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Unrestricted adversarial attacks typically manipulate the semantic content of an image (e.g., color or texture) to create adversarial examples that are both effective and photorealistic, demonstrating their ability to deceive human…

Computer Vision and Pattern Recognition · Computer Science 2023-11-30 Zhaoyu Chen , Bo Li , Shuang Wu , Kaixun Jiang , Shouhong Ding , Wenqiang Zhang

Adversarial patch attacks pose a significant threat to the practical deployment of deep learning systems. However, existing research primarily focuses on image pre-processing defenses, which often result in reduced classification accuracy…

Computer Vision and Pattern Recognition · Computer Science 2024-02-12 Nandish Chattopadhyay , Amira Guesmi , Muhammad Shafique

Currently, sample-specific backdoor attacks (SSBAs) are the most advanced and malicious methods since they can easily circumvent most of the current backdoor defenses. In this paper, we reveal that SSBAs are not sufficiently stealthy due to…

Cryptography and Security · Computer Science 2025-03-17 Mingyan Zhu , Yiming Li , Junfeng Guo , Tao Wei , Shu-Tao Xia , Zhan Qin

As a result of continuing advances in computer capabilities, it is becoming increasingly difficult to distinguish between humans and computers in the digital world. We propose using the fundamental human ability to distinguish between…

Cryptography and Security · Computer Science 2019-07-09 Nasser Mohammed Al-Fannah

Traditional CAPTCHA (Completely Automated Public Turing Test to Tell Computers and Humans Apart) schemes are increasingly vulnerable to automated attacks powered by deep neural networks (DNNs). Existing adversarial attack methods often rely…

Computer Vision and Pattern Recognition · Computer Science 2025-07-02 Xia Du , Xiaoyuan Liu , Jizhe Zhou , Zheng Lin , Chi-man Pun , Cong Wu , Tao Li , Zhe Chen , Wei Ni , Jun Luo

We are interested in investigating the security of source encryption with a symmetric key under side-channel attacks. In this paper, we propose a general framework of source encryption with a symmetric key under the side-channel attacks,…

Information Theory · Computer Science 2022-05-05 Yasutada Oohama , Bagus Santoso

With the significant advances in deep generative models for image and video synthesis, Deepfakes and manipulated media have raised severe societal concerns. Conventional machine learning classifiers for deepfake detection often fail to cope…

Computer Vision and Pattern Recognition · Computer Science 2024-10-14 Aakash Varma Nadimpalli , Ajita Rattani

This report gives a novel technique of image encryption and authentication by combining elements of Visual Cryptography and Public Key Cryptography. A prominent attack involving generation of fake shares to cheat honest users has been…

Cryptography and Security · Computer Science 2017-11-27 Rahul Saranjame , Manik Lal Das

Watermarking combines an imperceptible change to an input image that will trigger a detector, to assert provenance and protect intellectual property. The literature has shown great interest in attacks on watermarking schemes: attackers are…

Cryptography and Security · Computer Science 2026-05-19 Maria Bulychev , Neil G. Marchant , Benjamin I. P. Rubinstein

Adversarial example attacks have emerged as a critical threat to machine learning. Adversarial attacks in image classification abuse various, minor modifications to the image that confuse the image classification neural network -- while the…

Cryptography and Security · Computer Science 2025-02-27 Anthony Etim , Jakub Szefer

The main theme of this application is to provide an algorithm color image watermark to manage the attacks such as rotation, scaling and translation. In the existing watermarking algorithms, those exploited robust features are more or less…

Cryptography and Security · Computer Science 2012-10-23 J. Veerappan , G. Pitchammal

Content scanning systems employ perceptual hashing algorithms to scan user content for illegal material, such as child pornography or terrorist recruitment flyers. Perceptual hashing algorithms help determine whether two images are visually…

Cryptography and Security · Computer Science 2022-12-09 Ashish Hooda , Andrey Labunets , Tadayoshi Kohno , Earlence Fernandes

Adversarial input image perturbation attacks have emerged as a significant threat to machine learning algorithms, particularly in image classification setting. These attacks involve subtle perturbations to input images that cause neural…

Computer Vision and Pattern Recognition · Computer Science 2025-02-27 Anthony Etim , Jakub Szefer

Adversarial images are created with the intention of causing an image classifier to produce a misclassification. In this paper, we propose that adversarial images should be evaluated based on semantic mismatch, rather than label mismatch,…

Computer Vision and Pattern Recognition · Computer Science 2022-12-14 Zhengyu Zhao , Nga Dang , Martha Larson

Side-channel attacks on memory (SCAM) exploit unintended data leaks from memory subsystems to infer sensitive information, posing significant threats to system security. These attacks exploit vulnerabilities in memory access patterns, cache…

Cryptography and Security · Computer Science 2025-05-09 MD Mahady Hassan , Shanto Roy , Reza Rahaeimehr

Adversarial attacks play an essential role in understanding deep neural network predictions and improving their robustness. Existing attack methods aim to deceive convolutional neural network (CNN)-based classifiers by manipulating RGB…

Computer Vision and Pattern Recognition · Computer Science 2021-02-22 Buu Phan , Fahim Mannan , Felix Heide

A recent study has found that malicious bots generated nearly a quarter of overall website traffic in 2019 [100]. These malicious bots perform activities such as price and content scraping, account creation and takeover, credit card fraud,…

Cryptography and Security · Computer Science 2022-01-25 Meriem Guerar , Luca Verderame , Mauro Migliardi , Francesco Palmieri , Alessio Merlo

Robust classification is essential in tasks like autonomous vehicle sign recognition, where the downsides of misclassification can be grave. Adversarial attacks threaten the robustness of neural network classifiers, causing them to…

Computer Vision and Pattern Recognition · Computer Science 2022-10-03 Andrew Wang , Wyatt Mayor , Ryan Smith , Gopal Nookula , Gregory Ditzler

With the rapid development of deep neural networks(DNNs), many robust blind watermarking algorithms and frameworks have been proposed and achieved good results. At present, the watermark attack algorithm can not compete with the watermark…

Multimedia · Computer Science 2023-06-23 Xinyu Li

Backdoor attacks pose a significant threat to the integrity of text classification models used in natural language processing. While several dirty-label attacks that achieve high attack success rates (ASR) have been proposed, clean-label…

Cryptography and Security · Computer Science 2025-08-25 Onur Alp Kirci , M. Emre Gursoy
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