Consideration of the side-channel attack to SPECK implemented on Arduino Uno

In this study, we examined a type of side-channel attack, the Correlation Power Analysis (CPA) attack, which analyzes the correct key of the cipher by calculating the correlation between power consumption and intermediate data. The authors also examined side-channel attacks using various attack techniques. The authors found that light-weight cipher SPECK may not resist side-channel attacks because it requires too few resources for a successful attack. Furthermore, the authors investigated the minimum number of plain texts needed for attacking. As a result, it was found that 50 plain texts are sufficient for a successful attack.