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Improving CPA Attack Against DSA and ECDSA Cover
Open Access
|Jul 2015

Abstract

In this work, we improved Correlation Power Analysis (CPA) attack against Digital Signature Algorithm (DSA) and its various derivations, such as Elliptic Curve Digital Signature Algorithm (ECDSA). The attack is aimed against integer multiplication with constant secret operand. We demonstrate this improvement on 16-bit integer multiplier in FPGA. The improvement makes it possible to guess more blocks of key, and the improvement also eliminates errors of simulated attacks what is very important when approximating attack success rate and complexity based on simulated attacks. We also discus a possible efficient countermeasure.

DOI: https://doi.org/10.2478/jee-2015-0025 | Journal eISSN: 1339-309X | Journal ISSN: 1335-3632
Language: English
Page range: 159 - 163
Submitted on: Feb 6, 2015
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Published on: Jul 14, 2015
In partnership with: Paradigm Publishing Services
Publication frequency: 6 issues per year

© 2015 Marek Repka, Michal Varchola, Miloš Drutarovský, published by Slovak University of Technology in Bratislava
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.