Novel Dummy Rounds Schemes as a DPA Countermeasure in PRESENT Cipher
Petr Moucha, Stanislav Jerabek, Martin Novotný · 2020
The Dummy Rounds Side-Channel Attacks countermeasure scheme for digital design has been proposed in earlier work. Its experimental evaluation and analysis revealed weaknesses that resulted in the proposal of an enhanced Dummy Rounds scheme. In this paper, we present the implementation of the proposed enhancement of Dummy Rounds scheme in PRESENT cipher and provide its experimental evaluation using Welch's t-test. We further propose several novel modifications of Dummy Rounds scheme as a solution to other security problems we have encountered. Novel Dummy Rounds scheme, namely its modifications proposed in this paper, are superior to earlier proposed schemes in terms of side-channel leakage prevention.