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This paper proposes a new block scrambling encryption scheme that enhances the security of encryption-then-compression (EtC) systems for JPEG images, which are used, for example, to securely transmit images through an untrusted channel…

Cryptography and Security · Computer Science 2018-06-13 Warit Sirichotedumrong , Tatsuya Chuman , Shoko Imaizumi , Hitoshi Kiya

In this paper, we propose a model protection method by using block-wise pixel shuffling with a secret key as a preprocessing technique to input images for the first time. The protected model is built by training with such preprocessed…

Machine Learning · Computer Science 2020-08-07 MaungMaung AprilPyone , Hitoshi Kiya

In this letter, as a proof of concept, we propose a deep learning-based approach to attack the chaos-based image encryption algorithm in \cite{guan2005chaos}. The proposed method first projects the chaos-based encrypted images into the…

Machine Learning · Computer Science 2019-07-30 Chen He , Kan Ming , Yongwei Wang , Z. Jane Wang

Deep Neural Networks (DNNs) have achieved remarkable progress in various real-world applications, especially when abundant training data are provided. However, data isolation has become a serious problem currently. Existing works build…

Machine Learning · Computer Science 2022-02-22 Jun Zhou , Longfei Zheng , Chaochao Chen , Yan Wang , Xiaolin Zheng , Bingzhe Wu , Cen Chen , Li Wang , Jianwei Yin

In the era of cloud computing and data-driven applications, it is crucial to protect sensitive information to maintain data privacy, ensuring truly reliable systems. As a result, preserving privacy in deep learning systems has become a…

Computer Vision and Pattern Recognition · Computer Science 2024-04-10 Fabian Perez , Jhon Lopez , Henry Arguello

Recent studies have demonstrated that machine learning approaches like deep neural networks (DNNs) are easily fooled by adversarial attacks. Subtle and imperceptible perturbations of the data are able to change the result of deep neural…

Machine Learning · Computer Science 2020-02-25 Negin Entezari , Evangelos E. Papalexakis

Deep neural networks (DNNs) have achieved great success in solving a variety of machine learning (ML) problems, especially in the domain of image recognition. However, recent research showed that DNNs can be highly vulnerable to…

Computer Vision and Pattern Recognition · Computer Science 2017-05-09 Nilaksh Das , Madhuri Shanbhogue , Shang-Tse Chen , Fred Hohman , Li Chen , Michael E. Kounavis , Duen Horng Chau

Massive human-related data is collected to train neural networks for computer vision tasks. A major conflict is exposed relating to software engineers between better developing AI systems and distancing from the sensitive training data. To…

Computer Vision and Pattern Recognition · Computer Science 2023-06-07 Fusheng Hao , Fengxiang He , Yikai Wang , Fuxiang Wu , Jing Zhang , Jun Cheng , Dacheng Tao

In this paper, we propose a novel defensive transformation that enables us to maintain a high classification accuracy under the use of both clean images and adversarial examples for adversarially robust defense. The proposed transformation…

Computer Vision and Pattern Recognition · Computer Science 2020-10-05 MaungMaung AprilPyone , Hitoshi Kiya

We propose an image identification scheme for double-compressed encrypted JPEG images that aims to identify encrypted JPEG images that are generated from an original JPEG image. To store images without any visual sensitive information on…

Image and Video Processing · Electrical Eng. & Systems 2020-02-19 Kenta Iida , Hitoshi Kiya

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 the era of data-driven decision-making, ensuring the privacy and security of shared data is paramount across various domains. Applying existing deep neural networks (DNNs) to encrypted data is critical and often compromises performance,…

Cryptography and Security · Computer Science 2025-01-28 Al Amin , Kamrul Hasan , Sharif Ullah , Liang Hong

Deep Neural Network (DNN) has been showing great potential in kinds of real-world applications such as fraud detection and distress prediction. Meanwhile, data isolation has become a serious problem currently, i.e., different parties cannot…

Machine Learning · Computer Science 2020-03-13 Longfei Zheng , Chaochao Chen , Yingting Liu , Bingzhe Wu , Xibin Wu , Li Wang , Lei Wang , Jun Zhou , Shuang Yang

With the increasing prevalence of cloud computing platforms, ensuring data privacy during the cloud-based image related services such as classification has become crucial. In this study, we propose a novel privacypreserving image…

Computer Vision and Pattern Recognition · Computer Science 2023-10-20 Jun Liu , Jiantao Zhou , Jinyu Tian , Weiwei Sun

With the fast evolution of digital data exchange and increased usage of multi media images, it is essential to protect the confidential image data from unauthorized access. In natural images the values and position of the neighbouring…

Cryptography and Security · Computer Science 2012-02-23 S. Rakesh , Ajitkumar A Kaller , B. C. Shadakshari , B. Annappa

Applying encryption technology to image retrieval can ensure the security and privacy of personal images. The related researches in this field have focused on the organic combination of encryption algorithm and artificial feature…

Multimedia · Computer Science 2022-08-26 Zhixun Lu , Qihua Feng , Peiya Li

In recent years, several encryption algorithms have been proposed to protect digital images from cryptographic attacks. These encryption algorithms typically use a relatively small key space and therefore, provide safe, especially if they…

Cryptography and Security · Computer Science 2012-09-24 Ahmed Bashir Abugharsa , Abd Samad Bin Hasan Basari , Hamida Almangush

Conventional adversarial defenses reduce classification accuracy whether or not a model is under attacks. Moreover, most of image processing based defenses are defeated due to the problem of obfuscated gradients. In this paper, we propose a…

Machine Learning · Computer Science 2020-05-19 MaungMaung AprilPyone , Hitoshi Kiya

Inverting visual representations within deep neural networks (DNNs) presents a challenging and important problem in the field of security and privacy for deep learning. The main goal is to invert the features of an unidentified target image…

Computer Vision and Pattern Recognition · Computer Science 2024-12-17 Sai Qian Zhang , Ziyun Li , Chuan Guo , Saeed Mahloujifar , Deeksha Dangwal , Edward Suh , Barbara De Salvo , Chiao Liu

In this paper, two image encryption schemes are proposed for grayscale and color images. The two encryption schemes are based on dividing each image into blocks of different sizes. In the first scheme, the two dimension ($2$D) input image…

Cryptography and Security · Computer Science 2018-02-22 Omar Reyad , M. A. Mofaddel , W. M. Abd-Elhafiez , Mohamed Fathy