Improved Power Analysis Attacks on Falcon

ePrint Report: Improved Power Analysis Attacks on Falcon

Shiduo Zhang, Xiuhan Lin, Yang Yu, Weijia Wang

Falcon is one of the three post-quantum signature schemes selected for standardization by NIST. Due to its low bandwidth and high efficiency, Falcon is seen as an attractive option for quantum-safe embedded systems. In this work, we study Falcon's side-channel resistance by analysing its Gaussian samplers. Our results are mainly twofold.


The first result is an improved key recovery exploiting the leakage within the …

analysis attacks bandwidth channel efficiency embedded embedded systems eprint report falcon high key low nist post-quantum power quantum quantum-safe report result results safe side-channel signature standardization study systems work