Publication

Deniable RSA Signature: The Raise and Fall of Ali Baba

Publications associées (34)

Building Privacy-Preserving Cryptographic Credentials from Federated Online Identities

Federated identity providers, e.g., Facebook and PayPal, offer a convenient means for authenticating users to third-party applications. Unfortunately such cross-site authentications carry privacy and tracking risks. For example, federated identity provider ...

Association for Computing Machinery2016

Trustworthy Biometric Verification under Spoofing Attacks

Ivana Chingovska

The need for automation of the identity recognition process for a vast number of applications resulted in great advancement of biometric systems in the recent years. Yet, many studies indicate that these systems suffer from vulnerabilities to spoofing (pre ...

EPFL2016

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

Private and Secure Public-Key Distance Bounding: Application to NFC Payment

Serge Vaudenay

Distance-Bounding is used to defeat relay attacks. For wireless payment systems, the payment terminal is not always online. So, the protocol must rely on a public key for the prover (payer). We propose a generic transformation of a (weakly secure) symmetri ...

Springer2015

TOA: a tag-owner-assisting RFID authentication protocol toward access control and ownership transfer

Chen Zhang, Chao Wang, Qiang Wang, Lei Xie

This paper addresses radio frequency identification (RFID) authentication and ownership transfer in offline scenarios. Four typical related works are reviewed in detail. A series of shortcomings and vulnerabilities of them are pointed out. A new RFID authe ...

Wiley-Blackwell2014

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

Establishing Trusted Identities

Rafik Chaabouni

Many online transactions require the sharing of identity information, even though this sharing poses substantial trust challenges, both for the sender and the receiver. For this reason, Internet must provide channels to ensure a secure, reliable, private, ...

2012

Scalable and Secure Polling in Dynamic Distributed Networks

Rachid Guerraoui, Anne-Marie Kermarrec, Hamza Harkous, Florian Huc

We consider the problem of securely conducting a poll in synchronous dynamic networks equipped with a Public Key Infrastructure (PKI). Whereas previous distributed solutions had a communication cost of O(n^2) in an n nodes system, we present SPP (Secure an ...

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

"La consommation culturelle comme processus de construction identitaire : l'exemple du programme 20ans / 20 francs à Genève"

Mischa-Sébastien Piraud

"We conducted an evaluative research on a sample of participants to a Geneva program aiming to increase the access of young people to culture. Once this research was done, we developed questions concerning how identity develops among these people. The mode ...

L'Harmattan2011

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