Naslov
Confused by Confusion: Systematic Evaluation of DPA Resistance of Various S-boxes

Autori
Picek, Stjepan ; Papagiannopoulos, Kostas ; Ege, Barış ; Batina, Lejla ; Jakobović, Domagoj

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Lecture Notes in Computer Science / - , 2014, 374-390

ISBN
978-3-319-13039-2

Skup
Progress in Cryptology -- INDOCRYPT 2014

Mjesto i datum
New Delhi, Indija, 14.12.2014. - 17.12.2014

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
DPA resistance ; S-box

Sažetak
When studying the DPA resistance of S-boxes, the research community is divided in their opinions on what properties should be considered. So far, there exist only a few properties that aim at expressing the resilience of S-boxes to side-channel attacks. Recently, the confusion coefficient property was defined with the intention to characterize the resistance of an S-box. However, there exist no experimental results or methods for creating S-boxes with a “good” confusion coefficient property. In this paper, we employ a novel heuristic technique to generate S-boxes with “better” values of the confusion coefficient in terms of improving their side- channel resistance. We conduct extensive side- channel analysis and detect S-boxes that exhibit previously unseen behavior. For the 4×4 size we find S-boxes that belong to optimal classes, but they exhibit linear behavior when running a CPA attack, therefore preventing an attacker from achieving 100% success rate on recovering the key.

Izvorni jezik
Engleski

Znanstvena područja
Računarstvo

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