Naslov
On the Construction of Hardware-Friendly 4times 4 and 5times 5 S-Boxes

Autori
Picek, Stjepan ; Yang, Bohan ; Rozic, Vladimir ; Mentens, Nele

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Skup
International Conference on Selected Areas in Cryptography

Mjesto i datum
Halifax, Kanada, 10.08.2016. - 12.08.2016

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
None

Sažetak
With the emergence of the Internet of Things and lightweight cryptography, one can observe a gradual shift of interest in the design of block ciphers. Naturally, security is still of paramount importance, but one is willing to trade a part of that security in order to obtain higher speed and/or smaller implementation area. Accordingly, a common met- ric in many cipher proposals has been the gate count for realizing the cipher in hardware. On the other side, it is also important, especially for battery powered devices, to have a small energy consumption. That is why we can observe the following shift of research focus: from the analysis of the energy consumption of existing ciphers and their building blocks to the design of new ciphers and building blocks, specifically for low energy. Existing research results focusing on the energy consumption of symmetric ciphers, suggest that the S-box is the most expensive part in the majority of lightweight implementations. If we only consider purely combinatorial S-boxes, we can focus on reducing the power consumption of the S-box in order to minimize the energy consumption of the overall cipher. In this paper, we propose several methods to obtain 4 × 4 and 5 × 5 S-boxes that are either power or area efficient. Our results show that heuristics should be considered as a viable choice for the generation of S-boxes with good implementation properties.

Izvorni jezik
Engleski

Znanstvena područja
Računarstvo

POVEZANOST RADA