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Network steganography and covert communication channels have been studied extensively in the past. However, prior works offer minimal practical use for their proposed techniques and are limited to specific use cases and network protocols.…

Cryptography and Security · Computer Science 2025-11-11 Sirus Shahini , Robert Ricci

Unlike hiding bit-level messages, hiding image-level messages is more challenging, which requires large capacity, high imperceptibility, and high security. Although recent advances in hiding image-level messages have been remarkable,…

Computer Vision and Pattern Recognition · Computer Science 2023-05-12 Junxue Yang , Xin Liao

Due to the widespread of advanced digital imaging devices, forgery of digital images became more serious attack patterns. In this attack scenario, the attacker tries to manipulate the digital image to conceal some meaningful information of…

Cryptography and Security · Computer Science 2021-10-20 Ahmed M. Nagm , Mohamed Torky , Mohammed Mahmoud Abo Ghazala , Hosam Eldin Fawzan Sayed

We propose adversarial embedding, a new steganography and watermarking technique that embeds secret information within images. The key idea of our method is to use deep neural networks for image classification and adversarial attacks to…

Cryptography and Security · Computer Science 2019-12-04 Salah Ghamizi , Maxime Cordy , Mike Papadakis , Yves Le Traon

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

This work proposes a high-capacity scheme for separable reversible data hiding in encrypted images. At the sender side, the original uncompressed image is encrypted using an encryption key. One or several data hiders use the MSB of some…

Cryptography and Security · Computer Science 2016-12-14 M. Hassan Najafi , David J. Lilja

Deep Neural Networks (DNNs) can handle increasingly complex tasks, albeit they require rapidly expanding training datasets. Collecting data from platforms with user-generated content, such as social networks, has significantly eased the…

Cryptography and Security · Computer Science 2024-09-04 Jonathan Knauer , Phillip Rieger , Hossein Fereidooni , Ahmad-Reza Sadeghi

Effectively leveraging multimodal information from social media posts is essential to various downstream tasks such as sentiment analysis, sarcasm detection or hate speech classification. Jointly modeling text and images is challenging…

Computation and Language · Computer Science 2024-02-06 Danae Sánchez Villegas , Daniel Preoţiuc-Pietro , Nikolaos Aletras

While disk encryption is suitable for use in most situations where confidentiality of disks is required, stronger guarantees are required in situations where adversaries may employ coercive tactics to gain access to cryptographic keys.…

Cryptography and Security · Computer Science 2021-10-12 Kyle Fredrickson , Austen Barker , Darrell D. E. Long

With the rapid increase in online photo sharing activities, image obfuscation algorithms become particularly important for protecting the sensitive information in the shared photos. However, existing image obfuscation methods based on…

Cryptography and Security · Computer Science 2018-11-20 Sen Liu , Jianxin Lin , Zhibo Chen

As image recognition models become more prevalent, scalable coding methods for machines and humans gain more importance. Applications of image recognition models include traffic monitoring and farm management. In these use cases, the…

Computer Vision and Pattern Recognition · Computer Science 2024-06-18 Takahiro Shindo , Taiju Watanabe , Yui Tatsumi , Hiroshi Watanabe

Why do Social Media Corporations (SMCs) engage in state-linked information operations? Social media can significantly influence the global political landscape, allowing governments and other political entities to engage in concerted…

Social and Information Networks · Computer Science 2024-01-05 Nihat Mugurtay , Umut Duygu , Onur Varol

We propose an end-to-end image compression and analysis model with Transformers, targeting to the cloud-based image classification application. Instead of placing an existing Transformer-based image classification model directly after an…

Computer Vision and Pattern Recognition · Computer Science 2021-12-20 Yuanchao Bai , Xu Yang , Xianming Liu , Junjun Jiang , Yaowei Wang , Xiangyang Ji , Wen Gao

The aim of this paper is to evaluate the security of a block-based image encryption for the vision transformer against jigsaw puzzle solver attacks. The vision transformer, a model for image classification based on the transformer…

Cryptography and Security · Computer Science 2022-02-03 Tatsuya Chuman , Hitoshi Kiya

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

Social networks like Facebook and WhatsApp have enabled users to share images with other users around the world. Along with this has come the rapid spread of misinformation. One step towards verifying the authenticity of an image is…

Image and Video Processing · Electrical Eng. & Systems 2021-05-07 Brian C Hosler , Matthew C Stamm

Currently, cryptography is in wide use as it is being exploited in various domains from data confidentiality to data integrity and message authentication. Basically, cryptography shuffles data so that they become unreadable by unauthorized…

Cryptography and Security · Computer Science 2012-12-11 Youssef Bassil

The aim of this article is to provide an understanding of social networks as a useful addition to the standard tool-box of techniques used by system designers. To this end, we give examples of how data about social links have been collected…

Social and Information Networks · Computer Science 2017-07-18 Changtao Zhong , Nishanth Sastry

Block compression is a widely used technique to compress textures in real-time graphics applications, offering a reduction in storage size. However, their storage efficiency is constrained by the fixed compression ratio, which substantially…

Image and Video Processing · Electrical Eng. & Systems 2024-10-24 Shin Fujieda , Takahiro Harada

Conventional covert image communication is assumed to transmit the message, in the securest way possible for a given payload, over lossless channels, and the associated steganographic schemes are generally vulnerable to active attacks,…

Multimedia · Computer Science 2022-12-07 Qingliang Liu , Jiangqun Ni , Weizhe Zhang , Xiangyang Luo , Jiwu Huang
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