Publications associées à Certificat racine

Do energy performance certificates allow reliable predictions of actual energy consumption and savings? Learning from the Swiss national database

Jean-Louis Scartezzini, Stefano Cozza, Arno Schlueter

The thermal performance gap in buildings is defined as the difference between the theoretical and the actual energy consumption for heating, and is known to undermine energy retrofit strategies and policies. This study examines the performance gap in retro ...

ELSEVIER SCIENCE SA2020

The Inconvenient Truth about Web Certificates

Jean-Pierre Hubaux, Julien Freudiger, Nevena Vratonjic, Vincent Bindschaedler

HTTPS is the de facto standard for securing Internet communications. Although it is widely deployed, the security provided with HTTPS in practice is dubious. HTTPS may fail to provide security for multiple reasons, mostly due to certificate-based authentic ...

2011

Methods for efficient certificate revocation list compression

Serge Vaudenay, Rafik Chaabouni, Imad Aad, Valtteri Niemi, Atefeh Mashatan

A method for providing efficient management of certificate revocation may comprise storing a list of identifiers of digital certificates including a revocation list defining a list of revoked certificates in an accumulator, storing a witness value in assoc ...

2010

Short chosen-prefix collisions for MD5 and the creation of a rogue CA certificate

Arjen Lenstra, Dag Arne Osvik

We present a refined chosen-prefix collision construction for MD5 that allowed creation of a rogue Certification Authority (CA) certificate, based on a collision with a regular end-user website certificate provided by a commercial CA. Compared to the previ ...

Springer Verlag2009

Chosen-prefix collisions for MD5 and colliding X.509 certificates for different identities

Arjen Lenstra

We present a novel, automated way to find differential paths for MD5. As an application we have shown how, at an approximate expected cost of 2 50 calls to the MD5 compression function, for any two chosen message prefixes P and P′, suffixe ...

2007

DICTATE: DIstributed CerTification Authority with probabilisTic frEshness for Ad Hoc Networks

Jean-Pierre Hubaux, Jun Luo, Patrick Eugster

Securing ad hoc networks is notoriously challenging, notably due to the lack of an on-line infrastructure. In particular, key management is a problem that has been addressed by many researchers but with limited results. In this paper, we consider the case ...

2005

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

Location verification and key management in wireless networks

Srdan Capkun

This thesis is primarily concerned with two security mechanisms for wireless networks: location verification and key management. These mechanisms are potential building blocks in the security architectures of a range of applications. Under location verific ...

EPFL2004