Cryptology ePrint Archive: Report 2017/624
Fast Leakage Assessment
Oscar Reparaz and Benedikt Gierlichs and Ingrid Verbauwhede
Abstract: We describe a fast technique for performing the computationally heavy part of leakage assessment, in any statistical moment (or other property) of the leakage samples distributions. The proposed technique outperforms by orders of magnitude the approach presented at CHES 2015 by Schneider and Moradi. We can carry out evaluations that before took 90 CPU-days in 4 CPU-hours (about a 500-fold speed-up). As a bonus, we can work with exact arithmetic, we can apply kernel-based density estimation methods, we can employ arbitrary pre-processing functions such as absolute value to power traces, and we can perform information-theoretic leakage assessment. Our trick is simple and elegant, and lends itself to an easy and compact implementation. We fit a prototype implementation in about 130 lines of C code.
Category / Keywords: leakage assessment, efficient computation, side-channel analysis, countermeasure
Original Publication (in the same form): IACR-CHES-2017
Date: received 26 Jun 2017, last revised 27 Jun 2017
Contact author: oscar reparaz at esat kuleuven be
Available format(s): PDF | BibTeX Citation
Version: 20170627:194408 (All versions of this report)
Short URL: ia.cr/2017/624
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