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We propose a privacy-preserving machine learning scheme with encryption-then-compression (EtC) images, where EtC images are images encrypted by using a block-based encryption method proposed for EtC systems with JPEG compression. In this…

Cryptography and Security · Computer Science 2020-12-30 Ayana Kawamura , Yuma Kinoshita , Takayuki Nakachi , Sayaka Shiota , Hitoshi Kiya

Program obfuscation is a widely employed approach for software intellectual property protection. However, general obfuscation methods (e.g., lexical obfuscation, control obfuscation) implemented in mainstream obfuscation tools are heuristic…

Cryptography and Security · Computer Science 2017-10-04 Hui Xu , Yangfan Zhou , Yu Kang , Michael R. Lyu

Encrypted computing is an emerging technology based on a processor that `works encrypted', taking encrypted inputs to encrypted outputs while data remains in encrypted form throughout. It aims to secure user data against possible insider…

Cryptography and Security · Computer Science 2019-02-19 Peter T. Breuer

We present a description of encoding/decoding for a concatenated quantum code that enables both protection against quantum computational errors and the occurrence of one quantum erasure. For this, it is presented how encoding and decoding…

Information Theory · Computer Science 2010-06-02 G. O. Santos , F. M. Assis , A. F. Lima

In this paper, we introduce a novel image encryption and decryption algorithm using hyperchaotic signals from the novel 3D hyperchaotic map, 2D memristor map, Convolutional Neural Network (CNN), and key sensitivity analysis to achieve…

Cryptography and Security · Computer Science 2024-06-25 Bharath V Nair , Vismaya V S , Sishu Shankar Muni , Ali Durdu

This paper studies the security of a recently-proposed chaos-based image encryption scheme, and points out the following problems: 1) there exist a number of invalid keys and weak keys, and some keys are partially equivalent for…

Cryptography and Security · Computer Science 2016-10-11 Chengqing Li , Shujun Li , Muhammad Asim , Juana Nunez , Gonzalo Alvarez , Guanrong Chen

Neural-based image and video codecs are significantly more power-efficient when weights and activations are quantized to low-precision integers. While there are general-purpose techniques for reducing quantization effects, large losses can…

Image and Video Processing · Electrical Eng. & Systems 2023-01-26 Amir Said , Reza Pourreza , Hoang Le

Recently, an image encryption scheme based on a compound chaotic sequence was proposed. In this paper, the security of the scheme is studied and the following problems are found: (1) a differential chosen-plaintext attack can break the…

Cryptography and Security · Computer Science 2009-12-21 Chengqing Li , Shujun Li , Guanrong Chen , Wolfgang A. Halang

This paper considers a method of coding the sensor outputs in order to detect stealthy false data injection attacks. An intelligent attacker can design a sequence of data injection to sensors and actuators that pass the state estimator and…

Cryptography and Security · Computer Science 2016-11-17 Fei Miao , Quanyan Zhu , Miroslav Pajic , George J. Pappas

Medical image encryption plays an important role in protecting sensitive health information from cyberattacks and unauthorized access. In this paper, we introduce a secure and robust encryption scheme that is multi-modality compatible and…

Cryptography and Security · Computer Science 2025-04-30 Anandik N Anand , Sishu Shankar Muni , Abhishek Kaushik

In this paper, we propose to improve the security performance of a recently proposed color image encryption algorithm which is based on multi-chaotic systems. The existing cryptosystem employed a pixel-chaotic-shuffle mechanism to encrypt…

Cryptography and Security · Computer Science 2014-03-27 Musheer Ahmad , Hamed D. Alsharari , Munazza Nizam

In many social networks, one publishes information that one wants to reveal (e.g., the photograph of some friends) together with information that may lead to privacy breaches (e.g., the name of these people). One might want to hide this…

Cryptography and Security · Computer Science 2024-04-30 Chen-Da Liu , Simone Santini

Image registration is a key task in medical imaging applications, allowing to represent medical images in a common spatial reference frame. Current approaches to image registration are generally based on the assumption that the content of…

Computer Vision and Pattern Recognition · Computer Science 2024-04-17 Riccardo Taiello , Melek Önen , Francesco Capano , Olivier Humbert , Marco Lorenzi

In this article, we present a novel box-covering algorithm for analyzing the fractal properties of complex networks. Unlike traditional algorithms that impose a predetermined box size, our approach assigns nodes to boxes identified by their…

Disordered Systems and Neural Networks · Physics 2025-09-23 Michal Lepek , Kordian Makulski , Agata Fronczak , Piotr Fronczak

This paper aims to evaluate the safety of a pixel-based image encryption method, which has been proposed to apply images with no visual information to deep neural networks (DNN), in terms of robustness against ciphertext-only attacks (COA).…

Cryptography and Security · Computer Science 2019-12-11 Warit Sirichotedumrong , Yuma Kinoshita , Hitoshi Kiya

Three-dimensional (3D) printing's accessibility enables rapid manufacturing but also poses security risks, such as the unauthorized production of untraceable firearms and prohibited items. To ensure traceability and accountability,…

Information Theory · Computer Science 2025-08-07 Junsheng Liu , Netanel Raviv

Recently, an image encryption algorithm using block-based scrambling and image filtering has been proposed by Hua et al. In this paper, we analyze the security problems of the encryption algorithm in detail and break the encryption by a…

Cryptography and Security · Computer Science 2019-01-01 Feng Yu , Xinhui Gong , Hanpeng Li , Xiaohong Zhao

In this research paper, the authors propose a new approach to digital image compression using crack coding This method starts with the original image and develop crack codes in a recursive manner, marking the pixels visited earlier and…

Multimedia · Computer Science 2011-12-13 Dr. T. Meyyappan , SM. Thamarai , N. M. Jeya Nachiaban

This paper proposed several methods to transplant the compound chaotic image encryption scheme with permutation based on 3D baker into image formats as Joint Photographic Experts Group (JPEG) and Graphics Interchange Format (GIF). The new…

Cryptography and Security · Computer Science 2012-08-07 Shiyu Ji , Xiaojun Tong , Miao Zhang

Feature coding has been recently considered to facilitate intelligent video analysis for urban computing. Instead of raw videos, extracted features in the front-end are encoded and transmitted to the back-end for further processing. In this…

Multimedia · Computer Science 2020-09-11 Weiyao Lin , Xiaoyi He , Wenrui Dai , John See , Tushar Shinde , Hongkai Xiong , Lingyu Duan