Relaxed Threshold Implementations
Zahmoul Rim, Vincent Grosso · 2024
IoT devices by nature are prone to side-channel attacks. Indeed, it is easy for an attacker to get physical access to such devices. Masking is one of the most widespread side-channel attack counter-measures. Among masking, hardware threshold implementations have the advantage of being resistant in the presence of glitches, while maintaining relatively low share refreshing costs. To this end, threshold implementations rely on three properties that should be satisfied: correctness, uniformity, and non-completeness. Recently, some research has relaxed these properties to present more efficient schemes (e.g. two shares threshold).