<abstract xmlns="http://www.w3.org/1999/xhtml"><p>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.</p></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.

Improving CPA Attack Against DSA and ECDSA

Institute of Computer Science and Mathematics, Faculty of Electrical Engineering and Information Technology, Ilkovičova 3, Bratislava, SK-812 19, Slovak Republic

Department of Electronics and Multimedia Communications, Faculty of Electrical Engineering and Informatics, Letná 9, 04120, Košice, Slovak Republic

Journal of Electrical Engineering

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

{"article-title":"Improving CPA Attack Against DSA and ECDSA"}

In this work, we improved Correlation Power Analysis (CPA) attack against Digital Signature Algorithm (DSA) and its various derivations, such as Elliptic Curve...

Improving CPA Attack Against DSA and ECDSA

Publicado en línea: 14 jul 2015

Páginas: 159 - 163

Recibido: 06 feb 2015

DOI: https://doi.org/10.2478/jee-2015-0025

Palabras clave
side-channel-attacks, correlation power analysis, Hamming distance power model, DSA, ECDSA, PKI

© Faculty of Electrical Engineering and Information Technology, Slovak University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Improving CPA Attack Against DSA and ECDSA

Publicado en línea: 14 jul 2015

Páginas: 159 - 163

Recibido: 06 feb 2015

DOI: https://doi.org/10.2478/jee-2015-0025

Palabras claveside-channel-attacks, correlation power analysis, Hamming distance power model, DSA, ECDSA, PKI

© Faculty of Electrical Engineering and Information Technology, Slovak University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Palabras clave
side-channel-attacks, correlation power analysis, Hamming distance power model, DSA, ECDSA, PKI