Description
The security of integrated circuits is evaluated through the implementation of attacks that exploit their inherent hardware vulnerabilities. Fault injection attacks represent a technique that is commonly employed for this purpose. These techniques permit an attacker to alter the nominal operation of the component in order to obtain confidential information.
Firstly, we propose the utilisation of the thermal effect of an infrared laser bench for the injection of permanent faults into the Flash memory of unpowered components. This novel attack vector gives rise to the delineation of a comprehensive new fault model, encompassing both the physical and application levels.
Secondly, we describe the use of unfocused X-ray sources for the injection of faults into the Flash memories of both powered and unpowered components. Furthermore, the thermal and temporal recovery phenomena are also characterised. The design and characterisation of masks that enable the focused injection of faults are demonstrated.
These novel attacks on unpowered devices, facilitated by fault injection using X-rays and lasers, necessitate a re-evaluation of the effectiveness of protection mechanisms against such attacks, particularly in regard to these novel attack vectors.
Practical infos
Next sessions
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Fine-grained dynamic partitioning against cache-based side channel attacks
Speaker : Nicolas Gaudin - Trasna
The growth of embedded systems takes advantage of architectural advances from modern processors to increase performance while maintaining a low power consumption. Among these advances is the introduction of cache memory into embedded systems. These memories speed up the memory accesses by temporarily storing data close to the execution core. Furthermore, data from different applications share the[…]-
SemSecuElec
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Micro-architectural vulnerabilities
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Hardware architecture
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Side-Channel Based Disassembly on Complex Processors: From Microachitectural Characterization to Probabilistic Models
Speaker : Julien Maillard - CEA
Side-Channel Based Disassembly (SCBD) is a category of Side-Channel Analysis (SCA) that aims at recovering information on the code executed by a processor through the observation of physical side-channels such as power consumption or electromagnetic radiations. While traditional SCA often targets cryptographic keys, SCBD focuses on retrieving assembly code that can hardly be extracted via other[…]-
SemSecuElec
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Side-channel
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Hardware reverse
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PhaseSCA: Exploiting Phase-Modulated Emanations in Side Channels
Speaker : Pierre Ayoub - LAAS-CNRS
In recent years, the limits of electromagnetic side-channel attacks have been significantly expanded.However, while there is a growing literature on increasing attack distance or performance, the discovery of new phenomenons about compromising electromagnetic emanations remains limited. In this work, we identify a novel form of modulation produced by unintentional electromagnetic emanations: phase[…]-
Side-channel
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