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Secure covert communication in hostile environments requires simultaneously achieving invisibility, provable security guarantees, and robustness against informed adversaries. This paper presents a novel hybrid steganographic framework that…

Cryptography and Security · Computer Science 2025-07-08 Obinna Omego , Michal Bosy

One of the applications of quantum technology is to use quantum states and measurements to communicate which offers more reliable security promises. Quantum data hiding, which gives the source party the ability of sharing data among…

Quantum Physics · Physics 2018-04-06 Xingyao Wu , Jianxin Chen

Semantic communication (SemCom) is regarded as a promising and revolutionary technology in 6G, aiming to transcend the constraints of ``Shannon's trap" by filtering out redundant information and extracting the core of effective data.…

Cryptography and Security · Computer Science 2025-03-27 Rui Meng , Song Gao , Dayu Fan , Haixiao Gao , Yining Wang , Xiaodong Xu , Bizhu Wang , Suyu Lv , Zhidi Zhang , Mengying Sun , Shujun Han , Chen Dong , Xiaofeng Tao , Ping Zhang

A covert communication system under block fading channels is considered where users experience uncertainty about their channel knowledge. The transmitter seeks to hide the covert communication to a private user by exploiting a legitimate…

Information Theory · Computer Science 2017-03-08 Khurram Shahzad , Xiangyun Zhou , Shihao Yan

In many recent years, the programming world has been introduced about a new programming language for designing websites, it is CSS that can be be used together with HTML to develop a web interface. And now, these two programming languages…

Cryptography and Security · Computer Science 2012-01-11 Herman Kabetta , B. Yudi Dwiandiyanta , Suyoto

A crypto system can be used to encrypt messages sent between two communicating parties so that an eavesdropper who overhears the encrypted messages will not be able to decode them. The paper mainly concentrates on the method in which the…

Cryptography and Security · Computer Science 2011-09-23 Debajyoti Mukhopadhyay , Animesh Mukherjee , Surjya Ghosh , Sudipto Biswas , Poulami Chakraborty

We analyze a two-receiver binary-input discrete memoryless broadcast channel, in which the transmitter communicates a common message simultaneously to both receivers and a covert message to only one of them. The unintended recipient of the…

Information Theory · Computer Science 2018-08-30 Keerthi Suria Kumar Arumugam , Matthieu R. Bloch

Steganography, the art of information hiding, has continually evolved across visual, auditory and linguistic domains, adapting to the ceaseless interplay between steganographic concealment and steganalytic revelation. This study seeks to…

Robotics · Computer Science 2025-01-09 Ching-Chun Chang , Yijie Lin , Isao Echizen

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 paper, we propose a cooperative approach to improve the security of both primary and secondary systems in cognitive radio multicast communications. During their access to the frequency spectrum licensed to the primary users, the…

Information Theory · Computer Science 2017-03-02 Van-Dinh Nguyen , Trung Q. Duong , Oh-Soon Shin , Arumugam Nallanathan , George K. Karagiannidis

In this paper, a novel steganographic scheme based on chaotic iterations is proposed. This research work takes place into the information hiding security framework. The applications for anonymity and privacy through the Internet are…

Cryptography and Security · Computer Science 2012-02-27 Jacques M. Bahi , Jean-François Couchot , Nicolas Friot , Christophe Guyeux

With data privacy becoming more of a necessity than a luxury in today's digital world, research on more robust models of privacy preservation and information security is on the rise. In this paper, we take a look at Natural Language…

Computation and Language · Computer Science 2022-03-15 Geetanjali Bihani , Julia Taylor Rayz

This paper investigates how smart devices covertly capture private conversations and discusses in more in-depth the implications of this for youth privacy. Using a structured review guided by the PRISMA methodology, the analysis focuses on…

Cryptography and Security · Computer Science 2025-12-23 Austin Shouli , Yulia Bobkova , Ajay Kumar Shrestha

This paper considers an information theoretic model of secure integrated sensing and communication, represented as a wiretap channel with action dependent states. This model allows securing part of a transmitted message against a sensed…

Information Theory · Computer Science 2024-09-10 Truman Welling , Onur Günlü , Aylin Yener

The paper presents TrustMAS - Trusted Communication Platform for Multi-Agent Systems, which provides trust and anonymity for mobile agents. The platform includes anonymous technique based on random-walk algorithm for providing general…

Cryptography and Security · Computer Science 2008-09-01 Krzysztof Szczypiorski , Igor Margasinski , Wojciech Mazurczyk , Krzysztof Cabaj , Pawel Radziszewski

Steganography is the art and science of covert writing, with a broad range of applications interwoven within the realm of cybersecurity. As artificial intelligence continues to evolve, its ability to synthesise realistic content emerges as…

Cryptography and Security · Computer Science 2025-04-22 Ching-Chun Chang , Isao Echizen

Information-theoretic secrecy, in particular the wiretap channel formulation, provides protection against interception of a message by adversary Eve and has been widely studied in the last two decades. In contrast, covert communications…

Cryptography and Security · Computer Science 2019-07-17 Moslem Forouzesh , Paeiz Azmi , Nader Mokari , Kai Kit Wong , Dennis Goeckel

Deep learning draws heavily on the latest progress in semantic communications. The present paper aims to examine the security aspect of this cutting-edge technique from a novel shuffling perspective. Our goal is to improve upon the…

Cryptography and Security · Computer Science 2025-07-11 Fupei Chen , Liyao Xiang , Haoxiang Sun , Hei Victor Cheng , Kaiming Shen

Introduction: The use of chatbots is becoming increasingly important across various aspects of daily life. However, the privacy concerns associated with these communications have not yet been thoroughly addressed. The aim of this study was…

Human-Computer Interaction · Computer Science 2025-08-12 Julia Ive , Vishal Yadav , Mariia Ignashina , Matthew Rand , Paulina Bondaronek

To circumvent the unbridled and ever-encroaching surveillance and censorship in cyberspace, steganography has garnered attention for its ability to hide private information in innocent-looking carriers. Current provably secure steganography…

Cryptography and Security · Computer Science 2024-11-26 Minhao Bai , Jinshuai Yang , Kaiyi Pang , Xin Xu , Zhen Yang , Yongfeng Huang