649 results
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Understanding and fighting fault injections with programming languages
Speaker : Sébastien Michelland - Université Grenoble Alpes, Grenoble INP, LCIS
Would your latest program produce correct results if I skipped a statement in it? Two? Corrupted a variable at random? Then it might not be robust against _fault injection attacks_, which target hardware directly and have such effects. To be fair, nothing really resists them; still, efforts in designing protections have come a long way, relying (perhaps surprisingly) in large part on hardening[…]-
SemSecuElec
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Fault injection
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Acquisition and Exploitation of Traces from Connected Devices
Speaker : Francesco Servida - École des Sciences Criminelles, Université de Lausanne
This presentation aims to give an overview of the traces that can be obtained from connected objects as witnesses or actors at a crime scene. Using several scenarios we cover the challenges of detecting connected devices, the relevant locations for data retrieval and the techniques for acquiring said data. We then present how such data can be useful in helping to understand the dynamics of events[…]-
SemSecuElec
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Embedded systems
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Elliptic curves for SNARK and proof systems
Speaker : Aurore Guillevic - INRIA Rennes
This talk is based on joint works with Diego Aranha, Youssef El Housni, and Simon Masson. Elliptic curves make possible in practice very interesting mechanisms of proofs. The security relies on the difficulty of the discrete log problem and variants. Succinct non-interactive arguments of knowledge (SNARK) are a very fruitful topic, so that given a sequence of instructions that can be quite large,[…] -
From Deciding Knowledge to Intrusion Detection
Speaker : Yannick Chevalier - Université de Toulouse
By interpreting terms as distributions over strings, Abadi and Rogaway proved under suitable assumptions that indistinguishability in the computational setting, accepted as the impossibility for an observer to acquire knowledge from observing a protocol execution, is equivalent to formal equivalence in a symbolic setting. This result led to multiple results on “deciding knowledge” using static[…]-
SoSysec
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Intrusion detection
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Soutenances de stages de M2
Speaker : Gael Claudel et Baptiste Germon - IRISA
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SCA-LDPC: A Code-Based Framework for Key-Recovery Side-Channel Attacks on Post-Quantum Encryption Schemes
Speaker : Denis Nabokov - Université de Lund
Whereas theoretical attacks on standardized crypto primitives rarely lead to actual practical attacks, the situation is different for side-channel attacks. Improvements in the performance of side-channel attacks are of utmost importance. In this paper, we propose a framework to be used in key-recovery side-channel attacks on CCA-secure post-quantum encryption schemes. The basic idea is to[…]