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Data provenance analysis has been used as an assistive measure for ensuring system integrity. However, such techniques are typically reactive approaches to identify the root cause of an attack in its aftermath. This is in part due to fact…

Cryptography and Security · Computer Science 2021-06-02 Shamaria Engram , Tyler Kaczmarek , Alice Lee , David Bigelow

The Internet has undergone dramatic changes in the past 15 years, and now forms a global communication platform that billions of users rely on for their daily activities. While this transformation has brought tremendous benefits to society,…

Cryptography and Security · Computer Science 2016-08-22 Fatemeh Shirazi , Milivoj Simeonovski , Muhammad Rizwan Asghar , Michael Backes , Claudia Diaz

In practical communication systems, knowledge of channel models is often absent, and consequently, transceivers need be designed based on empirical data. In this work, we study data-driven approaches to reliably choosing decoding metrics…

Information Theory · Computer Science 2024-04-23 Jiakun Liu , Wenyi Zhang , H. Vincent Poor

Vehicular ad-hoc networks, where traffic information is distributed from many sources to many destinations, require data authentication mechanisms to detect any malicious behavior of users, such as modification or replay attacks. In this…

Cryptography and Security · Computer Science 2022-08-19 J Molina-Gil , P Caballero-Gil , C Caballero-Gil

We give a simple characterization of the functions that can be computed deterministically by anonymous processes in dynamic networks, depending on the number of leaders in the network. In addition, we provide efficient distributed…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-01-21 Giuseppe A. Di Luna , Giovanni Viglietta

Security and privacy in Vehicular Ad-hoc Networks (VANETs) mandates use of short-lived credentials (pseudonyms) and cryptographic key pairs. This implies significant computational overhead for vehicles, needing to validate often numerous…

Cryptography and Security · Computer Science 2020-01-22 Hongyu Jin , Panos Papadimitratos

Blockchain intercommunication systems enable the exchanges of messages between blockchains. This interoperability promotes innovation, unlocks liquidity and access to assets. However, blockchains are isolated systems that originally were…

Cryptography and Security · Computer Science 2022-10-25 Miguel Díaz Montiel , Rachid Guerraoui , Pierre-Louis Roman

Communication anonymity is a key requirement for individuals under targeted surveillance. Practical anonymous communications also require indistinguishability - an adversary should be unable to distinguish between anonymised and…

Cryptography and Security · Computer Science 2014-08-07 Joseph Gardiner , Shishir Nagaraja

Device-to-Device (D2D) communication is mainly launched by the transmission requirements between devices for specific applications such as Proximity Services in Long-Term Evolution Advanced (LTE-A) networks, and each application will form a…

Cryptography and Security · Computer Science 2017-04-07 Ruei-Hau Hsu , Jemin Lee , Tony Q. S. Quek , Jyh-Cheng Chen

In this paper we present first experimental results about a small group of people exchanging private and public messages in a virtual community. Our goal is the study of the cognitive network that emerges during a chat seance. We used the…

Physics and Society · Physics 2012-07-30 Andrea Guazzini , Daniele Vilone , Franco Bagnoli , Timoteo Carletti , Rosapia Lauro Grotto

Recently, permissioned blockchain has been extensively explored in various fields, such as asset management, supply chain, healthcare, and many others. Many scholars are dedicated to improving its verifiability, scalability, and performance…

Cryptography and Security · Computer Science 2023-12-14 Dong-Yang Yu , Jin Wang , Lingzhi Li , Wei Jiang , Can Liu

In this paper, we consider a multi-agent resilient consensus problem, where some of the nodes may behave maliciously. The approach is to equip all nodes with a scheme to detect neighboring nodes when they behave in an abnormal fashion. To…

Systems and Control · Electrical Eng. & Systems 2021-01-14 Liwei Yuan , Hideaki Ishii

This paper describes a new protocol for authentication in ad-hoc networks. The protocol has been designed to meet specialized requirements of ad-hoc networks, such as lack of direct communication between nodes or requirements for revocable…

Cryptography and Security · Computer Science 2007-05-23 Adam Wierzbicki , Aneta Zwierko , Zbigniew Kotulski

Vehicular Ad Hoc Networks (VANETs) are attractive scenarios that can improve the traffic situation and provide convenient services for drivers and passengers via vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I) communication.…

Cryptography and Security · Computer Science 2018-11-09 Jingwei Liu , Qin Hu , Chaoya Li , Rong Sun , Xiaojiang Du , Mohsen Guizani

A smart grid is an advanced method for supplying electricity to the consumers alleviating the limitations of the existing system. It causes frequent meter reading transmission from the end-user to the supplier. This frequent data…

Cryptography and Security · Computer Science 2020-06-12 Mohammad Saidur Rahman

Recently, Yang et al. introduced an efficient searchable encryption scheme titled "Dynamic Consensus Committee-Based for Secure Data Sharing With Authorized Multi-Receiver Searchable Encryption (DCC-SE)," published in IEEE Transactions on…

Cryptography and Security · Computer Science 2023-11-16 Zi-Yuan Liu , Raylin Tso

In this work, we study the consensus problem in which legitimate agents send their values over an undirected communication network in the presence of an unknown subset of malicious or faulty agents. In contrast to former works, we…

Systems and Control · Electrical Eng. & Systems 2025-04-11 Orhan Eren Akgün , Sarper Aydın , Stephanie Gil , Angelia Nedić

Vehicular ad hoc networks allow vehicles to connect themselves as networks so that cars could communicate with each other. This paper introduces an anonymous communication scheme providing integrity protection, multi-level privacy and…

Cryptography and Security · Computer Science 2014-10-08 Yichen Jiang , Yi Ji , Tianhua Liu

Signed social networks are widely used to model the trust relationships among online users in security-sensitive systems such as cryptocurrency trading platforms, where trust prediction plays a critical role. In this paper, we investigate…

Cryptography and Security · Computer Science 2023-07-18 Yulin Zhu , Tomasz Michalak , Xiapu Luo , Xiaoge Zhang , Kai Zhou

Multi-agent LLM systems increasingly tackle complex reasoning, yet their interaction patterns remain limited to voting, unstructured debate, or pipeline orchestration. None model deliberation: a phased process where differentiated…

Artificial Intelligence · Computer Science 2026-03-13 Sunil Prakash