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669 résultats
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Séminaire
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SoSysec
Port Contention Goes Portable: Port Contention Side Channels in Web Browsers
Orateur : Thomas Rokicki (Univ Rennes, CNRS, IRISA)
Microarchitectural side-channel attacks can derive secrets from the execution of vulnerable programs. Their implementation in web browsers represents a considerable extension of their attack surface, as a user simply browsing a malicious website, or even a malicious third-party advertisement in a benign cross-origin isolated website, can be a victim.In this talk, we present the first CPU port[…] -
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Séminaire
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SoSysec
The PINED-RQ Family: Differentially Private Indexes for Range Query Processing in Clouds
Orateur : Tristan Allard (IRISA, Université de Rennes 1)
Performing non- aggregate range queries on cloud stored data, while achieving both privacy and efficiency is a challenging problem. With the PINED-RQ family of techniques, we propose constructing a differentially private index to an outsourced encrypted dataset. Efficiency is enabled by using a cleartext index structure to perform range queries. Security relies on both differential privacy (of the[…] -
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Séminaire
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SemSecuElec
Security challenges and opportunities in emerging device technologies: a case study on flexible electronics
Orateur : Nele Mentens - KU Leuven, Belgium
While traditional chips in bulk silicon technology are widely used for reliable and highly ef?cient systems, there are applications that call for devices in other technologies. On the one hand, novel device technologies need to be re-evaluated with respect to potential threats and attacks, and how these can be faced with existing and novel security solutions and methods. On the other hand,[…] -
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Séminaire
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SemSecuElec
Automated software protection for the masses against side-channel attacks
Orateur : Nicolas Belleville
This presentation will present an approach and a tool that answer the need for effective, generic, and easily applicable protections against side-channel attacks. The protection mechanism is based on code polymorphism, so that the observable behaviour of the protected component is variable and unpredictable to the attacker. Our approach combines lightweight specialized runtime code generation with[…] -
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Séminaire
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SemSecuElec
libecc: a flexible open-source ECC library for embedded devices
Orateur : Ryad Benadjila et Arnaud Ebalard
libecc is a software library for elliptic curves based cryptography (ECC), with an API supporting signature algorithms specified in the ISO14888-3 standard.Advanced usages of this library also include the possible implementation of elliptic curve based Diffie-Hellman protocols as well as any algorithm on top of prime fields based elliptic curves (or prime fields, or rings of integers).The[…] -
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Séminaire
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SemSecuElec
Cryptographie légère intrinsèquement résistante aux attaques physiques pour l’Internet des Objets
Orateur : Benjamin Lac
Avec des applications telles que les smart phones , compteurs intelligents, capteurs et autres systèmes industriels de type SCADA, le nombre d objets connectés à Internet atteindrait les 20 milliards d ici 2020. Les contraintes de taille, coût et consommation ainsi que les problématiques de sécurité liées au déploiement de ces objets à si grande échelle ont mené à la conception de systèmes de[…] -