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Invisible watermarking is essential for safeguarding digital content, enabling copyright protection and content authentication. However, existing watermarking methods fall short in robustness against regeneration attacks. In this paper, we…

Cryptography and Security · Computer Science 2024-10-29 Yiyang Guo , Ruizhe Li , Mude Hui , Hanzhong Guo , Chen Zhang , Chuangjian Cai , Le Wan , Shangfei Wang

In an era where global connectivity has become critical, satellite communication is essential for businesses, governments, and individuals. Widely used services with satellite communication such as climate change monitoring, military…

Cryptography and Security · Computer Science 2024-10-29 Farrukh Bin Rashid , Windhya Rankothge , Somayeh Sadeghi , Hesamodin Mohammadian , Ali Ghorbani

We study the encryption and decryption processes of color images using the synchronization of polarization dynamics in a free-running vertical-cavity surface-emitting laser (VCSEL). Here, we consider a bidirectional master-slave…

Optics · Physics 2018-10-16 A. Roy , A. P. Misra , S. Banerjee

Image applications have been increasing in recent years.Encryption is used to provide the security needed for image applications. In this paper, we classify various image encryption schemes and analyze them with respect to various…

Cryptography and Security · Computer Science 2011-12-06 Jolly Shah , Vikas Saxena

Coding/decoding algorithms are of great importance to help in improving information security since information security is a more significiant problem in recent years. In this paper we introduce two new coding/decoding algorithms using…

Cryptography and Security · Computer Science 2021-01-12 Sümeyra UçAr , Nihal Taş , Nihal Yilmaz Özgür

This paper focuses on investigation of confidential documents leaks in the form of screen photographs. Proposed approach does not try to prevent leak in the first place but rather aims to determine source of the leak. Method works by…

Cryptography and Security · Computer Science 2023-04-26 Aleksey Yakushev , Yury Markin , Dmitry Obydenkov , Alexander Frolov , Stas Fomin , Manuk Akopyan , Alexander Kozachok , Arthur Gaynov

As recent text-conditioned diffusion models have enabled the generation of high-quality images, concerns over their potential misuse have also grown. This issue is critical in the medical domain, where text-conditioned generated medical…

Computer Vision and Pattern Recognition · Computer Science 2025-09-03 Chanyoung Kim , Dayun Ju , Jinyeong Kim , Woojung Han , Roberto Alcover-Couso , Seong Jae Hwang

In the cancerology domain, we were brought to make periodic mammography images to monitor tumor patients. Oracle Database Management system (DBMS) is a solution to manage these images with patient's data recorder. Knowing the large size of…

Cryptography and Security · Computer Science 2014-12-09 H. Ouahi , M. El Hajji , K. Afdel

In this paper is proposed a novel steganographic scheme based on chaotic iterations. This research work takes place into the information hiding security fields. We show that the proposed scheme is stego-secure, which is the highest level of…

Cryptography and Security · Computer Science 2011-12-19 Nicolas Friot , Christophe Guyeux , Jacques M. Bahi

Medical images are commonly stored in digital media and transmitted via Internet for certain uses. If a medical information image alters, this can lead to a wrong diagnosis which may create a serious health problem. Moreover, medical images…

Cryptography and Security · Computer Science 2013-02-18 Muhammad Nazeer , Bibi Nargis , Yasir Mehmood Malik , Dai-Gyoung Kim

In this paper we propose a multi-map orbit hopping chaotic stream cipher that utilizes the idea of spread spectrum mechanism for secure digital communications and fundamental chaos characteristics of mixing, unpredictable, and extremely…

Cryptography and Security · Computer Science 2007-05-23 Xiaowen Zhang , Li Shu , Ke Tang

Chaotic maps are very important for establishing chaos-based image encryption systems. This paper introduces a coupling chaotic system based on a certain unit transform, which can combine any two 1D chaotic maps to generate a new one with…

Cryptography and Security · Computer Science 2019-09-19 Guozhen Hu , Baobin Li

Digital multimedia watermarking technology was suggested in the last decade to embed copyright information in digital objects such images, audio and video. However, the increasing use of relational database systems in many real-life…

Databases · Computer Science 2013-04-29 Jun Ziang Pinn , A. Fr. Zung

Optical chaos is a topic of current research characterized by high-dimensional nonlinearity which is attributed to the delay-induced dynamics, high bandwidth and easy modular implementation of optical feedback. In light of these facts,…

Optics · Physics 2011-03-01 S. Banerjee , L. Rondoni , S. Mukhopadhyay , A. P. Misra

This research proposes a decentralized and cryptographically secure framework to address the most acute issues of privacy, data security, and protection in the ecosystem of medical insurance claim processing. The scope of this study focuses…

Cryptography and Security · Computer Science 2025-11-12 Diya Mamoria , Harshit Jain , Aswani Kumar Cherukuri

We propose a hybrid technique for image encryption which employs the concept of carrier image and SCAN patterns generated by SCAN methodology. Although it involves existing method like SCAN methodology, the novelty of the work lies in…

Cryptography and Security · Computer Science 2010-03-08 Panduranga H. T , Naveen Kumar S. K

Machine Learning on Big Data gets more and more attention in various fields. Even so privacy-preserving techniques become more important, even necessary due to legal regulations such as the General Data Protection Regulation (GDPR). On the…

Cryptography and Security · Computer Science 2022-01-28 Jasmin Zalonis , Frederik Armknecht , Björn Grohmann , Manuel Koch

Two different kinds of synchronization have been applied to cryptography: Synchronization of chaotic maps by one common external signal and synchronization of neural networks by mutual learning. By combining these two mechanisms, where the…

Statistical Mechanics · Physics 2009-11-10 Rachel Mislovaty , Einat Klein , Ido Kanter , Wolfgang Kinzel

Digital watermarking is the act of hiding information in multimedia data, for the purposes of content protection or authentication. In ordinary digital watermarking, the secret information is embedded into the multimedia data (cover data)…

Cryptography and Security · Computer Science 2014-10-14 Tanmoy Sarkar , Sugata Sanyal

With the explosive growth of internet and the fast communication techniques in recent years the security and the confidentiality of the sensitive data has become of prime and supreme importance and concern. To protect this data from…

Cryptography and Security · Computer Science 2012-07-04 Harshavardhan Kayarkar , Sugata Sanyal