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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

Anonymity has become a significant issue in security field by recent advances in information technology and internet. The main objective of anonymity is hiding and concealing entities privacy inside a system. Many methods and protocols have…

Cryptography and Security · Computer Science 2015-10-06 Morteza Yousefi Kharaji , Fatemeh Salehi Rizi

The security of quantum exam [Phys. Lett. A 350 (2006) 174] is analyzed and it is found that this protocol is secure for any eavesdropper except for the "students" who take part in the exam. Specifically, any student can steal other…

Quantum Physics · Physics 2007-05-23 Fei Gao , Qiao-Yan Wen , Fu-Chen Zhu

We propose a light-weight client-server model of communication between existing implementations of different program analyses. The communication is on-line and anonymous which means that all analyses simultaneously analyse the same program…

Programming Languages · Computer Science 2015-04-30 Marek Trtik

Acquiring reviewers for academic submissions is a challenging recommendation scenario. Recent graph learning-driven models have made remarkable progress in the field of recommendation, but their performance in the academic reviewer…

Information Retrieval · Computer Science 2024-07-31 Weibin Liao , Yifan Zhu , Yanyan Li , Qi Zhang , Zhonghong Ou , Xuesong Li

As the issues of privacy and trust are receiving increasing attention within the research community, various attempts have been made to anonymize textual data. A significant subset of these approaches incorporate differentially private…

Cryptography and Security · Computer Science 2022-05-05 Justus Mattern , Benjamin Weggenmann , Florian Kerschbaum

Cross-silo federated learning allows multiple organizations to collaboratively train machine learning models without sharing raw data, but client updates can still leak sensitive information through inference attacks. Secure aggregation…

Cryptography and Security · Computer Science 2026-02-26 Delio Jaramillo Velez , Gergely Biczok , Alexandre Graell i Amat , Johan Ostman , Balazs Pejo

Secure aggregation is a cryptographic protocol that securely computes the aggregation of its inputs. It is pivotal in keeping model updates private in federated learning. Indeed, the use of secure aggregation prevents the server from…

Machine Learning · Computer Science 2022-09-07 Dario Pasquini , Danilo Francati , Giuseppe Ateniese

Proving only over source code that programs do not leak sensitive data leaves a gap between reasoning and reality that can only be filled by accounting for the behaviour of the compiler. Furthermore, software does not always have the luxury…

Programming Languages · Computer Science 2023-06-22 Robert Sison , Toby Murray

Authorship obfuscation techniques hold the promise of helping people protect their privacy in online communications by automatically rewriting text to hide the identity of the original author. However, obfuscation has been evaluated in…

Computation and Language · Computer Science 2024-05-17 Calvin Bao , Marine Carpuat

For sensitive text data to be shared among NLP researchers and practitioners, shared documents need to comply with data protection and privacy laws. There is hence a growing interest in automated approaches for text anonymization. However,…

Computation and Language · Computer Science 2021-03-18 Maximilian Mozes , Bennett Kleinberg

We propose a self-stabilizing algorithm for computing a maximal matching in an anonymous network. The complexity is $O(n^3)$ moves with high probability, under the adversarial distributed daemon. In this algorithm, each node can determine…

Distributed, Parallel, and Cluster Computing · Computer Science 2016-11-18 Johanne Cohen , Jonas Lefèvre , Khaled Maâmra , Laurence Pilard , Devan Sohier

Web security has become an important subject; many companies and organizations are becoming more security conscious as they build web applications to render online services and increase web presence. Unfortunately, many of these web…

Cryptography and Security · Computer Science 2018-11-09 Daniel Omeiza , Jemima Owusu-Tweneboah

Penetration testing (pentesting) involves performing a controlled attack on a computer system in order to assess it's security. Although an effective method for testing security, pentesting requires highly skilled practitioners and…

Cryptography and Security · Computer Science 2019-05-16 Jonathon Schwartz , Hanna Kurniawati

With the recent prevalence of remote education, academic assessments are often conducted online, leading to further concerns surrounding assessment misconducts. This paper investigates the potentials of online assessment misconduct…

Computers and Society · Computer Science 2022-02-01 Leslie Ching Ow Tiong , HeeJeong Jasmine Lee , Kai Li Lim

From buying books to finding the perfect partner, we share our most intimate wants and needs with our favourite online systems. But how far should we accept promises of privacy in the face of personal profiling? In particular we ask how can…

Cryptography and Security · Computer Science 2016-08-22 Pól Mac Aonghusa , Douglas J. Leith

Neural Information Retrieval (NIR) has significantly improved upon heuristic-based Information Retrieval (IR) systems. Yet, failures remain frequent, the models used often being unable to retrieve documents relevant to the user's query. We…

Information Retrieval · Computer Science 2024-09-26 Hippolyte Gisserot-Boukhlef , Manuel Faysse , Emmanuel Malherbe , Céline Hudelot , Pierre Colombo

Anonymizing sensitive information in user text is essential for privacy, yet existing methods often apply uniform treatment across attributes, which can conflict with communicative intent and obscure necessary information. This is…

Cryptography and Security · Computer Science 2026-01-09 Weihao Shen , Yaxin Xu , Shuang Li , Wei Chen , Yuqin Lan , Meng Yuan , Fuzhen Zhuang

Transparency protocols are protocols whose actions can be publicly monitored by observers (such observers may include regulators, rights advocacy groups, or the general public). The observed actions are typically usages of private keys such…

Cryptography and Security · Computer Science 2023-04-18 Vincent Cheval , José Moreira , Mark Ryan

Anonymous credentials (ACs) are a crucial cryptographic tool for privacy-preserving authentication in decentralized networks, allowing holders to prove eligibility without revealing their identity. However, a major limitation of standard…

Cryptography and Security · Computer Science 2025-12-24 Bin Xie , Rui Song , Xuyuan Cai