By Sébastien Briais, Stéphane Caron, Jean-Michel Cioranesco, Jean-Luc Danger (auth.), Emmanuel Prouff, Patrick Schaumont (eds.)

This publication constitutes the lawsuits of the 14th foreign Workshop on Cryptographic and Embedded structures, CHES 2012, held in Leuven, Belgium, in September 2012. The 32 papers offered including 1 invited speak have been rigorously reviewed and chosen from a hundred and twenty submissions. The papers are equipped within the following topical sections: intrusive assaults and countermeasures; protecting; enhanced fault assaults and aspect channel research; leakage resiliency and protection research; bodily unclonable services; effective implementations; light-weight cryptography; we nonetheless love RSA; and implementations.

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Additional resources for Cryptographic Hardware and Embedded Systems – CHES 2012: 14th International Workshop, Leuven, Belgium, September 9-12, 2012. Proceedings

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CALL DO_EXIT; Label_70: IF ( ! "; CALL DO_EXIT; SKIPRCHK1: IF ( ! de Abstract. This work presents a novel low-cost optoelectronic setup for time- and spatially resolved analysis of photonic emissions and a corresponding methodology, Simple Photonic Emission Analysis (SPEA). Observing the backside of ICs, the system captures extremly weak photoemissions from switching transistors and relates them to program running in the chip. SPEA utilizes both spatial and temporal information about these emissions to perform side channel analysis of ICs.

Briais et al. If one of the switch-boxes is compromised then the digest output by the path will be altered with high probability and the fault will be detected by the mirror verification routine implemented in the protected processor (Fig. 19). The device could then revert to a safe mode, and sanitize sensitive data. MAC using the co-processor if 1 then revert to safe mode challenge m0,c MAC using the Hamiltonian circuit Fig. 19. Device integrity verification scheme The verification circuit’s size essentially depends on the MAC’s size and complexity.

We noticed that FPGA security relies heavily on obscurity. This ranges from the lack of any documentation on the JTAG access interface, and absence of information on the internal operations, down to the data formats. This works well unless an attacker is determined to discover all this information on their own. Alternatively, more information can be gained through the analysis of the development tools and programming files for some chips. That certainly raises a concern about the amount of information a potential attacker can gain through development kits.

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