science 2022-06-17 Fuhu Wu , Jian Sun , Shun Zhang , Zhili Chen , Hong Zhong

Based on Restricted Boltzmann Machines (RBMs), an improved pseudo-stochastic sequential cipher generator is proposed. It is effective and efficient because of the two advantages: this generator includes a stochastic neural network that can…

Cryptography and Security · Computer Science 2016-08-18 Fei Hu , Xiaofei Xu , Tao Peng , Changjiu Pu , Li Li

Fully homomorphic encryption (FHE) is a technique that enables statistical processing and machine learning while protecting data, including sensitive information collected by single board computers (SBCs), on a cloud server. Among FHE…

Cryptography and Security · Computer Science 2025-04-29 Marin Matsumoto , Ai Nozaki , Hideki Takase , Masato Oguchi

We propose a robust and provably secure image steganography framework based on latent-space iterative optimization. Within this framework, the receiver treats the transmitted image as a fixed reference and iteratively refines a latent…

Cryptography and Security · Computer Science 2026-03-11 Yanan Li , Zixuan Wang , Qiyang Xiao , Yanzhen Ren

Sudoku puzzles are now popular among people in many countries across the world with simple constraints that no repeated digits in each row, each column, or each block. In this paper, we demonstrate that the Sudoku configuration provides us…

Cryptography and Security · Computer Science 2012-07-26 Yue Wu , Sos S. Agaian , Joseph P. Noonan

Although it has been surpassed by many subsequent coding standards, JPEG occupies a large share of the storage load of the current data hosting service. To reduce the storage costs, DropBox proposed a lossless secondary compression…

Multimedia · Computer Science 2021-05-05 Xiao Yan , Zhixiong Di , Bowen Huang , Minjiang Li , Wenqiang Wang , Xiaoyang Zeng , Yibo Fan

As a primary encryption primitive balancing the privacy and searchability of cloud storage images, thumbnail preserving encryption (TPE) enables users to quickly identify the privacy personal image on the cloud and request this image from…

Cryptography and Security · Computer Science 2025-04-09 Dong Xie , Zhiyang Li , Shuangxi Guo , Fulong Chen , Peng Hu

Recently, a chaos-based image encryption algorithm called MCKBA (Modified Chaotic-Key Based Algorithm) was proposed. This paper analyzes the security of MCKBA and finds that it can be broken with a differential attack, which requires only…

Cryptography and Security · Computer Science 2016-10-04 Chengqing Li , Michael Z. Q. Chen , Kwok-Tung Lo

In this paper, a new steganographic method is presented that provides minimum distortion in the stego image. The proposed encoding algorithm focuses on DCT rounding error and optimizes that in a way to reduce distortion in the stego image,…

Multimedia · Computer Science 2020-04-24 Md Amiruzzaman , Rizal Mohd Nor

Compressive imaging is an emerging application of compressed sensing, devoted to acquisition, encoding and reconstruction of images using random projections as measurements. In this paper we propose a novel method to provide a scalable…

Information Theory · Computer Science 2013-10-07 Diego Valsesia , Enrico Magli

In this paper, we propose a session based bit level symmetric key cryptographic technique and it is termed as Spiral Matrix Based Bit Orientation Technique (SMBBOT). SMBBOT consider the input plain text as binary bit stream. During…

Cryptography and Security · Computer Science 2013-05-06 Manas Paul , Jyotsna Kumar Mandal