Methods for Masking CRYSTALS-Kyber Against Side-Channel Attacks

ePrint Report: Methods for Masking CRYSTALS-Kyber Against Side-Channel Attacks

Sıla ÖZEREN, Oğuz YAYLA

In the context of post-quantum secure algorithms like CRYSTALS-Kyber, the importance of protecting sensitive polynomial coefficients from side-channel attacks is increasingly recognized. Our research introduces two alternative masking methods to enhance the security of the compression function in Kyber through masking. Prior to this, the topic had been addressed by only one other research study. The "Double and Check" method integrates arithmetic sharing and symmetry adjustments, introducing …

algorithms attacks channel compression context crystals-kyber eprint report function masking post-quantum protecting quantum quantum secure report research security sensitive side-channel side-channel attacks