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Monitoring Large Language Model (LLM) outputs is crucial for mitigating risks from misuse and misalignment. However, LLMs could evade monitoring through steganography: Encoding hidden information within seemingly benign generations. In this…

Cryptography and Security · Computer Science 2025-10-16 Artur Zolkowski , Kei Nishimura-Gasparian , Robert McCarthy , Roland S. Zimmermann , David Lindner

Transmitting images for communication on social networks has become routine, which is helpful for covert communication. The traditional steganography algorithm is unable to successfully convey secret information since the social network…

Multimedia · Computer Science 2023-04-27 Xiaolong Duan , Bin Li , Zhaoxia Yin , Xinpeng Zhang , Bin Luo

Informally, steganography is the process of exchanging a secret message between two communicating entities so that an eavesdropper may not know that a message has been sent. After a review of some steganographic systems, we found that these…

Cryptography and Security · Computer Science 2015-06-16 Fabrice P. Tachago , Stephane G. R. Ekodeck , Rene Ndoundam

In today's digital age, the internet is essential for communication and the sharing of information, creating a critical need for sophisticated data security measures to prevent unauthorized access and exploitation. Cryptography encrypts…

Cryptography and Security · Computer Science 2024-04-12 Anamitra Maiti , Subham Laha , Rishav Upadhaya , Soumyajit Biswas , Vikas Chaudhary , Biplab Kar , Nikhil Kumar , Jaydip Sen

Image steganography is the process of concealing secret information in images through imperceptible changes. Recent work has formulated this task as a classic constrained optimization problem. In this paper, we argue that image…

Image and Video Processing · Electrical Eng. & Systems 2023-03-30 Xiangyu Chen , Varsha Kishore , Kilian Q Weinberger

Hiding and securing the secret digital information and data that are transmitted over the internet is of widespread and most challenging interest. This paper presents a new idea of robust steganography using bitwise-XOR operation between…

Cryptography and Security · Computer Science 2013-12-20 Chandranath Adak

In the era of Information Technology, cyber-crime has always been a worrying issue for online users. Phishing, social engineering, and third party attacks have made people reluctant to share their personal information, even with trusted…

Cryptography and Security · Computer Science 2016-07-28 Min Yang Lee , Vahab Iranmanesh , Juan C. Quiroz

On the rise of the Internet, digital data became openly public which has driven IT industries to pay special consideration to data confidentiality. At present, two main techniques are being used: Cryptography and Steganography. In effect,…

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

Traditional adaptive steganography is a technique used for covert communication with high security, but it is invalid in the case of stego images are sent to legal receivers over networks which is lossy, such as JPEG compression of…

Multimedia · Computer Science 2021-10-19 Zhaoxia Yin , Longfei Ke

Image steganography is the technique of embedding secret information within images. The development of deep learning has led to significant advances in this field. However, existing methods often struggle to balance image quality, embedding…

Computer Vision and Pattern Recognition · Computer Science 2024-11-12 Abhinav Kumar , Pratham Singla , Aayan Yadav

With the growth of communication over computer networks, how to maintain the confidentiality and security of transmitted information have become some of the important issues. In order to transfer data securely to the destination without…

Multimedia · Computer Science 2016-04-05 Sanjeeb Kumar Behera , Minati Mishra

In this work, we propose StegGuard, a novel fingerprinting mechanism to verify the ownership of the suspect pre-trained encoder using steganography. A critical perspective in StegGuard is that the unique characteristic of the transformation…

Cryptography and Security · Computer Science 2023-10-06 Xingdong Ren , Tianxing Zhang , Hanzhou Wu , Xinpeng Zhang , Yinggui Wang , Guangling Sun

Linear regression is a fundamental and primitive problem in supervised machine learning, with applications ranging from epidemiology to finance. In this work, we propose methods for speeding up distributed linear regression. We do so by…

Information Theory · Computer Science 2024-04-02 Neophytos Charalambides , Hessam Mahdavifar , Mert Pilanci , Alfred O. Hero

Hiding information in network traffic may lead to leakage of confidential information. In this paper we introduce a new steganographic system: the PadSteg (Padding Steganography). To authors' best knowledge it is the first information…

Cryptography and Security · Computer Science 2010-07-06 Bartosz Jankowski , Wojciech Mazurczyk , Krzysztof Szczypiorski

Information security has become a cause of concern because of the electronic eavesdropping. Capacity, robustness and invisibility are important parameters in information hiding and are quite difficult to achieve in a single algorithm. This…

Image steganography is the art and science of using images as cover for covert communications. With the development of neural networks, traditional image steganography is more likely to be detected by deep learning-based steganalysis. To…

Computer Vision and Pattern Recognition · Computer Science 2022-03-10 Donghui Hu , Yu Zhang , Cong Yu , Jian Wang , Yaofei Wang

Steganography is the art and science of writing hidden messages in such a way that no one apart from the intended recipient knows of the existence of the message. In today's world, it is widely used in order to secure the information. In…

Cryptography and Security · Computer Science 2011-08-11 Tolga Mataracioglu , Unal Tatar

With the rapid progress of LLMs, high quality generative text has become widely available as a cover for text steganography. However, prevailing methods rely on hand-crafted or pre-specified strategies and struggle to balance efficiency,…

Cryptography and Security · Computer Science 2025-10-09 Jiuan Zhou , Yu Cheng , Yuan Xie , Zhaoxia Yin

Semantic communication (SemCom), as a novel paradigm for future communication systems, has recently attracted much attention due to its superiority in communication efficiency. However, similar to traditional communication, it also suffers…

Signal Processing · Electrical Eng. & Systems 2026-03-26 Song Gao , Rui Meng , Xiaodong Xu , Haixiao Gao , Yiming Liu , Chenyuan Feng , Ping Zhang , Tony Q. S. Quek , Dusit Niyato

This paper is to create a practical steganographic implementation for 4-bit images.The proposed technique converts 4 bit image into 4 shaded Gray Scale image. This image will be act as reference image to hide the text. Using this grey scale…

Multimedia · Computer Science 2014-08-17 Samir Kumar Bandyopadhyay , Indra Kanta Maitra
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