# Successful Attack on an FPGA-based Automatically Placed and Routed WDDL+ Crypto Processor.

Abstract : In this paper, we report the first successful attack on a DES crypto co-processor protected by the Positive'' Wave Dynamic Differential Logic (WDDL+) and embedded in a Field Programmable Gates Array (FPGA). This attack is unambigous as the full key is retrieved. We experimentally show that this countermeasure resists to Differential Power Analysis (DPA), but can be broken by a totally non-invasive Electro-Magnetic Analysis (EMA) method. The method relies on two stages, the first being a localisation phase by means of cartography, and the second being the EMA attack on the most relevant area.
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Cited literature [16 references]

https://hal.archives-ouvertes.fr/hal-00339858
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Submitted on : Wednesday, November 19, 2008 - 11:19:20 AM
Last modification on : Wednesday, March 23, 2022 - 10:24:01 AM
Long-term archiving on: : Tuesday, June 28, 2011 - 5:53:58 PM

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date09_wddl_fpga.pdf
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• HAL Id : hal-00339858, version 1

### Citation

Laurent Sauvage, Sylvain Guilley, Jean-Luc Danger, Yves Mathieu, Maxime Nassar. Successful Attack on an FPGA-based Automatically Placed and Routed WDDL+ Crypto Processor.. 2008. ⟨hal-00339858⟩

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