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Gildas Avoine

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Publications associées (21)

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Security of Distance-Bounding: A Survey

Serge Vaudenay, Gildas Avoine, Martin Benjamin, Srdan Capkun, Aslan Tchamkerten

Distance-bounding protocols allow a verifier to both authenticate a prover and evaluate whether the latter is located in his vicinity. These protocols are of particular interest in contactless systems, e.g. electronic payment or access control systems, whi ...

2018

How to Safely Close a Discussion

Serge Vaudenay, Gildas Avoine

In the secure communication problem, we focus on safe termination. In applications such as electronic transactions, we want each party to be ensured that both sides agree on the same state: success or failure. This problem is equivalent to the well known c ...

2007

Reducing Time Complexity in RFID Systems

Gildas Avoine, Philippe Oechslin, Etienne Dysli

Radio frequency identification systems based on low-cost computing devices is the new plaything that every company would like to adopt. Its goal can be either to improve the productivity or to strengthen the security. Specific identification protocols base ...

2006

Noisy Tags: A Pretty Good Key Exchange Protocol for RFID Tags

Gildas Avoine

We propose a protocol that can be used between an RFID tag and a reader to exchange a secret without performing any expensive computation. Similarly to the famous blocker tag suggested by Juels, Rivest, and Szydlo, our scheme makes use of special tags that ...

2006

Cryptography in radio frequency identification and fair exchange protocols

Gildas Avoine

This PhD thesis focuses on fair exchange protocols and radio frequency identification protocols. Fair exchange stems from a daily life problem: how can two people exchange objects (material or immaterial) fairly, that is, without anyone being hurt in the e ...

EPFL2005

Time-Memory Trade-Offs: False Alarm Detection Using Checkpoints, Extended Version

Gildas Avoine, Philippe Oechslin, Pascal Junod

Since the original publication of Martin Hellman's cryptanalytic time-memory trade-off, a few improvements on the method have been suggested. In all these variants, the cryptanalysis time decreases with the square of the available memory. However, a large ...

2005

Time-Memory Trade-Offs: False Alarm Detection Using Checkpoints

Gildas Avoine, Philippe Oechslin, Pascal Junod

2005

Radio Frequency Identification (RFID) systems aim to identify objects in open environments with neither physical nor visual contact. They consist of transponders inserted into objects, of readers, and usually of a database which contains information about ...

2005

Gracefully Degrading Fair Exchange with Security Modules

Rachid Guerraoui, Marko Vukolic, Gildas Avoine

The fair exchange problem is key to trading electronic items in systems of mutually untrusted parties. In modern variants of such systems, each party is equipped with a security module. The security modules trust each other but can only communicate by exch ...

2005

A Scalable and Provably Secure Hash-Based RFID Protocol

Gildas Avoine, Philippe Oechslin

The biggest challenge for RFID technology is to provide benefits without threatening the privacy of consumers. Many solutions have been suggested but almost as many ways have been found to break them. An approach by Ohkubo, Suzuki and Kinoshita using an in ...

2005