Successful Attack on an FPGA-based WDDL DES Cryptoprocessor Without Place and Route Constraints

Provided by: edaa
Topic: Hardware
Format: PDF
In this paper, the authors propose a preprocessing method to improve Side Channel Attacks (SCAs) on Dual-rail with Precharge Logic (DPL) countermeasure family. The strength of their method is that it uses intrinsic characteristics of the countermeasure: classical methods fail when the countermeasure is perfect, whereas their method still works and enables them to perform advanced attacks. They have experimentally validated the proposed method by attacking a DES cryptoprocessor embedded in a Field Programmable Gates Array (FPGA), and protected by the Wave Dynamic Differential Logic (WDDL) countermeasure.

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