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Seminar
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SemSecuElec
Calibration Done Right: Noiseless Flush+Flush Attacks
Speaker : Guillaume Didier
Caches leak information through timing measurements and so-called side-channel attacks. Several primitives exist with different requirements and trade-offs. Flush+Flush is a stealthy and fast cache attack primitive that uses the timing of the clflush instruction depending on the presence of a line in the cache. However, the CPU interconnect plays a bigger role than thought in these timings, and[…] -
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Seminar
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SemSecuElec
TRAITOR : a multi clock-glitch attack platform reproducing EMI effects at low-cost
Speaker : Ludovic Claudepierre
Electromagnetic injection (EMI) is a common and non-invasive technique used to perform fault attacks. In that case, an electromagnetic wave is radiated by an antenna in the close vicinity of the targeted microcontroller (STM32 in our case).The clock signal is generated thanks to a Phase-Locked-Loop (PLL). The PLL is highly sensitive to EMI and then induces severe disruption on the clock signal[…] -
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Seminar
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SemSecuElec
Unique CAD-compatible SCA-security mechanisms, externally amplified coupling (EAC) attacks and (some) connection
Speaker : Itamar Levi
In this seminar I will first discuss unique computer aided design (CAD) compatible SCA security mechanisms. I will present an approach which can significantly increase the physical security-level of a design, be implemented with conventional design-tools and which does not require any special technological-support. The method consists with a correct by-design utilization of power-management[…] -
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Seminar
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Cryptography
Isogenies over Hessian Model of Elliptic Curves
Speaker : Emmanuel Fouotsa - Université de Bamenda
In this talk we present explicit formulas for isogenies between elliptic curves in (twisted) Hessian form. We examine the numbers of operations in the base field to compute the formulas. In comparison with other isogeny formulas, we note that the obtained formulas for twisted Hessian curves have the lowest costs for processing the kernel and the X-affine formula has the lowest cost for processing[…] -
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Seminar
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Cryptography
Binary codes, hyperelliptic curves, and the Serre bound
Speaker : Ivan Pogildiakov - Rennes
TBA lien: https://seminaire-c2.inria.fr/ -
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Seminar
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Cryptography
New uses in Symmetric Cryptography: from Cryptanalysis to Designing
Speaker : Clémence Bouvier - INRIA
New symmetric primitives are being designed to be run in abstract settings such as Multi-Party Computations (MPC) or Zero-Knowledge (ZK) proof systems. More particularly, these protocols have highlighted the need to minimize the number of multiplications performed by the primitive in large finite fields.<br/> As the number of such primitives grows, it is important to better understand the[…] -