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Towards Access Control Aware P2P Data Management Systems

Publications associées (33)

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Three's a Crowd?

Christopher Tucci, Gianluigi Viscusi

According to conventional wisdom on crowdsourcing, the number of people defines the crowd and maximization of this number is often assumed to be the goal of any crowdsourcing exercise. However, some structural characteristics of the crowd might be more imp ...

Oxford University Press2018

Implications of Position in Cryptography

Handan Kilinç Alper

In our daily lives, people or devices frequently need to learn their location for many reasons as some services depend on the absolute location or the proximity. The outcomes of positioning systems can have critical effects e.g., on military, emergency. Th ...

EPFL2018

Contactless Access Control Based on Distance Bounding

Serge Vaudenay

Contactless access control systems are critical for security but often vulnerable to relay attacks. In this paper, we define an integrated security and privacy model for access control using distance bounding (DB) which is the most robust solution to preve ...

2017

Privacy-Preserving Photo Sharing based on a Public Key Infrastructure

Touradj Ebrahimi, Lin Yuan, David Mc Nally

A significant number of pictures are posted to social media sites or exchanged through instant messaging and cloud-based sharing services. Most social media services offer a range of access control mechanisms to protect users privacy. As it is not in the b ...

Spie-Int Soc Optical Engineering2015

DISTINGUISHING “CROWDED” ORGANIZATIONS FROM GROUPS AND COMMUNITIES: IS THREE A CROWD?

Christopher Tucci, Gianluigi Viscusi

In conventional wisdom on crowdsourcing, the number of people define the crowd and maximizing this number is often assumed to be the goal of any crowdsourcing exercise. However, we propose that there are structural characteristics of the crowd that might b ...

SSRN2015

Towards Secure Distance Bounding

Serge Vaudenay, Aikaterini Mitrokotsa

Relay attacks (and, more generally, man-in-the-middle attacks) are a serious threat against many access control and payment schemes. In this work, we present distance-bounding protocols, how these can deter relay attacks, and the security models formalizin ...

2013

Optinal Source-Based Filtering of Malicious Traffic

In this paper, we consider the problem of blocking malicious traffic on the Internet via source-based filtering. In particular, we consider filtering via access control lists (ACLs): These are already available at the routers today, but are a scarce resour ...

2012

SenGuard: Passive User Identification on Smartphones Using Multiple Sensors

Jiangyan Yang, Feng Yang

User identification and access control have become a high demand feature on mobile devices because those devices are wildly used by employees in corporations and government agencies for business and store increasing amount of sensitive data. This paper des ...

2011

Enhancing Park and Ride with access control: A case study of Southampton

Implementing and promoting more sustainable forms of urban transport are key policies of Local Authorities throughout the UK. Park and Ride (P&R) is one such system implemented widely in the UK, especially in historic towns and cities with limited road and ...

Elsevier2011

Silicon oxide deposition for enhanced optical switching in polydimethylsiloxane-liquid crystal hybrids

Demetri Psaltis, Andreas Vasdekis, Julien Cuennet, Luciano De Sio

We report an optical switch based on a diffraction grating by combining PDMS microstructures with a photo-responsive Nematic Liquid Crystal (NLC). The grating was realized via replica molding and was subsequently coated with a thin SiO layer. SiO induced a ...

2011