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In this paper we present the first practical attack on the shifted conjugacy-based authentication protocol proposed by P. Dehornoy. We discuss the weaknesses of that primitive and propose ways to improve the protocol.

Group Theory · Mathematics 2007-08-15 Jonathan Longrigg , Alexander Ushakov

Robust dynamic interactions are required to move robots in daily environments alongside humans. Optimisation and learning methods have been used to mimic and reproduce human movements. However, they are often not robust and their…

Robotics · Computer Science 2022-07-14 Carlo Tiseo , Quentin Rouxel , Zhibin Li , Michael Mistry

Yeh et al. recently have proposed a mutual authentication protocol based on EPC Class-1 Gen.-2 standard [1]. They have claimed that their protocol is secure against adversarial attacks and also provides forward secrecy. In this paper we…

Cryptography and Security · Computer Science 2011-02-07 Mohammad Hassan Habibi , Mahmud Gardeshi , Mahdi R. Alaghband

In the future world of safe traffic, intelligent transportation systems play a vital role. The connections between traffic participants and systems on the one and infrastructure and service providers on the other side are a necessary…

Cryptography and Security · Computer Science 2021-02-16 Jonas Vogt , Manuel Fünfrocken , Niclas Wolniak , Horst Wieker

Contact discovery allows new users of a messaging service to find existing contacts that already use that service. Existing users are similarly informed of new users that join. This creates a privacy issue: anyone already on the service…

Computers and Society · Computer Science 2023-12-06 Jaap-Henk Hoepman

The dining cryptographers protocol provides information-theoretically secure sender and recipient untraceability. However, the protocol is considered to be impractical because a malicious participant may disrupt the communication. We…

Cryptography and Security · Computer Science 2015-01-06 Christian Franck , Jeroen van de Graaf

Poor security of Internet routing enables adversaries to divert user data through unintended infrastructures (hijack). Of particular concern -- and the focus of this paper -- are cases where attackers reroute domestic traffic through…

Networking and Internet Architecture · Computer Science 2025-07-22 Satadal Sengupta , Hyojoon Kim , Daniel Jubas , Maria Apostolaki , Jennifer Rexford

Community detection plays a key role in understanding graph structure. However, several recent studies showed that community detection is vulnerable to adversarial structural perturbation. In particular, via adding or removing a small…

Cryptography and Security · Computer Science 2020-09-16 Jinyuan Jia , Binghui Wang , Xiaoyu Cao , Neil Zhenqiang Gong

This paper presents a robust tracking controller for tracking curvature-constrained paths by vehicles/robots with uncertain Dubins dynamics. Although Dubins paths have been widely used in vehicular and robotic applications, robust and…

Systems and Control · Electrical Eng. & Systems 2026-05-26 Xingjian Xue , Sze Zheng Yong

Recent studies reveal that local differential privacy (LDP) protocols are vulnerable to data poisoning attacks where an attacker can manipulate the final estimate on the server by leveraging the characteristics of LDP and sending carefully…

Cryptography and Security · Computer Science 2025-01-28 Xiaoguang Li , Zitao Li , Ninghui Li , Wenhai Sun

We propose PrYVeCT, a private-yet-verifiable contact tracing system. PrYVeCT works also as an authorization framework allowing for the definition of fine-grained policies, which a certain facility can define and apply to better model its…

Cryptography and Security · Computer Science 2020-10-20 Andrea Canidio , Gabriele Costa , Letterio Galletta

Supply chain traceability systems have become central in many industries, however, traceability data is often commercially sensitive, and firms seek to keep it confidential to protect their competitive advantage. This is at odds with calls…

Cryptography and Security · Computer Science 2022-04-04 Rob Glew , Ralph Tröger , Sebastian E. Schmittner

The pervasiveness of wireless communication recently gave mobile ad hoc networks (MANET) a significant researchers' attention, due to its innate capabilities of instant communication in many time and mission critical applications. However,…

Cryptography and Security · Computer Science 2007-05-23 Tomasz Ciszkowski , Zbigniew Kotulski

Redundancy and parallelism make decentralized multi-robot systems appealing solutions for the exploration of extreme environments. However, effective cooperation often requires team-wide connectivity and a carefully designed communication…

We address the difficult question of inferring plausible node mobility based only on information from wireless contact traces. Working with mobility information allows richer protocol simulations, particularly in dense networks, but…

Networking and Internet Architecture · Computer Science 2010-01-22 John Whitbeck , Marcelo Dias de Amorim , Vania Conan

This paper considers robust stability analysis of a large network of interconnected uncertain systems. To avoid analyzing the entire network as a single large, lumped system, we model the network interconnections with integral quadratic…

Optimization and Control · Mathematics 2016-11-17 Martin S. Andersen , Anders Hansson , Sina Khoshfetrat Pakazad , Anders Rantzer

Video surveillance always had a negative connotation, among others because of the loss of privacy and because it may not automatically increase public safety. If it was able to detect atypical (i.e. dangerous) situations in real time,…

Computer Vision and Pattern Recognition · Computer Science 2017-07-21 Dominik Rueß , Konstantinos Amplianitis , Niklas Deckers , Michele Adduci , Kristian Manthey , Ralf Reulke

Despite the remarkable progress of deep neural networks (DNNs) in various visual tasks, their vulnerability to adversarial examples raises significant security concerns. Recent adversarial training methods leverage inverse adversarial…

Computer Vision and Pattern Recognition · Computer Science 2025-07-10 Kejia Zhang , Juanjuan Weng , Shaozi Li , Zhiming Luo

We study the problem of reducing the amount of communication in decentralized target tracking. We focus on the scenario where a team of robots are allowed to move on the boundary of the environment. Their goal is to seek a formation so as…

Robotics · Computer Science 2018-08-24 Lifeng Zhou , Pratap Tokekar

Security features must be addressed when escalating a distributed database. The choice between the object oriented and the relational data model, several factors should be considered. The most important of these factors are single and…

Databases · Computer Science 2014-01-31 C. Sunil Kumar , J. Seetha , S. R. Vinotha