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Publications associées (24)

Privacy-preserving distributed collaborative filtering

Rachid Guerraoui, Anne-Marie Kermarrec, Davide Frey

We propose a new mechanism to preserve privacy while leveraging user profiles in distributed recommender systems. Our mechanism relies on two contributions: (i) an original obfuscation scheme, and (ii) a randomized dissemination protocol. We show that our ...

Springer Wien2016

Building Security Protocols Against Powerful Adversaries

Iris Safaka

As our sensitive data is increasingly carried over the Internet and stored remotely, security in communications becomes a fundamental requirement. Yet, today's security practices are designed around assumptions the validity of which is being challenged. In ...

EPFL2016

Security Analysis of Accountable Anonymity in Dissent

Bryan Alexander Ford, Henry Nathaniel Corrigan-Gibbs

Users often wish to communicate anonymously on the Internet, for example in group discussion or instant messaging forums. Existing solutions are vulnerable to misbehaving users, however, who may abuse their anonymity to disrupt communication. Dining Crypto ...

2014

Distributed real-time dynamic security assessment using intelligent techniques

Maher Kayal, Theodoros Kyriakidis, Karthik Kumar

In real time scenario, transmission (of power) in power systems may not be always ideal i.e. they may be interrupted. As a result, the synchronization among the power generating modules may be lost. Loss of synchronization has a direct effect on the stabil ...

IEEE2013

Distributed Real-Time Dynamic Security Assessment Using Intelligent Techniques

Maher Kayal, Theodoros Kyriakidis, Karthik Kumar

Ieee2013

Comparison of linear and nonlinear plasma response models for non-axisymmetric perturbations

Wilfred Anthony Cooper

With the installation of non-axisymmetric coil systems on major tokamaks for the purpose of studying the prospects of ELM-free operation, understanding the plasma response to the applied fields is a crucial issue. Application of different response models, ...

American Institute of Physics2013

Comparisons of linear and nonlinear plasma response models for non-axisymmetric perturbations

Wilfred Anthony Cooper

American Institute of Physics2013

On the Pseudorandom Function Assumption in (Secure) Distance-Bounding Protocols

Serge Vaudenay, Aikaterini Mitrokotsa

In this paper, we show that many formal and informal security results on distance-bounding (DB) protocols are incorrect/incomplete. We identify that this inadequacy stems from the fact that the pseudorandom function (PRF) assumption alone, invoked in many ...

Springer2012

Using the Cloud to Determine Key Strengths

Arjen Lenstra, Thorsten Kleinjung

We develop a new methodology to assess cryptographic key strength using cloud computing, by calculating the true economic cost of (symmetric- or private-) key retrieval for the most common cryptographic primitives. Although the present paper gives the curr ...

2011

Evaluating Static Source Code Analysis Tools

Thomas Hofer

This thesis presents the results of an evaluation of source code analyzers. Such tools constitute an inexpensive, efficient and fast way of removing the most common vulnerabilities in a software project, even though not all security flaws can be detected. ...

2010

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