49 résultats
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The influence of flicker noise on ring oscillator-based TRNGs
Orateur : Licinius-Pompiliu BENEA - Univ. Grenoble Alpes, CEA, LETI
Ring oscillators (ROs) are often used in true random number generators (TRNGs). The jitter of their clock signal, used as a source of randomness, stems from thermal and flicker noises. While thermal noise jitter is often identified as the main source of randomness, flicker noise jitter is not taken into account due to its autocorrelated nature which greatly complexifies modelling. However, it is a[…]-
SemSecuElec
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TRNG
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Remote data extraction through retroreflector hardware implants
Orateur : François Sarrazin, Pierre Granier - University of Rennes, IETR (UMR 6164)
Electromagnetic leakage eavesdropping is an increasingly accessible attack vector due to the democratization of software-defined radio. "TEMPEST" attacks rely on passively listening to the unwanted electromagnetic emanations of a target (computer screen, low speed USB peripheral…) in order to retrieve the transmitted data. However, the range and properties of such leakages are unpredictable.[…]-
SemSecuElec
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TrustSoC : a heterogeneous secure-by-design SoC architecture
Orateur : Raphaële Milan - Université Jean Monnet Saint-Etienne, CNRS, Laboratoire Hubert Curien UMR 5516
Since the 1970s, the complexity of systems on a chip has grown significantly. In order to improve system performance, manufacturers are integrating an increasing number of heterogeneous components on a single silicon chip. The incorporation of these components renders SoCs highly versatile yet significantly complex. Their multipurpose nature makes them suitable for use in a variety of domains,[…]-
SemSecuElec
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FeFET based Logic-in-Memory design, methodologies, tools and open challenges
Orateur : Cédric Marchand - University of Lyon - Lyon Institute of Nanotechnology (UMR CNRS 5270)
Data-centric applications such as artificial intelligence and the Internet of Things (IoT) impose increasingly stringent demands on the performance, the security and the energy efficiency of modern computing architectures. Traditional approaches are often unable to keep pace with these requirements making necessary to explore innovative paradigms such as in-memory computing. This paradigm is[…]-
SemSecuElec
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(On) The Impact of the Micro-architecture on the Masking Countermeasure against Side-Channel Attacks
Orateur : Lorenzo Casalino - CentraleSupélec, IRISA, Inria (SUSHI team)
The masking countermeasure constitutes a provably secure approach against side-channel attacks. Nonetheless, in the software context, the micro-architecture underlying a given CPU potentially induces information leakages undermining the masking's proven security.In this seminar, I will present the research work developed during my Ph.D. at CEA-List in Grenoble. This work addresses, along two axes,[…]-
SemSecuElec
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Side-channel
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Micro-architectural vulnerabilities
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Code Encryption for Confidentiality and Execution Integrity down to Control Signals
Orateur : Théophile Gousselot - Mines Saint-Etienne, CEA, Leti, Centre CMP, F - 13541 Gardanne France
Embedded devices face software and physical fault injections to either extract or tamper with code in memory. The code execution and code intellectual property are threatened. Some existing countermeasures provide Control Flow Integrity (CFI) extended with the confidentiality and integrity of the instructions by chaining all of them through a cryptographic encryption primitive. While tampering[…]-
SemSecuElec
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Fault injection
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Micro-architectural vulnerabilities
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Hardware countermeasures
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