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Panagiotis Papadimitratos

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Publications associées (45)

Global Navigation Satellite Systems (GNSS) - Attacks and Countermeasures

Aleksandar Jovanovic, Panagiotis Papadimitratos

Increasing numbers of mobile computing devices, user-portable, or embedded in vehicles, cargo containers, or the physical space, need to be aware of their location in order to provide a wide range of commercial services. Most often, mobile devices obtain t ...

2008

“On the Road” - Reflections on the security of Vehicular communication systems

Panagiotis Papadimitratos

Vehicular communication (VC) systems have recently drawn the attention of industry, authorities, and academia. A consensus on the need to secure VC systems and protect the privacy of their users led to concerted efforts to design security architectures. In ...

2008

GossiCrypt: Wireless Sensor Network Data Confidentiality Against Parasitic Adversaries

Jean-Pierre Hubaux, Jun Luo, Panagiotis Papadimitratos

Resource and cost constraints remain a challenge for wireless sensor network security. In this paper, we propose a new approach to protect confidentiality against a parasitic adversary, which seeks to exploit sensor networks by obtaining measurements in an ...

2008

Impact of Vehicular Communications Security on Transportation Safety

Jean-Pierre Hubaux, Panagiotis Papadimitratos

Transportation safety, one of the main driving forces of the development of vehicular communication (VC) systems, relies on high-rate safety messaging (beaconing). At the same time, there is consensus among authorities, industry, and academia on the need t ...

2008

VANET Connectivity Analysis

Olivier Dousse, Jean-Pierre Hubaux, Mohamed Kafsi, Panagiotis Papadimitratos

Vehicular Ad Hoc Networks (VANETs) are a peculiar subclass of mobile ad hoc networks that raise a number of technical challenges, notably from the point of view of their mobility models. In this paper, we provide a thorough analysis of the connectivity of ...

2008

Fast exclusion of errant devices from vehicular networks

Jean-Pierre Hubaux, Maxime Raya, Panagiotis Papadimitratos

Vehicular networks, in which cars communicate wirelessly to exchange information on traffic conditions, offer a promising way to improve road safety. Yet ensuring the correct functioning of such a system is essential: malicious or faulty devices transmitti ...

2008

Protection and Fundamental Vulnerability of Global Navigation Satellite Systems (GNSS)

Aleksandar Jovanovic, Panagiotis Papadimitratos

An increasing number of mobile applications and services require that devices are aware of their location. Global navigation satellite systems (GNSS) are the predominant enabling technology. But location information provided by commercial GNSS is not secur ...

2008

TraNS: Realistic Joint Traffic and Network Simulator for VANETs

Jean-Pierre Hubaux, Matthias Grossglauser, Maxime Raya, Ada Lezama Lugo, Panagiotis Papadimitratos

Realistic simulation is a necessary tool for the proper evaluation of newly developed protocols for Vehicular Ad Hoc Networks (VANETs). Several recent efforts focus on achieving this goal. Yet, to this date, none of the proposed solutions fulfill all the r ...

2008

Certificate Revocation List Distribution in Vehicular Communication Systems

Jean-Pierre Hubaux, Ghita Mezzour, Panagiotis Papadimitratos

The need to evict compromised, faulty, or illegitimate nodes is well understood in prominent projects designing security architectures for Vehicular Communication (VC) systems. The basic approach envisioned to achieve this is via distri- bution of Certific ...

2008

Report on the "Secure Vehicular Communications: Results and Challenges Ahead" Workshop

Jean-Pierre Hubaux, Panagiotis Papadimitratos

Report on the ``Secure Vehicular Communications: Results and Challenges Ahead'' Workshop ...

2008

Wireless Sensor Networking for Rain-fed Farming Decision Support

Jean-Pierre Hubaux, Jacques Panchard, Panagiotis Papadimitratos, Sanjeev Kumar

Wireless sensor networks (WSNs) can be a valuable decision- support tool for farmers. This motivated our deployment of a WSN system to support rain-fed agriculture in India. We defined promising use cases and resolved technical challenges throughout a two- ...

2008

Secure Neighbor Discovery in Wireless Networks: Formal Investigation of Possibility

Jean-Pierre Hubaux, Marcin Poturalski, Panagiotis Papadimitratos

Wireless communication enables a broad spectrum of applications, ranging from commodity to tactical systems. Neighbor discovery (ND), that is, determining which devices are within direct radio communication, is a building block of network protocols and app ...

2008

Secure vehicular communication systems: design and architecture

Jean-Pierre Hubaux, Julien Freudiger, Maxime Raya, Panagiotis Papadimitratos

2008

Efficient and Robust Pseudonymous Authentication in VANET

Jean-Pierre Hubaux, Panagiotis Papadimitratos

Effective and robust operations, as well as security and privacy are critical for the deployment of vehicular ad hoc networks (VANETs). Efficient and easy- to-manage security and privacy-enhancing mechanisms are essential for the wide-spread adoption of th ...

ACM2007

Efficient and Robust Secure Aggregation for Sensor Networks

Jean-Pierre Hubaux, Karl Aberer, Marcin Poturalski, Panagiotis Papadimitratos, Parisa Haghani

Wireless Sensor Networks (WSNs) rely on in-network aggregation for efficiency, however, this comes at a price: A single adversary can severely influence the outcome by contributing an arbitrary partial aggregate value. Secure in-network aggregation can det ...

2007

Architecture for Secure and Private Vehicular Communications

Jean-Pierre Hubaux, Levente Buttyan, Maxime Raya, Panagiotis Papadimitratos

The deployment of vehicular communication (VC) systems is strongly dependent on their security and privacy features. In this paper, we propose a security architecture for VC. The primary objectives of the architecture include the management of identities a ...

2007

Secure Position-Based Routing for VANETs

Charles Harsch, Panagiotis Papadimitratos

Vehicular communication (VC) systems have the potential to improve road safety and driving comfort. Nevertheless, securing the operation is a prerequisite for deployment. So far, the security of VC applications has mostly drawn the attention of research ef ...

2007

Eviction of Misbehaving and Faulty Nodes in Vehicular Networks

Jean-Pierre Hubaux, Daniel Jungels, Maxime Raya, Imad Aad, Panagiotis Papadimitratos

Vehicular Networks (VNs) are emerging, among civilian applications, as a convincing instantiation of the mobile networking technology. However, security is a critical factor and a significant challenge to be met. Misbehaving or faulty network nodes have to ...

2007

Mix-Zones for Location Privacy in Vehicular Networks

Jean-Pierre Hubaux, Julien Freudiger, Mark Felegyhazi, Maxime Raya, Panagiotis Papadimitratos

Vehicular Networks (VNs) seek to provide, among other applications, safer driving conditions. To do so, vehicles need to periodically broadcast safety messages providing precise position information to nearby vehicles. However, this frequent messaging (e.g ...

2007

How to specify and how to prove correctness of secure routing protocols for MANET

Jean-Pierre Hubaux, Panagiotis Papadimitratos

Secure routing protocols for mobile ad hoc networks have been developed recently yet, it has been unclear what are the properties they achieve, as a formal analysis of these protocols is mostly lacking. In this paper we are concerned with this problem, how ...

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